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c906108c | 1 | /* Everything about breakpoints, for GDB. |
8926118c | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
a6d9a66e | 21 | #include "arch-utils.h" |
c906108c | 22 | #include <ctype.h> |
776592bf | 23 | #include "hashtab.h" |
c906108c SS |
24 | #include "symtab.h" |
25 | #include "frame.h" | |
26 | #include "breakpoint.h" | |
1042e4c0 | 27 | #include "tracepoint.h" |
c906108c SS |
28 | #include "gdbtypes.h" |
29 | #include "expression.h" | |
30 | #include "gdbcore.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "value.h" | |
33 | #include "command.h" | |
34 | #include "inferior.h" | |
45741a9c | 35 | #include "infrun.h" |
c906108c SS |
36 | #include "gdbthread.h" |
37 | #include "target.h" | |
38 | #include "language.h" | |
50f182aa | 39 | #include "gdb-demangle.h" |
0ba1096a | 40 | #include "filenames.h" |
c906108c SS |
41 | #include "annotate.h" |
42 | #include "symfile.h" | |
43 | #include "objfiles.h" | |
0378c332 | 44 | #include "source.h" |
c5f0f3d0 | 45 | #include "linespec.h" |
c94fdfd0 | 46 | #include "completer.h" |
5b7f31a4 | 47 | #include "gdb.h" |
8b93c638 | 48 | #include "ui-out.h" |
e1507482 | 49 | #include "cli/cli-script.h" |
fe898f56 | 50 | #include "block.h" |
a77053c2 | 51 | #include "solib.h" |
84acb35a JJ |
52 | #include "solist.h" |
53 | #include "observer.h" | |
60250e8b | 54 | #include "exceptions.h" |
765dc015 | 55 | #include "memattr.h" |
f7f9143b | 56 | #include "ada-lang.h" |
d1aa2f50 | 57 | #include "top.h" |
79a45b7d | 58 | #include "valprint.h" |
4efc6507 | 59 | #include "jit.h" |
a96d9b2e | 60 | #include "xml-syscall.h" |
65d79d4b | 61 | #include "parser-defs.h" |
55aa24fb SDJ |
62 | #include "gdb_regex.h" |
63 | #include "probe.h" | |
e9cafbcc | 64 | #include "cli/cli-utils.h" |
be34f849 | 65 | #include "continuations.h" |
1bfeeb0f JL |
66 | #include "stack.h" |
67 | #include "skip.h" | |
b775012e | 68 | #include "ax-gdb.h" |
e2e4d78b | 69 | #include "dummy-frame.h" |
c906108c | 70 | |
d3ce09f5 SS |
71 | #include "format.h" |
72 | ||
1042e4c0 SS |
73 | /* readline include files */ |
74 | #include "readline/readline.h" | |
75 | #include "readline/history.h" | |
76 | ||
77 | /* readline defines this. */ | |
78 | #undef savestring | |
79 | ||
034dad6f | 80 | #include "mi/mi-common.h" |
6dddc817 | 81 | #include "extension.h" |
104c1213 | 82 | |
e7e8980f YQ |
83 | /* Enums for exception-handling support. */ |
84 | enum exception_event_kind | |
85 | { | |
86 | EX_EVENT_THROW, | |
591f19e8 | 87 | EX_EVENT_RETHROW, |
e7e8980f YQ |
88 | EX_EVENT_CATCH |
89 | }; | |
90 | ||
4a64f543 | 91 | /* Prototypes for local functions. */ |
c906108c | 92 | |
a14ed312 | 93 | static void enable_delete_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void enable_once_command (char *, int); |
c906108c | 96 | |
816338b5 SS |
97 | static void enable_count_command (char *, int); |
98 | ||
a14ed312 | 99 | static void disable_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void enable_command (char *, int); |
c906108c | 102 | |
95a42b64 TT |
103 | static void map_breakpoint_numbers (char *, void (*) (struct breakpoint *, |
104 | void *), | |
105 | void *); | |
c906108c | 106 | |
a14ed312 | 107 | static void ignore_command (char *, int); |
c906108c | 108 | |
4efb68b1 | 109 | static int breakpoint_re_set_one (void *); |
c906108c | 110 | |
348d480f PA |
111 | static void breakpoint_re_set_default (struct breakpoint *); |
112 | ||
983af33b SDJ |
113 | static void create_sals_from_address_default (char **, |
114 | struct linespec_result *, | |
115 | enum bptype, char *, | |
116 | char **); | |
117 | ||
118 | static void create_breakpoints_sal_default (struct gdbarch *, | |
119 | struct linespec_result *, | |
e7e0cddf | 120 | char *, char *, enum bptype, |
983af33b SDJ |
121 | enum bpdisp, int, int, |
122 | int, | |
123 | const struct breakpoint_ops *, | |
44f238bb | 124 | int, int, int, unsigned); |
983af33b SDJ |
125 | |
126 | static void decode_linespec_default (struct breakpoint *, char **, | |
127 | struct symtabs_and_lines *); | |
128 | ||
a14ed312 | 129 | static void clear_command (char *, int); |
c906108c | 130 | |
a14ed312 | 131 | static void catch_command (char *, int); |
c906108c | 132 | |
a9634178 | 133 | static int can_use_hardware_watchpoint (struct value *); |
c906108c | 134 | |
98deb0da | 135 | static void break_command_1 (char *, int, int); |
c906108c | 136 | |
a14ed312 | 137 | static void mention (struct breakpoint *); |
c906108c | 138 | |
348d480f PA |
139 | static struct breakpoint *set_raw_breakpoint_without_location (struct gdbarch *, |
140 | enum bptype, | |
c0a91b2b | 141 | const struct breakpoint_ops *); |
3742cc8b YQ |
142 | static struct bp_location *add_location_to_breakpoint (struct breakpoint *, |
143 | const struct symtab_and_line *); | |
144 | ||
4a64f543 MS |
145 | /* This function is used in gdbtk sources and thus can not be made |
146 | static. */ | |
63c252f8 | 147 | struct breakpoint *set_raw_breakpoint (struct gdbarch *gdbarch, |
348d480f | 148 | struct symtab_and_line, |
c0a91b2b TT |
149 | enum bptype, |
150 | const struct breakpoint_ops *); | |
c906108c | 151 | |
06edf0c0 PA |
152 | static struct breakpoint * |
153 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
154 | enum bptype type, | |
a1aa2221 LM |
155 | const struct breakpoint_ops *ops, |
156 | int loc_enabled); | |
06edf0c0 | 157 | |
76897487 KB |
158 | static void breakpoint_adjustment_warning (CORE_ADDR, CORE_ADDR, int, int); |
159 | ||
a6d9a66e UW |
160 | static CORE_ADDR adjust_breakpoint_address (struct gdbarch *gdbarch, |
161 | CORE_ADDR bpaddr, | |
88f7da05 | 162 | enum bptype bptype); |
76897487 | 163 | |
6c95b8df PA |
164 | static void describe_other_breakpoints (struct gdbarch *, |
165 | struct program_space *, CORE_ADDR, | |
5af949e3 | 166 | struct obj_section *, int); |
c906108c | 167 | |
85d721b8 PA |
168 | static int watchpoint_locations_match (struct bp_location *loc1, |
169 | struct bp_location *loc2); | |
170 | ||
f1310107 TJB |
171 | static int breakpoint_location_address_match (struct bp_location *bl, |
172 | struct address_space *aspace, | |
173 | CORE_ADDR addr); | |
174 | ||
a14ed312 | 175 | static void breakpoints_info (char *, int); |
c906108c | 176 | |
d77f58be SS |
177 | static void watchpoints_info (char *, int); |
178 | ||
e5a67952 MS |
179 | static int breakpoint_1 (char *, int, |
180 | int (*) (const struct breakpoint *)); | |
c906108c | 181 | |
4efb68b1 | 182 | static int breakpoint_cond_eval (void *); |
c906108c | 183 | |
4efb68b1 | 184 | static void cleanup_executing_breakpoints (void *); |
c906108c | 185 | |
a14ed312 | 186 | static void commands_command (char *, int); |
c906108c | 187 | |
a14ed312 | 188 | static void condition_command (char *, int); |
c906108c | 189 | |
c5aa993b JM |
190 | typedef enum |
191 | { | |
192 | mark_inserted, | |
193 | mark_uninserted | |
194 | } | |
195 | insertion_state_t; | |
c906108c | 196 | |
0bde7532 | 197 | static int remove_breakpoint (struct bp_location *, insertion_state_t); |
6c95b8df | 198 | static int remove_breakpoint_1 (struct bp_location *, insertion_state_t); |
c906108c | 199 | |
e514a9d6 | 200 | static enum print_stop_action print_bp_stop_message (bpstat bs); |
c906108c | 201 | |
4efb68b1 | 202 | static int watchpoint_check (void *); |
c906108c | 203 | |
a14ed312 | 204 | static void maintenance_info_breakpoints (char *, int); |
c906108c | 205 | |
a14ed312 | 206 | static int hw_breakpoint_used_count (void); |
c906108c | 207 | |
a1398e0c PA |
208 | static int hw_watchpoint_use_count (struct breakpoint *); |
209 | ||
210 | static int hw_watchpoint_used_count_others (struct breakpoint *except, | |
211 | enum bptype type, | |
212 | int *other_type_used); | |
c906108c | 213 | |
a14ed312 | 214 | static void hbreak_command (char *, int); |
c906108c | 215 | |
a14ed312 | 216 | static void thbreak_command (char *, int); |
c906108c | 217 | |
816338b5 SS |
218 | static void enable_breakpoint_disp (struct breakpoint *, enum bpdisp, |
219 | int count); | |
c906108c | 220 | |
a14ed312 | 221 | static void stop_command (char *arg, int from_tty); |
7a292a7a | 222 | |
a14ed312 | 223 | static void stopin_command (char *arg, int from_tty); |
7a292a7a | 224 | |
a14ed312 | 225 | static void stopat_command (char *arg, int from_tty); |
7a292a7a | 226 | |
a14ed312 | 227 | static void tcatch_command (char *arg, int from_tty); |
7a292a7a | 228 | |
d03285ec UW |
229 | static void detach_single_step_breakpoints (void); |
230 | ||
ef370185 JB |
231 | static int find_single_step_breakpoint (struct address_space *aspace, |
232 | CORE_ADDR pc); | |
233 | ||
fe3f5fa8 | 234 | static void free_bp_location (struct bp_location *loc); |
f431efe5 PA |
235 | static void incref_bp_location (struct bp_location *loc); |
236 | static void decref_bp_location (struct bp_location **loc); | |
fe3f5fa8 | 237 | |
39d61571 | 238 | static struct bp_location *allocate_bp_location (struct breakpoint *bpt); |
a5606eee | 239 | |
44702360 PA |
240 | /* update_global_location_list's modes of operation wrt to whether to |
241 | insert locations now. */ | |
242 | enum ugll_insert_mode | |
243 | { | |
244 | /* Don't insert any breakpoint locations into the inferior, only | |
245 | remove already-inserted locations that no longer should be | |
246 | inserted. Functions that delete a breakpoint or breakpoints | |
247 | should specify this mode, so that deleting a breakpoint doesn't | |
248 | have the side effect of inserting the locations of other | |
249 | breakpoints that are marked not-inserted, but should_be_inserted | |
250 | returns true on them. | |
251 | ||
252 | This behavior is useful is situations close to tear-down -- e.g., | |
253 | after an exec, while the target still has execution, but | |
254 | breakpoint shadows of the previous executable image should *NOT* | |
255 | be restored to the new image; or before detaching, where the | |
256 | target still has execution and wants to delete breakpoints from | |
257 | GDB's lists, and all breakpoints had already been removed from | |
258 | the inferior. */ | |
259 | UGLL_DONT_INSERT, | |
260 | ||
261 | /* May insert breakpoints if breakpoints_always_inserted_mode is | |
262 | true. */ | |
04086b45 PA |
263 | UGLL_MAY_INSERT, |
264 | ||
265 | /* Insert locations now, even if breakpoints_always_inserted_mode is | |
266 | false. */ | |
267 | UGLL_INSERT | |
44702360 PA |
268 | }; |
269 | ||
270 | static void update_global_location_list (enum ugll_insert_mode); | |
a5606eee | 271 | |
44702360 | 272 | static void update_global_location_list_nothrow (enum ugll_insert_mode); |
74960c60 | 273 | |
d77f58be | 274 | static int is_hardware_watchpoint (const struct breakpoint *bpt); |
74960c60 VP |
275 | |
276 | static void insert_breakpoint_locations (void); | |
a5606eee | 277 | |
a96d9b2e SDJ |
278 | static int syscall_catchpoint_p (struct breakpoint *b); |
279 | ||
1042e4c0 SS |
280 | static void tracepoints_info (char *, int); |
281 | ||
282 | static void delete_trace_command (char *, int); | |
283 | ||
284 | static void enable_trace_command (char *, int); | |
285 | ||
286 | static void disable_trace_command (char *, int); | |
287 | ||
288 | static void trace_pass_command (char *, int); | |
289 | ||
558a9d82 YQ |
290 | static void set_tracepoint_count (int num); |
291 | ||
9c06b0b4 TJB |
292 | static int is_masked_watchpoint (const struct breakpoint *b); |
293 | ||
b775012e LM |
294 | static struct bp_location **get_first_locp_gte_addr (CORE_ADDR address); |
295 | ||
983af33b SDJ |
296 | /* Return 1 if B refers to a static tracepoint set by marker ("-m"), zero |
297 | otherwise. */ | |
298 | ||
299 | static int strace_marker_p (struct breakpoint *b); | |
0fb4aa4b | 300 | |
2060206e PA |
301 | /* The abstract base class all breakpoint_ops structures inherit |
302 | from. */ | |
ab04a2af | 303 | struct breakpoint_ops base_breakpoint_ops; |
2060206e PA |
304 | |
305 | /* The breakpoint_ops structure to be inherited by all breakpoint_ops | |
306 | that are implemented on top of software or hardware breakpoints | |
307 | (user breakpoints, internal and momentary breakpoints, etc.). */ | |
308 | static struct breakpoint_ops bkpt_base_breakpoint_ops; | |
309 | ||
310 | /* Internal breakpoints class type. */ | |
06edf0c0 | 311 | static struct breakpoint_ops internal_breakpoint_ops; |
2060206e PA |
312 | |
313 | /* Momentary breakpoints class type. */ | |
06edf0c0 PA |
314 | static struct breakpoint_ops momentary_breakpoint_ops; |
315 | ||
e2e4d78b JK |
316 | /* Momentary breakpoints for bp_longjmp and bp_exception class type. */ |
317 | static struct breakpoint_ops longjmp_breakpoint_ops; | |
318 | ||
2060206e PA |
319 | /* The breakpoint_ops structure to be used in regular user created |
320 | breakpoints. */ | |
321 | struct breakpoint_ops bkpt_breakpoint_ops; | |
322 | ||
55aa24fb SDJ |
323 | /* Breakpoints set on probes. */ |
324 | static struct breakpoint_ops bkpt_probe_breakpoint_ops; | |
325 | ||
e7e0cddf | 326 | /* Dynamic printf class type. */ |
c5867ab6 | 327 | struct breakpoint_ops dprintf_breakpoint_ops; |
e7e0cddf | 328 | |
9d497a19 PA |
329 | /* One (or perhaps two) breakpoints used for software single |
330 | stepping. */ | |
331 | ||
332 | static void *single_step_breakpoints[2]; | |
333 | static struct gdbarch *single_step_gdbarch[2]; | |
334 | ||
d3ce09f5 SS |
335 | /* The style in which to perform a dynamic printf. This is a user |
336 | option because different output options have different tradeoffs; | |
337 | if GDB does the printing, there is better error handling if there | |
338 | is a problem with any of the arguments, but using an inferior | |
339 | function lets you have special-purpose printers and sending of | |
340 | output to the same place as compiled-in print functions. */ | |
341 | ||
342 | static const char dprintf_style_gdb[] = "gdb"; | |
343 | static const char dprintf_style_call[] = "call"; | |
344 | static const char dprintf_style_agent[] = "agent"; | |
345 | static const char *const dprintf_style_enums[] = { | |
346 | dprintf_style_gdb, | |
347 | dprintf_style_call, | |
348 | dprintf_style_agent, | |
349 | NULL | |
350 | }; | |
351 | static const char *dprintf_style = dprintf_style_gdb; | |
352 | ||
353 | /* The function to use for dynamic printf if the preferred style is to | |
354 | call into the inferior. The value is simply a string that is | |
355 | copied into the command, so it can be anything that GDB can | |
356 | evaluate to a callable address, not necessarily a function name. */ | |
357 | ||
358 | static char *dprintf_function = ""; | |
359 | ||
360 | /* The channel to use for dynamic printf if the preferred style is to | |
361 | call into the inferior; if a nonempty string, it will be passed to | |
362 | the call as the first argument, with the format string as the | |
363 | second. As with the dprintf function, this can be anything that | |
364 | GDB knows how to evaluate, so in addition to common choices like | |
365 | "stderr", this could be an app-specific expression like | |
366 | "mystreams[curlogger]". */ | |
367 | ||
368 | static char *dprintf_channel = ""; | |
369 | ||
370 | /* True if dprintf commands should continue to operate even if GDB | |
371 | has disconnected. */ | |
372 | static int disconnected_dprintf = 1; | |
373 | ||
5cea2a26 PA |
374 | /* A reference-counted struct command_line. This lets multiple |
375 | breakpoints share a single command list. */ | |
376 | struct counted_command_line | |
377 | { | |
378 | /* The reference count. */ | |
379 | int refc; | |
380 | ||
381 | /* The command list. */ | |
382 | struct command_line *commands; | |
383 | }; | |
384 | ||
385 | struct command_line * | |
386 | breakpoint_commands (struct breakpoint *b) | |
387 | { | |
388 | return b->commands ? b->commands->commands : NULL; | |
389 | } | |
3daf8fe5 | 390 | |
f3b1572e PA |
391 | /* Flag indicating that a command has proceeded the inferior past the |
392 | current breakpoint. */ | |
393 | ||
394 | static int breakpoint_proceeded; | |
395 | ||
956a9fb9 | 396 | const char * |
2cec12e5 AR |
397 | bpdisp_text (enum bpdisp disp) |
398 | { | |
4a64f543 MS |
399 | /* NOTE: the following values are a part of MI protocol and |
400 | represent values of 'disp' field returned when inferior stops at | |
401 | a breakpoint. */ | |
bc043ef3 | 402 | static const char * const bpdisps[] = {"del", "dstp", "dis", "keep"}; |
cc59ec59 | 403 | |
2cec12e5 AR |
404 | return bpdisps[(int) disp]; |
405 | } | |
c906108c | 406 | |
4a64f543 | 407 | /* Prototypes for exported functions. */ |
c906108c | 408 | /* If FALSE, gdb will not use hardware support for watchpoints, even |
4a64f543 | 409 | if such is available. */ |
c906108c SS |
410 | static int can_use_hw_watchpoints; |
411 | ||
920d2a44 AC |
412 | static void |
413 | show_can_use_hw_watchpoints (struct ui_file *file, int from_tty, | |
414 | struct cmd_list_element *c, | |
415 | const char *value) | |
416 | { | |
3e43a32a MS |
417 | fprintf_filtered (file, |
418 | _("Debugger's willingness to use " | |
419 | "watchpoint hardware is %s.\n"), | |
920d2a44 AC |
420 | value); |
421 | } | |
422 | ||
fa8d40ab JJ |
423 | /* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints. |
424 | If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints | |
4a64f543 | 425 | for unrecognized breakpoint locations. |
fa8d40ab JJ |
426 | If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */ |
427 | static enum auto_boolean pending_break_support; | |
920d2a44 AC |
428 | static void |
429 | show_pending_break_support (struct ui_file *file, int from_tty, | |
430 | struct cmd_list_element *c, | |
431 | const char *value) | |
432 | { | |
3e43a32a MS |
433 | fprintf_filtered (file, |
434 | _("Debugger's behavior regarding " | |
435 | "pending breakpoints is %s.\n"), | |
920d2a44 AC |
436 | value); |
437 | } | |
fa8d40ab | 438 | |
765dc015 | 439 | /* If 1, gdb will automatically use hardware breakpoints for breakpoints |
4a64f543 | 440 | set with "break" but falling in read-only memory. |
765dc015 VP |
441 | If 0, gdb will warn about such breakpoints, but won't automatically |
442 | use hardware breakpoints. */ | |
443 | static int automatic_hardware_breakpoints; | |
444 | static void | |
445 | show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty, | |
446 | struct cmd_list_element *c, | |
447 | const char *value) | |
448 | { | |
3e43a32a MS |
449 | fprintf_filtered (file, |
450 | _("Automatic usage of hardware breakpoints is %s.\n"), | |
765dc015 VP |
451 | value); |
452 | } | |
453 | ||
33e5cbd6 PA |
454 | /* If on, gdb will keep breakpoints inserted even as inferior is |
455 | stopped, and immediately insert any new breakpoints. If off, gdb | |
456 | will insert breakpoints into inferior only when resuming it, and | |
457 | will remove breakpoints upon stop. If auto, GDB will behave as ON | |
458 | if in non-stop mode, and as OFF if all-stop mode.*/ | |
459 | ||
72d0e2c5 YQ |
460 | static enum auto_boolean always_inserted_mode = AUTO_BOOLEAN_AUTO; |
461 | ||
33e5cbd6 | 462 | static void |
74960c60 | 463 | show_always_inserted_mode (struct ui_file *file, int from_tty, |
33e5cbd6 | 464 | struct cmd_list_element *c, const char *value) |
74960c60 | 465 | { |
72d0e2c5 | 466 | if (always_inserted_mode == AUTO_BOOLEAN_AUTO) |
3e43a32a MS |
467 | fprintf_filtered (file, |
468 | _("Always inserted breakpoint " | |
469 | "mode is %s (currently %s).\n"), | |
33e5cbd6 PA |
470 | value, |
471 | breakpoints_always_inserted_mode () ? "on" : "off"); | |
472 | else | |
3e43a32a MS |
473 | fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), |
474 | value); | |
74960c60 VP |
475 | } |
476 | ||
33e5cbd6 PA |
477 | int |
478 | breakpoints_always_inserted_mode (void) | |
479 | { | |
72d0e2c5 YQ |
480 | return (always_inserted_mode == AUTO_BOOLEAN_TRUE |
481 | || (always_inserted_mode == AUTO_BOOLEAN_AUTO && non_stop)); | |
33e5cbd6 | 482 | } |
765dc015 | 483 | |
b775012e LM |
484 | static const char condition_evaluation_both[] = "host or target"; |
485 | ||
486 | /* Modes for breakpoint condition evaluation. */ | |
487 | static const char condition_evaluation_auto[] = "auto"; | |
488 | static const char condition_evaluation_host[] = "host"; | |
489 | static const char condition_evaluation_target[] = "target"; | |
490 | static const char *const condition_evaluation_enums[] = { | |
491 | condition_evaluation_auto, | |
492 | condition_evaluation_host, | |
493 | condition_evaluation_target, | |
494 | NULL | |
495 | }; | |
496 | ||
497 | /* Global that holds the current mode for breakpoint condition evaluation. */ | |
498 | static const char *condition_evaluation_mode_1 = condition_evaluation_auto; | |
499 | ||
500 | /* Global that we use to display information to the user (gets its value from | |
501 | condition_evaluation_mode_1. */ | |
502 | static const char *condition_evaluation_mode = condition_evaluation_auto; | |
503 | ||
504 | /* Translate a condition evaluation mode MODE into either "host" | |
505 | or "target". This is used mostly to translate from "auto" to the | |
506 | real setting that is being used. It returns the translated | |
507 | evaluation mode. */ | |
508 | ||
509 | static const char * | |
510 | translate_condition_evaluation_mode (const char *mode) | |
511 | { | |
512 | if (mode == condition_evaluation_auto) | |
513 | { | |
514 | if (target_supports_evaluation_of_breakpoint_conditions ()) | |
515 | return condition_evaluation_target; | |
516 | else | |
517 | return condition_evaluation_host; | |
518 | } | |
519 | else | |
520 | return mode; | |
521 | } | |
522 | ||
523 | /* Discovers what condition_evaluation_auto translates to. */ | |
524 | ||
525 | static const char * | |
526 | breakpoint_condition_evaluation_mode (void) | |
527 | { | |
528 | return translate_condition_evaluation_mode (condition_evaluation_mode); | |
529 | } | |
530 | ||
531 | /* Return true if GDB should evaluate breakpoint conditions or false | |
532 | otherwise. */ | |
533 | ||
534 | static int | |
535 | gdb_evaluates_breakpoint_condition_p (void) | |
536 | { | |
537 | const char *mode = breakpoint_condition_evaluation_mode (); | |
538 | ||
539 | return (mode == condition_evaluation_host); | |
540 | } | |
541 | ||
a14ed312 | 542 | void _initialize_breakpoint (void); |
c906108c | 543 | |
c906108c SS |
544 | /* Are we executing breakpoint commands? */ |
545 | static int executing_breakpoint_commands; | |
546 | ||
c02f5703 MS |
547 | /* Are overlay event breakpoints enabled? */ |
548 | static int overlay_events_enabled; | |
549 | ||
e09342b5 TJB |
550 | /* See description in breakpoint.h. */ |
551 | int target_exact_watchpoints = 0; | |
552 | ||
c906108c | 553 | /* Walk the following statement or block through all breakpoints. |
e5dd4106 | 554 | ALL_BREAKPOINTS_SAFE does so even if the statement deletes the |
4a64f543 | 555 | current breakpoint. */ |
c906108c | 556 | |
5c44784c | 557 | #define ALL_BREAKPOINTS(B) for (B = breakpoint_chain; B; B = B->next) |
c906108c | 558 | |
5c44784c JM |
559 | #define ALL_BREAKPOINTS_SAFE(B,TMP) \ |
560 | for (B = breakpoint_chain; \ | |
561 | B ? (TMP=B->next, 1): 0; \ | |
562 | B = TMP) | |
c906108c | 563 | |
4a64f543 MS |
564 | /* Similar iterator for the low-level breakpoints. SAFE variant is |
565 | not provided so update_global_location_list must not be called | |
566 | while executing the block of ALL_BP_LOCATIONS. */ | |
7cc221ef | 567 | |
876fa593 JK |
568 | #define ALL_BP_LOCATIONS(B,BP_TMP) \ |
569 | for (BP_TMP = bp_location; \ | |
570 | BP_TMP < bp_location + bp_location_count && (B = *BP_TMP); \ | |
571 | BP_TMP++) | |
7cc221ef | 572 | |
b775012e LM |
573 | /* Iterates through locations with address ADDRESS for the currently selected |
574 | program space. BP_LOCP_TMP points to each object. BP_LOCP_START points | |
575 | to where the loop should start from. | |
576 | If BP_LOCP_START is a NULL pointer, the macro automatically seeks the | |
577 | appropriate location to start with. */ | |
578 | ||
579 | #define ALL_BP_LOCATIONS_AT_ADDR(BP_LOCP_TMP, BP_LOCP_START, ADDRESS) \ | |
580 | for (BP_LOCP_START = BP_LOCP_START == NULL ? get_first_locp_gte_addr (ADDRESS) : BP_LOCP_START, \ | |
581 | BP_LOCP_TMP = BP_LOCP_START; \ | |
582 | BP_LOCP_START \ | |
583 | && (BP_LOCP_TMP < bp_location + bp_location_count \ | |
584 | && (*BP_LOCP_TMP)->address == ADDRESS); \ | |
585 | BP_LOCP_TMP++) | |
586 | ||
1042e4c0 SS |
587 | /* Iterator for tracepoints only. */ |
588 | ||
589 | #define ALL_TRACEPOINTS(B) \ | |
590 | for (B = breakpoint_chain; B; B = B->next) \ | |
d77f58be | 591 | if (is_tracepoint (B)) |
1042e4c0 | 592 | |
7cc221ef | 593 | /* Chains of all breakpoints defined. */ |
c906108c SS |
594 | |
595 | struct breakpoint *breakpoint_chain; | |
596 | ||
876fa593 JK |
597 | /* Array is sorted by bp_location_compare - primarily by the ADDRESS. */ |
598 | ||
599 | static struct bp_location **bp_location; | |
600 | ||
601 | /* Number of elements of BP_LOCATION. */ | |
602 | ||
603 | static unsigned bp_location_count; | |
604 | ||
4a64f543 MS |
605 | /* Maximum alignment offset between bp_target_info.PLACED_ADDRESS and |
606 | ADDRESS for the current elements of BP_LOCATION which get a valid | |
607 | result from bp_location_has_shadow. You can use it for roughly | |
608 | limiting the subrange of BP_LOCATION to scan for shadow bytes for | |
609 | an address you need to read. */ | |
876fa593 JK |
610 | |
611 | static CORE_ADDR bp_location_placed_address_before_address_max; | |
612 | ||
4a64f543 MS |
613 | /* Maximum offset plus alignment between bp_target_info.PLACED_ADDRESS |
614 | + bp_target_info.SHADOW_LEN and ADDRESS for the current elements of | |
615 | BP_LOCATION which get a valid result from bp_location_has_shadow. | |
616 | You can use it for roughly limiting the subrange of BP_LOCATION to | |
617 | scan for shadow bytes for an address you need to read. */ | |
876fa593 JK |
618 | |
619 | static CORE_ADDR bp_location_shadow_len_after_address_max; | |
7cc221ef | 620 | |
4a64f543 MS |
621 | /* The locations that no longer correspond to any breakpoint, unlinked |
622 | from bp_location array, but for which a hit may still be reported | |
623 | by a target. */ | |
20874c92 VP |
624 | VEC(bp_location_p) *moribund_locations = NULL; |
625 | ||
c906108c SS |
626 | /* Number of last breakpoint made. */ |
627 | ||
95a42b64 TT |
628 | static int breakpoint_count; |
629 | ||
86b17b60 PA |
630 | /* The value of `breakpoint_count' before the last command that |
631 | created breakpoints. If the last (break-like) command created more | |
632 | than one breakpoint, then the difference between BREAKPOINT_COUNT | |
633 | and PREV_BREAKPOINT_COUNT is more than one. */ | |
634 | static int prev_breakpoint_count; | |
c906108c | 635 | |
1042e4c0 SS |
636 | /* Number of last tracepoint made. */ |
637 | ||
95a42b64 | 638 | static int tracepoint_count; |
1042e4c0 | 639 | |
6149aea9 PA |
640 | static struct cmd_list_element *breakpoint_set_cmdlist; |
641 | static struct cmd_list_element *breakpoint_show_cmdlist; | |
9291a0cd | 642 | struct cmd_list_element *save_cmdlist; |
6149aea9 | 643 | |
468d015d JJ |
644 | /* Return whether a breakpoint is an active enabled breakpoint. */ |
645 | static int | |
646 | breakpoint_enabled (struct breakpoint *b) | |
647 | { | |
0d381245 | 648 | return (b->enable_state == bp_enabled); |
468d015d JJ |
649 | } |
650 | ||
c906108c SS |
651 | /* Set breakpoint count to NUM. */ |
652 | ||
95a42b64 | 653 | static void |
fba45db2 | 654 | set_breakpoint_count (int num) |
c906108c | 655 | { |
86b17b60 | 656 | prev_breakpoint_count = breakpoint_count; |
c906108c | 657 | breakpoint_count = num; |
4fa62494 | 658 | set_internalvar_integer (lookup_internalvar ("bpnum"), num); |
c906108c SS |
659 | } |
660 | ||
86b17b60 PA |
661 | /* Used by `start_rbreak_breakpoints' below, to record the current |
662 | breakpoint count before "rbreak" creates any breakpoint. */ | |
663 | static int rbreak_start_breakpoint_count; | |
664 | ||
95a42b64 TT |
665 | /* Called at the start an "rbreak" command to record the first |
666 | breakpoint made. */ | |
86b17b60 | 667 | |
95a42b64 TT |
668 | void |
669 | start_rbreak_breakpoints (void) | |
670 | { | |
86b17b60 | 671 | rbreak_start_breakpoint_count = breakpoint_count; |
95a42b64 TT |
672 | } |
673 | ||
674 | /* Called at the end of an "rbreak" command to record the last | |
675 | breakpoint made. */ | |
86b17b60 | 676 | |
95a42b64 TT |
677 | void |
678 | end_rbreak_breakpoints (void) | |
679 | { | |
86b17b60 | 680 | prev_breakpoint_count = rbreak_start_breakpoint_count; |
95a42b64 TT |
681 | } |
682 | ||
4a64f543 | 683 | /* Used in run_command to zero the hit count when a new run starts. */ |
c906108c SS |
684 | |
685 | void | |
fba45db2 | 686 | clear_breakpoint_hit_counts (void) |
c906108c SS |
687 | { |
688 | struct breakpoint *b; | |
689 | ||
690 | ALL_BREAKPOINTS (b) | |
691 | b->hit_count = 0; | |
692 | } | |
693 | ||
9add0f1b TT |
694 | /* Allocate a new counted_command_line with reference count of 1. |
695 | The new structure owns COMMANDS. */ | |
696 | ||
697 | static struct counted_command_line * | |
698 | alloc_counted_command_line (struct command_line *commands) | |
699 | { | |
700 | struct counted_command_line *result | |
701 | = xmalloc (sizeof (struct counted_command_line)); | |
cc59ec59 | 702 | |
9add0f1b TT |
703 | result->refc = 1; |
704 | result->commands = commands; | |
705 | return result; | |
706 | } | |
707 | ||
708 | /* Increment reference count. This does nothing if CMD is NULL. */ | |
709 | ||
710 | static void | |
711 | incref_counted_command_line (struct counted_command_line *cmd) | |
712 | { | |
713 | if (cmd) | |
714 | ++cmd->refc; | |
715 | } | |
716 | ||
717 | /* Decrement reference count. If the reference count reaches 0, | |
718 | destroy the counted_command_line. Sets *CMDP to NULL. This does | |
719 | nothing if *CMDP is NULL. */ | |
720 | ||
721 | static void | |
722 | decref_counted_command_line (struct counted_command_line **cmdp) | |
723 | { | |
724 | if (*cmdp) | |
725 | { | |
726 | if (--(*cmdp)->refc == 0) | |
727 | { | |
728 | free_command_lines (&(*cmdp)->commands); | |
729 | xfree (*cmdp); | |
730 | } | |
731 | *cmdp = NULL; | |
732 | } | |
733 | } | |
734 | ||
735 | /* A cleanup function that calls decref_counted_command_line. */ | |
736 | ||
737 | static void | |
738 | do_cleanup_counted_command_line (void *arg) | |
739 | { | |
740 | decref_counted_command_line (arg); | |
741 | } | |
742 | ||
743 | /* Create a cleanup that calls decref_counted_command_line on the | |
744 | argument. */ | |
745 | ||
746 | static struct cleanup * | |
747 | make_cleanup_decref_counted_command_line (struct counted_command_line **cmdp) | |
748 | { | |
749 | return make_cleanup (do_cleanup_counted_command_line, cmdp); | |
750 | } | |
751 | ||
c906108c | 752 | \f |
48cb2d85 VP |
753 | /* Return the breakpoint with the specified number, or NULL |
754 | if the number does not refer to an existing breakpoint. */ | |
755 | ||
756 | struct breakpoint * | |
757 | get_breakpoint (int num) | |
758 | { | |
759 | struct breakpoint *b; | |
760 | ||
761 | ALL_BREAKPOINTS (b) | |
762 | if (b->number == num) | |
763 | return b; | |
764 | ||
765 | return NULL; | |
766 | } | |
5c44784c | 767 | |
c906108c | 768 | \f |
adc36818 | 769 | |
b775012e LM |
770 | /* Mark locations as "conditions have changed" in case the target supports |
771 | evaluating conditions on its side. */ | |
772 | ||
773 | static void | |
774 | mark_breakpoint_modified (struct breakpoint *b) | |
775 | { | |
776 | struct bp_location *loc; | |
777 | ||
778 | /* This is only meaningful if the target is | |
779 | evaluating conditions and if the user has | |
780 | opted for condition evaluation on the target's | |
781 | side. */ | |
782 | if (gdb_evaluates_breakpoint_condition_p () | |
783 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
784 | return; | |
785 | ||
786 | if (!is_breakpoint (b)) | |
787 | return; | |
788 | ||
789 | for (loc = b->loc; loc; loc = loc->next) | |
790 | loc->condition_changed = condition_modified; | |
791 | } | |
792 | ||
793 | /* Mark location as "conditions have changed" in case the target supports | |
794 | evaluating conditions on its side. */ | |
795 | ||
796 | static void | |
797 | mark_breakpoint_location_modified (struct bp_location *loc) | |
798 | { | |
799 | /* This is only meaningful if the target is | |
800 | evaluating conditions and if the user has | |
801 | opted for condition evaluation on the target's | |
802 | side. */ | |
803 | if (gdb_evaluates_breakpoint_condition_p () | |
804 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
805 | ||
806 | return; | |
807 | ||
808 | if (!is_breakpoint (loc->owner)) | |
809 | return; | |
810 | ||
811 | loc->condition_changed = condition_modified; | |
812 | } | |
813 | ||
814 | /* Sets the condition-evaluation mode using the static global | |
815 | condition_evaluation_mode. */ | |
816 | ||
817 | static void | |
818 | set_condition_evaluation_mode (char *args, int from_tty, | |
819 | struct cmd_list_element *c) | |
820 | { | |
b775012e LM |
821 | const char *old_mode, *new_mode; |
822 | ||
823 | if ((condition_evaluation_mode_1 == condition_evaluation_target) | |
824 | && !target_supports_evaluation_of_breakpoint_conditions ()) | |
825 | { | |
826 | condition_evaluation_mode_1 = condition_evaluation_mode; | |
827 | warning (_("Target does not support breakpoint condition evaluation.\n" | |
828 | "Using host evaluation mode instead.")); | |
829 | return; | |
830 | } | |
831 | ||
832 | new_mode = translate_condition_evaluation_mode (condition_evaluation_mode_1); | |
833 | old_mode = translate_condition_evaluation_mode (condition_evaluation_mode); | |
834 | ||
abf1152a JK |
835 | /* Flip the switch. Flip it even if OLD_MODE == NEW_MODE as one of the |
836 | settings was "auto". */ | |
837 | condition_evaluation_mode = condition_evaluation_mode_1; | |
838 | ||
b775012e LM |
839 | /* Only update the mode if the user picked a different one. */ |
840 | if (new_mode != old_mode) | |
841 | { | |
842 | struct bp_location *loc, **loc_tmp; | |
843 | /* If the user switched to a different evaluation mode, we | |
844 | need to synch the changes with the target as follows: | |
845 | ||
846 | "host" -> "target": Send all (valid) conditions to the target. | |
847 | "target" -> "host": Remove all the conditions from the target. | |
848 | */ | |
849 | ||
b775012e LM |
850 | if (new_mode == condition_evaluation_target) |
851 | { | |
852 | /* Mark everything modified and synch conditions with the | |
853 | target. */ | |
854 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
855 | mark_breakpoint_location_modified (loc); | |
856 | } | |
857 | else | |
858 | { | |
859 | /* Manually mark non-duplicate locations to synch conditions | |
860 | with the target. We do this to remove all the conditions the | |
861 | target knows about. */ | |
862 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
863 | if (is_breakpoint (loc->owner) && loc->inserted) | |
864 | loc->needs_update = 1; | |
865 | } | |
866 | ||
867 | /* Do the update. */ | |
44702360 | 868 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e LM |
869 | } |
870 | ||
871 | return; | |
872 | } | |
873 | ||
874 | /* Shows the current mode of breakpoint condition evaluation. Explicitly shows | |
875 | what "auto" is translating to. */ | |
876 | ||
877 | static void | |
878 | show_condition_evaluation_mode (struct ui_file *file, int from_tty, | |
879 | struct cmd_list_element *c, const char *value) | |
880 | { | |
881 | if (condition_evaluation_mode == condition_evaluation_auto) | |
882 | fprintf_filtered (file, | |
883 | _("Breakpoint condition evaluation " | |
884 | "mode is %s (currently %s).\n"), | |
885 | value, | |
886 | breakpoint_condition_evaluation_mode ()); | |
887 | else | |
888 | fprintf_filtered (file, _("Breakpoint condition evaluation mode is %s.\n"), | |
889 | value); | |
890 | } | |
891 | ||
892 | /* A comparison function for bp_location AP and BP that is used by | |
893 | bsearch. This comparison function only cares about addresses, unlike | |
894 | the more general bp_location_compare function. */ | |
895 | ||
896 | static int | |
897 | bp_location_compare_addrs (const void *ap, const void *bp) | |
898 | { | |
899 | struct bp_location *a = *(void **) ap; | |
900 | struct bp_location *b = *(void **) bp; | |
901 | ||
902 | if (a->address == b->address) | |
903 | return 0; | |
904 | else | |
905 | return ((a->address > b->address) - (a->address < b->address)); | |
906 | } | |
907 | ||
908 | /* Helper function to skip all bp_locations with addresses | |
909 | less than ADDRESS. It returns the first bp_location that | |
910 | is greater than or equal to ADDRESS. If none is found, just | |
911 | return NULL. */ | |
912 | ||
913 | static struct bp_location ** | |
914 | get_first_locp_gte_addr (CORE_ADDR address) | |
915 | { | |
916 | struct bp_location dummy_loc; | |
917 | struct bp_location *dummy_locp = &dummy_loc; | |
918 | struct bp_location **locp_found = NULL; | |
919 | ||
920 | /* Initialize the dummy location's address field. */ | |
921 | memset (&dummy_loc, 0, sizeof (struct bp_location)); | |
922 | dummy_loc.address = address; | |
923 | ||
924 | /* Find a close match to the first location at ADDRESS. */ | |
925 | locp_found = bsearch (&dummy_locp, bp_location, bp_location_count, | |
926 | sizeof (struct bp_location **), | |
927 | bp_location_compare_addrs); | |
928 | ||
929 | /* Nothing was found, nothing left to do. */ | |
930 | if (locp_found == NULL) | |
931 | return NULL; | |
932 | ||
933 | /* We may have found a location that is at ADDRESS but is not the first in the | |
934 | location's list. Go backwards (if possible) and locate the first one. */ | |
935 | while ((locp_found - 1) >= bp_location | |
936 | && (*(locp_found - 1))->address == address) | |
937 | locp_found--; | |
938 | ||
939 | return locp_found; | |
940 | } | |
941 | ||
adc36818 PM |
942 | void |
943 | set_breakpoint_condition (struct breakpoint *b, char *exp, | |
944 | int from_tty) | |
945 | { | |
3a5c3e22 PA |
946 | xfree (b->cond_string); |
947 | b->cond_string = NULL; | |
adc36818 | 948 | |
3a5c3e22 | 949 | if (is_watchpoint (b)) |
adc36818 | 950 | { |
3a5c3e22 PA |
951 | struct watchpoint *w = (struct watchpoint *) b; |
952 | ||
953 | xfree (w->cond_exp); | |
954 | w->cond_exp = NULL; | |
955 | } | |
956 | else | |
957 | { | |
958 | struct bp_location *loc; | |
959 | ||
960 | for (loc = b->loc; loc; loc = loc->next) | |
961 | { | |
962 | xfree (loc->cond); | |
963 | loc->cond = NULL; | |
b775012e LM |
964 | |
965 | /* No need to free the condition agent expression | |
966 | bytecode (if we have one). We will handle this | |
967 | when we go through update_global_location_list. */ | |
3a5c3e22 | 968 | } |
adc36818 | 969 | } |
adc36818 PM |
970 | |
971 | if (*exp == 0) | |
972 | { | |
973 | if (from_tty) | |
974 | printf_filtered (_("Breakpoint %d now unconditional.\n"), b->number); | |
975 | } | |
976 | else | |
977 | { | |
bbc13ae3 | 978 | const char *arg = exp; |
cc59ec59 | 979 | |
adc36818 PM |
980 | /* I don't know if it matters whether this is the string the user |
981 | typed in or the decompiled expression. */ | |
982 | b->cond_string = xstrdup (arg); | |
983 | b->condition_not_parsed = 0; | |
984 | ||
985 | if (is_watchpoint (b)) | |
986 | { | |
3a5c3e22 PA |
987 | struct watchpoint *w = (struct watchpoint *) b; |
988 | ||
adc36818 PM |
989 | innermost_block = NULL; |
990 | arg = exp; | |
1bb9788d | 991 | w->cond_exp = parse_exp_1 (&arg, 0, 0, 0); |
adc36818 PM |
992 | if (*arg) |
993 | error (_("Junk at end of expression")); | |
3a5c3e22 | 994 | w->cond_exp_valid_block = innermost_block; |
adc36818 PM |
995 | } |
996 | else | |
997 | { | |
3a5c3e22 PA |
998 | struct bp_location *loc; |
999 | ||
adc36818 PM |
1000 | for (loc = b->loc; loc; loc = loc->next) |
1001 | { | |
1002 | arg = exp; | |
1003 | loc->cond = | |
1bb9788d TT |
1004 | parse_exp_1 (&arg, loc->address, |
1005 | block_for_pc (loc->address), 0); | |
adc36818 PM |
1006 | if (*arg) |
1007 | error (_("Junk at end of expression")); | |
1008 | } | |
1009 | } | |
1010 | } | |
b775012e LM |
1011 | mark_breakpoint_modified (b); |
1012 | ||
8d3788bd | 1013 | observer_notify_breakpoint_modified (b); |
adc36818 PM |
1014 | } |
1015 | ||
d55637df TT |
1016 | /* Completion for the "condition" command. */ |
1017 | ||
1018 | static VEC (char_ptr) * | |
6f937416 PA |
1019 | condition_completer (struct cmd_list_element *cmd, |
1020 | const char *text, const char *word) | |
d55637df | 1021 | { |
6f937416 | 1022 | const char *space; |
d55637df | 1023 | |
6f937416 PA |
1024 | text = skip_spaces_const (text); |
1025 | space = skip_to_space_const (text); | |
d55637df TT |
1026 | if (*space == '\0') |
1027 | { | |
1028 | int len; | |
1029 | struct breakpoint *b; | |
1030 | VEC (char_ptr) *result = NULL; | |
1031 | ||
1032 | if (text[0] == '$') | |
1033 | { | |
1034 | /* We don't support completion of history indices. */ | |
1035 | if (isdigit (text[1])) | |
1036 | return NULL; | |
1037 | return complete_internalvar (&text[1]); | |
1038 | } | |
1039 | ||
1040 | /* We're completing the breakpoint number. */ | |
1041 | len = strlen (text); | |
1042 | ||
1043 | ALL_BREAKPOINTS (b) | |
58ce7251 SDJ |
1044 | { |
1045 | char number[50]; | |
1046 | ||
1047 | xsnprintf (number, sizeof (number), "%d", b->number); | |
1048 | ||
1049 | if (strncmp (number, text, len) == 0) | |
1050 | VEC_safe_push (char_ptr, result, xstrdup (number)); | |
1051 | } | |
d55637df TT |
1052 | |
1053 | return result; | |
1054 | } | |
1055 | ||
1056 | /* We're completing the expression part. */ | |
6f937416 | 1057 | text = skip_spaces_const (space); |
d55637df TT |
1058 | return expression_completer (cmd, text, word); |
1059 | } | |
1060 | ||
c906108c SS |
1061 | /* condition N EXP -- set break condition of breakpoint N to EXP. */ |
1062 | ||
1063 | static void | |
fba45db2 | 1064 | condition_command (char *arg, int from_tty) |
c906108c | 1065 | { |
52f0bd74 | 1066 | struct breakpoint *b; |
c906108c | 1067 | char *p; |
52f0bd74 | 1068 | int bnum; |
c906108c SS |
1069 | |
1070 | if (arg == 0) | |
e2e0b3e5 | 1071 | error_no_arg (_("breakpoint number")); |
c906108c SS |
1072 | |
1073 | p = arg; | |
1074 | bnum = get_number (&p); | |
5c44784c | 1075 | if (bnum == 0) |
8a3fe4f8 | 1076 | error (_("Bad breakpoint argument: '%s'"), arg); |
c906108c SS |
1077 | |
1078 | ALL_BREAKPOINTS (b) | |
1079 | if (b->number == bnum) | |
2f069f6f | 1080 | { |
6dddc817 DE |
1081 | /* Check if this breakpoint has a "stop" method implemented in an |
1082 | extension language. This method and conditions entered into GDB | |
1083 | from the CLI are mutually exclusive. */ | |
1084 | const struct extension_language_defn *extlang | |
1085 | = get_breakpoint_cond_ext_lang (b, EXT_LANG_NONE); | |
1086 | ||
1087 | if (extlang != NULL) | |
1088 | { | |
1089 | error (_("Only one stop condition allowed. There is currently" | |
1090 | " a %s stop condition defined for this breakpoint."), | |
1091 | ext_lang_capitalized_name (extlang)); | |
1092 | } | |
2566ad2d | 1093 | set_breakpoint_condition (b, p, from_tty); |
b775012e LM |
1094 | |
1095 | if (is_breakpoint (b)) | |
44702360 | 1096 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e | 1097 | |
2f069f6f JB |
1098 | return; |
1099 | } | |
c906108c | 1100 | |
8a3fe4f8 | 1101 | error (_("No breakpoint number %d."), bnum); |
c906108c SS |
1102 | } |
1103 | ||
a7bdde9e VP |
1104 | /* Check that COMMAND do not contain commands that are suitable |
1105 | only for tracepoints and not suitable for ordinary breakpoints. | |
4a64f543 MS |
1106 | Throw if any such commands is found. */ |
1107 | ||
a7bdde9e VP |
1108 | static void |
1109 | check_no_tracepoint_commands (struct command_line *commands) | |
1110 | { | |
1111 | struct command_line *c; | |
cc59ec59 | 1112 | |
a7bdde9e VP |
1113 | for (c = commands; c; c = c->next) |
1114 | { | |
1115 | int i; | |
1116 | ||
1117 | if (c->control_type == while_stepping_control) | |
3e43a32a MS |
1118 | error (_("The 'while-stepping' command can " |
1119 | "only be used for tracepoints")); | |
a7bdde9e VP |
1120 | |
1121 | for (i = 0; i < c->body_count; ++i) | |
1122 | check_no_tracepoint_commands ((c->body_list)[i]); | |
1123 | ||
1124 | /* Not that command parsing removes leading whitespace and comment | |
4a64f543 | 1125 | lines and also empty lines. So, we only need to check for |
a7bdde9e VP |
1126 | command directly. */ |
1127 | if (strstr (c->line, "collect ") == c->line) | |
1128 | error (_("The 'collect' command can only be used for tracepoints")); | |
1129 | ||
51661e93 VP |
1130 | if (strstr (c->line, "teval ") == c->line) |
1131 | error (_("The 'teval' command can only be used for tracepoints")); | |
a7bdde9e VP |
1132 | } |
1133 | } | |
1134 | ||
d77f58be SS |
1135 | /* Encapsulate tests for different types of tracepoints. */ |
1136 | ||
d9b3f62e PA |
1137 | static int |
1138 | is_tracepoint_type (enum bptype type) | |
1139 | { | |
1140 | return (type == bp_tracepoint | |
1141 | || type == bp_fast_tracepoint | |
1142 | || type == bp_static_tracepoint); | |
1143 | } | |
1144 | ||
a7bdde9e | 1145 | int |
d77f58be | 1146 | is_tracepoint (const struct breakpoint *b) |
a7bdde9e | 1147 | { |
d9b3f62e | 1148 | return is_tracepoint_type (b->type); |
a7bdde9e | 1149 | } |
d9b3f62e | 1150 | |
e5dd4106 | 1151 | /* A helper function that validates that COMMANDS are valid for a |
95a42b64 TT |
1152 | breakpoint. This function will throw an exception if a problem is |
1153 | found. */ | |
48cb2d85 | 1154 | |
95a42b64 TT |
1155 | static void |
1156 | validate_commands_for_breakpoint (struct breakpoint *b, | |
1157 | struct command_line *commands) | |
48cb2d85 | 1158 | { |
d77f58be | 1159 | if (is_tracepoint (b)) |
a7bdde9e | 1160 | { |
c9a6ce02 | 1161 | struct tracepoint *t = (struct tracepoint *) b; |
a7bdde9e VP |
1162 | struct command_line *c; |
1163 | struct command_line *while_stepping = 0; | |
c9a6ce02 PA |
1164 | |
1165 | /* Reset the while-stepping step count. The previous commands | |
1166 | might have included a while-stepping action, while the new | |
1167 | ones might not. */ | |
1168 | t->step_count = 0; | |
1169 | ||
1170 | /* We need to verify that each top-level element of commands is | |
1171 | valid for tracepoints, that there's at most one | |
1172 | while-stepping element, and that the while-stepping's body | |
1173 | has valid tracing commands excluding nested while-stepping. | |
1174 | We also need to validate the tracepoint action line in the | |
1175 | context of the tracepoint --- validate_actionline actually | |
1176 | has side effects, like setting the tracepoint's | |
1177 | while-stepping STEP_COUNT, in addition to checking if the | |
1178 | collect/teval actions parse and make sense in the | |
1179 | tracepoint's context. */ | |
a7bdde9e VP |
1180 | for (c = commands; c; c = c->next) |
1181 | { | |
a7bdde9e VP |
1182 | if (c->control_type == while_stepping_control) |
1183 | { | |
1184 | if (b->type == bp_fast_tracepoint) | |
3e43a32a MS |
1185 | error (_("The 'while-stepping' command " |
1186 | "cannot be used for fast tracepoint")); | |
0fb4aa4b | 1187 | else if (b->type == bp_static_tracepoint) |
3e43a32a MS |
1188 | error (_("The 'while-stepping' command " |
1189 | "cannot be used for static tracepoint")); | |
a7bdde9e VP |
1190 | |
1191 | if (while_stepping) | |
3e43a32a MS |
1192 | error (_("The 'while-stepping' command " |
1193 | "can be used only once")); | |
a7bdde9e VP |
1194 | else |
1195 | while_stepping = c; | |
1196 | } | |
c9a6ce02 PA |
1197 | |
1198 | validate_actionline (c->line, b); | |
a7bdde9e VP |
1199 | } |
1200 | if (while_stepping) | |
1201 | { | |
1202 | struct command_line *c2; | |
1203 | ||
1204 | gdb_assert (while_stepping->body_count == 1); | |
1205 | c2 = while_stepping->body_list[0]; | |
1206 | for (; c2; c2 = c2->next) | |
1207 | { | |
a7bdde9e VP |
1208 | if (c2->control_type == while_stepping_control) |
1209 | error (_("The 'while-stepping' command cannot be nested")); | |
1210 | } | |
1211 | } | |
1212 | } | |
1213 | else | |
1214 | { | |
1215 | check_no_tracepoint_commands (commands); | |
1216 | } | |
95a42b64 TT |
1217 | } |
1218 | ||
0fb4aa4b PA |
1219 | /* Return a vector of all the static tracepoints set at ADDR. The |
1220 | caller is responsible for releasing the vector. */ | |
1221 | ||
1222 | VEC(breakpoint_p) * | |
1223 | static_tracepoints_here (CORE_ADDR addr) | |
1224 | { | |
1225 | struct breakpoint *b; | |
1226 | VEC(breakpoint_p) *found = 0; | |
1227 | struct bp_location *loc; | |
1228 | ||
1229 | ALL_BREAKPOINTS (b) | |
1230 | if (b->type == bp_static_tracepoint) | |
1231 | { | |
1232 | for (loc = b->loc; loc; loc = loc->next) | |
1233 | if (loc->address == addr) | |
1234 | VEC_safe_push(breakpoint_p, found, b); | |
1235 | } | |
1236 | ||
1237 | return found; | |
1238 | } | |
1239 | ||
95a42b64 | 1240 | /* Set the command list of B to COMMANDS. If breakpoint is tracepoint, |
4a64f543 | 1241 | validate that only allowed commands are included. */ |
95a42b64 TT |
1242 | |
1243 | void | |
4a64f543 MS |
1244 | breakpoint_set_commands (struct breakpoint *b, |
1245 | struct command_line *commands) | |
95a42b64 TT |
1246 | { |
1247 | validate_commands_for_breakpoint (b, commands); | |
a7bdde9e | 1248 | |
9add0f1b TT |
1249 | decref_counted_command_line (&b->commands); |
1250 | b->commands = alloc_counted_command_line (commands); | |
8d3788bd | 1251 | observer_notify_breakpoint_modified (b); |
48cb2d85 VP |
1252 | } |
1253 | ||
45a43567 TT |
1254 | /* Set the internal `silent' flag on the breakpoint. Note that this |
1255 | is not the same as the "silent" that may appear in the breakpoint's | |
1256 | commands. */ | |
1257 | ||
1258 | void | |
1259 | breakpoint_set_silent (struct breakpoint *b, int silent) | |
1260 | { | |
1261 | int old_silent = b->silent; | |
1262 | ||
1263 | b->silent = silent; | |
1264 | if (old_silent != silent) | |
8d3788bd | 1265 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1266 | } |
1267 | ||
1268 | /* Set the thread for this breakpoint. If THREAD is -1, make the | |
1269 | breakpoint work for any thread. */ | |
1270 | ||
1271 | void | |
1272 | breakpoint_set_thread (struct breakpoint *b, int thread) | |
1273 | { | |
1274 | int old_thread = b->thread; | |
1275 | ||
1276 | b->thread = thread; | |
1277 | if (old_thread != thread) | |
8d3788bd | 1278 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1279 | } |
1280 | ||
1281 | /* Set the task for this breakpoint. If TASK is 0, make the | |
1282 | breakpoint work for any task. */ | |
1283 | ||
1284 | void | |
1285 | breakpoint_set_task (struct breakpoint *b, int task) | |
1286 | { | |
1287 | int old_task = b->task; | |
1288 | ||
1289 | b->task = task; | |
1290 | if (old_task != task) | |
8d3788bd | 1291 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1292 | } |
1293 | ||
95a42b64 TT |
1294 | void |
1295 | check_tracepoint_command (char *line, void *closure) | |
a7bdde9e VP |
1296 | { |
1297 | struct breakpoint *b = closure; | |
cc59ec59 | 1298 | |
6f937416 | 1299 | validate_actionline (line, b); |
a7bdde9e VP |
1300 | } |
1301 | ||
95a42b64 TT |
1302 | /* A structure used to pass information through |
1303 | map_breakpoint_numbers. */ | |
1304 | ||
1305 | struct commands_info | |
1306 | { | |
1307 | /* True if the command was typed at a tty. */ | |
1308 | int from_tty; | |
86b17b60 PA |
1309 | |
1310 | /* The breakpoint range spec. */ | |
1311 | char *arg; | |
1312 | ||
95a42b64 TT |
1313 | /* Non-NULL if the body of the commands are being read from this |
1314 | already-parsed command. */ | |
1315 | struct command_line *control; | |
86b17b60 | 1316 | |
95a42b64 TT |
1317 | /* The command lines read from the user, or NULL if they have not |
1318 | yet been read. */ | |
1319 | struct counted_command_line *cmd; | |
1320 | }; | |
1321 | ||
1322 | /* A callback for map_breakpoint_numbers that sets the commands for | |
1323 | commands_command. */ | |
1324 | ||
c906108c | 1325 | static void |
95a42b64 | 1326 | do_map_commands_command (struct breakpoint *b, void *data) |
c906108c | 1327 | { |
95a42b64 | 1328 | struct commands_info *info = data; |
c906108c | 1329 | |
95a42b64 TT |
1330 | if (info->cmd == NULL) |
1331 | { | |
1332 | struct command_line *l; | |
5c44784c | 1333 | |
95a42b64 TT |
1334 | if (info->control != NULL) |
1335 | l = copy_command_lines (info->control->body_list[0]); | |
1336 | else | |
86b17b60 PA |
1337 | { |
1338 | struct cleanup *old_chain; | |
1339 | char *str; | |
c5aa993b | 1340 | |
3e43a32a MS |
1341 | str = xstrprintf (_("Type commands for breakpoint(s) " |
1342 | "%s, one per line."), | |
86b17b60 PA |
1343 | info->arg); |
1344 | ||
1345 | old_chain = make_cleanup (xfree, str); | |
1346 | ||
1347 | l = read_command_lines (str, | |
1348 | info->from_tty, 1, | |
d77f58be | 1349 | (is_tracepoint (b) |
86b17b60 PA |
1350 | ? check_tracepoint_command : 0), |
1351 | b); | |
1352 | ||
1353 | do_cleanups (old_chain); | |
1354 | } | |
a7bdde9e | 1355 | |
95a42b64 TT |
1356 | info->cmd = alloc_counted_command_line (l); |
1357 | } | |
1358 | ||
1359 | /* If a breakpoint was on the list more than once, we don't need to | |
1360 | do anything. */ | |
1361 | if (b->commands != info->cmd) | |
1362 | { | |
1363 | validate_commands_for_breakpoint (b, info->cmd->commands); | |
1364 | incref_counted_command_line (info->cmd); | |
1365 | decref_counted_command_line (&b->commands); | |
1366 | b->commands = info->cmd; | |
8d3788bd | 1367 | observer_notify_breakpoint_modified (b); |
c5aa993b | 1368 | } |
95a42b64 TT |
1369 | } |
1370 | ||
1371 | static void | |
4a64f543 MS |
1372 | commands_command_1 (char *arg, int from_tty, |
1373 | struct command_line *control) | |
95a42b64 TT |
1374 | { |
1375 | struct cleanup *cleanups; | |
1376 | struct commands_info info; | |
1377 | ||
1378 | info.from_tty = from_tty; | |
1379 | info.control = control; | |
1380 | info.cmd = NULL; | |
1381 | /* If we read command lines from the user, then `info' will hold an | |
1382 | extra reference to the commands that we must clean up. */ | |
1383 | cleanups = make_cleanup_decref_counted_command_line (&info.cmd); | |
1384 | ||
1385 | if (arg == NULL || !*arg) | |
1386 | { | |
86b17b60 | 1387 | if (breakpoint_count - prev_breakpoint_count > 1) |
4a64f543 MS |
1388 | arg = xstrprintf ("%d-%d", prev_breakpoint_count + 1, |
1389 | breakpoint_count); | |
95a42b64 TT |
1390 | else if (breakpoint_count > 0) |
1391 | arg = xstrprintf ("%d", breakpoint_count); | |
86b17b60 PA |
1392 | else |
1393 | { | |
1394 | /* So that we don't try to free the incoming non-NULL | |
1395 | argument in the cleanup below. Mapping breakpoint | |
1396 | numbers will fail in this case. */ | |
1397 | arg = NULL; | |
1398 | } | |
95a42b64 | 1399 | } |
9766ced4 SS |
1400 | else |
1401 | /* The command loop has some static state, so we need to preserve | |
1402 | our argument. */ | |
1403 | arg = xstrdup (arg); | |
86b17b60 PA |
1404 | |
1405 | if (arg != NULL) | |
1406 | make_cleanup (xfree, arg); | |
1407 | ||
1408 | info.arg = arg; | |
95a42b64 TT |
1409 | |
1410 | map_breakpoint_numbers (arg, do_map_commands_command, &info); | |
1411 | ||
1412 | if (info.cmd == NULL) | |
1413 | error (_("No breakpoints specified.")); | |
1414 | ||
1415 | do_cleanups (cleanups); | |
1416 | } | |
1417 | ||
1418 | static void | |
1419 | commands_command (char *arg, int from_tty) | |
1420 | { | |
1421 | commands_command_1 (arg, from_tty, NULL); | |
c906108c | 1422 | } |
40c03ae8 EZ |
1423 | |
1424 | /* Like commands_command, but instead of reading the commands from | |
1425 | input stream, takes them from an already parsed command structure. | |
1426 | ||
1427 | This is used by cli-script.c to DTRT with breakpoint commands | |
1428 | that are part of if and while bodies. */ | |
1429 | enum command_control_type | |
1430 | commands_from_control_command (char *arg, struct command_line *cmd) | |
1431 | { | |
95a42b64 TT |
1432 | commands_command_1 (arg, 0, cmd); |
1433 | return simple_control; | |
40c03ae8 | 1434 | } |
876fa593 JK |
1435 | |
1436 | /* Return non-zero if BL->TARGET_INFO contains valid information. */ | |
1437 | ||
1438 | static int | |
1439 | bp_location_has_shadow (struct bp_location *bl) | |
1440 | { | |
1441 | if (bl->loc_type != bp_loc_software_breakpoint) | |
1442 | return 0; | |
1443 | if (!bl->inserted) | |
1444 | return 0; | |
1445 | if (bl->target_info.shadow_len == 0) | |
e5dd4106 | 1446 | /* BL isn't valid, or doesn't shadow memory. */ |
876fa593 JK |
1447 | return 0; |
1448 | return 1; | |
1449 | } | |
1450 | ||
9d497a19 PA |
1451 | /* Update BUF, which is LEN bytes read from the target address |
1452 | MEMADDR, by replacing a memory breakpoint with its shadowed | |
1453 | contents. | |
1454 | ||
1455 | If READBUF is not NULL, this buffer must not overlap with the of | |
1456 | the breakpoint location's shadow_contents buffer. Otherwise, a | |
1457 | failed assertion internal error will be raised. */ | |
1458 | ||
1459 | static void | |
1460 | one_breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, | |
1461 | const gdb_byte *writebuf_org, | |
1462 | ULONGEST memaddr, LONGEST len, | |
1463 | struct bp_target_info *target_info, | |
1464 | struct gdbarch *gdbarch) | |
1465 | { | |
1466 | /* Now do full processing of the found relevant range of elements. */ | |
1467 | CORE_ADDR bp_addr = 0; | |
1468 | int bp_size = 0; | |
1469 | int bptoffset = 0; | |
1470 | ||
1471 | if (!breakpoint_address_match (target_info->placed_address_space, 0, | |
1472 | current_program_space->aspace, 0)) | |
1473 | { | |
1474 | /* The breakpoint is inserted in a different address space. */ | |
1475 | return; | |
1476 | } | |
1477 | ||
1478 | /* Addresses and length of the part of the breakpoint that | |
1479 | we need to copy. */ | |
1480 | bp_addr = target_info->placed_address; | |
1481 | bp_size = target_info->shadow_len; | |
1482 | ||
1483 | if (bp_addr + bp_size <= memaddr) | |
1484 | { | |
1485 | /* The breakpoint is entirely before the chunk of memory we are | |
1486 | reading. */ | |
1487 | return; | |
1488 | } | |
1489 | ||
1490 | if (bp_addr >= memaddr + len) | |
1491 | { | |
1492 | /* The breakpoint is entirely after the chunk of memory we are | |
1493 | reading. */ | |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | /* Offset within shadow_contents. */ | |
1498 | if (bp_addr < memaddr) | |
1499 | { | |
1500 | /* Only copy the second part of the breakpoint. */ | |
1501 | bp_size -= memaddr - bp_addr; | |
1502 | bptoffset = memaddr - bp_addr; | |
1503 | bp_addr = memaddr; | |
1504 | } | |
1505 | ||
1506 | if (bp_addr + bp_size > memaddr + len) | |
1507 | { | |
1508 | /* Only copy the first part of the breakpoint. */ | |
1509 | bp_size -= (bp_addr + bp_size) - (memaddr + len); | |
1510 | } | |
1511 | ||
1512 | if (readbuf != NULL) | |
1513 | { | |
1514 | /* Verify that the readbuf buffer does not overlap with the | |
1515 | shadow_contents buffer. */ | |
1516 | gdb_assert (target_info->shadow_contents >= readbuf + len | |
1517 | || readbuf >= (target_info->shadow_contents | |
1518 | + target_info->shadow_len)); | |
1519 | ||
1520 | /* Update the read buffer with this inserted breakpoint's | |
1521 | shadow. */ | |
1522 | memcpy (readbuf + bp_addr - memaddr, | |
1523 | target_info->shadow_contents + bptoffset, bp_size); | |
1524 | } | |
1525 | else | |
1526 | { | |
1527 | const unsigned char *bp; | |
1528 | CORE_ADDR placed_address = target_info->placed_address; | |
1529 | int placed_size = target_info->placed_size; | |
1530 | ||
1531 | /* Update the shadow with what we want to write to memory. */ | |
1532 | memcpy (target_info->shadow_contents + bptoffset, | |
1533 | writebuf_org + bp_addr - memaddr, bp_size); | |
1534 | ||
1535 | /* Determine appropriate breakpoint contents and size for this | |
1536 | address. */ | |
1537 | bp = gdbarch_breakpoint_from_pc (gdbarch, &placed_address, &placed_size); | |
1538 | ||
1539 | /* Update the final write buffer with this inserted | |
1540 | breakpoint's INSN. */ | |
1541 | memcpy (writebuf + bp_addr - memaddr, bp + bptoffset, bp_size); | |
1542 | } | |
1543 | } | |
1544 | ||
8defab1a | 1545 | /* Update BUF, which is LEN bytes read from the target address MEMADDR, |
876fa593 JK |
1546 | by replacing any memory breakpoints with their shadowed contents. |
1547 | ||
35c63cd8 JB |
1548 | If READBUF is not NULL, this buffer must not overlap with any of |
1549 | the breakpoint location's shadow_contents buffers. Otherwise, | |
1550 | a failed assertion internal error will be raised. | |
1551 | ||
876fa593 | 1552 | The range of shadowed area by each bp_location is: |
35df4500 TJB |
1553 | bl->address - bp_location_placed_address_before_address_max |
1554 | up to bl->address + bp_location_shadow_len_after_address_max | |
876fa593 JK |
1555 | The range we were requested to resolve shadows for is: |
1556 | memaddr ... memaddr + len | |
1557 | Thus the safe cutoff boundaries for performance optimization are | |
35df4500 TJB |
1558 | memaddr + len <= (bl->address |
1559 | - bp_location_placed_address_before_address_max) | |
876fa593 | 1560 | and: |
35df4500 | 1561 | bl->address + bp_location_shadow_len_after_address_max <= memaddr */ |
c906108c | 1562 | |
8defab1a | 1563 | void |
f0ba3972 PA |
1564 | breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, |
1565 | const gdb_byte *writebuf_org, | |
1566 | ULONGEST memaddr, LONGEST len) | |
c906108c | 1567 | { |
4a64f543 MS |
1568 | /* Left boundary, right boundary and median element of our binary |
1569 | search. */ | |
876fa593 | 1570 | unsigned bc_l, bc_r, bc; |
9d497a19 | 1571 | size_t i; |
876fa593 | 1572 | |
4a64f543 MS |
1573 | /* Find BC_L which is a leftmost element which may affect BUF |
1574 | content. It is safe to report lower value but a failure to | |
1575 | report higher one. */ | |
876fa593 JK |
1576 | |
1577 | bc_l = 0; | |
1578 | bc_r = bp_location_count; | |
1579 | while (bc_l + 1 < bc_r) | |
1580 | { | |
35df4500 | 1581 | struct bp_location *bl; |
876fa593 JK |
1582 | |
1583 | bc = (bc_l + bc_r) / 2; | |
35df4500 | 1584 | bl = bp_location[bc]; |
876fa593 | 1585 | |
4a64f543 MS |
1586 | /* Check first BL->ADDRESS will not overflow due to the added |
1587 | constant. Then advance the left boundary only if we are sure | |
1588 | the BC element can in no way affect the BUF content (MEMADDR | |
1589 | to MEMADDR + LEN range). | |
876fa593 | 1590 | |
4a64f543 MS |
1591 | Use the BP_LOCATION_SHADOW_LEN_AFTER_ADDRESS_MAX safety |
1592 | offset so that we cannot miss a breakpoint with its shadow | |
1593 | range tail still reaching MEMADDR. */ | |
c5aa993b | 1594 | |
35df4500 TJB |
1595 | if ((bl->address + bp_location_shadow_len_after_address_max |
1596 | >= bl->address) | |
1597 | && (bl->address + bp_location_shadow_len_after_address_max | |
1598 | <= memaddr)) | |
876fa593 JK |
1599 | bc_l = bc; |
1600 | else | |
1601 | bc_r = bc; | |
1602 | } | |
1603 | ||
128070bb PA |
1604 | /* Due to the binary search above, we need to make sure we pick the |
1605 | first location that's at BC_L's address. E.g., if there are | |
1606 | multiple locations at the same address, BC_L may end up pointing | |
1607 | at a duplicate location, and miss the "master"/"inserted" | |
1608 | location. Say, given locations L1, L2 and L3 at addresses A and | |
1609 | B: | |
1610 | ||
1611 | L1@A, L2@A, L3@B, ... | |
1612 | ||
1613 | BC_L could end up pointing at location L2, while the "master" | |
1614 | location could be L1. Since the `loc->inserted' flag is only set | |
1615 | on "master" locations, we'd forget to restore the shadow of L1 | |
1616 | and L2. */ | |
1617 | while (bc_l > 0 | |
1618 | && bp_location[bc_l]->address == bp_location[bc_l - 1]->address) | |
1619 | bc_l--; | |
1620 | ||
876fa593 JK |
1621 | /* Now do full processing of the found relevant range of elements. */ |
1622 | ||
1623 | for (bc = bc_l; bc < bp_location_count; bc++) | |
c5aa993b | 1624 | { |
35df4500 | 1625 | struct bp_location *bl = bp_location[bc]; |
876fa593 JK |
1626 | CORE_ADDR bp_addr = 0; |
1627 | int bp_size = 0; | |
1628 | int bptoffset = 0; | |
1629 | ||
35df4500 TJB |
1630 | /* bp_location array has BL->OWNER always non-NULL. */ |
1631 | if (bl->owner->type == bp_none) | |
8a3fe4f8 | 1632 | warning (_("reading through apparently deleted breakpoint #%d?"), |
35df4500 | 1633 | bl->owner->number); |
ffce0d52 | 1634 | |
e5dd4106 | 1635 | /* Performance optimization: any further element can no longer affect BUF |
876fa593 JK |
1636 | content. */ |
1637 | ||
35df4500 TJB |
1638 | if (bl->address >= bp_location_placed_address_before_address_max |
1639 | && memaddr + len <= (bl->address | |
1640 | - bp_location_placed_address_before_address_max)) | |
876fa593 JK |
1641 | break; |
1642 | ||
35df4500 | 1643 | if (!bp_location_has_shadow (bl)) |
c5aa993b | 1644 | continue; |
6c95b8df | 1645 | |
9d497a19 PA |
1646 | one_breakpoint_xfer_memory (readbuf, writebuf, writebuf_org, |
1647 | memaddr, len, &bl->target_info, bl->gdbarch); | |
1648 | } | |
c5aa993b | 1649 | |
9d497a19 PA |
1650 | /* Now process single-step breakpoints. These are not found in the |
1651 | bp_location array. */ | |
1652 | for (i = 0; i < 2; i++) | |
1653 | { | |
1654 | struct bp_target_info *bp_tgt = single_step_breakpoints[i]; | |
c5aa993b | 1655 | |
9d497a19 PA |
1656 | if (bp_tgt != NULL) |
1657 | { | |
1658 | struct gdbarch *gdbarch = single_step_gdbarch[i]; | |
c5aa993b | 1659 | |
9d497a19 PA |
1660 | one_breakpoint_xfer_memory (readbuf, writebuf, writebuf_org, |
1661 | memaddr, len, bp_tgt, gdbarch); | |
1662 | } | |
1663 | } | |
c906108c | 1664 | } |
9d497a19 | 1665 | |
c906108c | 1666 | \f |
c5aa993b | 1667 | |
b775012e LM |
1668 | /* Return true if BPT is either a software breakpoint or a hardware |
1669 | breakpoint. */ | |
1670 | ||
1671 | int | |
1672 | is_breakpoint (const struct breakpoint *bpt) | |
1673 | { | |
1674 | return (bpt->type == bp_breakpoint | |
e7e0cddf SS |
1675 | || bpt->type == bp_hardware_breakpoint |
1676 | || bpt->type == bp_dprintf); | |
b775012e LM |
1677 | } |
1678 | ||
60e1c644 PA |
1679 | /* Return true if BPT is of any hardware watchpoint kind. */ |
1680 | ||
a5606eee | 1681 | static int |
d77f58be | 1682 | is_hardware_watchpoint (const struct breakpoint *bpt) |
a5606eee VP |
1683 | { |
1684 | return (bpt->type == bp_hardware_watchpoint | |
1685 | || bpt->type == bp_read_watchpoint | |
1686 | || bpt->type == bp_access_watchpoint); | |
1687 | } | |
7270d8f2 | 1688 | |
60e1c644 PA |
1689 | /* Return true if BPT is of any watchpoint kind, hardware or |
1690 | software. */ | |
1691 | ||
3a5c3e22 | 1692 | int |
d77f58be | 1693 | is_watchpoint (const struct breakpoint *bpt) |
60e1c644 PA |
1694 | { |
1695 | return (is_hardware_watchpoint (bpt) | |
1696 | || bpt->type == bp_watchpoint); | |
1697 | } | |
1698 | ||
3a5c3e22 PA |
1699 | /* Returns true if the current thread and its running state are safe |
1700 | to evaluate or update watchpoint B. Watchpoints on local | |
1701 | expressions need to be evaluated in the context of the thread that | |
1702 | was current when the watchpoint was created, and, that thread needs | |
1703 | to be stopped to be able to select the correct frame context. | |
1704 | Watchpoints on global expressions can be evaluated on any thread, | |
1705 | and in any state. It is presently left to the target allowing | |
1706 | memory accesses when threads are running. */ | |
f6bc2008 PA |
1707 | |
1708 | static int | |
3a5c3e22 | 1709 | watchpoint_in_thread_scope (struct watchpoint *b) |
f6bc2008 | 1710 | { |
d0d8b0c6 JK |
1711 | return (b->base.pspace == current_program_space |
1712 | && (ptid_equal (b->watchpoint_thread, null_ptid) | |
1713 | || (ptid_equal (inferior_ptid, b->watchpoint_thread) | |
1714 | && !is_executing (inferior_ptid)))); | |
f6bc2008 PA |
1715 | } |
1716 | ||
d0fb5eae JK |
1717 | /* Set watchpoint B to disp_del_at_next_stop, even including its possible |
1718 | associated bp_watchpoint_scope breakpoint. */ | |
1719 | ||
1720 | static void | |
3a5c3e22 | 1721 | watchpoint_del_at_next_stop (struct watchpoint *w) |
d0fb5eae | 1722 | { |
3a5c3e22 | 1723 | struct breakpoint *b = &w->base; |
d0fb5eae JK |
1724 | |
1725 | if (b->related_breakpoint != b) | |
1726 | { | |
1727 | gdb_assert (b->related_breakpoint->type == bp_watchpoint_scope); | |
1728 | gdb_assert (b->related_breakpoint->related_breakpoint == b); | |
1729 | b->related_breakpoint->disposition = disp_del_at_next_stop; | |
1730 | b->related_breakpoint->related_breakpoint = b->related_breakpoint; | |
1731 | b->related_breakpoint = b; | |
1732 | } | |
1733 | b->disposition = disp_del_at_next_stop; | |
1734 | } | |
1735 | ||
bb9d5f81 PP |
1736 | /* Extract a bitfield value from value VAL using the bit parameters contained in |
1737 | watchpoint W. */ | |
1738 | ||
1739 | static struct value * | |
1740 | extract_bitfield_from_watchpoint_value (struct watchpoint *w, struct value *val) | |
1741 | { | |
1742 | struct value *bit_val; | |
1743 | ||
1744 | if (val == NULL) | |
1745 | return NULL; | |
1746 | ||
1747 | bit_val = allocate_value (value_type (val)); | |
1748 | ||
1749 | unpack_value_bitfield (bit_val, | |
1750 | w->val_bitpos, | |
1751 | w->val_bitsize, | |
1752 | value_contents_for_printing (val), | |
1753 | value_offset (val), | |
1754 | val); | |
1755 | ||
1756 | return bit_val; | |
1757 | } | |
1758 | ||
567e1b4e JB |
1759 | /* Assuming that B is a watchpoint: |
1760 | - Reparse watchpoint expression, if REPARSE is non-zero | |
a5606eee | 1761 | - Evaluate expression and store the result in B->val |
567e1b4e JB |
1762 | - Evaluate the condition if there is one, and store the result |
1763 | in b->loc->cond. | |
a5606eee VP |
1764 | - Update the list of values that must be watched in B->loc. |
1765 | ||
4a64f543 MS |
1766 | If the watchpoint disposition is disp_del_at_next_stop, then do |
1767 | nothing. If this is local watchpoint that is out of scope, delete | |
1768 | it. | |
1769 | ||
1770 | Even with `set breakpoint always-inserted on' the watchpoints are | |
1771 | removed + inserted on each stop here. Normal breakpoints must | |
1772 | never be removed because they might be missed by a running thread | |
1773 | when debugging in non-stop mode. On the other hand, hardware | |
1774 | watchpoints (is_hardware_watchpoint; processed here) are specific | |
1775 | to each LWP since they are stored in each LWP's hardware debug | |
1776 | registers. Therefore, such LWP must be stopped first in order to | |
1777 | be able to modify its hardware watchpoints. | |
1778 | ||
1779 | Hardware watchpoints must be reset exactly once after being | |
1780 | presented to the user. It cannot be done sooner, because it would | |
1781 | reset the data used to present the watchpoint hit to the user. And | |
1782 | it must not be done later because it could display the same single | |
1783 | watchpoint hit during multiple GDB stops. Note that the latter is | |
1784 | relevant only to the hardware watchpoint types bp_read_watchpoint | |
1785 | and bp_access_watchpoint. False hit by bp_hardware_watchpoint is | |
1786 | not user-visible - its hit is suppressed if the memory content has | |
1787 | not changed. | |
1788 | ||
1789 | The following constraints influence the location where we can reset | |
1790 | hardware watchpoints: | |
1791 | ||
1792 | * target_stopped_by_watchpoint and target_stopped_data_address are | |
1793 | called several times when GDB stops. | |
1794 | ||
1795 | [linux] | |
1796 | * Multiple hardware watchpoints can be hit at the same time, | |
1797 | causing GDB to stop. GDB only presents one hardware watchpoint | |
1798 | hit at a time as the reason for stopping, and all the other hits | |
1799 | are presented later, one after the other, each time the user | |
1800 | requests the execution to be resumed. Execution is not resumed | |
1801 | for the threads still having pending hit event stored in | |
1802 | LWP_INFO->STATUS. While the watchpoint is already removed from | |
1803 | the inferior on the first stop the thread hit event is kept being | |
1804 | reported from its cached value by linux_nat_stopped_data_address | |
1805 | until the real thread resume happens after the watchpoint gets | |
1806 | presented and thus its LWP_INFO->STATUS gets reset. | |
1807 | ||
1808 | Therefore the hardware watchpoint hit can get safely reset on the | |
1809 | watchpoint removal from inferior. */ | |
a79d3c27 | 1810 | |
b40ce68a | 1811 | static void |
3a5c3e22 | 1812 | update_watchpoint (struct watchpoint *b, int reparse) |
7270d8f2 | 1813 | { |
a5606eee | 1814 | int within_current_scope; |
a5606eee | 1815 | struct frame_id saved_frame_id; |
66076460 | 1816 | int frame_saved; |
a5606eee | 1817 | |
f6bc2008 PA |
1818 | /* If this is a local watchpoint, we only want to check if the |
1819 | watchpoint frame is in scope if the current thread is the thread | |
1820 | that was used to create the watchpoint. */ | |
1821 | if (!watchpoint_in_thread_scope (b)) | |
1822 | return; | |
1823 | ||
3a5c3e22 | 1824 | if (b->base.disposition == disp_del_at_next_stop) |
a5606eee VP |
1825 | return; |
1826 | ||
66076460 | 1827 | frame_saved = 0; |
a5606eee VP |
1828 | |
1829 | /* Determine if the watchpoint is within scope. */ | |
1830 | if (b->exp_valid_block == NULL) | |
1831 | within_current_scope = 1; | |
1832 | else | |
1833 | { | |
b5db5dfc UW |
1834 | struct frame_info *fi = get_current_frame (); |
1835 | struct gdbarch *frame_arch = get_frame_arch (fi); | |
1836 | CORE_ADDR frame_pc = get_frame_pc (fi); | |
1837 | ||
1838 | /* If we're in a function epilogue, unwinding may not work | |
1839 | properly, so do not attempt to recreate locations at this | |
1840 | point. See similar comments in watchpoint_check. */ | |
1841 | if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc)) | |
1842 | return; | |
66076460 DJ |
1843 | |
1844 | /* Save the current frame's ID so we can restore it after | |
1845 | evaluating the watchpoint expression on its own frame. */ | |
1846 | /* FIXME drow/2003-09-09: It would be nice if evaluate_expression | |
1847 | took a frame parameter, so that we didn't have to change the | |
1848 | selected frame. */ | |
1849 | frame_saved = 1; | |
1850 | saved_frame_id = get_frame_id (get_selected_frame (NULL)); | |
1851 | ||
a5606eee VP |
1852 | fi = frame_find_by_id (b->watchpoint_frame); |
1853 | within_current_scope = (fi != NULL); | |
1854 | if (within_current_scope) | |
1855 | select_frame (fi); | |
1856 | } | |
1857 | ||
b5db5dfc UW |
1858 | /* We don't free locations. They are stored in the bp_location array |
1859 | and update_global_location_list will eventually delete them and | |
1860 | remove breakpoints if needed. */ | |
3a5c3e22 | 1861 | b->base.loc = NULL; |
b5db5dfc | 1862 | |
a5606eee VP |
1863 | if (within_current_scope && reparse) |
1864 | { | |
bbc13ae3 | 1865 | const char *s; |
d63d0675 | 1866 | |
a5606eee VP |
1867 | if (b->exp) |
1868 | { | |
1869 | xfree (b->exp); | |
1870 | b->exp = NULL; | |
1871 | } | |
d63d0675 | 1872 | s = b->exp_string_reparse ? b->exp_string_reparse : b->exp_string; |
1bb9788d | 1873 | b->exp = parse_exp_1 (&s, 0, b->exp_valid_block, 0); |
a5606eee VP |
1874 | /* If the meaning of expression itself changed, the old value is |
1875 | no longer relevant. We don't want to report a watchpoint hit | |
1876 | to the user when the old value and the new value may actually | |
1877 | be completely different objects. */ | |
1878 | value_free (b->val); | |
fa4727a6 DJ |
1879 | b->val = NULL; |
1880 | b->val_valid = 0; | |
60e1c644 PA |
1881 | |
1882 | /* Note that unlike with breakpoints, the watchpoint's condition | |
1883 | expression is stored in the breakpoint object, not in the | |
1884 | locations (re)created below. */ | |
3a5c3e22 | 1885 | if (b->base.cond_string != NULL) |
60e1c644 PA |
1886 | { |
1887 | if (b->cond_exp != NULL) | |
1888 | { | |
1889 | xfree (b->cond_exp); | |
1890 | b->cond_exp = NULL; | |
1891 | } | |
1892 | ||
3a5c3e22 | 1893 | s = b->base.cond_string; |
1bb9788d | 1894 | b->cond_exp = parse_exp_1 (&s, 0, b->cond_exp_valid_block, 0); |
60e1c644 | 1895 | } |
a5606eee | 1896 | } |
a5606eee VP |
1897 | |
1898 | /* If we failed to parse the expression, for example because | |
1899 | it refers to a global variable in a not-yet-loaded shared library, | |
1900 | don't try to insert watchpoint. We don't automatically delete | |
1901 | such watchpoint, though, since failure to parse expression | |
1902 | is different from out-of-scope watchpoint. */ | |
e8369a73 | 1903 | if (!target_has_execution) |
2d134ed3 PA |
1904 | { |
1905 | /* Without execution, memory can't change. No use to try and | |
1906 | set watchpoint locations. The watchpoint will be reset when | |
1907 | the target gains execution, through breakpoint_re_set. */ | |
e8369a73 AB |
1908 | if (!can_use_hw_watchpoints) |
1909 | { | |
1910 | if (b->base.ops->works_in_software_mode (&b->base)) | |
1911 | b->base.type = bp_watchpoint; | |
1912 | else | |
638aa5a1 AB |
1913 | error (_("Can't set read/access watchpoint when " |
1914 | "hardware watchpoints are disabled.")); | |
e8369a73 | 1915 | } |
2d134ed3 PA |
1916 | } |
1917 | else if (within_current_scope && b->exp) | |
a5606eee | 1918 | { |
0cf6dd15 | 1919 | int pc = 0; |
fa4727a6 | 1920 | struct value *val_chain, *v, *result, *next; |
2d134ed3 | 1921 | struct program_space *frame_pspace; |
a5606eee | 1922 | |
3a1115a0 | 1923 | fetch_subexp_value (b->exp, &pc, &v, &result, &val_chain, 0); |
a5606eee | 1924 | |
a5606eee VP |
1925 | /* Avoid setting b->val if it's already set. The meaning of |
1926 | b->val is 'the last value' user saw, and we should update | |
1927 | it only if we reported that last value to user. As it | |
9c06b0b4 TJB |
1928 | happens, the code that reports it updates b->val directly. |
1929 | We don't keep track of the memory value for masked | |
1930 | watchpoints. */ | |
3a5c3e22 | 1931 | if (!b->val_valid && !is_masked_watchpoint (&b->base)) |
fa4727a6 | 1932 | { |
bb9d5f81 PP |
1933 | if (b->val_bitsize != 0) |
1934 | { | |
1935 | v = extract_bitfield_from_watchpoint_value (b, v); | |
1936 | if (v != NULL) | |
1937 | release_value (v); | |
1938 | } | |
fa4727a6 DJ |
1939 | b->val = v; |
1940 | b->val_valid = 1; | |
1941 | } | |
a5606eee | 1942 | |
2d134ed3 PA |
1943 | frame_pspace = get_frame_program_space (get_selected_frame (NULL)); |
1944 | ||
a5606eee | 1945 | /* Look at each value on the value chain. */ |
9fa40276 | 1946 | for (v = val_chain; v; v = value_next (v)) |
a5606eee VP |
1947 | { |
1948 | /* If it's a memory location, and GDB actually needed | |
1949 | its contents to evaluate the expression, then we | |
fa4727a6 DJ |
1950 | must watch it. If the first value returned is |
1951 | still lazy, that means an error occurred reading it; | |
1952 | watch it anyway in case it becomes readable. */ | |
a5606eee | 1953 | if (VALUE_LVAL (v) == lval_memory |
fa4727a6 | 1954 | && (v == val_chain || ! value_lazy (v))) |
a5606eee VP |
1955 | { |
1956 | struct type *vtype = check_typedef (value_type (v)); | |
7270d8f2 | 1957 | |
a5606eee VP |
1958 | /* We only watch structs and arrays if user asked |
1959 | for it explicitly, never if they just happen to | |
1960 | appear in the middle of some value chain. */ | |
fa4727a6 | 1961 | if (v == result |
a5606eee VP |
1962 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT |
1963 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
1964 | { | |
1965 | CORE_ADDR addr; | |
744a8059 | 1966 | int type; |
a5606eee | 1967 | struct bp_location *loc, **tmp; |
bb9d5f81 PP |
1968 | int bitpos = 0, bitsize = 0; |
1969 | ||
1970 | if (value_bitsize (v) != 0) | |
1971 | { | |
1972 | /* Extract the bit parameters out from the bitfield | |
1973 | sub-expression. */ | |
1974 | bitpos = value_bitpos (v); | |
1975 | bitsize = value_bitsize (v); | |
1976 | } | |
1977 | else if (v == result && b->val_bitsize != 0) | |
1978 | { | |
1979 | /* If VAL_BITSIZE != 0 then RESULT is actually a bitfield | |
1980 | lvalue whose bit parameters are saved in the fields | |
1981 | VAL_BITPOS and VAL_BITSIZE. */ | |
1982 | bitpos = b->val_bitpos; | |
1983 | bitsize = b->val_bitsize; | |
1984 | } | |
a5606eee | 1985 | |
42ae5230 | 1986 | addr = value_address (v); |
bb9d5f81 PP |
1987 | if (bitsize != 0) |
1988 | { | |
1989 | /* Skip the bytes that don't contain the bitfield. */ | |
1990 | addr += bitpos / 8; | |
1991 | } | |
1992 | ||
a5606eee | 1993 | type = hw_write; |
3a5c3e22 | 1994 | if (b->base.type == bp_read_watchpoint) |
a5606eee | 1995 | type = hw_read; |
3a5c3e22 | 1996 | else if (b->base.type == bp_access_watchpoint) |
a5606eee | 1997 | type = hw_access; |
3a5c3e22 PA |
1998 | |
1999 | loc = allocate_bp_location (&b->base); | |
2000 | for (tmp = &(b->base.loc); *tmp != NULL; tmp = &((*tmp)->next)) | |
a5606eee VP |
2001 | ; |
2002 | *tmp = loc; | |
a6d9a66e | 2003 | loc->gdbarch = get_type_arch (value_type (v)); |
6c95b8df PA |
2004 | |
2005 | loc->pspace = frame_pspace; | |
a5606eee | 2006 | loc->address = addr; |
bb9d5f81 PP |
2007 | |
2008 | if (bitsize != 0) | |
2009 | { | |
2010 | /* Just cover the bytes that make up the bitfield. */ | |
2011 | loc->length = ((bitpos % 8) + bitsize + 7) / 8; | |
2012 | } | |
2013 | else | |
2014 | loc->length = TYPE_LENGTH (value_type (v)); | |
2015 | ||
a5606eee VP |
2016 | loc->watchpoint_type = type; |
2017 | } | |
2018 | } | |
9fa40276 TJB |
2019 | } |
2020 | ||
2021 | /* Change the type of breakpoint between hardware assisted or | |
2022 | an ordinary watchpoint depending on the hardware support | |
2023 | and free hardware slots. REPARSE is set when the inferior | |
2024 | is started. */ | |
a9634178 | 2025 | if (reparse) |
9fa40276 | 2026 | { |
e09342b5 | 2027 | int reg_cnt; |
9fa40276 TJB |
2028 | enum bp_loc_type loc_type; |
2029 | struct bp_location *bl; | |
a5606eee | 2030 | |
a9634178 | 2031 | reg_cnt = can_use_hardware_watchpoint (val_chain); |
e09342b5 TJB |
2032 | |
2033 | if (reg_cnt) | |
9fa40276 TJB |
2034 | { |
2035 | int i, target_resources_ok, other_type_used; | |
a1398e0c | 2036 | enum bptype type; |
9fa40276 | 2037 | |
a9634178 TJB |
2038 | /* Use an exact watchpoint when there's only one memory region to be |
2039 | watched, and only one debug register is needed to watch it. */ | |
2040 | b->exact = target_exact_watchpoints && reg_cnt == 1; | |
2041 | ||
9fa40276 | 2042 | /* We need to determine how many resources are already |
e09342b5 TJB |
2043 | used for all other hardware watchpoints plus this one |
2044 | to see if we still have enough resources to also fit | |
a1398e0c PA |
2045 | this watchpoint in as well. */ |
2046 | ||
2047 | /* If this is a software watchpoint, we try to turn it | |
2048 | to a hardware one -- count resources as if B was of | |
2049 | hardware watchpoint type. */ | |
2050 | type = b->base.type; | |
2051 | if (type == bp_watchpoint) | |
2052 | type = bp_hardware_watchpoint; | |
2053 | ||
2054 | /* This watchpoint may or may not have been placed on | |
2055 | the list yet at this point (it won't be in the list | |
2056 | if we're trying to create it for the first time, | |
2057 | through watch_command), so always account for it | |
2058 | manually. */ | |
2059 | ||
2060 | /* Count resources used by all watchpoints except B. */ | |
2061 | i = hw_watchpoint_used_count_others (&b->base, type, &other_type_used); | |
2062 | ||
2063 | /* Add in the resources needed for B. */ | |
2064 | i += hw_watchpoint_use_count (&b->base); | |
2065 | ||
2066 | target_resources_ok | |
2067 | = target_can_use_hardware_watchpoint (type, i, other_type_used); | |
e09342b5 | 2068 | if (target_resources_ok <= 0) |
a9634178 | 2069 | { |
3a5c3e22 | 2070 | int sw_mode = b->base.ops->works_in_software_mode (&b->base); |
9c06b0b4 TJB |
2071 | |
2072 | if (target_resources_ok == 0 && !sw_mode) | |
a9634178 TJB |
2073 | error (_("Target does not support this type of " |
2074 | "hardware watchpoint.")); | |
9c06b0b4 TJB |
2075 | else if (target_resources_ok < 0 && !sw_mode) |
2076 | error (_("There are not enough available hardware " | |
2077 | "resources for this watchpoint.")); | |
a1398e0c PA |
2078 | |
2079 | /* Downgrade to software watchpoint. */ | |
2080 | b->base.type = bp_watchpoint; | |
2081 | } | |
2082 | else | |
2083 | { | |
2084 | /* If this was a software watchpoint, we've just | |
2085 | found we have enough resources to turn it to a | |
2086 | hardware watchpoint. Otherwise, this is a | |
2087 | nop. */ | |
2088 | b->base.type = type; | |
a9634178 | 2089 | } |
9fa40276 | 2090 | } |
3a5c3e22 | 2091 | else if (!b->base.ops->works_in_software_mode (&b->base)) |
638aa5a1 AB |
2092 | { |
2093 | if (!can_use_hw_watchpoints) | |
2094 | error (_("Can't set read/access watchpoint when " | |
2095 | "hardware watchpoints are disabled.")); | |
2096 | else | |
2097 | error (_("Expression cannot be implemented with " | |
2098 | "read/access watchpoint.")); | |
2099 | } | |
9fa40276 | 2100 | else |
3a5c3e22 | 2101 | b->base.type = bp_watchpoint; |
9fa40276 | 2102 | |
3a5c3e22 | 2103 | loc_type = (b->base.type == bp_watchpoint? bp_loc_other |
9fa40276 | 2104 | : bp_loc_hardware_watchpoint); |
3a5c3e22 | 2105 | for (bl = b->base.loc; bl; bl = bl->next) |
9fa40276 TJB |
2106 | bl->loc_type = loc_type; |
2107 | } | |
2108 | ||
2109 | for (v = val_chain; v; v = next) | |
2110 | { | |
a5606eee VP |
2111 | next = value_next (v); |
2112 | if (v != b->val) | |
2113 | value_free (v); | |
2114 | } | |
2115 | ||
c7437ca6 PA |
2116 | /* If a software watchpoint is not watching any memory, then the |
2117 | above left it without any location set up. But, | |
2118 | bpstat_stop_status requires a location to be able to report | |
2119 | stops, so make sure there's at least a dummy one. */ | |
3a5c3e22 | 2120 | if (b->base.type == bp_watchpoint && b->base.loc == NULL) |
c7437ca6 | 2121 | { |
3a5c3e22 PA |
2122 | struct breakpoint *base = &b->base; |
2123 | base->loc = allocate_bp_location (base); | |
2124 | base->loc->pspace = frame_pspace; | |
2125 | base->loc->address = -1; | |
2126 | base->loc->length = -1; | |
2127 | base->loc->watchpoint_type = -1; | |
c7437ca6 | 2128 | } |
a5606eee VP |
2129 | } |
2130 | else if (!within_current_scope) | |
7270d8f2 | 2131 | { |
ac74f770 MS |
2132 | printf_filtered (_("\ |
2133 | Watchpoint %d deleted because the program has left the block\n\ | |
2134 | in which its expression is valid.\n"), | |
3a5c3e22 | 2135 | b->base.number); |
d0fb5eae | 2136 | watchpoint_del_at_next_stop (b); |
7270d8f2 | 2137 | } |
a5606eee VP |
2138 | |
2139 | /* Restore the selected frame. */ | |
66076460 DJ |
2140 | if (frame_saved) |
2141 | select_frame (frame_find_by_id (saved_frame_id)); | |
7270d8f2 OF |
2142 | } |
2143 | ||
a5606eee | 2144 | |
74960c60 | 2145 | /* Returns 1 iff breakpoint location should be |
1e4d1764 YQ |
2146 | inserted in the inferior. We don't differentiate the type of BL's owner |
2147 | (breakpoint vs. tracepoint), although insert_location in tracepoint's | |
2148 | breakpoint_ops is not defined, because in insert_bp_location, | |
2149 | tracepoint's insert_location will not be called. */ | |
74960c60 | 2150 | static int |
35df4500 | 2151 | should_be_inserted (struct bp_location *bl) |
74960c60 | 2152 | { |
35df4500 | 2153 | if (bl->owner == NULL || !breakpoint_enabled (bl->owner)) |
74960c60 VP |
2154 | return 0; |
2155 | ||
35df4500 | 2156 | if (bl->owner->disposition == disp_del_at_next_stop) |
74960c60 VP |
2157 | return 0; |
2158 | ||
35df4500 | 2159 | if (!bl->enabled || bl->shlib_disabled || bl->duplicate) |
74960c60 VP |
2160 | return 0; |
2161 | ||
f8eba3c6 TT |
2162 | if (user_breakpoint_p (bl->owner) && bl->pspace->executing_startup) |
2163 | return 0; | |
2164 | ||
56710373 PA |
2165 | /* This is set for example, when we're attached to the parent of a |
2166 | vfork, and have detached from the child. The child is running | |
2167 | free, and we expect it to do an exec or exit, at which point the | |
2168 | OS makes the parent schedulable again (and the target reports | |
2169 | that the vfork is done). Until the child is done with the shared | |
2170 | memory region, do not insert breakpoints in the parent, otherwise | |
2171 | the child could still trip on the parent's breakpoints. Since | |
2172 | the parent is blocked anyway, it won't miss any breakpoint. */ | |
35df4500 | 2173 | if (bl->pspace->breakpoints_not_allowed) |
56710373 PA |
2174 | return 0; |
2175 | ||
31e77af2 PA |
2176 | /* Don't insert a breakpoint if we're trying to step past its |
2177 | location. */ | |
2178 | if ((bl->loc_type == bp_loc_software_breakpoint | |
2179 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
2180 | && stepping_past_instruction_at (bl->pspace->aspace, | |
2181 | bl->address)) | |
2182 | return 0; | |
2183 | ||
74960c60 VP |
2184 | return 1; |
2185 | } | |
2186 | ||
934709f0 PW |
2187 | /* Same as should_be_inserted but does the check assuming |
2188 | that the location is not duplicated. */ | |
2189 | ||
2190 | static int | |
2191 | unduplicated_should_be_inserted (struct bp_location *bl) | |
2192 | { | |
2193 | int result; | |
2194 | const int save_duplicate = bl->duplicate; | |
2195 | ||
2196 | bl->duplicate = 0; | |
2197 | result = should_be_inserted (bl); | |
2198 | bl->duplicate = save_duplicate; | |
2199 | return result; | |
2200 | } | |
2201 | ||
b775012e LM |
2202 | /* Parses a conditional described by an expression COND into an |
2203 | agent expression bytecode suitable for evaluation | |
2204 | by the bytecode interpreter. Return NULL if there was | |
2205 | any error during parsing. */ | |
2206 | ||
2207 | static struct agent_expr * | |
2208 | parse_cond_to_aexpr (CORE_ADDR scope, struct expression *cond) | |
2209 | { | |
2210 | struct agent_expr *aexpr = NULL; | |
b775012e LM |
2211 | volatile struct gdb_exception ex; |
2212 | ||
2213 | if (!cond) | |
2214 | return NULL; | |
2215 | ||
2216 | /* We don't want to stop processing, so catch any errors | |
2217 | that may show up. */ | |
2218 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
2219 | { | |
2220 | aexpr = gen_eval_for_expr (scope, cond); | |
2221 | } | |
2222 | ||
2223 | if (ex.reason < 0) | |
2224 | { | |
2225 | /* If we got here, it means the condition could not be parsed to a valid | |
2226 | bytecode expression and thus can't be evaluated on the target's side. | |
2227 | It's no use iterating through the conditions. */ | |
2228 | return NULL; | |
2229 | } | |
2230 | ||
2231 | /* We have a valid agent expression. */ | |
2232 | return aexpr; | |
2233 | } | |
2234 | ||
2235 | /* Based on location BL, create a list of breakpoint conditions to be | |
2236 | passed on to the target. If we have duplicated locations with different | |
2237 | conditions, we will add such conditions to the list. The idea is that the | |
2238 | target will evaluate the list of conditions and will only notify GDB when | |
2239 | one of them is true. */ | |
2240 | ||
2241 | static void | |
2242 | build_target_condition_list (struct bp_location *bl) | |
2243 | { | |
2244 | struct bp_location **locp = NULL, **loc2p; | |
2245 | int null_condition_or_parse_error = 0; | |
2246 | int modified = bl->needs_update; | |
2247 | struct bp_location *loc; | |
2248 | ||
8b4f3082 PA |
2249 | /* Release conditions left over from a previous insert. */ |
2250 | VEC_free (agent_expr_p, bl->target_info.conditions); | |
2251 | ||
b775012e LM |
2252 | /* This is only meaningful if the target is |
2253 | evaluating conditions and if the user has | |
2254 | opted for condition evaluation on the target's | |
2255 | side. */ | |
2256 | if (gdb_evaluates_breakpoint_condition_p () | |
2257 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
2258 | return; | |
2259 | ||
2260 | /* Do a first pass to check for locations with no assigned | |
2261 | conditions or conditions that fail to parse to a valid agent expression | |
2262 | bytecode. If any of these happen, then it's no use to send conditions | |
2263 | to the target since this location will always trigger and generate a | |
2264 | response back to GDB. */ | |
2265 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2266 | { | |
2267 | loc = (*loc2p); | |
2268 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2269 | { | |
2270 | if (modified) | |
2271 | { | |
2272 | struct agent_expr *aexpr; | |
2273 | ||
2274 | /* Re-parse the conditions since something changed. In that | |
2275 | case we already freed the condition bytecodes (see | |
2276 | force_breakpoint_reinsertion). We just | |
2277 | need to parse the condition to bytecodes again. */ | |
2278 | aexpr = parse_cond_to_aexpr (bl->address, loc->cond); | |
2279 | loc->cond_bytecode = aexpr; | |
2280 | ||
2281 | /* Check if we managed to parse the conditional expression | |
2282 | correctly. If not, we will not send this condition | |
2283 | to the target. */ | |
2284 | if (aexpr) | |
2285 | continue; | |
2286 | } | |
2287 | ||
2288 | /* If we have a NULL bytecode expression, it means something | |
2289 | went wrong or we have a null condition expression. */ | |
2290 | if (!loc->cond_bytecode) | |
2291 | { | |
2292 | null_condition_or_parse_error = 1; | |
2293 | break; | |
2294 | } | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | /* If any of these happened, it means we will have to evaluate the conditions | |
2299 | for the location's address on gdb's side. It is no use keeping bytecodes | |
2300 | for all the other duplicate locations, thus we free all of them here. | |
2301 | ||
2302 | This is so we have a finer control over which locations' conditions are | |
2303 | being evaluated by GDB or the remote stub. */ | |
2304 | if (null_condition_or_parse_error) | |
2305 | { | |
2306 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2307 | { | |
2308 | loc = (*loc2p); | |
2309 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2310 | { | |
2311 | /* Only go as far as the first NULL bytecode is | |
2312 | located. */ | |
2313 | if (!loc->cond_bytecode) | |
2314 | return; | |
2315 | ||
2316 | free_agent_expr (loc->cond_bytecode); | |
2317 | loc->cond_bytecode = NULL; | |
2318 | } | |
2319 | } | |
2320 | } | |
2321 | ||
2322 | /* No NULL conditions or failed bytecode generation. Build a condition list | |
2323 | for this location's address. */ | |
2324 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2325 | { | |
2326 | loc = (*loc2p); | |
2327 | if (loc->cond | |
2328 | && is_breakpoint (loc->owner) | |
2329 | && loc->pspace->num == bl->pspace->num | |
2330 | && loc->owner->enable_state == bp_enabled | |
2331 | && loc->enabled) | |
2332 | /* Add the condition to the vector. This will be used later to send the | |
2333 | conditions to the target. */ | |
2334 | VEC_safe_push (agent_expr_p, bl->target_info.conditions, | |
2335 | loc->cond_bytecode); | |
2336 | } | |
2337 | ||
2338 | return; | |
2339 | } | |
2340 | ||
d3ce09f5 SS |
2341 | /* Parses a command described by string CMD into an agent expression |
2342 | bytecode suitable for evaluation by the bytecode interpreter. | |
2343 | Return NULL if there was any error during parsing. */ | |
2344 | ||
2345 | static struct agent_expr * | |
2346 | parse_cmd_to_aexpr (CORE_ADDR scope, char *cmd) | |
2347 | { | |
2348 | struct cleanup *old_cleanups = 0; | |
2349 | struct expression *expr, **argvec; | |
2350 | struct agent_expr *aexpr = NULL; | |
d3ce09f5 | 2351 | volatile struct gdb_exception ex; |
bbc13ae3 KS |
2352 | const char *cmdrest; |
2353 | const char *format_start, *format_end; | |
d3ce09f5 SS |
2354 | struct format_piece *fpieces; |
2355 | int nargs; | |
2356 | struct gdbarch *gdbarch = get_current_arch (); | |
2357 | ||
2358 | if (!cmd) | |
2359 | return NULL; | |
2360 | ||
2361 | cmdrest = cmd; | |
2362 | ||
2363 | if (*cmdrest == ',') | |
2364 | ++cmdrest; | |
bbc13ae3 | 2365 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2366 | |
2367 | if (*cmdrest++ != '"') | |
2368 | error (_("No format string following the location")); | |
2369 | ||
2370 | format_start = cmdrest; | |
2371 | ||
2372 | fpieces = parse_format_string (&cmdrest); | |
2373 | ||
2374 | old_cleanups = make_cleanup (free_format_pieces_cleanup, &fpieces); | |
2375 | ||
2376 | format_end = cmdrest; | |
2377 | ||
2378 | if (*cmdrest++ != '"') | |
2379 | error (_("Bad format string, non-terminated '\"'.")); | |
2380 | ||
bbc13ae3 | 2381 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2382 | |
2383 | if (!(*cmdrest == ',' || *cmdrest == '\0')) | |
2384 | error (_("Invalid argument syntax")); | |
2385 | ||
2386 | if (*cmdrest == ',') | |
2387 | cmdrest++; | |
bbc13ae3 | 2388 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2389 | |
2390 | /* For each argument, make an expression. */ | |
2391 | ||
2392 | argvec = (struct expression **) alloca (strlen (cmd) | |
2393 | * sizeof (struct expression *)); | |
2394 | ||
2395 | nargs = 0; | |
2396 | while (*cmdrest != '\0') | |
2397 | { | |
bbc13ae3 | 2398 | const char *cmd1; |
d3ce09f5 SS |
2399 | |
2400 | cmd1 = cmdrest; | |
2401 | expr = parse_exp_1 (&cmd1, scope, block_for_pc (scope), 1); | |
2402 | argvec[nargs++] = expr; | |
2403 | cmdrest = cmd1; | |
2404 | if (*cmdrest == ',') | |
2405 | ++cmdrest; | |
2406 | } | |
2407 | ||
2408 | /* We don't want to stop processing, so catch any errors | |
2409 | that may show up. */ | |
2410 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
2411 | { | |
2412 | aexpr = gen_printf (scope, gdbarch, 0, 0, | |
2413 | format_start, format_end - format_start, | |
2414 | fpieces, nargs, argvec); | |
2415 | } | |
2416 | ||
752eb8b4 TT |
2417 | do_cleanups (old_cleanups); |
2418 | ||
d3ce09f5 SS |
2419 | if (ex.reason < 0) |
2420 | { | |
2421 | /* If we got here, it means the command could not be parsed to a valid | |
2422 | bytecode expression and thus can't be evaluated on the target's side. | |
2423 | It's no use iterating through the other commands. */ | |
2424 | return NULL; | |
2425 | } | |
2426 | ||
d3ce09f5 SS |
2427 | /* We have a valid agent expression, return it. */ |
2428 | return aexpr; | |
2429 | } | |
2430 | ||
2431 | /* Based on location BL, create a list of breakpoint commands to be | |
2432 | passed on to the target. If we have duplicated locations with | |
2433 | different commands, we will add any such to the list. */ | |
2434 | ||
2435 | static void | |
2436 | build_target_command_list (struct bp_location *bl) | |
2437 | { | |
2438 | struct bp_location **locp = NULL, **loc2p; | |
2439 | int null_command_or_parse_error = 0; | |
2440 | int modified = bl->needs_update; | |
2441 | struct bp_location *loc; | |
2442 | ||
8b4f3082 PA |
2443 | /* Release commands left over from a previous insert. */ |
2444 | VEC_free (agent_expr_p, bl->target_info.tcommands); | |
2445 | ||
41fac0cf | 2446 | if (!target_can_run_breakpoint_commands ()) |
d3ce09f5 SS |
2447 | return; |
2448 | ||
41fac0cf PA |
2449 | /* For now, limit to agent-style dprintf breakpoints. */ |
2450 | if (dprintf_style != dprintf_style_agent) | |
d3ce09f5 SS |
2451 | return; |
2452 | ||
41fac0cf PA |
2453 | /* For now, if we have any duplicate location that isn't a dprintf, |
2454 | don't install the target-side commands, as that would make the | |
2455 | breakpoint not be reported to the core, and we'd lose | |
2456 | control. */ | |
2457 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2458 | { | |
2459 | loc = (*loc2p); | |
2460 | if (is_breakpoint (loc->owner) | |
2461 | && loc->pspace->num == bl->pspace->num | |
2462 | && loc->owner->type != bp_dprintf) | |
2463 | return; | |
2464 | } | |
2465 | ||
d3ce09f5 SS |
2466 | /* Do a first pass to check for locations with no assigned |
2467 | conditions or conditions that fail to parse to a valid agent expression | |
2468 | bytecode. If any of these happen, then it's no use to send conditions | |
2469 | to the target since this location will always trigger and generate a | |
2470 | response back to GDB. */ | |
2471 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2472 | { | |
2473 | loc = (*loc2p); | |
2474 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2475 | { | |
2476 | if (modified) | |
2477 | { | |
2478 | struct agent_expr *aexpr; | |
2479 | ||
2480 | /* Re-parse the commands since something changed. In that | |
2481 | case we already freed the command bytecodes (see | |
2482 | force_breakpoint_reinsertion). We just | |
2483 | need to parse the command to bytecodes again. */ | |
2484 | aexpr = parse_cmd_to_aexpr (bl->address, | |
2485 | loc->owner->extra_string); | |
2486 | loc->cmd_bytecode = aexpr; | |
2487 | ||
2488 | if (!aexpr) | |
2489 | continue; | |
2490 | } | |
2491 | ||
2492 | /* If we have a NULL bytecode expression, it means something | |
2493 | went wrong or we have a null command expression. */ | |
2494 | if (!loc->cmd_bytecode) | |
2495 | { | |
2496 | null_command_or_parse_error = 1; | |
2497 | break; | |
2498 | } | |
2499 | } | |
2500 | } | |
2501 | ||
2502 | /* If anything failed, then we're not doing target-side commands, | |
2503 | and so clean up. */ | |
2504 | if (null_command_or_parse_error) | |
2505 | { | |
2506 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2507 | { | |
2508 | loc = (*loc2p); | |
2509 | if (is_breakpoint (loc->owner) | |
2510 | && loc->pspace->num == bl->pspace->num) | |
2511 | { | |
2512 | /* Only go as far as the first NULL bytecode is | |
2513 | located. */ | |
40fb6c5e | 2514 | if (loc->cmd_bytecode == NULL) |
d3ce09f5 SS |
2515 | return; |
2516 | ||
40fb6c5e HZ |
2517 | free_agent_expr (loc->cmd_bytecode); |
2518 | loc->cmd_bytecode = NULL; | |
d3ce09f5 SS |
2519 | } |
2520 | } | |
2521 | } | |
2522 | ||
2523 | /* No NULL commands or failed bytecode generation. Build a command list | |
2524 | for this location's address. */ | |
2525 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2526 | { | |
2527 | loc = (*loc2p); | |
2528 | if (loc->owner->extra_string | |
2529 | && is_breakpoint (loc->owner) | |
2530 | && loc->pspace->num == bl->pspace->num | |
2531 | && loc->owner->enable_state == bp_enabled | |
2532 | && loc->enabled) | |
2533 | /* Add the command to the vector. This will be used later | |
2534 | to send the commands to the target. */ | |
2535 | VEC_safe_push (agent_expr_p, bl->target_info.tcommands, | |
2536 | loc->cmd_bytecode); | |
2537 | } | |
2538 | ||
2539 | bl->target_info.persist = 0; | |
2540 | /* Maybe flag this location as persistent. */ | |
2541 | if (bl->owner->type == bp_dprintf && disconnected_dprintf) | |
2542 | bl->target_info.persist = 1; | |
2543 | } | |
2544 | ||
35df4500 TJB |
2545 | /* Insert a low-level "breakpoint" of some type. BL is the breakpoint |
2546 | location. Any error messages are printed to TMP_ERROR_STREAM; and | |
3fbb6ffa | 2547 | DISABLED_BREAKS, and HW_BREAKPOINT_ERROR are used to report problems. |
c30eee59 TJB |
2548 | Returns 0 for success, 1 if the bp_location type is not supported or |
2549 | -1 for failure. | |
879bfdc2 | 2550 | |
4a64f543 MS |
2551 | NOTE drow/2003-09-09: This routine could be broken down to an |
2552 | object-style method for each breakpoint or catchpoint type. */ | |
26bb91f3 | 2553 | static int |
35df4500 | 2554 | insert_bp_location (struct bp_location *bl, |
26bb91f3 | 2555 | struct ui_file *tmp_error_stream, |
3fbb6ffa | 2556 | int *disabled_breaks, |
dd61ec5c MW |
2557 | int *hw_breakpoint_error, |
2558 | int *hw_bp_error_explained_already) | |
879bfdc2 | 2559 | { |
0000e5cc PA |
2560 | enum errors bp_err = GDB_NO_ERROR; |
2561 | const char *bp_err_message = NULL; | |
c90a6fb7 | 2562 | volatile struct gdb_exception e; |
879bfdc2 | 2563 | |
b775012e | 2564 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
2565 | return 0; |
2566 | ||
35c63cd8 JB |
2567 | /* Note we don't initialize bl->target_info, as that wipes out |
2568 | the breakpoint location's shadow_contents if the breakpoint | |
2569 | is still inserted at that location. This in turn breaks | |
2570 | target_read_memory which depends on these buffers when | |
2571 | a memory read is requested at the breakpoint location: | |
2572 | Once the target_info has been wiped, we fail to see that | |
2573 | we have a breakpoint inserted at that address and thus | |
2574 | read the breakpoint instead of returning the data saved in | |
2575 | the breakpoint location's shadow contents. */ | |
35df4500 TJB |
2576 | bl->target_info.placed_address = bl->address; |
2577 | bl->target_info.placed_address_space = bl->pspace->aspace; | |
f1310107 | 2578 | bl->target_info.length = bl->length; |
8181d85f | 2579 | |
b775012e LM |
2580 | /* When working with target-side conditions, we must pass all the conditions |
2581 | for the same breakpoint address down to the target since GDB will not | |
2582 | insert those locations. With a list of breakpoint conditions, the target | |
2583 | can decide when to stop and notify GDB. */ | |
2584 | ||
2585 | if (is_breakpoint (bl->owner)) | |
2586 | { | |
2587 | build_target_condition_list (bl); | |
d3ce09f5 SS |
2588 | build_target_command_list (bl); |
2589 | /* Reset the modification marker. */ | |
b775012e LM |
2590 | bl->needs_update = 0; |
2591 | } | |
2592 | ||
35df4500 TJB |
2593 | if (bl->loc_type == bp_loc_software_breakpoint |
2594 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
879bfdc2 | 2595 | { |
35df4500 | 2596 | if (bl->owner->type != bp_hardware_breakpoint) |
765dc015 VP |
2597 | { |
2598 | /* If the explicitly specified breakpoint type | |
2599 | is not hardware breakpoint, check the memory map to see | |
2600 | if the breakpoint address is in read only memory or not. | |
4a64f543 | 2601 | |
765dc015 VP |
2602 | Two important cases are: |
2603 | - location type is not hardware breakpoint, memory | |
2604 | is readonly. We change the type of the location to | |
2605 | hardware breakpoint. | |
4a64f543 MS |
2606 | - location type is hardware breakpoint, memory is |
2607 | read-write. This means we've previously made the | |
2608 | location hardware one, but then the memory map changed, | |
2609 | so we undo. | |
765dc015 | 2610 | |
4a64f543 MS |
2611 | When breakpoints are removed, remove_breakpoints will use |
2612 | location types we've just set here, the only possible | |
2613 | problem is that memory map has changed during running | |
2614 | program, but it's not going to work anyway with current | |
2615 | gdb. */ | |
765dc015 | 2616 | struct mem_region *mr |
35df4500 | 2617 | = lookup_mem_region (bl->target_info.placed_address); |
765dc015 VP |
2618 | |
2619 | if (mr) | |
2620 | { | |
2621 | if (automatic_hardware_breakpoints) | |
2622 | { | |
765dc015 VP |
2623 | enum bp_loc_type new_type; |
2624 | ||
2625 | if (mr->attrib.mode != MEM_RW) | |
2626 | new_type = bp_loc_hardware_breakpoint; | |
2627 | else | |
2628 | new_type = bp_loc_software_breakpoint; | |
2629 | ||
35df4500 | 2630 | if (new_type != bl->loc_type) |
765dc015 VP |
2631 | { |
2632 | static int said = 0; | |
cc59ec59 | 2633 | |
35df4500 | 2634 | bl->loc_type = new_type; |
765dc015 VP |
2635 | if (!said) |
2636 | { | |
3e43a32a MS |
2637 | fprintf_filtered (gdb_stdout, |
2638 | _("Note: automatically using " | |
2639 | "hardware breakpoints for " | |
2640 | "read-only addresses.\n")); | |
765dc015 VP |
2641 | said = 1; |
2642 | } | |
2643 | } | |
2644 | } | |
35df4500 | 2645 | else if (bl->loc_type == bp_loc_software_breakpoint |
765dc015 | 2646 | && mr->attrib.mode != MEM_RW) |
3e43a32a MS |
2647 | warning (_("cannot set software breakpoint " |
2648 | "at readonly address %s"), | |
35df4500 | 2649 | paddress (bl->gdbarch, bl->address)); |
765dc015 VP |
2650 | } |
2651 | } | |
2652 | ||
879bfdc2 DJ |
2653 | /* First check to see if we have to handle an overlay. */ |
2654 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
2655 | || bl->section == NULL |
2656 | || !(section_is_overlay (bl->section))) | |
879bfdc2 DJ |
2657 | { |
2658 | /* No overlay handling: just set the breakpoint. */ | |
dd61ec5c MW |
2659 | TRY_CATCH (e, RETURN_MASK_ALL) |
2660 | { | |
0000e5cc PA |
2661 | int val; |
2662 | ||
dd61ec5c | 2663 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2664 | if (val) |
2665 | bp_err = GENERIC_ERROR; | |
dd61ec5c MW |
2666 | } |
2667 | if (e.reason < 0) | |
2668 | { | |
0000e5cc PA |
2669 | bp_err = e.error; |
2670 | bp_err_message = e.message; | |
dd61ec5c | 2671 | } |
879bfdc2 DJ |
2672 | } |
2673 | else | |
2674 | { | |
4a64f543 | 2675 | /* This breakpoint is in an overlay section. |
879bfdc2 DJ |
2676 | Shall we set a breakpoint at the LMA? */ |
2677 | if (!overlay_events_enabled) | |
2678 | { | |
2679 | /* Yes -- overlay event support is not active, | |
2680 | so we must try to set a breakpoint at the LMA. | |
2681 | This will not work for a hardware breakpoint. */ | |
35df4500 | 2682 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
8a3fe4f8 | 2683 | warning (_("hardware breakpoint %d not supported in overlay!"), |
35df4500 | 2684 | bl->owner->number); |
879bfdc2 DJ |
2685 | else |
2686 | { | |
35df4500 TJB |
2687 | CORE_ADDR addr = overlay_unmapped_address (bl->address, |
2688 | bl->section); | |
879bfdc2 | 2689 | /* Set a software (trap) breakpoint at the LMA. */ |
35df4500 TJB |
2690 | bl->overlay_target_info = bl->target_info; |
2691 | bl->overlay_target_info.placed_address = addr; | |
0000e5cc PA |
2692 | |
2693 | /* No overlay handling: just set the breakpoint. */ | |
2694 | TRY_CATCH (e, RETURN_MASK_ALL) | |
2695 | { | |
2696 | int val; | |
2697 | ||
2698 | val = target_insert_breakpoint (bl->gdbarch, | |
2699 | &bl->overlay_target_info); | |
2700 | if (val) | |
2701 | bp_err = GENERIC_ERROR; | |
2702 | } | |
2703 | if (e.reason < 0) | |
2704 | { | |
2705 | bp_err = e.error; | |
2706 | bp_err_message = e.message; | |
2707 | } | |
2708 | ||
2709 | if (bp_err != GDB_NO_ERROR) | |
99361f52 | 2710 | fprintf_unfiltered (tmp_error_stream, |
3e43a32a MS |
2711 | "Overlay breakpoint %d " |
2712 | "failed: in ROM?\n", | |
35df4500 | 2713 | bl->owner->number); |
879bfdc2 DJ |
2714 | } |
2715 | } | |
2716 | /* Shall we set a breakpoint at the VMA? */ | |
35df4500 | 2717 | if (section_is_mapped (bl->section)) |
879bfdc2 DJ |
2718 | { |
2719 | /* Yes. This overlay section is mapped into memory. */ | |
dd61ec5c MW |
2720 | TRY_CATCH (e, RETURN_MASK_ALL) |
2721 | { | |
0000e5cc PA |
2722 | int val; |
2723 | ||
dd61ec5c | 2724 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2725 | if (val) |
2726 | bp_err = GENERIC_ERROR; | |
dd61ec5c MW |
2727 | } |
2728 | if (e.reason < 0) | |
2729 | { | |
0000e5cc PA |
2730 | bp_err = e.error; |
2731 | bp_err_message = e.message; | |
dd61ec5c | 2732 | } |
879bfdc2 DJ |
2733 | } |
2734 | else | |
2735 | { | |
2736 | /* No. This breakpoint will not be inserted. | |
2737 | No error, but do not mark the bp as 'inserted'. */ | |
2738 | return 0; | |
2739 | } | |
2740 | } | |
2741 | ||
0000e5cc | 2742 | if (bp_err != GDB_NO_ERROR) |
879bfdc2 DJ |
2743 | { |
2744 | /* Can't set the breakpoint. */ | |
0000e5cc PA |
2745 | |
2746 | /* In some cases, we might not be able to insert a | |
2747 | breakpoint in a shared library that has already been | |
2748 | removed, but we have not yet processed the shlib unload | |
2749 | event. Unfortunately, some targets that implement | |
076855f9 PA |
2750 | breakpoint insertion themselves can't tell why the |
2751 | breakpoint insertion failed (e.g., the remote target | |
2752 | doesn't define error codes), so we must treat generic | |
2753 | errors as memory errors. */ | |
0000e5cc | 2754 | if ((bp_err == GENERIC_ERROR || bp_err == MEMORY_ERROR) |
076855f9 | 2755 | && bl->loc_type == bp_loc_software_breakpoint |
08351840 | 2756 | && (solib_name_from_address (bl->pspace, bl->address) |
d03de421 PA |
2757 | || shared_objfile_contains_address_p (bl->pspace, |
2758 | bl->address))) | |
879bfdc2 | 2759 | { |
4a64f543 | 2760 | /* See also: disable_breakpoints_in_shlibs. */ |
35df4500 | 2761 | bl->shlib_disabled = 1; |
8d3788bd | 2762 | observer_notify_breakpoint_modified (bl->owner); |
3fbb6ffa TJB |
2763 | if (!*disabled_breaks) |
2764 | { | |
2765 | fprintf_unfiltered (tmp_error_stream, | |
2766 | "Cannot insert breakpoint %d.\n", | |
2767 | bl->owner->number); | |
2768 | fprintf_unfiltered (tmp_error_stream, | |
2769 | "Temporarily disabling shared " | |
2770 | "library breakpoints:\n"); | |
2771 | } | |
2772 | *disabled_breaks = 1; | |
879bfdc2 | 2773 | fprintf_unfiltered (tmp_error_stream, |
35df4500 | 2774 | "breakpoint #%d\n", bl->owner->number); |
0000e5cc | 2775 | return 0; |
879bfdc2 DJ |
2776 | } |
2777 | else | |
879bfdc2 | 2778 | { |
35df4500 | 2779 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
879bfdc2 | 2780 | { |
0000e5cc PA |
2781 | *hw_breakpoint_error = 1; |
2782 | *hw_bp_error_explained_already = bp_err_message != NULL; | |
dd61ec5c MW |
2783 | fprintf_unfiltered (tmp_error_stream, |
2784 | "Cannot insert hardware breakpoint %d%s", | |
0000e5cc PA |
2785 | bl->owner->number, bp_err_message ? ":" : ".\n"); |
2786 | if (bp_err_message != NULL) | |
2787 | fprintf_unfiltered (tmp_error_stream, "%s.\n", bp_err_message); | |
879bfdc2 DJ |
2788 | } |
2789 | else | |
2790 | { | |
0000e5cc PA |
2791 | if (bp_err_message == NULL) |
2792 | { | |
2793 | char *message | |
2794 | = memory_error_message (TARGET_XFER_E_IO, | |
2795 | bl->gdbarch, bl->address); | |
2796 | struct cleanup *old_chain = make_cleanup (xfree, message); | |
2797 | ||
2798 | fprintf_unfiltered (tmp_error_stream, | |
2799 | "Cannot insert breakpoint %d.\n" | |
2800 | "%s\n", | |
2801 | bl->owner->number, message); | |
2802 | do_cleanups (old_chain); | |
2803 | } | |
2804 | else | |
2805 | { | |
2806 | fprintf_unfiltered (tmp_error_stream, | |
2807 | "Cannot insert breakpoint %d: %s\n", | |
2808 | bl->owner->number, | |
2809 | bp_err_message); | |
2810 | } | |
879bfdc2 | 2811 | } |
0000e5cc | 2812 | return 1; |
879bfdc2 DJ |
2813 | |
2814 | } | |
2815 | } | |
2816 | else | |
35df4500 | 2817 | bl->inserted = 1; |
879bfdc2 | 2818 | |
0000e5cc | 2819 | return 0; |
879bfdc2 DJ |
2820 | } |
2821 | ||
35df4500 | 2822 | else if (bl->loc_type == bp_loc_hardware_watchpoint |
879bfdc2 | 2823 | /* NOTE drow/2003-09-08: This state only exists for removing |
4a64f543 | 2824 | watchpoints. It's not clear that it's necessary... */ |
35df4500 | 2825 | && bl->owner->disposition != disp_del_at_next_stop) |
879bfdc2 | 2826 | { |
0000e5cc PA |
2827 | int val; |
2828 | ||
77b06cd7 TJB |
2829 | gdb_assert (bl->owner->ops != NULL |
2830 | && bl->owner->ops->insert_location != NULL); | |
2831 | ||
2832 | val = bl->owner->ops->insert_location (bl); | |
85d721b8 PA |
2833 | |
2834 | /* If trying to set a read-watchpoint, and it turns out it's not | |
2835 | supported, try emulating one with an access watchpoint. */ | |
35df4500 | 2836 | if (val == 1 && bl->watchpoint_type == hw_read) |
85d721b8 PA |
2837 | { |
2838 | struct bp_location *loc, **loc_temp; | |
2839 | ||
2840 | /* But don't try to insert it, if there's already another | |
2841 | hw_access location that would be considered a duplicate | |
2842 | of this one. */ | |
2843 | ALL_BP_LOCATIONS (loc, loc_temp) | |
35df4500 | 2844 | if (loc != bl |
85d721b8 | 2845 | && loc->watchpoint_type == hw_access |
35df4500 | 2846 | && watchpoint_locations_match (bl, loc)) |
85d721b8 | 2847 | { |
35df4500 TJB |
2848 | bl->duplicate = 1; |
2849 | bl->inserted = 1; | |
2850 | bl->target_info = loc->target_info; | |
2851 | bl->watchpoint_type = hw_access; | |
85d721b8 PA |
2852 | val = 0; |
2853 | break; | |
2854 | } | |
2855 | ||
2856 | if (val == 1) | |
2857 | { | |
77b06cd7 TJB |
2858 | bl->watchpoint_type = hw_access; |
2859 | val = bl->owner->ops->insert_location (bl); | |
2860 | ||
2861 | if (val) | |
2862 | /* Back to the original value. */ | |
2863 | bl->watchpoint_type = hw_read; | |
85d721b8 PA |
2864 | } |
2865 | } | |
2866 | ||
35df4500 | 2867 | bl->inserted = (val == 0); |
879bfdc2 DJ |
2868 | } |
2869 | ||
35df4500 | 2870 | else if (bl->owner->type == bp_catchpoint) |
879bfdc2 | 2871 | { |
0000e5cc PA |
2872 | int val; |
2873 | ||
77b06cd7 TJB |
2874 | gdb_assert (bl->owner->ops != NULL |
2875 | && bl->owner->ops->insert_location != NULL); | |
2876 | ||
2877 | val = bl->owner->ops->insert_location (bl); | |
2878 | if (val) | |
2879 | { | |
2880 | bl->owner->enable_state = bp_disabled; | |
2881 | ||
2882 | if (val == 1) | |
2883 | warning (_("\ | |
2884 | Error inserting catchpoint %d: Your system does not support this type\n\ | |
2885 | of catchpoint."), bl->owner->number); | |
2886 | else | |
2887 | warning (_("Error inserting catchpoint %d."), bl->owner->number); | |
2888 | } | |
2889 | ||
2890 | bl->inserted = (val == 0); | |
1640b821 DJ |
2891 | |
2892 | /* We've already printed an error message if there was a problem | |
2893 | inserting this catchpoint, and we've disabled the catchpoint, | |
2894 | so just return success. */ | |
2895 | return 0; | |
879bfdc2 DJ |
2896 | } |
2897 | ||
2898 | return 0; | |
2899 | } | |
2900 | ||
6c95b8df PA |
2901 | /* This function is called when program space PSPACE is about to be |
2902 | deleted. It takes care of updating breakpoints to not reference | |
2903 | PSPACE anymore. */ | |
2904 | ||
2905 | void | |
2906 | breakpoint_program_space_exit (struct program_space *pspace) | |
2907 | { | |
2908 | struct breakpoint *b, *b_temp; | |
876fa593 | 2909 | struct bp_location *loc, **loc_temp; |
6c95b8df PA |
2910 | |
2911 | /* Remove any breakpoint that was set through this program space. */ | |
2912 | ALL_BREAKPOINTS_SAFE (b, b_temp) | |
2913 | { | |
2914 | if (b->pspace == pspace) | |
2915 | delete_breakpoint (b); | |
2916 | } | |
2917 | ||
2918 | /* Breakpoints set through other program spaces could have locations | |
2919 | bound to PSPACE as well. Remove those. */ | |
876fa593 | 2920 | ALL_BP_LOCATIONS (loc, loc_temp) |
6c95b8df PA |
2921 | { |
2922 | struct bp_location *tmp; | |
2923 | ||
2924 | if (loc->pspace == pspace) | |
2925 | { | |
2bdf28a0 | 2926 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
6c95b8df PA |
2927 | if (loc->owner->loc == loc) |
2928 | loc->owner->loc = loc->next; | |
2929 | else | |
2930 | for (tmp = loc->owner->loc; tmp->next != NULL; tmp = tmp->next) | |
2931 | if (tmp->next == loc) | |
2932 | { | |
2933 | tmp->next = loc->next; | |
2934 | break; | |
2935 | } | |
2936 | } | |
2937 | } | |
2938 | ||
2939 | /* Now update the global location list to permanently delete the | |
2940 | removed locations above. */ | |
44702360 | 2941 | update_global_location_list (UGLL_DONT_INSERT); |
6c95b8df PA |
2942 | } |
2943 | ||
74960c60 VP |
2944 | /* Make sure all breakpoints are inserted in inferior. |
2945 | Throws exception on any error. | |
2946 | A breakpoint that is already inserted won't be inserted | |
2947 | again, so calling this function twice is safe. */ | |
2948 | void | |
2949 | insert_breakpoints (void) | |
2950 | { | |
2951 | struct breakpoint *bpt; | |
2952 | ||
2953 | ALL_BREAKPOINTS (bpt) | |
2954 | if (is_hardware_watchpoint (bpt)) | |
3a5c3e22 PA |
2955 | { |
2956 | struct watchpoint *w = (struct watchpoint *) bpt; | |
2957 | ||
2958 | update_watchpoint (w, 0 /* don't reparse. */); | |
2959 | } | |
74960c60 | 2960 | |
04086b45 PA |
2961 | /* Updating watchpoints creates new locations, so update the global |
2962 | location list. Explicitly tell ugll to insert locations and | |
2963 | ignore breakpoints_always_inserted_mode. */ | |
2964 | update_global_location_list (UGLL_INSERT); | |
74960c60 VP |
2965 | } |
2966 | ||
20388dd6 YQ |
2967 | /* Invoke CALLBACK for each of bp_location. */ |
2968 | ||
2969 | void | |
2970 | iterate_over_bp_locations (walk_bp_location_callback callback) | |
2971 | { | |
2972 | struct bp_location *loc, **loc_tmp; | |
2973 | ||
2974 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
2975 | { | |
2976 | callback (loc, NULL); | |
2977 | } | |
2978 | } | |
2979 | ||
b775012e LM |
2980 | /* This is used when we need to synch breakpoint conditions between GDB and the |
2981 | target. It is the case with deleting and disabling of breakpoints when using | |
2982 | always-inserted mode. */ | |
2983 | ||
2984 | static void | |
2985 | update_inserted_breakpoint_locations (void) | |
2986 | { | |
2987 | struct bp_location *bl, **blp_tmp; | |
2988 | int error_flag = 0; | |
2989 | int val = 0; | |
2990 | int disabled_breaks = 0; | |
2991 | int hw_breakpoint_error = 0; | |
dd61ec5c | 2992 | int hw_bp_details_reported = 0; |
b775012e LM |
2993 | |
2994 | struct ui_file *tmp_error_stream = mem_fileopen (); | |
2995 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); | |
2996 | ||
2997 | /* Explicitly mark the warning -- this will only be printed if | |
2998 | there was an error. */ | |
2999 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
3000 | ||
3001 | save_current_space_and_thread (); | |
3002 | ||
3003 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
3004 | { | |
3005 | /* We only want to update software breakpoints and hardware | |
3006 | breakpoints. */ | |
3007 | if (!is_breakpoint (bl->owner)) | |
3008 | continue; | |
3009 | ||
3010 | /* We only want to update locations that are already inserted | |
3011 | and need updating. This is to avoid unwanted insertion during | |
3012 | deletion of breakpoints. */ | |
3013 | if (!bl->inserted || (bl->inserted && !bl->needs_update)) | |
3014 | continue; | |
3015 | ||
3016 | switch_to_program_space_and_thread (bl->pspace); | |
3017 | ||
3018 | /* For targets that support global breakpoints, there's no need | |
3019 | to select an inferior to insert breakpoint to. In fact, even | |
3020 | if we aren't attached to any process yet, we should still | |
3021 | insert breakpoints. */ | |
f5656ead | 3022 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
b775012e LM |
3023 | && ptid_equal (inferior_ptid, null_ptid)) |
3024 | continue; | |
3025 | ||
3026 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, | |
dd61ec5c | 3027 | &hw_breakpoint_error, &hw_bp_details_reported); |
b775012e LM |
3028 | if (val) |
3029 | error_flag = val; | |
3030 | } | |
3031 | ||
3032 | if (error_flag) | |
3033 | { | |
3034 | target_terminal_ours_for_output (); | |
3035 | error_stream (tmp_error_stream); | |
3036 | } | |
3037 | ||
3038 | do_cleanups (cleanups); | |
3039 | } | |
3040 | ||
c30eee59 | 3041 | /* Used when starting or continuing the program. */ |
c906108c | 3042 | |
74960c60 VP |
3043 | static void |
3044 | insert_breakpoint_locations (void) | |
c906108c | 3045 | { |
a5606eee | 3046 | struct breakpoint *bpt; |
35df4500 | 3047 | struct bp_location *bl, **blp_tmp; |
eacd795a | 3048 | int error_flag = 0; |
c906108c | 3049 | int val = 0; |
3fbb6ffa | 3050 | int disabled_breaks = 0; |
81d0cc19 | 3051 | int hw_breakpoint_error = 0; |
dd61ec5c | 3052 | int hw_bp_error_explained_already = 0; |
c906108c | 3053 | |
81d0cc19 | 3054 | struct ui_file *tmp_error_stream = mem_fileopen (); |
f7545552 | 3055 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); |
74960c60 | 3056 | |
81d0cc19 GS |
3057 | /* Explicitly mark the warning -- this will only be printed if |
3058 | there was an error. */ | |
3059 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
6c95b8df PA |
3060 | |
3061 | save_current_space_and_thread (); | |
3062 | ||
35df4500 | 3063 | ALL_BP_LOCATIONS (bl, blp_tmp) |
879bfdc2 | 3064 | { |
b775012e | 3065 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
3066 | continue; |
3067 | ||
4a64f543 MS |
3068 | /* There is no point inserting thread-specific breakpoints if |
3069 | the thread no longer exists. ALL_BP_LOCATIONS bp_location | |
3070 | has BL->OWNER always non-NULL. */ | |
35df4500 TJB |
3071 | if (bl->owner->thread != -1 |
3072 | && !valid_thread_id (bl->owner->thread)) | |
f365de73 AS |
3073 | continue; |
3074 | ||
35df4500 | 3075 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df PA |
3076 | |
3077 | /* For targets that support global breakpoints, there's no need | |
3078 | to select an inferior to insert breakpoint to. In fact, even | |
3079 | if we aren't attached to any process yet, we should still | |
3080 | insert breakpoints. */ | |
f5656ead | 3081 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
3082 | && ptid_equal (inferior_ptid, null_ptid)) |
3083 | continue; | |
3084 | ||
3fbb6ffa | 3085 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, |
dd61ec5c | 3086 | &hw_breakpoint_error, &hw_bp_error_explained_already); |
879bfdc2 | 3087 | if (val) |
eacd795a | 3088 | error_flag = val; |
879bfdc2 | 3089 | } |
c906108c | 3090 | |
4a64f543 MS |
3091 | /* If we failed to insert all locations of a watchpoint, remove |
3092 | them, as half-inserted watchpoint is of limited use. */ | |
a5606eee VP |
3093 | ALL_BREAKPOINTS (bpt) |
3094 | { | |
3095 | int some_failed = 0; | |
3096 | struct bp_location *loc; | |
3097 | ||
3098 | if (!is_hardware_watchpoint (bpt)) | |
3099 | continue; | |
3100 | ||
d6b74ac4 | 3101 | if (!breakpoint_enabled (bpt)) |
a5606eee | 3102 | continue; |
74960c60 VP |
3103 | |
3104 | if (bpt->disposition == disp_del_at_next_stop) | |
3105 | continue; | |
a5606eee VP |
3106 | |
3107 | for (loc = bpt->loc; loc; loc = loc->next) | |
56710373 | 3108 | if (!loc->inserted && should_be_inserted (loc)) |
a5606eee VP |
3109 | { |
3110 | some_failed = 1; | |
3111 | break; | |
3112 | } | |
3113 | if (some_failed) | |
3114 | { | |
3115 | for (loc = bpt->loc; loc; loc = loc->next) | |
3116 | if (loc->inserted) | |
3117 | remove_breakpoint (loc, mark_uninserted); | |
3118 | ||
3119 | hw_breakpoint_error = 1; | |
3120 | fprintf_unfiltered (tmp_error_stream, | |
3121 | "Could not insert hardware watchpoint %d.\n", | |
3122 | bpt->number); | |
eacd795a | 3123 | error_flag = -1; |
a5606eee VP |
3124 | } |
3125 | } | |
3126 | ||
eacd795a | 3127 | if (error_flag) |
81d0cc19 GS |
3128 | { |
3129 | /* If a hardware breakpoint or watchpoint was inserted, add a | |
3130 | message about possibly exhausted resources. */ | |
dd61ec5c | 3131 | if (hw_breakpoint_error && !hw_bp_error_explained_already) |
81d0cc19 | 3132 | { |
c6510018 MS |
3133 | fprintf_unfiltered (tmp_error_stream, |
3134 | "Could not insert hardware breakpoints:\n\ | |
3135 | You may have requested too many hardware breakpoints/watchpoints.\n"); | |
81d0cc19 | 3136 | } |
81d0cc19 GS |
3137 | target_terminal_ours_for_output (); |
3138 | error_stream (tmp_error_stream); | |
3139 | } | |
f7545552 TT |
3140 | |
3141 | do_cleanups (cleanups); | |
c906108c SS |
3142 | } |
3143 | ||
c30eee59 TJB |
3144 | /* Used when the program stops. |
3145 | Returns zero if successful, or non-zero if there was a problem | |
3146 | removing a breakpoint location. */ | |
3147 | ||
c906108c | 3148 | int |
fba45db2 | 3149 | remove_breakpoints (void) |
c906108c | 3150 | { |
35df4500 | 3151 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3152 | int val = 0; |
c906108c | 3153 | |
35df4500 | 3154 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3155 | { |
1e4d1764 | 3156 | if (bl->inserted && !is_tracepoint (bl->owner)) |
35df4500 | 3157 | val |= remove_breakpoint (bl, mark_uninserted); |
c5aa993b | 3158 | } |
3a1bae8e | 3159 | return val; |
c906108c SS |
3160 | } |
3161 | ||
49fa26b0 PA |
3162 | /* When a thread exits, remove breakpoints that are related to |
3163 | that thread. */ | |
3164 | ||
3165 | static void | |
3166 | remove_threaded_breakpoints (struct thread_info *tp, int silent) | |
3167 | { | |
3168 | struct breakpoint *b, *b_tmp; | |
3169 | ||
3170 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
3171 | { | |
96181529 | 3172 | if (b->thread == tp->num && user_breakpoint_p (b)) |
49fa26b0 PA |
3173 | { |
3174 | b->disposition = disp_del_at_next_stop; | |
3175 | ||
3176 | printf_filtered (_("\ | |
46ecd527 | 3177 | Thread-specific breakpoint %d deleted - thread %d no longer in the thread list.\n"), |
49fa26b0 PA |
3178 | b->number, tp->num); |
3179 | ||
3180 | /* Hide it from the user. */ | |
3181 | b->number = 0; | |
3182 | } | |
3183 | } | |
3184 | } | |
3185 | ||
6c95b8df PA |
3186 | /* Remove breakpoints of process PID. */ |
3187 | ||
3188 | int | |
3189 | remove_breakpoints_pid (int pid) | |
3190 | { | |
35df4500 | 3191 | struct bp_location *bl, **blp_tmp; |
6c95b8df PA |
3192 | int val; |
3193 | struct inferior *inf = find_inferior_pid (pid); | |
3194 | ||
35df4500 | 3195 | ALL_BP_LOCATIONS (bl, blp_tmp) |
6c95b8df | 3196 | { |
35df4500 | 3197 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3198 | continue; |
3199 | ||
d3ce09f5 SS |
3200 | if (bl->owner->type == bp_dprintf) |
3201 | continue; | |
3202 | ||
35df4500 | 3203 | if (bl->inserted) |
6c95b8df | 3204 | { |
35df4500 | 3205 | val = remove_breakpoint (bl, mark_uninserted); |
6c95b8df PA |
3206 | if (val != 0) |
3207 | return val; | |
3208 | } | |
3209 | } | |
3210 | return 0; | |
3211 | } | |
3212 | ||
c906108c | 3213 | int |
fba45db2 | 3214 | reattach_breakpoints (int pid) |
c906108c | 3215 | { |
6c95b8df | 3216 | struct cleanup *old_chain; |
35df4500 | 3217 | struct bp_location *bl, **blp_tmp; |
c906108c | 3218 | int val; |
86b887df | 3219 | struct ui_file *tmp_error_stream; |
dd61ec5c | 3220 | int dummy1 = 0, dummy2 = 0, dummy3 = 0; |
6c95b8df PA |
3221 | struct inferior *inf; |
3222 | struct thread_info *tp; | |
3223 | ||
3224 | tp = any_live_thread_of_process (pid); | |
3225 | if (tp == NULL) | |
3226 | return 1; | |
3227 | ||
3228 | inf = find_inferior_pid (pid); | |
3229 | old_chain = save_inferior_ptid (); | |
3230 | ||
3231 | inferior_ptid = tp->ptid; | |
a4954f26 | 3232 | |
86b887df | 3233 | tmp_error_stream = mem_fileopen (); |
a4954f26 | 3234 | make_cleanup_ui_file_delete (tmp_error_stream); |
c906108c | 3235 | |
35df4500 | 3236 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3237 | { |
35df4500 | 3238 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3239 | continue; |
3240 | ||
35df4500 | 3241 | if (bl->inserted) |
c5aa993b | 3242 | { |
35df4500 | 3243 | bl->inserted = 0; |
dd61ec5c | 3244 | val = insert_bp_location (bl, tmp_error_stream, &dummy1, &dummy2, &dummy3); |
c5aa993b JM |
3245 | if (val != 0) |
3246 | { | |
ce696e05 | 3247 | do_cleanups (old_chain); |
c5aa993b JM |
3248 | return val; |
3249 | } | |
3250 | } | |
3251 | } | |
ce696e05 | 3252 | do_cleanups (old_chain); |
c906108c SS |
3253 | return 0; |
3254 | } | |
3255 | ||
e58b0e63 PA |
3256 | static int internal_breakpoint_number = -1; |
3257 | ||
84f4c1fe PM |
3258 | /* Set the breakpoint number of B, depending on the value of INTERNAL. |
3259 | If INTERNAL is non-zero, the breakpoint number will be populated | |
3260 | from internal_breakpoint_number and that variable decremented. | |
e5dd4106 | 3261 | Otherwise the breakpoint number will be populated from |
84f4c1fe PM |
3262 | breakpoint_count and that value incremented. Internal breakpoints |
3263 | do not set the internal var bpnum. */ | |
3264 | static void | |
3265 | set_breakpoint_number (int internal, struct breakpoint *b) | |
3266 | { | |
3267 | if (internal) | |
3268 | b->number = internal_breakpoint_number--; | |
3269 | else | |
3270 | { | |
3271 | set_breakpoint_count (breakpoint_count + 1); | |
3272 | b->number = breakpoint_count; | |
3273 | } | |
3274 | } | |
3275 | ||
e62c965a | 3276 | static struct breakpoint * |
a6d9a66e | 3277 | create_internal_breakpoint (struct gdbarch *gdbarch, |
06edf0c0 | 3278 | CORE_ADDR address, enum bptype type, |
c0a91b2b | 3279 | const struct breakpoint_ops *ops) |
e62c965a | 3280 | { |
e62c965a PP |
3281 | struct symtab_and_line sal; |
3282 | struct breakpoint *b; | |
3283 | ||
4a64f543 | 3284 | init_sal (&sal); /* Initialize to zeroes. */ |
e62c965a PP |
3285 | |
3286 | sal.pc = address; | |
3287 | sal.section = find_pc_overlay (sal.pc); | |
6c95b8df | 3288 | sal.pspace = current_program_space; |
e62c965a | 3289 | |
06edf0c0 | 3290 | b = set_raw_breakpoint (gdbarch, sal, type, ops); |
e62c965a PP |
3291 | b->number = internal_breakpoint_number--; |
3292 | b->disposition = disp_donttouch; | |
3293 | ||
3294 | return b; | |
3295 | } | |
3296 | ||
17450429 PP |
3297 | static const char *const longjmp_names[] = |
3298 | { | |
3299 | "longjmp", "_longjmp", "siglongjmp", "_siglongjmp" | |
3300 | }; | |
3301 | #define NUM_LONGJMP_NAMES ARRAY_SIZE(longjmp_names) | |
3302 | ||
3303 | /* Per-objfile data private to breakpoint.c. */ | |
3304 | struct breakpoint_objfile_data | |
3305 | { | |
3306 | /* Minimal symbol for "_ovly_debug_event" (if any). */ | |
3b7344d5 | 3307 | struct bound_minimal_symbol overlay_msym; |
17450429 PP |
3308 | |
3309 | /* Minimal symbol(s) for "longjmp", "siglongjmp", etc. (if any). */ | |
3b7344d5 | 3310 | struct bound_minimal_symbol longjmp_msym[NUM_LONGJMP_NAMES]; |
17450429 | 3311 | |
28106bc2 SDJ |
3312 | /* True if we have looked for longjmp probes. */ |
3313 | int longjmp_searched; | |
3314 | ||
3315 | /* SystemTap probe points for longjmp (if any). */ | |
3316 | VEC (probe_p) *longjmp_probes; | |
3317 | ||
17450429 | 3318 | /* Minimal symbol for "std::terminate()" (if any). */ |
3b7344d5 | 3319 | struct bound_minimal_symbol terminate_msym; |
17450429 PP |
3320 | |
3321 | /* Minimal symbol for "_Unwind_DebugHook" (if any). */ | |
3b7344d5 | 3322 | struct bound_minimal_symbol exception_msym; |
28106bc2 SDJ |
3323 | |
3324 | /* True if we have looked for exception probes. */ | |
3325 | int exception_searched; | |
3326 | ||
3327 | /* SystemTap probe points for unwinding (if any). */ | |
3328 | VEC (probe_p) *exception_probes; | |
17450429 PP |
3329 | }; |
3330 | ||
3331 | static const struct objfile_data *breakpoint_objfile_key; | |
3332 | ||
3333 | /* Minimal symbol not found sentinel. */ | |
3334 | static struct minimal_symbol msym_not_found; | |
3335 | ||
3336 | /* Returns TRUE if MSYM point to the "not found" sentinel. */ | |
3337 | ||
3338 | static int | |
3339 | msym_not_found_p (const struct minimal_symbol *msym) | |
3340 | { | |
3341 | return msym == &msym_not_found; | |
3342 | } | |
3343 | ||
3344 | /* Return per-objfile data needed by breakpoint.c. | |
3345 | Allocate the data if necessary. */ | |
3346 | ||
3347 | static struct breakpoint_objfile_data * | |
3348 | get_breakpoint_objfile_data (struct objfile *objfile) | |
3349 | { | |
3350 | struct breakpoint_objfile_data *bp_objfile_data; | |
3351 | ||
3352 | bp_objfile_data = objfile_data (objfile, breakpoint_objfile_key); | |
3353 | if (bp_objfile_data == NULL) | |
3354 | { | |
3355 | bp_objfile_data = obstack_alloc (&objfile->objfile_obstack, | |
3356 | sizeof (*bp_objfile_data)); | |
3357 | ||
3358 | memset (bp_objfile_data, 0, sizeof (*bp_objfile_data)); | |
3359 | set_objfile_data (objfile, breakpoint_objfile_key, bp_objfile_data); | |
3360 | } | |
3361 | return bp_objfile_data; | |
3362 | } | |
3363 | ||
28106bc2 SDJ |
3364 | static void |
3365 | free_breakpoint_probes (struct objfile *obj, void *data) | |
3366 | { | |
3367 | struct breakpoint_objfile_data *bp_objfile_data = data; | |
3368 | ||
3369 | VEC_free (probe_p, bp_objfile_data->longjmp_probes); | |
3370 | VEC_free (probe_p, bp_objfile_data->exception_probes); | |
3371 | } | |
3372 | ||
e62c965a | 3373 | static void |
af02033e | 3374 | create_overlay_event_breakpoint (void) |
e62c965a | 3375 | { |
69de3c6a | 3376 | struct objfile *objfile; |
af02033e | 3377 | const char *const func_name = "_ovly_debug_event"; |
e62c965a | 3378 | |
69de3c6a PP |
3379 | ALL_OBJFILES (objfile) |
3380 | { | |
3381 | struct breakpoint *b; | |
17450429 PP |
3382 | struct breakpoint_objfile_data *bp_objfile_data; |
3383 | CORE_ADDR addr; | |
69de3c6a | 3384 | |
17450429 PP |
3385 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3386 | ||
3b7344d5 | 3387 | if (msym_not_found_p (bp_objfile_data->overlay_msym.minsym)) |
17450429 PP |
3388 | continue; |
3389 | ||
3b7344d5 | 3390 | if (bp_objfile_data->overlay_msym.minsym == NULL) |
17450429 | 3391 | { |
3b7344d5 | 3392 | struct bound_minimal_symbol m; |
17450429 PP |
3393 | |
3394 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3395 | if (m.minsym == NULL) |
17450429 PP |
3396 | { |
3397 | /* Avoid future lookups in this objfile. */ | |
3b7344d5 | 3398 | bp_objfile_data->overlay_msym.minsym = &msym_not_found; |
17450429 PP |
3399 | continue; |
3400 | } | |
3401 | bp_objfile_data->overlay_msym = m; | |
3402 | } | |
e62c965a | 3403 | |
77e371c0 | 3404 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->overlay_msym); |
17450429 | 3405 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3406 | bp_overlay_event, |
3407 | &internal_breakpoint_ops); | |
69de3c6a | 3408 | b->addr_string = xstrdup (func_name); |
e62c965a | 3409 | |
69de3c6a PP |
3410 | if (overlay_debugging == ovly_auto) |
3411 | { | |
3412 | b->enable_state = bp_enabled; | |
3413 | overlay_events_enabled = 1; | |
3414 | } | |
3415 | else | |
3416 | { | |
3417 | b->enable_state = bp_disabled; | |
3418 | overlay_events_enabled = 0; | |
3419 | } | |
e62c965a | 3420 | } |
44702360 | 3421 | update_global_location_list (UGLL_MAY_INSERT); |
e62c965a PP |
3422 | } |
3423 | ||
0fd8e87f | 3424 | static void |
af02033e | 3425 | create_longjmp_master_breakpoint (void) |
0fd8e87f | 3426 | { |
6c95b8df | 3427 | struct program_space *pspace; |
6c95b8df PA |
3428 | struct cleanup *old_chain; |
3429 | ||
3430 | old_chain = save_current_program_space (); | |
0fd8e87f | 3431 | |
6c95b8df | 3432 | ALL_PSPACES (pspace) |
af02033e PP |
3433 | { |
3434 | struct objfile *objfile; | |
3435 | ||
3436 | set_current_program_space (pspace); | |
3437 | ||
3438 | ALL_OBJFILES (objfile) | |
0fd8e87f | 3439 | { |
af02033e PP |
3440 | int i; |
3441 | struct gdbarch *gdbarch; | |
17450429 | 3442 | struct breakpoint_objfile_data *bp_objfile_data; |
0fd8e87f | 3443 | |
af02033e | 3444 | gdbarch = get_objfile_arch (objfile); |
0fd8e87f | 3445 | |
17450429 PP |
3446 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3447 | ||
28106bc2 SDJ |
3448 | if (!bp_objfile_data->longjmp_searched) |
3449 | { | |
25f9533e SDJ |
3450 | VEC (probe_p) *ret; |
3451 | ||
3452 | ret = find_probes_in_objfile (objfile, "libc", "longjmp"); | |
3453 | if (ret != NULL) | |
3454 | { | |
3455 | /* We are only interested in checking one element. */ | |
3456 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3457 | ||
3458 | if (!can_evaluate_probe_arguments (p)) | |
3459 | { | |
3460 | /* We cannot use the probe interface here, because it does | |
3461 | not know how to evaluate arguments. */ | |
3462 | VEC_free (probe_p, ret); | |
3463 | ret = NULL; | |
3464 | } | |
3465 | } | |
3466 | bp_objfile_data->longjmp_probes = ret; | |
28106bc2 SDJ |
3467 | bp_objfile_data->longjmp_searched = 1; |
3468 | } | |
3469 | ||
3470 | if (bp_objfile_data->longjmp_probes != NULL) | |
3471 | { | |
3472 | int i; | |
3473 | struct probe *probe; | |
3474 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3475 | ||
3476 | for (i = 0; | |
3477 | VEC_iterate (probe_p, | |
3478 | bp_objfile_data->longjmp_probes, | |
3479 | i, probe); | |
3480 | ++i) | |
3481 | { | |
3482 | struct breakpoint *b; | |
3483 | ||
729662a5 TT |
3484 | b = create_internal_breakpoint (gdbarch, |
3485 | get_probe_address (probe, | |
3486 | objfile), | |
28106bc2 SDJ |
3487 | bp_longjmp_master, |
3488 | &internal_breakpoint_ops); | |
3489 | b->addr_string = xstrdup ("-probe-stap libc:longjmp"); | |
3490 | b->enable_state = bp_disabled; | |
3491 | } | |
3492 | ||
3493 | continue; | |
3494 | } | |
3495 | ||
0569175e TSD |
3496 | if (!gdbarch_get_longjmp_target_p (gdbarch)) |
3497 | continue; | |
3498 | ||
17450429 | 3499 | for (i = 0; i < NUM_LONGJMP_NAMES; i++) |
af02033e PP |
3500 | { |
3501 | struct breakpoint *b; | |
af02033e | 3502 | const char *func_name; |
17450429 | 3503 | CORE_ADDR addr; |
6c95b8df | 3504 | |
3b7344d5 | 3505 | if (msym_not_found_p (bp_objfile_data->longjmp_msym[i].minsym)) |
af02033e | 3506 | continue; |
0fd8e87f | 3507 | |
17450429 | 3508 | func_name = longjmp_names[i]; |
3b7344d5 | 3509 | if (bp_objfile_data->longjmp_msym[i].minsym == NULL) |
17450429 | 3510 | { |
3b7344d5 | 3511 | struct bound_minimal_symbol m; |
17450429 PP |
3512 | |
3513 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3514 | if (m.minsym == NULL) |
17450429 PP |
3515 | { |
3516 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3517 | bp_objfile_data->longjmp_msym[i].minsym = &msym_not_found; |
17450429 PP |
3518 | continue; |
3519 | } | |
3520 | bp_objfile_data->longjmp_msym[i] = m; | |
3521 | } | |
3522 | ||
77e371c0 | 3523 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->longjmp_msym[i]); |
06edf0c0 PA |
3524 | b = create_internal_breakpoint (gdbarch, addr, bp_longjmp_master, |
3525 | &internal_breakpoint_ops); | |
af02033e PP |
3526 | b->addr_string = xstrdup (func_name); |
3527 | b->enable_state = bp_disabled; | |
3528 | } | |
0fd8e87f | 3529 | } |
af02033e | 3530 | } |
44702360 | 3531 | update_global_location_list (UGLL_MAY_INSERT); |
6c95b8df PA |
3532 | |
3533 | do_cleanups (old_chain); | |
0fd8e87f UW |
3534 | } |
3535 | ||
af02033e | 3536 | /* Create a master std::terminate breakpoint. */ |
aa7d318d | 3537 | static void |
af02033e | 3538 | create_std_terminate_master_breakpoint (void) |
aa7d318d TT |
3539 | { |
3540 | struct program_space *pspace; | |
aa7d318d | 3541 | struct cleanup *old_chain; |
af02033e | 3542 | const char *const func_name = "std::terminate()"; |
aa7d318d TT |
3543 | |
3544 | old_chain = save_current_program_space (); | |
3545 | ||
3546 | ALL_PSPACES (pspace) | |
17450429 PP |
3547 | { |
3548 | struct objfile *objfile; | |
3549 | CORE_ADDR addr; | |
3550 | ||
3551 | set_current_program_space (pspace); | |
3552 | ||
aa7d318d TT |
3553 | ALL_OBJFILES (objfile) |
3554 | { | |
3555 | struct breakpoint *b; | |
17450429 | 3556 | struct breakpoint_objfile_data *bp_objfile_data; |
aa7d318d | 3557 | |
17450429 | 3558 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
aa7d318d | 3559 | |
3b7344d5 | 3560 | if (msym_not_found_p (bp_objfile_data->terminate_msym.minsym)) |
17450429 PP |
3561 | continue; |
3562 | ||
3b7344d5 | 3563 | if (bp_objfile_data->terminate_msym.minsym == NULL) |
17450429 | 3564 | { |
3b7344d5 | 3565 | struct bound_minimal_symbol m; |
17450429 PP |
3566 | |
3567 | m = lookup_minimal_symbol (func_name, NULL, objfile); | |
3b7344d5 TT |
3568 | if (m.minsym == NULL || (MSYMBOL_TYPE (m.minsym) != mst_text |
3569 | && MSYMBOL_TYPE (m.minsym) != mst_file_text)) | |
17450429 PP |
3570 | { |
3571 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3572 | bp_objfile_data->terminate_msym.minsym = &msym_not_found; |
17450429 PP |
3573 | continue; |
3574 | } | |
3575 | bp_objfile_data->terminate_msym = m; | |
3576 | } | |
aa7d318d | 3577 | |
77e371c0 | 3578 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->terminate_msym); |
17450429 | 3579 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3580 | bp_std_terminate_master, |
3581 | &internal_breakpoint_ops); | |
aa7d318d TT |
3582 | b->addr_string = xstrdup (func_name); |
3583 | b->enable_state = bp_disabled; | |
3584 | } | |
17450429 PP |
3585 | } |
3586 | ||
44702360 | 3587 | update_global_location_list (UGLL_MAY_INSERT); |
aa7d318d TT |
3588 | |
3589 | do_cleanups (old_chain); | |
3590 | } | |
3591 | ||
186c406b TT |
3592 | /* Install a master breakpoint on the unwinder's debug hook. */ |
3593 | ||
70221824 | 3594 | static void |
186c406b TT |
3595 | create_exception_master_breakpoint (void) |
3596 | { | |
3597 | struct objfile *objfile; | |
17450429 | 3598 | const char *const func_name = "_Unwind_DebugHook"; |
186c406b TT |
3599 | |
3600 | ALL_OBJFILES (objfile) | |
3601 | { | |
17450429 PP |
3602 | struct breakpoint *b; |
3603 | struct gdbarch *gdbarch; | |
3604 | struct breakpoint_objfile_data *bp_objfile_data; | |
3605 | CORE_ADDR addr; | |
3606 | ||
3607 | bp_objfile_data = get_breakpoint_objfile_data (objfile); | |
3608 | ||
28106bc2 SDJ |
3609 | /* We prefer the SystemTap probe point if it exists. */ |
3610 | if (!bp_objfile_data->exception_searched) | |
3611 | { | |
25f9533e SDJ |
3612 | VEC (probe_p) *ret; |
3613 | ||
3614 | ret = find_probes_in_objfile (objfile, "libgcc", "unwind"); | |
3615 | ||
3616 | if (ret != NULL) | |
3617 | { | |
3618 | /* We are only interested in checking one element. */ | |
3619 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3620 | ||
3621 | if (!can_evaluate_probe_arguments (p)) | |
3622 | { | |
3623 | /* We cannot use the probe interface here, because it does | |
3624 | not know how to evaluate arguments. */ | |
3625 | VEC_free (probe_p, ret); | |
3626 | ret = NULL; | |
3627 | } | |
3628 | } | |
3629 | bp_objfile_data->exception_probes = ret; | |
28106bc2 SDJ |
3630 | bp_objfile_data->exception_searched = 1; |
3631 | } | |
3632 | ||
3633 | if (bp_objfile_data->exception_probes != NULL) | |
3634 | { | |
3635 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3636 | int i; | |
3637 | struct probe *probe; | |
3638 | ||
3639 | for (i = 0; | |
3640 | VEC_iterate (probe_p, | |
3641 | bp_objfile_data->exception_probes, | |
3642 | i, probe); | |
3643 | ++i) | |
3644 | { | |
3645 | struct breakpoint *b; | |
3646 | ||
729662a5 TT |
3647 | b = create_internal_breakpoint (gdbarch, |
3648 | get_probe_address (probe, | |
3649 | objfile), | |
28106bc2 SDJ |
3650 | bp_exception_master, |
3651 | &internal_breakpoint_ops); | |
3652 | b->addr_string = xstrdup ("-probe-stap libgcc:unwind"); | |
3653 | b->enable_state = bp_disabled; | |
3654 | } | |
3655 | ||
3656 | continue; | |
3657 | } | |
3658 | ||
3659 | /* Otherwise, try the hook function. */ | |
3660 | ||
3b7344d5 | 3661 | if (msym_not_found_p (bp_objfile_data->exception_msym.minsym)) |
17450429 PP |
3662 | continue; |
3663 | ||
3664 | gdbarch = get_objfile_arch (objfile); | |
186c406b | 3665 | |
3b7344d5 | 3666 | if (bp_objfile_data->exception_msym.minsym == NULL) |
186c406b | 3667 | { |
3b7344d5 | 3668 | struct bound_minimal_symbol debug_hook; |
186c406b | 3669 | |
17450429 | 3670 | debug_hook = lookup_minimal_symbol (func_name, NULL, objfile); |
3b7344d5 | 3671 | if (debug_hook.minsym == NULL) |
17450429 | 3672 | { |
3b7344d5 | 3673 | bp_objfile_data->exception_msym.minsym = &msym_not_found; |
17450429 PP |
3674 | continue; |
3675 | } | |
3676 | ||
3677 | bp_objfile_data->exception_msym = debug_hook; | |
186c406b | 3678 | } |
17450429 | 3679 | |
77e371c0 | 3680 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->exception_msym); |
17450429 PP |
3681 | addr = gdbarch_convert_from_func_ptr_addr (gdbarch, addr, |
3682 | ¤t_target); | |
06edf0c0 PA |
3683 | b = create_internal_breakpoint (gdbarch, addr, bp_exception_master, |
3684 | &internal_breakpoint_ops); | |
17450429 PP |
3685 | b->addr_string = xstrdup (func_name); |
3686 | b->enable_state = bp_disabled; | |
186c406b TT |
3687 | } |
3688 | ||
44702360 | 3689 | update_global_location_list (UGLL_MAY_INSERT); |
186c406b TT |
3690 | } |
3691 | ||
c906108c | 3692 | void |
fba45db2 | 3693 | update_breakpoints_after_exec (void) |
c906108c | 3694 | { |
35df4500 | 3695 | struct breakpoint *b, *b_tmp; |
876fa593 | 3696 | struct bp_location *bploc, **bplocp_tmp; |
c906108c | 3697 | |
25b22b0a PA |
3698 | /* We're about to delete breakpoints from GDB's lists. If the |
3699 | INSERTED flag is true, GDB will try to lift the breakpoints by | |
3700 | writing the breakpoints' "shadow contents" back into memory. The | |
3701 | "shadow contents" are NOT valid after an exec, so GDB should not | |
3702 | do that. Instead, the target is responsible from marking | |
3703 | breakpoints out as soon as it detects an exec. We don't do that | |
3704 | here instead, because there may be other attempts to delete | |
3705 | breakpoints after detecting an exec and before reaching here. */ | |
876fa593 | 3706 | ALL_BP_LOCATIONS (bploc, bplocp_tmp) |
6c95b8df PA |
3707 | if (bploc->pspace == current_program_space) |
3708 | gdb_assert (!bploc->inserted); | |
c906108c | 3709 | |
35df4500 | 3710 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 3711 | { |
6c95b8df PA |
3712 | if (b->pspace != current_program_space) |
3713 | continue; | |
3714 | ||
4a64f543 | 3715 | /* Solib breakpoints must be explicitly reset after an exec(). */ |
c5aa993b JM |
3716 | if (b->type == bp_shlib_event) |
3717 | { | |
3718 | delete_breakpoint (b); | |
3719 | continue; | |
3720 | } | |
c906108c | 3721 | |
4a64f543 | 3722 | /* JIT breakpoints must be explicitly reset after an exec(). */ |
4efc6507 DE |
3723 | if (b->type == bp_jit_event) |
3724 | { | |
3725 | delete_breakpoint (b); | |
3726 | continue; | |
3727 | } | |
3728 | ||
1900040c | 3729 | /* Thread event breakpoints must be set anew after an exec(), |
0fd8e87f UW |
3730 | as must overlay event and longjmp master breakpoints. */ |
3731 | if (b->type == bp_thread_event || b->type == bp_overlay_event | |
186c406b TT |
3732 | || b->type == bp_longjmp_master || b->type == bp_std_terminate_master |
3733 | || b->type == bp_exception_master) | |
c4093a6a JM |
3734 | { |
3735 | delete_breakpoint (b); | |
3736 | continue; | |
3737 | } | |
3738 | ||
4a64f543 | 3739 | /* Step-resume breakpoints are meaningless after an exec(). */ |
2c03e5be | 3740 | if (b->type == bp_step_resume || b->type == bp_hp_step_resume) |
c5aa993b JM |
3741 | { |
3742 | delete_breakpoint (b); | |
3743 | continue; | |
3744 | } | |
3745 | ||
611c83ae PA |
3746 | /* Longjmp and longjmp-resume breakpoints are also meaningless |
3747 | after an exec. */ | |
186c406b | 3748 | if (b->type == bp_longjmp || b->type == bp_longjmp_resume |
e2e4d78b | 3749 | || b->type == bp_longjmp_call_dummy |
186c406b | 3750 | || b->type == bp_exception || b->type == bp_exception_resume) |
611c83ae PA |
3751 | { |
3752 | delete_breakpoint (b); | |
3753 | continue; | |
3754 | } | |
3755 | ||
ce78b96d JB |
3756 | if (b->type == bp_catchpoint) |
3757 | { | |
3758 | /* For now, none of the bp_catchpoint breakpoints need to | |
3759 | do anything at this point. In the future, if some of | |
3760 | the catchpoints need to something, we will need to add | |
3761 | a new method, and call this method from here. */ | |
3762 | continue; | |
3763 | } | |
3764 | ||
c5aa993b JM |
3765 | /* bp_finish is a special case. The only way we ought to be able |
3766 | to see one of these when an exec() has happened, is if the user | |
3767 | caught a vfork, and then said "finish". Ordinarily a finish just | |
3768 | carries them to the call-site of the current callee, by setting | |
3769 | a temporary bp there and resuming. But in this case, the finish | |
3770 | will carry them entirely through the vfork & exec. | |
3771 | ||
3772 | We don't want to allow a bp_finish to remain inserted now. But | |
3773 | we can't safely delete it, 'cause finish_command has a handle to | |
3774 | the bp on a bpstat, and will later want to delete it. There's a | |
3775 | chance (and I've seen it happen) that if we delete the bp_finish | |
3776 | here, that its storage will get reused by the time finish_command | |
3777 | gets 'round to deleting the "use to be a bp_finish" breakpoint. | |
3778 | We really must allow finish_command to delete a bp_finish. | |
3779 | ||
e5dd4106 | 3780 | In the absence of a general solution for the "how do we know |
53a5351d JM |
3781 | it's safe to delete something others may have handles to?" |
3782 | problem, what we'll do here is just uninsert the bp_finish, and | |
3783 | let finish_command delete it. | |
3784 | ||
3785 | (We know the bp_finish is "doomed" in the sense that it's | |
3786 | momentary, and will be deleted as soon as finish_command sees | |
3787 | the inferior stopped. So it doesn't matter that the bp's | |
3788 | address is probably bogus in the new a.out, unlike e.g., the | |
3789 | solib breakpoints.) */ | |
c5aa993b | 3790 | |
c5aa993b JM |
3791 | if (b->type == bp_finish) |
3792 | { | |
3793 | continue; | |
3794 | } | |
3795 | ||
3796 | /* Without a symbolic address, we have little hope of the | |
3797 | pre-exec() address meaning the same thing in the post-exec() | |
4a64f543 | 3798 | a.out. */ |
c5aa993b JM |
3799 | if (b->addr_string == NULL) |
3800 | { | |
3801 | delete_breakpoint (b); | |
3802 | continue; | |
3803 | } | |
c5aa993b | 3804 | } |
1900040c | 3805 | /* FIXME what about longjmp breakpoints? Re-create them here? */ |
af02033e PP |
3806 | create_overlay_event_breakpoint (); |
3807 | create_longjmp_master_breakpoint (); | |
3808 | create_std_terminate_master_breakpoint (); | |
186c406b | 3809 | create_exception_master_breakpoint (); |
c906108c SS |
3810 | } |
3811 | ||
3812 | int | |
d80ee84f | 3813 | detach_breakpoints (ptid_t ptid) |
c906108c | 3814 | { |
35df4500 | 3815 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3816 | int val = 0; |
ce696e05 | 3817 | struct cleanup *old_chain = save_inferior_ptid (); |
6c95b8df | 3818 | struct inferior *inf = current_inferior (); |
c5aa993b | 3819 | |
dfd4cc63 | 3820 | if (ptid_get_pid (ptid) == ptid_get_pid (inferior_ptid)) |
8a3fe4f8 | 3821 | error (_("Cannot detach breakpoints of inferior_ptid")); |
c5aa993b | 3822 | |
6c95b8df | 3823 | /* Set inferior_ptid; remove_breakpoint_1 uses this global. */ |
d80ee84f | 3824 | inferior_ptid = ptid; |
35df4500 | 3825 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3826 | { |
35df4500 | 3827 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3828 | continue; |
3829 | ||
bd9673a4 PW |
3830 | /* This function must physically remove breakpoints locations |
3831 | from the specified ptid, without modifying the breakpoint | |
3832 | package's state. Locations of type bp_loc_other are only | |
3833 | maintained at GDB side. So, there is no need to remove | |
3834 | these bp_loc_other locations. Moreover, removing these | |
3835 | would modify the breakpoint package's state. */ | |
3836 | if (bl->loc_type == bp_loc_other) | |
3837 | continue; | |
3838 | ||
35df4500 TJB |
3839 | if (bl->inserted) |
3840 | val |= remove_breakpoint_1 (bl, mark_inserted); | |
c5aa993b | 3841 | } |
d03285ec UW |
3842 | |
3843 | /* Detach single-step breakpoints as well. */ | |
3844 | detach_single_step_breakpoints (); | |
3845 | ||
ce696e05 | 3846 | do_cleanups (old_chain); |
3a1bae8e | 3847 | return val; |
c906108c SS |
3848 | } |
3849 | ||
35df4500 | 3850 | /* Remove the breakpoint location BL from the current address space. |
6c95b8df PA |
3851 | Note that this is used to detach breakpoints from a child fork. |
3852 | When we get here, the child isn't in the inferior list, and neither | |
3853 | do we have objects to represent its address space --- we should | |
35df4500 | 3854 | *not* look at bl->pspace->aspace here. */ |
6c95b8df | 3855 | |
c906108c | 3856 | static int |
35df4500 | 3857 | remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is) |
c906108c SS |
3858 | { |
3859 | int val; | |
c5aa993b | 3860 | |
35df4500 TJB |
3861 | /* BL is never in moribund_locations by our callers. */ |
3862 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 3863 | |
35df4500 | 3864 | if (bl->owner->enable_state == bp_permanent) |
c2c6d25f JM |
3865 | /* Permanent breakpoints cannot be inserted or removed. */ |
3866 | return 0; | |
3867 | ||
74960c60 VP |
3868 | /* The type of none suggests that owner is actually deleted. |
3869 | This should not ever happen. */ | |
35df4500 | 3870 | gdb_assert (bl->owner->type != bp_none); |
0bde7532 | 3871 | |
35df4500 TJB |
3872 | if (bl->loc_type == bp_loc_software_breakpoint |
3873 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
c906108c | 3874 | { |
c02f5703 MS |
3875 | /* "Normal" instruction breakpoint: either the standard |
3876 | trap-instruction bp (bp_breakpoint), or a | |
3877 | bp_hardware_breakpoint. */ | |
3878 | ||
3879 | /* First check to see if we have to handle an overlay. */ | |
3880 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
3881 | || bl->section == NULL |
3882 | || !(section_is_overlay (bl->section))) | |
c02f5703 MS |
3883 | { |
3884 | /* No overlay handling: just remove the breakpoint. */ | |
08351840 PA |
3885 | |
3886 | /* If we're trying to uninsert a memory breakpoint that we | |
3887 | know is set in a dynamic object that is marked | |
3888 | shlib_disabled, then either the dynamic object was | |
3889 | removed with "remove-symbol-file" or with | |
3890 | "nosharedlibrary". In the former case, we don't know | |
3891 | whether another dynamic object might have loaded over the | |
3892 | breakpoint's address -- the user might well let us know | |
3893 | about it next with add-symbol-file (the whole point of | |
d03de421 | 3894 | add-symbol-file is letting the user manually maintain a |
08351840 PA |
3895 | list of dynamically loaded objects). If we have the |
3896 | breakpoint's shadow memory, that is, this is a software | |
3897 | breakpoint managed by GDB, check whether the breakpoint | |
3898 | is still inserted in memory, to avoid overwriting wrong | |
3899 | code with stale saved shadow contents. Note that HW | |
3900 | breakpoints don't have shadow memory, as they're | |
3901 | implemented using a mechanism that is not dependent on | |
3902 | being able to modify the target's memory, and as such | |
3903 | they should always be removed. */ | |
3904 | if (bl->shlib_disabled | |
3905 | && bl->target_info.shadow_len != 0 | |
3906 | && !memory_validate_breakpoint (bl->gdbarch, &bl->target_info)) | |
3907 | val = 0; | |
3908 | else | |
3909 | val = bl->owner->ops->remove_location (bl); | |
c02f5703 | 3910 | } |
c906108c SS |
3911 | else |
3912 | { | |
4a64f543 | 3913 | /* This breakpoint is in an overlay section. |
c02f5703 MS |
3914 | Did we set a breakpoint at the LMA? */ |
3915 | if (!overlay_events_enabled) | |
3916 | { | |
3917 | /* Yes -- overlay event support is not active, so we | |
3918 | should have set a breakpoint at the LMA. Remove it. | |
3919 | */ | |
c02f5703 MS |
3920 | /* Ignore any failures: if the LMA is in ROM, we will |
3921 | have already warned when we failed to insert it. */ | |
35df4500 TJB |
3922 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
3923 | target_remove_hw_breakpoint (bl->gdbarch, | |
3924 | &bl->overlay_target_info); | |
c02f5703 | 3925 | else |
35df4500 TJB |
3926 | target_remove_breakpoint (bl->gdbarch, |
3927 | &bl->overlay_target_info); | |
c02f5703 MS |
3928 | } |
3929 | /* Did we set a breakpoint at the VMA? | |
3930 | If so, we will have marked the breakpoint 'inserted'. */ | |
35df4500 | 3931 | if (bl->inserted) |
c906108c | 3932 | { |
c02f5703 MS |
3933 | /* Yes -- remove it. Previously we did not bother to |
3934 | remove the breakpoint if the section had been | |
3935 | unmapped, but let's not rely on that being safe. We | |
3936 | don't know what the overlay manager might do. */ | |
aa67235e UW |
3937 | |
3938 | /* However, we should remove *software* breakpoints only | |
3939 | if the section is still mapped, or else we overwrite | |
3940 | wrong code with the saved shadow contents. */ | |
348d480f PA |
3941 | if (bl->loc_type == bp_loc_hardware_breakpoint |
3942 | || section_is_mapped (bl->section)) | |
3943 | val = bl->owner->ops->remove_location (bl); | |
aa67235e UW |
3944 | else |
3945 | val = 0; | |
c906108c | 3946 | } |
c02f5703 MS |
3947 | else |
3948 | { | |
3949 | /* No -- not inserted, so no need to remove. No error. */ | |
3950 | val = 0; | |
3951 | } | |
c906108c | 3952 | } |
879d1e6b | 3953 | |
08351840 PA |
3954 | /* In some cases, we might not be able to remove a breakpoint in |
3955 | a shared library that has already been removed, but we have | |
3956 | not yet processed the shlib unload event. Similarly for an | |
3957 | unloaded add-symbol-file object - the user might not yet have | |
3958 | had the chance to remove-symbol-file it. shlib_disabled will | |
3959 | be set if the library/object has already been removed, but | |
3960 | the breakpoint hasn't been uninserted yet, e.g., after | |
3961 | "nosharedlibrary" or "remove-symbol-file" with breakpoints | |
3962 | always-inserted mode. */ | |
076855f9 | 3963 | if (val |
08351840 PA |
3964 | && (bl->loc_type == bp_loc_software_breakpoint |
3965 | && (bl->shlib_disabled | |
3966 | || solib_name_from_address (bl->pspace, bl->address) | |
d03de421 PA |
3967 | || shared_objfile_contains_address_p (bl->pspace, |
3968 | bl->address)))) | |
879d1e6b UW |
3969 | val = 0; |
3970 | ||
c906108c SS |
3971 | if (val) |
3972 | return val; | |
35df4500 | 3973 | bl->inserted = (is == mark_inserted); |
c906108c | 3974 | } |
35df4500 | 3975 | else if (bl->loc_type == bp_loc_hardware_watchpoint) |
c906108c | 3976 | { |
77b06cd7 TJB |
3977 | gdb_assert (bl->owner->ops != NULL |
3978 | && bl->owner->ops->remove_location != NULL); | |
3979 | ||
35df4500 | 3980 | bl->inserted = (is == mark_inserted); |
77b06cd7 | 3981 | bl->owner->ops->remove_location (bl); |
2e70b7b9 | 3982 | |
c906108c | 3983 | /* Failure to remove any of the hardware watchpoints comes here. */ |
35df4500 | 3984 | if ((is == mark_uninserted) && (bl->inserted)) |
8a3fe4f8 | 3985 | warning (_("Could not remove hardware watchpoint %d."), |
35df4500 | 3986 | bl->owner->number); |
c906108c | 3987 | } |
35df4500 TJB |
3988 | else if (bl->owner->type == bp_catchpoint |
3989 | && breakpoint_enabled (bl->owner) | |
3990 | && !bl->duplicate) | |
ce78b96d | 3991 | { |
77b06cd7 TJB |
3992 | gdb_assert (bl->owner->ops != NULL |
3993 | && bl->owner->ops->remove_location != NULL); | |
ce78b96d | 3994 | |
77b06cd7 | 3995 | val = bl->owner->ops->remove_location (bl); |
ce78b96d JB |
3996 | if (val) |
3997 | return val; | |
77b06cd7 | 3998 | |
35df4500 | 3999 | bl->inserted = (is == mark_inserted); |
ce78b96d | 4000 | } |
c906108c SS |
4001 | |
4002 | return 0; | |
4003 | } | |
4004 | ||
6c95b8df | 4005 | static int |
35df4500 | 4006 | remove_breakpoint (struct bp_location *bl, insertion_state_t is) |
6c95b8df PA |
4007 | { |
4008 | int ret; | |
4009 | struct cleanup *old_chain; | |
4010 | ||
35df4500 TJB |
4011 | /* BL is never in moribund_locations by our callers. */ |
4012 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 4013 | |
35df4500 | 4014 | if (bl->owner->enable_state == bp_permanent) |
6c95b8df PA |
4015 | /* Permanent breakpoints cannot be inserted or removed. */ |
4016 | return 0; | |
4017 | ||
4018 | /* The type of none suggests that owner is actually deleted. | |
4019 | This should not ever happen. */ | |
35df4500 | 4020 | gdb_assert (bl->owner->type != bp_none); |
6c95b8df PA |
4021 | |
4022 | old_chain = save_current_space_and_thread (); | |
4023 | ||
35df4500 | 4024 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df | 4025 | |
35df4500 | 4026 | ret = remove_breakpoint_1 (bl, is); |
6c95b8df PA |
4027 | |
4028 | do_cleanups (old_chain); | |
4029 | return ret; | |
4030 | } | |
4031 | ||
c906108c SS |
4032 | /* Clear the "inserted" flag in all breakpoints. */ |
4033 | ||
25b22b0a | 4034 | void |
fba45db2 | 4035 | mark_breakpoints_out (void) |
c906108c | 4036 | { |
35df4500 | 4037 | struct bp_location *bl, **blp_tmp; |
c906108c | 4038 | |
35df4500 TJB |
4039 | ALL_BP_LOCATIONS (bl, blp_tmp) |
4040 | if (bl->pspace == current_program_space) | |
4041 | bl->inserted = 0; | |
c906108c SS |
4042 | } |
4043 | ||
53a5351d JM |
4044 | /* Clear the "inserted" flag in all breakpoints and delete any |
4045 | breakpoints which should go away between runs of the program. | |
c906108c SS |
4046 | |
4047 | Plus other such housekeeping that has to be done for breakpoints | |
4048 | between runs. | |
4049 | ||
53a5351d JM |
4050 | Note: this function gets called at the end of a run (by |
4051 | generic_mourn_inferior) and when a run begins (by | |
4a64f543 | 4052 | init_wait_for_inferior). */ |
c906108c SS |
4053 | |
4054 | ||
4055 | ||
4056 | void | |
fba45db2 | 4057 | breakpoint_init_inferior (enum inf_context context) |
c906108c | 4058 | { |
35df4500 TJB |
4059 | struct breakpoint *b, *b_tmp; |
4060 | struct bp_location *bl, **blp_tmp; | |
1c5cfe86 | 4061 | int ix; |
6c95b8df | 4062 | struct program_space *pspace = current_program_space; |
c906108c | 4063 | |
50c71eaf PA |
4064 | /* If breakpoint locations are shared across processes, then there's |
4065 | nothing to do. */ | |
f5656ead | 4066 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
4067 | return; |
4068 | ||
35df4500 | 4069 | ALL_BP_LOCATIONS (bl, blp_tmp) |
6c95b8df | 4070 | { |
35df4500 TJB |
4071 | /* ALL_BP_LOCATIONS bp_location has BL->OWNER always non-NULL. */ |
4072 | if (bl->pspace == pspace | |
4073 | && bl->owner->enable_state != bp_permanent) | |
4074 | bl->inserted = 0; | |
6c95b8df | 4075 | } |
075f6582 | 4076 | |
35df4500 | 4077 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 4078 | { |
6c95b8df PA |
4079 | if (b->loc && b->loc->pspace != pspace) |
4080 | continue; | |
4081 | ||
c5aa993b JM |
4082 | switch (b->type) |
4083 | { | |
4084 | case bp_call_dummy: | |
e2e4d78b | 4085 | case bp_longjmp_call_dummy: |
c906108c | 4086 | |
c5aa993b | 4087 | /* If the call dummy breakpoint is at the entry point it will |
ab92d69b PA |
4088 | cause problems when the inferior is rerun, so we better get |
4089 | rid of it. */ | |
4090 | ||
4091 | case bp_watchpoint_scope: | |
4092 | ||
4093 | /* Also get rid of scope breakpoints. */ | |
4094 | ||
4095 | case bp_shlib_event: | |
4096 | ||
4097 | /* Also remove solib event breakpoints. Their addresses may | |
4098 | have changed since the last time we ran the program. | |
4099 | Actually we may now be debugging against different target; | |
4100 | and so the solib backend that installed this breakpoint may | |
4101 | not be used in by the target. E.g., | |
4102 | ||
4103 | (gdb) file prog-linux | |
4104 | (gdb) run # native linux target | |
4105 | ... | |
4106 | (gdb) kill | |
4107 | (gdb) file prog-win.exe | |
4108 | (gdb) tar rem :9999 # remote Windows gdbserver. | |
4109 | */ | |
c906108c | 4110 | |
f59f708a PA |
4111 | case bp_step_resume: |
4112 | ||
4113 | /* Also remove step-resume breakpoints. */ | |
4114 | ||
c5aa993b JM |
4115 | delete_breakpoint (b); |
4116 | break; | |
c906108c | 4117 | |
c5aa993b JM |
4118 | case bp_watchpoint: |
4119 | case bp_hardware_watchpoint: | |
4120 | case bp_read_watchpoint: | |
4121 | case bp_access_watchpoint: | |
3a5c3e22 PA |
4122 | { |
4123 | struct watchpoint *w = (struct watchpoint *) b; | |
c906108c | 4124 | |
3a5c3e22 PA |
4125 | /* Likewise for watchpoints on local expressions. */ |
4126 | if (w->exp_valid_block != NULL) | |
4127 | delete_breakpoint (b); | |
4128 | else if (context == inf_starting) | |
4129 | { | |
4130 | /* Reset val field to force reread of starting value in | |
4131 | insert_breakpoints. */ | |
4132 | if (w->val) | |
4133 | value_free (w->val); | |
4134 | w->val = NULL; | |
4135 | w->val_valid = 0; | |
c860120c | 4136 | } |
3a5c3e22 | 4137 | } |
c5aa993b JM |
4138 | break; |
4139 | default: | |
c5aa993b JM |
4140 | break; |
4141 | } | |
4142 | } | |
1c5cfe86 PA |
4143 | |
4144 | /* Get rid of the moribund locations. */ | |
35df4500 TJB |
4145 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, bl); ++ix) |
4146 | decref_bp_location (&bl); | |
1c5cfe86 | 4147 | VEC_free (bp_location_p, moribund_locations); |
c906108c SS |
4148 | } |
4149 | ||
6c95b8df PA |
4150 | /* These functions concern about actual breakpoints inserted in the |
4151 | target --- to e.g. check if we need to do decr_pc adjustment or if | |
4152 | we need to hop over the bkpt --- so we check for address space | |
4153 | match, not program space. */ | |
4154 | ||
c2c6d25f JM |
4155 | /* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint |
4156 | exists at PC. It returns ordinary_breakpoint_here if it's an | |
4157 | ordinary breakpoint, or permanent_breakpoint_here if it's a | |
4158 | permanent breakpoint. | |
4159 | - When continuing from a location with an ordinary breakpoint, we | |
4160 | actually single step once before calling insert_breakpoints. | |
e5dd4106 | 4161 | - When continuing from a location with a permanent breakpoint, we |
c2c6d25f JM |
4162 | need to use the `SKIP_PERMANENT_BREAKPOINT' macro, provided by |
4163 | the target, to advance the PC past the breakpoint. */ | |
c906108c | 4164 | |
c2c6d25f | 4165 | enum breakpoint_here |
6c95b8df | 4166 | breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
c906108c | 4167 | { |
35df4500 | 4168 | struct bp_location *bl, **blp_tmp; |
c2c6d25f | 4169 | int any_breakpoint_here = 0; |
c906108c | 4170 | |
35df4500 | 4171 | ALL_BP_LOCATIONS (bl, blp_tmp) |
075f6582 | 4172 | { |
35df4500 TJB |
4173 | if (bl->loc_type != bp_loc_software_breakpoint |
4174 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4175 | continue; |
4176 | ||
f1310107 | 4177 | /* ALL_BP_LOCATIONS bp_location has BL->OWNER always non-NULL. */ |
35df4500 TJB |
4178 | if ((breakpoint_enabled (bl->owner) |
4179 | || bl->owner->enable_state == bp_permanent) | |
f1310107 | 4180 | && breakpoint_location_address_match (bl, aspace, pc)) |
075f6582 DJ |
4181 | { |
4182 | if (overlay_debugging | |
35df4500 TJB |
4183 | && section_is_overlay (bl->section) |
4184 | && !section_is_mapped (bl->section)) | |
075f6582 | 4185 | continue; /* unmapped overlay -- can't be a match */ |
35df4500 | 4186 | else if (bl->owner->enable_state == bp_permanent) |
075f6582 DJ |
4187 | return permanent_breakpoint_here; |
4188 | else | |
4189 | any_breakpoint_here = 1; | |
4190 | } | |
4191 | } | |
c906108c | 4192 | |
c2c6d25f | 4193 | return any_breakpoint_here ? ordinary_breakpoint_here : 0; |
c906108c SS |
4194 | } |
4195 | ||
1c5cfe86 PA |
4196 | /* Return true if there's a moribund breakpoint at PC. */ |
4197 | ||
4198 | int | |
6c95b8df | 4199 | moribund_breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
1c5cfe86 PA |
4200 | { |
4201 | struct bp_location *loc; | |
4202 | int ix; | |
4203 | ||
4204 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
f1310107 | 4205 | if (breakpoint_location_address_match (loc, aspace, pc)) |
1c5cfe86 PA |
4206 | return 1; |
4207 | ||
4208 | return 0; | |
4209 | } | |
c2c6d25f | 4210 | |
c36b740a | 4211 | /* Returns non-zero if there's a breakpoint inserted at PC, which is |
4a64f543 MS |
4212 | inserted using regular breakpoint_chain / bp_location array |
4213 | mechanism. This does not check for single-step breakpoints, which | |
4214 | are inserted and removed using direct target manipulation. */ | |
c906108c SS |
4215 | |
4216 | int | |
4a64f543 MS |
4217 | regular_breakpoint_inserted_here_p (struct address_space *aspace, |
4218 | CORE_ADDR pc) | |
c906108c | 4219 | { |
35df4500 | 4220 | struct bp_location *bl, **blp_tmp; |
c906108c | 4221 | |
35df4500 | 4222 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 4223 | { |
35df4500 TJB |
4224 | if (bl->loc_type != bp_loc_software_breakpoint |
4225 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4226 | continue; |
4227 | ||
35df4500 | 4228 | if (bl->inserted |
f1310107 | 4229 | && breakpoint_location_address_match (bl, aspace, pc)) |
075f6582 DJ |
4230 | { |
4231 | if (overlay_debugging | |
35df4500 TJB |
4232 | && section_is_overlay (bl->section) |
4233 | && !section_is_mapped (bl->section)) | |
075f6582 DJ |
4234 | continue; /* unmapped overlay -- can't be a match */ |
4235 | else | |
4236 | return 1; | |
4237 | } | |
c5aa993b | 4238 | } |
c36b740a VP |
4239 | return 0; |
4240 | } | |
4241 | ||
4242 | /* Returns non-zero iff there's either regular breakpoint | |
4243 | or a single step breakpoint inserted at PC. */ | |
4244 | ||
4245 | int | |
6c95b8df | 4246 | breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc) |
c36b740a | 4247 | { |
6c95b8df | 4248 | if (regular_breakpoint_inserted_here_p (aspace, pc)) |
c36b740a | 4249 | return 1; |
c906108c | 4250 | |
6c95b8df | 4251 | if (single_step_breakpoint_inserted_here_p (aspace, pc)) |
1aafd4da UW |
4252 | return 1; |
4253 | ||
c906108c SS |
4254 | return 0; |
4255 | } | |
4256 | ||
ef370185 JB |
4257 | /* Ignoring deprecated raw breakpoints, return non-zero iff there is a |
4258 | software breakpoint inserted at PC. */ | |
4fa8626c | 4259 | |
ef370185 JB |
4260 | static struct bp_location * |
4261 | find_non_raw_software_breakpoint_inserted_here (struct address_space *aspace, | |
4262 | CORE_ADDR pc) | |
4fa8626c | 4263 | { |
35df4500 | 4264 | struct bp_location *bl, **blp_tmp; |
4fa8626c | 4265 | |
35df4500 | 4266 | ALL_BP_LOCATIONS (bl, blp_tmp) |
4fa8626c | 4267 | { |
35df4500 | 4268 | if (bl->loc_type != bp_loc_software_breakpoint) |
4fa8626c DJ |
4269 | continue; |
4270 | ||
35df4500 TJB |
4271 | if (bl->inserted |
4272 | && breakpoint_address_match (bl->pspace->aspace, bl->address, | |
6c95b8df | 4273 | aspace, pc)) |
4fa8626c DJ |
4274 | { |
4275 | if (overlay_debugging | |
35df4500 TJB |
4276 | && section_is_overlay (bl->section) |
4277 | && !section_is_mapped (bl->section)) | |
4fa8626c DJ |
4278 | continue; /* unmapped overlay -- can't be a match */ |
4279 | else | |
ef370185 | 4280 | return bl; |
4fa8626c DJ |
4281 | } |
4282 | } | |
4283 | ||
ef370185 JB |
4284 | return NULL; |
4285 | } | |
4286 | ||
4287 | /* This function returns non-zero iff there is a software breakpoint | |
4288 | inserted at PC. */ | |
4289 | ||
4290 | int | |
4291 | software_breakpoint_inserted_here_p (struct address_space *aspace, | |
4292 | CORE_ADDR pc) | |
4293 | { | |
4294 | if (find_non_raw_software_breakpoint_inserted_here (aspace, pc) != NULL) | |
4295 | return 1; | |
4296 | ||
1aafd4da | 4297 | /* Also check for software single-step breakpoints. */ |
6c95b8df | 4298 | if (single_step_breakpoint_inserted_here_p (aspace, pc)) |
1aafd4da UW |
4299 | return 1; |
4300 | ||
4fa8626c DJ |
4301 | return 0; |
4302 | } | |
4303 | ||
9093389c PA |
4304 | int |
4305 | hardware_watchpoint_inserted_in_range (struct address_space *aspace, | |
4306 | CORE_ADDR addr, ULONGEST len) | |
4307 | { | |
4308 | struct breakpoint *bpt; | |
4309 | ||
4310 | ALL_BREAKPOINTS (bpt) | |
4311 | { | |
4312 | struct bp_location *loc; | |
4313 | ||
4314 | if (bpt->type != bp_hardware_watchpoint | |
4315 | && bpt->type != bp_access_watchpoint) | |
4316 | continue; | |
4317 | ||
4318 | if (!breakpoint_enabled (bpt)) | |
4319 | continue; | |
4320 | ||
4321 | for (loc = bpt->loc; loc; loc = loc->next) | |
4322 | if (loc->pspace->aspace == aspace && loc->inserted) | |
4323 | { | |
4324 | CORE_ADDR l, h; | |
4325 | ||
4326 | /* Check for intersection. */ | |
4327 | l = max (loc->address, addr); | |
4328 | h = min (loc->address + loc->length, addr + len); | |
4329 | if (l < h) | |
4330 | return 1; | |
4331 | } | |
4332 | } | |
4333 | return 0; | |
4334 | } | |
4335 | ||
075f6582 DJ |
4336 | /* breakpoint_thread_match (PC, PTID) returns true if the breakpoint at |
4337 | PC is valid for process/thread PTID. */ | |
c906108c SS |
4338 | |
4339 | int | |
6c95b8df PA |
4340 | breakpoint_thread_match (struct address_space *aspace, CORE_ADDR pc, |
4341 | ptid_t ptid) | |
c906108c | 4342 | { |
35df4500 | 4343 | struct bp_location *bl, **blp_tmp; |
4a306c9a | 4344 | /* The thread and task IDs associated to PTID, computed lazily. */ |
a6f1cd96 | 4345 | int thread = -1; |
4a306c9a | 4346 | int task = 0; |
a6f1cd96 | 4347 | |
35df4500 | 4348 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 4349 | { |
35df4500 TJB |
4350 | if (bl->loc_type != bp_loc_software_breakpoint |
4351 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4352 | continue; |
4353 | ||
35df4500 TJB |
4354 | /* ALL_BP_LOCATIONS bp_location has bl->OWNER always non-NULL. */ |
4355 | if (!breakpoint_enabled (bl->owner) | |
4356 | && bl->owner->enable_state != bp_permanent) | |
a6f1cd96 JB |
4357 | continue; |
4358 | ||
f1310107 | 4359 | if (!breakpoint_location_address_match (bl, aspace, pc)) |
a6f1cd96 JB |
4360 | continue; |
4361 | ||
35df4500 | 4362 | if (bl->owner->thread != -1) |
075f6582 | 4363 | { |
a6f1cd96 JB |
4364 | /* This is a thread-specific breakpoint. Check that ptid |
4365 | matches that thread. If thread hasn't been computed yet, | |
4366 | it is now time to do so. */ | |
4367 | if (thread == -1) | |
4368 | thread = pid_to_thread_id (ptid); | |
35df4500 | 4369 | if (bl->owner->thread != thread) |
a6f1cd96 | 4370 | continue; |
075f6582 | 4371 | } |
a6f1cd96 | 4372 | |
35df4500 | 4373 | if (bl->owner->task != 0) |
4a306c9a JB |
4374 | { |
4375 | /* This is a task-specific breakpoint. Check that ptid | |
4376 | matches that task. If task hasn't been computed yet, | |
4377 | it is now time to do so. */ | |
4378 | if (task == 0) | |
4379 | task = ada_get_task_number (ptid); | |
35df4500 | 4380 | if (bl->owner->task != task) |
4a306c9a JB |
4381 | continue; |
4382 | } | |
4383 | ||
a6f1cd96 | 4384 | if (overlay_debugging |
35df4500 TJB |
4385 | && section_is_overlay (bl->section) |
4386 | && !section_is_mapped (bl->section)) | |
a6f1cd96 JB |
4387 | continue; /* unmapped overlay -- can't be a match */ |
4388 | ||
4389 | return 1; | |
c5aa993b | 4390 | } |
c906108c SS |
4391 | |
4392 | return 0; | |
4393 | } | |
c906108c | 4394 | \f |
c5aa993b | 4395 | |
c906108c SS |
4396 | /* bpstat stuff. External routines' interfaces are documented |
4397 | in breakpoint.h. */ | |
4398 | ||
4399 | int | |
c326b90e | 4400 | is_catchpoint (struct breakpoint *ep) |
c906108c | 4401 | { |
533be4dd | 4402 | return (ep->type == bp_catchpoint); |
c906108c SS |
4403 | } |
4404 | ||
f431efe5 PA |
4405 | /* Frees any storage that is part of a bpstat. Does not walk the |
4406 | 'next' chain. */ | |
4407 | ||
4408 | static void | |
198757a8 VP |
4409 | bpstat_free (bpstat bs) |
4410 | { | |
4411 | if (bs->old_val != NULL) | |
4412 | value_free (bs->old_val); | |
9add0f1b | 4413 | decref_counted_command_line (&bs->commands); |
f431efe5 | 4414 | decref_bp_location (&bs->bp_location_at); |
198757a8 VP |
4415 | xfree (bs); |
4416 | } | |
4417 | ||
c906108c SS |
4418 | /* Clear a bpstat so that it says we are not at any breakpoint. |
4419 | Also free any storage that is part of a bpstat. */ | |
4420 | ||
4421 | void | |
fba45db2 | 4422 | bpstat_clear (bpstat *bsp) |
c906108c SS |
4423 | { |
4424 | bpstat p; | |
4425 | bpstat q; | |
4426 | ||
4427 | if (bsp == 0) | |
4428 | return; | |
4429 | p = *bsp; | |
4430 | while (p != NULL) | |
4431 | { | |
4432 | q = p->next; | |
198757a8 | 4433 | bpstat_free (p); |
c906108c SS |
4434 | p = q; |
4435 | } | |
4436 | *bsp = NULL; | |
4437 | } | |
4438 | ||
4439 | /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that | |
4440 | is part of the bpstat is copied as well. */ | |
4441 | ||
4442 | bpstat | |
fba45db2 | 4443 | bpstat_copy (bpstat bs) |
c906108c SS |
4444 | { |
4445 | bpstat p = NULL; | |
4446 | bpstat tmp; | |
4447 | bpstat retval = NULL; | |
4448 | ||
4449 | if (bs == NULL) | |
4450 | return bs; | |
4451 | ||
4452 | for (; bs != NULL; bs = bs->next) | |
4453 | { | |
4454 | tmp = (bpstat) xmalloc (sizeof (*tmp)); | |
4455 | memcpy (tmp, bs, sizeof (*tmp)); | |
9add0f1b | 4456 | incref_counted_command_line (tmp->commands); |
f431efe5 | 4457 | incref_bp_location (tmp->bp_location_at); |
31cc81e9 | 4458 | if (bs->old_val != NULL) |
3c3185ac JK |
4459 | { |
4460 | tmp->old_val = value_copy (bs->old_val); | |
4461 | release_value (tmp->old_val); | |
4462 | } | |
31cc81e9 | 4463 | |
c906108c SS |
4464 | if (p == NULL) |
4465 | /* This is the first thing in the chain. */ | |
4466 | retval = tmp; | |
4467 | else | |
4468 | p->next = tmp; | |
4469 | p = tmp; | |
4470 | } | |
4471 | p->next = NULL; | |
4472 | return retval; | |
4473 | } | |
4474 | ||
4a64f543 | 4475 | /* Find the bpstat associated with this breakpoint. */ |
c906108c SS |
4476 | |
4477 | bpstat | |
fba45db2 | 4478 | bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint) |
c906108c | 4479 | { |
c5aa993b JM |
4480 | if (bsp == NULL) |
4481 | return NULL; | |
c906108c | 4482 | |
c5aa993b JM |
4483 | for (; bsp != NULL; bsp = bsp->next) |
4484 | { | |
f431efe5 | 4485 | if (bsp->breakpoint_at == breakpoint) |
c5aa993b JM |
4486 | return bsp; |
4487 | } | |
c906108c SS |
4488 | return NULL; |
4489 | } | |
4490 | ||
ab04a2af TT |
4491 | /* See breakpoint.h. */ |
4492 | ||
47591c29 | 4493 | int |
427cd150 | 4494 | bpstat_explains_signal (bpstat bsp, enum gdb_signal sig) |
ab04a2af | 4495 | { |
ab04a2af TT |
4496 | for (; bsp != NULL; bsp = bsp->next) |
4497 | { | |
427cd150 TT |
4498 | if (bsp->breakpoint_at == NULL) |
4499 | { | |
4500 | /* A moribund location can never explain a signal other than | |
4501 | GDB_SIGNAL_TRAP. */ | |
4502 | if (sig == GDB_SIGNAL_TRAP) | |
47591c29 | 4503 | return 1; |
427cd150 TT |
4504 | } |
4505 | else | |
47591c29 PA |
4506 | { |
4507 | if (bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at, | |
4508 | sig)) | |
4509 | return 1; | |
4510 | } | |
ab04a2af TT |
4511 | } |
4512 | ||
47591c29 | 4513 | return 0; |
ab04a2af TT |
4514 | } |
4515 | ||
4a64f543 MS |
4516 | /* Put in *NUM the breakpoint number of the first breakpoint we are |
4517 | stopped at. *BSP upon return is a bpstat which points to the | |
4518 | remaining breakpoints stopped at (but which is not guaranteed to be | |
4519 | good for anything but further calls to bpstat_num). | |
4520 | ||
8671a17b PA |
4521 | Return 0 if passed a bpstat which does not indicate any breakpoints. |
4522 | Return -1 if stopped at a breakpoint that has been deleted since | |
4523 | we set it. | |
4524 | Return 1 otherwise. */ | |
c906108c SS |
4525 | |
4526 | int | |
8671a17b | 4527 | bpstat_num (bpstat *bsp, int *num) |
c906108c SS |
4528 | { |
4529 | struct breakpoint *b; | |
4530 | ||
4531 | if ((*bsp) == NULL) | |
4532 | return 0; /* No more breakpoint values */ | |
8671a17b | 4533 | |
4a64f543 MS |
4534 | /* We assume we'll never have several bpstats that correspond to a |
4535 | single breakpoint -- otherwise, this function might return the | |
4536 | same number more than once and this will look ugly. */ | |
f431efe5 | 4537 | b = (*bsp)->breakpoint_at; |
8671a17b PA |
4538 | *bsp = (*bsp)->next; |
4539 | if (b == NULL) | |
4540 | return -1; /* breakpoint that's been deleted since */ | |
4541 | ||
4542 | *num = b->number; /* We have its number */ | |
4543 | return 1; | |
c906108c SS |
4544 | } |
4545 | ||
e93ca019 | 4546 | /* See breakpoint.h. */ |
c906108c SS |
4547 | |
4548 | void | |
e93ca019 | 4549 | bpstat_clear_actions (void) |
c906108c | 4550 | { |
e93ca019 JK |
4551 | struct thread_info *tp; |
4552 | bpstat bs; | |
4553 | ||
4554 | if (ptid_equal (inferior_ptid, null_ptid)) | |
4555 | return; | |
4556 | ||
4557 | tp = find_thread_ptid (inferior_ptid); | |
4558 | if (tp == NULL) | |
4559 | return; | |
4560 | ||
4561 | for (bs = tp->control.stop_bpstat; bs != NULL; bs = bs->next) | |
c906108c | 4562 | { |
9add0f1b | 4563 | decref_counted_command_line (&bs->commands); |
abf85f46 | 4564 | |
c906108c SS |
4565 | if (bs->old_val != NULL) |
4566 | { | |
4567 | value_free (bs->old_val); | |
4568 | bs->old_val = NULL; | |
4569 | } | |
4570 | } | |
4571 | } | |
4572 | ||
f3b1572e PA |
4573 | /* Called when a command is about to proceed the inferior. */ |
4574 | ||
4575 | static void | |
4576 | breakpoint_about_to_proceed (void) | |
4577 | { | |
4578 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
4579 | { | |
4580 | struct thread_info *tp = inferior_thread (); | |
4581 | ||
4582 | /* Allow inferior function calls in breakpoint commands to not | |
4583 | interrupt the command list. When the call finishes | |
4584 | successfully, the inferior will be standing at the same | |
4585 | breakpoint as if nothing happened. */ | |
16c381f0 | 4586 | if (tp->control.in_infcall) |
f3b1572e PA |
4587 | return; |
4588 | } | |
4589 | ||
4590 | breakpoint_proceeded = 1; | |
4591 | } | |
4592 | ||
4a64f543 MS |
4593 | /* Stub for cleaning up our state if we error-out of a breakpoint |
4594 | command. */ | |
c906108c | 4595 | static void |
4efb68b1 | 4596 | cleanup_executing_breakpoints (void *ignore) |
c906108c SS |
4597 | { |
4598 | executing_breakpoint_commands = 0; | |
4599 | } | |
4600 | ||
abf85f46 JK |
4601 | /* Return non-zero iff CMD as the first line of a command sequence is `silent' |
4602 | or its equivalent. */ | |
4603 | ||
4604 | static int | |
4605 | command_line_is_silent (struct command_line *cmd) | |
4606 | { | |
4607 | return cmd && (strcmp ("silent", cmd->line) == 0 | |
4608 | || (xdb_commands && strcmp ("Q", cmd->line) == 0)); | |
4609 | } | |
4610 | ||
4a64f543 MS |
4611 | /* Execute all the commands associated with all the breakpoints at |
4612 | this location. Any of these commands could cause the process to | |
4613 | proceed beyond this point, etc. We look out for such changes by | |
4614 | checking the global "breakpoint_proceeded" after each command. | |
c906108c | 4615 | |
347bddb7 PA |
4616 | Returns true if a breakpoint command resumed the inferior. In that |
4617 | case, it is the caller's responsibility to recall it again with the | |
4618 | bpstat of the current thread. */ | |
4619 | ||
4620 | static int | |
4621 | bpstat_do_actions_1 (bpstat *bsp) | |
c906108c SS |
4622 | { |
4623 | bpstat bs; | |
4624 | struct cleanup *old_chain; | |
347bddb7 | 4625 | int again = 0; |
c906108c SS |
4626 | |
4627 | /* Avoid endless recursion if a `source' command is contained | |
4628 | in bs->commands. */ | |
4629 | if (executing_breakpoint_commands) | |
347bddb7 | 4630 | return 0; |
c906108c SS |
4631 | |
4632 | executing_breakpoint_commands = 1; | |
4633 | old_chain = make_cleanup (cleanup_executing_breakpoints, 0); | |
4634 | ||
cf6c5ffb TT |
4635 | prevent_dont_repeat (); |
4636 | ||
4a64f543 | 4637 | /* This pointer will iterate over the list of bpstat's. */ |
c906108c SS |
4638 | bs = *bsp; |
4639 | ||
4640 | breakpoint_proceeded = 0; | |
4641 | for (; bs != NULL; bs = bs->next) | |
4642 | { | |
9add0f1b | 4643 | struct counted_command_line *ccmd; |
6c50ab1c JB |
4644 | struct command_line *cmd; |
4645 | struct cleanup *this_cmd_tree_chain; | |
4646 | ||
4647 | /* Take ownership of the BSP's command tree, if it has one. | |
4648 | ||
4649 | The command tree could legitimately contain commands like | |
4650 | 'step' and 'next', which call clear_proceed_status, which | |
4651 | frees stop_bpstat's command tree. To make sure this doesn't | |
4652 | free the tree we're executing out from under us, we need to | |
4653 | take ownership of the tree ourselves. Since a given bpstat's | |
4654 | commands are only executed once, we don't need to copy it; we | |
4655 | can clear the pointer in the bpstat, and make sure we free | |
4656 | the tree when we're done. */ | |
9add0f1b TT |
4657 | ccmd = bs->commands; |
4658 | bs->commands = NULL; | |
abf85f46 JK |
4659 | this_cmd_tree_chain = make_cleanup_decref_counted_command_line (&ccmd); |
4660 | cmd = ccmd ? ccmd->commands : NULL; | |
4661 | if (command_line_is_silent (cmd)) | |
4662 | { | |
4663 | /* The action has been already done by bpstat_stop_status. */ | |
4664 | cmd = cmd->next; | |
4665 | } | |
6c50ab1c | 4666 | |
c906108c SS |
4667 | while (cmd != NULL) |
4668 | { | |
4669 | execute_control_command (cmd); | |
4670 | ||
4671 | if (breakpoint_proceeded) | |
4672 | break; | |
4673 | else | |
4674 | cmd = cmd->next; | |
4675 | } | |
6c50ab1c JB |
4676 | |
4677 | /* We can free this command tree now. */ | |
4678 | do_cleanups (this_cmd_tree_chain); | |
4679 | ||
c906108c | 4680 | if (breakpoint_proceeded) |
32c1e744 VP |
4681 | { |
4682 | if (target_can_async_p ()) | |
347bddb7 PA |
4683 | /* If we are in async mode, then the target might be still |
4684 | running, not stopped at any breakpoint, so nothing for | |
4685 | us to do here -- just return to the event loop. */ | |
4686 | ; | |
32c1e744 VP |
4687 | else |
4688 | /* In sync mode, when execute_control_command returns | |
4689 | we're already standing on the next breakpoint. | |
347bddb7 PA |
4690 | Breakpoint commands for that stop were not run, since |
4691 | execute_command does not run breakpoint commands -- | |
4692 | only command_line_handler does, but that one is not | |
4693 | involved in execution of breakpoint commands. So, we | |
4694 | can now execute breakpoint commands. It should be | |
4695 | noted that making execute_command do bpstat actions is | |
4696 | not an option -- in this case we'll have recursive | |
4697 | invocation of bpstat for each breakpoint with a | |
4698 | command, and can easily blow up GDB stack. Instead, we | |
4699 | return true, which will trigger the caller to recall us | |
4700 | with the new stop_bpstat. */ | |
4701 | again = 1; | |
4702 | break; | |
32c1e744 | 4703 | } |
c906108c | 4704 | } |
c2b8ed2c | 4705 | do_cleanups (old_chain); |
347bddb7 PA |
4706 | return again; |
4707 | } | |
4708 | ||
4709 | void | |
4710 | bpstat_do_actions (void) | |
4711 | { | |
353d1d73 JK |
4712 | struct cleanup *cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
4713 | ||
347bddb7 PA |
4714 | /* Do any commands attached to breakpoint we are stopped at. */ |
4715 | while (!ptid_equal (inferior_ptid, null_ptid) | |
4716 | && target_has_execution | |
4717 | && !is_exited (inferior_ptid) | |
4718 | && !is_executing (inferior_ptid)) | |
4719 | /* Since in sync mode, bpstat_do_actions may resume the inferior, | |
4720 | and only return when it is stopped at the next breakpoint, we | |
4721 | keep doing breakpoint actions until it returns false to | |
4722 | indicate the inferior was not resumed. */ | |
16c381f0 | 4723 | if (!bpstat_do_actions_1 (&inferior_thread ()->control.stop_bpstat)) |
347bddb7 | 4724 | break; |
353d1d73 JK |
4725 | |
4726 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
4727 | } |
4728 | ||
fa4727a6 DJ |
4729 | /* Print out the (old or new) value associated with a watchpoint. */ |
4730 | ||
4731 | static void | |
4732 | watchpoint_value_print (struct value *val, struct ui_file *stream) | |
4733 | { | |
4734 | if (val == NULL) | |
4735 | fprintf_unfiltered (stream, _("<unreadable>")); | |
4736 | else | |
79a45b7d TT |
4737 | { |
4738 | struct value_print_options opts; | |
4739 | get_user_print_options (&opts); | |
4740 | value_print (val, stream, &opts); | |
4741 | } | |
fa4727a6 DJ |
4742 | } |
4743 | ||
e514a9d6 | 4744 | /* Generic routine for printing messages indicating why we |
4a64f543 | 4745 | stopped. The behavior of this function depends on the value |
e514a9d6 JM |
4746 | 'print_it' in the bpstat structure. Under some circumstances we |
4747 | may decide not to print anything here and delegate the task to | |
4a64f543 | 4748 | normal_stop(). */ |
e514a9d6 JM |
4749 | |
4750 | static enum print_stop_action | |
4751 | print_bp_stop_message (bpstat bs) | |
4752 | { | |
4753 | switch (bs->print_it) | |
4754 | { | |
4755 | case print_it_noop: | |
4a64f543 | 4756 | /* Nothing should be printed for this bpstat entry. */ |
e514a9d6 JM |
4757 | return PRINT_UNKNOWN; |
4758 | break; | |
4759 | ||
4760 | case print_it_done: | |
4761 | /* We still want to print the frame, but we already printed the | |
4a64f543 | 4762 | relevant messages. */ |
e514a9d6 JM |
4763 | return PRINT_SRC_AND_LOC; |
4764 | break; | |
4765 | ||
4766 | case print_it_normal: | |
4f8d1dc6 | 4767 | { |
f431efe5 PA |
4768 | struct breakpoint *b = bs->breakpoint_at; |
4769 | ||
1a6a67de TJB |
4770 | /* bs->breakpoint_at can be NULL if it was a momentary breakpoint |
4771 | which has since been deleted. */ | |
4772 | if (b == NULL) | |
4773 | return PRINT_UNKNOWN; | |
4774 | ||
348d480f PA |
4775 | /* Normal case. Call the breakpoint's print_it method. */ |
4776 | return b->ops->print_it (bs); | |
4f8d1dc6 | 4777 | } |
348d480f | 4778 | break; |
3086aeae | 4779 | |
e514a9d6 | 4780 | default: |
8e65ff28 | 4781 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 4782 | _("print_bp_stop_message: unrecognized enum value")); |
e514a9d6 | 4783 | break; |
c906108c | 4784 | } |
c906108c SS |
4785 | } |
4786 | ||
edcc5120 TT |
4787 | /* A helper function that prints a shared library stopped event. */ |
4788 | ||
4789 | static void | |
4790 | print_solib_event (int is_catchpoint) | |
4791 | { | |
4792 | int any_deleted | |
4793 | = !VEC_empty (char_ptr, current_program_space->deleted_solibs); | |
4794 | int any_added | |
4795 | = !VEC_empty (so_list_ptr, current_program_space->added_solibs); | |
4796 | ||
4797 | if (!is_catchpoint) | |
4798 | { | |
4799 | if (any_added || any_deleted) | |
4800 | ui_out_text (current_uiout, | |
4801 | _("Stopped due to shared library event:\n")); | |
4802 | else | |
4803 | ui_out_text (current_uiout, | |
4804 | _("Stopped due to shared library event (no " | |
4805 | "libraries added or removed)\n")); | |
4806 | } | |
4807 | ||
4808 | if (ui_out_is_mi_like_p (current_uiout)) | |
4809 | ui_out_field_string (current_uiout, "reason", | |
4810 | async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT)); | |
4811 | ||
4812 | if (any_deleted) | |
4813 | { | |
4814 | struct cleanup *cleanup; | |
4815 | char *name; | |
4816 | int ix; | |
4817 | ||
4818 | ui_out_text (current_uiout, _(" Inferior unloaded ")); | |
4819 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4820 | "removed"); | |
4821 | for (ix = 0; | |
4822 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
4823 | ix, name); | |
4824 | ++ix) | |
4825 | { | |
4826 | if (ix > 0) | |
4827 | ui_out_text (current_uiout, " "); | |
4828 | ui_out_field_string (current_uiout, "library", name); | |
4829 | ui_out_text (current_uiout, "\n"); | |
4830 | } | |
4831 | ||
4832 | do_cleanups (cleanup); | |
4833 | } | |
4834 | ||
4835 | if (any_added) | |
4836 | { | |
4837 | struct so_list *iter; | |
4838 | int ix; | |
4839 | struct cleanup *cleanup; | |
4840 | ||
4841 | ui_out_text (current_uiout, _(" Inferior loaded ")); | |
4842 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4843 | "added"); | |
4844 | for (ix = 0; | |
4845 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
4846 | ix, iter); | |
4847 | ++ix) | |
4848 | { | |
4849 | if (ix > 0) | |
4850 | ui_out_text (current_uiout, " "); | |
4851 | ui_out_field_string (current_uiout, "library", iter->so_name); | |
4852 | ui_out_text (current_uiout, "\n"); | |
4853 | } | |
4854 | ||
4855 | do_cleanups (cleanup); | |
4856 | } | |
4857 | } | |
4858 | ||
e514a9d6 JM |
4859 | /* Print a message indicating what happened. This is called from |
4860 | normal_stop(). The input to this routine is the head of the bpstat | |
36dfb11c TT |
4861 | list - a list of the eventpoints that caused this stop. KIND is |
4862 | the target_waitkind for the stopping event. This | |
e514a9d6 JM |
4863 | routine calls the generic print routine for printing a message |
4864 | about reasons for stopping. This will print (for example) the | |
4865 | "Breakpoint n," part of the output. The return value of this | |
4866 | routine is one of: | |
c906108c | 4867 | |
4a64f543 | 4868 | PRINT_UNKNOWN: Means we printed nothing. |
917317f4 | 4869 | PRINT_SRC_AND_LOC: Means we printed something, and expect subsequent |
4a64f543 | 4870 | code to print the location. An example is |
c5aa993b JM |
4871 | "Breakpoint 1, " which should be followed by |
4872 | the location. | |
917317f4 | 4873 | PRINT_SRC_ONLY: Means we printed something, but there is no need |
c5aa993b JM |
4874 | to also print the location part of the message. |
4875 | An example is the catch/throw messages, which | |
4a64f543 | 4876 | don't require a location appended to the end. |
917317f4 | 4877 | PRINT_NOTHING: We have done some printing and we don't need any |
4a64f543 | 4878 | further info to be printed. */ |
c906108c | 4879 | |
917317f4 | 4880 | enum print_stop_action |
36dfb11c | 4881 | bpstat_print (bpstat bs, int kind) |
c906108c SS |
4882 | { |
4883 | int val; | |
c5aa993b | 4884 | |
c906108c | 4885 | /* Maybe another breakpoint in the chain caused us to stop. |
53a5351d JM |
4886 | (Currently all watchpoints go on the bpstat whether hit or not. |
4887 | That probably could (should) be changed, provided care is taken | |
c906108c | 4888 | with respect to bpstat_explains_signal). */ |
e514a9d6 JM |
4889 | for (; bs; bs = bs->next) |
4890 | { | |
4891 | val = print_bp_stop_message (bs); | |
4892 | if (val == PRINT_SRC_ONLY | |
4893 | || val == PRINT_SRC_AND_LOC | |
4894 | || val == PRINT_NOTHING) | |
4895 | return val; | |
4896 | } | |
c906108c | 4897 | |
36dfb11c TT |
4898 | /* If we had hit a shared library event breakpoint, |
4899 | print_bp_stop_message would print out this message. If we hit an | |
4900 | OS-level shared library event, do the same thing. */ | |
4901 | if (kind == TARGET_WAITKIND_LOADED) | |
4902 | { | |
edcc5120 | 4903 | print_solib_event (0); |
36dfb11c TT |
4904 | return PRINT_NOTHING; |
4905 | } | |
4906 | ||
e514a9d6 | 4907 | /* We reached the end of the chain, or we got a null BS to start |
4a64f543 | 4908 | with and nothing was printed. */ |
917317f4 | 4909 | return PRINT_UNKNOWN; |
c906108c SS |
4910 | } |
4911 | ||
c42bd95a DE |
4912 | /* Evaluate the expression EXP and return 1 if value is zero. |
4913 | This returns the inverse of the condition because it is called | |
4914 | from catch_errors which returns 0 if an exception happened, and if an | |
4915 | exception happens we want execution to stop. | |
4a64f543 | 4916 | The argument is a "struct expression *" that has been cast to a |
c42bd95a | 4917 | "void *" to make it pass through catch_errors. */ |
c906108c SS |
4918 | |
4919 | static int | |
4efb68b1 | 4920 | breakpoint_cond_eval (void *exp) |
c906108c | 4921 | { |
278cd55f | 4922 | struct value *mark = value_mark (); |
c5aa993b | 4923 | int i = !value_true (evaluate_expression ((struct expression *) exp)); |
cc59ec59 | 4924 | |
c906108c SS |
4925 | value_free_to_mark (mark); |
4926 | return i; | |
4927 | } | |
4928 | ||
5760d0ab | 4929 | /* Allocate a new bpstat. Link it to the FIFO list by BS_LINK_POINTER. */ |
c906108c SS |
4930 | |
4931 | static bpstat | |
5760d0ab | 4932 | bpstat_alloc (struct bp_location *bl, bpstat **bs_link_pointer) |
c906108c SS |
4933 | { |
4934 | bpstat bs; | |
4935 | ||
4936 | bs = (bpstat) xmalloc (sizeof (*bs)); | |
5760d0ab JK |
4937 | bs->next = NULL; |
4938 | **bs_link_pointer = bs; | |
4939 | *bs_link_pointer = &bs->next; | |
f431efe5 PA |
4940 | bs->breakpoint_at = bl->owner; |
4941 | bs->bp_location_at = bl; | |
4942 | incref_bp_location (bl); | |
c906108c SS |
4943 | /* If the condition is false, etc., don't do the commands. */ |
4944 | bs->commands = NULL; | |
4945 | bs->old_val = NULL; | |
4946 | bs->print_it = print_it_normal; | |
4947 | return bs; | |
4948 | } | |
4949 | \f | |
d983da9c DJ |
4950 | /* The target has stopped with waitstatus WS. Check if any hardware |
4951 | watchpoints have triggered, according to the target. */ | |
4952 | ||
4953 | int | |
4954 | watchpoints_triggered (struct target_waitstatus *ws) | |
4955 | { | |
d92524f1 | 4956 | int stopped_by_watchpoint = target_stopped_by_watchpoint (); |
d983da9c DJ |
4957 | CORE_ADDR addr; |
4958 | struct breakpoint *b; | |
4959 | ||
4960 | if (!stopped_by_watchpoint) | |
4961 | { | |
4962 | /* We were not stopped by a watchpoint. Mark all watchpoints | |
4963 | as not triggered. */ | |
4964 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4965 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4966 | { |
4967 | struct watchpoint *w = (struct watchpoint *) b; | |
4968 | ||
4969 | w->watchpoint_triggered = watch_triggered_no; | |
4970 | } | |
d983da9c DJ |
4971 | |
4972 | return 0; | |
4973 | } | |
4974 | ||
4975 | if (!target_stopped_data_address (¤t_target, &addr)) | |
4976 | { | |
4977 | /* We were stopped by a watchpoint, but we don't know where. | |
4978 | Mark all watchpoints as unknown. */ | |
4979 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4980 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4981 | { |
4982 | struct watchpoint *w = (struct watchpoint *) b; | |
4983 | ||
4984 | w->watchpoint_triggered = watch_triggered_unknown; | |
4985 | } | |
d983da9c | 4986 | |
3c4797ba | 4987 | return 1; |
d983da9c DJ |
4988 | } |
4989 | ||
4990 | /* The target could report the data address. Mark watchpoints | |
4991 | affected by this data address as triggered, and all others as not | |
4992 | triggered. */ | |
4993 | ||
4994 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4995 | if (is_hardware_watchpoint (b)) |
d983da9c | 4996 | { |
3a5c3e22 | 4997 | struct watchpoint *w = (struct watchpoint *) b; |
a5606eee | 4998 | struct bp_location *loc; |
d983da9c | 4999 | |
3a5c3e22 | 5000 | w->watchpoint_triggered = watch_triggered_no; |
a5606eee | 5001 | for (loc = b->loc; loc; loc = loc->next) |
9c06b0b4 | 5002 | { |
3a5c3e22 | 5003 | if (is_masked_watchpoint (b)) |
9c06b0b4 | 5004 | { |
3a5c3e22 PA |
5005 | CORE_ADDR newaddr = addr & w->hw_wp_mask; |
5006 | CORE_ADDR start = loc->address & w->hw_wp_mask; | |
9c06b0b4 TJB |
5007 | |
5008 | if (newaddr == start) | |
5009 | { | |
3a5c3e22 | 5010 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
5011 | break; |
5012 | } | |
5013 | } | |
5014 | /* Exact match not required. Within range is sufficient. */ | |
5015 | else if (target_watchpoint_addr_within_range (¤t_target, | |
5016 | addr, loc->address, | |
5017 | loc->length)) | |
5018 | { | |
3a5c3e22 | 5019 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
5020 | break; |
5021 | } | |
5022 | } | |
d983da9c DJ |
5023 | } |
5024 | ||
5025 | return 1; | |
5026 | } | |
5027 | ||
c906108c SS |
5028 | /* Possible return values for watchpoint_check (this can't be an enum |
5029 | because of check_errors). */ | |
5030 | /* The watchpoint has been deleted. */ | |
5031 | #define WP_DELETED 1 | |
5032 | /* The value has changed. */ | |
5033 | #define WP_VALUE_CHANGED 2 | |
5034 | /* The value has not changed. */ | |
5035 | #define WP_VALUE_NOT_CHANGED 3 | |
60e1c644 PA |
5036 | /* Ignore this watchpoint, no matter if the value changed or not. */ |
5037 | #define WP_IGNORE 4 | |
c906108c SS |
5038 | |
5039 | #define BP_TEMPFLAG 1 | |
5040 | #define BP_HARDWAREFLAG 2 | |
5041 | ||
4a64f543 MS |
5042 | /* Evaluate watchpoint condition expression and check if its value |
5043 | changed. | |
553e4c11 JB |
5044 | |
5045 | P should be a pointer to struct bpstat, but is defined as a void * | |
5046 | in order for this function to be usable with catch_errors. */ | |
c906108c SS |
5047 | |
5048 | static int | |
4efb68b1 | 5049 | watchpoint_check (void *p) |
c906108c SS |
5050 | { |
5051 | bpstat bs = (bpstat) p; | |
3a5c3e22 | 5052 | struct watchpoint *b; |
c906108c SS |
5053 | struct frame_info *fr; |
5054 | int within_current_scope; | |
5055 | ||
f431efe5 | 5056 | /* BS is built from an existing struct breakpoint. */ |
2bdf28a0 | 5057 | gdb_assert (bs->breakpoint_at != NULL); |
3a5c3e22 | 5058 | b = (struct watchpoint *) bs->breakpoint_at; |
d0fb5eae | 5059 | |
f6bc2008 PA |
5060 | /* If this is a local watchpoint, we only want to check if the |
5061 | watchpoint frame is in scope if the current thread is the thread | |
5062 | that was used to create the watchpoint. */ | |
5063 | if (!watchpoint_in_thread_scope (b)) | |
60e1c644 | 5064 | return WP_IGNORE; |
f6bc2008 | 5065 | |
c906108c SS |
5066 | if (b->exp_valid_block == NULL) |
5067 | within_current_scope = 1; | |
5068 | else | |
5069 | { | |
edb3359d DJ |
5070 | struct frame_info *frame = get_current_frame (); |
5071 | struct gdbarch *frame_arch = get_frame_arch (frame); | |
5072 | CORE_ADDR frame_pc = get_frame_pc (frame); | |
5073 | ||
4a64f543 MS |
5074 | /* in_function_epilogue_p() returns a non-zero value if we're |
5075 | still in the function but the stack frame has already been | |
5076 | invalidated. Since we can't rely on the values of local | |
5077 | variables after the stack has been destroyed, we are treating | |
5078 | the watchpoint in that state as `not changed' without further | |
5079 | checking. Don't mark watchpoints as changed if the current | |
5080 | frame is in an epilogue - even if they are in some other | |
5081 | frame, our view of the stack is likely to be wrong and | |
5082 | frame_find_by_id could error out. */ | |
a0f49112 | 5083 | if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc)) |
60e1c644 | 5084 | return WP_IGNORE; |
a0f49112 | 5085 | |
101dcfbe | 5086 | fr = frame_find_by_id (b->watchpoint_frame); |
c906108c | 5087 | within_current_scope = (fr != NULL); |
69fbadd5 DJ |
5088 | |
5089 | /* If we've gotten confused in the unwinder, we might have | |
5090 | returned a frame that can't describe this variable. */ | |
edb3359d DJ |
5091 | if (within_current_scope) |
5092 | { | |
5093 | struct symbol *function; | |
5094 | ||
5095 | function = get_frame_function (fr); | |
5096 | if (function == NULL | |
5097 | || !contained_in (b->exp_valid_block, | |
5098 | SYMBOL_BLOCK_VALUE (function))) | |
5099 | within_current_scope = 0; | |
5100 | } | |
69fbadd5 | 5101 | |
edb3359d | 5102 | if (within_current_scope) |
c906108c SS |
5103 | /* If we end up stopping, the current frame will get selected |
5104 | in normal_stop. So this call to select_frame won't affect | |
5105 | the user. */ | |
0f7d239c | 5106 | select_frame (fr); |
c906108c | 5107 | } |
c5aa993b | 5108 | |
c906108c SS |
5109 | if (within_current_scope) |
5110 | { | |
4a64f543 MS |
5111 | /* We use value_{,free_to_}mark because it could be a *long* |
5112 | time before we return to the command level and call | |
5113 | free_all_values. We can't call free_all_values because we | |
5114 | might be in the middle of evaluating a function call. */ | |
c906108c | 5115 | |
0cf6dd15 | 5116 | int pc = 0; |
9c06b0b4 | 5117 | struct value *mark; |
fa4727a6 DJ |
5118 | struct value *new_val; |
5119 | ||
3a5c3e22 | 5120 | if (is_masked_watchpoint (&b->base)) |
9c06b0b4 TJB |
5121 | /* Since we don't know the exact trigger address (from |
5122 | stopped_data_address), just tell the user we've triggered | |
5123 | a mask watchpoint. */ | |
5124 | return WP_VALUE_CHANGED; | |
5125 | ||
5126 | mark = value_mark (); | |
3a1115a0 | 5127 | fetch_subexp_value (b->exp, &pc, &new_val, NULL, NULL, 0); |
218d2fc6 | 5128 | |
bb9d5f81 PP |
5129 | if (b->val_bitsize != 0) |
5130 | new_val = extract_bitfield_from_watchpoint_value (b, new_val); | |
5131 | ||
4a64f543 MS |
5132 | /* We use value_equal_contents instead of value_equal because |
5133 | the latter coerces an array to a pointer, thus comparing just | |
5134 | the address of the array instead of its contents. This is | |
5135 | not what we want. */ | |
fa4727a6 | 5136 | if ((b->val != NULL) != (new_val != NULL) |
218d2fc6 | 5137 | || (b->val != NULL && !value_equal_contents (b->val, new_val))) |
c906108c | 5138 | { |
fa4727a6 DJ |
5139 | if (new_val != NULL) |
5140 | { | |
5141 | release_value (new_val); | |
5142 | value_free_to_mark (mark); | |
5143 | } | |
c906108c SS |
5144 | bs->old_val = b->val; |
5145 | b->val = new_val; | |
fa4727a6 | 5146 | b->val_valid = 1; |
c906108c SS |
5147 | return WP_VALUE_CHANGED; |
5148 | } | |
5149 | else | |
5150 | { | |
60e1c644 | 5151 | /* Nothing changed. */ |
c906108c | 5152 | value_free_to_mark (mark); |
c906108c SS |
5153 | return WP_VALUE_NOT_CHANGED; |
5154 | } | |
5155 | } | |
5156 | else | |
5157 | { | |
79a45e25 PA |
5158 | struct ui_out *uiout = current_uiout; |
5159 | ||
c906108c | 5160 | /* This seems like the only logical thing to do because |
c5aa993b JM |
5161 | if we temporarily ignored the watchpoint, then when |
5162 | we reenter the block in which it is valid it contains | |
5163 | garbage (in the case of a function, it may have two | |
5164 | garbage values, one before and one after the prologue). | |
5165 | So we can't even detect the first assignment to it and | |
5166 | watch after that (since the garbage may or may not equal | |
5167 | the first value assigned). */ | |
348d480f PA |
5168 | /* We print all the stop information in |
5169 | breakpoint_ops->print_it, but in this case, by the time we | |
5170 | call breakpoint_ops->print_it this bp will be deleted | |
5171 | already. So we have no choice but print the information | |
5172 | here. */ | |
9dc5e2a9 | 5173 | if (ui_out_is_mi_like_p (uiout)) |
034dad6f BR |
5174 | ui_out_field_string |
5175 | (uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE)); | |
8b93c638 | 5176 | ui_out_text (uiout, "\nWatchpoint "); |
3a5c3e22 | 5177 | ui_out_field_int (uiout, "wpnum", b->base.number); |
3e43a32a MS |
5178 | ui_out_text (uiout, |
5179 | " deleted because the program has left the block in\n\ | |
8b93c638 | 5180 | which its expression is valid.\n"); |
4ce44c66 | 5181 | |
cdac0397 | 5182 | /* Make sure the watchpoint's commands aren't executed. */ |
3a5c3e22 | 5183 | decref_counted_command_line (&b->base.commands); |
d0fb5eae | 5184 | watchpoint_del_at_next_stop (b); |
c906108c SS |
5185 | |
5186 | return WP_DELETED; | |
5187 | } | |
5188 | } | |
5189 | ||
18a18393 | 5190 | /* Return true if it looks like target has stopped due to hitting |
348d480f PA |
5191 | breakpoint location BL. This function does not check if we should |
5192 | stop, only if BL explains the stop. */ | |
5193 | ||
18a18393 | 5194 | static int |
6c95b8df | 5195 | bpstat_check_location (const struct bp_location *bl, |
09ac7c10 TT |
5196 | struct address_space *aspace, CORE_ADDR bp_addr, |
5197 | const struct target_waitstatus *ws) | |
18a18393 VP |
5198 | { |
5199 | struct breakpoint *b = bl->owner; | |
5200 | ||
348d480f | 5201 | /* BL is from an existing breakpoint. */ |
2bdf28a0 JK |
5202 | gdb_assert (b != NULL); |
5203 | ||
09ac7c10 | 5204 | return b->ops->breakpoint_hit (bl, aspace, bp_addr, ws); |
18a18393 VP |
5205 | } |
5206 | ||
3a5c3e22 PA |
5207 | /* Determine if the watched values have actually changed, and we |
5208 | should stop. If not, set BS->stop to 0. */ | |
5209 | ||
18a18393 VP |
5210 | static void |
5211 | bpstat_check_watchpoint (bpstat bs) | |
5212 | { | |
2bdf28a0 | 5213 | const struct bp_location *bl; |
3a5c3e22 | 5214 | struct watchpoint *b; |
2bdf28a0 JK |
5215 | |
5216 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5217 | bl = bs->bp_location_at; |
2bdf28a0 | 5218 | gdb_assert (bl != NULL); |
3a5c3e22 | 5219 | b = (struct watchpoint *) bs->breakpoint_at; |
2bdf28a0 | 5220 | gdb_assert (b != NULL); |
18a18393 | 5221 | |
18a18393 | 5222 | { |
18a18393 VP |
5223 | int must_check_value = 0; |
5224 | ||
3a5c3e22 | 5225 | if (b->base.type == bp_watchpoint) |
18a18393 VP |
5226 | /* For a software watchpoint, we must always check the |
5227 | watched value. */ | |
5228 | must_check_value = 1; | |
5229 | else if (b->watchpoint_triggered == watch_triggered_yes) | |
5230 | /* We have a hardware watchpoint (read, write, or access) | |
5231 | and the target earlier reported an address watched by | |
5232 | this watchpoint. */ | |
5233 | must_check_value = 1; | |
5234 | else if (b->watchpoint_triggered == watch_triggered_unknown | |
3a5c3e22 | 5235 | && b->base.type == bp_hardware_watchpoint) |
18a18393 VP |
5236 | /* We were stopped by a hardware watchpoint, but the target could |
5237 | not report the data address. We must check the watchpoint's | |
5238 | value. Access and read watchpoints are out of luck; without | |
5239 | a data address, we can't figure it out. */ | |
5240 | must_check_value = 1; | |
3a5c3e22 | 5241 | |
18a18393 VP |
5242 | if (must_check_value) |
5243 | { | |
3e43a32a MS |
5244 | char *message |
5245 | = xstrprintf ("Error evaluating expression for watchpoint %d\n", | |
3a5c3e22 | 5246 | b->base.number); |
18a18393 VP |
5247 | struct cleanup *cleanups = make_cleanup (xfree, message); |
5248 | int e = catch_errors (watchpoint_check, bs, message, | |
5249 | RETURN_MASK_ALL); | |
5250 | do_cleanups (cleanups); | |
5251 | switch (e) | |
5252 | { | |
5253 | case WP_DELETED: | |
5254 | /* We've already printed what needs to be printed. */ | |
5255 | bs->print_it = print_it_done; | |
5256 | /* Stop. */ | |
5257 | break; | |
60e1c644 PA |
5258 | case WP_IGNORE: |
5259 | bs->print_it = print_it_noop; | |
5260 | bs->stop = 0; | |
5261 | break; | |
18a18393 | 5262 | case WP_VALUE_CHANGED: |
3a5c3e22 | 5263 | if (b->base.type == bp_read_watchpoint) |
18a18393 | 5264 | { |
85d721b8 PA |
5265 | /* There are two cases to consider here: |
5266 | ||
4a64f543 | 5267 | 1. We're watching the triggered memory for reads. |
85d721b8 PA |
5268 | In that case, trust the target, and always report |
5269 | the watchpoint hit to the user. Even though | |
5270 | reads don't cause value changes, the value may | |
5271 | have changed since the last time it was read, and | |
5272 | since we're not trapping writes, we will not see | |
5273 | those, and as such we should ignore our notion of | |
5274 | old value. | |
5275 | ||
4a64f543 | 5276 | 2. We're watching the triggered memory for both |
85d721b8 PA |
5277 | reads and writes. There are two ways this may |
5278 | happen: | |
5279 | ||
4a64f543 | 5280 | 2.1. This is a target that can't break on data |
85d721b8 PA |
5281 | reads only, but can break on accesses (reads or |
5282 | writes), such as e.g., x86. We detect this case | |
5283 | at the time we try to insert read watchpoints. | |
5284 | ||
4a64f543 | 5285 | 2.2. Otherwise, the target supports read |
85d721b8 PA |
5286 | watchpoints, but, the user set an access or write |
5287 | watchpoint watching the same memory as this read | |
5288 | watchpoint. | |
5289 | ||
5290 | If we're watching memory writes as well as reads, | |
5291 | ignore watchpoint hits when we find that the | |
5292 | value hasn't changed, as reads don't cause | |
5293 | changes. This still gives false positives when | |
5294 | the program writes the same value to memory as | |
5295 | what there was already in memory (we will confuse | |
5296 | it for a read), but it's much better than | |
5297 | nothing. */ | |
5298 | ||
5299 | int other_write_watchpoint = 0; | |
5300 | ||
5301 | if (bl->watchpoint_type == hw_read) | |
5302 | { | |
5303 | struct breakpoint *other_b; | |
5304 | ||
5305 | ALL_BREAKPOINTS (other_b) | |
3a5c3e22 PA |
5306 | if (other_b->type == bp_hardware_watchpoint |
5307 | || other_b->type == bp_access_watchpoint) | |
85d721b8 | 5308 | { |
3a5c3e22 PA |
5309 | struct watchpoint *other_w = |
5310 | (struct watchpoint *) other_b; | |
5311 | ||
5312 | if (other_w->watchpoint_triggered | |
5313 | == watch_triggered_yes) | |
5314 | { | |
5315 | other_write_watchpoint = 1; | |
5316 | break; | |
5317 | } | |
85d721b8 PA |
5318 | } |
5319 | } | |
5320 | ||
5321 | if (other_write_watchpoint | |
5322 | || bl->watchpoint_type == hw_access) | |
5323 | { | |
5324 | /* We're watching the same memory for writes, | |
5325 | and the value changed since the last time we | |
5326 | updated it, so this trap must be for a write. | |
5327 | Ignore it. */ | |
5328 | bs->print_it = print_it_noop; | |
5329 | bs->stop = 0; | |
5330 | } | |
18a18393 VP |
5331 | } |
5332 | break; | |
5333 | case WP_VALUE_NOT_CHANGED: | |
3a5c3e22 PA |
5334 | if (b->base.type == bp_hardware_watchpoint |
5335 | || b->base.type == bp_watchpoint) | |
18a18393 VP |
5336 | { |
5337 | /* Don't stop: write watchpoints shouldn't fire if | |
5338 | the value hasn't changed. */ | |
5339 | bs->print_it = print_it_noop; | |
5340 | bs->stop = 0; | |
5341 | } | |
5342 | /* Stop. */ | |
5343 | break; | |
5344 | default: | |
5345 | /* Can't happen. */ | |
5346 | case 0: | |
5347 | /* Error from catch_errors. */ | |
3a5c3e22 | 5348 | printf_filtered (_("Watchpoint %d deleted.\n"), b->base.number); |
d0fb5eae | 5349 | watchpoint_del_at_next_stop (b); |
18a18393 VP |
5350 | /* We've already printed what needs to be printed. */ |
5351 | bs->print_it = print_it_done; | |
5352 | break; | |
5353 | } | |
5354 | } | |
5355 | else /* must_check_value == 0 */ | |
5356 | { | |
5357 | /* This is a case where some watchpoint(s) triggered, but | |
5358 | not at the address of this watchpoint, or else no | |
5359 | watchpoint triggered after all. So don't print | |
5360 | anything for this watchpoint. */ | |
5361 | bs->print_it = print_it_noop; | |
5362 | bs->stop = 0; | |
5363 | } | |
5364 | } | |
5365 | } | |
5366 | ||
7d4df6a4 DE |
5367 | /* For breakpoints that are currently marked as telling gdb to stop, |
5368 | check conditions (condition proper, frame, thread and ignore count) | |
18a18393 VP |
5369 | of breakpoint referred to by BS. If we should not stop for this |
5370 | breakpoint, set BS->stop to 0. */ | |
f431efe5 | 5371 | |
18a18393 VP |
5372 | static void |
5373 | bpstat_check_breakpoint_conditions (bpstat bs, ptid_t ptid) | |
5374 | { | |
2bdf28a0 JK |
5375 | const struct bp_location *bl; |
5376 | struct breakpoint *b; | |
7d4df6a4 DE |
5377 | int value_is_zero = 0; |
5378 | struct expression *cond; | |
5379 | ||
5380 | gdb_assert (bs->stop); | |
2bdf28a0 JK |
5381 | |
5382 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5383 | bl = bs->bp_location_at; |
2bdf28a0 | 5384 | gdb_assert (bl != NULL); |
f431efe5 | 5385 | b = bs->breakpoint_at; |
2bdf28a0 | 5386 | gdb_assert (b != NULL); |
18a18393 | 5387 | |
b775012e LM |
5388 | /* Even if the target evaluated the condition on its end and notified GDB, we |
5389 | need to do so again since GDB does not know if we stopped due to a | |
5390 | breakpoint or a single step breakpoint. */ | |
5391 | ||
18a18393 | 5392 | if (frame_id_p (b->frame_id) |
edb3359d | 5393 | && !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ()))) |
18a18393 | 5394 | { |
7d4df6a4 DE |
5395 | bs->stop = 0; |
5396 | return; | |
5397 | } | |
60e1c644 | 5398 | |
12ab52e9 PA |
5399 | /* If this is a thread/task-specific breakpoint, don't waste cpu |
5400 | evaluating the condition if this isn't the specified | |
5401 | thread/task. */ | |
5402 | if ((b->thread != -1 && b->thread != pid_to_thread_id (ptid)) | |
5403 | || (b->task != 0 && b->task != ada_get_task_number (ptid))) | |
5404 | ||
6c1b0f7b DE |
5405 | { |
5406 | bs->stop = 0; | |
5407 | return; | |
5408 | } | |
5409 | ||
6dddc817 DE |
5410 | /* Evaluate extension language breakpoints that have a "stop" method |
5411 | implemented. */ | |
5412 | bs->stop = breakpoint_ext_lang_cond_says_stop (b); | |
7371cf6d | 5413 | |
7d4df6a4 DE |
5414 | if (is_watchpoint (b)) |
5415 | { | |
5416 | struct watchpoint *w = (struct watchpoint *) b; | |
3a5c3e22 | 5417 | |
7d4df6a4 DE |
5418 | cond = w->cond_exp; |
5419 | } | |
5420 | else | |
5421 | cond = bl->cond; | |
60e1c644 | 5422 | |
7d4df6a4 DE |
5423 | if (cond && b->disposition != disp_del_at_next_stop) |
5424 | { | |
5425 | int within_current_scope = 1; | |
5426 | struct watchpoint * w; | |
60e1c644 | 5427 | |
7d4df6a4 DE |
5428 | /* We use value_mark and value_free_to_mark because it could |
5429 | be a long time before we return to the command level and | |
5430 | call free_all_values. We can't call free_all_values | |
5431 | because we might be in the middle of evaluating a | |
5432 | function call. */ | |
5433 | struct value *mark = value_mark (); | |
5434 | ||
5435 | if (is_watchpoint (b)) | |
5436 | w = (struct watchpoint *) b; | |
5437 | else | |
5438 | w = NULL; | |
5439 | ||
5440 | /* Need to select the frame, with all that implies so that | |
5441 | the conditions will have the right context. Because we | |
5442 | use the frame, we will not see an inlined function's | |
5443 | variables when we arrive at a breakpoint at the start | |
5444 | of the inlined function; the current frame will be the | |
5445 | call site. */ | |
5446 | if (w == NULL || w->cond_exp_valid_block == NULL) | |
5447 | select_frame (get_current_frame ()); | |
5448 | else | |
18a18393 | 5449 | { |
7d4df6a4 DE |
5450 | struct frame_info *frame; |
5451 | ||
5452 | /* For local watchpoint expressions, which particular | |
5453 | instance of a local is being watched matters, so we | |
5454 | keep track of the frame to evaluate the expression | |
5455 | in. To evaluate the condition however, it doesn't | |
5456 | really matter which instantiation of the function | |
5457 | where the condition makes sense triggers the | |
5458 | watchpoint. This allows an expression like "watch | |
5459 | global if q > 10" set in `func', catch writes to | |
5460 | global on all threads that call `func', or catch | |
5461 | writes on all recursive calls of `func' by a single | |
5462 | thread. We simply always evaluate the condition in | |
5463 | the innermost frame that's executing where it makes | |
5464 | sense to evaluate the condition. It seems | |
5465 | intuitive. */ | |
5466 | frame = block_innermost_frame (w->cond_exp_valid_block); | |
5467 | if (frame != NULL) | |
5468 | select_frame (frame); | |
5469 | else | |
5470 | within_current_scope = 0; | |
18a18393 | 5471 | } |
7d4df6a4 DE |
5472 | if (within_current_scope) |
5473 | value_is_zero | |
5474 | = catch_errors (breakpoint_cond_eval, cond, | |
5475 | "Error in testing breakpoint condition:\n", | |
5476 | RETURN_MASK_ALL); | |
5477 | else | |
18a18393 | 5478 | { |
7d4df6a4 DE |
5479 | warning (_("Watchpoint condition cannot be tested " |
5480 | "in the current scope")); | |
5481 | /* If we failed to set the right context for this | |
5482 | watchpoint, unconditionally report it. */ | |
5483 | value_is_zero = 0; | |
18a18393 | 5484 | } |
7d4df6a4 DE |
5485 | /* FIXME-someday, should give breakpoint #. */ |
5486 | value_free_to_mark (mark); | |
18a18393 | 5487 | } |
7d4df6a4 DE |
5488 | |
5489 | if (cond && value_is_zero) | |
5490 | { | |
5491 | bs->stop = 0; | |
5492 | } | |
7d4df6a4 DE |
5493 | else if (b->ignore_count > 0) |
5494 | { | |
5495 | b->ignore_count--; | |
5496 | bs->stop = 0; | |
5497 | /* Increase the hit count even though we don't stop. */ | |
5498 | ++(b->hit_count); | |
5499 | observer_notify_breakpoint_modified (b); | |
5500 | } | |
18a18393 VP |
5501 | } |
5502 | ||
5503 | ||
9709f61c | 5504 | /* Get a bpstat associated with having just stopped at address |
d983da9c | 5505 | BP_ADDR in thread PTID. |
c906108c | 5506 | |
d983da9c | 5507 | Determine whether we stopped at a breakpoint, etc, or whether we |
4a64f543 MS |
5508 | don't understand this stop. Result is a chain of bpstat's such |
5509 | that: | |
c906108c | 5510 | |
c5aa993b | 5511 | if we don't understand the stop, the result is a null pointer. |
c906108c | 5512 | |
c5aa993b | 5513 | if we understand why we stopped, the result is not null. |
c906108c | 5514 | |
c5aa993b JM |
5515 | Each element of the chain refers to a particular breakpoint or |
5516 | watchpoint at which we have stopped. (We may have stopped for | |
5517 | several reasons concurrently.) | |
c906108c | 5518 | |
c5aa993b JM |
5519 | Each element of the chain has valid next, breakpoint_at, |
5520 | commands, FIXME??? fields. */ | |
c906108c SS |
5521 | |
5522 | bpstat | |
6c95b8df | 5523 | bpstat_stop_status (struct address_space *aspace, |
09ac7c10 TT |
5524 | CORE_ADDR bp_addr, ptid_t ptid, |
5525 | const struct target_waitstatus *ws) | |
c906108c | 5526 | { |
0d381245 | 5527 | struct breakpoint *b = NULL; |
afe38095 | 5528 | struct bp_location *bl; |
20874c92 | 5529 | struct bp_location *loc; |
5760d0ab JK |
5530 | /* First item of allocated bpstat's. */ |
5531 | bpstat bs_head = NULL, *bs_link = &bs_head; | |
c906108c | 5532 | /* Pointer to the last thing in the chain currently. */ |
5760d0ab | 5533 | bpstat bs; |
20874c92 | 5534 | int ix; |
429374b8 | 5535 | int need_remove_insert; |
f431efe5 | 5536 | int removed_any; |
c906108c | 5537 | |
f431efe5 PA |
5538 | /* First, build the bpstat chain with locations that explain a |
5539 | target stop, while being careful to not set the target running, | |
5540 | as that may invalidate locations (in particular watchpoint | |
5541 | locations are recreated). Resuming will happen here with | |
5542 | breakpoint conditions or watchpoint expressions that include | |
5543 | inferior function calls. */ | |
c5aa993b | 5544 | |
429374b8 JK |
5545 | ALL_BREAKPOINTS (b) |
5546 | { | |
5547 | if (!breakpoint_enabled (b) && b->enable_state != bp_permanent) | |
5548 | continue; | |
a5606eee | 5549 | |
429374b8 JK |
5550 | for (bl = b->loc; bl != NULL; bl = bl->next) |
5551 | { | |
4a64f543 MS |
5552 | /* For hardware watchpoints, we look only at the first |
5553 | location. The watchpoint_check function will work on the | |
5554 | entire expression, not the individual locations. For | |
5555 | read watchpoints, the watchpoints_triggered function has | |
5556 | checked all locations already. */ | |
429374b8 JK |
5557 | if (b->type == bp_hardware_watchpoint && bl != b->loc) |
5558 | break; | |
18a18393 | 5559 | |
f6592439 | 5560 | if (!bl->enabled || bl->shlib_disabled) |
429374b8 | 5561 | continue; |
c5aa993b | 5562 | |
09ac7c10 | 5563 | if (!bpstat_check_location (bl, aspace, bp_addr, ws)) |
429374b8 | 5564 | continue; |
c5aa993b | 5565 | |
4a64f543 MS |
5566 | /* Come here if it's a watchpoint, or if the break address |
5567 | matches. */ | |
c5aa993b | 5568 | |
4a64f543 MS |
5569 | bs = bpstat_alloc (bl, &bs_link); /* Alloc a bpstat to |
5570 | explain stop. */ | |
c5aa993b | 5571 | |
f431efe5 PA |
5572 | /* Assume we stop. Should we find a watchpoint that is not |
5573 | actually triggered, or if the condition of the breakpoint | |
5574 | evaluates as false, we'll reset 'stop' to 0. */ | |
429374b8 JK |
5575 | bs->stop = 1; |
5576 | bs->print = 1; | |
d983da9c | 5577 | |
f431efe5 PA |
5578 | /* If this is a scope breakpoint, mark the associated |
5579 | watchpoint as triggered so that we will handle the | |
5580 | out-of-scope event. We'll get to the watchpoint next | |
5581 | iteration. */ | |
d0fb5eae | 5582 | if (b->type == bp_watchpoint_scope && b->related_breakpoint != b) |
3a5c3e22 PA |
5583 | { |
5584 | struct watchpoint *w = (struct watchpoint *) b->related_breakpoint; | |
5585 | ||
5586 | w->watchpoint_triggered = watch_triggered_yes; | |
5587 | } | |
f431efe5 PA |
5588 | } |
5589 | } | |
5590 | ||
5591 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
5592 | { | |
f1310107 | 5593 | if (breakpoint_location_address_match (loc, aspace, bp_addr)) |
f431efe5 | 5594 | { |
5760d0ab | 5595 | bs = bpstat_alloc (loc, &bs_link); |
f431efe5 PA |
5596 | /* For hits of moribund locations, we should just proceed. */ |
5597 | bs->stop = 0; | |
5598 | bs->print = 0; | |
5599 | bs->print_it = print_it_noop; | |
5600 | } | |
5601 | } | |
5602 | ||
edcc5120 TT |
5603 | /* A bit of special processing for shlib breakpoints. We need to |
5604 | process solib loading here, so that the lists of loaded and | |
5605 | unloaded libraries are correct before we handle "catch load" and | |
5606 | "catch unload". */ | |
5607 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
5608 | { | |
5d268276 | 5609 | if (bs->breakpoint_at && bs->breakpoint_at->type == bp_shlib_event) |
edcc5120 TT |
5610 | { |
5611 | handle_solib_event (); | |
5612 | break; | |
5613 | } | |
5614 | } | |
5615 | ||
f431efe5 PA |
5616 | /* Now go through the locations that caused the target to stop, and |
5617 | check whether we're interested in reporting this stop to higher | |
5618 | layers, or whether we should resume the target transparently. */ | |
5619 | ||
5620 | removed_any = 0; | |
5621 | ||
5760d0ab | 5622 | for (bs = bs_head; bs != NULL; bs = bs->next) |
f431efe5 PA |
5623 | { |
5624 | if (!bs->stop) | |
5625 | continue; | |
5626 | ||
f431efe5 | 5627 | b = bs->breakpoint_at; |
348d480f PA |
5628 | b->ops->check_status (bs); |
5629 | if (bs->stop) | |
28010a5d | 5630 | { |
348d480f | 5631 | bpstat_check_breakpoint_conditions (bs, ptid); |
f431efe5 | 5632 | |
429374b8 JK |
5633 | if (bs->stop) |
5634 | { | |
5635 | ++(b->hit_count); | |
8d3788bd | 5636 | observer_notify_breakpoint_modified (b); |
c906108c | 5637 | |
4a64f543 | 5638 | /* We will stop here. */ |
429374b8 JK |
5639 | if (b->disposition == disp_disable) |
5640 | { | |
816338b5 SS |
5641 | --(b->enable_count); |
5642 | if (b->enable_count <= 0 | |
5643 | && b->enable_state != bp_permanent) | |
429374b8 | 5644 | b->enable_state = bp_disabled; |
f431efe5 | 5645 | removed_any = 1; |
429374b8 JK |
5646 | } |
5647 | if (b->silent) | |
5648 | bs->print = 0; | |
5649 | bs->commands = b->commands; | |
9add0f1b | 5650 | incref_counted_command_line (bs->commands); |
abf85f46 JK |
5651 | if (command_line_is_silent (bs->commands |
5652 | ? bs->commands->commands : NULL)) | |
5653 | bs->print = 0; | |
9d6e6e84 HZ |
5654 | |
5655 | b->ops->after_condition_true (bs); | |
429374b8 JK |
5656 | } |
5657 | ||
348d480f | 5658 | } |
a9b3a50f PA |
5659 | |
5660 | /* Print nothing for this entry if we don't stop or don't | |
5661 | print. */ | |
5662 | if (!bs->stop || !bs->print) | |
5663 | bs->print_it = print_it_noop; | |
429374b8 | 5664 | } |
876fa593 | 5665 | |
d983da9c DJ |
5666 | /* If we aren't stopping, the value of some hardware watchpoint may |
5667 | not have changed, but the intermediate memory locations we are | |
5668 | watching may have. Don't bother if we're stopping; this will get | |
5669 | done later. */ | |
d832cb68 | 5670 | need_remove_insert = 0; |
5760d0ab JK |
5671 | if (! bpstat_causes_stop (bs_head)) |
5672 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
d983da9c | 5673 | if (!bs->stop |
f431efe5 PA |
5674 | && bs->breakpoint_at |
5675 | && is_hardware_watchpoint (bs->breakpoint_at)) | |
d983da9c | 5676 | { |
3a5c3e22 PA |
5677 | struct watchpoint *w = (struct watchpoint *) bs->breakpoint_at; |
5678 | ||
5679 | update_watchpoint (w, 0 /* don't reparse. */); | |
d832cb68 | 5680 | need_remove_insert = 1; |
d983da9c DJ |
5681 | } |
5682 | ||
d832cb68 | 5683 | if (need_remove_insert) |
44702360 | 5684 | update_global_location_list (UGLL_MAY_INSERT); |
f431efe5 | 5685 | else if (removed_any) |
44702360 | 5686 | update_global_location_list (UGLL_DONT_INSERT); |
d832cb68 | 5687 | |
5760d0ab | 5688 | return bs_head; |
c906108c | 5689 | } |
628fe4e4 JK |
5690 | |
5691 | static void | |
5692 | handle_jit_event (void) | |
5693 | { | |
5694 | struct frame_info *frame; | |
5695 | struct gdbarch *gdbarch; | |
5696 | ||
5697 | /* Switch terminal for any messages produced by | |
5698 | breakpoint_re_set. */ | |
5699 | target_terminal_ours_for_output (); | |
5700 | ||
5701 | frame = get_current_frame (); | |
5702 | gdbarch = get_frame_arch (frame); | |
5703 | ||
5704 | jit_event_handler (gdbarch); | |
5705 | ||
5706 | target_terminal_inferior (); | |
5707 | } | |
5708 | ||
5709 | /* Prepare WHAT final decision for infrun. */ | |
5710 | ||
5711 | /* Decide what infrun needs to do with this bpstat. */ | |
5712 | ||
c906108c | 5713 | struct bpstat_what |
0e30163f | 5714 | bpstat_what (bpstat bs_head) |
c906108c | 5715 | { |
c906108c | 5716 | struct bpstat_what retval; |
628fe4e4 | 5717 | int jit_event = 0; |
0e30163f | 5718 | bpstat bs; |
c906108c | 5719 | |
628fe4e4 | 5720 | retval.main_action = BPSTAT_WHAT_KEEP_CHECKING; |
aa7d318d | 5721 | retval.call_dummy = STOP_NONE; |
186c406b | 5722 | retval.is_longjmp = 0; |
628fe4e4 | 5723 | |
0e30163f | 5724 | for (bs = bs_head; bs != NULL; bs = bs->next) |
c906108c | 5725 | { |
628fe4e4 JK |
5726 | /* Extract this BS's action. After processing each BS, we check |
5727 | if its action overrides all we've seem so far. */ | |
5728 | enum bpstat_what_main_action this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5729 | enum bptype bptype; | |
5730 | ||
c906108c | 5731 | if (bs->breakpoint_at == NULL) |
628fe4e4 JK |
5732 | { |
5733 | /* I suspect this can happen if it was a momentary | |
5734 | breakpoint which has since been deleted. */ | |
5735 | bptype = bp_none; | |
5736 | } | |
20874c92 | 5737 | else |
f431efe5 | 5738 | bptype = bs->breakpoint_at->type; |
628fe4e4 JK |
5739 | |
5740 | switch (bptype) | |
c906108c SS |
5741 | { |
5742 | case bp_none: | |
628fe4e4 | 5743 | break; |
c906108c SS |
5744 | case bp_breakpoint: |
5745 | case bp_hardware_breakpoint: | |
5746 | case bp_until: | |
5747 | case bp_finish: | |
a9b3a50f | 5748 | case bp_shlib_event: |
c906108c SS |
5749 | if (bs->stop) |
5750 | { | |
5751 | if (bs->print) | |
628fe4e4 | 5752 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5753 | else |
628fe4e4 | 5754 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5755 | } |
5756 | else | |
628fe4e4 | 5757 | this_action = BPSTAT_WHAT_SINGLE; |
c906108c SS |
5758 | break; |
5759 | case bp_watchpoint: | |
5760 | case bp_hardware_watchpoint: | |
5761 | case bp_read_watchpoint: | |
5762 | case bp_access_watchpoint: | |
5763 | if (bs->stop) | |
5764 | { | |
5765 | if (bs->print) | |
628fe4e4 | 5766 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5767 | else |
628fe4e4 | 5768 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5769 | } |
5770 | else | |
628fe4e4 JK |
5771 | { |
5772 | /* There was a watchpoint, but we're not stopping. | |
5773 | This requires no further action. */ | |
5774 | } | |
c906108c SS |
5775 | break; |
5776 | case bp_longjmp: | |
e2e4d78b | 5777 | case bp_longjmp_call_dummy: |
186c406b | 5778 | case bp_exception: |
628fe4e4 | 5779 | this_action = BPSTAT_WHAT_SET_LONGJMP_RESUME; |
e2e4d78b | 5780 | retval.is_longjmp = bptype != bp_exception; |
c906108c SS |
5781 | break; |
5782 | case bp_longjmp_resume: | |
186c406b | 5783 | case bp_exception_resume: |
628fe4e4 | 5784 | this_action = BPSTAT_WHAT_CLEAR_LONGJMP_RESUME; |
186c406b | 5785 | retval.is_longjmp = bptype == bp_longjmp_resume; |
c906108c SS |
5786 | break; |
5787 | case bp_step_resume: | |
5788 | if (bs->stop) | |
628fe4e4 JK |
5789 | this_action = BPSTAT_WHAT_STEP_RESUME; |
5790 | else | |
c906108c | 5791 | { |
628fe4e4 JK |
5792 | /* It is for the wrong frame. */ |
5793 | this_action = BPSTAT_WHAT_SINGLE; | |
c906108c | 5794 | } |
c906108c | 5795 | break; |
2c03e5be PA |
5796 | case bp_hp_step_resume: |
5797 | if (bs->stop) | |
5798 | this_action = BPSTAT_WHAT_HP_STEP_RESUME; | |
5799 | else | |
5800 | { | |
5801 | /* It is for the wrong frame. */ | |
5802 | this_action = BPSTAT_WHAT_SINGLE; | |
5803 | } | |
5804 | break; | |
c906108c | 5805 | case bp_watchpoint_scope: |
c4093a6a | 5806 | case bp_thread_event: |
1900040c | 5807 | case bp_overlay_event: |
0fd8e87f | 5808 | case bp_longjmp_master: |
aa7d318d | 5809 | case bp_std_terminate_master: |
186c406b | 5810 | case bp_exception_master: |
628fe4e4 | 5811 | this_action = BPSTAT_WHAT_SINGLE; |
c4093a6a | 5812 | break; |
ce78b96d | 5813 | case bp_catchpoint: |
c5aa993b JM |
5814 | if (bs->stop) |
5815 | { | |
5816 | if (bs->print) | |
628fe4e4 | 5817 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c5aa993b | 5818 | else |
628fe4e4 | 5819 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c5aa993b JM |
5820 | } |
5821 | else | |
628fe4e4 JK |
5822 | { |
5823 | /* There was a catchpoint, but we're not stopping. | |
5824 | This requires no further action. */ | |
5825 | } | |
5826 | break; | |
628fe4e4 JK |
5827 | case bp_jit_event: |
5828 | jit_event = 1; | |
5829 | this_action = BPSTAT_WHAT_SINGLE; | |
c5aa993b | 5830 | break; |
c906108c | 5831 | case bp_call_dummy: |
53a5351d JM |
5832 | /* Make sure the action is stop (silent or noisy), |
5833 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5834 | retval.call_dummy = STOP_STACK_DUMMY; |
628fe4e4 | 5835 | this_action = BPSTAT_WHAT_STOP_SILENT; |
aa7d318d TT |
5836 | break; |
5837 | case bp_std_terminate: | |
5838 | /* Make sure the action is stop (silent or noisy), | |
5839 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5840 | retval.call_dummy = STOP_STD_TERMINATE; |
628fe4e4 | 5841 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c | 5842 | break; |
1042e4c0 | 5843 | case bp_tracepoint: |
7a697b8d | 5844 | case bp_fast_tracepoint: |
0fb4aa4b | 5845 | case bp_static_tracepoint: |
1042e4c0 SS |
5846 | /* Tracepoint hits should not be reported back to GDB, and |
5847 | if one got through somehow, it should have been filtered | |
5848 | out already. */ | |
5849 | internal_error (__FILE__, __LINE__, | |
7a697b8d | 5850 | _("bpstat_what: tracepoint encountered")); |
0e30163f JK |
5851 | break; |
5852 | case bp_gnu_ifunc_resolver: | |
5853 | /* Step over it (and insert bp_gnu_ifunc_resolver_return). */ | |
5854 | this_action = BPSTAT_WHAT_SINGLE; | |
5855 | break; | |
5856 | case bp_gnu_ifunc_resolver_return: | |
5857 | /* The breakpoint will be removed, execution will restart from the | |
5858 | PC of the former breakpoint. */ | |
5859 | this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5860 | break; | |
e7e0cddf SS |
5861 | |
5862 | case bp_dprintf: | |
a11cfd87 HZ |
5863 | if (bs->stop) |
5864 | this_action = BPSTAT_WHAT_STOP_SILENT; | |
5865 | else | |
5866 | this_action = BPSTAT_WHAT_SINGLE; | |
e7e0cddf SS |
5867 | break; |
5868 | ||
628fe4e4 JK |
5869 | default: |
5870 | internal_error (__FILE__, __LINE__, | |
5871 | _("bpstat_what: unhandled bptype %d"), (int) bptype); | |
c906108c | 5872 | } |
628fe4e4 JK |
5873 | |
5874 | retval.main_action = max (retval.main_action, this_action); | |
c906108c | 5875 | } |
628fe4e4 | 5876 | |
0e30163f JK |
5877 | /* These operations may affect the bs->breakpoint_at state so they are |
5878 | delayed after MAIN_ACTION is decided above. */ | |
5879 | ||
628fe4e4 JK |
5880 | if (jit_event) |
5881 | { | |
5882 | if (debug_infrun) | |
5883 | fprintf_unfiltered (gdb_stdlog, "bpstat_what: bp_jit_event\n"); | |
5884 | ||
5885 | handle_jit_event (); | |
5886 | } | |
5887 | ||
0e30163f JK |
5888 | for (bs = bs_head; bs != NULL; bs = bs->next) |
5889 | { | |
5890 | struct breakpoint *b = bs->breakpoint_at; | |
5891 | ||
5892 | if (b == NULL) | |
5893 | continue; | |
5894 | switch (b->type) | |
5895 | { | |
5896 | case bp_gnu_ifunc_resolver: | |
5897 | gnu_ifunc_resolver_stop (b); | |
5898 | break; | |
5899 | case bp_gnu_ifunc_resolver_return: | |
5900 | gnu_ifunc_resolver_return_stop (b); | |
5901 | break; | |
5902 | } | |
5903 | } | |
5904 | ||
c906108c SS |
5905 | return retval; |
5906 | } | |
5907 | ||
5908 | /* Nonzero if we should step constantly (e.g. watchpoints on machines | |
5909 | without hardware support). This isn't related to a specific bpstat, | |
5910 | just to things like whether watchpoints are set. */ | |
5911 | ||
c5aa993b | 5912 | int |
fba45db2 | 5913 | bpstat_should_step (void) |
c906108c SS |
5914 | { |
5915 | struct breakpoint *b; | |
cc59ec59 | 5916 | |
c906108c | 5917 | ALL_BREAKPOINTS (b) |
717a8278 | 5918 | if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL) |
3172dc30 | 5919 | return 1; |
c906108c SS |
5920 | return 0; |
5921 | } | |
5922 | ||
67822962 PA |
5923 | int |
5924 | bpstat_causes_stop (bpstat bs) | |
5925 | { | |
5926 | for (; bs != NULL; bs = bs->next) | |
5927 | if (bs->stop) | |
5928 | return 1; | |
5929 | ||
5930 | return 0; | |
5931 | } | |
5932 | ||
c906108c | 5933 | \f |
c5aa993b | 5934 | |
170b53b2 UW |
5935 | /* Compute a string of spaces suitable to indent the next line |
5936 | so it starts at the position corresponding to the table column | |
5937 | named COL_NAME in the currently active table of UIOUT. */ | |
5938 | ||
5939 | static char * | |
5940 | wrap_indent_at_field (struct ui_out *uiout, const char *col_name) | |
5941 | { | |
5942 | static char wrap_indent[80]; | |
5943 | int i, total_width, width, align; | |
5944 | char *text; | |
5945 | ||
5946 | total_width = 0; | |
5947 | for (i = 1; ui_out_query_field (uiout, i, &width, &align, &text); i++) | |
5948 | { | |
5949 | if (strcmp (text, col_name) == 0) | |
5950 | { | |
5951 | gdb_assert (total_width < sizeof wrap_indent); | |
5952 | memset (wrap_indent, ' ', total_width); | |
5953 | wrap_indent[total_width] = 0; | |
5954 | ||
5955 | return wrap_indent; | |
5956 | } | |
5957 | ||
5958 | total_width += width + 1; | |
5959 | } | |
5960 | ||
5961 | return NULL; | |
5962 | } | |
5963 | ||
b775012e LM |
5964 | /* Determine if the locations of this breakpoint will have their conditions |
5965 | evaluated by the target, host or a mix of both. Returns the following: | |
5966 | ||
5967 | "host": Host evals condition. | |
5968 | "host or target": Host or Target evals condition. | |
5969 | "target": Target evals condition. | |
5970 | */ | |
5971 | ||
5972 | static const char * | |
5973 | bp_condition_evaluator (struct breakpoint *b) | |
5974 | { | |
5975 | struct bp_location *bl; | |
5976 | char host_evals = 0; | |
5977 | char target_evals = 0; | |
5978 | ||
5979 | if (!b) | |
5980 | return NULL; | |
5981 | ||
5982 | if (!is_breakpoint (b)) | |
5983 | return NULL; | |
5984 | ||
5985 | if (gdb_evaluates_breakpoint_condition_p () | |
5986 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
5987 | return condition_evaluation_host; | |
5988 | ||
5989 | for (bl = b->loc; bl; bl = bl->next) | |
5990 | { | |
5991 | if (bl->cond_bytecode) | |
5992 | target_evals++; | |
5993 | else | |
5994 | host_evals++; | |
5995 | } | |
5996 | ||
5997 | if (host_evals && target_evals) | |
5998 | return condition_evaluation_both; | |
5999 | else if (target_evals) | |
6000 | return condition_evaluation_target; | |
6001 | else | |
6002 | return condition_evaluation_host; | |
6003 | } | |
6004 | ||
6005 | /* Determine the breakpoint location's condition evaluator. This is | |
6006 | similar to bp_condition_evaluator, but for locations. */ | |
6007 | ||
6008 | static const char * | |
6009 | bp_location_condition_evaluator (struct bp_location *bl) | |
6010 | { | |
6011 | if (bl && !is_breakpoint (bl->owner)) | |
6012 | return NULL; | |
6013 | ||
6014 | if (gdb_evaluates_breakpoint_condition_p () | |
6015 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
6016 | return condition_evaluation_host; | |
6017 | ||
6018 | if (bl && bl->cond_bytecode) | |
6019 | return condition_evaluation_target; | |
6020 | else | |
6021 | return condition_evaluation_host; | |
6022 | } | |
6023 | ||
859825b8 JK |
6024 | /* Print the LOC location out of the list of B->LOC locations. */ |
6025 | ||
170b53b2 UW |
6026 | static void |
6027 | print_breakpoint_location (struct breakpoint *b, | |
6028 | struct bp_location *loc) | |
0d381245 | 6029 | { |
79a45e25 | 6030 | struct ui_out *uiout = current_uiout; |
6c95b8df PA |
6031 | struct cleanup *old_chain = save_current_program_space (); |
6032 | ||
859825b8 JK |
6033 | if (loc != NULL && loc->shlib_disabled) |
6034 | loc = NULL; | |
6035 | ||
6c95b8df PA |
6036 | if (loc != NULL) |
6037 | set_current_program_space (loc->pspace); | |
6038 | ||
56435ebe TT |
6039 | if (b->display_canonical) |
6040 | ui_out_field_string (uiout, "what", b->addr_string); | |
2f202fde | 6041 | else if (loc && loc->symtab) |
0d381245 VP |
6042 | { |
6043 | struct symbol *sym | |
6044 | = find_pc_sect_function (loc->address, loc->section); | |
6045 | if (sym) | |
6046 | { | |
6047 | ui_out_text (uiout, "in "); | |
6048 | ui_out_field_string (uiout, "func", | |
6049 | SYMBOL_PRINT_NAME (sym)); | |
170b53b2 UW |
6050 | ui_out_text (uiout, " "); |
6051 | ui_out_wrap_hint (uiout, wrap_indent_at_field (uiout, "what")); | |
6052 | ui_out_text (uiout, "at "); | |
0d381245 | 6053 | } |
05cba821 JK |
6054 | ui_out_field_string (uiout, "file", |
6055 | symtab_to_filename_for_display (loc->symtab)); | |
0d381245 | 6056 | ui_out_text (uiout, ":"); |
05cba821 | 6057 | |
0d381245 | 6058 | if (ui_out_is_mi_like_p (uiout)) |
2f202fde JK |
6059 | ui_out_field_string (uiout, "fullname", |
6060 | symtab_to_fullname (loc->symtab)); | |
0d381245 | 6061 | |
f8eba3c6 | 6062 | ui_out_field_int (uiout, "line", loc->line_number); |
0d381245 | 6063 | } |
859825b8 | 6064 | else if (loc) |
0d381245 | 6065 | { |
f99d8bf4 PA |
6066 | struct ui_file *stb = mem_fileopen (); |
6067 | struct cleanup *stb_chain = make_cleanup_ui_file_delete (stb); | |
170b53b2 | 6068 | |
f99d8bf4 | 6069 | print_address_symbolic (loc->gdbarch, loc->address, stb, |
22e722e1 | 6070 | demangle, ""); |
0d381245 | 6071 | ui_out_field_stream (uiout, "at", stb); |
170b53b2 UW |
6072 | |
6073 | do_cleanups (stb_chain); | |
0d381245 | 6074 | } |
859825b8 JK |
6075 | else |
6076 | ui_out_field_string (uiout, "pending", b->addr_string); | |
6c95b8df | 6077 | |
b775012e LM |
6078 | if (loc && is_breakpoint (b) |
6079 | && breakpoint_condition_evaluation_mode () == condition_evaluation_target | |
6080 | && bp_condition_evaluator (b) == condition_evaluation_both) | |
6081 | { | |
6082 | ui_out_text (uiout, " ("); | |
6083 | ui_out_field_string (uiout, "evaluated-by", | |
6084 | bp_location_condition_evaluator (loc)); | |
6085 | ui_out_text (uiout, ")"); | |
6086 | } | |
6087 | ||
6c95b8df | 6088 | do_cleanups (old_chain); |
0d381245 VP |
6089 | } |
6090 | ||
269b11a2 PA |
6091 | static const char * |
6092 | bptype_string (enum bptype type) | |
c906108c | 6093 | { |
c4093a6a JM |
6094 | struct ep_type_description |
6095 | { | |
6096 | enum bptype type; | |
6097 | char *description; | |
6098 | }; | |
6099 | static struct ep_type_description bptypes[] = | |
c906108c | 6100 | { |
c5aa993b JM |
6101 | {bp_none, "?deleted?"}, |
6102 | {bp_breakpoint, "breakpoint"}, | |
c906108c | 6103 | {bp_hardware_breakpoint, "hw breakpoint"}, |
c5aa993b JM |
6104 | {bp_until, "until"}, |
6105 | {bp_finish, "finish"}, | |
6106 | {bp_watchpoint, "watchpoint"}, | |
c906108c | 6107 | {bp_hardware_watchpoint, "hw watchpoint"}, |
c5aa993b JM |
6108 | {bp_read_watchpoint, "read watchpoint"}, |
6109 | {bp_access_watchpoint, "acc watchpoint"}, | |
6110 | {bp_longjmp, "longjmp"}, | |
6111 | {bp_longjmp_resume, "longjmp resume"}, | |
e2e4d78b | 6112 | {bp_longjmp_call_dummy, "longjmp for call dummy"}, |
186c406b TT |
6113 | {bp_exception, "exception"}, |
6114 | {bp_exception_resume, "exception resume"}, | |
c5aa993b | 6115 | {bp_step_resume, "step resume"}, |
2c03e5be | 6116 | {bp_hp_step_resume, "high-priority step resume"}, |
c5aa993b JM |
6117 | {bp_watchpoint_scope, "watchpoint scope"}, |
6118 | {bp_call_dummy, "call dummy"}, | |
aa7d318d | 6119 | {bp_std_terminate, "std::terminate"}, |
c5aa993b | 6120 | {bp_shlib_event, "shlib events"}, |
c4093a6a | 6121 | {bp_thread_event, "thread events"}, |
1900040c | 6122 | {bp_overlay_event, "overlay events"}, |
0fd8e87f | 6123 | {bp_longjmp_master, "longjmp master"}, |
aa7d318d | 6124 | {bp_std_terminate_master, "std::terminate master"}, |
186c406b | 6125 | {bp_exception_master, "exception master"}, |
ce78b96d | 6126 | {bp_catchpoint, "catchpoint"}, |
1042e4c0 | 6127 | {bp_tracepoint, "tracepoint"}, |
7a697b8d | 6128 | {bp_fast_tracepoint, "fast tracepoint"}, |
0fb4aa4b | 6129 | {bp_static_tracepoint, "static tracepoint"}, |
e7e0cddf | 6130 | {bp_dprintf, "dprintf"}, |
4efc6507 | 6131 | {bp_jit_event, "jit events"}, |
0e30163f JK |
6132 | {bp_gnu_ifunc_resolver, "STT_GNU_IFUNC resolver"}, |
6133 | {bp_gnu_ifunc_resolver_return, "STT_GNU_IFUNC resolver return"}, | |
c5aa993b | 6134 | }; |
269b11a2 PA |
6135 | |
6136 | if (((int) type >= (sizeof (bptypes) / sizeof (bptypes[0]))) | |
6137 | || ((int) type != bptypes[(int) type].type)) | |
6138 | internal_error (__FILE__, __LINE__, | |
6139 | _("bptypes table does not describe type #%d."), | |
6140 | (int) type); | |
6141 | ||
6142 | return bptypes[(int) type].description; | |
6143 | } | |
6144 | ||
998580f1 MK |
6145 | /* For MI, output a field named 'thread-groups' with a list as the value. |
6146 | For CLI, prefix the list with the string 'inf'. */ | |
6147 | ||
6148 | static void | |
6149 | output_thread_groups (struct ui_out *uiout, | |
6150 | const char *field_name, | |
6151 | VEC(int) *inf_num, | |
6152 | int mi_only) | |
6153 | { | |
752eb8b4 | 6154 | struct cleanup *back_to; |
998580f1 MK |
6155 | int is_mi = ui_out_is_mi_like_p (uiout); |
6156 | int inf; | |
6157 | int i; | |
6158 | ||
6159 | /* For backward compatibility, don't display inferiors in CLI unless | |
6160 | there are several. Always display them for MI. */ | |
6161 | if (!is_mi && mi_only) | |
6162 | return; | |
6163 | ||
752eb8b4 TT |
6164 | back_to = make_cleanup_ui_out_list_begin_end (uiout, field_name); |
6165 | ||
998580f1 MK |
6166 | for (i = 0; VEC_iterate (int, inf_num, i, inf); ++i) |
6167 | { | |
6168 | if (is_mi) | |
6169 | { | |
6170 | char mi_group[10]; | |
6171 | ||
6172 | xsnprintf (mi_group, sizeof (mi_group), "i%d", inf); | |
6173 | ui_out_field_string (uiout, NULL, mi_group); | |
6174 | } | |
6175 | else | |
6176 | { | |
6177 | if (i == 0) | |
6178 | ui_out_text (uiout, " inf "); | |
6179 | else | |
6180 | ui_out_text (uiout, ", "); | |
6181 | ||
6182 | ui_out_text (uiout, plongest (inf)); | |
6183 | } | |
6184 | } | |
6185 | ||
6186 | do_cleanups (back_to); | |
6187 | } | |
6188 | ||
269b11a2 PA |
6189 | /* Print B to gdb_stdout. */ |
6190 | ||
6191 | static void | |
6192 | print_one_breakpoint_location (struct breakpoint *b, | |
6193 | struct bp_location *loc, | |
6194 | int loc_number, | |
6195 | struct bp_location **last_loc, | |
269b11a2 PA |
6196 | int allflag) |
6197 | { | |
6198 | struct command_line *l; | |
c2c6d25f | 6199 | static char bpenables[] = "nynny"; |
c906108c | 6200 | |
79a45e25 | 6201 | struct ui_out *uiout = current_uiout; |
0d381245 VP |
6202 | int header_of_multiple = 0; |
6203 | int part_of_multiple = (loc != NULL); | |
79a45b7d TT |
6204 | struct value_print_options opts; |
6205 | ||
6206 | get_user_print_options (&opts); | |
0d381245 VP |
6207 | |
6208 | gdb_assert (!loc || loc_number != 0); | |
4a64f543 MS |
6209 | /* See comment in print_one_breakpoint concerning treatment of |
6210 | breakpoints with single disabled location. */ | |
0d381245 VP |
6211 | if (loc == NULL |
6212 | && (b->loc != NULL | |
6213 | && (b->loc->next != NULL || !b->loc->enabled))) | |
6214 | header_of_multiple = 1; | |
6215 | if (loc == NULL) | |
6216 | loc = b->loc; | |
6217 | ||
c4093a6a JM |
6218 | annotate_record (); |
6219 | ||
6220 | /* 1 */ | |
6221 | annotate_field (0); | |
0d381245 VP |
6222 | if (part_of_multiple) |
6223 | { | |
6224 | char *formatted; | |
0c6773c1 | 6225 | formatted = xstrprintf ("%d.%d", b->number, loc_number); |
0d381245 VP |
6226 | ui_out_field_string (uiout, "number", formatted); |
6227 | xfree (formatted); | |
6228 | } | |
6229 | else | |
6230 | { | |
6231 | ui_out_field_int (uiout, "number", b->number); | |
6232 | } | |
c4093a6a JM |
6233 | |
6234 | /* 2 */ | |
6235 | annotate_field (1); | |
0d381245 VP |
6236 | if (part_of_multiple) |
6237 | ui_out_field_skip (uiout, "type"); | |
269b11a2 PA |
6238 | else |
6239 | ui_out_field_string (uiout, "type", bptype_string (b->type)); | |
c4093a6a JM |
6240 | |
6241 | /* 3 */ | |
6242 | annotate_field (2); | |
0d381245 VP |
6243 | if (part_of_multiple) |
6244 | ui_out_field_skip (uiout, "disp"); | |
6245 | else | |
2cec12e5 | 6246 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); |
0d381245 | 6247 | |
c4093a6a JM |
6248 | |
6249 | /* 4 */ | |
6250 | annotate_field (3); | |
0d381245 | 6251 | if (part_of_multiple) |
54e52265 | 6252 | ui_out_field_string (uiout, "enabled", loc->enabled ? "y" : "n"); |
0d381245 | 6253 | else |
4a64f543 MS |
6254 | ui_out_field_fmt (uiout, "enabled", "%c", |
6255 | bpenables[(int) b->enable_state]); | |
54e52265 | 6256 | ui_out_spaces (uiout, 2); |
0d381245 | 6257 | |
c4093a6a JM |
6258 | |
6259 | /* 5 and 6 */ | |
3086aeae | 6260 | if (b->ops != NULL && b->ops->print_one != NULL) |
0d381245 | 6261 | { |
4a64f543 MS |
6262 | /* Although the print_one can possibly print all locations, |
6263 | calling it here is not likely to get any nice result. So, | |
6264 | make sure there's just one location. */ | |
0d381245 | 6265 | gdb_assert (b->loc == NULL || b->loc->next == NULL); |
a6d9a66e | 6266 | b->ops->print_one (b, last_loc); |
0d381245 | 6267 | } |
3086aeae DJ |
6268 | else |
6269 | switch (b->type) | |
6270 | { | |
6271 | case bp_none: | |
6272 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 6273 | _("print_one_breakpoint: bp_none encountered\n")); |
3086aeae | 6274 | break; |
c906108c | 6275 | |
3086aeae DJ |
6276 | case bp_watchpoint: |
6277 | case bp_hardware_watchpoint: | |
6278 | case bp_read_watchpoint: | |
6279 | case bp_access_watchpoint: | |
3a5c3e22 PA |
6280 | { |
6281 | struct watchpoint *w = (struct watchpoint *) b; | |
6282 | ||
6283 | /* Field 4, the address, is omitted (which makes the columns | |
6284 | not line up too nicely with the headers, but the effect | |
6285 | is relatively readable). */ | |
6286 | if (opts.addressprint) | |
6287 | ui_out_field_skip (uiout, "addr"); | |
6288 | annotate_field (5); | |
6289 | ui_out_field_string (uiout, "what", w->exp_string); | |
6290 | } | |
3086aeae DJ |
6291 | break; |
6292 | ||
3086aeae DJ |
6293 | case bp_breakpoint: |
6294 | case bp_hardware_breakpoint: | |
6295 | case bp_until: | |
6296 | case bp_finish: | |
6297 | case bp_longjmp: | |
6298 | case bp_longjmp_resume: | |
e2e4d78b | 6299 | case bp_longjmp_call_dummy: |
186c406b TT |
6300 | case bp_exception: |
6301 | case bp_exception_resume: | |
3086aeae | 6302 | case bp_step_resume: |
2c03e5be | 6303 | case bp_hp_step_resume: |
3086aeae DJ |
6304 | case bp_watchpoint_scope: |
6305 | case bp_call_dummy: | |
aa7d318d | 6306 | case bp_std_terminate: |
3086aeae DJ |
6307 | case bp_shlib_event: |
6308 | case bp_thread_event: | |
6309 | case bp_overlay_event: | |
0fd8e87f | 6310 | case bp_longjmp_master: |
aa7d318d | 6311 | case bp_std_terminate_master: |
186c406b | 6312 | case bp_exception_master: |
1042e4c0 | 6313 | case bp_tracepoint: |
7a697b8d | 6314 | case bp_fast_tracepoint: |
0fb4aa4b | 6315 | case bp_static_tracepoint: |
e7e0cddf | 6316 | case bp_dprintf: |
4efc6507 | 6317 | case bp_jit_event: |
0e30163f JK |
6318 | case bp_gnu_ifunc_resolver: |
6319 | case bp_gnu_ifunc_resolver_return: | |
79a45b7d | 6320 | if (opts.addressprint) |
3086aeae DJ |
6321 | { |
6322 | annotate_field (4); | |
54e52265 | 6323 | if (header_of_multiple) |
0d381245 | 6324 | ui_out_field_string (uiout, "addr", "<MULTIPLE>"); |
e9bbd7c5 | 6325 | else if (b->loc == NULL || loc->shlib_disabled) |
54e52265 | 6326 | ui_out_field_string (uiout, "addr", "<PENDING>"); |
0101ce28 | 6327 | else |
5af949e3 UW |
6328 | ui_out_field_core_addr (uiout, "addr", |
6329 | loc->gdbarch, loc->address); | |
3086aeae DJ |
6330 | } |
6331 | annotate_field (5); | |
0d381245 | 6332 | if (!header_of_multiple) |
170b53b2 | 6333 | print_breakpoint_location (b, loc); |
0d381245 | 6334 | if (b->loc) |
a6d9a66e | 6335 | *last_loc = b->loc; |
3086aeae DJ |
6336 | break; |
6337 | } | |
c906108c | 6338 | |
6c95b8df | 6339 | |
998580f1 | 6340 | if (loc != NULL && !header_of_multiple) |
6c95b8df PA |
6341 | { |
6342 | struct inferior *inf; | |
998580f1 MK |
6343 | VEC(int) *inf_num = NULL; |
6344 | int mi_only = 1; | |
6c95b8df | 6345 | |
998580f1 | 6346 | ALL_INFERIORS (inf) |
6c95b8df PA |
6347 | { |
6348 | if (inf->pspace == loc->pspace) | |
998580f1 | 6349 | VEC_safe_push (int, inf_num, inf->num); |
6c95b8df | 6350 | } |
998580f1 MK |
6351 | |
6352 | /* For backward compatibility, don't display inferiors in CLI unless | |
6353 | there are several. Always display for MI. */ | |
6354 | if (allflag | |
6355 | || (!gdbarch_has_global_breakpoints (target_gdbarch ()) | |
6356 | && (number_of_program_spaces () > 1 | |
6357 | || number_of_inferiors () > 1) | |
6358 | /* LOC is for existing B, it cannot be in | |
6359 | moribund_locations and thus having NULL OWNER. */ | |
6360 | && loc->owner->type != bp_catchpoint)) | |
6361 | mi_only = 0; | |
6362 | output_thread_groups (uiout, "thread-groups", inf_num, mi_only); | |
6363 | VEC_free (int, inf_num); | |
6c95b8df PA |
6364 | } |
6365 | ||
4a306c9a | 6366 | if (!part_of_multiple) |
c4093a6a | 6367 | { |
4a306c9a JB |
6368 | if (b->thread != -1) |
6369 | { | |
6370 | /* FIXME: This seems to be redundant and lost here; see the | |
4a64f543 | 6371 | "stop only in" line a little further down. */ |
4a306c9a JB |
6372 | ui_out_text (uiout, " thread "); |
6373 | ui_out_field_int (uiout, "thread", b->thread); | |
6374 | } | |
6375 | else if (b->task != 0) | |
6376 | { | |
6377 | ui_out_text (uiout, " task "); | |
6378 | ui_out_field_int (uiout, "task", b->task); | |
6379 | } | |
c4093a6a | 6380 | } |
f1310107 | 6381 | |
8b93c638 | 6382 | ui_out_text (uiout, "\n"); |
f1310107 | 6383 | |
348d480f | 6384 | if (!part_of_multiple) |
f1310107 TJB |
6385 | b->ops->print_one_detail (b, uiout); |
6386 | ||
0d381245 | 6387 | if (part_of_multiple && frame_id_p (b->frame_id)) |
c4093a6a JM |
6388 | { |
6389 | annotate_field (6); | |
8b93c638 | 6390 | ui_out_text (uiout, "\tstop only in stack frame at "); |
e5dd4106 | 6391 | /* FIXME: cagney/2002-12-01: Shouldn't be poking around inside |
818dd999 | 6392 | the frame ID. */ |
5af949e3 UW |
6393 | ui_out_field_core_addr (uiout, "frame", |
6394 | b->gdbarch, b->frame_id.stack_addr); | |
8b93c638 | 6395 | ui_out_text (uiout, "\n"); |
c4093a6a JM |
6396 | } |
6397 | ||
28010a5d | 6398 | if (!part_of_multiple && b->cond_string) |
c4093a6a JM |
6399 | { |
6400 | annotate_field (7); | |
d77f58be | 6401 | if (is_tracepoint (b)) |
1042e4c0 SS |
6402 | ui_out_text (uiout, "\ttrace only if "); |
6403 | else | |
6404 | ui_out_text (uiout, "\tstop only if "); | |
0101ce28 | 6405 | ui_out_field_string (uiout, "cond", b->cond_string); |
b775012e LM |
6406 | |
6407 | /* Print whether the target is doing the breakpoint's condition | |
6408 | evaluation. If GDB is doing the evaluation, don't print anything. */ | |
6409 | if (is_breakpoint (b) | |
6410 | && breakpoint_condition_evaluation_mode () | |
6411 | == condition_evaluation_target) | |
6412 | { | |
6413 | ui_out_text (uiout, " ("); | |
6414 | ui_out_field_string (uiout, "evaluated-by", | |
6415 | bp_condition_evaluator (b)); | |
6416 | ui_out_text (uiout, " evals)"); | |
6417 | } | |
0101ce28 JJ |
6418 | ui_out_text (uiout, "\n"); |
6419 | } | |
6420 | ||
0d381245 | 6421 | if (!part_of_multiple && b->thread != -1) |
c4093a6a | 6422 | { |
4a64f543 | 6423 | /* FIXME should make an annotation for this. */ |
8b93c638 JM |
6424 | ui_out_text (uiout, "\tstop only in thread "); |
6425 | ui_out_field_int (uiout, "thread", b->thread); | |
6426 | ui_out_text (uiout, "\n"); | |
c4093a6a JM |
6427 | } |
6428 | ||
556ec64d YQ |
6429 | if (!part_of_multiple) |
6430 | { | |
6431 | if (b->hit_count) | |
31f56a27 YQ |
6432 | { |
6433 | /* FIXME should make an annotation for this. */ | |
6434 | if (is_catchpoint (b)) | |
6435 | ui_out_text (uiout, "\tcatchpoint"); | |
6436 | else if (is_tracepoint (b)) | |
6437 | ui_out_text (uiout, "\ttracepoint"); | |
6438 | else | |
6439 | ui_out_text (uiout, "\tbreakpoint"); | |
6440 | ui_out_text (uiout, " already hit "); | |
6441 | ui_out_field_int (uiout, "times", b->hit_count); | |
6442 | if (b->hit_count == 1) | |
6443 | ui_out_text (uiout, " time\n"); | |
6444 | else | |
6445 | ui_out_text (uiout, " times\n"); | |
6446 | } | |
556ec64d YQ |
6447 | else |
6448 | { | |
31f56a27 YQ |
6449 | /* Output the count also if it is zero, but only if this is mi. */ |
6450 | if (ui_out_is_mi_like_p (uiout)) | |
6451 | ui_out_field_int (uiout, "times", b->hit_count); | |
556ec64d YQ |
6452 | } |
6453 | } | |
8b93c638 | 6454 | |
0d381245 | 6455 | if (!part_of_multiple && b->ignore_count) |
c4093a6a JM |
6456 | { |
6457 | annotate_field (8); | |
8b93c638 JM |
6458 | ui_out_text (uiout, "\tignore next "); |
6459 | ui_out_field_int (uiout, "ignore", b->ignore_count); | |
6460 | ui_out_text (uiout, " hits\n"); | |
c4093a6a | 6461 | } |
059fb39f | 6462 | |
816338b5 SS |
6463 | /* Note that an enable count of 1 corresponds to "enable once" |
6464 | behavior, which is reported by the combination of enablement and | |
6465 | disposition, so we don't need to mention it here. */ | |
6466 | if (!part_of_multiple && b->enable_count > 1) | |
6467 | { | |
6468 | annotate_field (8); | |
6469 | ui_out_text (uiout, "\tdisable after "); | |
6470 | /* Tweak the wording to clarify that ignore and enable counts | |
6471 | are distinct, and have additive effect. */ | |
6472 | if (b->ignore_count) | |
6473 | ui_out_text (uiout, "additional "); | |
6474 | else | |
6475 | ui_out_text (uiout, "next "); | |
6476 | ui_out_field_int (uiout, "enable", b->enable_count); | |
6477 | ui_out_text (uiout, " hits\n"); | |
6478 | } | |
6479 | ||
f196051f SS |
6480 | if (!part_of_multiple && is_tracepoint (b)) |
6481 | { | |
6482 | struct tracepoint *tp = (struct tracepoint *) b; | |
6483 | ||
6484 | if (tp->traceframe_usage) | |
6485 | { | |
6486 | ui_out_text (uiout, "\ttrace buffer usage "); | |
6487 | ui_out_field_int (uiout, "traceframe-usage", tp->traceframe_usage); | |
6488 | ui_out_text (uiout, " bytes\n"); | |
6489 | } | |
6490 | } | |
d3ce09f5 | 6491 | |
9add0f1b | 6492 | l = b->commands ? b->commands->commands : NULL; |
059fb39f | 6493 | if (!part_of_multiple && l) |
c4093a6a | 6494 | { |
3b31d625 EZ |
6495 | struct cleanup *script_chain; |
6496 | ||
c4093a6a | 6497 | annotate_field (9); |
3b31d625 | 6498 | script_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "script"); |
8b93c638 | 6499 | print_command_lines (uiout, l, 4); |
3b31d625 | 6500 | do_cleanups (script_chain); |
c4093a6a | 6501 | } |
d24317b4 | 6502 | |
d9b3f62e | 6503 | if (is_tracepoint (b)) |
1042e4c0 | 6504 | { |
d9b3f62e PA |
6505 | struct tracepoint *t = (struct tracepoint *) b; |
6506 | ||
6507 | if (!part_of_multiple && t->pass_count) | |
6508 | { | |
6509 | annotate_field (10); | |
6510 | ui_out_text (uiout, "\tpass count "); | |
6511 | ui_out_field_int (uiout, "pass", t->pass_count); | |
6512 | ui_out_text (uiout, " \n"); | |
6513 | } | |
f2a8bc8a YQ |
6514 | |
6515 | /* Don't display it when tracepoint or tracepoint location is | |
6516 | pending. */ | |
6517 | if (!header_of_multiple && loc != NULL && !loc->shlib_disabled) | |
6518 | { | |
6519 | annotate_field (11); | |
6520 | ||
6521 | if (ui_out_is_mi_like_p (uiout)) | |
6522 | ui_out_field_string (uiout, "installed", | |
6523 | loc->inserted ? "y" : "n"); | |
6524 | else | |
6525 | { | |
6526 | if (loc->inserted) | |
6527 | ui_out_text (uiout, "\t"); | |
6528 | else | |
6529 | ui_out_text (uiout, "\tnot "); | |
6530 | ui_out_text (uiout, "installed on target\n"); | |
6531 | } | |
6532 | } | |
1042e4c0 SS |
6533 | } |
6534 | ||
d24317b4 VP |
6535 | if (ui_out_is_mi_like_p (uiout) && !part_of_multiple) |
6536 | { | |
3a5c3e22 PA |
6537 | if (is_watchpoint (b)) |
6538 | { | |
6539 | struct watchpoint *w = (struct watchpoint *) b; | |
6540 | ||
6541 | ui_out_field_string (uiout, "original-location", w->exp_string); | |
6542 | } | |
6543 | else if (b->addr_string) | |
d24317b4 | 6544 | ui_out_field_string (uiout, "original-location", b->addr_string); |
d24317b4 | 6545 | } |
c4093a6a | 6546 | } |
c5aa993b | 6547 | |
0d381245 VP |
6548 | static void |
6549 | print_one_breakpoint (struct breakpoint *b, | |
4a64f543 | 6550 | struct bp_location **last_loc, |
6c95b8df | 6551 | int allflag) |
0d381245 | 6552 | { |
8d3788bd | 6553 | struct cleanup *bkpt_chain; |
79a45e25 | 6554 | struct ui_out *uiout = current_uiout; |
8d3788bd VP |
6555 | |
6556 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt"); | |
6557 | ||
12c5a436 | 6558 | print_one_breakpoint_location (b, NULL, 0, last_loc, allflag); |
8d3788bd | 6559 | do_cleanups (bkpt_chain); |
0d381245 VP |
6560 | |
6561 | /* If this breakpoint has custom print function, | |
6562 | it's already printed. Otherwise, print individual | |
6563 | locations, if any. */ | |
6564 | if (b->ops == NULL || b->ops->print_one == NULL) | |
6565 | { | |
4a64f543 MS |
6566 | /* If breakpoint has a single location that is disabled, we |
6567 | print it as if it had several locations, since otherwise it's | |
6568 | hard to represent "breakpoint enabled, location disabled" | |
6569 | situation. | |
6570 | ||
6571 | Note that while hardware watchpoints have several locations | |
a3be7890 | 6572 | internally, that's not a property exposed to user. */ |
0d381245 | 6573 | if (b->loc |
a5606eee | 6574 | && !is_hardware_watchpoint (b) |
8d3788bd | 6575 | && (b->loc->next || !b->loc->enabled)) |
0d381245 VP |
6576 | { |
6577 | struct bp_location *loc; | |
6578 | int n = 1; | |
8d3788bd | 6579 | |
0d381245 | 6580 | for (loc = b->loc; loc; loc = loc->next, ++n) |
8d3788bd VP |
6581 | { |
6582 | struct cleanup *inner2 = | |
6583 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
6584 | print_one_breakpoint_location (b, loc, n, last_loc, allflag); | |
6585 | do_cleanups (inner2); | |
6586 | } | |
0d381245 VP |
6587 | } |
6588 | } | |
6589 | } | |
6590 | ||
a6d9a66e UW |
6591 | static int |
6592 | breakpoint_address_bits (struct breakpoint *b) | |
6593 | { | |
6594 | int print_address_bits = 0; | |
6595 | struct bp_location *loc; | |
6596 | ||
6597 | for (loc = b->loc; loc; loc = loc->next) | |
6598 | { | |
c7437ca6 PA |
6599 | int addr_bit; |
6600 | ||
6601 | /* Software watchpoints that aren't watching memory don't have | |
6602 | an address to print. */ | |
6603 | if (b->type == bp_watchpoint && loc->watchpoint_type == -1) | |
6604 | continue; | |
6605 | ||
6606 | addr_bit = gdbarch_addr_bit (loc->gdbarch); | |
a6d9a66e UW |
6607 | if (addr_bit > print_address_bits) |
6608 | print_address_bits = addr_bit; | |
6609 | } | |
6610 | ||
6611 | return print_address_bits; | |
6612 | } | |
0d381245 | 6613 | |
c4093a6a JM |
6614 | struct captured_breakpoint_query_args |
6615 | { | |
6616 | int bnum; | |
6617 | }; | |
c5aa993b | 6618 | |
c4093a6a | 6619 | static int |
2b65245e | 6620 | do_captured_breakpoint_query (struct ui_out *uiout, void *data) |
c4093a6a JM |
6621 | { |
6622 | struct captured_breakpoint_query_args *args = data; | |
52f0bd74 | 6623 | struct breakpoint *b; |
a6d9a66e | 6624 | struct bp_location *dummy_loc = NULL; |
cc59ec59 | 6625 | |
c4093a6a JM |
6626 | ALL_BREAKPOINTS (b) |
6627 | { | |
6628 | if (args->bnum == b->number) | |
c5aa993b | 6629 | { |
12c5a436 | 6630 | print_one_breakpoint (b, &dummy_loc, 0); |
c4093a6a | 6631 | return GDB_RC_OK; |
c5aa993b | 6632 | } |
c4093a6a JM |
6633 | } |
6634 | return GDB_RC_NONE; | |
6635 | } | |
c5aa993b | 6636 | |
c4093a6a | 6637 | enum gdb_rc |
4a64f543 MS |
6638 | gdb_breakpoint_query (struct ui_out *uiout, int bnum, |
6639 | char **error_message) | |
c4093a6a JM |
6640 | { |
6641 | struct captured_breakpoint_query_args args; | |
cc59ec59 | 6642 | |
c4093a6a JM |
6643 | args.bnum = bnum; |
6644 | /* For the moment we don't trust print_one_breakpoint() to not throw | |
4a64f543 | 6645 | an error. */ |
b0b13bb4 DJ |
6646 | if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args, |
6647 | error_message, RETURN_MASK_ALL) < 0) | |
6648 | return GDB_RC_FAIL; | |
6649 | else | |
6650 | return GDB_RC_OK; | |
c4093a6a | 6651 | } |
c5aa993b | 6652 | |
09d682a4 TT |
6653 | /* Return true if this breakpoint was set by the user, false if it is |
6654 | internal or momentary. */ | |
6655 | ||
6656 | int | |
6657 | user_breakpoint_p (struct breakpoint *b) | |
6658 | { | |
46c6471b | 6659 | return b->number > 0; |
09d682a4 TT |
6660 | } |
6661 | ||
7f3b0473 | 6662 | /* Print information on user settable breakpoint (watchpoint, etc) |
d77f58be SS |
6663 | number BNUM. If BNUM is -1 print all user-settable breakpoints. |
6664 | If ALLFLAG is non-zero, include non-user-settable breakpoints. If | |
6665 | FILTER is non-NULL, call it on each breakpoint and only include the | |
6666 | ones for which it returns non-zero. Return the total number of | |
6667 | breakpoints listed. */ | |
c906108c | 6668 | |
d77f58be | 6669 | static int |
e5a67952 | 6670 | breakpoint_1 (char *args, int allflag, |
4a64f543 | 6671 | int (*filter) (const struct breakpoint *)) |
c4093a6a | 6672 | { |
52f0bd74 | 6673 | struct breakpoint *b; |
a6d9a66e | 6674 | struct bp_location *last_loc = NULL; |
7f3b0473 | 6675 | int nr_printable_breakpoints; |
3b31d625 | 6676 | struct cleanup *bkpttbl_chain; |
79a45b7d | 6677 | struct value_print_options opts; |
a6d9a66e | 6678 | int print_address_bits = 0; |
269b11a2 | 6679 | int print_type_col_width = 14; |
79a45e25 | 6680 | struct ui_out *uiout = current_uiout; |
269b11a2 | 6681 | |
79a45b7d TT |
6682 | get_user_print_options (&opts); |
6683 | ||
4a64f543 MS |
6684 | /* Compute the number of rows in the table, as well as the size |
6685 | required for address fields. */ | |
7f3b0473 AC |
6686 | nr_printable_breakpoints = 0; |
6687 | ALL_BREAKPOINTS (b) | |
e5a67952 MS |
6688 | { |
6689 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6690 | if (filter && !filter (b)) | |
6691 | continue; | |
6692 | ||
6693 | /* If we have an "args" string, it is a list of breakpoints to | |
6694 | accept. Skip the others. */ | |
6695 | if (args != NULL && *args != '\0') | |
6696 | { | |
6697 | if (allflag && parse_and_eval_long (args) != b->number) | |
6698 | continue; | |
6699 | if (!allflag && !number_is_in_list (args, b->number)) | |
6700 | continue; | |
6701 | } | |
269b11a2 | 6702 | |
e5a67952 MS |
6703 | if (allflag || user_breakpoint_p (b)) |
6704 | { | |
6705 | int addr_bit, type_len; | |
a6d9a66e | 6706 | |
e5a67952 MS |
6707 | addr_bit = breakpoint_address_bits (b); |
6708 | if (addr_bit > print_address_bits) | |
6709 | print_address_bits = addr_bit; | |
269b11a2 | 6710 | |
e5a67952 MS |
6711 | type_len = strlen (bptype_string (b->type)); |
6712 | if (type_len > print_type_col_width) | |
6713 | print_type_col_width = type_len; | |
6714 | ||
6715 | nr_printable_breakpoints++; | |
6716 | } | |
6717 | } | |
7f3b0473 | 6718 | |
79a45b7d | 6719 | if (opts.addressprint) |
3b31d625 | 6720 | bkpttbl_chain |
3e43a32a MS |
6721 | = make_cleanup_ui_out_table_begin_end (uiout, 6, |
6722 | nr_printable_breakpoints, | |
3b31d625 | 6723 | "BreakpointTable"); |
8b93c638 | 6724 | else |
3b31d625 | 6725 | bkpttbl_chain |
3e43a32a MS |
6726 | = make_cleanup_ui_out_table_begin_end (uiout, 5, |
6727 | nr_printable_breakpoints, | |
3b31d625 | 6728 | "BreakpointTable"); |
8b93c638 | 6729 | |
7f3b0473 | 6730 | if (nr_printable_breakpoints > 0) |
d7faa9e7 AC |
6731 | annotate_breakpoints_headers (); |
6732 | if (nr_printable_breakpoints > 0) | |
6733 | annotate_field (0); | |
4a64f543 | 6734 | ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */ |
d7faa9e7 AC |
6735 | if (nr_printable_breakpoints > 0) |
6736 | annotate_field (1); | |
269b11a2 | 6737 | ui_out_table_header (uiout, print_type_col_width, ui_left, |
4a64f543 | 6738 | "type", "Type"); /* 2 */ |
d7faa9e7 AC |
6739 | if (nr_printable_breakpoints > 0) |
6740 | annotate_field (2); | |
4a64f543 | 6741 | ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */ |
d7faa9e7 AC |
6742 | if (nr_printable_breakpoints > 0) |
6743 | annotate_field (3); | |
54e52265 | 6744 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */ |
79a45b7d | 6745 | if (opts.addressprint) |
e5a67952 MS |
6746 | { |
6747 | if (nr_printable_breakpoints > 0) | |
6748 | annotate_field (4); | |
6749 | if (print_address_bits <= 32) | |
6750 | ui_out_table_header (uiout, 10, ui_left, | |
6751 | "addr", "Address"); /* 5 */ | |
6752 | else | |
6753 | ui_out_table_header (uiout, 18, ui_left, | |
6754 | "addr", "Address"); /* 5 */ | |
6755 | } | |
d7faa9e7 AC |
6756 | if (nr_printable_breakpoints > 0) |
6757 | annotate_field (5); | |
6758 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); /* 6 */ | |
6759 | ui_out_table_body (uiout); | |
6760 | if (nr_printable_breakpoints > 0) | |
6761 | annotate_breakpoints_table (); | |
7f3b0473 | 6762 | |
c4093a6a | 6763 | ALL_BREAKPOINTS (b) |
e5a67952 MS |
6764 | { |
6765 | QUIT; | |
6766 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6767 | if (filter && !filter (b)) | |
6768 | continue; | |
6769 | ||
6770 | /* If we have an "args" string, it is a list of breakpoints to | |
6771 | accept. Skip the others. */ | |
6772 | ||
6773 | if (args != NULL && *args != '\0') | |
6774 | { | |
6775 | if (allflag) /* maintenance info breakpoint */ | |
6776 | { | |
6777 | if (parse_and_eval_long (args) != b->number) | |
6778 | continue; | |
6779 | } | |
6780 | else /* all others */ | |
6781 | { | |
6782 | if (!number_is_in_list (args, b->number)) | |
6783 | continue; | |
6784 | } | |
6785 | } | |
6786 | /* We only print out user settable breakpoints unless the | |
6787 | allflag is set. */ | |
6788 | if (allflag || user_breakpoint_p (b)) | |
12c5a436 | 6789 | print_one_breakpoint (b, &last_loc, allflag); |
e5a67952 MS |
6790 | } |
6791 | ||
3b31d625 | 6792 | do_cleanups (bkpttbl_chain); |
698384cd | 6793 | |
7f3b0473 | 6794 | if (nr_printable_breakpoints == 0) |
c906108c | 6795 | { |
4a64f543 MS |
6796 | /* If there's a filter, let the caller decide how to report |
6797 | empty list. */ | |
d77f58be SS |
6798 | if (!filter) |
6799 | { | |
e5a67952 | 6800 | if (args == NULL || *args == '\0') |
d77f58be SS |
6801 | ui_out_message (uiout, 0, "No breakpoints or watchpoints.\n"); |
6802 | else | |
4a64f543 | 6803 | ui_out_message (uiout, 0, |
e5a67952 MS |
6804 | "No breakpoint or watchpoint matching '%s'.\n", |
6805 | args); | |
d77f58be | 6806 | } |
c906108c SS |
6807 | } |
6808 | else | |
c4093a6a | 6809 | { |
a6d9a66e UW |
6810 | if (last_loc && !server_command) |
6811 | set_next_address (last_loc->gdbarch, last_loc->address); | |
c4093a6a | 6812 | } |
c906108c | 6813 | |
4a64f543 | 6814 | /* FIXME? Should this be moved up so that it is only called when |
c4093a6a | 6815 | there have been breakpoints? */ |
c906108c | 6816 | annotate_breakpoints_table_end (); |
d77f58be SS |
6817 | |
6818 | return nr_printable_breakpoints; | |
c906108c SS |
6819 | } |
6820 | ||
ad443146 SS |
6821 | /* Display the value of default-collect in a way that is generally |
6822 | compatible with the breakpoint list. */ | |
6823 | ||
6824 | static void | |
6825 | default_collect_info (void) | |
6826 | { | |
79a45e25 PA |
6827 | struct ui_out *uiout = current_uiout; |
6828 | ||
ad443146 SS |
6829 | /* If it has no value (which is frequently the case), say nothing; a |
6830 | message like "No default-collect." gets in user's face when it's | |
6831 | not wanted. */ | |
6832 | if (!*default_collect) | |
6833 | return; | |
6834 | ||
6835 | /* The following phrase lines up nicely with per-tracepoint collect | |
6836 | actions. */ | |
6837 | ui_out_text (uiout, "default collect "); | |
6838 | ui_out_field_string (uiout, "default-collect", default_collect); | |
6839 | ui_out_text (uiout, " \n"); | |
6840 | } | |
6841 | ||
c906108c | 6842 | static void |
e5a67952 | 6843 | breakpoints_info (char *args, int from_tty) |
c906108c | 6844 | { |
e5a67952 | 6845 | breakpoint_1 (args, 0, NULL); |
ad443146 SS |
6846 | |
6847 | default_collect_info (); | |
d77f58be SS |
6848 | } |
6849 | ||
6850 | static void | |
e5a67952 | 6851 | watchpoints_info (char *args, int from_tty) |
d77f58be | 6852 | { |
e5a67952 | 6853 | int num_printed = breakpoint_1 (args, 0, is_watchpoint); |
79a45e25 | 6854 | struct ui_out *uiout = current_uiout; |
d77f58be SS |
6855 | |
6856 | if (num_printed == 0) | |
6857 | { | |
e5a67952 | 6858 | if (args == NULL || *args == '\0') |
d77f58be SS |
6859 | ui_out_message (uiout, 0, "No watchpoints.\n"); |
6860 | else | |
e5a67952 | 6861 | ui_out_message (uiout, 0, "No watchpoint matching '%s'.\n", args); |
d77f58be | 6862 | } |
c906108c SS |
6863 | } |
6864 | ||
7a292a7a | 6865 | static void |
e5a67952 | 6866 | maintenance_info_breakpoints (char *args, int from_tty) |
c906108c | 6867 | { |
e5a67952 | 6868 | breakpoint_1 (args, 1, NULL); |
ad443146 SS |
6869 | |
6870 | default_collect_info (); | |
c906108c SS |
6871 | } |
6872 | ||
0d381245 | 6873 | static int |
714835d5 | 6874 | breakpoint_has_pc (struct breakpoint *b, |
6c95b8df | 6875 | struct program_space *pspace, |
714835d5 | 6876 | CORE_ADDR pc, struct obj_section *section) |
0d381245 VP |
6877 | { |
6878 | struct bp_location *bl = b->loc; | |
cc59ec59 | 6879 | |
0d381245 VP |
6880 | for (; bl; bl = bl->next) |
6881 | { | |
6c95b8df PA |
6882 | if (bl->pspace == pspace |
6883 | && bl->address == pc | |
0d381245 VP |
6884 | && (!overlay_debugging || bl->section == section)) |
6885 | return 1; | |
6886 | } | |
6887 | return 0; | |
6888 | } | |
6889 | ||
672f9b60 | 6890 | /* Print a message describing any user-breakpoints set at PC. This |
6c95b8df PA |
6891 | concerns with logical breakpoints, so we match program spaces, not |
6892 | address spaces. */ | |
c906108c SS |
6893 | |
6894 | static void | |
6c95b8df PA |
6895 | describe_other_breakpoints (struct gdbarch *gdbarch, |
6896 | struct program_space *pspace, CORE_ADDR pc, | |
5af949e3 | 6897 | struct obj_section *section, int thread) |
c906108c | 6898 | { |
52f0bd74 AC |
6899 | int others = 0; |
6900 | struct breakpoint *b; | |
c906108c SS |
6901 | |
6902 | ALL_BREAKPOINTS (b) | |
672f9b60 KP |
6903 | others += (user_breakpoint_p (b) |
6904 | && breakpoint_has_pc (b, pspace, pc, section)); | |
c906108c SS |
6905 | if (others > 0) |
6906 | { | |
a3f17187 AC |
6907 | if (others == 1) |
6908 | printf_filtered (_("Note: breakpoint ")); | |
6909 | else /* if (others == ???) */ | |
6910 | printf_filtered (_("Note: breakpoints ")); | |
c906108c | 6911 | ALL_BREAKPOINTS (b) |
672f9b60 | 6912 | if (user_breakpoint_p (b) && breakpoint_has_pc (b, pspace, pc, section)) |
0d381245 VP |
6913 | { |
6914 | others--; | |
6915 | printf_filtered ("%d", b->number); | |
6916 | if (b->thread == -1 && thread != -1) | |
6917 | printf_filtered (" (all threads)"); | |
6918 | else if (b->thread != -1) | |
6919 | printf_filtered (" (thread %d)", b->thread); | |
6920 | printf_filtered ("%s%s ", | |
059fb39f | 6921 | ((b->enable_state == bp_disabled |
f8eba3c6 | 6922 | || b->enable_state == bp_call_disabled) |
0d381245 VP |
6923 | ? " (disabled)" |
6924 | : b->enable_state == bp_permanent | |
6925 | ? " (permanent)" | |
6926 | : ""), | |
6927 | (others > 1) ? "," | |
6928 | : ((others == 1) ? " and" : "")); | |
6929 | } | |
a3f17187 | 6930 | printf_filtered (_("also set at pc ")); |
5af949e3 | 6931 | fputs_filtered (paddress (gdbarch, pc), gdb_stdout); |
c906108c SS |
6932 | printf_filtered (".\n"); |
6933 | } | |
6934 | } | |
6935 | \f | |
c906108c | 6936 | |
e4f237da KB |
6937 | /* Return true iff it is meaningful to use the address member of |
6938 | BPT. For some breakpoint types, the address member is irrelevant | |
6939 | and it makes no sense to attempt to compare it to other addresses | |
6940 | (or use it for any other purpose either). | |
6941 | ||
4a64f543 MS |
6942 | More specifically, each of the following breakpoint types will |
6943 | always have a zero valued address and we don't want to mark | |
6944 | breakpoints of any of these types to be a duplicate of an actual | |
6945 | breakpoint at address zero: | |
e4f237da KB |
6946 | |
6947 | bp_watchpoint | |
2d134ed3 PA |
6948 | bp_catchpoint |
6949 | ||
6950 | */ | |
e4f237da KB |
6951 | |
6952 | static int | |
6953 | breakpoint_address_is_meaningful (struct breakpoint *bpt) | |
6954 | { | |
6955 | enum bptype type = bpt->type; | |
6956 | ||
2d134ed3 PA |
6957 | return (type != bp_watchpoint && type != bp_catchpoint); |
6958 | } | |
6959 | ||
6960 | /* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns | |
6961 | true if LOC1 and LOC2 represent the same watchpoint location. */ | |
6962 | ||
6963 | static int | |
4a64f543 MS |
6964 | watchpoint_locations_match (struct bp_location *loc1, |
6965 | struct bp_location *loc2) | |
2d134ed3 | 6966 | { |
3a5c3e22 PA |
6967 | struct watchpoint *w1 = (struct watchpoint *) loc1->owner; |
6968 | struct watchpoint *w2 = (struct watchpoint *) loc2->owner; | |
6969 | ||
6970 | /* Both of them must exist. */ | |
6971 | gdb_assert (w1 != NULL); | |
6972 | gdb_assert (w2 != NULL); | |
2bdf28a0 | 6973 | |
4a64f543 MS |
6974 | /* If the target can evaluate the condition expression in hardware, |
6975 | then we we need to insert both watchpoints even if they are at | |
6976 | the same place. Otherwise the watchpoint will only trigger when | |
6977 | the condition of whichever watchpoint was inserted evaluates to | |
6978 | true, not giving a chance for GDB to check the condition of the | |
6979 | other watchpoint. */ | |
3a5c3e22 | 6980 | if ((w1->cond_exp |
4a64f543 MS |
6981 | && target_can_accel_watchpoint_condition (loc1->address, |
6982 | loc1->length, | |
0cf6dd15 | 6983 | loc1->watchpoint_type, |
3a5c3e22 PA |
6984 | w1->cond_exp)) |
6985 | || (w2->cond_exp | |
4a64f543 MS |
6986 | && target_can_accel_watchpoint_condition (loc2->address, |
6987 | loc2->length, | |
0cf6dd15 | 6988 | loc2->watchpoint_type, |
3a5c3e22 | 6989 | w2->cond_exp))) |
0cf6dd15 TJB |
6990 | return 0; |
6991 | ||
85d721b8 PA |
6992 | /* Note that this checks the owner's type, not the location's. In |
6993 | case the target does not support read watchpoints, but does | |
6994 | support access watchpoints, we'll have bp_read_watchpoint | |
6995 | watchpoints with hw_access locations. Those should be considered | |
6996 | duplicates of hw_read locations. The hw_read locations will | |
6997 | become hw_access locations later. */ | |
2d134ed3 PA |
6998 | return (loc1->owner->type == loc2->owner->type |
6999 | && loc1->pspace->aspace == loc2->pspace->aspace | |
7000 | && loc1->address == loc2->address | |
7001 | && loc1->length == loc2->length); | |
e4f237da KB |
7002 | } |
7003 | ||
31e77af2 | 7004 | /* See breakpoint.h. */ |
6c95b8df | 7005 | |
31e77af2 | 7006 | int |
6c95b8df PA |
7007 | breakpoint_address_match (struct address_space *aspace1, CORE_ADDR addr1, |
7008 | struct address_space *aspace2, CORE_ADDR addr2) | |
7009 | { | |
f5656ead | 7010 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
7011 | || aspace1 == aspace2) |
7012 | && addr1 == addr2); | |
7013 | } | |
7014 | ||
f1310107 TJB |
7015 | /* Returns true if {ASPACE2,ADDR2} falls within the range determined by |
7016 | {ASPACE1,ADDR1,LEN1}. In most targets, this can only be true if ASPACE1 | |
7017 | matches ASPACE2. On targets that have global breakpoints, the address | |
7018 | space doesn't really matter. */ | |
7019 | ||
7020 | static int | |
7021 | breakpoint_address_match_range (struct address_space *aspace1, CORE_ADDR addr1, | |
7022 | int len1, struct address_space *aspace2, | |
7023 | CORE_ADDR addr2) | |
7024 | { | |
f5656ead | 7025 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
f1310107 TJB |
7026 | || aspace1 == aspace2) |
7027 | && addr2 >= addr1 && addr2 < addr1 + len1); | |
7028 | } | |
7029 | ||
7030 | /* Returns true if {ASPACE,ADDR} matches the breakpoint BL. BL may be | |
7031 | a ranged breakpoint. In most targets, a match happens only if ASPACE | |
7032 | matches the breakpoint's address space. On targets that have global | |
7033 | breakpoints, the address space doesn't really matter. */ | |
7034 | ||
7035 | static int | |
7036 | breakpoint_location_address_match (struct bp_location *bl, | |
7037 | struct address_space *aspace, | |
7038 | CORE_ADDR addr) | |
7039 | { | |
7040 | return (breakpoint_address_match (bl->pspace->aspace, bl->address, | |
7041 | aspace, addr) | |
7042 | || (bl->length | |
7043 | && breakpoint_address_match_range (bl->pspace->aspace, | |
7044 | bl->address, bl->length, | |
7045 | aspace, addr))); | |
7046 | } | |
7047 | ||
1e4d1764 YQ |
7048 | /* If LOC1 and LOC2's owners are not tracepoints, returns false directly. |
7049 | Then, if LOC1 and LOC2 represent the same tracepoint location, returns | |
7050 | true, otherwise returns false. */ | |
7051 | ||
7052 | static int | |
7053 | tracepoint_locations_match (struct bp_location *loc1, | |
7054 | struct bp_location *loc2) | |
7055 | { | |
7056 | if (is_tracepoint (loc1->owner) && is_tracepoint (loc2->owner)) | |
7057 | /* Since tracepoint locations are never duplicated with others', tracepoint | |
7058 | locations at the same address of different tracepoints are regarded as | |
7059 | different locations. */ | |
7060 | return (loc1->address == loc2->address && loc1->owner == loc2->owner); | |
7061 | else | |
7062 | return 0; | |
7063 | } | |
7064 | ||
2d134ed3 PA |
7065 | /* Assuming LOC1 and LOC2's types' have meaningful target addresses |
7066 | (breakpoint_address_is_meaningful), returns true if LOC1 and LOC2 | |
7067 | represent the same location. */ | |
7068 | ||
7069 | static int | |
4a64f543 MS |
7070 | breakpoint_locations_match (struct bp_location *loc1, |
7071 | struct bp_location *loc2) | |
2d134ed3 | 7072 | { |
2bdf28a0 JK |
7073 | int hw_point1, hw_point2; |
7074 | ||
7075 | /* Both of them must not be in moribund_locations. */ | |
7076 | gdb_assert (loc1->owner != NULL); | |
7077 | gdb_assert (loc2->owner != NULL); | |
7078 | ||
7079 | hw_point1 = is_hardware_watchpoint (loc1->owner); | |
7080 | hw_point2 = is_hardware_watchpoint (loc2->owner); | |
2d134ed3 PA |
7081 | |
7082 | if (hw_point1 != hw_point2) | |
7083 | return 0; | |
7084 | else if (hw_point1) | |
7085 | return watchpoint_locations_match (loc1, loc2); | |
1e4d1764 YQ |
7086 | else if (is_tracepoint (loc1->owner) || is_tracepoint (loc2->owner)) |
7087 | return tracepoint_locations_match (loc1, loc2); | |
2d134ed3 | 7088 | else |
f1310107 TJB |
7089 | /* We compare bp_location.length in order to cover ranged breakpoints. */ |
7090 | return (breakpoint_address_match (loc1->pspace->aspace, loc1->address, | |
7091 | loc2->pspace->aspace, loc2->address) | |
7092 | && loc1->length == loc2->length); | |
2d134ed3 PA |
7093 | } |
7094 | ||
76897487 KB |
7095 | static void |
7096 | breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr, | |
7097 | int bnum, int have_bnum) | |
7098 | { | |
f63fbe86 MS |
7099 | /* The longest string possibly returned by hex_string_custom |
7100 | is 50 chars. These must be at least that big for safety. */ | |
7101 | char astr1[64]; | |
7102 | char astr2[64]; | |
76897487 | 7103 | |
bb599908 PH |
7104 | strcpy (astr1, hex_string_custom ((unsigned long) from_addr, 8)); |
7105 | strcpy (astr2, hex_string_custom ((unsigned long) to_addr, 8)); | |
76897487 | 7106 | if (have_bnum) |
8a3fe4f8 | 7107 | warning (_("Breakpoint %d address previously adjusted from %s to %s."), |
76897487 KB |
7108 | bnum, astr1, astr2); |
7109 | else | |
8a3fe4f8 | 7110 | warning (_("Breakpoint address adjusted from %s to %s."), astr1, astr2); |
76897487 KB |
7111 | } |
7112 | ||
4a64f543 MS |
7113 | /* Adjust a breakpoint's address to account for architectural |
7114 | constraints on breakpoint placement. Return the adjusted address. | |
7115 | Note: Very few targets require this kind of adjustment. For most | |
7116 | targets, this function is simply the identity function. */ | |
76897487 KB |
7117 | |
7118 | static CORE_ADDR | |
a6d9a66e UW |
7119 | adjust_breakpoint_address (struct gdbarch *gdbarch, |
7120 | CORE_ADDR bpaddr, enum bptype bptype) | |
76897487 | 7121 | { |
a6d9a66e | 7122 | if (!gdbarch_adjust_breakpoint_address_p (gdbarch)) |
76897487 KB |
7123 | { |
7124 | /* Very few targets need any kind of breakpoint adjustment. */ | |
7125 | return bpaddr; | |
7126 | } | |
88f7da05 KB |
7127 | else if (bptype == bp_watchpoint |
7128 | || bptype == bp_hardware_watchpoint | |
7129 | || bptype == bp_read_watchpoint | |
7130 | || bptype == bp_access_watchpoint | |
fe798b75 | 7131 | || bptype == bp_catchpoint) |
88f7da05 KB |
7132 | { |
7133 | /* Watchpoints and the various bp_catch_* eventpoints should not | |
7134 | have their addresses modified. */ | |
7135 | return bpaddr; | |
7136 | } | |
76897487 KB |
7137 | else |
7138 | { | |
7139 | CORE_ADDR adjusted_bpaddr; | |
7140 | ||
7141 | /* Some targets have architectural constraints on the placement | |
7142 | of breakpoint instructions. Obtain the adjusted address. */ | |
a6d9a66e | 7143 | adjusted_bpaddr = gdbarch_adjust_breakpoint_address (gdbarch, bpaddr); |
76897487 KB |
7144 | |
7145 | /* An adjusted breakpoint address can significantly alter | |
7146 | a user's expectations. Print a warning if an adjustment | |
7147 | is required. */ | |
7148 | if (adjusted_bpaddr != bpaddr) | |
7149 | breakpoint_adjustment_warning (bpaddr, adjusted_bpaddr, 0, 0); | |
7150 | ||
7151 | return adjusted_bpaddr; | |
7152 | } | |
7153 | } | |
7154 | ||
28010a5d PA |
7155 | void |
7156 | init_bp_location (struct bp_location *loc, const struct bp_location_ops *ops, | |
7157 | struct breakpoint *owner) | |
7cc221ef | 7158 | { |
7cc221ef DJ |
7159 | memset (loc, 0, sizeof (*loc)); |
7160 | ||
348d480f PA |
7161 | gdb_assert (ops != NULL); |
7162 | ||
28010a5d PA |
7163 | loc->ops = ops; |
7164 | loc->owner = owner; | |
511a6cd4 | 7165 | loc->cond = NULL; |
b775012e | 7166 | loc->cond_bytecode = NULL; |
0d381245 VP |
7167 | loc->shlib_disabled = 0; |
7168 | loc->enabled = 1; | |
e049a4b5 | 7169 | |
28010a5d | 7170 | switch (owner->type) |
e049a4b5 DJ |
7171 | { |
7172 | case bp_breakpoint: | |
7173 | case bp_until: | |
7174 | case bp_finish: | |
7175 | case bp_longjmp: | |
7176 | case bp_longjmp_resume: | |
e2e4d78b | 7177 | case bp_longjmp_call_dummy: |
186c406b TT |
7178 | case bp_exception: |
7179 | case bp_exception_resume: | |
e049a4b5 | 7180 | case bp_step_resume: |
2c03e5be | 7181 | case bp_hp_step_resume: |
e049a4b5 DJ |
7182 | case bp_watchpoint_scope: |
7183 | case bp_call_dummy: | |
aa7d318d | 7184 | case bp_std_terminate: |
e049a4b5 DJ |
7185 | case bp_shlib_event: |
7186 | case bp_thread_event: | |
7187 | case bp_overlay_event: | |
4efc6507 | 7188 | case bp_jit_event: |
0fd8e87f | 7189 | case bp_longjmp_master: |
aa7d318d | 7190 | case bp_std_terminate_master: |
186c406b | 7191 | case bp_exception_master: |
0e30163f JK |
7192 | case bp_gnu_ifunc_resolver: |
7193 | case bp_gnu_ifunc_resolver_return: | |
e7e0cddf | 7194 | case bp_dprintf: |
e049a4b5 | 7195 | loc->loc_type = bp_loc_software_breakpoint; |
b775012e | 7196 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7197 | break; |
7198 | case bp_hardware_breakpoint: | |
7199 | loc->loc_type = bp_loc_hardware_breakpoint; | |
b775012e | 7200 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7201 | break; |
7202 | case bp_hardware_watchpoint: | |
7203 | case bp_read_watchpoint: | |
7204 | case bp_access_watchpoint: | |
7205 | loc->loc_type = bp_loc_hardware_watchpoint; | |
7206 | break; | |
7207 | case bp_watchpoint: | |
ce78b96d | 7208 | case bp_catchpoint: |
15c3d785 PA |
7209 | case bp_tracepoint: |
7210 | case bp_fast_tracepoint: | |
0fb4aa4b | 7211 | case bp_static_tracepoint: |
e049a4b5 DJ |
7212 | loc->loc_type = bp_loc_other; |
7213 | break; | |
7214 | default: | |
e2e0b3e5 | 7215 | internal_error (__FILE__, __LINE__, _("unknown breakpoint type")); |
e049a4b5 DJ |
7216 | } |
7217 | ||
f431efe5 | 7218 | loc->refc = 1; |
28010a5d PA |
7219 | } |
7220 | ||
7221 | /* Allocate a struct bp_location. */ | |
7222 | ||
7223 | static struct bp_location * | |
7224 | allocate_bp_location (struct breakpoint *bpt) | |
7225 | { | |
348d480f PA |
7226 | return bpt->ops->allocate_location (bpt); |
7227 | } | |
7cc221ef | 7228 | |
f431efe5 PA |
7229 | static void |
7230 | free_bp_location (struct bp_location *loc) | |
fe3f5fa8 | 7231 | { |
348d480f | 7232 | loc->ops->dtor (loc); |
fe3f5fa8 VP |
7233 | xfree (loc); |
7234 | } | |
7235 | ||
f431efe5 PA |
7236 | /* Increment reference count. */ |
7237 | ||
7238 | static void | |
7239 | incref_bp_location (struct bp_location *bl) | |
7240 | { | |
7241 | ++bl->refc; | |
7242 | } | |
7243 | ||
7244 | /* Decrement reference count. If the reference count reaches 0, | |
7245 | destroy the bp_location. Sets *BLP to NULL. */ | |
7246 | ||
7247 | static void | |
7248 | decref_bp_location (struct bp_location **blp) | |
7249 | { | |
0807b50c PA |
7250 | gdb_assert ((*blp)->refc > 0); |
7251 | ||
f431efe5 PA |
7252 | if (--(*blp)->refc == 0) |
7253 | free_bp_location (*blp); | |
7254 | *blp = NULL; | |
7255 | } | |
7256 | ||
346774a9 | 7257 | /* Add breakpoint B at the end of the global breakpoint chain. */ |
c906108c | 7258 | |
346774a9 PA |
7259 | static void |
7260 | add_to_breakpoint_chain (struct breakpoint *b) | |
c906108c | 7261 | { |
346774a9 | 7262 | struct breakpoint *b1; |
c906108c | 7263 | |
346774a9 PA |
7264 | /* Add this breakpoint to the end of the chain so that a list of |
7265 | breakpoints will come out in order of increasing numbers. */ | |
7266 | ||
7267 | b1 = breakpoint_chain; | |
7268 | if (b1 == 0) | |
7269 | breakpoint_chain = b; | |
7270 | else | |
7271 | { | |
7272 | while (b1->next) | |
7273 | b1 = b1->next; | |
7274 | b1->next = b; | |
7275 | } | |
7276 | } | |
7277 | ||
7278 | /* Initializes breakpoint B with type BPTYPE and no locations yet. */ | |
7279 | ||
7280 | static void | |
7281 | init_raw_breakpoint_without_location (struct breakpoint *b, | |
7282 | struct gdbarch *gdbarch, | |
28010a5d | 7283 | enum bptype bptype, |
c0a91b2b | 7284 | const struct breakpoint_ops *ops) |
346774a9 | 7285 | { |
c906108c | 7286 | memset (b, 0, sizeof (*b)); |
2219d63c | 7287 | |
348d480f PA |
7288 | gdb_assert (ops != NULL); |
7289 | ||
28010a5d | 7290 | b->ops = ops; |
4d28f7a8 | 7291 | b->type = bptype; |
a6d9a66e | 7292 | b->gdbarch = gdbarch; |
c906108c SS |
7293 | b->language = current_language->la_language; |
7294 | b->input_radix = input_radix; | |
7295 | b->thread = -1; | |
b5de0fa7 | 7296 | b->enable_state = bp_enabled; |
c906108c SS |
7297 | b->next = 0; |
7298 | b->silent = 0; | |
7299 | b->ignore_count = 0; | |
7300 | b->commands = NULL; | |
818dd999 | 7301 | b->frame_id = null_frame_id; |
0d381245 | 7302 | b->condition_not_parsed = 0; |
84f4c1fe | 7303 | b->py_bp_object = NULL; |
d0fb5eae | 7304 | b->related_breakpoint = b; |
346774a9 PA |
7305 | } |
7306 | ||
7307 | /* Helper to set_raw_breakpoint below. Creates a breakpoint | |
7308 | that has type BPTYPE and has no locations as yet. */ | |
346774a9 PA |
7309 | |
7310 | static struct breakpoint * | |
7311 | set_raw_breakpoint_without_location (struct gdbarch *gdbarch, | |
348d480f | 7312 | enum bptype bptype, |
c0a91b2b | 7313 | const struct breakpoint_ops *ops) |
346774a9 PA |
7314 | { |
7315 | struct breakpoint *b = XNEW (struct breakpoint); | |
7316 | ||
348d480f | 7317 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
c56053d2 | 7318 | add_to_breakpoint_chain (b); |
0d381245 VP |
7319 | return b; |
7320 | } | |
7321 | ||
0e30163f JK |
7322 | /* Initialize loc->function_name. EXPLICIT_LOC says no indirect function |
7323 | resolutions should be made as the user specified the location explicitly | |
7324 | enough. */ | |
7325 | ||
0d381245 | 7326 | static void |
0e30163f | 7327 | set_breakpoint_location_function (struct bp_location *loc, int explicit_loc) |
0d381245 | 7328 | { |
2bdf28a0 JK |
7329 | gdb_assert (loc->owner != NULL); |
7330 | ||
0d381245 | 7331 | if (loc->owner->type == bp_breakpoint |
1042e4c0 | 7332 | || loc->owner->type == bp_hardware_breakpoint |
d77f58be | 7333 | || is_tracepoint (loc->owner)) |
0d381245 | 7334 | { |
0e30163f | 7335 | int is_gnu_ifunc; |
2c02bd72 | 7336 | const char *function_name; |
6a3a010b | 7337 | CORE_ADDR func_addr; |
0e30163f | 7338 | |
2c02bd72 | 7339 | find_pc_partial_function_gnu_ifunc (loc->address, &function_name, |
6a3a010b | 7340 | &func_addr, NULL, &is_gnu_ifunc); |
0e30163f JK |
7341 | |
7342 | if (is_gnu_ifunc && !explicit_loc) | |
7343 | { | |
7344 | struct breakpoint *b = loc->owner; | |
7345 | ||
7346 | gdb_assert (loc->pspace == current_program_space); | |
2c02bd72 | 7347 | if (gnu_ifunc_resolve_name (function_name, |
0e30163f JK |
7348 | &loc->requested_address)) |
7349 | { | |
7350 | /* Recalculate ADDRESS based on new REQUESTED_ADDRESS. */ | |
7351 | loc->address = adjust_breakpoint_address (loc->gdbarch, | |
7352 | loc->requested_address, | |
7353 | b->type); | |
7354 | } | |
7355 | else if (b->type == bp_breakpoint && b->loc == loc | |
7356 | && loc->next == NULL && b->related_breakpoint == b) | |
7357 | { | |
7358 | /* Create only the whole new breakpoint of this type but do not | |
7359 | mess more complicated breakpoints with multiple locations. */ | |
7360 | b->type = bp_gnu_ifunc_resolver; | |
6a3a010b MR |
7361 | /* Remember the resolver's address for use by the return |
7362 | breakpoint. */ | |
7363 | loc->related_address = func_addr; | |
0e30163f JK |
7364 | } |
7365 | } | |
7366 | ||
2c02bd72 DE |
7367 | if (function_name) |
7368 | loc->function_name = xstrdup (function_name); | |
0d381245 VP |
7369 | } |
7370 | } | |
7371 | ||
a6d9a66e | 7372 | /* Attempt to determine architecture of location identified by SAL. */ |
1bfeeb0f | 7373 | struct gdbarch * |
a6d9a66e UW |
7374 | get_sal_arch (struct symtab_and_line sal) |
7375 | { | |
7376 | if (sal.section) | |
7377 | return get_objfile_arch (sal.section->objfile); | |
7378 | if (sal.symtab) | |
7379 | return get_objfile_arch (sal.symtab->objfile); | |
7380 | ||
7381 | return NULL; | |
7382 | } | |
7383 | ||
346774a9 PA |
7384 | /* Low level routine for partially initializing a breakpoint of type |
7385 | BPTYPE. The newly created breakpoint's address, section, source | |
c56053d2 | 7386 | file name, and line number are provided by SAL. |
0d381245 VP |
7387 | |
7388 | It is expected that the caller will complete the initialization of | |
7389 | the newly created breakpoint struct as well as output any status | |
c56053d2 | 7390 | information regarding the creation of a new breakpoint. */ |
0d381245 | 7391 | |
346774a9 PA |
7392 | static void |
7393 | init_raw_breakpoint (struct breakpoint *b, struct gdbarch *gdbarch, | |
28010a5d | 7394 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7395 | const struct breakpoint_ops *ops) |
0d381245 | 7396 | { |
28010a5d | 7397 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
346774a9 | 7398 | |
3742cc8b | 7399 | add_location_to_breakpoint (b, &sal); |
0d381245 | 7400 | |
6c95b8df PA |
7401 | if (bptype != bp_catchpoint) |
7402 | gdb_assert (sal.pspace != NULL); | |
7403 | ||
f8eba3c6 TT |
7404 | /* Store the program space that was used to set the breakpoint, |
7405 | except for ordinary breakpoints, which are independent of the | |
7406 | program space. */ | |
7407 | if (bptype != bp_breakpoint && bptype != bp_hardware_breakpoint) | |
7408 | b->pspace = sal.pspace; | |
346774a9 | 7409 | } |
c906108c | 7410 | |
346774a9 PA |
7411 | /* set_raw_breakpoint is a low level routine for allocating and |
7412 | partially initializing a breakpoint of type BPTYPE. The newly | |
7413 | created breakpoint's address, section, source file name, and line | |
7414 | number are provided by SAL. The newly created and partially | |
7415 | initialized breakpoint is added to the breakpoint chain and | |
7416 | is also returned as the value of this function. | |
7417 | ||
7418 | It is expected that the caller will complete the initialization of | |
7419 | the newly created breakpoint struct as well as output any status | |
7420 | information regarding the creation of a new breakpoint. In | |
7421 | particular, set_raw_breakpoint does NOT set the breakpoint | |
7422 | number! Care should be taken to not allow an error to occur | |
7423 | prior to completing the initialization of the breakpoint. If this | |
7424 | should happen, a bogus breakpoint will be left on the chain. */ | |
7425 | ||
7426 | struct breakpoint * | |
7427 | set_raw_breakpoint (struct gdbarch *gdbarch, | |
348d480f | 7428 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7429 | const struct breakpoint_ops *ops) |
346774a9 PA |
7430 | { |
7431 | struct breakpoint *b = XNEW (struct breakpoint); | |
7432 | ||
348d480f | 7433 | init_raw_breakpoint (b, gdbarch, sal, bptype, ops); |
c56053d2 | 7434 | add_to_breakpoint_chain (b); |
c906108c SS |
7435 | return b; |
7436 | } | |
7437 | ||
c2c6d25f JM |
7438 | |
7439 | /* Note that the breakpoint object B describes a permanent breakpoint | |
7440 | instruction, hard-wired into the inferior's code. */ | |
7441 | void | |
7442 | make_breakpoint_permanent (struct breakpoint *b) | |
7443 | { | |
0d381245 | 7444 | struct bp_location *bl; |
cc59ec59 | 7445 | |
b5de0fa7 | 7446 | b->enable_state = bp_permanent; |
c2c6d25f | 7447 | |
4a64f543 MS |
7448 | /* By definition, permanent breakpoints are already present in the |
7449 | code. Mark all locations as inserted. For now, | |
7450 | make_breakpoint_permanent is called in just one place, so it's | |
7451 | hard to say if it's reasonable to have permanent breakpoint with | |
e5dd4106 | 7452 | multiple locations or not, but it's easy to implement. */ |
0d381245 VP |
7453 | for (bl = b->loc; bl; bl = bl->next) |
7454 | bl->inserted = 1; | |
c2c6d25f JM |
7455 | } |
7456 | ||
53a5351d | 7457 | /* Call this routine when stepping and nexting to enable a breakpoint |
186c406b TT |
7458 | if we do a longjmp() or 'throw' in TP. FRAME is the frame which |
7459 | initiated the operation. */ | |
c906108c SS |
7460 | |
7461 | void | |
186c406b | 7462 | set_longjmp_breakpoint (struct thread_info *tp, struct frame_id frame) |
c906108c | 7463 | { |
35df4500 | 7464 | struct breakpoint *b, *b_tmp; |
186c406b | 7465 | int thread = tp->num; |
0fd8e87f UW |
7466 | |
7467 | /* To avoid having to rescan all objfile symbols at every step, | |
7468 | we maintain a list of continually-inserted but always disabled | |
7469 | longjmp "master" breakpoints. Here, we simply create momentary | |
7470 | clones of those and enable them for the requested thread. */ | |
35df4500 | 7471 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df | 7472 | if (b->pspace == current_program_space |
186c406b TT |
7473 | && (b->type == bp_longjmp_master |
7474 | || b->type == bp_exception_master)) | |
0fd8e87f | 7475 | { |
06edf0c0 PA |
7476 | enum bptype type = b->type == bp_longjmp_master ? bp_longjmp : bp_exception; |
7477 | struct breakpoint *clone; | |
cc59ec59 | 7478 | |
e2e4d78b JK |
7479 | /* longjmp_breakpoint_ops ensures INITIATING_FRAME is cleared again |
7480 | after their removal. */ | |
06edf0c0 | 7481 | clone = momentary_breakpoint_from_master (b, type, |
a1aa2221 | 7482 | &longjmp_breakpoint_ops, 1); |
0fd8e87f UW |
7483 | clone->thread = thread; |
7484 | } | |
186c406b TT |
7485 | |
7486 | tp->initiating_frame = frame; | |
c906108c SS |
7487 | } |
7488 | ||
611c83ae | 7489 | /* Delete all longjmp breakpoints from THREAD. */ |
c906108c | 7490 | void |
611c83ae | 7491 | delete_longjmp_breakpoint (int thread) |
c906108c | 7492 | { |
35df4500 | 7493 | struct breakpoint *b, *b_tmp; |
c906108c | 7494 | |
35df4500 | 7495 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
186c406b | 7496 | if (b->type == bp_longjmp || b->type == bp_exception) |
611c83ae PA |
7497 | { |
7498 | if (b->thread == thread) | |
7499 | delete_breakpoint (b); | |
7500 | } | |
c906108c SS |
7501 | } |
7502 | ||
f59f708a PA |
7503 | void |
7504 | delete_longjmp_breakpoint_at_next_stop (int thread) | |
7505 | { | |
7506 | struct breakpoint *b, *b_tmp; | |
7507 | ||
7508 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7509 | if (b->type == bp_longjmp || b->type == bp_exception) | |
7510 | { | |
7511 | if (b->thread == thread) | |
7512 | b->disposition = disp_del_at_next_stop; | |
7513 | } | |
7514 | } | |
7515 | ||
e2e4d78b JK |
7516 | /* Place breakpoints of type bp_longjmp_call_dummy to catch longjmp for |
7517 | INFERIOR_PTID thread. Chain them all by RELATED_BREAKPOINT and return | |
7518 | pointer to any of them. Return NULL if this system cannot place longjmp | |
7519 | breakpoints. */ | |
7520 | ||
7521 | struct breakpoint * | |
7522 | set_longjmp_breakpoint_for_call_dummy (void) | |
7523 | { | |
7524 | struct breakpoint *b, *retval = NULL; | |
7525 | ||
7526 | ALL_BREAKPOINTS (b) | |
7527 | if (b->pspace == current_program_space && b->type == bp_longjmp_master) | |
7528 | { | |
7529 | struct breakpoint *new_b; | |
7530 | ||
7531 | new_b = momentary_breakpoint_from_master (b, bp_longjmp_call_dummy, | |
a1aa2221 LM |
7532 | &momentary_breakpoint_ops, |
7533 | 1); | |
e2e4d78b JK |
7534 | new_b->thread = pid_to_thread_id (inferior_ptid); |
7535 | ||
7536 | /* Link NEW_B into the chain of RETVAL breakpoints. */ | |
7537 | ||
7538 | gdb_assert (new_b->related_breakpoint == new_b); | |
7539 | if (retval == NULL) | |
7540 | retval = new_b; | |
7541 | new_b->related_breakpoint = retval; | |
7542 | while (retval->related_breakpoint != new_b->related_breakpoint) | |
7543 | retval = retval->related_breakpoint; | |
7544 | retval->related_breakpoint = new_b; | |
7545 | } | |
7546 | ||
7547 | return retval; | |
7548 | } | |
7549 | ||
7550 | /* Verify all existing dummy frames and their associated breakpoints for | |
b67a2c6f | 7551 | TP. Remove those which can no longer be found in the current frame |
e2e4d78b JK |
7552 | stack. |
7553 | ||
7554 | You should call this function only at places where it is safe to currently | |
7555 | unwind the whole stack. Failed stack unwind would discard live dummy | |
7556 | frames. */ | |
7557 | ||
7558 | void | |
b67a2c6f | 7559 | check_longjmp_breakpoint_for_call_dummy (struct thread_info *tp) |
e2e4d78b JK |
7560 | { |
7561 | struct breakpoint *b, *b_tmp; | |
7562 | ||
7563 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
b67a2c6f | 7564 | if (b->type == bp_longjmp_call_dummy && b->thread == tp->num) |
e2e4d78b JK |
7565 | { |
7566 | struct breakpoint *dummy_b = b->related_breakpoint; | |
7567 | ||
7568 | while (dummy_b != b && dummy_b->type != bp_call_dummy) | |
7569 | dummy_b = dummy_b->related_breakpoint; | |
7570 | if (dummy_b->type != bp_call_dummy | |
7571 | || frame_find_by_id (dummy_b->frame_id) != NULL) | |
7572 | continue; | |
7573 | ||
b67a2c6f | 7574 | dummy_frame_discard (dummy_b->frame_id, tp->ptid); |
e2e4d78b JK |
7575 | |
7576 | while (b->related_breakpoint != b) | |
7577 | { | |
7578 | if (b_tmp == b->related_breakpoint) | |
7579 | b_tmp = b->related_breakpoint->next; | |
7580 | delete_breakpoint (b->related_breakpoint); | |
7581 | } | |
7582 | delete_breakpoint (b); | |
7583 | } | |
7584 | } | |
7585 | ||
1900040c MS |
7586 | void |
7587 | enable_overlay_breakpoints (void) | |
7588 | { | |
52f0bd74 | 7589 | struct breakpoint *b; |
1900040c MS |
7590 | |
7591 | ALL_BREAKPOINTS (b) | |
7592 | if (b->type == bp_overlay_event) | |
7593 | { | |
7594 | b->enable_state = bp_enabled; | |
44702360 | 7595 | update_global_location_list (UGLL_MAY_INSERT); |
c02f5703 | 7596 | overlay_events_enabled = 1; |
1900040c MS |
7597 | } |
7598 | } | |
7599 | ||
7600 | void | |
7601 | disable_overlay_breakpoints (void) | |
7602 | { | |
52f0bd74 | 7603 | struct breakpoint *b; |
1900040c MS |
7604 | |
7605 | ALL_BREAKPOINTS (b) | |
7606 | if (b->type == bp_overlay_event) | |
7607 | { | |
7608 | b->enable_state = bp_disabled; | |
44702360 | 7609 | update_global_location_list (UGLL_DONT_INSERT); |
c02f5703 | 7610 | overlay_events_enabled = 0; |
1900040c MS |
7611 | } |
7612 | } | |
7613 | ||
aa7d318d TT |
7614 | /* Set an active std::terminate breakpoint for each std::terminate |
7615 | master breakpoint. */ | |
7616 | void | |
7617 | set_std_terminate_breakpoint (void) | |
7618 | { | |
35df4500 | 7619 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7620 | |
35df4500 | 7621 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7622 | if (b->pspace == current_program_space |
7623 | && b->type == bp_std_terminate_master) | |
7624 | { | |
06edf0c0 | 7625 | momentary_breakpoint_from_master (b, bp_std_terminate, |
a1aa2221 | 7626 | &momentary_breakpoint_ops, 1); |
aa7d318d TT |
7627 | } |
7628 | } | |
7629 | ||
7630 | /* Delete all the std::terminate breakpoints. */ | |
7631 | void | |
7632 | delete_std_terminate_breakpoint (void) | |
7633 | { | |
35df4500 | 7634 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7635 | |
35df4500 | 7636 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7637 | if (b->type == bp_std_terminate) |
7638 | delete_breakpoint (b); | |
7639 | } | |
7640 | ||
c4093a6a | 7641 | struct breakpoint * |
a6d9a66e | 7642 | create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) |
c4093a6a JM |
7643 | { |
7644 | struct breakpoint *b; | |
c4093a6a | 7645 | |
06edf0c0 PA |
7646 | b = create_internal_breakpoint (gdbarch, address, bp_thread_event, |
7647 | &internal_breakpoint_ops); | |
7648 | ||
b5de0fa7 | 7649 | b->enable_state = bp_enabled; |
c4093a6a | 7650 | /* addr_string has to be used or breakpoint_re_set will delete me. */ |
5af949e3 UW |
7651 | b->addr_string |
7652 | = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address)); | |
c4093a6a | 7653 | |
44702360 | 7654 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
74960c60 | 7655 | |
c4093a6a JM |
7656 | return b; |
7657 | } | |
7658 | ||
7659 | void | |
7660 | remove_thread_event_breakpoints (void) | |
7661 | { | |
35df4500 | 7662 | struct breakpoint *b, *b_tmp; |
c4093a6a | 7663 | |
35df4500 | 7664 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7665 | if (b->type == bp_thread_event |
7666 | && b->loc->pspace == current_program_space) | |
c4093a6a JM |
7667 | delete_breakpoint (b); |
7668 | } | |
7669 | ||
0101ce28 JJ |
7670 | struct lang_and_radix |
7671 | { | |
7672 | enum language lang; | |
7673 | int radix; | |
7674 | }; | |
7675 | ||
4efc6507 DE |
7676 | /* Create a breakpoint for JIT code registration and unregistration. */ |
7677 | ||
7678 | struct breakpoint * | |
7679 | create_jit_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7680 | { | |
7681 | struct breakpoint *b; | |
7682 | ||
06edf0c0 PA |
7683 | b = create_internal_breakpoint (gdbarch, address, bp_jit_event, |
7684 | &internal_breakpoint_ops); | |
44702360 | 7685 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
4efc6507 DE |
7686 | return b; |
7687 | } | |
0101ce28 | 7688 | |
03673fc7 PP |
7689 | /* Remove JIT code registration and unregistration breakpoint(s). */ |
7690 | ||
7691 | void | |
7692 | remove_jit_event_breakpoints (void) | |
7693 | { | |
7694 | struct breakpoint *b, *b_tmp; | |
7695 | ||
7696 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7697 | if (b->type == bp_jit_event | |
7698 | && b->loc->pspace == current_program_space) | |
7699 | delete_breakpoint (b); | |
7700 | } | |
7701 | ||
cae688ec JJ |
7702 | void |
7703 | remove_solib_event_breakpoints (void) | |
7704 | { | |
35df4500 | 7705 | struct breakpoint *b, *b_tmp; |
cae688ec | 7706 | |
35df4500 | 7707 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7708 | if (b->type == bp_shlib_event |
7709 | && b->loc->pspace == current_program_space) | |
cae688ec JJ |
7710 | delete_breakpoint (b); |
7711 | } | |
7712 | ||
f37f681c PA |
7713 | /* See breakpoint.h. */ |
7714 | ||
7715 | void | |
7716 | remove_solib_event_breakpoints_at_next_stop (void) | |
7717 | { | |
7718 | struct breakpoint *b, *b_tmp; | |
7719 | ||
7720 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7721 | if (b->type == bp_shlib_event | |
7722 | && b->loc->pspace == current_program_space) | |
7723 | b->disposition = disp_del_at_next_stop; | |
7724 | } | |
7725 | ||
04086b45 PA |
7726 | /* Helper for create_solib_event_breakpoint / |
7727 | create_and_insert_solib_event_breakpoint. Allows specifying which | |
7728 | INSERT_MODE to pass through to update_global_location_list. */ | |
7729 | ||
7730 | static struct breakpoint * | |
7731 | create_solib_event_breakpoint_1 (struct gdbarch *gdbarch, CORE_ADDR address, | |
7732 | enum ugll_insert_mode insert_mode) | |
cae688ec JJ |
7733 | { |
7734 | struct breakpoint *b; | |
7735 | ||
06edf0c0 PA |
7736 | b = create_internal_breakpoint (gdbarch, address, bp_shlib_event, |
7737 | &internal_breakpoint_ops); | |
04086b45 | 7738 | update_global_location_list_nothrow (insert_mode); |
cae688ec JJ |
7739 | return b; |
7740 | } | |
7741 | ||
04086b45 PA |
7742 | struct breakpoint * |
7743 | create_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7744 | { | |
7745 | return create_solib_event_breakpoint_1 (gdbarch, address, UGLL_MAY_INSERT); | |
7746 | } | |
7747 | ||
f37f681c PA |
7748 | /* See breakpoint.h. */ |
7749 | ||
7750 | struct breakpoint * | |
7751 | create_and_insert_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7752 | { | |
7753 | struct breakpoint *b; | |
7754 | ||
04086b45 PA |
7755 | /* Explicitly tell update_global_location_list to insert |
7756 | locations. */ | |
7757 | b = create_solib_event_breakpoint_1 (gdbarch, address, UGLL_INSERT); | |
f37f681c PA |
7758 | if (!b->loc->inserted) |
7759 | { | |
7760 | delete_breakpoint (b); | |
7761 | return NULL; | |
7762 | } | |
7763 | return b; | |
7764 | } | |
7765 | ||
cae688ec JJ |
7766 | /* Disable any breakpoints that are on code in shared libraries. Only |
7767 | apply to enabled breakpoints, disabled ones can just stay disabled. */ | |
7768 | ||
7769 | void | |
cb851954 | 7770 | disable_breakpoints_in_shlibs (void) |
cae688ec | 7771 | { |
876fa593 | 7772 | struct bp_location *loc, **locp_tmp; |
cae688ec | 7773 | |
876fa593 | 7774 | ALL_BP_LOCATIONS (loc, locp_tmp) |
cae688ec | 7775 | { |
2bdf28a0 | 7776 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7777 | struct breakpoint *b = loc->owner; |
2bdf28a0 | 7778 | |
4a64f543 MS |
7779 | /* We apply the check to all breakpoints, including disabled for |
7780 | those with loc->duplicate set. This is so that when breakpoint | |
7781 | becomes enabled, or the duplicate is removed, gdb will try to | |
7782 | insert all breakpoints. If we don't set shlib_disabled here, | |
7783 | we'll try to insert those breakpoints and fail. */ | |
1042e4c0 | 7784 | if (((b->type == bp_breakpoint) |
508ccb1f | 7785 | || (b->type == bp_jit_event) |
1042e4c0 | 7786 | || (b->type == bp_hardware_breakpoint) |
d77f58be | 7787 | || (is_tracepoint (b))) |
6c95b8df | 7788 | && loc->pspace == current_program_space |
0d381245 | 7789 | && !loc->shlib_disabled |
6c95b8df | 7790 | && solib_name_from_address (loc->pspace, loc->address) |
a77053c2 | 7791 | ) |
0d381245 VP |
7792 | { |
7793 | loc->shlib_disabled = 1; | |
7794 | } | |
cae688ec JJ |
7795 | } |
7796 | } | |
7797 | ||
63644780 NB |
7798 | /* Disable any breakpoints and tracepoints that are in SOLIB upon |
7799 | notification of unloaded_shlib. Only apply to enabled breakpoints, | |
7800 | disabled ones can just stay disabled. */ | |
84acb35a | 7801 | |
75149521 | 7802 | static void |
84acb35a JJ |
7803 | disable_breakpoints_in_unloaded_shlib (struct so_list *solib) |
7804 | { | |
876fa593 | 7805 | struct bp_location *loc, **locp_tmp; |
84acb35a JJ |
7806 | int disabled_shlib_breaks = 0; |
7807 | ||
c86cf029 VP |
7808 | /* SunOS a.out shared libraries are always mapped, so do not |
7809 | disable breakpoints; they will only be reported as unloaded | |
7810 | through clear_solib when GDB discards its shared library | |
7811 | list. See clear_solib for more information. */ | |
7812 | if (exec_bfd != NULL | |
7813 | && bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour) | |
7814 | return; | |
7815 | ||
876fa593 | 7816 | ALL_BP_LOCATIONS (loc, locp_tmp) |
84acb35a | 7817 | { |
2bdf28a0 | 7818 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7819 | struct breakpoint *b = loc->owner; |
cc59ec59 | 7820 | |
1e4d1764 | 7821 | if (solib->pspace == loc->pspace |
e2dd7057 | 7822 | && !loc->shlib_disabled |
1e4d1764 YQ |
7823 | && (((b->type == bp_breakpoint |
7824 | || b->type == bp_jit_event | |
7825 | || b->type == bp_hardware_breakpoint) | |
7826 | && (loc->loc_type == bp_loc_hardware_breakpoint | |
7827 | || loc->loc_type == bp_loc_software_breakpoint)) | |
7828 | || is_tracepoint (b)) | |
e2dd7057 | 7829 | && solib_contains_address_p (solib, loc->address)) |
84acb35a | 7830 | { |
e2dd7057 PP |
7831 | loc->shlib_disabled = 1; |
7832 | /* At this point, we cannot rely on remove_breakpoint | |
7833 | succeeding so we must mark the breakpoint as not inserted | |
7834 | to prevent future errors occurring in remove_breakpoints. */ | |
7835 | loc->inserted = 0; | |
8d3788bd VP |
7836 | |
7837 | /* This may cause duplicate notifications for the same breakpoint. */ | |
7838 | observer_notify_breakpoint_modified (b); | |
7839 | ||
e2dd7057 PP |
7840 | if (!disabled_shlib_breaks) |
7841 | { | |
7842 | target_terminal_ours_for_output (); | |
3e43a32a MS |
7843 | warning (_("Temporarily disabling breakpoints " |
7844 | "for unloaded shared library \"%s\""), | |
e2dd7057 | 7845 | solib->so_name); |
84acb35a | 7846 | } |
e2dd7057 | 7847 | disabled_shlib_breaks = 1; |
84acb35a JJ |
7848 | } |
7849 | } | |
84acb35a JJ |
7850 | } |
7851 | ||
63644780 NB |
7852 | /* Disable any breakpoints and tracepoints in OBJFILE upon |
7853 | notification of free_objfile. Only apply to enabled breakpoints, | |
7854 | disabled ones can just stay disabled. */ | |
7855 | ||
7856 | static void | |
7857 | disable_breakpoints_in_freed_objfile (struct objfile *objfile) | |
7858 | { | |
7859 | struct breakpoint *b; | |
7860 | ||
7861 | if (objfile == NULL) | |
7862 | return; | |
7863 | ||
d03de421 PA |
7864 | /* OBJF_SHARED|OBJF_USERLOADED objfiles are dynamic modules manually |
7865 | managed by the user with add-symbol-file/remove-symbol-file. | |
7866 | Similarly to how breakpoints in shared libraries are handled in | |
7867 | response to "nosharedlibrary", mark breakpoints in such modules | |
08351840 PA |
7868 | shlib_disabled so they end up uninserted on the next global |
7869 | location list update. Shared libraries not loaded by the user | |
7870 | aren't handled here -- they're already handled in | |
7871 | disable_breakpoints_in_unloaded_shlib, called by solib.c's | |
7872 | solib_unloaded observer. We skip objfiles that are not | |
d03de421 PA |
7873 | OBJF_SHARED as those aren't considered dynamic objects (e.g. the |
7874 | main objfile). */ | |
7875 | if ((objfile->flags & OBJF_SHARED) == 0 | |
7876 | || (objfile->flags & OBJF_USERLOADED) == 0) | |
63644780 NB |
7877 | return; |
7878 | ||
7879 | ALL_BREAKPOINTS (b) | |
7880 | { | |
7881 | struct bp_location *loc; | |
7882 | int bp_modified = 0; | |
7883 | ||
7884 | if (!is_breakpoint (b) && !is_tracepoint (b)) | |
7885 | continue; | |
7886 | ||
7887 | for (loc = b->loc; loc != NULL; loc = loc->next) | |
7888 | { | |
7889 | CORE_ADDR loc_addr = loc->address; | |
7890 | ||
7891 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7892 | && loc->loc_type != bp_loc_software_breakpoint) | |
7893 | continue; | |
7894 | ||
7895 | if (loc->shlib_disabled != 0) | |
7896 | continue; | |
7897 | ||
7898 | if (objfile->pspace != loc->pspace) | |
7899 | continue; | |
7900 | ||
7901 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7902 | && loc->loc_type != bp_loc_software_breakpoint) | |
7903 | continue; | |
7904 | ||
7905 | if (is_addr_in_objfile (loc_addr, objfile)) | |
7906 | { | |
7907 | loc->shlib_disabled = 1; | |
08351840 PA |
7908 | /* At this point, we don't know whether the object was |
7909 | unmapped from the inferior or not, so leave the | |
7910 | inserted flag alone. We'll handle failure to | |
7911 | uninsert quietly, in case the object was indeed | |
7912 | unmapped. */ | |
63644780 NB |
7913 | |
7914 | mark_breakpoint_location_modified (loc); | |
7915 | ||
7916 | bp_modified = 1; | |
7917 | } | |
7918 | } | |
7919 | ||
7920 | if (bp_modified) | |
7921 | observer_notify_breakpoint_modified (b); | |
7922 | } | |
7923 | } | |
7924 | ||
ce78b96d JB |
7925 | /* FORK & VFORK catchpoints. */ |
7926 | ||
e29a4733 PA |
7927 | /* An instance of this type is used to represent a fork or vfork |
7928 | catchpoint. It includes a "struct breakpoint" as a kind of base | |
7929 | class; users downcast to "struct breakpoint *" when needed. A | |
7930 | breakpoint is really of this type iff its ops pointer points to | |
7931 | CATCH_FORK_BREAKPOINT_OPS. */ | |
7932 | ||
7933 | struct fork_catchpoint | |
7934 | { | |
7935 | /* The base class. */ | |
7936 | struct breakpoint base; | |
7937 | ||
7938 | /* Process id of a child process whose forking triggered this | |
7939 | catchpoint. This field is only valid immediately after this | |
7940 | catchpoint has triggered. */ | |
7941 | ptid_t forked_inferior_pid; | |
7942 | }; | |
7943 | ||
4a64f543 MS |
7944 | /* Implement the "insert" breakpoint_ops method for fork |
7945 | catchpoints. */ | |
ce78b96d | 7946 | |
77b06cd7 TJB |
7947 | static int |
7948 | insert_catch_fork (struct bp_location *bl) | |
ce78b96d | 7949 | { |
dfd4cc63 | 7950 | return target_insert_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7951 | } |
7952 | ||
4a64f543 MS |
7953 | /* Implement the "remove" breakpoint_ops method for fork |
7954 | catchpoints. */ | |
ce78b96d JB |
7955 | |
7956 | static int | |
77b06cd7 | 7957 | remove_catch_fork (struct bp_location *bl) |
ce78b96d | 7958 | { |
dfd4cc63 | 7959 | return target_remove_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7960 | } |
7961 | ||
7962 | /* Implement the "breakpoint_hit" breakpoint_ops method for fork | |
7963 | catchpoints. */ | |
7964 | ||
7965 | static int | |
f1310107 | 7966 | breakpoint_hit_catch_fork (const struct bp_location *bl, |
09ac7c10 TT |
7967 | struct address_space *aspace, CORE_ADDR bp_addr, |
7968 | const struct target_waitstatus *ws) | |
ce78b96d | 7969 | { |
e29a4733 PA |
7970 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
7971 | ||
f90263c1 TT |
7972 | if (ws->kind != TARGET_WAITKIND_FORKED) |
7973 | return 0; | |
7974 | ||
7975 | c->forked_inferior_pid = ws->value.related_pid; | |
7976 | return 1; | |
ce78b96d JB |
7977 | } |
7978 | ||
4a64f543 MS |
7979 | /* Implement the "print_it" breakpoint_ops method for fork |
7980 | catchpoints. */ | |
ce78b96d JB |
7981 | |
7982 | static enum print_stop_action | |
348d480f | 7983 | print_it_catch_fork (bpstat bs) |
ce78b96d | 7984 | { |
36dfb11c | 7985 | struct ui_out *uiout = current_uiout; |
348d480f PA |
7986 | struct breakpoint *b = bs->breakpoint_at; |
7987 | struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at; | |
e29a4733 | 7988 | |
ce78b96d | 7989 | annotate_catchpoint (b->number); |
36dfb11c TT |
7990 | if (b->disposition == disp_del) |
7991 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
7992 | else | |
7993 | ui_out_text (uiout, "\nCatchpoint "); | |
7994 | if (ui_out_is_mi_like_p (uiout)) | |
7995 | { | |
7996 | ui_out_field_string (uiout, "reason", | |
7997 | async_reason_lookup (EXEC_ASYNC_FORK)); | |
7998 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
7999 | } | |
8000 | ui_out_field_int (uiout, "bkptno", b->number); | |
8001 | ui_out_text (uiout, " (forked process "); | |
8002 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
8003 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
8004 | return PRINT_SRC_AND_LOC; |
8005 | } | |
8006 | ||
4a64f543 MS |
8007 | /* Implement the "print_one" breakpoint_ops method for fork |
8008 | catchpoints. */ | |
ce78b96d JB |
8009 | |
8010 | static void | |
a6d9a66e | 8011 | print_one_catch_fork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 8012 | { |
e29a4733 | 8013 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 8014 | struct value_print_options opts; |
79a45e25 | 8015 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
8016 | |
8017 | get_user_print_options (&opts); | |
8018 | ||
4a64f543 MS |
8019 | /* Field 4, the address, is omitted (which makes the columns not |
8020 | line up too nicely with the headers, but the effect is relatively | |
8021 | readable). */ | |
79a45b7d | 8022 | if (opts.addressprint) |
ce78b96d JB |
8023 | ui_out_field_skip (uiout, "addr"); |
8024 | annotate_field (5); | |
8025 | ui_out_text (uiout, "fork"); | |
e29a4733 | 8026 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
8027 | { |
8028 | ui_out_text (uiout, ", process "); | |
8029 | ui_out_field_int (uiout, "what", | |
e29a4733 | 8030 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
8031 | ui_out_spaces (uiout, 1); |
8032 | } | |
8ac3646f TT |
8033 | |
8034 | if (ui_out_is_mi_like_p (uiout)) | |
8035 | ui_out_field_string (uiout, "catch-type", "fork"); | |
ce78b96d JB |
8036 | } |
8037 | ||
8038 | /* Implement the "print_mention" breakpoint_ops method for fork | |
8039 | catchpoints. */ | |
8040 | ||
8041 | static void | |
8042 | print_mention_catch_fork (struct breakpoint *b) | |
8043 | { | |
8044 | printf_filtered (_("Catchpoint %d (fork)"), b->number); | |
8045 | } | |
8046 | ||
6149aea9 PA |
8047 | /* Implement the "print_recreate" breakpoint_ops method for fork |
8048 | catchpoints. */ | |
8049 | ||
8050 | static void | |
8051 | print_recreate_catch_fork (struct breakpoint *b, struct ui_file *fp) | |
8052 | { | |
8053 | fprintf_unfiltered (fp, "catch fork"); | |
d9b3f62e | 8054 | print_recreate_thread (b, fp); |
6149aea9 PA |
8055 | } |
8056 | ||
ce78b96d JB |
8057 | /* The breakpoint_ops structure to be used in fork catchpoints. */ |
8058 | ||
2060206e | 8059 | static struct breakpoint_ops catch_fork_breakpoint_ops; |
ce78b96d | 8060 | |
4a64f543 MS |
8061 | /* Implement the "insert" breakpoint_ops method for vfork |
8062 | catchpoints. */ | |
ce78b96d | 8063 | |
77b06cd7 TJB |
8064 | static int |
8065 | insert_catch_vfork (struct bp_location *bl) | |
ce78b96d | 8066 | { |
dfd4cc63 | 8067 | return target_insert_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
8068 | } |
8069 | ||
4a64f543 MS |
8070 | /* Implement the "remove" breakpoint_ops method for vfork |
8071 | catchpoints. */ | |
ce78b96d JB |
8072 | |
8073 | static int | |
77b06cd7 | 8074 | remove_catch_vfork (struct bp_location *bl) |
ce78b96d | 8075 | { |
dfd4cc63 | 8076 | return target_remove_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
8077 | } |
8078 | ||
8079 | /* Implement the "breakpoint_hit" breakpoint_ops method for vfork | |
8080 | catchpoints. */ | |
8081 | ||
8082 | static int | |
f1310107 | 8083 | breakpoint_hit_catch_vfork (const struct bp_location *bl, |
09ac7c10 TT |
8084 | struct address_space *aspace, CORE_ADDR bp_addr, |
8085 | const struct target_waitstatus *ws) | |
ce78b96d | 8086 | { |
e29a4733 PA |
8087 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
8088 | ||
f90263c1 TT |
8089 | if (ws->kind != TARGET_WAITKIND_VFORKED) |
8090 | return 0; | |
8091 | ||
8092 | c->forked_inferior_pid = ws->value.related_pid; | |
8093 | return 1; | |
ce78b96d JB |
8094 | } |
8095 | ||
4a64f543 MS |
8096 | /* Implement the "print_it" breakpoint_ops method for vfork |
8097 | catchpoints. */ | |
ce78b96d JB |
8098 | |
8099 | static enum print_stop_action | |
348d480f | 8100 | print_it_catch_vfork (bpstat bs) |
ce78b96d | 8101 | { |
36dfb11c | 8102 | struct ui_out *uiout = current_uiout; |
348d480f | 8103 | struct breakpoint *b = bs->breakpoint_at; |
e29a4733 PA |
8104 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
8105 | ||
ce78b96d | 8106 | annotate_catchpoint (b->number); |
36dfb11c TT |
8107 | if (b->disposition == disp_del) |
8108 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8109 | else | |
8110 | ui_out_text (uiout, "\nCatchpoint "); | |
8111 | if (ui_out_is_mi_like_p (uiout)) | |
8112 | { | |
8113 | ui_out_field_string (uiout, "reason", | |
8114 | async_reason_lookup (EXEC_ASYNC_VFORK)); | |
8115 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8116 | } | |
8117 | ui_out_field_int (uiout, "bkptno", b->number); | |
8118 | ui_out_text (uiout, " (vforked process "); | |
8119 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
8120 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
8121 | return PRINT_SRC_AND_LOC; |
8122 | } | |
8123 | ||
4a64f543 MS |
8124 | /* Implement the "print_one" breakpoint_ops method for vfork |
8125 | catchpoints. */ | |
ce78b96d JB |
8126 | |
8127 | static void | |
a6d9a66e | 8128 | print_one_catch_vfork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 8129 | { |
e29a4733 | 8130 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 8131 | struct value_print_options opts; |
79a45e25 | 8132 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
8133 | |
8134 | get_user_print_options (&opts); | |
4a64f543 MS |
8135 | /* Field 4, the address, is omitted (which makes the columns not |
8136 | line up too nicely with the headers, but the effect is relatively | |
8137 | readable). */ | |
79a45b7d | 8138 | if (opts.addressprint) |
ce78b96d JB |
8139 | ui_out_field_skip (uiout, "addr"); |
8140 | annotate_field (5); | |
8141 | ui_out_text (uiout, "vfork"); | |
e29a4733 | 8142 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
8143 | { |
8144 | ui_out_text (uiout, ", process "); | |
8145 | ui_out_field_int (uiout, "what", | |
e29a4733 | 8146 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
8147 | ui_out_spaces (uiout, 1); |
8148 | } | |
8ac3646f TT |
8149 | |
8150 | if (ui_out_is_mi_like_p (uiout)) | |
8151 | ui_out_field_string (uiout, "catch-type", "vfork"); | |
ce78b96d JB |
8152 | } |
8153 | ||
8154 | /* Implement the "print_mention" breakpoint_ops method for vfork | |
8155 | catchpoints. */ | |
8156 | ||
8157 | static void | |
8158 | print_mention_catch_vfork (struct breakpoint *b) | |
8159 | { | |
8160 | printf_filtered (_("Catchpoint %d (vfork)"), b->number); | |
8161 | } | |
8162 | ||
6149aea9 PA |
8163 | /* Implement the "print_recreate" breakpoint_ops method for vfork |
8164 | catchpoints. */ | |
8165 | ||
8166 | static void | |
8167 | print_recreate_catch_vfork (struct breakpoint *b, struct ui_file *fp) | |
8168 | { | |
8169 | fprintf_unfiltered (fp, "catch vfork"); | |
d9b3f62e | 8170 | print_recreate_thread (b, fp); |
6149aea9 PA |
8171 | } |
8172 | ||
ce78b96d JB |
8173 | /* The breakpoint_ops structure to be used in vfork catchpoints. */ |
8174 | ||
2060206e | 8175 | static struct breakpoint_ops catch_vfork_breakpoint_ops; |
ce78b96d | 8176 | |
edcc5120 TT |
8177 | /* An instance of this type is used to represent an solib catchpoint. |
8178 | It includes a "struct breakpoint" as a kind of base class; users | |
8179 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8180 | really of this type iff its ops pointer points to | |
8181 | CATCH_SOLIB_BREAKPOINT_OPS. */ | |
8182 | ||
8183 | struct solib_catchpoint | |
8184 | { | |
8185 | /* The base class. */ | |
8186 | struct breakpoint base; | |
8187 | ||
8188 | /* True for "catch load", false for "catch unload". */ | |
8189 | unsigned char is_load; | |
8190 | ||
8191 | /* Regular expression to match, if any. COMPILED is only valid when | |
8192 | REGEX is non-NULL. */ | |
8193 | char *regex; | |
8194 | regex_t compiled; | |
8195 | }; | |
8196 | ||
8197 | static void | |
8198 | dtor_catch_solib (struct breakpoint *b) | |
8199 | { | |
8200 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8201 | ||
8202 | if (self->regex) | |
8203 | regfree (&self->compiled); | |
8204 | xfree (self->regex); | |
8205 | ||
8206 | base_breakpoint_ops.dtor (b); | |
8207 | } | |
8208 | ||
8209 | static int | |
8210 | insert_catch_solib (struct bp_location *ignore) | |
8211 | { | |
8212 | return 0; | |
8213 | } | |
8214 | ||
8215 | static int | |
8216 | remove_catch_solib (struct bp_location *ignore) | |
8217 | { | |
8218 | return 0; | |
8219 | } | |
8220 | ||
8221 | static int | |
8222 | breakpoint_hit_catch_solib (const struct bp_location *bl, | |
8223 | struct address_space *aspace, | |
8224 | CORE_ADDR bp_addr, | |
8225 | const struct target_waitstatus *ws) | |
8226 | { | |
8227 | struct solib_catchpoint *self = (struct solib_catchpoint *) bl->owner; | |
8228 | struct breakpoint *other; | |
8229 | ||
8230 | if (ws->kind == TARGET_WAITKIND_LOADED) | |
8231 | return 1; | |
8232 | ||
8233 | ALL_BREAKPOINTS (other) | |
8234 | { | |
8235 | struct bp_location *other_bl; | |
8236 | ||
8237 | if (other == bl->owner) | |
8238 | continue; | |
8239 | ||
8240 | if (other->type != bp_shlib_event) | |
8241 | continue; | |
8242 | ||
8243 | if (self->base.pspace != NULL && other->pspace != self->base.pspace) | |
8244 | continue; | |
8245 | ||
8246 | for (other_bl = other->loc; other_bl != NULL; other_bl = other_bl->next) | |
8247 | { | |
8248 | if (other->ops->breakpoint_hit (other_bl, aspace, bp_addr, ws)) | |
8249 | return 1; | |
8250 | } | |
8251 | } | |
8252 | ||
8253 | return 0; | |
8254 | } | |
8255 | ||
8256 | static void | |
8257 | check_status_catch_solib (struct bpstats *bs) | |
8258 | { | |
8259 | struct solib_catchpoint *self | |
8260 | = (struct solib_catchpoint *) bs->breakpoint_at; | |
8261 | int ix; | |
8262 | ||
8263 | if (self->is_load) | |
8264 | { | |
8265 | struct so_list *iter; | |
8266 | ||
8267 | for (ix = 0; | |
8268 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
8269 | ix, iter); | |
8270 | ++ix) | |
8271 | { | |
8272 | if (!self->regex | |
8273 | || regexec (&self->compiled, iter->so_name, 0, NULL, 0) == 0) | |
8274 | return; | |
8275 | } | |
8276 | } | |
8277 | else | |
8278 | { | |
8279 | char *iter; | |
8280 | ||
8281 | for (ix = 0; | |
8282 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
8283 | ix, iter); | |
8284 | ++ix) | |
8285 | { | |
8286 | if (!self->regex | |
8287 | || regexec (&self->compiled, iter, 0, NULL, 0) == 0) | |
8288 | return; | |
8289 | } | |
8290 | } | |
8291 | ||
8292 | bs->stop = 0; | |
8293 | bs->print_it = print_it_noop; | |
8294 | } | |
8295 | ||
8296 | static enum print_stop_action | |
8297 | print_it_catch_solib (bpstat bs) | |
8298 | { | |
8299 | struct breakpoint *b = bs->breakpoint_at; | |
8300 | struct ui_out *uiout = current_uiout; | |
8301 | ||
8302 | annotate_catchpoint (b->number); | |
8303 | if (b->disposition == disp_del) | |
8304 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8305 | else | |
8306 | ui_out_text (uiout, "\nCatchpoint "); | |
8307 | ui_out_field_int (uiout, "bkptno", b->number); | |
8308 | ui_out_text (uiout, "\n"); | |
8309 | if (ui_out_is_mi_like_p (uiout)) | |
8310 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8311 | print_solib_event (1); | |
8312 | return PRINT_SRC_AND_LOC; | |
8313 | } | |
8314 | ||
8315 | static void | |
8316 | print_one_catch_solib (struct breakpoint *b, struct bp_location **locs) | |
8317 | { | |
8318 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8319 | struct value_print_options opts; | |
8320 | struct ui_out *uiout = current_uiout; | |
8321 | char *msg; | |
8322 | ||
8323 | get_user_print_options (&opts); | |
8324 | /* Field 4, the address, is omitted (which makes the columns not | |
8325 | line up too nicely with the headers, but the effect is relatively | |
8326 | readable). */ | |
8327 | if (opts.addressprint) | |
8328 | { | |
8329 | annotate_field (4); | |
8330 | ui_out_field_skip (uiout, "addr"); | |
8331 | } | |
8332 | ||
8333 | annotate_field (5); | |
8334 | if (self->is_load) | |
8335 | { | |
8336 | if (self->regex) | |
8337 | msg = xstrprintf (_("load of library matching %s"), self->regex); | |
8338 | else | |
8339 | msg = xstrdup (_("load of library")); | |
8340 | } | |
8341 | else | |
8342 | { | |
8343 | if (self->regex) | |
8344 | msg = xstrprintf (_("unload of library matching %s"), self->regex); | |
8345 | else | |
8346 | msg = xstrdup (_("unload of library")); | |
8347 | } | |
8348 | ui_out_field_string (uiout, "what", msg); | |
8349 | xfree (msg); | |
8ac3646f TT |
8350 | |
8351 | if (ui_out_is_mi_like_p (uiout)) | |
8352 | ui_out_field_string (uiout, "catch-type", | |
8353 | self->is_load ? "load" : "unload"); | |
edcc5120 TT |
8354 | } |
8355 | ||
8356 | static void | |
8357 | print_mention_catch_solib (struct breakpoint *b) | |
8358 | { | |
8359 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8360 | ||
8361 | printf_filtered (_("Catchpoint %d (%s)"), b->number, | |
8362 | self->is_load ? "load" : "unload"); | |
8363 | } | |
8364 | ||
8365 | static void | |
8366 | print_recreate_catch_solib (struct breakpoint *b, struct ui_file *fp) | |
8367 | { | |
8368 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8369 | ||
8370 | fprintf_unfiltered (fp, "%s %s", | |
8371 | b->disposition == disp_del ? "tcatch" : "catch", | |
8372 | self->is_load ? "load" : "unload"); | |
8373 | if (self->regex) | |
8374 | fprintf_unfiltered (fp, " %s", self->regex); | |
8375 | fprintf_unfiltered (fp, "\n"); | |
8376 | } | |
8377 | ||
8378 | static struct breakpoint_ops catch_solib_breakpoint_ops; | |
8379 | ||
91985142 MG |
8380 | /* Shared helper function (MI and CLI) for creating and installing |
8381 | a shared object event catchpoint. If IS_LOAD is non-zero then | |
8382 | the events to be caught are load events, otherwise they are | |
8383 | unload events. If IS_TEMP is non-zero the catchpoint is a | |
8384 | temporary one. If ENABLED is non-zero the catchpoint is | |
8385 | created in an enabled state. */ | |
edcc5120 | 8386 | |
91985142 MG |
8387 | void |
8388 | add_solib_catchpoint (char *arg, int is_load, int is_temp, int enabled) | |
edcc5120 TT |
8389 | { |
8390 | struct solib_catchpoint *c; | |
8391 | struct gdbarch *gdbarch = get_current_arch (); | |
edcc5120 TT |
8392 | struct cleanup *cleanup; |
8393 | ||
edcc5120 TT |
8394 | if (!arg) |
8395 | arg = ""; | |
8396 | arg = skip_spaces (arg); | |
8397 | ||
8398 | c = XCNEW (struct solib_catchpoint); | |
8399 | cleanup = make_cleanup (xfree, c); | |
8400 | ||
8401 | if (*arg != '\0') | |
8402 | { | |
8403 | int errcode; | |
8404 | ||
8405 | errcode = regcomp (&c->compiled, arg, REG_NOSUB); | |
8406 | if (errcode != 0) | |
8407 | { | |
8408 | char *err = get_regcomp_error (errcode, &c->compiled); | |
8409 | ||
8410 | make_cleanup (xfree, err); | |
8411 | error (_("Invalid regexp (%s): %s"), err, arg); | |
8412 | } | |
8413 | c->regex = xstrdup (arg); | |
8414 | } | |
8415 | ||
8416 | c->is_load = is_load; | |
91985142 | 8417 | init_catchpoint (&c->base, gdbarch, is_temp, NULL, |
edcc5120 TT |
8418 | &catch_solib_breakpoint_ops); |
8419 | ||
91985142 MG |
8420 | c->base.enable_state = enabled ? bp_enabled : bp_disabled; |
8421 | ||
edcc5120 TT |
8422 | discard_cleanups (cleanup); |
8423 | install_breakpoint (0, &c->base, 1); | |
8424 | } | |
8425 | ||
91985142 MG |
8426 | /* A helper function that does all the work for "catch load" and |
8427 | "catch unload". */ | |
8428 | ||
8429 | static void | |
8430 | catch_load_or_unload (char *arg, int from_tty, int is_load, | |
8431 | struct cmd_list_element *command) | |
8432 | { | |
8433 | int tempflag; | |
8434 | const int enabled = 1; | |
8435 | ||
8436 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; | |
8437 | ||
8438 | add_solib_catchpoint (arg, is_load, tempflag, enabled); | |
8439 | } | |
8440 | ||
edcc5120 TT |
8441 | static void |
8442 | catch_load_command_1 (char *arg, int from_tty, | |
8443 | struct cmd_list_element *command) | |
8444 | { | |
8445 | catch_load_or_unload (arg, from_tty, 1, command); | |
8446 | } | |
8447 | ||
8448 | static void | |
8449 | catch_unload_command_1 (char *arg, int from_tty, | |
8450 | struct cmd_list_element *command) | |
8451 | { | |
8452 | catch_load_or_unload (arg, from_tty, 0, command); | |
8453 | } | |
8454 | ||
be5c67c1 PA |
8455 | /* An instance of this type is used to represent a syscall catchpoint. |
8456 | It includes a "struct breakpoint" as a kind of base class; users | |
8457 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8458 | really of this type iff its ops pointer points to | |
8459 | CATCH_SYSCALL_BREAKPOINT_OPS. */ | |
8460 | ||
8461 | struct syscall_catchpoint | |
8462 | { | |
8463 | /* The base class. */ | |
8464 | struct breakpoint base; | |
8465 | ||
8466 | /* Syscall numbers used for the 'catch syscall' feature. If no | |
8467 | syscall has been specified for filtering, its value is NULL. | |
8468 | Otherwise, it holds a list of all syscalls to be caught. The | |
8469 | list elements are allocated with xmalloc. */ | |
8470 | VEC(int) *syscalls_to_be_caught; | |
8471 | }; | |
8472 | ||
8473 | /* Implement the "dtor" breakpoint_ops method for syscall | |
8474 | catchpoints. */ | |
8475 | ||
8476 | static void | |
8477 | dtor_catch_syscall (struct breakpoint *b) | |
8478 | { | |
8479 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; | |
8480 | ||
8481 | VEC_free (int, c->syscalls_to_be_caught); | |
348d480f | 8482 | |
2060206e | 8483 | base_breakpoint_ops.dtor (b); |
be5c67c1 PA |
8484 | } |
8485 | ||
fa3064dd YQ |
8486 | static const struct inferior_data *catch_syscall_inferior_data = NULL; |
8487 | ||
8488 | struct catch_syscall_inferior_data | |
8489 | { | |
8490 | /* We keep a count of the number of times the user has requested a | |
8491 | particular syscall to be tracked, and pass this information to the | |
8492 | target. This lets capable targets implement filtering directly. */ | |
8493 | ||
8494 | /* Number of times that "any" syscall is requested. */ | |
8495 | int any_syscall_count; | |
8496 | ||
8497 | /* Count of each system call. */ | |
8498 | VEC(int) *syscalls_counts; | |
8499 | ||
8500 | /* This counts all syscall catch requests, so we can readily determine | |
8501 | if any catching is necessary. */ | |
8502 | int total_syscalls_count; | |
8503 | }; | |
8504 | ||
8505 | static struct catch_syscall_inferior_data* | |
8506 | get_catch_syscall_inferior_data (struct inferior *inf) | |
8507 | { | |
8508 | struct catch_syscall_inferior_data *inf_data; | |
8509 | ||
8510 | inf_data = inferior_data (inf, catch_syscall_inferior_data); | |
8511 | if (inf_data == NULL) | |
8512 | { | |
41bf6aca | 8513 | inf_data = XCNEW (struct catch_syscall_inferior_data); |
fa3064dd YQ |
8514 | set_inferior_data (inf, catch_syscall_inferior_data, inf_data); |
8515 | } | |
8516 | ||
8517 | return inf_data; | |
8518 | } | |
8519 | ||
8520 | static void | |
8521 | catch_syscall_inferior_data_cleanup (struct inferior *inf, void *arg) | |
8522 | { | |
8523 | xfree (arg); | |
8524 | } | |
8525 | ||
8526 | ||
a96d9b2e SDJ |
8527 | /* Implement the "insert" breakpoint_ops method for syscall |
8528 | catchpoints. */ | |
8529 | ||
77b06cd7 TJB |
8530 | static int |
8531 | insert_catch_syscall (struct bp_location *bl) | |
a96d9b2e | 8532 | { |
be5c67c1 | 8533 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bl->owner; |
a96d9b2e | 8534 | struct inferior *inf = current_inferior (); |
fa3064dd YQ |
8535 | struct catch_syscall_inferior_data *inf_data |
8536 | = get_catch_syscall_inferior_data (inf); | |
a96d9b2e | 8537 | |
fa3064dd | 8538 | ++inf_data->total_syscalls_count; |
be5c67c1 | 8539 | if (!c->syscalls_to_be_caught) |
fa3064dd | 8540 | ++inf_data->any_syscall_count; |
a96d9b2e SDJ |
8541 | else |
8542 | { | |
8543 | int i, iter; | |
cc59ec59 | 8544 | |
a96d9b2e | 8545 | for (i = 0; |
be5c67c1 | 8546 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8547 | i++) |
8548 | { | |
8549 | int elem; | |
cc59ec59 | 8550 | |
fa3064dd | 8551 | if (iter >= VEC_length (int, inf_data->syscalls_counts)) |
a96d9b2e | 8552 | { |
fa3064dd | 8553 | int old_size = VEC_length (int, inf_data->syscalls_counts); |
3e43a32a MS |
8554 | uintptr_t vec_addr_offset |
8555 | = old_size * ((uintptr_t) sizeof (int)); | |
a96d9b2e | 8556 | uintptr_t vec_addr; |
fa3064dd YQ |
8557 | VEC_safe_grow (int, inf_data->syscalls_counts, iter + 1); |
8558 | vec_addr = ((uintptr_t) VEC_address (int, | |
8559 | inf_data->syscalls_counts) | |
8560 | + vec_addr_offset); | |
a96d9b2e SDJ |
8561 | memset ((void *) vec_addr, 0, |
8562 | (iter + 1 - old_size) * sizeof (int)); | |
8563 | } | |
fa3064dd YQ |
8564 | elem = VEC_index (int, inf_data->syscalls_counts, iter); |
8565 | VEC_replace (int, inf_data->syscalls_counts, iter, ++elem); | |
a96d9b2e SDJ |
8566 | } |
8567 | } | |
8568 | ||
dfd4cc63 | 8569 | return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid), |
fa3064dd YQ |
8570 | inf_data->total_syscalls_count != 0, |
8571 | inf_data->any_syscall_count, | |
8572 | VEC_length (int, | |
8573 | inf_data->syscalls_counts), | |
8574 | VEC_address (int, | |
8575 | inf_data->syscalls_counts)); | |
a96d9b2e SDJ |
8576 | } |
8577 | ||
8578 | /* Implement the "remove" breakpoint_ops method for syscall | |
8579 | catchpoints. */ | |
8580 | ||
8581 | static int | |
77b06cd7 | 8582 | remove_catch_syscall (struct bp_location *bl) |
a96d9b2e | 8583 | { |
be5c67c1 | 8584 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bl->owner; |
a96d9b2e | 8585 | struct inferior *inf = current_inferior (); |
fa3064dd YQ |
8586 | struct catch_syscall_inferior_data *inf_data |
8587 | = get_catch_syscall_inferior_data (inf); | |
a96d9b2e | 8588 | |
fa3064dd | 8589 | --inf_data->total_syscalls_count; |
be5c67c1 | 8590 | if (!c->syscalls_to_be_caught) |
fa3064dd | 8591 | --inf_data->any_syscall_count; |
a96d9b2e SDJ |
8592 | else |
8593 | { | |
8594 | int i, iter; | |
cc59ec59 | 8595 | |
a96d9b2e | 8596 | for (i = 0; |
be5c67c1 | 8597 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8598 | i++) |
8599 | { | |
8600 | int elem; | |
fa3064dd | 8601 | if (iter >= VEC_length (int, inf_data->syscalls_counts)) |
a96d9b2e SDJ |
8602 | /* Shouldn't happen. */ |
8603 | continue; | |
fa3064dd YQ |
8604 | elem = VEC_index (int, inf_data->syscalls_counts, iter); |
8605 | VEC_replace (int, inf_data->syscalls_counts, iter, --elem); | |
a96d9b2e SDJ |
8606 | } |
8607 | } | |
8608 | ||
dfd4cc63 | 8609 | return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid), |
fa3064dd YQ |
8610 | inf_data->total_syscalls_count != 0, |
8611 | inf_data->any_syscall_count, | |
8612 | VEC_length (int, | |
8613 | inf_data->syscalls_counts), | |
3e43a32a | 8614 | VEC_address (int, |
fa3064dd | 8615 | inf_data->syscalls_counts)); |
a96d9b2e SDJ |
8616 | } |
8617 | ||
8618 | /* Implement the "breakpoint_hit" breakpoint_ops method for syscall | |
8619 | catchpoints. */ | |
8620 | ||
8621 | static int | |
f1310107 | 8622 | breakpoint_hit_catch_syscall (const struct bp_location *bl, |
09ac7c10 TT |
8623 | struct address_space *aspace, CORE_ADDR bp_addr, |
8624 | const struct target_waitstatus *ws) | |
a96d9b2e | 8625 | { |
4a64f543 MS |
8626 | /* We must check if we are catching specific syscalls in this |
8627 | breakpoint. If we are, then we must guarantee that the called | |
8628 | syscall is the same syscall we are catching. */ | |
a96d9b2e | 8629 | int syscall_number = 0; |
be5c67c1 PA |
8630 | const struct syscall_catchpoint *c |
8631 | = (const struct syscall_catchpoint *) bl->owner; | |
a96d9b2e | 8632 | |
f90263c1 TT |
8633 | if (ws->kind != TARGET_WAITKIND_SYSCALL_ENTRY |
8634 | && ws->kind != TARGET_WAITKIND_SYSCALL_RETURN) | |
a96d9b2e SDJ |
8635 | return 0; |
8636 | ||
f90263c1 TT |
8637 | syscall_number = ws->value.syscall_number; |
8638 | ||
a96d9b2e | 8639 | /* Now, checking if the syscall is the same. */ |
be5c67c1 | 8640 | if (c->syscalls_to_be_caught) |
a96d9b2e SDJ |
8641 | { |
8642 | int i, iter; | |
cc59ec59 | 8643 | |
a96d9b2e | 8644 | for (i = 0; |
be5c67c1 | 8645 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8646 | i++) |
8647 | if (syscall_number == iter) | |
4924df79 GKB |
8648 | return 1; |
8649 | ||
8650 | return 0; | |
a96d9b2e SDJ |
8651 | } |
8652 | ||
8653 | return 1; | |
8654 | } | |
8655 | ||
8656 | /* Implement the "print_it" breakpoint_ops method for syscall | |
8657 | catchpoints. */ | |
8658 | ||
8659 | static enum print_stop_action | |
348d480f | 8660 | print_it_catch_syscall (bpstat bs) |
a96d9b2e | 8661 | { |
36dfb11c | 8662 | struct ui_out *uiout = current_uiout; |
348d480f | 8663 | struct breakpoint *b = bs->breakpoint_at; |
a96d9b2e SDJ |
8664 | /* These are needed because we want to know in which state a |
8665 | syscall is. It can be in the TARGET_WAITKIND_SYSCALL_ENTRY | |
8666 | or TARGET_WAITKIND_SYSCALL_RETURN, and depending on it we | |
8667 | must print "called syscall" or "returned from syscall". */ | |
8668 | ptid_t ptid; | |
8669 | struct target_waitstatus last; | |
8670 | struct syscall s; | |
a96d9b2e SDJ |
8671 | |
8672 | get_last_target_status (&ptid, &last); | |
8673 | ||
8674 | get_syscall_by_number (last.value.syscall_number, &s); | |
8675 | ||
8676 | annotate_catchpoint (b->number); | |
8677 | ||
36dfb11c TT |
8678 | if (b->disposition == disp_del) |
8679 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
a96d9b2e | 8680 | else |
36dfb11c TT |
8681 | ui_out_text (uiout, "\nCatchpoint "); |
8682 | if (ui_out_is_mi_like_p (uiout)) | |
8683 | { | |
8684 | ui_out_field_string (uiout, "reason", | |
8685 | async_reason_lookup (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY | |
8686 | ? EXEC_ASYNC_SYSCALL_ENTRY | |
8687 | : EXEC_ASYNC_SYSCALL_RETURN)); | |
8688 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8689 | } | |
8690 | ui_out_field_int (uiout, "bkptno", b->number); | |
a96d9b2e SDJ |
8691 | |
8692 | if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY) | |
36dfb11c TT |
8693 | ui_out_text (uiout, " (call to syscall "); |
8694 | else | |
8695 | ui_out_text (uiout, " (returned from syscall "); | |
a96d9b2e | 8696 | |
36dfb11c TT |
8697 | if (s.name == NULL || ui_out_is_mi_like_p (uiout)) |
8698 | ui_out_field_int (uiout, "syscall-number", last.value.syscall_number); | |
8699 | if (s.name != NULL) | |
8700 | ui_out_field_string (uiout, "syscall-name", s.name); | |
8701 | ||
8702 | ui_out_text (uiout, "), "); | |
a96d9b2e SDJ |
8703 | |
8704 | return PRINT_SRC_AND_LOC; | |
8705 | } | |
8706 | ||
8707 | /* Implement the "print_one" breakpoint_ops method for syscall | |
8708 | catchpoints. */ | |
8709 | ||
8710 | static void | |
8711 | print_one_catch_syscall (struct breakpoint *b, | |
f1310107 | 8712 | struct bp_location **last_loc) |
a96d9b2e | 8713 | { |
be5c67c1 | 8714 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
a96d9b2e | 8715 | struct value_print_options opts; |
79a45e25 | 8716 | struct ui_out *uiout = current_uiout; |
a96d9b2e SDJ |
8717 | |
8718 | get_user_print_options (&opts); | |
4a64f543 MS |
8719 | /* Field 4, the address, is omitted (which makes the columns not |
8720 | line up too nicely with the headers, but the effect is relatively | |
8721 | readable). */ | |
a96d9b2e SDJ |
8722 | if (opts.addressprint) |
8723 | ui_out_field_skip (uiout, "addr"); | |
8724 | annotate_field (5); | |
8725 | ||
be5c67c1 PA |
8726 | if (c->syscalls_to_be_caught |
8727 | && VEC_length (int, c->syscalls_to_be_caught) > 1) | |
a96d9b2e SDJ |
8728 | ui_out_text (uiout, "syscalls \""); |
8729 | else | |
8730 | ui_out_text (uiout, "syscall \""); | |
8731 | ||
be5c67c1 | 8732 | if (c->syscalls_to_be_caught) |
a96d9b2e SDJ |
8733 | { |
8734 | int i, iter; | |
8735 | char *text = xstrprintf ("%s", ""); | |
cc59ec59 | 8736 | |
a96d9b2e | 8737 | for (i = 0; |
be5c67c1 | 8738 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8739 | i++) |
8740 | { | |
8741 | char *x = text; | |
8742 | struct syscall s; | |
8743 | get_syscall_by_number (iter, &s); | |
8744 | ||
8745 | if (s.name != NULL) | |
8746 | text = xstrprintf ("%s%s, ", text, s.name); | |
8747 | else | |
8748 | text = xstrprintf ("%s%d, ", text, iter); | |
8749 | ||
8750 | /* We have to xfree the last 'text' (now stored at 'x') | |
e5dd4106 | 8751 | because xstrprintf dynamically allocates new space for it |
a96d9b2e SDJ |
8752 | on every call. */ |
8753 | xfree (x); | |
8754 | } | |
8755 | /* Remove the last comma. */ | |
8756 | text[strlen (text) - 2] = '\0'; | |
8757 | ui_out_field_string (uiout, "what", text); | |
8758 | } | |
8759 | else | |
8760 | ui_out_field_string (uiout, "what", "<any syscall>"); | |
8761 | ui_out_text (uiout, "\" "); | |
8ac3646f TT |
8762 | |
8763 | if (ui_out_is_mi_like_p (uiout)) | |
8764 | ui_out_field_string (uiout, "catch-type", "syscall"); | |
a96d9b2e SDJ |
8765 | } |
8766 | ||
8767 | /* Implement the "print_mention" breakpoint_ops method for syscall | |
8768 | catchpoints. */ | |
8769 | ||
8770 | static void | |
8771 | print_mention_catch_syscall (struct breakpoint *b) | |
8772 | { | |
be5c67c1 PA |
8773 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
8774 | ||
8775 | if (c->syscalls_to_be_caught) | |
a96d9b2e SDJ |
8776 | { |
8777 | int i, iter; | |
8778 | ||
be5c67c1 | 8779 | if (VEC_length (int, c->syscalls_to_be_caught) > 1) |
a96d9b2e SDJ |
8780 | printf_filtered (_("Catchpoint %d (syscalls"), b->number); |
8781 | else | |
8782 | printf_filtered (_("Catchpoint %d (syscall"), b->number); | |
8783 | ||
8784 | for (i = 0; | |
be5c67c1 | 8785 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8786 | i++) |
8787 | { | |
8788 | struct syscall s; | |
8789 | get_syscall_by_number (iter, &s); | |
8790 | ||
8791 | if (s.name) | |
8792 | printf_filtered (" '%s' [%d]", s.name, s.number); | |
8793 | else | |
8794 | printf_filtered (" %d", s.number); | |
8795 | } | |
8796 | printf_filtered (")"); | |
8797 | } | |
8798 | else | |
8799 | printf_filtered (_("Catchpoint %d (any syscall)"), | |
8800 | b->number); | |
8801 | } | |
8802 | ||
6149aea9 PA |
8803 | /* Implement the "print_recreate" breakpoint_ops method for syscall |
8804 | catchpoints. */ | |
8805 | ||
8806 | static void | |
8807 | print_recreate_catch_syscall (struct breakpoint *b, struct ui_file *fp) | |
8808 | { | |
be5c67c1 PA |
8809 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
8810 | ||
6149aea9 PA |
8811 | fprintf_unfiltered (fp, "catch syscall"); |
8812 | ||
be5c67c1 | 8813 | if (c->syscalls_to_be_caught) |
6149aea9 PA |
8814 | { |
8815 | int i, iter; | |
8816 | ||
8817 | for (i = 0; | |
be5c67c1 | 8818 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
6149aea9 PA |
8819 | i++) |
8820 | { | |
8821 | struct syscall s; | |
8822 | ||
8823 | get_syscall_by_number (iter, &s); | |
8824 | if (s.name) | |
8825 | fprintf_unfiltered (fp, " %s", s.name); | |
8826 | else | |
8827 | fprintf_unfiltered (fp, " %d", s.number); | |
8828 | } | |
8829 | } | |
d9b3f62e | 8830 | print_recreate_thread (b, fp); |
6149aea9 PA |
8831 | } |
8832 | ||
a96d9b2e SDJ |
8833 | /* The breakpoint_ops structure to be used in syscall catchpoints. */ |
8834 | ||
2060206e | 8835 | static struct breakpoint_ops catch_syscall_breakpoint_ops; |
a96d9b2e SDJ |
8836 | |
8837 | /* Returns non-zero if 'b' is a syscall catchpoint. */ | |
8838 | ||
8839 | static int | |
8840 | syscall_catchpoint_p (struct breakpoint *b) | |
8841 | { | |
8842 | return (b->ops == &catch_syscall_breakpoint_ops); | |
8843 | } | |
8844 | ||
346774a9 PA |
8845 | /* Initialize a new breakpoint of the bp_catchpoint kind. If TEMPFLAG |
8846 | is non-zero, then make the breakpoint temporary. If COND_STRING is | |
8847 | not NULL, then store it in the breakpoint. OPS, if not NULL, is | |
8848 | the breakpoint_ops structure associated to the catchpoint. */ | |
ce78b96d | 8849 | |
ab04a2af | 8850 | void |
346774a9 PA |
8851 | init_catchpoint (struct breakpoint *b, |
8852 | struct gdbarch *gdbarch, int tempflag, | |
8853 | char *cond_string, | |
c0a91b2b | 8854 | const struct breakpoint_ops *ops) |
c906108c | 8855 | { |
c5aa993b | 8856 | struct symtab_and_line sal; |
346774a9 | 8857 | |
fe39c653 | 8858 | init_sal (&sal); |
6c95b8df | 8859 | sal.pspace = current_program_space; |
c5aa993b | 8860 | |
28010a5d | 8861 | init_raw_breakpoint (b, gdbarch, sal, bp_catchpoint, ops); |
ce78b96d | 8862 | |
1b36a34b | 8863 | b->cond_string = (cond_string == NULL) ? NULL : xstrdup (cond_string); |
b5de0fa7 | 8864 | b->disposition = tempflag ? disp_del : disp_donttouch; |
346774a9 PA |
8865 | } |
8866 | ||
28010a5d | 8867 | void |
3ea46bff | 8868 | install_breakpoint (int internal, struct breakpoint *b, int update_gll) |
c56053d2 PA |
8869 | { |
8870 | add_to_breakpoint_chain (b); | |
3a5c3e22 | 8871 | set_breakpoint_number (internal, b); |
558a9d82 YQ |
8872 | if (is_tracepoint (b)) |
8873 | set_tracepoint_count (breakpoint_count); | |
3a5c3e22 PA |
8874 | if (!internal) |
8875 | mention (b); | |
c56053d2 | 8876 | observer_notify_breakpoint_created (b); |
3ea46bff YQ |
8877 | |
8878 | if (update_gll) | |
44702360 | 8879 | update_global_location_list (UGLL_MAY_INSERT); |
c56053d2 PA |
8880 | } |
8881 | ||
9b70b993 | 8882 | static void |
a6d9a66e UW |
8883 | create_fork_vfork_event_catchpoint (struct gdbarch *gdbarch, |
8884 | int tempflag, char *cond_string, | |
c0a91b2b | 8885 | const struct breakpoint_ops *ops) |
c906108c | 8886 | { |
e29a4733 | 8887 | struct fork_catchpoint *c = XNEW (struct fork_catchpoint); |
ce78b96d | 8888 | |
e29a4733 PA |
8889 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, ops); |
8890 | ||
8891 | c->forked_inferior_pid = null_ptid; | |
8892 | ||
3ea46bff | 8893 | install_breakpoint (0, &c->base, 1); |
c906108c SS |
8894 | } |
8895 | ||
fe798b75 JB |
8896 | /* Exec catchpoints. */ |
8897 | ||
b4d90040 PA |
8898 | /* An instance of this type is used to represent an exec catchpoint. |
8899 | It includes a "struct breakpoint" as a kind of base class; users | |
8900 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8901 | really of this type iff its ops pointer points to | |
8902 | CATCH_EXEC_BREAKPOINT_OPS. */ | |
8903 | ||
8904 | struct exec_catchpoint | |
8905 | { | |
8906 | /* The base class. */ | |
8907 | struct breakpoint base; | |
8908 | ||
8909 | /* Filename of a program whose exec triggered this catchpoint. | |
8910 | This field is only valid immediately after this catchpoint has | |
8911 | triggered. */ | |
8912 | char *exec_pathname; | |
8913 | }; | |
8914 | ||
8915 | /* Implement the "dtor" breakpoint_ops method for exec | |
8916 | catchpoints. */ | |
8917 | ||
8918 | static void | |
8919 | dtor_catch_exec (struct breakpoint *b) | |
8920 | { | |
8921 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; | |
8922 | ||
8923 | xfree (c->exec_pathname); | |
348d480f | 8924 | |
2060206e | 8925 | base_breakpoint_ops.dtor (b); |
b4d90040 PA |
8926 | } |
8927 | ||
77b06cd7 TJB |
8928 | static int |
8929 | insert_catch_exec (struct bp_location *bl) | |
c906108c | 8930 | { |
dfd4cc63 | 8931 | return target_insert_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8932 | } |
c906108c | 8933 | |
fe798b75 | 8934 | static int |
77b06cd7 | 8935 | remove_catch_exec (struct bp_location *bl) |
fe798b75 | 8936 | { |
dfd4cc63 | 8937 | return target_remove_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8938 | } |
c906108c | 8939 | |
fe798b75 | 8940 | static int |
f1310107 | 8941 | breakpoint_hit_catch_exec (const struct bp_location *bl, |
09ac7c10 TT |
8942 | struct address_space *aspace, CORE_ADDR bp_addr, |
8943 | const struct target_waitstatus *ws) | |
fe798b75 | 8944 | { |
b4d90040 PA |
8945 | struct exec_catchpoint *c = (struct exec_catchpoint *) bl->owner; |
8946 | ||
f90263c1 TT |
8947 | if (ws->kind != TARGET_WAITKIND_EXECD) |
8948 | return 0; | |
8949 | ||
8950 | c->exec_pathname = xstrdup (ws->value.execd_pathname); | |
8951 | return 1; | |
fe798b75 | 8952 | } |
c906108c | 8953 | |
fe798b75 | 8954 | static enum print_stop_action |
348d480f | 8955 | print_it_catch_exec (bpstat bs) |
fe798b75 | 8956 | { |
36dfb11c | 8957 | struct ui_out *uiout = current_uiout; |
348d480f | 8958 | struct breakpoint *b = bs->breakpoint_at; |
b4d90040 PA |
8959 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
8960 | ||
fe798b75 | 8961 | annotate_catchpoint (b->number); |
36dfb11c TT |
8962 | if (b->disposition == disp_del) |
8963 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8964 | else | |
8965 | ui_out_text (uiout, "\nCatchpoint "); | |
8966 | if (ui_out_is_mi_like_p (uiout)) | |
8967 | { | |
8968 | ui_out_field_string (uiout, "reason", | |
8969 | async_reason_lookup (EXEC_ASYNC_EXEC)); | |
8970 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8971 | } | |
8972 | ui_out_field_int (uiout, "bkptno", b->number); | |
8973 | ui_out_text (uiout, " (exec'd "); | |
8974 | ui_out_field_string (uiout, "new-exec", c->exec_pathname); | |
8975 | ui_out_text (uiout, "), "); | |
8976 | ||
fe798b75 | 8977 | return PRINT_SRC_AND_LOC; |
c906108c SS |
8978 | } |
8979 | ||
fe798b75 | 8980 | static void |
a6d9a66e | 8981 | print_one_catch_exec (struct breakpoint *b, struct bp_location **last_loc) |
fe798b75 | 8982 | { |
b4d90040 | 8983 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
fe798b75 | 8984 | struct value_print_options opts; |
79a45e25 | 8985 | struct ui_out *uiout = current_uiout; |
fe798b75 JB |
8986 | |
8987 | get_user_print_options (&opts); | |
8988 | ||
8989 | /* Field 4, the address, is omitted (which makes the columns | |
8990 | not line up too nicely with the headers, but the effect | |
8991 | is relatively readable). */ | |
8992 | if (opts.addressprint) | |
8993 | ui_out_field_skip (uiout, "addr"); | |
8994 | annotate_field (5); | |
8995 | ui_out_text (uiout, "exec"); | |
b4d90040 | 8996 | if (c->exec_pathname != NULL) |
fe798b75 JB |
8997 | { |
8998 | ui_out_text (uiout, ", program \""); | |
b4d90040 | 8999 | ui_out_field_string (uiout, "what", c->exec_pathname); |
fe798b75 JB |
9000 | ui_out_text (uiout, "\" "); |
9001 | } | |
8ac3646f TT |
9002 | |
9003 | if (ui_out_is_mi_like_p (uiout)) | |
9004 | ui_out_field_string (uiout, "catch-type", "exec"); | |
fe798b75 JB |
9005 | } |
9006 | ||
9007 | static void | |
9008 | print_mention_catch_exec (struct breakpoint *b) | |
9009 | { | |
9010 | printf_filtered (_("Catchpoint %d (exec)"), b->number); | |
9011 | } | |
9012 | ||
6149aea9 PA |
9013 | /* Implement the "print_recreate" breakpoint_ops method for exec |
9014 | catchpoints. */ | |
9015 | ||
9016 | static void | |
9017 | print_recreate_catch_exec (struct breakpoint *b, struct ui_file *fp) | |
9018 | { | |
9019 | fprintf_unfiltered (fp, "catch exec"); | |
d9b3f62e | 9020 | print_recreate_thread (b, fp); |
6149aea9 PA |
9021 | } |
9022 | ||
2060206e | 9023 | static struct breakpoint_ops catch_exec_breakpoint_ops; |
fe798b75 | 9024 | |
a96d9b2e SDJ |
9025 | static void |
9026 | create_syscall_event_catchpoint (int tempflag, VEC(int) *filter, | |
c0a91b2b | 9027 | const struct breakpoint_ops *ops) |
a96d9b2e | 9028 | { |
be5c67c1 | 9029 | struct syscall_catchpoint *c; |
a96d9b2e | 9030 | struct gdbarch *gdbarch = get_current_arch (); |
a96d9b2e | 9031 | |
be5c67c1 PA |
9032 | c = XNEW (struct syscall_catchpoint); |
9033 | init_catchpoint (&c->base, gdbarch, tempflag, NULL, ops); | |
9034 | c->syscalls_to_be_caught = filter; | |
a96d9b2e | 9035 | |
3ea46bff | 9036 | install_breakpoint (0, &c->base, 1); |
a96d9b2e SDJ |
9037 | } |
9038 | ||
c906108c | 9039 | static int |
fba45db2 | 9040 | hw_breakpoint_used_count (void) |
c906108c | 9041 | { |
c906108c | 9042 | int i = 0; |
f1310107 TJB |
9043 | struct breakpoint *b; |
9044 | struct bp_location *bl; | |
c906108c SS |
9045 | |
9046 | ALL_BREAKPOINTS (b) | |
c5aa993b | 9047 | { |
d6b74ac4 | 9048 | if (b->type == bp_hardware_breakpoint && breakpoint_enabled (b)) |
f1310107 TJB |
9049 | for (bl = b->loc; bl; bl = bl->next) |
9050 | { | |
9051 | /* Special types of hardware breakpoints may use more than | |
9052 | one register. */ | |
348d480f | 9053 | i += b->ops->resources_needed (bl); |
f1310107 | 9054 | } |
c5aa993b | 9055 | } |
c906108c SS |
9056 | |
9057 | return i; | |
9058 | } | |
9059 | ||
a1398e0c PA |
9060 | /* Returns the resources B would use if it were a hardware |
9061 | watchpoint. */ | |
9062 | ||
c906108c | 9063 | static int |
a1398e0c | 9064 | hw_watchpoint_use_count (struct breakpoint *b) |
c906108c | 9065 | { |
c906108c | 9066 | int i = 0; |
e09342b5 | 9067 | struct bp_location *bl; |
c906108c | 9068 | |
a1398e0c PA |
9069 | if (!breakpoint_enabled (b)) |
9070 | return 0; | |
9071 | ||
9072 | for (bl = b->loc; bl; bl = bl->next) | |
9073 | { | |
9074 | /* Special types of hardware watchpoints may use more than | |
9075 | one register. */ | |
9076 | i += b->ops->resources_needed (bl); | |
9077 | } | |
9078 | ||
9079 | return i; | |
9080 | } | |
9081 | ||
9082 | /* Returns the sum the used resources of all hardware watchpoints of | |
9083 | type TYPE in the breakpoints list. Also returns in OTHER_TYPE_USED | |
9084 | the sum of the used resources of all hardware watchpoints of other | |
9085 | types _not_ TYPE. */ | |
9086 | ||
9087 | static int | |
9088 | hw_watchpoint_used_count_others (struct breakpoint *except, | |
9089 | enum bptype type, int *other_type_used) | |
9090 | { | |
9091 | int i = 0; | |
9092 | struct breakpoint *b; | |
9093 | ||
c906108c SS |
9094 | *other_type_used = 0; |
9095 | ALL_BREAKPOINTS (b) | |
e09342b5 | 9096 | { |
a1398e0c PA |
9097 | if (b == except) |
9098 | continue; | |
e09342b5 TJB |
9099 | if (!breakpoint_enabled (b)) |
9100 | continue; | |
9101 | ||
a1398e0c PA |
9102 | if (b->type == type) |
9103 | i += hw_watchpoint_use_count (b); | |
9104 | else if (is_hardware_watchpoint (b)) | |
9105 | *other_type_used = 1; | |
e09342b5 TJB |
9106 | } |
9107 | ||
c906108c SS |
9108 | return i; |
9109 | } | |
9110 | ||
c906108c | 9111 | void |
fba45db2 | 9112 | disable_watchpoints_before_interactive_call_start (void) |
c906108c | 9113 | { |
c5aa993b | 9114 | struct breakpoint *b; |
c906108c SS |
9115 | |
9116 | ALL_BREAKPOINTS (b) | |
c5aa993b | 9117 | { |
cc60f2e3 | 9118 | if (is_watchpoint (b) && breakpoint_enabled (b)) |
c5aa993b | 9119 | { |
b5de0fa7 | 9120 | b->enable_state = bp_call_disabled; |
44702360 | 9121 | update_global_location_list (UGLL_DONT_INSERT); |
c5aa993b JM |
9122 | } |
9123 | } | |
c906108c SS |
9124 | } |
9125 | ||
9126 | void | |
fba45db2 | 9127 | enable_watchpoints_after_interactive_call_stop (void) |
c906108c | 9128 | { |
c5aa993b | 9129 | struct breakpoint *b; |
c906108c SS |
9130 | |
9131 | ALL_BREAKPOINTS (b) | |
c5aa993b | 9132 | { |
cc60f2e3 | 9133 | if (is_watchpoint (b) && b->enable_state == bp_call_disabled) |
c5aa993b | 9134 | { |
b5de0fa7 | 9135 | b->enable_state = bp_enabled; |
44702360 | 9136 | update_global_location_list (UGLL_MAY_INSERT); |
c5aa993b JM |
9137 | } |
9138 | } | |
c906108c SS |
9139 | } |
9140 | ||
8bea4e01 UW |
9141 | void |
9142 | disable_breakpoints_before_startup (void) | |
9143 | { | |
6c95b8df | 9144 | current_program_space->executing_startup = 1; |
44702360 | 9145 | update_global_location_list (UGLL_DONT_INSERT); |
8bea4e01 UW |
9146 | } |
9147 | ||
9148 | void | |
9149 | enable_breakpoints_after_startup (void) | |
9150 | { | |
6c95b8df | 9151 | current_program_space->executing_startup = 0; |
f8eba3c6 | 9152 | breakpoint_re_set (); |
8bea4e01 UW |
9153 | } |
9154 | ||
c906108c SS |
9155 | |
9156 | /* Set a breakpoint that will evaporate an end of command | |
9157 | at address specified by SAL. | |
9158 | Restrict it to frame FRAME if FRAME is nonzero. */ | |
9159 | ||
9160 | struct breakpoint * | |
a6d9a66e UW |
9161 | set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal, |
9162 | struct frame_id frame_id, enum bptype type) | |
c906108c | 9163 | { |
52f0bd74 | 9164 | struct breakpoint *b; |
edb3359d | 9165 | |
193facb3 JK |
9166 | /* If FRAME_ID is valid, it should be a real frame, not an inlined or |
9167 | tail-called one. */ | |
9168 | gdb_assert (!frame_id_artificial_p (frame_id)); | |
edb3359d | 9169 | |
06edf0c0 | 9170 | b = set_raw_breakpoint (gdbarch, sal, type, &momentary_breakpoint_ops); |
b5de0fa7 EZ |
9171 | b->enable_state = bp_enabled; |
9172 | b->disposition = disp_donttouch; | |
818dd999 | 9173 | b->frame_id = frame_id; |
c906108c | 9174 | |
4a64f543 MS |
9175 | /* If we're debugging a multi-threaded program, then we want |
9176 | momentary breakpoints to be active in only a single thread of | |
9177 | control. */ | |
39f77062 KB |
9178 | if (in_thread_list (inferior_ptid)) |
9179 | b->thread = pid_to_thread_id (inferior_ptid); | |
c906108c | 9180 | |
44702360 | 9181 | update_global_location_list_nothrow (UGLL_MAY_INSERT); |
74960c60 | 9182 | |
c906108c SS |
9183 | return b; |
9184 | } | |
611c83ae | 9185 | |
06edf0c0 | 9186 | /* Make a momentary breakpoint based on the master breakpoint ORIG. |
a1aa2221 LM |
9187 | The new breakpoint will have type TYPE, use OPS as its |
9188 | breakpoint_ops, and will set enabled to LOC_ENABLED. */ | |
e58b0e63 | 9189 | |
06edf0c0 PA |
9190 | static struct breakpoint * |
9191 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
9192 | enum bptype type, | |
a1aa2221 LM |
9193 | const struct breakpoint_ops *ops, |
9194 | int loc_enabled) | |
e58b0e63 PA |
9195 | { |
9196 | struct breakpoint *copy; | |
9197 | ||
06edf0c0 | 9198 | copy = set_raw_breakpoint_without_location (orig->gdbarch, type, ops); |
e58b0e63 | 9199 | copy->loc = allocate_bp_location (copy); |
0e30163f | 9200 | set_breakpoint_location_function (copy->loc, 1); |
e58b0e63 | 9201 | |
a6d9a66e | 9202 | copy->loc->gdbarch = orig->loc->gdbarch; |
e58b0e63 PA |
9203 | copy->loc->requested_address = orig->loc->requested_address; |
9204 | copy->loc->address = orig->loc->address; | |
9205 | copy->loc->section = orig->loc->section; | |
6c95b8df | 9206 | copy->loc->pspace = orig->loc->pspace; |
55aa24fb | 9207 | copy->loc->probe = orig->loc->probe; |
f8eba3c6 | 9208 | copy->loc->line_number = orig->loc->line_number; |
2f202fde | 9209 | copy->loc->symtab = orig->loc->symtab; |
a1aa2221 | 9210 | copy->loc->enabled = loc_enabled; |
e58b0e63 PA |
9211 | copy->frame_id = orig->frame_id; |
9212 | copy->thread = orig->thread; | |
6c95b8df | 9213 | copy->pspace = orig->pspace; |
e58b0e63 PA |
9214 | |
9215 | copy->enable_state = bp_enabled; | |
9216 | copy->disposition = disp_donttouch; | |
9217 | copy->number = internal_breakpoint_number--; | |
9218 | ||
44702360 | 9219 | update_global_location_list_nothrow (UGLL_DONT_INSERT); |
e58b0e63 PA |
9220 | return copy; |
9221 | } | |
9222 | ||
06edf0c0 PA |
9223 | /* Make a deep copy of momentary breakpoint ORIG. Returns NULL if |
9224 | ORIG is NULL. */ | |
9225 | ||
9226 | struct breakpoint * | |
9227 | clone_momentary_breakpoint (struct breakpoint *orig) | |
9228 | { | |
9229 | /* If there's nothing to clone, then return nothing. */ | |
9230 | if (orig == NULL) | |
9231 | return NULL; | |
9232 | ||
a1aa2221 | 9233 | return momentary_breakpoint_from_master (orig, orig->type, orig->ops, 0); |
06edf0c0 PA |
9234 | } |
9235 | ||
611c83ae | 9236 | struct breakpoint * |
a6d9a66e UW |
9237 | set_momentary_breakpoint_at_pc (struct gdbarch *gdbarch, CORE_ADDR pc, |
9238 | enum bptype type) | |
611c83ae PA |
9239 | { |
9240 | struct symtab_and_line sal; | |
9241 | ||
9242 | sal = find_pc_line (pc, 0); | |
9243 | sal.pc = pc; | |
9244 | sal.section = find_pc_overlay (pc); | |
9245 | sal.explicit_pc = 1; | |
9246 | ||
a6d9a66e | 9247 | return set_momentary_breakpoint (gdbarch, sal, null_frame_id, type); |
611c83ae | 9248 | } |
c906108c | 9249 | \f |
c5aa993b | 9250 | |
c906108c SS |
9251 | /* Tell the user we have just set a breakpoint B. */ |
9252 | ||
9253 | static void | |
fba45db2 | 9254 | mention (struct breakpoint *b) |
c906108c | 9255 | { |
348d480f | 9256 | b->ops->print_mention (b); |
79a45e25 | 9257 | if (ui_out_is_mi_like_p (current_uiout)) |
fb40c209 | 9258 | return; |
c906108c SS |
9259 | printf_filtered ("\n"); |
9260 | } | |
c906108c | 9261 | \f |
c5aa993b | 9262 | |
0d381245 | 9263 | static struct bp_location * |
39d61571 | 9264 | add_location_to_breakpoint (struct breakpoint *b, |
0d381245 VP |
9265 | const struct symtab_and_line *sal) |
9266 | { | |
9267 | struct bp_location *loc, **tmp; | |
3742cc8b YQ |
9268 | CORE_ADDR adjusted_address; |
9269 | struct gdbarch *loc_gdbarch = get_sal_arch (*sal); | |
9270 | ||
9271 | if (loc_gdbarch == NULL) | |
9272 | loc_gdbarch = b->gdbarch; | |
9273 | ||
9274 | /* Adjust the breakpoint's address prior to allocating a location. | |
9275 | Once we call allocate_bp_location(), that mostly uninitialized | |
9276 | location will be placed on the location chain. Adjustment of the | |
9277 | breakpoint may cause target_read_memory() to be called and we do | |
9278 | not want its scan of the location chain to find a breakpoint and | |
9279 | location that's only been partially initialized. */ | |
9280 | adjusted_address = adjust_breakpoint_address (loc_gdbarch, | |
9281 | sal->pc, b->type); | |
0d381245 | 9282 | |
d30113d4 | 9283 | /* Sort the locations by their ADDRESS. */ |
39d61571 | 9284 | loc = allocate_bp_location (b); |
d30113d4 JK |
9285 | for (tmp = &(b->loc); *tmp != NULL && (*tmp)->address <= adjusted_address; |
9286 | tmp = &((*tmp)->next)) | |
0d381245 | 9287 | ; |
d30113d4 | 9288 | loc->next = *tmp; |
0d381245 | 9289 | *tmp = loc; |
3742cc8b | 9290 | |
0d381245 | 9291 | loc->requested_address = sal->pc; |
3742cc8b | 9292 | loc->address = adjusted_address; |
6c95b8df | 9293 | loc->pspace = sal->pspace; |
729662a5 TT |
9294 | loc->probe.probe = sal->probe; |
9295 | loc->probe.objfile = sal->objfile; | |
6c95b8df | 9296 | gdb_assert (loc->pspace != NULL); |
0d381245 | 9297 | loc->section = sal->section; |
3742cc8b | 9298 | loc->gdbarch = loc_gdbarch; |
f8eba3c6 | 9299 | loc->line_number = sal->line; |
2f202fde | 9300 | loc->symtab = sal->symtab; |
f8eba3c6 | 9301 | |
0e30163f JK |
9302 | set_breakpoint_location_function (loc, |
9303 | sal->explicit_pc || sal->explicit_line); | |
0d381245 VP |
9304 | return loc; |
9305 | } | |
514f746b AR |
9306 | \f |
9307 | ||
9308 | /* Return 1 if LOC is pointing to a permanent breakpoint, | |
9309 | return 0 otherwise. */ | |
9310 | ||
9311 | static int | |
9312 | bp_loc_is_permanent (struct bp_location *loc) | |
9313 | { | |
9314 | int len; | |
9315 | CORE_ADDR addr; | |
1afeeb75 | 9316 | const gdb_byte *bpoint; |
514f746b | 9317 | gdb_byte *target_mem; |
939c61fa JK |
9318 | struct cleanup *cleanup; |
9319 | int retval = 0; | |
514f746b AR |
9320 | |
9321 | gdb_assert (loc != NULL); | |
9322 | ||
9323 | addr = loc->address; | |
1afeeb75 | 9324 | bpoint = gdbarch_breakpoint_from_pc (loc->gdbarch, &addr, &len); |
514f746b | 9325 | |
939c61fa | 9326 | /* Software breakpoints unsupported? */ |
1afeeb75 | 9327 | if (bpoint == NULL) |
939c61fa JK |
9328 | return 0; |
9329 | ||
514f746b AR |
9330 | target_mem = alloca (len); |
9331 | ||
939c61fa JK |
9332 | /* Enable the automatic memory restoration from breakpoints while |
9333 | we read the memory. Otherwise we could say about our temporary | |
9334 | breakpoints they are permanent. */ | |
6c95b8df PA |
9335 | cleanup = save_current_space_and_thread (); |
9336 | ||
9337 | switch_to_program_space_and_thread (loc->pspace); | |
9338 | make_show_memory_breakpoints_cleanup (0); | |
939c61fa | 9339 | |
514f746b | 9340 | if (target_read_memory (loc->address, target_mem, len) == 0 |
1afeeb75 | 9341 | && memcmp (target_mem, bpoint, len) == 0) |
939c61fa | 9342 | retval = 1; |
514f746b | 9343 | |
939c61fa JK |
9344 | do_cleanups (cleanup); |
9345 | ||
9346 | return retval; | |
514f746b AR |
9347 | } |
9348 | ||
e7e0cddf SS |
9349 | /* Build a command list for the dprintf corresponding to the current |
9350 | settings of the dprintf style options. */ | |
9351 | ||
9352 | static void | |
9353 | update_dprintf_command_list (struct breakpoint *b) | |
9354 | { | |
9355 | char *dprintf_args = b->extra_string; | |
9356 | char *printf_line = NULL; | |
9357 | ||
9358 | if (!dprintf_args) | |
9359 | return; | |
9360 | ||
9361 | dprintf_args = skip_spaces (dprintf_args); | |
9362 | ||
9363 | /* Allow a comma, as it may have terminated a location, but don't | |
9364 | insist on it. */ | |
9365 | if (*dprintf_args == ',') | |
9366 | ++dprintf_args; | |
9367 | dprintf_args = skip_spaces (dprintf_args); | |
9368 | ||
9369 | if (*dprintf_args != '"') | |
9370 | error (_("Bad format string, missing '\"'.")); | |
9371 | ||
d3ce09f5 | 9372 | if (strcmp (dprintf_style, dprintf_style_gdb) == 0) |
e7e0cddf | 9373 | printf_line = xstrprintf ("printf %s", dprintf_args); |
d3ce09f5 | 9374 | else if (strcmp (dprintf_style, dprintf_style_call) == 0) |
e7e0cddf SS |
9375 | { |
9376 | if (!dprintf_function) | |
9377 | error (_("No function supplied for dprintf call")); | |
9378 | ||
9379 | if (dprintf_channel && strlen (dprintf_channel) > 0) | |
9380 | printf_line = xstrprintf ("call (void) %s (%s,%s)", | |
9381 | dprintf_function, | |
9382 | dprintf_channel, | |
9383 | dprintf_args); | |
9384 | else | |
9385 | printf_line = xstrprintf ("call (void) %s (%s)", | |
9386 | dprintf_function, | |
9387 | dprintf_args); | |
9388 | } | |
d3ce09f5 SS |
9389 | else if (strcmp (dprintf_style, dprintf_style_agent) == 0) |
9390 | { | |
9391 | if (target_can_run_breakpoint_commands ()) | |
9392 | printf_line = xstrprintf ("agent-printf %s", dprintf_args); | |
9393 | else | |
9394 | { | |
9395 | warning (_("Target cannot run dprintf commands, falling back to GDB printf")); | |
9396 | printf_line = xstrprintf ("printf %s", dprintf_args); | |
9397 | } | |
9398 | } | |
e7e0cddf SS |
9399 | else |
9400 | internal_error (__FILE__, __LINE__, | |
9401 | _("Invalid dprintf style.")); | |
9402 | ||
f28045c2 | 9403 | gdb_assert (printf_line != NULL); |
9d6e6e84 | 9404 | /* Manufacture a printf sequence. */ |
f28045c2 | 9405 | { |
9d6e6e84 HZ |
9406 | struct command_line *printf_cmd_line |
9407 | = xmalloc (sizeof (struct command_line)); | |
e7e0cddf | 9408 | |
f28045c2 YQ |
9409 | printf_cmd_line = xmalloc (sizeof (struct command_line)); |
9410 | printf_cmd_line->control_type = simple_control; | |
9411 | printf_cmd_line->body_count = 0; | |
9412 | printf_cmd_line->body_list = NULL; | |
9d6e6e84 | 9413 | printf_cmd_line->next = NULL; |
f28045c2 | 9414 | printf_cmd_line->line = printf_line; |
e7e0cddf | 9415 | |
f28045c2 YQ |
9416 | breakpoint_set_commands (b, printf_cmd_line); |
9417 | } | |
e7e0cddf SS |
9418 | } |
9419 | ||
9420 | /* Update all dprintf commands, making their command lists reflect | |
9421 | current style settings. */ | |
9422 | ||
9423 | static void | |
9424 | update_dprintf_commands (char *args, int from_tty, | |
9425 | struct cmd_list_element *c) | |
9426 | { | |
9427 | struct breakpoint *b; | |
9428 | ||
9429 | ALL_BREAKPOINTS (b) | |
9430 | { | |
9431 | if (b->type == bp_dprintf) | |
9432 | update_dprintf_command_list (b); | |
9433 | } | |
9434 | } | |
c3f6f71d | 9435 | |
018d34a4 VP |
9436 | /* Create a breakpoint with SAL as location. Use ADDR_STRING |
9437 | as textual description of the location, and COND_STRING | |
db107f19 | 9438 | as condition expression. */ |
018d34a4 VP |
9439 | |
9440 | static void | |
d9b3f62e PA |
9441 | init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch, |
9442 | struct symtabs_and_lines sals, char *addr_string, | |
f8eba3c6 | 9443 | char *filter, char *cond_string, |
e7e0cddf | 9444 | char *extra_string, |
d9b3f62e PA |
9445 | enum bptype type, enum bpdisp disposition, |
9446 | int thread, int task, int ignore_count, | |
c0a91b2b | 9447 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9448 | int enabled, int internal, unsigned flags, |
9449 | int display_canonical) | |
018d34a4 | 9450 | { |
0d381245 | 9451 | int i; |
018d34a4 VP |
9452 | |
9453 | if (type == bp_hardware_breakpoint) | |
9454 | { | |
fbbd034e AS |
9455 | int target_resources_ok; |
9456 | ||
9457 | i = hw_breakpoint_used_count (); | |
9458 | target_resources_ok = | |
9459 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
018d34a4 VP |
9460 | i + 1, 0); |
9461 | if (target_resources_ok == 0) | |
9462 | error (_("No hardware breakpoint support in the target.")); | |
9463 | else if (target_resources_ok < 0) | |
9464 | error (_("Hardware breakpoints used exceeds limit.")); | |
9465 | } | |
9466 | ||
6c95b8df PA |
9467 | gdb_assert (sals.nelts > 0); |
9468 | ||
0d381245 VP |
9469 | for (i = 0; i < sals.nelts; ++i) |
9470 | { | |
9471 | struct symtab_and_line sal = sals.sals[i]; | |
9472 | struct bp_location *loc; | |
9473 | ||
9474 | if (from_tty) | |
5af949e3 UW |
9475 | { |
9476 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); | |
9477 | if (!loc_gdbarch) | |
9478 | loc_gdbarch = gdbarch; | |
9479 | ||
9480 | describe_other_breakpoints (loc_gdbarch, | |
6c95b8df | 9481 | sal.pspace, sal.pc, sal.section, thread); |
5af949e3 | 9482 | } |
0d381245 VP |
9483 | |
9484 | if (i == 0) | |
9485 | { | |
d9b3f62e | 9486 | init_raw_breakpoint (b, gdbarch, sal, type, ops); |
0d381245 | 9487 | b->thread = thread; |
4a306c9a | 9488 | b->task = task; |
855a6e68 | 9489 | |
0d381245 | 9490 | b->cond_string = cond_string; |
e7e0cddf | 9491 | b->extra_string = extra_string; |
0d381245 | 9492 | b->ignore_count = ignore_count; |
41447f92 | 9493 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
0d381245 | 9494 | b->disposition = disposition; |
6c95b8df | 9495 | |
44f238bb PA |
9496 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9497 | b->loc->inserted = 1; | |
9498 | ||
0fb4aa4b PA |
9499 | if (type == bp_static_tracepoint) |
9500 | { | |
d9b3f62e | 9501 | struct tracepoint *t = (struct tracepoint *) b; |
0fb4aa4b PA |
9502 | struct static_tracepoint_marker marker; |
9503 | ||
983af33b | 9504 | if (strace_marker_p (b)) |
0fb4aa4b PA |
9505 | { |
9506 | /* We already know the marker exists, otherwise, we | |
9507 | wouldn't see a sal for it. */ | |
9508 | char *p = &addr_string[3]; | |
9509 | char *endp; | |
9510 | char *marker_str; | |
0fb4aa4b | 9511 | |
e9cafbcc | 9512 | p = skip_spaces (p); |
0fb4aa4b | 9513 | |
e9cafbcc | 9514 | endp = skip_to_space (p); |
0fb4aa4b PA |
9515 | |
9516 | marker_str = savestring (p, endp - p); | |
d9b3f62e | 9517 | t->static_trace_marker_id = marker_str; |
0fb4aa4b | 9518 | |
3e43a32a MS |
9519 | printf_filtered (_("Probed static tracepoint " |
9520 | "marker \"%s\"\n"), | |
d9b3f62e | 9521 | t->static_trace_marker_id); |
0fb4aa4b PA |
9522 | } |
9523 | else if (target_static_tracepoint_marker_at (sal.pc, &marker)) | |
9524 | { | |
d9b3f62e | 9525 | t->static_trace_marker_id = xstrdup (marker.str_id); |
0fb4aa4b PA |
9526 | release_static_tracepoint_marker (&marker); |
9527 | ||
3e43a32a MS |
9528 | printf_filtered (_("Probed static tracepoint " |
9529 | "marker \"%s\"\n"), | |
d9b3f62e | 9530 | t->static_trace_marker_id); |
0fb4aa4b PA |
9531 | } |
9532 | else | |
3e43a32a MS |
9533 | warning (_("Couldn't determine the static " |
9534 | "tracepoint marker to probe")); | |
0fb4aa4b PA |
9535 | } |
9536 | ||
0d381245 VP |
9537 | loc = b->loc; |
9538 | } | |
9539 | else | |
018d34a4 | 9540 | { |
39d61571 | 9541 | loc = add_location_to_breakpoint (b, &sal); |
44f238bb PA |
9542 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9543 | loc->inserted = 1; | |
0d381245 VP |
9544 | } |
9545 | ||
514f746b AR |
9546 | if (bp_loc_is_permanent (loc)) |
9547 | make_breakpoint_permanent (b); | |
9548 | ||
0d381245 VP |
9549 | if (b->cond_string) |
9550 | { | |
bbc13ae3 KS |
9551 | const char *arg = b->cond_string; |
9552 | ||
1bb9788d TT |
9553 | loc->cond = parse_exp_1 (&arg, loc->address, |
9554 | block_for_pc (loc->address), 0); | |
0d381245 | 9555 | if (*arg) |
588ae58c | 9556 | error (_("Garbage '%s' follows condition"), arg); |
018d34a4 | 9557 | } |
e7e0cddf SS |
9558 | |
9559 | /* Dynamic printf requires and uses additional arguments on the | |
9560 | command line, otherwise it's an error. */ | |
9561 | if (type == bp_dprintf) | |
9562 | { | |
9563 | if (b->extra_string) | |
9564 | update_dprintf_command_list (b); | |
9565 | else | |
9566 | error (_("Format string required")); | |
9567 | } | |
9568 | else if (b->extra_string) | |
588ae58c | 9569 | error (_("Garbage '%s' at end of command"), b->extra_string); |
855a6e68 | 9570 | } |
018d34a4 | 9571 | |
56435ebe | 9572 | b->display_canonical = display_canonical; |
018d34a4 VP |
9573 | if (addr_string) |
9574 | b->addr_string = addr_string; | |
9575 | else | |
9576 | /* addr_string has to be used or breakpoint_re_set will delete | |
9577 | me. */ | |
5af949e3 UW |
9578 | b->addr_string |
9579 | = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address)); | |
f8eba3c6 | 9580 | b->filter = filter; |
d9b3f62e | 9581 | } |
018d34a4 | 9582 | |
d9b3f62e PA |
9583 | static void |
9584 | create_breakpoint_sal (struct gdbarch *gdbarch, | |
9585 | struct symtabs_and_lines sals, char *addr_string, | |
f8eba3c6 | 9586 | char *filter, char *cond_string, |
e7e0cddf | 9587 | char *extra_string, |
d9b3f62e PA |
9588 | enum bptype type, enum bpdisp disposition, |
9589 | int thread, int task, int ignore_count, | |
c0a91b2b | 9590 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9591 | int enabled, int internal, unsigned flags, |
9592 | int display_canonical) | |
d9b3f62e PA |
9593 | { |
9594 | struct breakpoint *b; | |
9595 | struct cleanup *old_chain; | |
9596 | ||
9597 | if (is_tracepoint_type (type)) | |
9598 | { | |
9599 | struct tracepoint *t; | |
9600 | ||
9601 | t = XCNEW (struct tracepoint); | |
9602 | b = &t->base; | |
9603 | } | |
9604 | else | |
9605 | b = XNEW (struct breakpoint); | |
9606 | ||
9607 | old_chain = make_cleanup (xfree, b); | |
9608 | ||
9609 | init_breakpoint_sal (b, gdbarch, | |
9610 | sals, addr_string, | |
e7e0cddf | 9611 | filter, cond_string, extra_string, |
d9b3f62e PA |
9612 | type, disposition, |
9613 | thread, task, ignore_count, | |
9614 | ops, from_tty, | |
44f238bb PA |
9615 | enabled, internal, flags, |
9616 | display_canonical); | |
d9b3f62e PA |
9617 | discard_cleanups (old_chain); |
9618 | ||
3ea46bff | 9619 | install_breakpoint (internal, b, 0); |
018d34a4 VP |
9620 | } |
9621 | ||
9622 | /* Add SALS.nelts breakpoints to the breakpoint table. For each | |
9623 | SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i] | |
9624 | value. COND_STRING, if not NULL, specified the condition to be | |
9625 | used for all breakpoints. Essentially the only case where | |
9626 | SALS.nelts is not 1 is when we set a breakpoint on an overloaded | |
9627 | function. In that case, it's still not possible to specify | |
9628 | separate conditions for different overloaded functions, so | |
9629 | we take just a single condition string. | |
9630 | ||
c3f6f71d | 9631 | NOTE: If the function succeeds, the caller is expected to cleanup |
018d34a4 | 9632 | the arrays ADDR_STRING, COND_STRING, and SALS (but not the |
c3f6f71d JM |
9633 | array contents). If the function fails (error() is called), the |
9634 | caller is expected to cleanups both the ADDR_STRING, COND_STRING, | |
4a64f543 | 9635 | COND and SALS arrays and each of those arrays contents. */ |
c906108c SS |
9636 | |
9637 | static void | |
8cdf0e15 | 9638 | create_breakpoints_sal (struct gdbarch *gdbarch, |
7efd8fc2 | 9639 | struct linespec_result *canonical, |
e7e0cddf | 9640 | char *cond_string, char *extra_string, |
8cdf0e15 VP |
9641 | enum bptype type, enum bpdisp disposition, |
9642 | int thread, int task, int ignore_count, | |
c0a91b2b | 9643 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb | 9644 | int enabled, int internal, unsigned flags) |
c906108c | 9645 | { |
018d34a4 | 9646 | int i; |
f8eba3c6 | 9647 | struct linespec_sals *lsal; |
cc59ec59 | 9648 | |
f8eba3c6 TT |
9649 | if (canonical->pre_expanded) |
9650 | gdb_assert (VEC_length (linespec_sals, canonical->sals) == 1); | |
9651 | ||
9652 | for (i = 0; VEC_iterate (linespec_sals, canonical->sals, i, lsal); ++i) | |
c3f6f71d | 9653 | { |
f8eba3c6 TT |
9654 | /* Note that 'addr_string' can be NULL in the case of a plain |
9655 | 'break', without arguments. */ | |
9656 | char *addr_string = (canonical->addr_string | |
9657 | ? xstrdup (canonical->addr_string) | |
9658 | : NULL); | |
9659 | char *filter_string = lsal->canonical ? xstrdup (lsal->canonical) : NULL; | |
9660 | struct cleanup *inner = make_cleanup (xfree, addr_string); | |
0d381245 | 9661 | |
f8eba3c6 TT |
9662 | make_cleanup (xfree, filter_string); |
9663 | create_breakpoint_sal (gdbarch, lsal->sals, | |
9664 | addr_string, | |
9665 | filter_string, | |
e7e0cddf SS |
9666 | cond_string, extra_string, |
9667 | type, disposition, | |
84f4c1fe | 9668 | thread, task, ignore_count, ops, |
44f238bb | 9669 | from_tty, enabled, internal, flags, |
56435ebe | 9670 | canonical->special_display); |
f8eba3c6 | 9671 | discard_cleanups (inner); |
c3f6f71d | 9672 | } |
c3f6f71d | 9673 | } |
c906108c | 9674 | |
9998af43 | 9675 | /* Parse ADDRESS which is assumed to be a SAL specification possibly |
c3f6f71d | 9676 | followed by conditionals. On return, SALS contains an array of SAL |
4a64f543 | 9677 | addresses found. ADDR_STRING contains a vector of (canonical) |
9998af43 TJB |
9678 | address strings. ADDRESS points to the end of the SAL. |
9679 | ||
9680 | The array and the line spec strings are allocated on the heap, it is | |
9681 | the caller's responsibility to free them. */ | |
c906108c | 9682 | |
b9362cc7 | 9683 | static void |
c3f6f71d | 9684 | parse_breakpoint_sals (char **address, |
58438ac1 | 9685 | struct linespec_result *canonical) |
c3f6f71d | 9686 | { |
c3f6f71d | 9687 | /* If no arg given, or if first arg is 'if ', use the default |
4a64f543 | 9688 | breakpoint. */ |
c3f6f71d JM |
9689 | if ((*address) == NULL |
9690 | || (strncmp ((*address), "if", 2) == 0 && isspace ((*address)[2]))) | |
c906108c | 9691 | { |
1bfeeb0f JL |
9692 | /* The last displayed codepoint, if it's valid, is our default breakpoint |
9693 | address. */ | |
9694 | if (last_displayed_sal_is_valid ()) | |
c906108c | 9695 | { |
f8eba3c6 | 9696 | struct linespec_sals lsal; |
c3f6f71d | 9697 | struct symtab_and_line sal; |
1c8cdcb1 | 9698 | CORE_ADDR pc; |
cc59ec59 | 9699 | |
4a64f543 | 9700 | init_sal (&sal); /* Initialize to zeroes. */ |
f8eba3c6 | 9701 | lsal.sals.sals = (struct symtab_and_line *) |
c906108c | 9702 | xmalloc (sizeof (struct symtab_and_line)); |
1bfeeb0f JL |
9703 | |
9704 | /* Set sal's pspace, pc, symtab, and line to the values | |
1c8cdcb1 JK |
9705 | corresponding to the last call to print_frame_info. |
9706 | Be sure to reinitialize LINE with NOTCURRENT == 0 | |
9707 | as the breakpoint line number is inappropriate otherwise. | |
9708 | find_pc_line would adjust PC, re-set it back. */ | |
1bfeeb0f | 9709 | get_last_displayed_sal (&sal); |
1c8cdcb1 JK |
9710 | pc = sal.pc; |
9711 | sal = find_pc_line (pc, 0); | |
00903456 | 9712 | |
4a64f543 | 9713 | /* "break" without arguments is equivalent to "break *PC" |
1bfeeb0f JL |
9714 | where PC is the last displayed codepoint's address. So |
9715 | make sure to set sal.explicit_pc to prevent GDB from | |
9716 | trying to expand the list of sals to include all other | |
9717 | instances with the same symtab and line. */ | |
1c8cdcb1 | 9718 | sal.pc = pc; |
00903456 JK |
9719 | sal.explicit_pc = 1; |
9720 | ||
f8eba3c6 TT |
9721 | lsal.sals.sals[0] = sal; |
9722 | lsal.sals.nelts = 1; | |
9723 | lsal.canonical = NULL; | |
9724 | ||
9725 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
c906108c SS |
9726 | } |
9727 | else | |
8a3fe4f8 | 9728 | error (_("No default breakpoint address now.")); |
c906108c SS |
9729 | } |
9730 | else | |
9731 | { | |
cc80f267 JK |
9732 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); |
9733 | ||
c906108c | 9734 | /* Force almost all breakpoints to be in terms of the |
4a64f543 MS |
9735 | current_source_symtab (which is decode_line_1's default). |
9736 | This should produce the results we want almost all of the | |
cc80f267 JK |
9737 | time while leaving default_breakpoint_* alone. |
9738 | ||
9739 | ObjC: However, don't match an Objective-C method name which | |
9740 | may have a '+' or '-' succeeded by a '['. */ | |
9741 | if (last_displayed_sal_is_valid () | |
9742 | && (!cursal.symtab | |
9743 | || ((strchr ("+-", (*address)[0]) != NULL) | |
9744 | && ((*address)[1] != '[')))) | |
f8eba3c6 TT |
9745 | decode_line_full (address, DECODE_LINE_FUNFIRSTLINE, |
9746 | get_last_displayed_symtab (), | |
9747 | get_last_displayed_line (), | |
9748 | canonical, NULL, NULL); | |
c906108c | 9749 | else |
f8eba3c6 | 9750 | decode_line_full (address, DECODE_LINE_FUNFIRSTLINE, |
cc80f267 | 9751 | cursal.symtab, cursal.line, canonical, NULL, NULL); |
c906108c | 9752 | } |
c3f6f71d | 9753 | } |
c906108c | 9754 | |
c906108c | 9755 | |
c3f6f71d | 9756 | /* Convert each SAL into a real PC. Verify that the PC can be |
4a64f543 | 9757 | inserted as a breakpoint. If it can't throw an error. */ |
c906108c | 9758 | |
b9362cc7 | 9759 | static void |
23e7acfb | 9760 | breakpoint_sals_to_pc (struct symtabs_and_lines *sals) |
c3f6f71d JM |
9761 | { |
9762 | int i; | |
cc59ec59 | 9763 | |
c3f6f71d | 9764 | for (i = 0; i < sals->nelts; i++) |
ee53e872 | 9765 | resolve_sal_pc (&sals->sals[i]); |
c3f6f71d JM |
9766 | } |
9767 | ||
7a697b8d SS |
9768 | /* Fast tracepoints may have restrictions on valid locations. For |
9769 | instance, a fast tracepoint using a jump instead of a trap will | |
9770 | likely have to overwrite more bytes than a trap would, and so can | |
9771 | only be placed where the instruction is longer than the jump, or a | |
9772 | multi-instruction sequence does not have a jump into the middle of | |
9773 | it, etc. */ | |
9774 | ||
9775 | static void | |
9776 | check_fast_tracepoint_sals (struct gdbarch *gdbarch, | |
9777 | struct symtabs_and_lines *sals) | |
9778 | { | |
9779 | int i, rslt; | |
9780 | struct symtab_and_line *sal; | |
9781 | char *msg; | |
9782 | struct cleanup *old_chain; | |
9783 | ||
9784 | for (i = 0; i < sals->nelts; i++) | |
9785 | { | |
f8eba3c6 TT |
9786 | struct gdbarch *sarch; |
9787 | ||
7a697b8d SS |
9788 | sal = &sals->sals[i]; |
9789 | ||
f8eba3c6 TT |
9790 | sarch = get_sal_arch (*sal); |
9791 | /* We fall back to GDBARCH if there is no architecture | |
9792 | associated with SAL. */ | |
9793 | if (sarch == NULL) | |
9794 | sarch = gdbarch; | |
9795 | rslt = gdbarch_fast_tracepoint_valid_at (sarch, sal->pc, | |
7a697b8d SS |
9796 | NULL, &msg); |
9797 | old_chain = make_cleanup (xfree, msg); | |
9798 | ||
9799 | if (!rslt) | |
9800 | error (_("May not have a fast tracepoint at 0x%s%s"), | |
f8eba3c6 | 9801 | paddress (sarch, sal->pc), (msg ? msg : "")); |
7a697b8d SS |
9802 | |
9803 | do_cleanups (old_chain); | |
9804 | } | |
9805 | } | |
9806 | ||
af4908ba KS |
9807 | /* Issue an invalid thread ID error. */ |
9808 | ||
9809 | static void ATTRIBUTE_NORETURN | |
9810 | invalid_thread_id_error (int id) | |
9811 | { | |
9812 | error (_("Unknown thread %d."), id); | |
9813 | } | |
9814 | ||
018d34a4 VP |
9815 | /* Given TOK, a string specification of condition and thread, as |
9816 | accepted by the 'break' command, extract the condition | |
9817 | string and thread number and set *COND_STRING and *THREAD. | |
4a64f543 | 9818 | PC identifies the context at which the condition should be parsed. |
018d34a4 VP |
9819 | If no condition is found, *COND_STRING is set to NULL. |
9820 | If no thread is found, *THREAD is set to -1. */ | |
d634f2de JB |
9821 | |
9822 | static void | |
bbc13ae3 | 9823 | find_condition_and_thread (const char *tok, CORE_ADDR pc, |
e7e0cddf SS |
9824 | char **cond_string, int *thread, int *task, |
9825 | char **rest) | |
018d34a4 VP |
9826 | { |
9827 | *cond_string = NULL; | |
9828 | *thread = -1; | |
ed1d1739 KS |
9829 | *task = 0; |
9830 | *rest = NULL; | |
9831 | ||
018d34a4 VP |
9832 | while (tok && *tok) |
9833 | { | |
bbc13ae3 | 9834 | const char *end_tok; |
018d34a4 | 9835 | int toklen; |
bbc13ae3 KS |
9836 | const char *cond_start = NULL; |
9837 | const char *cond_end = NULL; | |
cc59ec59 | 9838 | |
bbc13ae3 | 9839 | tok = skip_spaces_const (tok); |
e7e0cddf SS |
9840 | |
9841 | if ((*tok == '"' || *tok == ',') && rest) | |
9842 | { | |
9843 | *rest = savestring (tok, strlen (tok)); | |
9844 | return; | |
9845 | } | |
9846 | ||
bbc13ae3 | 9847 | end_tok = skip_to_space_const (tok); |
d634f2de | 9848 | |
018d34a4 | 9849 | toklen = end_tok - tok; |
d634f2de | 9850 | |
018d34a4 VP |
9851 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) |
9852 | { | |
f7545552 TT |
9853 | struct expression *expr; |
9854 | ||
018d34a4 | 9855 | tok = cond_start = end_tok + 1; |
1bb9788d | 9856 | expr = parse_exp_1 (&tok, pc, block_for_pc (pc), 0); |
f7545552 | 9857 | xfree (expr); |
018d34a4 | 9858 | cond_end = tok; |
d634f2de | 9859 | *cond_string = savestring (cond_start, cond_end - cond_start); |
018d34a4 VP |
9860 | } |
9861 | else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0) | |
9862 | { | |
9863 | char *tmptok; | |
d634f2de | 9864 | |
018d34a4 | 9865 | tok = end_tok + 1; |
bbc13ae3 | 9866 | *thread = strtol (tok, &tmptok, 0); |
018d34a4 VP |
9867 | if (tok == tmptok) |
9868 | error (_("Junk after thread keyword.")); | |
9869 | if (!valid_thread_id (*thread)) | |
af4908ba | 9870 | invalid_thread_id_error (*thread); |
bbc13ae3 | 9871 | tok = tmptok; |
018d34a4 | 9872 | } |
4a306c9a JB |
9873 | else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0) |
9874 | { | |
9875 | char *tmptok; | |
9876 | ||
9877 | tok = end_tok + 1; | |
bbc13ae3 | 9878 | *task = strtol (tok, &tmptok, 0); |
4a306c9a JB |
9879 | if (tok == tmptok) |
9880 | error (_("Junk after task keyword.")); | |
9881 | if (!valid_task_id (*task)) | |
b6199126 | 9882 | error (_("Unknown task %d."), *task); |
bbc13ae3 | 9883 | tok = tmptok; |
4a306c9a | 9884 | } |
e7e0cddf SS |
9885 | else if (rest) |
9886 | { | |
9887 | *rest = savestring (tok, strlen (tok)); | |
ccab2054 | 9888 | return; |
e7e0cddf | 9889 | } |
018d34a4 VP |
9890 | else |
9891 | error (_("Junk at end of arguments.")); | |
9892 | } | |
9893 | } | |
9894 | ||
0fb4aa4b PA |
9895 | /* Decode a static tracepoint marker spec. */ |
9896 | ||
9897 | static struct symtabs_and_lines | |
9898 | decode_static_tracepoint_spec (char **arg_p) | |
9899 | { | |
9900 | VEC(static_tracepoint_marker_p) *markers = NULL; | |
9901 | struct symtabs_and_lines sals; | |
0fb4aa4b PA |
9902 | struct cleanup *old_chain; |
9903 | char *p = &(*arg_p)[3]; | |
9904 | char *endp; | |
9905 | char *marker_str; | |
9906 | int i; | |
9907 | ||
e9cafbcc | 9908 | p = skip_spaces (p); |
0fb4aa4b | 9909 | |
e9cafbcc | 9910 | endp = skip_to_space (p); |
0fb4aa4b PA |
9911 | |
9912 | marker_str = savestring (p, endp - p); | |
9913 | old_chain = make_cleanup (xfree, marker_str); | |
9914 | ||
9915 | markers = target_static_tracepoint_markers_by_strid (marker_str); | |
9916 | if (VEC_empty(static_tracepoint_marker_p, markers)) | |
9917 | error (_("No known static tracepoint marker named %s"), marker_str); | |
9918 | ||
9919 | sals.nelts = VEC_length(static_tracepoint_marker_p, markers); | |
9920 | sals.sals = xmalloc (sizeof *sals.sals * sals.nelts); | |
9921 | ||
9922 | for (i = 0; i < sals.nelts; i++) | |
9923 | { | |
9924 | struct static_tracepoint_marker *marker; | |
9925 | ||
9926 | marker = VEC_index (static_tracepoint_marker_p, markers, i); | |
9927 | ||
9928 | init_sal (&sals.sals[i]); | |
9929 | ||
9930 | sals.sals[i] = find_pc_line (marker->address, 0); | |
9931 | sals.sals[i].pc = marker->address; | |
9932 | ||
9933 | release_static_tracepoint_marker (marker); | |
9934 | } | |
9935 | ||
9936 | do_cleanups (old_chain); | |
9937 | ||
9938 | *arg_p = endp; | |
9939 | return sals; | |
9940 | } | |
9941 | ||
fd9b8c24 PA |
9942 | /* Set a breakpoint. This function is shared between CLI and MI |
9943 | functions for setting a breakpoint. This function has two major | |
f6de8ec2 PA |
9944 | modes of operations, selected by the PARSE_ARG parameter. If |
9945 | non-zero, the function will parse ARG, extracting location, | |
9946 | condition, thread and extra string. Otherwise, ARG is just the | |
9947 | breakpoint's location, with condition, thread, and extra string | |
9948 | specified by the COND_STRING, THREAD and EXTRA_STRING parameters. | |
9949 | If INTERNAL is non-zero, the breakpoint number will be allocated | |
9950 | from the internal breakpoint count. Returns true if any breakpoint | |
9951 | was created; false otherwise. */ | |
0101ce28 | 9952 | |
8cdf0e15 VP |
9953 | int |
9954 | create_breakpoint (struct gdbarch *gdbarch, | |
e7e0cddf SS |
9955 | char *arg, char *cond_string, |
9956 | int thread, char *extra_string, | |
f6de8ec2 | 9957 | int parse_arg, |
0fb4aa4b | 9958 | int tempflag, enum bptype type_wanted, |
8cdf0e15 VP |
9959 | int ignore_count, |
9960 | enum auto_boolean pending_break_support, | |
c0a91b2b | 9961 | const struct breakpoint_ops *ops, |
44f238bb PA |
9962 | int from_tty, int enabled, int internal, |
9963 | unsigned flags) | |
c3f6f71d | 9964 | { |
b78a6381 | 9965 | volatile struct gdb_exception e; |
f8eba3c6 | 9966 | char *copy_arg = NULL; |
c3f6f71d | 9967 | char *addr_start = arg; |
7efd8fc2 | 9968 | struct linespec_result canonical; |
c3f6f71d | 9969 | struct cleanup *old_chain; |
80c99de1 | 9970 | struct cleanup *bkpt_chain = NULL; |
0101ce28 | 9971 | int pending = 0; |
4a306c9a | 9972 | int task = 0; |
86b17b60 | 9973 | int prev_bkpt_count = breakpoint_count; |
c3f6f71d | 9974 | |
348d480f PA |
9975 | gdb_assert (ops != NULL); |
9976 | ||
7efd8fc2 | 9977 | init_linespec_result (&canonical); |
c3f6f71d | 9978 | |
b78a6381 TT |
9979 | TRY_CATCH (e, RETURN_MASK_ALL) |
9980 | { | |
983af33b SDJ |
9981 | ops->create_sals_from_address (&arg, &canonical, type_wanted, |
9982 | addr_start, ©_arg); | |
b78a6381 | 9983 | } |
0101ce28 JJ |
9984 | |
9985 | /* If caller is interested in rc value from parse, set value. */ | |
05ff989b | 9986 | switch (e.reason) |
0101ce28 | 9987 | { |
983af33b SDJ |
9988 | case GDB_NO_ERROR: |
9989 | if (VEC_empty (linespec_sals, canonical.sals)) | |
9990 | return 0; | |
9991 | break; | |
05ff989b AC |
9992 | case RETURN_ERROR: |
9993 | switch (e.error) | |
0101ce28 | 9994 | { |
05ff989b | 9995 | case NOT_FOUND_ERROR: |
0101ce28 | 9996 | |
05ff989b AC |
9997 | /* If pending breakpoint support is turned off, throw |
9998 | error. */ | |
fa8d40ab JJ |
9999 | |
10000 | if (pending_break_support == AUTO_BOOLEAN_FALSE) | |
723a2275 VP |
10001 | throw_exception (e); |
10002 | ||
10003 | exception_print (gdb_stderr, e); | |
fa8d40ab | 10004 | |
05ff989b AC |
10005 | /* If pending breakpoint support is auto query and the user |
10006 | selects no, then simply return the error code. */ | |
059fb39f | 10007 | if (pending_break_support == AUTO_BOOLEAN_AUTO |
bfccc43c YQ |
10008 | && !nquery (_("Make %s pending on future shared library load? "), |
10009 | bptype_string (type_wanted))) | |
fd9b8c24 | 10010 | return 0; |
fa8d40ab | 10011 | |
05ff989b AC |
10012 | /* At this point, either the user was queried about setting |
10013 | a pending breakpoint and selected yes, or pending | |
10014 | breakpoint behavior is on and thus a pending breakpoint | |
10015 | is defaulted on behalf of the user. */ | |
f8eba3c6 TT |
10016 | { |
10017 | struct linespec_sals lsal; | |
10018 | ||
10019 | copy_arg = xstrdup (addr_start); | |
10020 | lsal.canonical = xstrdup (copy_arg); | |
10021 | lsal.sals.nelts = 1; | |
10022 | lsal.sals.sals = XNEW (struct symtab_and_line); | |
10023 | init_sal (&lsal.sals.sals[0]); | |
10024 | pending = 1; | |
10025 | VEC_safe_push (linespec_sals, canonical.sals, &lsal); | |
10026 | } | |
05ff989b AC |
10027 | break; |
10028 | default: | |
98deb0da | 10029 | throw_exception (e); |
0101ce28 | 10030 | } |
2abae994 | 10031 | break; |
05ff989b | 10032 | default: |
983af33b | 10033 | throw_exception (e); |
0101ce28 | 10034 | } |
c3f6f71d | 10035 | |
4a64f543 | 10036 | /* Create a chain of things that always need to be cleaned up. */ |
f8eba3c6 | 10037 | old_chain = make_cleanup_destroy_linespec_result (&canonical); |
c3f6f71d | 10038 | |
c3f6f71d JM |
10039 | /* ----------------------------- SNIP ----------------------------- |
10040 | Anything added to the cleanup chain beyond this point is assumed | |
10041 | to be part of a breakpoint. If the breakpoint create succeeds | |
80c99de1 PA |
10042 | then the memory is not reclaimed. */ |
10043 | bkpt_chain = make_cleanup (null_cleanup, 0); | |
c3f6f71d | 10044 | |
c3f6f71d JM |
10045 | /* Resolve all line numbers to PC's and verify that the addresses |
10046 | are ok for the target. */ | |
0101ce28 | 10047 | if (!pending) |
f8eba3c6 TT |
10048 | { |
10049 | int ix; | |
10050 | struct linespec_sals *iter; | |
10051 | ||
10052 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
10053 | breakpoint_sals_to_pc (&iter->sals); | |
10054 | } | |
c3f6f71d | 10055 | |
7a697b8d | 10056 | /* Fast tracepoints may have additional restrictions on location. */ |
bfccc43c | 10057 | if (!pending && type_wanted == bp_fast_tracepoint) |
f8eba3c6 TT |
10058 | { |
10059 | int ix; | |
10060 | struct linespec_sals *iter; | |
10061 | ||
10062 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
10063 | check_fast_tracepoint_sals (gdbarch, &iter->sals); | |
10064 | } | |
7a697b8d | 10065 | |
c3f6f71d JM |
10066 | /* Verify that condition can be parsed, before setting any |
10067 | breakpoints. Allocate a separate condition expression for each | |
4a64f543 | 10068 | breakpoint. */ |
0101ce28 | 10069 | if (!pending) |
c3f6f71d | 10070 | { |
f6de8ec2 | 10071 | if (parse_arg) |
72b2ff0e | 10072 | { |
0878d0fa | 10073 | char *rest; |
52d361e1 YQ |
10074 | struct linespec_sals *lsal; |
10075 | ||
10076 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
10077 | ||
0878d0fa YQ |
10078 | /* Here we only parse 'arg' to separate condition |
10079 | from thread number, so parsing in context of first | |
10080 | sal is OK. When setting the breakpoint we'll | |
10081 | re-parse it in context of each sal. */ | |
10082 | ||
10083 | find_condition_and_thread (arg, lsal->sals.sals[0].pc, &cond_string, | |
10084 | &thread, &task, &rest); | |
10085 | if (cond_string) | |
10086 | make_cleanup (xfree, cond_string); | |
10087 | if (rest) | |
10088 | make_cleanup (xfree, rest); | |
10089 | if (rest) | |
10090 | extra_string = rest; | |
72b2ff0e | 10091 | } |
2f069f6f | 10092 | else |
72b2ff0e | 10093 | { |
0878d0fa YQ |
10094 | if (*arg != '\0') |
10095 | error (_("Garbage '%s' at end of location"), arg); | |
10096 | ||
10097 | /* Create a private copy of condition string. */ | |
10098 | if (cond_string) | |
10099 | { | |
10100 | cond_string = xstrdup (cond_string); | |
10101 | make_cleanup (xfree, cond_string); | |
10102 | } | |
10103 | /* Create a private copy of any extra string. */ | |
10104 | if (extra_string) | |
10105 | { | |
10106 | extra_string = xstrdup (extra_string); | |
10107 | make_cleanup (xfree, extra_string); | |
10108 | } | |
72b2ff0e | 10109 | } |
0fb4aa4b | 10110 | |
52d361e1 | 10111 | ops->create_breakpoints_sal (gdbarch, &canonical, |
e7e0cddf | 10112 | cond_string, extra_string, type_wanted, |
d9b3f62e PA |
10113 | tempflag ? disp_del : disp_donttouch, |
10114 | thread, task, ignore_count, ops, | |
44f238bb | 10115 | from_tty, enabled, internal, flags); |
c906108c | 10116 | } |
0101ce28 JJ |
10117 | else |
10118 | { | |
0101ce28 JJ |
10119 | struct breakpoint *b; |
10120 | ||
0101ce28 JJ |
10121 | make_cleanup (xfree, copy_arg); |
10122 | ||
bfccc43c YQ |
10123 | if (is_tracepoint_type (type_wanted)) |
10124 | { | |
10125 | struct tracepoint *t; | |
10126 | ||
10127 | t = XCNEW (struct tracepoint); | |
10128 | b = &t->base; | |
10129 | } | |
10130 | else | |
10131 | b = XNEW (struct breakpoint); | |
10132 | ||
10133 | init_raw_breakpoint_without_location (b, gdbarch, type_wanted, ops); | |
10134 | ||
f8eba3c6 | 10135 | b->addr_string = copy_arg; |
f6de8ec2 | 10136 | if (parse_arg) |
e12c7713 MK |
10137 | b->cond_string = NULL; |
10138 | else | |
10139 | { | |
10140 | /* Create a private copy of condition string. */ | |
10141 | if (cond_string) | |
10142 | { | |
10143 | cond_string = xstrdup (cond_string); | |
10144 | make_cleanup (xfree, cond_string); | |
10145 | } | |
10146 | b->cond_string = cond_string; | |
10147 | } | |
e7e0cddf | 10148 | b->extra_string = NULL; |
0101ce28 | 10149 | b->ignore_count = ignore_count; |
0101ce28 | 10150 | b->disposition = tempflag ? disp_del : disp_donttouch; |
0d381245 | 10151 | b->condition_not_parsed = 1; |
41447f92 | 10152 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
cc72b2a2 KP |
10153 | if ((type_wanted != bp_breakpoint |
10154 | && type_wanted != bp_hardware_breakpoint) || thread != -1) | |
f8eba3c6 | 10155 | b->pspace = current_program_space; |
8bea4e01 | 10156 | |
bfccc43c | 10157 | install_breakpoint (internal, b, 0); |
0101ce28 JJ |
10158 | } |
10159 | ||
f8eba3c6 | 10160 | if (VEC_length (linespec_sals, canonical.sals) > 1) |
95a42b64 | 10161 | { |
3e43a32a MS |
10162 | warning (_("Multiple breakpoints were set.\nUse the " |
10163 | "\"delete\" command to delete unwanted breakpoints.")); | |
86b17b60 | 10164 | prev_breakpoint_count = prev_bkpt_count; |
95a42b64 TT |
10165 | } |
10166 | ||
80c99de1 PA |
10167 | /* That's it. Discard the cleanups for data inserted into the |
10168 | breakpoint. */ | |
10169 | discard_cleanups (bkpt_chain); | |
10170 | /* But cleanup everything else. */ | |
c3f6f71d | 10171 | do_cleanups (old_chain); |
217dc9e2 | 10172 | |
80c99de1 | 10173 | /* error call may happen here - have BKPT_CHAIN already discarded. */ |
44702360 | 10174 | update_global_location_list (UGLL_MAY_INSERT); |
fd9b8c24 PA |
10175 | |
10176 | return 1; | |
c3f6f71d | 10177 | } |
c906108c | 10178 | |
348d480f | 10179 | /* Set a breakpoint. |
72b2ff0e VP |
10180 | ARG is a string describing breakpoint address, |
10181 | condition, and thread. | |
10182 | FLAG specifies if a breakpoint is hardware on, | |
10183 | and if breakpoint is temporary, using BP_HARDWARE_FLAG | |
10184 | and BP_TEMPFLAG. */ | |
348d480f | 10185 | |
98deb0da | 10186 | static void |
72b2ff0e | 10187 | break_command_1 (char *arg, int flag, int from_tty) |
c3f6f71d | 10188 | { |
72b2ff0e | 10189 | int tempflag = flag & BP_TEMPFLAG; |
0fb4aa4b PA |
10190 | enum bptype type_wanted = (flag & BP_HARDWAREFLAG |
10191 | ? bp_hardware_breakpoint | |
10192 | : bp_breakpoint); | |
55aa24fb SDJ |
10193 | struct breakpoint_ops *ops; |
10194 | const char *arg_cp = arg; | |
10195 | ||
10196 | /* Matching breakpoints on probes. */ | |
10197 | if (arg && probe_linespec_to_ops (&arg_cp) != NULL) | |
10198 | ops = &bkpt_probe_breakpoint_ops; | |
10199 | else | |
10200 | ops = &bkpt_breakpoint_ops; | |
c3f6f71d | 10201 | |
8cdf0e15 VP |
10202 | create_breakpoint (get_current_arch (), |
10203 | arg, | |
e7e0cddf | 10204 | NULL, 0, NULL, 1 /* parse arg */, |
0fb4aa4b | 10205 | tempflag, type_wanted, |
8cdf0e15 VP |
10206 | 0 /* Ignore count */, |
10207 | pending_break_support, | |
55aa24fb | 10208 | ops, |
8cdf0e15 | 10209 | from_tty, |
84f4c1fe | 10210 | 1 /* enabled */, |
44f238bb PA |
10211 | 0 /* internal */, |
10212 | 0); | |
c906108c SS |
10213 | } |
10214 | ||
c906108c SS |
10215 | /* Helper function for break_command_1 and disassemble_command. */ |
10216 | ||
10217 | void | |
fba45db2 | 10218 | resolve_sal_pc (struct symtab_and_line *sal) |
c906108c SS |
10219 | { |
10220 | CORE_ADDR pc; | |
10221 | ||
10222 | if (sal->pc == 0 && sal->symtab != NULL) | |
10223 | { | |
10224 | if (!find_line_pc (sal->symtab, sal->line, &pc)) | |
8a3fe4f8 | 10225 | error (_("No line %d in file \"%s\"."), |
05cba821 | 10226 | sal->line, symtab_to_filename_for_display (sal->symtab)); |
c906108c | 10227 | sal->pc = pc; |
6a048695 | 10228 | |
4a64f543 MS |
10229 | /* If this SAL corresponds to a breakpoint inserted using a line |
10230 | number, then skip the function prologue if necessary. */ | |
6a048695 | 10231 | if (sal->explicit_line) |
059acae7 | 10232 | skip_prologue_sal (sal); |
c906108c SS |
10233 | } |
10234 | ||
10235 | if (sal->section == 0 && sal->symtab != NULL) | |
10236 | { | |
346d1dfe | 10237 | const struct blockvector *bv; |
3977b71f | 10238 | const struct block *b; |
c5aa993b | 10239 | struct symbol *sym; |
c906108c | 10240 | |
801e3a5b | 10241 | bv = blockvector_for_pc_sect (sal->pc, 0, &b, sal->symtab); |
c906108c SS |
10242 | if (bv != NULL) |
10243 | { | |
7f0df278 | 10244 | sym = block_linkage_function (b); |
c906108c SS |
10245 | if (sym != NULL) |
10246 | { | |
10247 | fixup_symbol_section (sym, sal->symtab->objfile); | |
e27d198c | 10248 | sal->section = SYMBOL_OBJ_SECTION (sal->symtab->objfile, sym); |
c906108c SS |
10249 | } |
10250 | else | |
10251 | { | |
4a64f543 MS |
10252 | /* It really is worthwhile to have the section, so we'll |
10253 | just have to look harder. This case can be executed | |
10254 | if we have line numbers but no functions (as can | |
10255 | happen in assembly source). */ | |
c906108c | 10256 | |
7cbd4a93 | 10257 | struct bound_minimal_symbol msym; |
6c95b8df PA |
10258 | struct cleanup *old_chain = save_current_space_and_thread (); |
10259 | ||
10260 | switch_to_program_space_and_thread (sal->pspace); | |
c906108c SS |
10261 | |
10262 | msym = lookup_minimal_symbol_by_pc (sal->pc); | |
7cbd4a93 | 10263 | if (msym.minsym) |
efd66ac6 | 10264 | sal->section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym); |
6c95b8df PA |
10265 | |
10266 | do_cleanups (old_chain); | |
c906108c SS |
10267 | } |
10268 | } | |
10269 | } | |
10270 | } | |
10271 | ||
10272 | void | |
fba45db2 | 10273 | break_command (char *arg, int from_tty) |
c906108c | 10274 | { |
db107f19 | 10275 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10276 | } |
10277 | ||
c906108c | 10278 | void |
fba45db2 | 10279 | tbreak_command (char *arg, int from_tty) |
c906108c | 10280 | { |
db107f19 | 10281 | break_command_1 (arg, BP_TEMPFLAG, from_tty); |
c906108c SS |
10282 | } |
10283 | ||
c906108c | 10284 | static void |
fba45db2 | 10285 | hbreak_command (char *arg, int from_tty) |
c906108c | 10286 | { |
db107f19 | 10287 | break_command_1 (arg, BP_HARDWAREFLAG, from_tty); |
c906108c SS |
10288 | } |
10289 | ||
10290 | static void | |
fba45db2 | 10291 | thbreak_command (char *arg, int from_tty) |
c906108c | 10292 | { |
db107f19 | 10293 | break_command_1 (arg, (BP_TEMPFLAG | BP_HARDWAREFLAG), from_tty); |
c906108c SS |
10294 | } |
10295 | ||
10296 | static void | |
fba45db2 | 10297 | stop_command (char *arg, int from_tty) |
c906108c | 10298 | { |
a3f17187 | 10299 | printf_filtered (_("Specify the type of breakpoint to set.\n\ |
c906108c | 10300 | Usage: stop in <function | address>\n\ |
a3f17187 | 10301 | stop at <line>\n")); |
c906108c SS |
10302 | } |
10303 | ||
10304 | static void | |
fba45db2 | 10305 | stopin_command (char *arg, int from_tty) |
c906108c SS |
10306 | { |
10307 | int badInput = 0; | |
10308 | ||
c5aa993b | 10309 | if (arg == (char *) NULL) |
c906108c SS |
10310 | badInput = 1; |
10311 | else if (*arg != '*') | |
10312 | { | |
10313 | char *argptr = arg; | |
10314 | int hasColon = 0; | |
10315 | ||
4a64f543 | 10316 | /* Look for a ':'. If this is a line number specification, then |
53a5351d | 10317 | say it is bad, otherwise, it should be an address or |
4a64f543 | 10318 | function/method name. */ |
c906108c | 10319 | while (*argptr && !hasColon) |
c5aa993b JM |
10320 | { |
10321 | hasColon = (*argptr == ':'); | |
10322 | argptr++; | |
10323 | } | |
c906108c SS |
10324 | |
10325 | if (hasColon) | |
c5aa993b | 10326 | badInput = (*argptr != ':'); /* Not a class::method */ |
c906108c | 10327 | else |
c5aa993b | 10328 | badInput = isdigit (*arg); /* a simple line number */ |
c906108c SS |
10329 | } |
10330 | ||
10331 | if (badInput) | |
a3f17187 | 10332 | printf_filtered (_("Usage: stop in <function | address>\n")); |
c906108c | 10333 | else |
db107f19 | 10334 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10335 | } |
10336 | ||
10337 | static void | |
fba45db2 | 10338 | stopat_command (char *arg, int from_tty) |
c906108c SS |
10339 | { |
10340 | int badInput = 0; | |
10341 | ||
c5aa993b | 10342 | if (arg == (char *) NULL || *arg == '*') /* no line number */ |
c906108c SS |
10343 | badInput = 1; |
10344 | else | |
10345 | { | |
10346 | char *argptr = arg; | |
10347 | int hasColon = 0; | |
10348 | ||
4a64f543 MS |
10349 | /* Look for a ':'. If there is a '::' then get out, otherwise |
10350 | it is probably a line number. */ | |
c906108c | 10351 | while (*argptr && !hasColon) |
c5aa993b JM |
10352 | { |
10353 | hasColon = (*argptr == ':'); | |
10354 | argptr++; | |
10355 | } | |
c906108c SS |
10356 | |
10357 | if (hasColon) | |
c5aa993b | 10358 | badInput = (*argptr == ':'); /* we have class::method */ |
c906108c | 10359 | else |
c5aa993b | 10360 | badInput = !isdigit (*arg); /* not a line number */ |
c906108c SS |
10361 | } |
10362 | ||
10363 | if (badInput) | |
a3f17187 | 10364 | printf_filtered (_("Usage: stop at <line>\n")); |
c906108c | 10365 | else |
db107f19 | 10366 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10367 | } |
10368 | ||
e7e0cddf SS |
10369 | /* The dynamic printf command is mostly like a regular breakpoint, but |
10370 | with a prewired command list consisting of a single output command, | |
10371 | built from extra arguments supplied on the dprintf command | |
10372 | line. */ | |
10373 | ||
da821c7b | 10374 | static void |
e7e0cddf SS |
10375 | dprintf_command (char *arg, int from_tty) |
10376 | { | |
10377 | create_breakpoint (get_current_arch (), | |
10378 | arg, | |
10379 | NULL, 0, NULL, 1 /* parse arg */, | |
10380 | 0, bp_dprintf, | |
10381 | 0 /* Ignore count */, | |
10382 | pending_break_support, | |
10383 | &dprintf_breakpoint_ops, | |
10384 | from_tty, | |
10385 | 1 /* enabled */, | |
10386 | 0 /* internal */, | |
10387 | 0); | |
10388 | } | |
10389 | ||
d3ce09f5 SS |
10390 | static void |
10391 | agent_printf_command (char *arg, int from_tty) | |
10392 | { | |
10393 | error (_("May only run agent-printf on the target")); | |
10394 | } | |
10395 | ||
f1310107 TJB |
10396 | /* Implement the "breakpoint_hit" breakpoint_ops method for |
10397 | ranged breakpoints. */ | |
10398 | ||
10399 | static int | |
10400 | breakpoint_hit_ranged_breakpoint (const struct bp_location *bl, | |
10401 | struct address_space *aspace, | |
09ac7c10 TT |
10402 | CORE_ADDR bp_addr, |
10403 | const struct target_waitstatus *ws) | |
f1310107 | 10404 | { |
09ac7c10 | 10405 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 10406 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
10407 | return 0; |
10408 | ||
f1310107 TJB |
10409 | return breakpoint_address_match_range (bl->pspace->aspace, bl->address, |
10410 | bl->length, aspace, bp_addr); | |
10411 | } | |
10412 | ||
10413 | /* Implement the "resources_needed" breakpoint_ops method for | |
10414 | ranged breakpoints. */ | |
10415 | ||
10416 | static int | |
10417 | resources_needed_ranged_breakpoint (const struct bp_location *bl) | |
10418 | { | |
10419 | return target_ranged_break_num_registers (); | |
10420 | } | |
10421 | ||
10422 | /* Implement the "print_it" breakpoint_ops method for | |
10423 | ranged breakpoints. */ | |
10424 | ||
10425 | static enum print_stop_action | |
348d480f | 10426 | print_it_ranged_breakpoint (bpstat bs) |
f1310107 | 10427 | { |
348d480f | 10428 | struct breakpoint *b = bs->breakpoint_at; |
f1310107 | 10429 | struct bp_location *bl = b->loc; |
79a45e25 | 10430 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10431 | |
10432 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10433 | ||
10434 | /* Ranged breakpoints have only one location. */ | |
10435 | gdb_assert (bl && bl->next == NULL); | |
10436 | ||
10437 | annotate_breakpoint (b->number); | |
10438 | if (b->disposition == disp_del) | |
10439 | ui_out_text (uiout, "\nTemporary ranged breakpoint "); | |
10440 | else | |
10441 | ui_out_text (uiout, "\nRanged breakpoint "); | |
10442 | if (ui_out_is_mi_like_p (uiout)) | |
10443 | { | |
10444 | ui_out_field_string (uiout, "reason", | |
10445 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
10446 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
10447 | } | |
10448 | ui_out_field_int (uiout, "bkptno", b->number); | |
10449 | ui_out_text (uiout, ", "); | |
10450 | ||
10451 | return PRINT_SRC_AND_LOC; | |
10452 | } | |
10453 | ||
10454 | /* Implement the "print_one" breakpoint_ops method for | |
10455 | ranged breakpoints. */ | |
10456 | ||
10457 | static void | |
10458 | print_one_ranged_breakpoint (struct breakpoint *b, | |
10459 | struct bp_location **last_loc) | |
10460 | { | |
10461 | struct bp_location *bl = b->loc; | |
10462 | struct value_print_options opts; | |
79a45e25 | 10463 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10464 | |
10465 | /* Ranged breakpoints have only one location. */ | |
10466 | gdb_assert (bl && bl->next == NULL); | |
10467 | ||
10468 | get_user_print_options (&opts); | |
10469 | ||
10470 | if (opts.addressprint) | |
10471 | /* We don't print the address range here, it will be printed later | |
10472 | by print_one_detail_ranged_breakpoint. */ | |
10473 | ui_out_field_skip (uiout, "addr"); | |
10474 | annotate_field (5); | |
10475 | print_breakpoint_location (b, bl); | |
10476 | *last_loc = bl; | |
10477 | } | |
10478 | ||
10479 | /* Implement the "print_one_detail" breakpoint_ops method for | |
10480 | ranged breakpoints. */ | |
10481 | ||
10482 | static void | |
10483 | print_one_detail_ranged_breakpoint (const struct breakpoint *b, | |
10484 | struct ui_out *uiout) | |
10485 | { | |
10486 | CORE_ADDR address_start, address_end; | |
10487 | struct bp_location *bl = b->loc; | |
f99d8bf4 PA |
10488 | struct ui_file *stb = mem_fileopen (); |
10489 | struct cleanup *cleanup = make_cleanup_ui_file_delete (stb); | |
f1310107 TJB |
10490 | |
10491 | gdb_assert (bl); | |
10492 | ||
10493 | address_start = bl->address; | |
10494 | address_end = address_start + bl->length - 1; | |
10495 | ||
10496 | ui_out_text (uiout, "\taddress range: "); | |
f99d8bf4 | 10497 | fprintf_unfiltered (stb, "[%s, %s]", |
f1310107 TJB |
10498 | print_core_address (bl->gdbarch, address_start), |
10499 | print_core_address (bl->gdbarch, address_end)); | |
10500 | ui_out_field_stream (uiout, "addr", stb); | |
10501 | ui_out_text (uiout, "\n"); | |
10502 | ||
10503 | do_cleanups (cleanup); | |
10504 | } | |
10505 | ||
10506 | /* Implement the "print_mention" breakpoint_ops method for | |
10507 | ranged breakpoints. */ | |
10508 | ||
10509 | static void | |
10510 | print_mention_ranged_breakpoint (struct breakpoint *b) | |
10511 | { | |
10512 | struct bp_location *bl = b->loc; | |
79a45e25 | 10513 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10514 | |
10515 | gdb_assert (bl); | |
10516 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10517 | ||
10518 | if (ui_out_is_mi_like_p (uiout)) | |
10519 | return; | |
10520 | ||
10521 | printf_filtered (_("Hardware assisted ranged breakpoint %d from %s to %s."), | |
10522 | b->number, paddress (bl->gdbarch, bl->address), | |
10523 | paddress (bl->gdbarch, bl->address + bl->length - 1)); | |
10524 | } | |
10525 | ||
10526 | /* Implement the "print_recreate" breakpoint_ops method for | |
10527 | ranged breakpoints. */ | |
10528 | ||
10529 | static void | |
10530 | print_recreate_ranged_breakpoint (struct breakpoint *b, struct ui_file *fp) | |
10531 | { | |
10532 | fprintf_unfiltered (fp, "break-range %s, %s", b->addr_string, | |
10533 | b->addr_string_range_end); | |
d9b3f62e | 10534 | print_recreate_thread (b, fp); |
f1310107 TJB |
10535 | } |
10536 | ||
10537 | /* The breakpoint_ops structure to be used in ranged breakpoints. */ | |
10538 | ||
2060206e | 10539 | static struct breakpoint_ops ranged_breakpoint_ops; |
f1310107 TJB |
10540 | |
10541 | /* Find the address where the end of the breakpoint range should be | |
10542 | placed, given the SAL of the end of the range. This is so that if | |
10543 | the user provides a line number, the end of the range is set to the | |
10544 | last instruction of the given line. */ | |
10545 | ||
10546 | static CORE_ADDR | |
10547 | find_breakpoint_range_end (struct symtab_and_line sal) | |
10548 | { | |
10549 | CORE_ADDR end; | |
10550 | ||
10551 | /* If the user provided a PC value, use it. Otherwise, | |
10552 | find the address of the end of the given location. */ | |
10553 | if (sal.explicit_pc) | |
10554 | end = sal.pc; | |
10555 | else | |
10556 | { | |
10557 | int ret; | |
10558 | CORE_ADDR start; | |
10559 | ||
10560 | ret = find_line_pc_range (sal, &start, &end); | |
10561 | if (!ret) | |
10562 | error (_("Could not find location of the end of the range.")); | |
10563 | ||
10564 | /* find_line_pc_range returns the start of the next line. */ | |
10565 | end--; | |
10566 | } | |
10567 | ||
10568 | return end; | |
10569 | } | |
10570 | ||
10571 | /* Implement the "break-range" CLI command. */ | |
10572 | ||
10573 | static void | |
10574 | break_range_command (char *arg, int from_tty) | |
10575 | { | |
10576 | char *arg_start, *addr_string_start, *addr_string_end; | |
10577 | struct linespec_result canonical_start, canonical_end; | |
10578 | int bp_count, can_use_bp, length; | |
10579 | CORE_ADDR end; | |
10580 | struct breakpoint *b; | |
10581 | struct symtab_and_line sal_start, sal_end; | |
f1310107 | 10582 | struct cleanup *cleanup_bkpt; |
f8eba3c6 | 10583 | struct linespec_sals *lsal_start, *lsal_end; |
f1310107 TJB |
10584 | |
10585 | /* We don't support software ranged breakpoints. */ | |
10586 | if (target_ranged_break_num_registers () < 0) | |
10587 | error (_("This target does not support hardware ranged breakpoints.")); | |
10588 | ||
10589 | bp_count = hw_breakpoint_used_count (); | |
10590 | bp_count += target_ranged_break_num_registers (); | |
10591 | can_use_bp = target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
10592 | bp_count, 0); | |
10593 | if (can_use_bp < 0) | |
10594 | error (_("Hardware breakpoints used exceeds limit.")); | |
10595 | ||
f8eba3c6 | 10596 | arg = skip_spaces (arg); |
f1310107 TJB |
10597 | if (arg == NULL || arg[0] == '\0') |
10598 | error(_("No address range specified.")); | |
10599 | ||
f1310107 TJB |
10600 | init_linespec_result (&canonical_start); |
10601 | ||
f8eba3c6 TT |
10602 | arg_start = arg; |
10603 | parse_breakpoint_sals (&arg, &canonical_start); | |
f1310107 | 10604 | |
f8eba3c6 | 10605 | cleanup_bkpt = make_cleanup_destroy_linespec_result (&canonical_start); |
f1310107 TJB |
10606 | |
10607 | if (arg[0] != ',') | |
10608 | error (_("Too few arguments.")); | |
f8eba3c6 | 10609 | else if (VEC_empty (linespec_sals, canonical_start.sals)) |
f1310107 | 10610 | error (_("Could not find location of the beginning of the range.")); |
f8eba3c6 TT |
10611 | |
10612 | lsal_start = VEC_index (linespec_sals, canonical_start.sals, 0); | |
10613 | ||
10614 | if (VEC_length (linespec_sals, canonical_start.sals) > 1 | |
10615 | || lsal_start->sals.nelts != 1) | |
f1310107 TJB |
10616 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10617 | ||
f8eba3c6 TT |
10618 | sal_start = lsal_start->sals.sals[0]; |
10619 | addr_string_start = savestring (arg_start, arg - arg_start); | |
10620 | make_cleanup (xfree, addr_string_start); | |
f1310107 TJB |
10621 | |
10622 | arg++; /* Skip the comma. */ | |
f8eba3c6 | 10623 | arg = skip_spaces (arg); |
f1310107 TJB |
10624 | |
10625 | /* Parse the end location. */ | |
10626 | ||
f1310107 TJB |
10627 | init_linespec_result (&canonical_end); |
10628 | arg_start = arg; | |
10629 | ||
f8eba3c6 | 10630 | /* We call decode_line_full directly here instead of using |
f1310107 TJB |
10631 | parse_breakpoint_sals because we need to specify the start location's |
10632 | symtab and line as the default symtab and line for the end of the | |
10633 | range. This makes it possible to have ranges like "foo.c:27, +14", | |
10634 | where +14 means 14 lines from the start location. */ | |
f8eba3c6 TT |
10635 | decode_line_full (&arg, DECODE_LINE_FUNFIRSTLINE, |
10636 | sal_start.symtab, sal_start.line, | |
10637 | &canonical_end, NULL, NULL); | |
10638 | ||
10639 | make_cleanup_destroy_linespec_result (&canonical_end); | |
f1310107 | 10640 | |
f8eba3c6 | 10641 | if (VEC_empty (linespec_sals, canonical_end.sals)) |
f1310107 | 10642 | error (_("Could not find location of the end of the range.")); |
f8eba3c6 TT |
10643 | |
10644 | lsal_end = VEC_index (linespec_sals, canonical_end.sals, 0); | |
10645 | if (VEC_length (linespec_sals, canonical_end.sals) > 1 | |
10646 | || lsal_end->sals.nelts != 1) | |
f1310107 TJB |
10647 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10648 | ||
f8eba3c6 TT |
10649 | sal_end = lsal_end->sals.sals[0]; |
10650 | addr_string_end = savestring (arg_start, arg - arg_start); | |
10651 | make_cleanup (xfree, addr_string_end); | |
f1310107 TJB |
10652 | |
10653 | end = find_breakpoint_range_end (sal_end); | |
10654 | if (sal_start.pc > end) | |
177b42fe | 10655 | error (_("Invalid address range, end precedes start.")); |
f1310107 TJB |
10656 | |
10657 | length = end - sal_start.pc + 1; | |
10658 | if (length < 0) | |
10659 | /* Length overflowed. */ | |
10660 | error (_("Address range too large.")); | |
10661 | else if (length == 1) | |
10662 | { | |
10663 | /* This range is simple enough to be handled by | |
10664 | the `hbreak' command. */ | |
10665 | hbreak_command (addr_string_start, 1); | |
10666 | ||
10667 | do_cleanups (cleanup_bkpt); | |
10668 | ||
10669 | return; | |
10670 | } | |
10671 | ||
10672 | /* Now set up the breakpoint. */ | |
10673 | b = set_raw_breakpoint (get_current_arch (), sal_start, | |
348d480f | 10674 | bp_hardware_breakpoint, &ranged_breakpoint_ops); |
f1310107 TJB |
10675 | set_breakpoint_count (breakpoint_count + 1); |
10676 | b->number = breakpoint_count; | |
10677 | b->disposition = disp_donttouch; | |
f8eba3c6 TT |
10678 | b->addr_string = xstrdup (addr_string_start); |
10679 | b->addr_string_range_end = xstrdup (addr_string_end); | |
f1310107 TJB |
10680 | b->loc->length = length; |
10681 | ||
f8eba3c6 | 10682 | do_cleanups (cleanup_bkpt); |
f1310107 TJB |
10683 | |
10684 | mention (b); | |
8d3788bd | 10685 | observer_notify_breakpoint_created (b); |
44702360 | 10686 | update_global_location_list (UGLL_MAY_INSERT); |
f1310107 TJB |
10687 | } |
10688 | ||
4a64f543 MS |
10689 | /* Return non-zero if EXP is verified as constant. Returned zero |
10690 | means EXP is variable. Also the constant detection may fail for | |
10691 | some constant expressions and in such case still falsely return | |
10692 | zero. */ | |
2e6e3d9c | 10693 | |
65d79d4b SDJ |
10694 | static int |
10695 | watchpoint_exp_is_const (const struct expression *exp) | |
10696 | { | |
10697 | int i = exp->nelts; | |
10698 | ||
10699 | while (i > 0) | |
10700 | { | |
10701 | int oplenp, argsp; | |
10702 | ||
10703 | /* We are only interested in the descriptor of each element. */ | |
10704 | operator_length (exp, i, &oplenp, &argsp); | |
10705 | i -= oplenp; | |
10706 | ||
10707 | switch (exp->elts[i].opcode) | |
10708 | { | |
10709 | case BINOP_ADD: | |
10710 | case BINOP_SUB: | |
10711 | case BINOP_MUL: | |
10712 | case BINOP_DIV: | |
10713 | case BINOP_REM: | |
10714 | case BINOP_MOD: | |
10715 | case BINOP_LSH: | |
10716 | case BINOP_RSH: | |
10717 | case BINOP_LOGICAL_AND: | |
10718 | case BINOP_LOGICAL_OR: | |
10719 | case BINOP_BITWISE_AND: | |
10720 | case BINOP_BITWISE_IOR: | |
10721 | case BINOP_BITWISE_XOR: | |
10722 | case BINOP_EQUAL: | |
10723 | case BINOP_NOTEQUAL: | |
10724 | case BINOP_LESS: | |
10725 | case BINOP_GTR: | |
10726 | case BINOP_LEQ: | |
10727 | case BINOP_GEQ: | |
10728 | case BINOP_REPEAT: | |
10729 | case BINOP_COMMA: | |
10730 | case BINOP_EXP: | |
10731 | case BINOP_MIN: | |
10732 | case BINOP_MAX: | |
10733 | case BINOP_INTDIV: | |
10734 | case BINOP_CONCAT: | |
65d79d4b SDJ |
10735 | case TERNOP_COND: |
10736 | case TERNOP_SLICE: | |
65d79d4b SDJ |
10737 | |
10738 | case OP_LONG: | |
10739 | case OP_DOUBLE: | |
10740 | case OP_DECFLOAT: | |
10741 | case OP_LAST: | |
10742 | case OP_COMPLEX: | |
10743 | case OP_STRING: | |
65d79d4b SDJ |
10744 | case OP_ARRAY: |
10745 | case OP_TYPE: | |
608b4967 TT |
10746 | case OP_TYPEOF: |
10747 | case OP_DECLTYPE: | |
6e72ca20 | 10748 | case OP_TYPEID: |
65d79d4b SDJ |
10749 | case OP_NAME: |
10750 | case OP_OBJC_NSSTRING: | |
10751 | ||
10752 | case UNOP_NEG: | |
10753 | case UNOP_LOGICAL_NOT: | |
10754 | case UNOP_COMPLEMENT: | |
10755 | case UNOP_ADDR: | |
10756 | case UNOP_HIGH: | |
aeaa2474 | 10757 | case UNOP_CAST: |
9eaf6705 TT |
10758 | |
10759 | case UNOP_CAST_TYPE: | |
10760 | case UNOP_REINTERPRET_CAST: | |
10761 | case UNOP_DYNAMIC_CAST: | |
4a64f543 MS |
10762 | /* Unary, binary and ternary operators: We have to check |
10763 | their operands. If they are constant, then so is the | |
10764 | result of that operation. For instance, if A and B are | |
10765 | determined to be constants, then so is "A + B". | |
10766 | ||
10767 | UNOP_IND is one exception to the rule above, because the | |
10768 | value of *ADDR is not necessarily a constant, even when | |
10769 | ADDR is. */ | |
65d79d4b SDJ |
10770 | break; |
10771 | ||
10772 | case OP_VAR_VALUE: | |
10773 | /* Check whether the associated symbol is a constant. | |
4a64f543 | 10774 | |
65d79d4b | 10775 | We use SYMBOL_CLASS rather than TYPE_CONST because it's |
4a64f543 MS |
10776 | possible that a buggy compiler could mark a variable as |
10777 | constant even when it is not, and TYPE_CONST would return | |
10778 | true in this case, while SYMBOL_CLASS wouldn't. | |
10779 | ||
10780 | We also have to check for function symbols because they | |
10781 | are always constant. */ | |
65d79d4b SDJ |
10782 | { |
10783 | struct symbol *s = exp->elts[i + 2].symbol; | |
10784 | ||
10785 | if (SYMBOL_CLASS (s) != LOC_BLOCK | |
10786 | && SYMBOL_CLASS (s) != LOC_CONST | |
10787 | && SYMBOL_CLASS (s) != LOC_CONST_BYTES) | |
10788 | return 0; | |
10789 | break; | |
10790 | } | |
10791 | ||
10792 | /* The default action is to return 0 because we are using | |
10793 | the optimistic approach here: If we don't know something, | |
10794 | then it is not a constant. */ | |
10795 | default: | |
10796 | return 0; | |
10797 | } | |
10798 | } | |
10799 | ||
10800 | return 1; | |
10801 | } | |
10802 | ||
3a5c3e22 PA |
10803 | /* Implement the "dtor" breakpoint_ops method for watchpoints. */ |
10804 | ||
10805 | static void | |
10806 | dtor_watchpoint (struct breakpoint *self) | |
10807 | { | |
10808 | struct watchpoint *w = (struct watchpoint *) self; | |
10809 | ||
10810 | xfree (w->cond_exp); | |
10811 | xfree (w->exp); | |
10812 | xfree (w->exp_string); | |
10813 | xfree (w->exp_string_reparse); | |
10814 | value_free (w->val); | |
10815 | ||
10816 | base_breakpoint_ops.dtor (self); | |
10817 | } | |
10818 | ||
348d480f PA |
10819 | /* Implement the "re_set" breakpoint_ops method for watchpoints. */ |
10820 | ||
10821 | static void | |
10822 | re_set_watchpoint (struct breakpoint *b) | |
10823 | { | |
3a5c3e22 PA |
10824 | struct watchpoint *w = (struct watchpoint *) b; |
10825 | ||
348d480f PA |
10826 | /* Watchpoint can be either on expression using entirely global |
10827 | variables, or it can be on local variables. | |
10828 | ||
10829 | Watchpoints of the first kind are never auto-deleted, and even | |
10830 | persist across program restarts. Since they can use variables | |
10831 | from shared libraries, we need to reparse expression as libraries | |
10832 | are loaded and unloaded. | |
10833 | ||
10834 | Watchpoints on local variables can also change meaning as result | |
10835 | of solib event. For example, if a watchpoint uses both a local | |
10836 | and a global variables in expression, it's a local watchpoint, | |
10837 | but unloading of a shared library will make the expression | |
10838 | invalid. This is not a very common use case, but we still | |
10839 | re-evaluate expression, to avoid surprises to the user. | |
10840 | ||
10841 | Note that for local watchpoints, we re-evaluate it only if | |
10842 | watchpoints frame id is still valid. If it's not, it means the | |
10843 | watchpoint is out of scope and will be deleted soon. In fact, | |
10844 | I'm not sure we'll ever be called in this case. | |
10845 | ||
10846 | If a local watchpoint's frame id is still valid, then | |
3a5c3e22 | 10847 | w->exp_valid_block is likewise valid, and we can safely use it. |
348d480f | 10848 | |
3a5c3e22 PA |
10849 | Don't do anything about disabled watchpoints, since they will be |
10850 | reevaluated again when enabled. */ | |
10851 | update_watchpoint (w, 1 /* reparse */); | |
348d480f PA |
10852 | } |
10853 | ||
77b06cd7 TJB |
10854 | /* Implement the "insert" breakpoint_ops method for hardware watchpoints. */ |
10855 | ||
10856 | static int | |
10857 | insert_watchpoint (struct bp_location *bl) | |
10858 | { | |
3a5c3e22 PA |
10859 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10860 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10861 | |
10862 | return target_insert_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10863 | w->cond_exp); |
77b06cd7 TJB |
10864 | } |
10865 | ||
10866 | /* Implement the "remove" breakpoint_ops method for hardware watchpoints. */ | |
10867 | ||
10868 | static int | |
10869 | remove_watchpoint (struct bp_location *bl) | |
10870 | { | |
3a5c3e22 PA |
10871 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10872 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10873 | |
10874 | return target_remove_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10875 | w->cond_exp); |
e09342b5 TJB |
10876 | } |
10877 | ||
e09342b5 | 10878 | static int |
348d480f | 10879 | breakpoint_hit_watchpoint (const struct bp_location *bl, |
09ac7c10 TT |
10880 | struct address_space *aspace, CORE_ADDR bp_addr, |
10881 | const struct target_waitstatus *ws) | |
e09342b5 | 10882 | { |
348d480f | 10883 | struct breakpoint *b = bl->owner; |
3a5c3e22 | 10884 | struct watchpoint *w = (struct watchpoint *) b; |
77b06cd7 | 10885 | |
348d480f PA |
10886 | /* Continuable hardware watchpoints are treated as non-existent if the |
10887 | reason we stopped wasn't a hardware watchpoint (we didn't stop on | |
10888 | some data address). Otherwise gdb won't stop on a break instruction | |
10889 | in the code (not from a breakpoint) when a hardware watchpoint has | |
10890 | been defined. Also skip watchpoints which we know did not trigger | |
10891 | (did not match the data address). */ | |
10892 | if (is_hardware_watchpoint (b) | |
3a5c3e22 | 10893 | && w->watchpoint_triggered == watch_triggered_no) |
348d480f | 10894 | return 0; |
9c06b0b4 | 10895 | |
348d480f | 10896 | return 1; |
9c06b0b4 TJB |
10897 | } |
10898 | ||
348d480f PA |
10899 | static void |
10900 | check_status_watchpoint (bpstat bs) | |
9c06b0b4 | 10901 | { |
348d480f | 10902 | gdb_assert (is_watchpoint (bs->breakpoint_at)); |
9c06b0b4 | 10903 | |
348d480f | 10904 | bpstat_check_watchpoint (bs); |
9c06b0b4 TJB |
10905 | } |
10906 | ||
10907 | /* Implement the "resources_needed" breakpoint_ops method for | |
348d480f | 10908 | hardware watchpoints. */ |
9c06b0b4 TJB |
10909 | |
10910 | static int | |
348d480f | 10911 | resources_needed_watchpoint (const struct bp_location *bl) |
9c06b0b4 | 10912 | { |
3a5c3e22 PA |
10913 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10914 | int length = w->exact? 1 : bl->length; | |
348d480f PA |
10915 | |
10916 | return target_region_ok_for_hw_watchpoint (bl->address, length); | |
9c06b0b4 TJB |
10917 | } |
10918 | ||
10919 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
348d480f | 10920 | hardware watchpoints. */ |
9c06b0b4 TJB |
10921 | |
10922 | static int | |
348d480f | 10923 | works_in_software_mode_watchpoint (const struct breakpoint *b) |
9c06b0b4 | 10924 | { |
efa80663 PA |
10925 | /* Read and access watchpoints only work with hardware support. */ |
10926 | return b->type == bp_watchpoint || b->type == bp_hardware_watchpoint; | |
9c06b0b4 TJB |
10927 | } |
10928 | ||
9c06b0b4 | 10929 | static enum print_stop_action |
348d480f | 10930 | print_it_watchpoint (bpstat bs) |
9c06b0b4 | 10931 | { |
348d480f PA |
10932 | struct cleanup *old_chain; |
10933 | struct breakpoint *b; | |
f99d8bf4 | 10934 | struct ui_file *stb; |
348d480f | 10935 | enum print_stop_action result; |
3a5c3e22 | 10936 | struct watchpoint *w; |
79a45e25 | 10937 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10938 | |
10939 | gdb_assert (bs->bp_location_at != NULL); | |
10940 | ||
348d480f | 10941 | b = bs->breakpoint_at; |
3a5c3e22 | 10942 | w = (struct watchpoint *) b; |
348d480f | 10943 | |
f99d8bf4 PA |
10944 | stb = mem_fileopen (); |
10945 | old_chain = make_cleanup_ui_file_delete (stb); | |
9c06b0b4 TJB |
10946 | |
10947 | switch (b->type) | |
10948 | { | |
348d480f | 10949 | case bp_watchpoint: |
9c06b0b4 TJB |
10950 | case bp_hardware_watchpoint: |
10951 | annotate_watchpoint (b->number); | |
10952 | if (ui_out_is_mi_like_p (uiout)) | |
10953 | ui_out_field_string | |
10954 | (uiout, "reason", | |
10955 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10956 | mention (b); |
10957 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10958 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10959 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10960 | ui_out_field_stream (uiout, "old", stb); |
10961 | ui_out_text (uiout, "\nNew value = "); | |
f99d8bf4 | 10962 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10963 | ui_out_field_stream (uiout, "new", stb); |
10964 | ui_out_text (uiout, "\n"); | |
10965 | /* More than one watchpoint may have been triggered. */ | |
10966 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10967 | break; |
10968 | ||
10969 | case bp_read_watchpoint: | |
10970 | if (ui_out_is_mi_like_p (uiout)) | |
10971 | ui_out_field_string | |
10972 | (uiout, "reason", | |
10973 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10974 | mention (b); |
10975 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10976 | ui_out_text (uiout, "\nValue = "); | |
f99d8bf4 | 10977 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10978 | ui_out_field_stream (uiout, "value", stb); |
10979 | ui_out_text (uiout, "\n"); | |
10980 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10981 | break; |
10982 | ||
10983 | case bp_access_watchpoint: | |
348d480f PA |
10984 | if (bs->old_val != NULL) |
10985 | { | |
10986 | annotate_watchpoint (b->number); | |
10987 | if (ui_out_is_mi_like_p (uiout)) | |
10988 | ui_out_field_string | |
10989 | (uiout, "reason", | |
10990 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10991 | mention (b); | |
10992 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10993 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10994 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10995 | ui_out_field_stream (uiout, "old", stb); |
10996 | ui_out_text (uiout, "\nNew value = "); | |
10997 | } | |
10998 | else | |
10999 | { | |
11000 | mention (b); | |
11001 | if (ui_out_is_mi_like_p (uiout)) | |
11002 | ui_out_field_string | |
11003 | (uiout, "reason", | |
11004 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
11005 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
11006 | ui_out_text (uiout, "\nValue = "); | |
11007 | } | |
f99d8bf4 | 11008 | watchpoint_value_print (w->val, stb); |
348d480f PA |
11009 | ui_out_field_stream (uiout, "new", stb); |
11010 | ui_out_text (uiout, "\n"); | |
11011 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
11012 | break; |
11013 | default: | |
348d480f | 11014 | result = PRINT_UNKNOWN; |
9c06b0b4 TJB |
11015 | } |
11016 | ||
348d480f PA |
11017 | do_cleanups (old_chain); |
11018 | return result; | |
11019 | } | |
11020 | ||
11021 | /* Implement the "print_mention" breakpoint_ops method for hardware | |
11022 | watchpoints. */ | |
11023 | ||
11024 | static void | |
11025 | print_mention_watchpoint (struct breakpoint *b) | |
11026 | { | |
11027 | struct cleanup *ui_out_chain; | |
3a5c3e22 | 11028 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 11029 | struct ui_out *uiout = current_uiout; |
348d480f PA |
11030 | |
11031 | switch (b->type) | |
11032 | { | |
11033 | case bp_watchpoint: | |
11034 | ui_out_text (uiout, "Watchpoint "); | |
11035 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
11036 | break; | |
11037 | case bp_hardware_watchpoint: | |
11038 | ui_out_text (uiout, "Hardware watchpoint "); | |
11039 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
11040 | break; | |
11041 | case bp_read_watchpoint: | |
11042 | ui_out_text (uiout, "Hardware read watchpoint "); | |
11043 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
11044 | break; | |
11045 | case bp_access_watchpoint: | |
11046 | ui_out_text (uiout, "Hardware access (read/write) watchpoint "); | |
11047 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
11048 | break; | |
11049 | default: | |
11050 | internal_error (__FILE__, __LINE__, | |
11051 | _("Invalid hardware watchpoint type.")); | |
11052 | } | |
11053 | ||
11054 | ui_out_field_int (uiout, "number", b->number); | |
11055 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 11056 | ui_out_field_string (uiout, "exp", w->exp_string); |
348d480f PA |
11057 | do_cleanups (ui_out_chain); |
11058 | } | |
11059 | ||
11060 | /* Implement the "print_recreate" breakpoint_ops method for | |
11061 | watchpoints. */ | |
11062 | ||
11063 | static void | |
11064 | print_recreate_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
11065 | { | |
3a5c3e22 PA |
11066 | struct watchpoint *w = (struct watchpoint *) b; |
11067 | ||
348d480f PA |
11068 | switch (b->type) |
11069 | { | |
11070 | case bp_watchpoint: | |
11071 | case bp_hardware_watchpoint: | |
11072 | fprintf_unfiltered (fp, "watch"); | |
11073 | break; | |
11074 | case bp_read_watchpoint: | |
11075 | fprintf_unfiltered (fp, "rwatch"); | |
11076 | break; | |
11077 | case bp_access_watchpoint: | |
11078 | fprintf_unfiltered (fp, "awatch"); | |
11079 | break; | |
11080 | default: | |
11081 | internal_error (__FILE__, __LINE__, | |
11082 | _("Invalid watchpoint type.")); | |
11083 | } | |
11084 | ||
3a5c3e22 | 11085 | fprintf_unfiltered (fp, " %s", w->exp_string); |
d9b3f62e | 11086 | print_recreate_thread (b, fp); |
348d480f PA |
11087 | } |
11088 | ||
427cd150 TT |
11089 | /* Implement the "explains_signal" breakpoint_ops method for |
11090 | watchpoints. */ | |
11091 | ||
47591c29 | 11092 | static int |
427cd150 TT |
11093 | explains_signal_watchpoint (struct breakpoint *b, enum gdb_signal sig) |
11094 | { | |
11095 | /* A software watchpoint cannot cause a signal other than | |
11096 | GDB_SIGNAL_TRAP. */ | |
11097 | if (b->type == bp_watchpoint && sig != GDB_SIGNAL_TRAP) | |
47591c29 | 11098 | return 0; |
427cd150 | 11099 | |
47591c29 | 11100 | return 1; |
427cd150 TT |
11101 | } |
11102 | ||
348d480f PA |
11103 | /* The breakpoint_ops structure to be used in hardware watchpoints. */ |
11104 | ||
2060206e | 11105 | static struct breakpoint_ops watchpoint_breakpoint_ops; |
348d480f PA |
11106 | |
11107 | /* Implement the "insert" breakpoint_ops method for | |
11108 | masked hardware watchpoints. */ | |
11109 | ||
11110 | static int | |
11111 | insert_masked_watchpoint (struct bp_location *bl) | |
11112 | { | |
3a5c3e22 PA |
11113 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
11114 | ||
11115 | return target_insert_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
11116 | bl->watchpoint_type); |
11117 | } | |
11118 | ||
11119 | /* Implement the "remove" breakpoint_ops method for | |
11120 | masked hardware watchpoints. */ | |
11121 | ||
11122 | static int | |
11123 | remove_masked_watchpoint (struct bp_location *bl) | |
11124 | { | |
3a5c3e22 PA |
11125 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
11126 | ||
11127 | return target_remove_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
11128 | bl->watchpoint_type); |
11129 | } | |
11130 | ||
11131 | /* Implement the "resources_needed" breakpoint_ops method for | |
11132 | masked hardware watchpoints. */ | |
11133 | ||
11134 | static int | |
11135 | resources_needed_masked_watchpoint (const struct bp_location *bl) | |
11136 | { | |
3a5c3e22 PA |
11137 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
11138 | ||
11139 | return target_masked_watch_num_registers (bl->address, w->hw_wp_mask); | |
348d480f PA |
11140 | } |
11141 | ||
11142 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
11143 | masked hardware watchpoints. */ | |
11144 | ||
11145 | static int | |
11146 | works_in_software_mode_masked_watchpoint (const struct breakpoint *b) | |
11147 | { | |
11148 | return 0; | |
11149 | } | |
11150 | ||
11151 | /* Implement the "print_it" breakpoint_ops method for | |
11152 | masked hardware watchpoints. */ | |
11153 | ||
11154 | static enum print_stop_action | |
11155 | print_it_masked_watchpoint (bpstat bs) | |
11156 | { | |
11157 | struct breakpoint *b = bs->breakpoint_at; | |
79a45e25 | 11158 | struct ui_out *uiout = current_uiout; |
348d480f PA |
11159 | |
11160 | /* Masked watchpoints have only one location. */ | |
11161 | gdb_assert (b->loc && b->loc->next == NULL); | |
11162 | ||
11163 | switch (b->type) | |
11164 | { | |
11165 | case bp_hardware_watchpoint: | |
11166 | annotate_watchpoint (b->number); | |
11167 | if (ui_out_is_mi_like_p (uiout)) | |
11168 | ui_out_field_string | |
11169 | (uiout, "reason", | |
11170 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
11171 | break; | |
11172 | ||
11173 | case bp_read_watchpoint: | |
11174 | if (ui_out_is_mi_like_p (uiout)) | |
11175 | ui_out_field_string | |
11176 | (uiout, "reason", | |
11177 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
11178 | break; | |
11179 | ||
11180 | case bp_access_watchpoint: | |
11181 | if (ui_out_is_mi_like_p (uiout)) | |
11182 | ui_out_field_string | |
11183 | (uiout, "reason", | |
11184 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
11185 | break; | |
11186 | default: | |
11187 | internal_error (__FILE__, __LINE__, | |
11188 | _("Invalid hardware watchpoint type.")); | |
11189 | } | |
11190 | ||
11191 | mention (b); | |
9c06b0b4 TJB |
11192 | ui_out_text (uiout, _("\n\ |
11193 | Check the underlying instruction at PC for the memory\n\ | |
11194 | address and value which triggered this watchpoint.\n")); | |
11195 | ui_out_text (uiout, "\n"); | |
11196 | ||
11197 | /* More than one watchpoint may have been triggered. */ | |
11198 | return PRINT_UNKNOWN; | |
11199 | } | |
11200 | ||
11201 | /* Implement the "print_one_detail" breakpoint_ops method for | |
11202 | masked hardware watchpoints. */ | |
11203 | ||
11204 | static void | |
11205 | print_one_detail_masked_watchpoint (const struct breakpoint *b, | |
11206 | struct ui_out *uiout) | |
11207 | { | |
3a5c3e22 PA |
11208 | struct watchpoint *w = (struct watchpoint *) b; |
11209 | ||
9c06b0b4 TJB |
11210 | /* Masked watchpoints have only one location. */ |
11211 | gdb_assert (b->loc && b->loc->next == NULL); | |
11212 | ||
11213 | ui_out_text (uiout, "\tmask "); | |
3a5c3e22 | 11214 | ui_out_field_core_addr (uiout, "mask", b->loc->gdbarch, w->hw_wp_mask); |
9c06b0b4 TJB |
11215 | ui_out_text (uiout, "\n"); |
11216 | } | |
11217 | ||
11218 | /* Implement the "print_mention" breakpoint_ops method for | |
11219 | masked hardware watchpoints. */ | |
11220 | ||
11221 | static void | |
11222 | print_mention_masked_watchpoint (struct breakpoint *b) | |
11223 | { | |
3a5c3e22 | 11224 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 11225 | struct ui_out *uiout = current_uiout; |
9c06b0b4 TJB |
11226 | struct cleanup *ui_out_chain; |
11227 | ||
11228 | switch (b->type) | |
11229 | { | |
11230 | case bp_hardware_watchpoint: | |
11231 | ui_out_text (uiout, "Masked hardware watchpoint "); | |
11232 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
11233 | break; | |
11234 | case bp_read_watchpoint: | |
11235 | ui_out_text (uiout, "Masked hardware read watchpoint "); | |
11236 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
11237 | break; | |
11238 | case bp_access_watchpoint: | |
11239 | ui_out_text (uiout, "Masked hardware access (read/write) watchpoint "); | |
11240 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
11241 | break; | |
11242 | default: | |
11243 | internal_error (__FILE__, __LINE__, | |
11244 | _("Invalid hardware watchpoint type.")); | |
11245 | } | |
11246 | ||
11247 | ui_out_field_int (uiout, "number", b->number); | |
11248 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 11249 | ui_out_field_string (uiout, "exp", w->exp_string); |
9c06b0b4 TJB |
11250 | do_cleanups (ui_out_chain); |
11251 | } | |
11252 | ||
11253 | /* Implement the "print_recreate" breakpoint_ops method for | |
11254 | masked hardware watchpoints. */ | |
11255 | ||
11256 | static void | |
11257 | print_recreate_masked_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
11258 | { | |
3a5c3e22 | 11259 | struct watchpoint *w = (struct watchpoint *) b; |
9c06b0b4 TJB |
11260 | char tmp[40]; |
11261 | ||
11262 | switch (b->type) | |
11263 | { | |
11264 | case bp_hardware_watchpoint: | |
11265 | fprintf_unfiltered (fp, "watch"); | |
11266 | break; | |
11267 | case bp_read_watchpoint: | |
11268 | fprintf_unfiltered (fp, "rwatch"); | |
11269 | break; | |
11270 | case bp_access_watchpoint: | |
11271 | fprintf_unfiltered (fp, "awatch"); | |
11272 | break; | |
11273 | default: | |
11274 | internal_error (__FILE__, __LINE__, | |
11275 | _("Invalid hardware watchpoint type.")); | |
11276 | } | |
11277 | ||
3a5c3e22 PA |
11278 | sprintf_vma (tmp, w->hw_wp_mask); |
11279 | fprintf_unfiltered (fp, " %s mask 0x%s", w->exp_string, tmp); | |
d9b3f62e | 11280 | print_recreate_thread (b, fp); |
9c06b0b4 TJB |
11281 | } |
11282 | ||
11283 | /* The breakpoint_ops structure to be used in masked hardware watchpoints. */ | |
11284 | ||
2060206e | 11285 | static struct breakpoint_ops masked_watchpoint_breakpoint_ops; |
9c06b0b4 TJB |
11286 | |
11287 | /* Tell whether the given watchpoint is a masked hardware watchpoint. */ | |
11288 | ||
11289 | static int | |
11290 | is_masked_watchpoint (const struct breakpoint *b) | |
11291 | { | |
11292 | return b->ops == &masked_watchpoint_breakpoint_ops; | |
11293 | } | |
11294 | ||
53a5351d JM |
11295 | /* accessflag: hw_write: watch write, |
11296 | hw_read: watch read, | |
11297 | hw_access: watch access (read or write) */ | |
c906108c | 11298 | static void |
bbc13ae3 | 11299 | watch_command_1 (const char *arg, int accessflag, int from_tty, |
84f4c1fe | 11300 | int just_location, int internal) |
c906108c | 11301 | { |
a9634178 | 11302 | volatile struct gdb_exception e; |
d983da9c | 11303 | struct breakpoint *b, *scope_breakpoint = NULL; |
c906108c | 11304 | struct expression *exp; |
270140bd | 11305 | const struct block *exp_valid_block = NULL, *cond_exp_valid_block = NULL; |
a1442452 | 11306 | struct value *val, *mark, *result; |
bb9d5f81 | 11307 | int saved_bitpos = 0, saved_bitsize = 0; |
c906108c | 11308 | struct frame_info *frame; |
bbc13ae3 KS |
11309 | const char *exp_start = NULL; |
11310 | const char *exp_end = NULL; | |
11311 | const char *tok, *end_tok; | |
9c06b0b4 | 11312 | int toklen = -1; |
bbc13ae3 KS |
11313 | const char *cond_start = NULL; |
11314 | const char *cond_end = NULL; | |
c906108c | 11315 | enum bptype bp_type; |
37e4754d | 11316 | int thread = -1; |
0cf6dd15 | 11317 | int pc = 0; |
9c06b0b4 TJB |
11318 | /* Flag to indicate whether we are going to use masks for |
11319 | the hardware watchpoint. */ | |
11320 | int use_mask = 0; | |
11321 | CORE_ADDR mask = 0; | |
3a5c3e22 | 11322 | struct watchpoint *w; |
bbc13ae3 KS |
11323 | char *expression; |
11324 | struct cleanup *back_to; | |
c906108c | 11325 | |
37e4754d LM |
11326 | /* Make sure that we actually have parameters to parse. */ |
11327 | if (arg != NULL && arg[0] != '\0') | |
11328 | { | |
bbc13ae3 KS |
11329 | const char *value_start; |
11330 | ||
11331 | exp_end = arg + strlen (arg); | |
37e4754d | 11332 | |
9c06b0b4 TJB |
11333 | /* Look for "parameter value" pairs at the end |
11334 | of the arguments string. */ | |
bbc13ae3 | 11335 | for (tok = exp_end - 1; tok > arg; tok--) |
9c06b0b4 TJB |
11336 | { |
11337 | /* Skip whitespace at the end of the argument list. */ | |
11338 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11339 | tok--; | |
11340 | ||
11341 | /* Find the beginning of the last token. | |
11342 | This is the value of the parameter. */ | |
11343 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11344 | tok--; | |
11345 | value_start = tok + 1; | |
11346 | ||
11347 | /* Skip whitespace. */ | |
11348 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11349 | tok--; | |
11350 | ||
11351 | end_tok = tok; | |
11352 | ||
11353 | /* Find the beginning of the second to last token. | |
11354 | This is the parameter itself. */ | |
11355 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11356 | tok--; | |
11357 | tok++; | |
11358 | toklen = end_tok - tok + 1; | |
11359 | ||
11360 | if (toklen == 6 && !strncmp (tok, "thread", 6)) | |
11361 | { | |
11362 | /* At this point we've found a "thread" token, which means | |
11363 | the user is trying to set a watchpoint that triggers | |
11364 | only in a specific thread. */ | |
11365 | char *endp; | |
37e4754d | 11366 | |
9c06b0b4 TJB |
11367 | if (thread != -1) |
11368 | error(_("You can specify only one thread.")); | |
37e4754d | 11369 | |
9c06b0b4 TJB |
11370 | /* Extract the thread ID from the next token. */ |
11371 | thread = strtol (value_start, &endp, 0); | |
37e4754d | 11372 | |
9c06b0b4 TJB |
11373 | /* Check if the user provided a valid numeric value for the |
11374 | thread ID. */ | |
11375 | if (*endp != ' ' && *endp != '\t' && *endp != '\0') | |
11376 | error (_("Invalid thread ID specification %s."), value_start); | |
11377 | ||
11378 | /* Check if the thread actually exists. */ | |
11379 | if (!valid_thread_id (thread)) | |
af4908ba | 11380 | invalid_thread_id_error (thread); |
9c06b0b4 TJB |
11381 | } |
11382 | else if (toklen == 4 && !strncmp (tok, "mask", 4)) | |
11383 | { | |
11384 | /* We've found a "mask" token, which means the user wants to | |
11385 | create a hardware watchpoint that is going to have the mask | |
11386 | facility. */ | |
11387 | struct value *mask_value, *mark; | |
37e4754d | 11388 | |
9c06b0b4 TJB |
11389 | if (use_mask) |
11390 | error(_("You can specify only one mask.")); | |
37e4754d | 11391 | |
9c06b0b4 | 11392 | use_mask = just_location = 1; |
37e4754d | 11393 | |
9c06b0b4 TJB |
11394 | mark = value_mark (); |
11395 | mask_value = parse_to_comma_and_eval (&value_start); | |
11396 | mask = value_as_address (mask_value); | |
11397 | value_free_to_mark (mark); | |
11398 | } | |
11399 | else | |
11400 | /* We didn't recognize what we found. We should stop here. */ | |
11401 | break; | |
37e4754d | 11402 | |
9c06b0b4 TJB |
11403 | /* Truncate the string and get rid of the "parameter value" pair before |
11404 | the arguments string is parsed by the parse_exp_1 function. */ | |
bbc13ae3 | 11405 | exp_end = tok; |
9c06b0b4 | 11406 | } |
37e4754d | 11407 | } |
bbc13ae3 KS |
11408 | else |
11409 | exp_end = arg; | |
37e4754d | 11410 | |
bbc13ae3 KS |
11411 | /* Parse the rest of the arguments. From here on out, everything |
11412 | is in terms of a newly allocated string instead of the original | |
11413 | ARG. */ | |
c906108c | 11414 | innermost_block = NULL; |
bbc13ae3 KS |
11415 | expression = savestring (arg, exp_end - arg); |
11416 | back_to = make_cleanup (xfree, expression); | |
11417 | exp_start = arg = expression; | |
1bb9788d | 11418 | exp = parse_exp_1 (&arg, 0, 0, 0); |
c906108c | 11419 | exp_end = arg; |
fa8a61dc TT |
11420 | /* Remove trailing whitespace from the expression before saving it. |
11421 | This makes the eventual display of the expression string a bit | |
11422 | prettier. */ | |
11423 | while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t')) | |
11424 | --exp_end; | |
11425 | ||
65d79d4b SDJ |
11426 | /* Checking if the expression is not constant. */ |
11427 | if (watchpoint_exp_is_const (exp)) | |
11428 | { | |
11429 | int len; | |
11430 | ||
11431 | len = exp_end - exp_start; | |
11432 | while (len > 0 && isspace (exp_start[len - 1])) | |
11433 | len--; | |
11434 | error (_("Cannot watch constant value `%.*s'."), len, exp_start); | |
11435 | } | |
11436 | ||
c906108c SS |
11437 | exp_valid_block = innermost_block; |
11438 | mark = value_mark (); | |
3a1115a0 | 11439 | fetch_subexp_value (exp, &pc, &val, &result, NULL, just_location); |
06a64a0b | 11440 | |
bb9d5f81 PP |
11441 | if (val != NULL && just_location) |
11442 | { | |
11443 | saved_bitpos = value_bitpos (val); | |
11444 | saved_bitsize = value_bitsize (val); | |
11445 | } | |
11446 | ||
06a64a0b TT |
11447 | if (just_location) |
11448 | { | |
9c06b0b4 TJB |
11449 | int ret; |
11450 | ||
06a64a0b | 11451 | exp_valid_block = NULL; |
a1442452 | 11452 | val = value_addr (result); |
06a64a0b TT |
11453 | release_value (val); |
11454 | value_free_to_mark (mark); | |
9c06b0b4 TJB |
11455 | |
11456 | if (use_mask) | |
11457 | { | |
11458 | ret = target_masked_watch_num_registers (value_as_address (val), | |
11459 | mask); | |
11460 | if (ret == -1) | |
11461 | error (_("This target does not support masked watchpoints.")); | |
11462 | else if (ret == -2) | |
11463 | error (_("Invalid mask or memory region.")); | |
11464 | } | |
06a64a0b TT |
11465 | } |
11466 | else if (val != NULL) | |
fa4727a6 | 11467 | release_value (val); |
c906108c | 11468 | |
bbc13ae3 KS |
11469 | tok = skip_spaces_const (arg); |
11470 | end_tok = skip_to_space_const (tok); | |
c906108c SS |
11471 | |
11472 | toklen = end_tok - tok; | |
11473 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) | |
11474 | { | |
2d134ed3 PA |
11475 | struct expression *cond; |
11476 | ||
60e1c644 | 11477 | innermost_block = NULL; |
c906108c | 11478 | tok = cond_start = end_tok + 1; |
1bb9788d | 11479 | cond = parse_exp_1 (&tok, 0, 0, 0); |
60e1c644 PA |
11480 | |
11481 | /* The watchpoint expression may not be local, but the condition | |
11482 | may still be. E.g.: `watch global if local > 0'. */ | |
11483 | cond_exp_valid_block = innermost_block; | |
11484 | ||
2d134ed3 | 11485 | xfree (cond); |
c906108c SS |
11486 | cond_end = tok; |
11487 | } | |
11488 | if (*tok) | |
8a3fe4f8 | 11489 | error (_("Junk at end of command.")); |
c906108c | 11490 | |
d983da9c | 11491 | frame = block_innermost_frame (exp_valid_block); |
d983da9c DJ |
11492 | |
11493 | /* If the expression is "local", then set up a "watchpoint scope" | |
11494 | breakpoint at the point where we've left the scope of the watchpoint | |
11495 | expression. Create the scope breakpoint before the watchpoint, so | |
11496 | that we will encounter it first in bpstat_stop_status. */ | |
60e1c644 | 11497 | if (exp_valid_block && frame) |
d983da9c | 11498 | { |
edb3359d DJ |
11499 | if (frame_id_p (frame_unwind_caller_id (frame))) |
11500 | { | |
11501 | scope_breakpoint | |
a6d9a66e UW |
11502 | = create_internal_breakpoint (frame_unwind_caller_arch (frame), |
11503 | frame_unwind_caller_pc (frame), | |
06edf0c0 PA |
11504 | bp_watchpoint_scope, |
11505 | &momentary_breakpoint_ops); | |
d983da9c | 11506 | |
edb3359d | 11507 | scope_breakpoint->enable_state = bp_enabled; |
d983da9c | 11508 | |
edb3359d DJ |
11509 | /* Automatically delete the breakpoint when it hits. */ |
11510 | scope_breakpoint->disposition = disp_del; | |
d983da9c | 11511 | |
edb3359d DJ |
11512 | /* Only break in the proper frame (help with recursion). */ |
11513 | scope_breakpoint->frame_id = frame_unwind_caller_id (frame); | |
d983da9c | 11514 | |
edb3359d | 11515 | /* Set the address at which we will stop. */ |
a6d9a66e UW |
11516 | scope_breakpoint->loc->gdbarch |
11517 | = frame_unwind_caller_arch (frame); | |
edb3359d DJ |
11518 | scope_breakpoint->loc->requested_address |
11519 | = frame_unwind_caller_pc (frame); | |
11520 | scope_breakpoint->loc->address | |
a6d9a66e UW |
11521 | = adjust_breakpoint_address (scope_breakpoint->loc->gdbarch, |
11522 | scope_breakpoint->loc->requested_address, | |
edb3359d DJ |
11523 | scope_breakpoint->type); |
11524 | } | |
d983da9c DJ |
11525 | } |
11526 | ||
e8369a73 AB |
11527 | /* Now set up the breakpoint. We create all watchpoints as hardware |
11528 | watchpoints here even if hardware watchpoints are turned off, a call | |
11529 | to update_watchpoint later in this function will cause the type to | |
11530 | drop back to bp_watchpoint (software watchpoint) if required. */ | |
11531 | ||
11532 | if (accessflag == hw_read) | |
11533 | bp_type = bp_read_watchpoint; | |
11534 | else if (accessflag == hw_access) | |
11535 | bp_type = bp_access_watchpoint; | |
11536 | else | |
11537 | bp_type = bp_hardware_watchpoint; | |
3a5c3e22 PA |
11538 | |
11539 | w = XCNEW (struct watchpoint); | |
11540 | b = &w->base; | |
348d480f | 11541 | if (use_mask) |
3a5c3e22 PA |
11542 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11543 | &masked_watchpoint_breakpoint_ops); | |
348d480f | 11544 | else |
3a5c3e22 PA |
11545 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11546 | &watchpoint_breakpoint_ops); | |
37e4754d | 11547 | b->thread = thread; |
b5de0fa7 | 11548 | b->disposition = disp_donttouch; |
348d480f | 11549 | b->pspace = current_program_space; |
3a5c3e22 PA |
11550 | w->exp = exp; |
11551 | w->exp_valid_block = exp_valid_block; | |
11552 | w->cond_exp_valid_block = cond_exp_valid_block; | |
06a64a0b TT |
11553 | if (just_location) |
11554 | { | |
11555 | struct type *t = value_type (val); | |
11556 | CORE_ADDR addr = value_as_address (val); | |
11557 | char *name; | |
11558 | ||
11559 | t = check_typedef (TYPE_TARGET_TYPE (check_typedef (t))); | |
11560 | name = type_to_string (t); | |
11561 | ||
3a5c3e22 | 11562 | w->exp_string_reparse = xstrprintf ("* (%s *) %s", name, |
d63d0675 | 11563 | core_addr_to_string (addr)); |
06a64a0b TT |
11564 | xfree (name); |
11565 | ||
3a5c3e22 | 11566 | w->exp_string = xstrprintf ("-location %.*s", |
d63d0675 JK |
11567 | (int) (exp_end - exp_start), exp_start); |
11568 | ||
06a64a0b TT |
11569 | /* The above expression is in C. */ |
11570 | b->language = language_c; | |
11571 | } | |
11572 | else | |
3a5c3e22 | 11573 | w->exp_string = savestring (exp_start, exp_end - exp_start); |
9c06b0b4 TJB |
11574 | |
11575 | if (use_mask) | |
11576 | { | |
3a5c3e22 | 11577 | w->hw_wp_mask = mask; |
9c06b0b4 TJB |
11578 | } |
11579 | else | |
11580 | { | |
3a5c3e22 | 11581 | w->val = val; |
bb9d5f81 PP |
11582 | w->val_bitpos = saved_bitpos; |
11583 | w->val_bitsize = saved_bitsize; | |
3a5c3e22 | 11584 | w->val_valid = 1; |
9c06b0b4 | 11585 | } |
77b06cd7 | 11586 | |
c906108c SS |
11587 | if (cond_start) |
11588 | b->cond_string = savestring (cond_start, cond_end - cond_start); | |
11589 | else | |
11590 | b->cond_string = 0; | |
c5aa993b | 11591 | |
c906108c | 11592 | if (frame) |
f6bc2008 | 11593 | { |
3a5c3e22 PA |
11594 | w->watchpoint_frame = get_frame_id (frame); |
11595 | w->watchpoint_thread = inferior_ptid; | |
f6bc2008 | 11596 | } |
c906108c | 11597 | else |
f6bc2008 | 11598 | { |
3a5c3e22 PA |
11599 | w->watchpoint_frame = null_frame_id; |
11600 | w->watchpoint_thread = null_ptid; | |
f6bc2008 | 11601 | } |
c906108c | 11602 | |
d983da9c | 11603 | if (scope_breakpoint != NULL) |
c906108c | 11604 | { |
d983da9c DJ |
11605 | /* The scope breakpoint is related to the watchpoint. We will |
11606 | need to act on them together. */ | |
11607 | b->related_breakpoint = scope_breakpoint; | |
11608 | scope_breakpoint->related_breakpoint = b; | |
c906108c | 11609 | } |
d983da9c | 11610 | |
06a64a0b TT |
11611 | if (!just_location) |
11612 | value_free_to_mark (mark); | |
2d134ed3 | 11613 | |
a9634178 TJB |
11614 | TRY_CATCH (e, RETURN_MASK_ALL) |
11615 | { | |
11616 | /* Finally update the new watchpoint. This creates the locations | |
11617 | that should be inserted. */ | |
3a5c3e22 | 11618 | update_watchpoint (w, 1); |
a9634178 TJB |
11619 | } |
11620 | if (e.reason < 0) | |
11621 | { | |
11622 | delete_breakpoint (b); | |
11623 | throw_exception (e); | |
11624 | } | |
11625 | ||
3ea46bff | 11626 | install_breakpoint (internal, b, 1); |
bbc13ae3 | 11627 | do_cleanups (back_to); |
c906108c SS |
11628 | } |
11629 | ||
e09342b5 | 11630 | /* Return count of debug registers needed to watch the given expression. |
e09342b5 | 11631 | If the watchpoint cannot be handled in hardware return zero. */ |
c906108c | 11632 | |
c906108c | 11633 | static int |
a9634178 | 11634 | can_use_hardware_watchpoint (struct value *v) |
c906108c SS |
11635 | { |
11636 | int found_memory_cnt = 0; | |
2e70b7b9 | 11637 | struct value *head = v; |
c906108c SS |
11638 | |
11639 | /* Did the user specifically forbid us to use hardware watchpoints? */ | |
c5aa993b | 11640 | if (!can_use_hw_watchpoints) |
c906108c | 11641 | return 0; |
c5aa993b | 11642 | |
5c44784c JM |
11643 | /* Make sure that the value of the expression depends only upon |
11644 | memory contents, and values computed from them within GDB. If we | |
11645 | find any register references or function calls, we can't use a | |
11646 | hardware watchpoint. | |
11647 | ||
11648 | The idea here is that evaluating an expression generates a series | |
11649 | of values, one holding the value of every subexpression. (The | |
11650 | expression a*b+c has five subexpressions: a, b, a*b, c, and | |
11651 | a*b+c.) GDB's values hold almost enough information to establish | |
11652 | the criteria given above --- they identify memory lvalues, | |
11653 | register lvalues, computed values, etcetera. So we can evaluate | |
11654 | the expression, and then scan the chain of values that leaves | |
11655 | behind to decide whether we can detect any possible change to the | |
11656 | expression's final value using only hardware watchpoints. | |
11657 | ||
11658 | However, I don't think that the values returned by inferior | |
11659 | function calls are special in any way. So this function may not | |
11660 | notice that an expression involving an inferior function call | |
11661 | can't be watched with hardware watchpoints. FIXME. */ | |
17cf0ecd | 11662 | for (; v; v = value_next (v)) |
c906108c | 11663 | { |
5c44784c | 11664 | if (VALUE_LVAL (v) == lval_memory) |
c906108c | 11665 | { |
8464be76 DJ |
11666 | if (v != head && value_lazy (v)) |
11667 | /* A lazy memory lvalue in the chain is one that GDB never | |
11668 | needed to fetch; we either just used its address (e.g., | |
11669 | `a' in `a.b') or we never needed it at all (e.g., `a' | |
11670 | in `a,b'). This doesn't apply to HEAD; if that is | |
11671 | lazy then it was not readable, but watch it anyway. */ | |
5c44784c | 11672 | ; |
53a5351d | 11673 | else |
5c44784c JM |
11674 | { |
11675 | /* Ahh, memory we actually used! Check if we can cover | |
11676 | it with hardware watchpoints. */ | |
df407dfe | 11677 | struct type *vtype = check_typedef (value_type (v)); |
2e70b7b9 MS |
11678 | |
11679 | /* We only watch structs and arrays if user asked for it | |
11680 | explicitly, never if they just happen to appear in a | |
11681 | middle of some value chain. */ | |
11682 | if (v == head | |
11683 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT | |
11684 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
11685 | { | |
42ae5230 | 11686 | CORE_ADDR vaddr = value_address (v); |
e09342b5 TJB |
11687 | int len; |
11688 | int num_regs; | |
11689 | ||
a9634178 | 11690 | len = (target_exact_watchpoints |
e09342b5 TJB |
11691 | && is_scalar_type_recursive (vtype))? |
11692 | 1 : TYPE_LENGTH (value_type (v)); | |
2e70b7b9 | 11693 | |
e09342b5 TJB |
11694 | num_regs = target_region_ok_for_hw_watchpoint (vaddr, len); |
11695 | if (!num_regs) | |
2e70b7b9 MS |
11696 | return 0; |
11697 | else | |
e09342b5 | 11698 | found_memory_cnt += num_regs; |
2e70b7b9 | 11699 | } |
5c44784c | 11700 | } |
c5aa993b | 11701 | } |
5086187c AC |
11702 | else if (VALUE_LVAL (v) != not_lval |
11703 | && deprecated_value_modifiable (v) == 0) | |
38b6c3b3 | 11704 | return 0; /* These are values from the history (e.g., $1). */ |
5086187c | 11705 | else if (VALUE_LVAL (v) == lval_register) |
38b6c3b3 | 11706 | return 0; /* Cannot watch a register with a HW watchpoint. */ |
c906108c SS |
11707 | } |
11708 | ||
11709 | /* The expression itself looks suitable for using a hardware | |
11710 | watchpoint, but give the target machine a chance to reject it. */ | |
11711 | return found_memory_cnt; | |
11712 | } | |
11713 | ||
8b93c638 | 11714 | void |
84f4c1fe | 11715 | watch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11716 | { |
84f4c1fe | 11717 | watch_command_1 (arg, hw_write, from_tty, 0, internal); |
06a64a0b TT |
11718 | } |
11719 | ||
06a64a0b TT |
11720 | /* A helper function that looks for the "-location" argument and then |
11721 | calls watch_command_1. */ | |
11722 | ||
11723 | static void | |
11724 | watch_maybe_just_location (char *arg, int accessflag, int from_tty) | |
11725 | { | |
11726 | int just_location = 0; | |
11727 | ||
11728 | if (arg | |
11729 | && (check_for_argument (&arg, "-location", sizeof ("-location") - 1) | |
11730 | || check_for_argument (&arg, "-l", sizeof ("-l") - 1))) | |
11731 | { | |
e9cafbcc | 11732 | arg = skip_spaces (arg); |
06a64a0b TT |
11733 | just_location = 1; |
11734 | } | |
11735 | ||
84f4c1fe | 11736 | watch_command_1 (arg, accessflag, from_tty, just_location, 0); |
8b93c638 | 11737 | } |
8926118c | 11738 | |
c5aa993b | 11739 | static void |
fba45db2 | 11740 | watch_command (char *arg, int from_tty) |
c906108c | 11741 | { |
06a64a0b | 11742 | watch_maybe_just_location (arg, hw_write, from_tty); |
c906108c SS |
11743 | } |
11744 | ||
8b93c638 | 11745 | void |
84f4c1fe | 11746 | rwatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11747 | { |
84f4c1fe | 11748 | watch_command_1 (arg, hw_read, from_tty, 0, internal); |
8b93c638 | 11749 | } |
8926118c | 11750 | |
c5aa993b | 11751 | static void |
fba45db2 | 11752 | rwatch_command (char *arg, int from_tty) |
c906108c | 11753 | { |
06a64a0b | 11754 | watch_maybe_just_location (arg, hw_read, from_tty); |
c906108c SS |
11755 | } |
11756 | ||
8b93c638 | 11757 | void |
84f4c1fe | 11758 | awatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11759 | { |
84f4c1fe | 11760 | watch_command_1 (arg, hw_access, from_tty, 0, internal); |
8b93c638 | 11761 | } |
8926118c | 11762 | |
c5aa993b | 11763 | static void |
fba45db2 | 11764 | awatch_command (char *arg, int from_tty) |
c906108c | 11765 | { |
06a64a0b | 11766 | watch_maybe_just_location (arg, hw_access, from_tty); |
c906108c | 11767 | } |
c906108c | 11768 | \f |
c5aa993b | 11769 | |
43ff13b4 | 11770 | /* Helper routines for the until_command routine in infcmd.c. Here |
c906108c SS |
11771 | because it uses the mechanisms of breakpoints. */ |
11772 | ||
bfec99b2 PA |
11773 | struct until_break_command_continuation_args |
11774 | { | |
11775 | struct breakpoint *breakpoint; | |
11776 | struct breakpoint *breakpoint2; | |
186c406b | 11777 | int thread_num; |
bfec99b2 PA |
11778 | }; |
11779 | ||
43ff13b4 | 11780 | /* This function is called by fetch_inferior_event via the |
4a64f543 | 11781 | cmd_continuation pointer, to complete the until command. It takes |
43ff13b4 | 11782 | care of cleaning up the temporary breakpoints set up by the until |
4a64f543 | 11783 | command. */ |
c2c6d25f | 11784 | static void |
fa4cd53f | 11785 | until_break_command_continuation (void *arg, int err) |
43ff13b4 | 11786 | { |
bfec99b2 PA |
11787 | struct until_break_command_continuation_args *a = arg; |
11788 | ||
11789 | delete_breakpoint (a->breakpoint); | |
11790 | if (a->breakpoint2) | |
11791 | delete_breakpoint (a->breakpoint2); | |
186c406b | 11792 | delete_longjmp_breakpoint (a->thread_num); |
43ff13b4 JM |
11793 | } |
11794 | ||
c906108c | 11795 | void |
ae66c1fc | 11796 | until_break_command (char *arg, int from_tty, int anywhere) |
c906108c SS |
11797 | { |
11798 | struct symtabs_and_lines sals; | |
11799 | struct symtab_and_line sal; | |
8556afb4 PA |
11800 | struct frame_info *frame; |
11801 | struct gdbarch *frame_gdbarch; | |
11802 | struct frame_id stack_frame_id; | |
11803 | struct frame_id caller_frame_id; | |
c906108c | 11804 | struct breakpoint *breakpoint; |
f107f563 | 11805 | struct breakpoint *breakpoint2 = NULL; |
c906108c | 11806 | struct cleanup *old_chain; |
186c406b TT |
11807 | int thread; |
11808 | struct thread_info *tp; | |
c906108c | 11809 | |
70509625 | 11810 | clear_proceed_status (0); |
c906108c SS |
11811 | |
11812 | /* Set a breakpoint where the user wants it and at return from | |
4a64f543 | 11813 | this function. */ |
c5aa993b | 11814 | |
1bfeeb0f | 11815 | if (last_displayed_sal_is_valid ()) |
f8eba3c6 | 11816 | sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE, |
1bfeeb0f | 11817 | get_last_displayed_symtab (), |
f8eba3c6 | 11818 | get_last_displayed_line ()); |
c906108c | 11819 | else |
f8eba3c6 TT |
11820 | sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE, |
11821 | (struct symtab *) NULL, 0); | |
c5aa993b | 11822 | |
c906108c | 11823 | if (sals.nelts != 1) |
8a3fe4f8 | 11824 | error (_("Couldn't get information on specified line.")); |
c5aa993b | 11825 | |
c906108c | 11826 | sal = sals.sals[0]; |
4a64f543 | 11827 | xfree (sals.sals); /* malloc'd, so freed. */ |
c5aa993b | 11828 | |
c906108c | 11829 | if (*arg) |
8a3fe4f8 | 11830 | error (_("Junk at end of arguments.")); |
c5aa993b | 11831 | |
c906108c | 11832 | resolve_sal_pc (&sal); |
c5aa993b | 11833 | |
186c406b TT |
11834 | tp = inferior_thread (); |
11835 | thread = tp->num; | |
11836 | ||
883bc8d1 PA |
11837 | old_chain = make_cleanup (null_cleanup, NULL); |
11838 | ||
8556afb4 PA |
11839 | /* Note linespec handling above invalidates the frame chain. |
11840 | Installing a breakpoint also invalidates the frame chain (as it | |
11841 | may need to switch threads), so do any frame handling before | |
11842 | that. */ | |
11843 | ||
11844 | frame = get_selected_frame (NULL); | |
11845 | frame_gdbarch = get_frame_arch (frame); | |
11846 | stack_frame_id = get_stack_frame_id (frame); | |
11847 | caller_frame_id = frame_unwind_caller_id (frame); | |
883bc8d1 | 11848 | |
ae66c1fc EZ |
11849 | /* Keep within the current frame, or in frames called by the current |
11850 | one. */ | |
edb3359d | 11851 | |
883bc8d1 | 11852 | if (frame_id_p (caller_frame_id)) |
c906108c | 11853 | { |
883bc8d1 PA |
11854 | struct symtab_and_line sal2; |
11855 | ||
11856 | sal2 = find_pc_line (frame_unwind_caller_pc (frame), 0); | |
11857 | sal2.pc = frame_unwind_caller_pc (frame); | |
a6d9a66e | 11858 | breakpoint2 = set_momentary_breakpoint (frame_unwind_caller_arch (frame), |
883bc8d1 PA |
11859 | sal2, |
11860 | caller_frame_id, | |
f107f563 VP |
11861 | bp_until); |
11862 | make_cleanup_delete_breakpoint (breakpoint2); | |
186c406b | 11863 | |
883bc8d1 | 11864 | set_longjmp_breakpoint (tp, caller_frame_id); |
186c406b | 11865 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c906108c | 11866 | } |
c5aa993b | 11867 | |
c70a6932 JK |
11868 | /* set_momentary_breakpoint could invalidate FRAME. */ |
11869 | frame = NULL; | |
11870 | ||
883bc8d1 PA |
11871 | if (anywhere) |
11872 | /* If the user told us to continue until a specified location, | |
11873 | we don't specify a frame at which we need to stop. */ | |
11874 | breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, | |
11875 | null_frame_id, bp_until); | |
11876 | else | |
11877 | /* Otherwise, specify the selected frame, because we want to stop | |
11878 | only at the very same frame. */ | |
11879 | breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, | |
11880 | stack_frame_id, bp_until); | |
11881 | make_cleanup_delete_breakpoint (breakpoint); | |
11882 | ||
a493e3e2 | 11883 | proceed (-1, GDB_SIGNAL_DEFAULT, 0); |
f107f563 | 11884 | |
4a64f543 MS |
11885 | /* If we are running asynchronously, and proceed call above has |
11886 | actually managed to start the target, arrange for breakpoints to | |
11887 | be deleted when the target stops. Otherwise, we're already | |
11888 | stopped and delete breakpoints via cleanup chain. */ | |
f107f563 | 11889 | |
8ea051c5 | 11890 | if (target_can_async_p () && is_running (inferior_ptid)) |
f107f563 | 11891 | { |
bfec99b2 PA |
11892 | struct until_break_command_continuation_args *args; |
11893 | args = xmalloc (sizeof (*args)); | |
f107f563 | 11894 | |
bfec99b2 PA |
11895 | args->breakpoint = breakpoint; |
11896 | args->breakpoint2 = breakpoint2; | |
186c406b | 11897 | args->thread_num = thread; |
f107f563 VP |
11898 | |
11899 | discard_cleanups (old_chain); | |
95e54da7 PA |
11900 | add_continuation (inferior_thread (), |
11901 | until_break_command_continuation, args, | |
604ead4a | 11902 | xfree); |
f107f563 VP |
11903 | } |
11904 | else | |
c5aa993b | 11905 | do_cleanups (old_chain); |
c906108c | 11906 | } |
ae66c1fc | 11907 | |
c906108c SS |
11908 | /* This function attempts to parse an optional "if <cond>" clause |
11909 | from the arg string. If one is not found, it returns NULL. | |
c5aa993b | 11910 | |
c906108c SS |
11911 | Else, it returns a pointer to the condition string. (It does not |
11912 | attempt to evaluate the string against a particular block.) And, | |
11913 | it updates arg to point to the first character following the parsed | |
4a64f543 | 11914 | if clause in the arg string. */ |
53a5351d | 11915 | |
916703c0 | 11916 | char * |
fba45db2 | 11917 | ep_parse_optional_if_clause (char **arg) |
c906108c | 11918 | { |
c5aa993b JM |
11919 | char *cond_string; |
11920 | ||
11921 | if (((*arg)[0] != 'i') || ((*arg)[1] != 'f') || !isspace ((*arg)[2])) | |
c906108c | 11922 | return NULL; |
c5aa993b | 11923 | |
4a64f543 | 11924 | /* Skip the "if" keyword. */ |
c906108c | 11925 | (*arg) += 2; |
c5aa993b | 11926 | |
c906108c | 11927 | /* Skip any extra leading whitespace, and record the start of the |
4a64f543 | 11928 | condition string. */ |
e9cafbcc | 11929 | *arg = skip_spaces (*arg); |
c906108c | 11930 | cond_string = *arg; |
c5aa993b | 11931 | |
4a64f543 MS |
11932 | /* Assume that the condition occupies the remainder of the arg |
11933 | string. */ | |
c906108c | 11934 | (*arg) += strlen (cond_string); |
c5aa993b | 11935 | |
c906108c SS |
11936 | return cond_string; |
11937 | } | |
c5aa993b | 11938 | |
c906108c SS |
11939 | /* Commands to deal with catching events, such as signals, exceptions, |
11940 | process start/exit, etc. */ | |
c5aa993b JM |
11941 | |
11942 | typedef enum | |
11943 | { | |
44feb3ce TT |
11944 | catch_fork_temporary, catch_vfork_temporary, |
11945 | catch_fork_permanent, catch_vfork_permanent | |
c5aa993b JM |
11946 | } |
11947 | catch_fork_kind; | |
11948 | ||
c906108c | 11949 | static void |
cc59ec59 MS |
11950 | catch_fork_command_1 (char *arg, int from_tty, |
11951 | struct cmd_list_element *command) | |
c906108c | 11952 | { |
a6d9a66e | 11953 | struct gdbarch *gdbarch = get_current_arch (); |
c5aa993b | 11954 | char *cond_string = NULL; |
44feb3ce TT |
11955 | catch_fork_kind fork_kind; |
11956 | int tempflag; | |
11957 | ||
11958 | fork_kind = (catch_fork_kind) (uintptr_t) get_cmd_context (command); | |
11959 | tempflag = (fork_kind == catch_fork_temporary | |
11960 | || fork_kind == catch_vfork_temporary); | |
c5aa993b | 11961 | |
44feb3ce TT |
11962 | if (!arg) |
11963 | arg = ""; | |
e9cafbcc | 11964 | arg = skip_spaces (arg); |
c5aa993b | 11965 | |
c906108c | 11966 | /* The allowed syntax is: |
c5aa993b JM |
11967 | catch [v]fork |
11968 | catch [v]fork if <cond> | |
11969 | ||
4a64f543 | 11970 | First, check if there's an if clause. */ |
c906108c | 11971 | cond_string = ep_parse_optional_if_clause (&arg); |
c5aa993b | 11972 | |
c906108c | 11973 | if ((*arg != '\0') && !isspace (*arg)) |
8a3fe4f8 | 11974 | error (_("Junk at end of arguments.")); |
c5aa993b | 11975 | |
c906108c | 11976 | /* If this target supports it, create a fork or vfork catchpoint |
4a64f543 | 11977 | and enable reporting of such events. */ |
c5aa993b JM |
11978 | switch (fork_kind) |
11979 | { | |
44feb3ce TT |
11980 | case catch_fork_temporary: |
11981 | case catch_fork_permanent: | |
a6d9a66e | 11982 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11983 | &catch_fork_breakpoint_ops); |
c906108c | 11984 | break; |
44feb3ce TT |
11985 | case catch_vfork_temporary: |
11986 | case catch_vfork_permanent: | |
a6d9a66e | 11987 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11988 | &catch_vfork_breakpoint_ops); |
c906108c | 11989 | break; |
c5aa993b | 11990 | default: |
8a3fe4f8 | 11991 | error (_("unsupported or unknown fork kind; cannot catch it")); |
c906108c | 11992 | break; |
c5aa993b | 11993 | } |
c906108c SS |
11994 | } |
11995 | ||
11996 | static void | |
cc59ec59 MS |
11997 | catch_exec_command_1 (char *arg, int from_tty, |
11998 | struct cmd_list_element *command) | |
c906108c | 11999 | { |
b4d90040 | 12000 | struct exec_catchpoint *c; |
a6d9a66e | 12001 | struct gdbarch *gdbarch = get_current_arch (); |
44feb3ce | 12002 | int tempflag; |
c5aa993b | 12003 | char *cond_string = NULL; |
c906108c | 12004 | |
44feb3ce TT |
12005 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; |
12006 | ||
12007 | if (!arg) | |
12008 | arg = ""; | |
e9cafbcc | 12009 | arg = skip_spaces (arg); |
c906108c SS |
12010 | |
12011 | /* The allowed syntax is: | |
c5aa993b JM |
12012 | catch exec |
12013 | catch exec if <cond> | |
c906108c | 12014 | |
4a64f543 | 12015 | First, check if there's an if clause. */ |
c906108c SS |
12016 | cond_string = ep_parse_optional_if_clause (&arg); |
12017 | ||
12018 | if ((*arg != '\0') && !isspace (*arg)) | |
8a3fe4f8 | 12019 | error (_("Junk at end of arguments.")); |
c906108c | 12020 | |
b4d90040 PA |
12021 | c = XNEW (struct exec_catchpoint); |
12022 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, | |
12023 | &catch_exec_breakpoint_ops); | |
12024 | c->exec_pathname = NULL; | |
12025 | ||
3ea46bff | 12026 | install_breakpoint (0, &c->base, 1); |
c906108c | 12027 | } |
c5aa993b | 12028 | |
9ac4176b | 12029 | void |
28010a5d PA |
12030 | init_ada_exception_breakpoint (struct breakpoint *b, |
12031 | struct gdbarch *gdbarch, | |
12032 | struct symtab_and_line sal, | |
12033 | char *addr_string, | |
c0a91b2b | 12034 | const struct breakpoint_ops *ops, |
28010a5d | 12035 | int tempflag, |
349774ef | 12036 | int enabled, |
28010a5d | 12037 | int from_tty) |
f7f9143b | 12038 | { |
f7f9143b JB |
12039 | if (from_tty) |
12040 | { | |
5af949e3 UW |
12041 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); |
12042 | if (!loc_gdbarch) | |
12043 | loc_gdbarch = gdbarch; | |
12044 | ||
6c95b8df PA |
12045 | describe_other_breakpoints (loc_gdbarch, |
12046 | sal.pspace, sal.pc, sal.section, -1); | |
f7f9143b JB |
12047 | /* FIXME: brobecker/2006-12-28: Actually, re-implement a special |
12048 | version for exception catchpoints, because two catchpoints | |
12049 | used for different exception names will use the same address. | |
12050 | In this case, a "breakpoint ... also set at..." warning is | |
4a64f543 | 12051 | unproductive. Besides, the warning phrasing is also a bit |
e5dd4106 | 12052 | inappropriate, we should use the word catchpoint, and tell |
f7f9143b JB |
12053 | the user what type of catchpoint it is. The above is good |
12054 | enough for now, though. */ | |
12055 | } | |
12056 | ||
28010a5d | 12057 | init_raw_breakpoint (b, gdbarch, sal, bp_breakpoint, ops); |
f7f9143b | 12058 | |
349774ef | 12059 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
f7f9143b | 12060 | b->disposition = tempflag ? disp_del : disp_donttouch; |
f7f9143b JB |
12061 | b->addr_string = addr_string; |
12062 | b->language = language_ada; | |
f7f9143b JB |
12063 | } |
12064 | ||
a96d9b2e SDJ |
12065 | /* Splits the argument using space as delimiter. Returns an xmalloc'd |
12066 | filter list, or NULL if no filtering is required. */ | |
12067 | static VEC(int) * | |
12068 | catch_syscall_split_args (char *arg) | |
12069 | { | |
12070 | VEC(int) *result = NULL; | |
29d0bb3d | 12071 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (int), &result); |
a96d9b2e SDJ |
12072 | |
12073 | while (*arg != '\0') | |
12074 | { | |
12075 | int i, syscall_number; | |
12076 | char *endptr; | |
12077 | char cur_name[128]; | |
12078 | struct syscall s; | |
12079 | ||
12080 | /* Skip whitespace. */ | |
529480d0 | 12081 | arg = skip_spaces (arg); |
a96d9b2e SDJ |
12082 | |
12083 | for (i = 0; i < 127 && arg[i] && !isspace (arg[i]); ++i) | |
12084 | cur_name[i] = arg[i]; | |
12085 | cur_name[i] = '\0'; | |
12086 | arg += i; | |
12087 | ||
12088 | /* Check if the user provided a syscall name or a number. */ | |
12089 | syscall_number = (int) strtol (cur_name, &endptr, 0); | |
12090 | if (*endptr == '\0') | |
bccd0dd2 | 12091 | get_syscall_by_number (syscall_number, &s); |
a96d9b2e SDJ |
12092 | else |
12093 | { | |
12094 | /* We have a name. Let's check if it's valid and convert it | |
12095 | to a number. */ | |
12096 | get_syscall_by_name (cur_name, &s); | |
12097 | ||
12098 | if (s.number == UNKNOWN_SYSCALL) | |
4a64f543 MS |
12099 | /* Here we have to issue an error instead of a warning, |
12100 | because GDB cannot do anything useful if there's no | |
12101 | syscall number to be caught. */ | |
a96d9b2e SDJ |
12102 | error (_("Unknown syscall name '%s'."), cur_name); |
12103 | } | |
12104 | ||
12105 | /* Ok, it's valid. */ | |
12106 | VEC_safe_push (int, result, s.number); | |
12107 | } | |
12108 | ||
12109 | discard_cleanups (cleanup); | |
12110 | return result; | |
12111 | } | |
12112 | ||
12113 | /* Implement the "catch syscall" command. */ | |
12114 | ||
12115 | static void | |
cc59ec59 MS |
12116 | catch_syscall_command_1 (char *arg, int from_tty, |
12117 | struct cmd_list_element *command) | |
a96d9b2e SDJ |
12118 | { |
12119 | int tempflag; | |
12120 | VEC(int) *filter; | |
12121 | struct syscall s; | |
12122 | struct gdbarch *gdbarch = get_current_arch (); | |
12123 | ||
12124 | /* Checking if the feature if supported. */ | |
12125 | if (gdbarch_get_syscall_number_p (gdbarch) == 0) | |
12126 | error (_("The feature 'catch syscall' is not supported on \ | |
ea666128 | 12127 | this architecture yet.")); |
a96d9b2e SDJ |
12128 | |
12129 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; | |
12130 | ||
e9cafbcc | 12131 | arg = skip_spaces (arg); |
a96d9b2e SDJ |
12132 | |
12133 | /* We need to do this first "dummy" translation in order | |
12134 | to get the syscall XML file loaded or, most important, | |
12135 | to display a warning to the user if there's no XML file | |
12136 | for his/her architecture. */ | |
12137 | get_syscall_by_number (0, &s); | |
12138 | ||
12139 | /* The allowed syntax is: | |
12140 | catch syscall | |
12141 | catch syscall <name | number> [<name | number> ... <name | number>] | |
12142 | ||
12143 | Let's check if there's a syscall name. */ | |
12144 | ||
12145 | if (arg != NULL) | |
12146 | filter = catch_syscall_split_args (arg); | |
12147 | else | |
12148 | filter = NULL; | |
12149 | ||
12150 | create_syscall_event_catchpoint (tempflag, filter, | |
12151 | &catch_syscall_breakpoint_ops); | |
12152 | } | |
12153 | ||
c906108c | 12154 | static void |
fba45db2 | 12155 | catch_command (char *arg, int from_tty) |
c906108c | 12156 | { |
44feb3ce | 12157 | error (_("Catch requires an event name.")); |
c906108c SS |
12158 | } |
12159 | \f | |
12160 | ||
12161 | static void | |
fba45db2 | 12162 | tcatch_command (char *arg, int from_tty) |
c906108c | 12163 | { |
44feb3ce | 12164 | error (_("Catch requires an event name.")); |
c906108c SS |
12165 | } |
12166 | ||
8a2c437b TT |
12167 | /* A qsort comparison function that sorts breakpoints in order. */ |
12168 | ||
12169 | static int | |
12170 | compare_breakpoints (const void *a, const void *b) | |
12171 | { | |
12172 | const breakpoint_p *ba = a; | |
12173 | uintptr_t ua = (uintptr_t) *ba; | |
12174 | const breakpoint_p *bb = b; | |
12175 | uintptr_t ub = (uintptr_t) *bb; | |
12176 | ||
12177 | if ((*ba)->number < (*bb)->number) | |
12178 | return -1; | |
12179 | else if ((*ba)->number > (*bb)->number) | |
12180 | return 1; | |
12181 | ||
12182 | /* Now sort by address, in case we see, e..g, two breakpoints with | |
12183 | the number 0. */ | |
12184 | if (ua < ub) | |
12185 | return -1; | |
94b0e70d | 12186 | return ua > ub ? 1 : 0; |
8a2c437b TT |
12187 | } |
12188 | ||
80f8a6eb | 12189 | /* Delete breakpoints by address or line. */ |
c906108c SS |
12190 | |
12191 | static void | |
fba45db2 | 12192 | clear_command (char *arg, int from_tty) |
c906108c | 12193 | { |
8a2c437b | 12194 | struct breakpoint *b, *prev; |
d6e956e5 VP |
12195 | VEC(breakpoint_p) *found = 0; |
12196 | int ix; | |
c906108c SS |
12197 | int default_match; |
12198 | struct symtabs_and_lines sals; | |
12199 | struct symtab_and_line sal; | |
c906108c | 12200 | int i; |
8a2c437b | 12201 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
c906108c SS |
12202 | |
12203 | if (arg) | |
12204 | { | |
39cf75f7 DE |
12205 | sals = decode_line_with_current_source (arg, |
12206 | (DECODE_LINE_FUNFIRSTLINE | |
12207 | | DECODE_LINE_LIST_MODE)); | |
cf4ded82 | 12208 | make_cleanup (xfree, sals.sals); |
c906108c SS |
12209 | default_match = 0; |
12210 | } | |
12211 | else | |
12212 | { | |
c5aa993b | 12213 | sals.sals = (struct symtab_and_line *) |
c906108c | 12214 | xmalloc (sizeof (struct symtab_and_line)); |
80f8a6eb | 12215 | make_cleanup (xfree, sals.sals); |
4a64f543 | 12216 | init_sal (&sal); /* Initialize to zeroes. */ |
1bfeeb0f JL |
12217 | |
12218 | /* Set sal's line, symtab, pc, and pspace to the values | |
12219 | corresponding to the last call to print_frame_info. If the | |
12220 | codepoint is not valid, this will set all the fields to 0. */ | |
12221 | get_last_displayed_sal (&sal); | |
c906108c | 12222 | if (sal.symtab == 0) |
8a3fe4f8 | 12223 | error (_("No source file specified.")); |
c906108c SS |
12224 | |
12225 | sals.sals[0] = sal; | |
12226 | sals.nelts = 1; | |
12227 | ||
12228 | default_match = 1; | |
12229 | } | |
12230 | ||
4a64f543 MS |
12231 | /* We don't call resolve_sal_pc here. That's not as bad as it |
12232 | seems, because all existing breakpoints typically have both | |
12233 | file/line and pc set. So, if clear is given file/line, we can | |
12234 | match this to existing breakpoint without obtaining pc at all. | |
ed0616c6 VP |
12235 | |
12236 | We only support clearing given the address explicitly | |
12237 | present in breakpoint table. Say, we've set breakpoint | |
4a64f543 | 12238 | at file:line. There were several PC values for that file:line, |
ed0616c6 | 12239 | due to optimization, all in one block. |
4a64f543 MS |
12240 | |
12241 | We've picked one PC value. If "clear" is issued with another | |
ed0616c6 VP |
12242 | PC corresponding to the same file:line, the breakpoint won't |
12243 | be cleared. We probably can still clear the breakpoint, but | |
12244 | since the other PC value is never presented to user, user | |
12245 | can only find it by guessing, and it does not seem important | |
12246 | to support that. */ | |
12247 | ||
4a64f543 MS |
12248 | /* For each line spec given, delete bps which correspond to it. Do |
12249 | it in two passes, solely to preserve the current behavior that | |
12250 | from_tty is forced true if we delete more than one | |
12251 | breakpoint. */ | |
c906108c | 12252 | |
80f8a6eb | 12253 | found = NULL; |
8a2c437b | 12254 | make_cleanup (VEC_cleanup (breakpoint_p), &found); |
c906108c SS |
12255 | for (i = 0; i < sals.nelts; i++) |
12256 | { | |
05cba821 JK |
12257 | const char *sal_fullname; |
12258 | ||
c906108c | 12259 | /* If exact pc given, clear bpts at that pc. |
c5aa993b JM |
12260 | If line given (pc == 0), clear all bpts on specified line. |
12261 | If defaulting, clear all bpts on default line | |
c906108c | 12262 | or at default pc. |
c5aa993b JM |
12263 | |
12264 | defaulting sal.pc != 0 tests to do | |
12265 | ||
12266 | 0 1 pc | |
12267 | 1 1 pc _and_ line | |
12268 | 0 0 line | |
12269 | 1 0 <can't happen> */ | |
c906108c SS |
12270 | |
12271 | sal = sals.sals[i]; | |
05cba821 JK |
12272 | sal_fullname = (sal.symtab == NULL |
12273 | ? NULL : symtab_to_fullname (sal.symtab)); | |
c906108c | 12274 | |
4a64f543 | 12275 | /* Find all matching breakpoints and add them to 'found'. */ |
d6e956e5 | 12276 | ALL_BREAKPOINTS (b) |
c5aa993b | 12277 | { |
0d381245 | 12278 | int match = 0; |
4a64f543 | 12279 | /* Are we going to delete b? */ |
cc60f2e3 | 12280 | if (b->type != bp_none && !is_watchpoint (b)) |
0d381245 VP |
12281 | { |
12282 | struct bp_location *loc = b->loc; | |
12283 | for (; loc; loc = loc->next) | |
12284 | { | |
f8eba3c6 TT |
12285 | /* If the user specified file:line, don't allow a PC |
12286 | match. This matches historical gdb behavior. */ | |
12287 | int pc_match = (!sal.explicit_line | |
12288 | && sal.pc | |
12289 | && (loc->pspace == sal.pspace) | |
12290 | && (loc->address == sal.pc) | |
12291 | && (!section_is_overlay (loc->section) | |
12292 | || loc->section == sal.section)); | |
4aac40c8 TT |
12293 | int line_match = 0; |
12294 | ||
12295 | if ((default_match || sal.explicit_line) | |
2f202fde | 12296 | && loc->symtab != NULL |
05cba821 | 12297 | && sal_fullname != NULL |
4aac40c8 | 12298 | && sal.pspace == loc->pspace |
05cba821 JK |
12299 | && loc->line_number == sal.line |
12300 | && filename_cmp (symtab_to_fullname (loc->symtab), | |
12301 | sal_fullname) == 0) | |
12302 | line_match = 1; | |
4aac40c8 | 12303 | |
0d381245 VP |
12304 | if (pc_match || line_match) |
12305 | { | |
12306 | match = 1; | |
12307 | break; | |
12308 | } | |
12309 | } | |
12310 | } | |
12311 | ||
12312 | if (match) | |
d6e956e5 | 12313 | VEC_safe_push(breakpoint_p, found, b); |
c906108c | 12314 | } |
80f8a6eb | 12315 | } |
8a2c437b | 12316 | |
80f8a6eb | 12317 | /* Now go thru the 'found' chain and delete them. */ |
d6e956e5 | 12318 | if (VEC_empty(breakpoint_p, found)) |
80f8a6eb MS |
12319 | { |
12320 | if (arg) | |
8a3fe4f8 | 12321 | error (_("No breakpoint at %s."), arg); |
80f8a6eb | 12322 | else |
8a3fe4f8 | 12323 | error (_("No breakpoint at this line.")); |
80f8a6eb | 12324 | } |
c906108c | 12325 | |
8a2c437b TT |
12326 | /* Remove duplicates from the vec. */ |
12327 | qsort (VEC_address (breakpoint_p, found), | |
12328 | VEC_length (breakpoint_p, found), | |
12329 | sizeof (breakpoint_p), | |
12330 | compare_breakpoints); | |
12331 | prev = VEC_index (breakpoint_p, found, 0); | |
12332 | for (ix = 1; VEC_iterate (breakpoint_p, found, ix, b); ++ix) | |
12333 | { | |
12334 | if (b == prev) | |
12335 | { | |
12336 | VEC_ordered_remove (breakpoint_p, found, ix); | |
12337 | --ix; | |
12338 | } | |
12339 | } | |
12340 | ||
d6e956e5 | 12341 | if (VEC_length(breakpoint_p, found) > 1) |
4a64f543 | 12342 | from_tty = 1; /* Always report if deleted more than one. */ |
80f8a6eb | 12343 | if (from_tty) |
a3f17187 | 12344 | { |
d6e956e5 | 12345 | if (VEC_length(breakpoint_p, found) == 1) |
a3f17187 AC |
12346 | printf_unfiltered (_("Deleted breakpoint ")); |
12347 | else | |
12348 | printf_unfiltered (_("Deleted breakpoints ")); | |
12349 | } | |
d6e956e5 VP |
12350 | |
12351 | for (ix = 0; VEC_iterate(breakpoint_p, found, ix, b); ix++) | |
80f8a6eb | 12352 | { |
c5aa993b | 12353 | if (from_tty) |
d6e956e5 VP |
12354 | printf_unfiltered ("%d ", b->number); |
12355 | delete_breakpoint (b); | |
c906108c | 12356 | } |
80f8a6eb MS |
12357 | if (from_tty) |
12358 | putchar_unfiltered ('\n'); | |
8a2c437b TT |
12359 | |
12360 | do_cleanups (cleanups); | |
c906108c SS |
12361 | } |
12362 | \f | |
12363 | /* Delete breakpoint in BS if they are `delete' breakpoints and | |
12364 | all breakpoints that are marked for deletion, whether hit or not. | |
12365 | This is called after any breakpoint is hit, or after errors. */ | |
12366 | ||
12367 | void | |
fba45db2 | 12368 | breakpoint_auto_delete (bpstat bs) |
c906108c | 12369 | { |
35df4500 | 12370 | struct breakpoint *b, *b_tmp; |
c906108c SS |
12371 | |
12372 | for (; bs; bs = bs->next) | |
f431efe5 PA |
12373 | if (bs->breakpoint_at |
12374 | && bs->breakpoint_at->disposition == disp_del | |
c906108c | 12375 | && bs->stop) |
f431efe5 | 12376 | delete_breakpoint (bs->breakpoint_at); |
c906108c | 12377 | |
35df4500 | 12378 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 12379 | { |
b5de0fa7 | 12380 | if (b->disposition == disp_del_at_next_stop) |
c5aa993b JM |
12381 | delete_breakpoint (b); |
12382 | } | |
c906108c SS |
12383 | } |
12384 | ||
4a64f543 MS |
12385 | /* A comparison function for bp_location AP and BP being interfaced to |
12386 | qsort. Sort elements primarily by their ADDRESS (no matter what | |
12387 | does breakpoint_address_is_meaningful say for its OWNER), | |
12388 | secondarily by ordering first bp_permanent OWNERed elements and | |
12389 | terciarily just ensuring the array is sorted stable way despite | |
e5dd4106 | 12390 | qsort being an unstable algorithm. */ |
876fa593 JK |
12391 | |
12392 | static int | |
494cfb0f | 12393 | bp_location_compare (const void *ap, const void *bp) |
876fa593 | 12394 | { |
494cfb0f JK |
12395 | struct bp_location *a = *(void **) ap; |
12396 | struct bp_location *b = *(void **) bp; | |
2bdf28a0 | 12397 | /* A and B come from existing breakpoints having non-NULL OWNER. */ |
876fa593 JK |
12398 | int a_perm = a->owner->enable_state == bp_permanent; |
12399 | int b_perm = b->owner->enable_state == bp_permanent; | |
12400 | ||
12401 | if (a->address != b->address) | |
12402 | return (a->address > b->address) - (a->address < b->address); | |
12403 | ||
dea2aa5f LM |
12404 | /* Sort locations at the same address by their pspace number, keeping |
12405 | locations of the same inferior (in a multi-inferior environment) | |
12406 | grouped. */ | |
12407 | ||
12408 | if (a->pspace->num != b->pspace->num) | |
12409 | return ((a->pspace->num > b->pspace->num) | |
12410 | - (a->pspace->num < b->pspace->num)); | |
12411 | ||
876fa593 JK |
12412 | /* Sort permanent breakpoints first. */ |
12413 | if (a_perm != b_perm) | |
12414 | return (a_perm < b_perm) - (a_perm > b_perm); | |
12415 | ||
c56a97f9 JK |
12416 | /* Make the internal GDB representation stable across GDB runs |
12417 | where A and B memory inside GDB can differ. Breakpoint locations of | |
12418 | the same type at the same address can be sorted in arbitrary order. */ | |
876fa593 JK |
12419 | |
12420 | if (a->owner->number != b->owner->number) | |
c56a97f9 JK |
12421 | return ((a->owner->number > b->owner->number) |
12422 | - (a->owner->number < b->owner->number)); | |
876fa593 JK |
12423 | |
12424 | return (a > b) - (a < b); | |
12425 | } | |
12426 | ||
876fa593 | 12427 | /* Set bp_location_placed_address_before_address_max and |
4a64f543 MS |
12428 | bp_location_shadow_len_after_address_max according to the current |
12429 | content of the bp_location array. */ | |
f7545552 TT |
12430 | |
12431 | static void | |
876fa593 | 12432 | bp_location_target_extensions_update (void) |
f7545552 | 12433 | { |
876fa593 JK |
12434 | struct bp_location *bl, **blp_tmp; |
12435 | ||
12436 | bp_location_placed_address_before_address_max = 0; | |
12437 | bp_location_shadow_len_after_address_max = 0; | |
12438 | ||
12439 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
12440 | { | |
12441 | CORE_ADDR start, end, addr; | |
12442 | ||
12443 | if (!bp_location_has_shadow (bl)) | |
12444 | continue; | |
12445 | ||
12446 | start = bl->target_info.placed_address; | |
12447 | end = start + bl->target_info.shadow_len; | |
12448 | ||
12449 | gdb_assert (bl->address >= start); | |
12450 | addr = bl->address - start; | |
12451 | if (addr > bp_location_placed_address_before_address_max) | |
12452 | bp_location_placed_address_before_address_max = addr; | |
12453 | ||
12454 | /* Zero SHADOW_LEN would not pass bp_location_has_shadow. */ | |
12455 | ||
12456 | gdb_assert (bl->address < end); | |
12457 | addr = end - bl->address; | |
12458 | if (addr > bp_location_shadow_len_after_address_max) | |
12459 | bp_location_shadow_len_after_address_max = addr; | |
12460 | } | |
f7545552 TT |
12461 | } |
12462 | ||
1e4d1764 YQ |
12463 | /* Download tracepoint locations if they haven't been. */ |
12464 | ||
12465 | static void | |
12466 | download_tracepoint_locations (void) | |
12467 | { | |
7ed2c994 | 12468 | struct breakpoint *b; |
1e4d1764 YQ |
12469 | struct cleanup *old_chain; |
12470 | ||
12471 | if (!target_can_download_tracepoint ()) | |
12472 | return; | |
12473 | ||
12474 | old_chain = save_current_space_and_thread (); | |
12475 | ||
7ed2c994 | 12476 | ALL_TRACEPOINTS (b) |
1e4d1764 | 12477 | { |
7ed2c994 | 12478 | struct bp_location *bl; |
1e4d1764 | 12479 | struct tracepoint *t; |
f2a8bc8a | 12480 | int bp_location_downloaded = 0; |
1e4d1764 | 12481 | |
7ed2c994 | 12482 | if ((b->type == bp_fast_tracepoint |
1e4d1764 YQ |
12483 | ? !may_insert_fast_tracepoints |
12484 | : !may_insert_tracepoints)) | |
12485 | continue; | |
12486 | ||
7ed2c994 YQ |
12487 | for (bl = b->loc; bl; bl = bl->next) |
12488 | { | |
12489 | /* In tracepoint, locations are _never_ duplicated, so | |
12490 | should_be_inserted is equivalent to | |
12491 | unduplicated_should_be_inserted. */ | |
12492 | if (!should_be_inserted (bl) || bl->inserted) | |
12493 | continue; | |
1e4d1764 | 12494 | |
7ed2c994 | 12495 | switch_to_program_space_and_thread (bl->pspace); |
1e4d1764 | 12496 | |
7ed2c994 | 12497 | target_download_tracepoint (bl); |
1e4d1764 | 12498 | |
7ed2c994 | 12499 | bl->inserted = 1; |
f2a8bc8a | 12500 | bp_location_downloaded = 1; |
7ed2c994 YQ |
12501 | } |
12502 | t = (struct tracepoint *) b; | |
12503 | t->number_on_target = b->number; | |
f2a8bc8a YQ |
12504 | if (bp_location_downloaded) |
12505 | observer_notify_breakpoint_modified (b); | |
1e4d1764 YQ |
12506 | } |
12507 | ||
12508 | do_cleanups (old_chain); | |
12509 | } | |
12510 | ||
934709f0 PW |
12511 | /* Swap the insertion/duplication state between two locations. */ |
12512 | ||
12513 | static void | |
12514 | swap_insertion (struct bp_location *left, struct bp_location *right) | |
12515 | { | |
12516 | const int left_inserted = left->inserted; | |
12517 | const int left_duplicate = left->duplicate; | |
b775012e | 12518 | const int left_needs_update = left->needs_update; |
934709f0 PW |
12519 | const struct bp_target_info left_target_info = left->target_info; |
12520 | ||
1e4d1764 YQ |
12521 | /* Locations of tracepoints can never be duplicated. */ |
12522 | if (is_tracepoint (left->owner)) | |
12523 | gdb_assert (!left->duplicate); | |
12524 | if (is_tracepoint (right->owner)) | |
12525 | gdb_assert (!right->duplicate); | |
12526 | ||
934709f0 PW |
12527 | left->inserted = right->inserted; |
12528 | left->duplicate = right->duplicate; | |
b775012e | 12529 | left->needs_update = right->needs_update; |
934709f0 PW |
12530 | left->target_info = right->target_info; |
12531 | right->inserted = left_inserted; | |
12532 | right->duplicate = left_duplicate; | |
b775012e | 12533 | right->needs_update = left_needs_update; |
934709f0 PW |
12534 | right->target_info = left_target_info; |
12535 | } | |
12536 | ||
b775012e LM |
12537 | /* Force the re-insertion of the locations at ADDRESS. This is called |
12538 | once a new/deleted/modified duplicate location is found and we are evaluating | |
12539 | conditions on the target's side. Such conditions need to be updated on | |
12540 | the target. */ | |
12541 | ||
12542 | static void | |
12543 | force_breakpoint_reinsertion (struct bp_location *bl) | |
12544 | { | |
12545 | struct bp_location **locp = NULL, **loc2p; | |
12546 | struct bp_location *loc; | |
12547 | CORE_ADDR address = 0; | |
12548 | int pspace_num; | |
12549 | ||
12550 | address = bl->address; | |
12551 | pspace_num = bl->pspace->num; | |
12552 | ||
12553 | /* This is only meaningful if the target is | |
12554 | evaluating conditions and if the user has | |
12555 | opted for condition evaluation on the target's | |
12556 | side. */ | |
12557 | if (gdb_evaluates_breakpoint_condition_p () | |
12558 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
12559 | return; | |
12560 | ||
12561 | /* Flag all breakpoint locations with this address and | |
12562 | the same program space as the location | |
12563 | as "its condition has changed". We need to | |
12564 | update the conditions on the target's side. */ | |
12565 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, address) | |
12566 | { | |
12567 | loc = *loc2p; | |
12568 | ||
12569 | if (!is_breakpoint (loc->owner) | |
12570 | || pspace_num != loc->pspace->num) | |
12571 | continue; | |
12572 | ||
12573 | /* Flag the location appropriately. We use a different state to | |
12574 | let everyone know that we already updated the set of locations | |
12575 | with addr bl->address and program space bl->pspace. This is so | |
12576 | we don't have to keep calling these functions just to mark locations | |
12577 | that have already been marked. */ | |
12578 | loc->condition_changed = condition_updated; | |
12579 | ||
12580 | /* Free the agent expression bytecode as well. We will compute | |
12581 | it later on. */ | |
12582 | if (loc->cond_bytecode) | |
12583 | { | |
12584 | free_agent_expr (loc->cond_bytecode); | |
12585 | loc->cond_bytecode = NULL; | |
12586 | } | |
12587 | } | |
12588 | } | |
44702360 PA |
12589 | /* Called whether new breakpoints are created, or existing breakpoints |
12590 | deleted, to update the global location list and recompute which | |
12591 | locations are duplicate of which. | |
b775012e | 12592 | |
04086b45 PA |
12593 | The INSERT_MODE flag determines whether locations may not, may, or |
12594 | shall be inserted now. See 'enum ugll_insert_mode' for more | |
12595 | info. */ | |
b60e7edf | 12596 | |
0d381245 | 12597 | static void |
44702360 | 12598 | update_global_location_list (enum ugll_insert_mode insert_mode) |
0d381245 | 12599 | { |
74960c60 | 12600 | struct breakpoint *b; |
876fa593 | 12601 | struct bp_location **locp, *loc; |
f7545552 | 12602 | struct cleanup *cleanups; |
b775012e LM |
12603 | /* Last breakpoint location address that was marked for update. */ |
12604 | CORE_ADDR last_addr = 0; | |
12605 | /* Last breakpoint location program space that was marked for update. */ | |
12606 | int last_pspace_num = -1; | |
f7545552 | 12607 | |
2d134ed3 PA |
12608 | /* Used in the duplicates detection below. When iterating over all |
12609 | bp_locations, points to the first bp_location of a given address. | |
12610 | Breakpoints and watchpoints of different types are never | |
12611 | duplicates of each other. Keep one pointer for each type of | |
12612 | breakpoint/watchpoint, so we only need to loop over all locations | |
12613 | once. */ | |
12614 | struct bp_location *bp_loc_first; /* breakpoint */ | |
12615 | struct bp_location *wp_loc_first; /* hardware watchpoint */ | |
12616 | struct bp_location *awp_loc_first; /* access watchpoint */ | |
12617 | struct bp_location *rwp_loc_first; /* read watchpoint */ | |
876fa593 | 12618 | |
4a64f543 MS |
12619 | /* Saved former bp_location array which we compare against the newly |
12620 | built bp_location from the current state of ALL_BREAKPOINTS. */ | |
876fa593 JK |
12621 | struct bp_location **old_location, **old_locp; |
12622 | unsigned old_location_count; | |
12623 | ||
12624 | old_location = bp_location; | |
12625 | old_location_count = bp_location_count; | |
12626 | bp_location = NULL; | |
12627 | bp_location_count = 0; | |
12628 | cleanups = make_cleanup (xfree, old_location); | |
0d381245 | 12629 | |
74960c60 | 12630 | ALL_BREAKPOINTS (b) |
876fa593 JK |
12631 | for (loc = b->loc; loc; loc = loc->next) |
12632 | bp_location_count++; | |
12633 | ||
12634 | bp_location = xmalloc (sizeof (*bp_location) * bp_location_count); | |
12635 | locp = bp_location; | |
12636 | ALL_BREAKPOINTS (b) | |
12637 | for (loc = b->loc; loc; loc = loc->next) | |
12638 | *locp++ = loc; | |
12639 | qsort (bp_location, bp_location_count, sizeof (*bp_location), | |
494cfb0f | 12640 | bp_location_compare); |
876fa593 JK |
12641 | |
12642 | bp_location_target_extensions_update (); | |
74960c60 | 12643 | |
4a64f543 MS |
12644 | /* Identify bp_location instances that are no longer present in the |
12645 | new list, and therefore should be freed. Note that it's not | |
12646 | necessary that those locations should be removed from inferior -- | |
12647 | if there's another location at the same address (previously | |
12648 | marked as duplicate), we don't need to remove/insert the | |
12649 | location. | |
876fa593 | 12650 | |
4a64f543 MS |
12651 | LOCP is kept in sync with OLD_LOCP, each pointing to the current |
12652 | and former bp_location array state respectively. */ | |
876fa593 JK |
12653 | |
12654 | locp = bp_location; | |
12655 | for (old_locp = old_location; old_locp < old_location + old_location_count; | |
12656 | old_locp++) | |
74960c60 | 12657 | { |
876fa593 | 12658 | struct bp_location *old_loc = *old_locp; |
c7d46a38 | 12659 | struct bp_location **loc2p; |
876fa593 | 12660 | |
e5dd4106 | 12661 | /* Tells if 'old_loc' is found among the new locations. If |
4a64f543 | 12662 | not, we have to free it. */ |
c7d46a38 | 12663 | int found_object = 0; |
20874c92 VP |
12664 | /* Tells if the location should remain inserted in the target. */ |
12665 | int keep_in_target = 0; | |
12666 | int removed = 0; | |
876fa593 | 12667 | |
4a64f543 MS |
12668 | /* Skip LOCP entries which will definitely never be needed. |
12669 | Stop either at or being the one matching OLD_LOC. */ | |
876fa593 | 12670 | while (locp < bp_location + bp_location_count |
c7d46a38 | 12671 | && (*locp)->address < old_loc->address) |
876fa593 | 12672 | locp++; |
c7d46a38 PA |
12673 | |
12674 | for (loc2p = locp; | |
12675 | (loc2p < bp_location + bp_location_count | |
12676 | && (*loc2p)->address == old_loc->address); | |
12677 | loc2p++) | |
12678 | { | |
b775012e LM |
12679 | /* Check if this is a new/duplicated location or a duplicated |
12680 | location that had its condition modified. If so, we want to send | |
12681 | its condition to the target if evaluation of conditions is taking | |
12682 | place there. */ | |
12683 | if ((*loc2p)->condition_changed == condition_modified | |
12684 | && (last_addr != old_loc->address | |
12685 | || last_pspace_num != old_loc->pspace->num)) | |
c7d46a38 | 12686 | { |
b775012e LM |
12687 | force_breakpoint_reinsertion (*loc2p); |
12688 | last_pspace_num = old_loc->pspace->num; | |
c7d46a38 | 12689 | } |
b775012e LM |
12690 | |
12691 | if (*loc2p == old_loc) | |
12692 | found_object = 1; | |
c7d46a38 | 12693 | } |
74960c60 | 12694 | |
b775012e LM |
12695 | /* We have already handled this address, update it so that we don't |
12696 | have to go through updates again. */ | |
12697 | last_addr = old_loc->address; | |
12698 | ||
12699 | /* Target-side condition evaluation: Handle deleted locations. */ | |
12700 | if (!found_object) | |
12701 | force_breakpoint_reinsertion (old_loc); | |
12702 | ||
4a64f543 MS |
12703 | /* If this location is no longer present, and inserted, look if |
12704 | there's maybe a new location at the same address. If so, | |
12705 | mark that one inserted, and don't remove this one. This is | |
12706 | needed so that we don't have a time window where a breakpoint | |
12707 | at certain location is not inserted. */ | |
74960c60 | 12708 | |
876fa593 | 12709 | if (old_loc->inserted) |
0d381245 | 12710 | { |
4a64f543 MS |
12711 | /* If the location is inserted now, we might have to remove |
12712 | it. */ | |
74960c60 | 12713 | |
876fa593 | 12714 | if (found_object && should_be_inserted (old_loc)) |
74960c60 | 12715 | { |
4a64f543 MS |
12716 | /* The location is still present in the location list, |
12717 | and still should be inserted. Don't do anything. */ | |
20874c92 | 12718 | keep_in_target = 1; |
74960c60 VP |
12719 | } |
12720 | else | |
12721 | { | |
b775012e LM |
12722 | /* This location still exists, but it won't be kept in the |
12723 | target since it may have been disabled. We proceed to | |
12724 | remove its target-side condition. */ | |
12725 | ||
4a64f543 MS |
12726 | /* The location is either no longer present, or got |
12727 | disabled. See if there's another location at the | |
12728 | same address, in which case we don't need to remove | |
12729 | this one from the target. */ | |
876fa593 | 12730 | |
2bdf28a0 | 12731 | /* OLD_LOC comes from existing struct breakpoint. */ |
876fa593 JK |
12732 | if (breakpoint_address_is_meaningful (old_loc->owner)) |
12733 | { | |
876fa593 | 12734 | for (loc2p = locp; |
c7d46a38 PA |
12735 | (loc2p < bp_location + bp_location_count |
12736 | && (*loc2p)->address == old_loc->address); | |
876fa593 JK |
12737 | loc2p++) |
12738 | { | |
12739 | struct bp_location *loc2 = *loc2p; | |
12740 | ||
2d134ed3 | 12741 | if (breakpoint_locations_match (loc2, old_loc)) |
c7d46a38 | 12742 | { |
85d721b8 PA |
12743 | /* Read watchpoint locations are switched to |
12744 | access watchpoints, if the former are not | |
12745 | supported, but the latter are. */ | |
12746 | if (is_hardware_watchpoint (old_loc->owner)) | |
12747 | { | |
12748 | gdb_assert (is_hardware_watchpoint (loc2->owner)); | |
12749 | loc2->watchpoint_type = old_loc->watchpoint_type; | |
12750 | } | |
12751 | ||
934709f0 PW |
12752 | /* loc2 is a duplicated location. We need to check |
12753 | if it should be inserted in case it will be | |
12754 | unduplicated. */ | |
12755 | if (loc2 != old_loc | |
12756 | && unduplicated_should_be_inserted (loc2)) | |
c7d46a38 | 12757 | { |
934709f0 | 12758 | swap_insertion (old_loc, loc2); |
c7d46a38 PA |
12759 | keep_in_target = 1; |
12760 | break; | |
12761 | } | |
876fa593 JK |
12762 | } |
12763 | } | |
12764 | } | |
74960c60 VP |
12765 | } |
12766 | ||
20874c92 VP |
12767 | if (!keep_in_target) |
12768 | { | |
876fa593 | 12769 | if (remove_breakpoint (old_loc, mark_uninserted)) |
20874c92 | 12770 | { |
4a64f543 MS |
12771 | /* This is just about all we can do. We could keep |
12772 | this location on the global list, and try to | |
12773 | remove it next time, but there's no particular | |
12774 | reason why we will succeed next time. | |
20874c92 | 12775 | |
4a64f543 MS |
12776 | Note that at this point, old_loc->owner is still |
12777 | valid, as delete_breakpoint frees the breakpoint | |
12778 | only after calling us. */ | |
3e43a32a MS |
12779 | printf_filtered (_("warning: Error removing " |
12780 | "breakpoint %d\n"), | |
876fa593 | 12781 | old_loc->owner->number); |
20874c92 VP |
12782 | } |
12783 | removed = 1; | |
12784 | } | |
0d381245 | 12785 | } |
74960c60 VP |
12786 | |
12787 | if (!found_object) | |
1c5cfe86 | 12788 | { |
db82e815 PA |
12789 | if (removed && non_stop |
12790 | && breakpoint_address_is_meaningful (old_loc->owner) | |
12791 | && !is_hardware_watchpoint (old_loc->owner)) | |
20874c92 | 12792 | { |
db82e815 PA |
12793 | /* This location was removed from the target. In |
12794 | non-stop mode, a race condition is possible where | |
12795 | we've removed a breakpoint, but stop events for that | |
12796 | breakpoint are already queued and will arrive later. | |
12797 | We apply an heuristic to be able to distinguish such | |
12798 | SIGTRAPs from other random SIGTRAPs: we keep this | |
12799 | breakpoint location for a bit, and will retire it | |
12800 | after we see some number of events. The theory here | |
12801 | is that reporting of events should, "on the average", | |
12802 | be fair, so after a while we'll see events from all | |
12803 | threads that have anything of interest, and no longer | |
12804 | need to keep this breakpoint location around. We | |
12805 | don't hold locations forever so to reduce chances of | |
12806 | mistaking a non-breakpoint SIGTRAP for a breakpoint | |
12807 | SIGTRAP. | |
12808 | ||
12809 | The heuristic failing can be disastrous on | |
12810 | decr_pc_after_break targets. | |
12811 | ||
12812 | On decr_pc_after_break targets, like e.g., x86-linux, | |
12813 | if we fail to recognize a late breakpoint SIGTRAP, | |
12814 | because events_till_retirement has reached 0 too | |
12815 | soon, we'll fail to do the PC adjustment, and report | |
12816 | a random SIGTRAP to the user. When the user resumes | |
12817 | the inferior, it will most likely immediately crash | |
2dec564e | 12818 | with SIGILL/SIGBUS/SIGSEGV, or worse, get silently |
db82e815 PA |
12819 | corrupted, because of being resumed e.g., in the |
12820 | middle of a multi-byte instruction, or skipped a | |
12821 | one-byte instruction. This was actually seen happen | |
12822 | on native x86-linux, and should be less rare on | |
12823 | targets that do not support new thread events, like | |
12824 | remote, due to the heuristic depending on | |
12825 | thread_count. | |
12826 | ||
12827 | Mistaking a random SIGTRAP for a breakpoint trap | |
12828 | causes similar symptoms (PC adjustment applied when | |
12829 | it shouldn't), but then again, playing with SIGTRAPs | |
12830 | behind the debugger's back is asking for trouble. | |
12831 | ||
12832 | Since hardware watchpoint traps are always | |
12833 | distinguishable from other traps, so we don't need to | |
12834 | apply keep hardware watchpoint moribund locations | |
12835 | around. We simply always ignore hardware watchpoint | |
12836 | traps we can no longer explain. */ | |
12837 | ||
876fa593 JK |
12838 | old_loc->events_till_retirement = 3 * (thread_count () + 1); |
12839 | old_loc->owner = NULL; | |
20874c92 | 12840 | |
876fa593 | 12841 | VEC_safe_push (bp_location_p, moribund_locations, old_loc); |
1c5cfe86 PA |
12842 | } |
12843 | else | |
f431efe5 PA |
12844 | { |
12845 | old_loc->owner = NULL; | |
12846 | decref_bp_location (&old_loc); | |
12847 | } | |
20874c92 | 12848 | } |
74960c60 | 12849 | } |
1c5cfe86 | 12850 | |
348d480f PA |
12851 | /* Rescan breakpoints at the same address and section, marking the |
12852 | first one as "first" and any others as "duplicates". This is so | |
12853 | that the bpt instruction is only inserted once. If we have a | |
12854 | permanent breakpoint at the same place as BPT, make that one the | |
12855 | official one, and the rest as duplicates. Permanent breakpoints | |
12856 | are sorted first for the same address. | |
12857 | ||
12858 | Do the same for hardware watchpoints, but also considering the | |
12859 | watchpoint's type (regular/access/read) and length. */ | |
12860 | ||
12861 | bp_loc_first = NULL; | |
12862 | wp_loc_first = NULL; | |
12863 | awp_loc_first = NULL; | |
12864 | rwp_loc_first = NULL; | |
12865 | ALL_BP_LOCATIONS (loc, locp) | |
12866 | { | |
12867 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always | |
12868 | non-NULL. */ | |
348d480f | 12869 | struct bp_location **loc_first_p; |
d3fbdd86 | 12870 | b = loc->owner; |
348d480f | 12871 | |
6f380991 | 12872 | if (!unduplicated_should_be_inserted (loc) |
348d480f | 12873 | || !breakpoint_address_is_meaningful (b) |
1e4d1764 YQ |
12874 | /* Don't detect duplicate for tracepoint locations because they are |
12875 | never duplicated. See the comments in field `duplicate' of | |
12876 | `struct bp_location'. */ | |
348d480f | 12877 | || is_tracepoint (b)) |
b775012e LM |
12878 | { |
12879 | /* Clear the condition modification flag. */ | |
12880 | loc->condition_changed = condition_unchanged; | |
12881 | continue; | |
12882 | } | |
348d480f PA |
12883 | |
12884 | /* Permanent breakpoint should always be inserted. */ | |
12885 | if (b->enable_state == bp_permanent && ! loc->inserted) | |
12886 | internal_error (__FILE__, __LINE__, | |
12887 | _("allegedly permanent breakpoint is not " | |
12888 | "actually inserted")); | |
12889 | ||
12890 | if (b->type == bp_hardware_watchpoint) | |
12891 | loc_first_p = &wp_loc_first; | |
12892 | else if (b->type == bp_read_watchpoint) | |
12893 | loc_first_p = &rwp_loc_first; | |
12894 | else if (b->type == bp_access_watchpoint) | |
12895 | loc_first_p = &awp_loc_first; | |
12896 | else | |
12897 | loc_first_p = &bp_loc_first; | |
12898 | ||
12899 | if (*loc_first_p == NULL | |
12900 | || (overlay_debugging && loc->section != (*loc_first_p)->section) | |
12901 | || !breakpoint_locations_match (loc, *loc_first_p)) | |
12902 | { | |
12903 | *loc_first_p = loc; | |
12904 | loc->duplicate = 0; | |
b775012e LM |
12905 | |
12906 | if (is_breakpoint (loc->owner) && loc->condition_changed) | |
12907 | { | |
12908 | loc->needs_update = 1; | |
12909 | /* Clear the condition modification flag. */ | |
12910 | loc->condition_changed = condition_unchanged; | |
12911 | } | |
348d480f PA |
12912 | continue; |
12913 | } | |
12914 | ||
934709f0 PW |
12915 | |
12916 | /* This and the above ensure the invariant that the first location | |
12917 | is not duplicated, and is the inserted one. | |
12918 | All following are marked as duplicated, and are not inserted. */ | |
12919 | if (loc->inserted) | |
12920 | swap_insertion (loc, *loc_first_p); | |
348d480f PA |
12921 | loc->duplicate = 1; |
12922 | ||
b775012e LM |
12923 | /* Clear the condition modification flag. */ |
12924 | loc->condition_changed = condition_unchanged; | |
12925 | ||
348d480f PA |
12926 | if ((*loc_first_p)->owner->enable_state == bp_permanent && loc->inserted |
12927 | && b->enable_state != bp_permanent) | |
12928 | internal_error (__FILE__, __LINE__, | |
12929 | _("another breakpoint was inserted on top of " | |
12930 | "a permanent breakpoint")); | |
12931 | } | |
12932 | ||
04086b45 PA |
12933 | if (insert_mode == UGLL_INSERT |
12934 | || (breakpoints_always_inserted_mode () | |
12935 | && (have_live_inferiors () | |
12936 | || (gdbarch_has_global_breakpoints (target_gdbarch ()))))) | |
b775012e | 12937 | { |
04086b45 | 12938 | if (insert_mode != UGLL_DONT_INSERT) |
b775012e LM |
12939 | insert_breakpoint_locations (); |
12940 | else | |
12941 | { | |
44702360 PA |
12942 | /* Even though the caller told us to not insert new |
12943 | locations, we may still need to update conditions on the | |
12944 | target's side of breakpoints that were already inserted | |
12945 | if the target is evaluating breakpoint conditions. We | |
b775012e LM |
12946 | only update conditions for locations that are marked |
12947 | "needs_update". */ | |
12948 | update_inserted_breakpoint_locations (); | |
12949 | } | |
12950 | } | |
348d480f | 12951 | |
04086b45 | 12952 | if (insert_mode != UGLL_DONT_INSERT) |
1e4d1764 YQ |
12953 | download_tracepoint_locations (); |
12954 | ||
348d480f PA |
12955 | do_cleanups (cleanups); |
12956 | } | |
12957 | ||
12958 | void | |
12959 | breakpoint_retire_moribund (void) | |
12960 | { | |
12961 | struct bp_location *loc; | |
12962 | int ix; | |
12963 | ||
12964 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
12965 | if (--(loc->events_till_retirement) == 0) | |
12966 | { | |
12967 | decref_bp_location (&loc); | |
12968 | VEC_unordered_remove (bp_location_p, moribund_locations, ix); | |
12969 | --ix; | |
12970 | } | |
12971 | } | |
12972 | ||
12973 | static void | |
44702360 | 12974 | update_global_location_list_nothrow (enum ugll_insert_mode insert_mode) |
348d480f | 12975 | { |
bfd189b1 | 12976 | volatile struct gdb_exception e; |
348d480f PA |
12977 | |
12978 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
44702360 | 12979 | update_global_location_list (insert_mode); |
348d480f PA |
12980 | } |
12981 | ||
12982 | /* Clear BKP from a BPS. */ | |
12983 | ||
12984 | static void | |
12985 | bpstat_remove_bp_location (bpstat bps, struct breakpoint *bpt) | |
12986 | { | |
12987 | bpstat bs; | |
12988 | ||
12989 | for (bs = bps; bs; bs = bs->next) | |
12990 | if (bs->breakpoint_at == bpt) | |
12991 | { | |
12992 | bs->breakpoint_at = NULL; | |
12993 | bs->old_val = NULL; | |
12994 | /* bs->commands will be freed later. */ | |
12995 | } | |
12996 | } | |
12997 | ||
12998 | /* Callback for iterate_over_threads. */ | |
12999 | static int | |
13000 | bpstat_remove_breakpoint_callback (struct thread_info *th, void *data) | |
13001 | { | |
13002 | struct breakpoint *bpt = data; | |
13003 | ||
13004 | bpstat_remove_bp_location (th->control.stop_bpstat, bpt); | |
13005 | return 0; | |
13006 | } | |
13007 | ||
13008 | /* Helper for breakpoint and tracepoint breakpoint_ops->mention | |
13009 | callbacks. */ | |
13010 | ||
13011 | static void | |
13012 | say_where (struct breakpoint *b) | |
13013 | { | |
13014 | struct value_print_options opts; | |
13015 | ||
13016 | get_user_print_options (&opts); | |
13017 | ||
13018 | /* i18n: cagney/2005-02-11: Below needs to be merged into a | |
13019 | single string. */ | |
13020 | if (b->loc == NULL) | |
13021 | { | |
13022 | printf_filtered (_(" (%s) pending."), b->addr_string); | |
13023 | } | |
13024 | else | |
13025 | { | |
2f202fde | 13026 | if (opts.addressprint || b->loc->symtab == NULL) |
348d480f PA |
13027 | { |
13028 | printf_filtered (" at "); | |
13029 | fputs_filtered (paddress (b->loc->gdbarch, b->loc->address), | |
13030 | gdb_stdout); | |
13031 | } | |
2f202fde | 13032 | if (b->loc->symtab != NULL) |
f8eba3c6 TT |
13033 | { |
13034 | /* If there is a single location, we can print the location | |
13035 | more nicely. */ | |
13036 | if (b->loc->next == NULL) | |
13037 | printf_filtered (": file %s, line %d.", | |
05cba821 JK |
13038 | symtab_to_filename_for_display (b->loc->symtab), |
13039 | b->loc->line_number); | |
f8eba3c6 TT |
13040 | else |
13041 | /* This is not ideal, but each location may have a | |
13042 | different file name, and this at least reflects the | |
13043 | real situation somewhat. */ | |
13044 | printf_filtered (": %s.", b->addr_string); | |
13045 | } | |
348d480f PA |
13046 | |
13047 | if (b->loc->next) | |
13048 | { | |
13049 | struct bp_location *loc = b->loc; | |
13050 | int n = 0; | |
13051 | for (; loc; loc = loc->next) | |
13052 | ++n; | |
13053 | printf_filtered (" (%d locations)", n); | |
13054 | } | |
13055 | } | |
13056 | } | |
13057 | ||
348d480f PA |
13058 | /* Default bp_location_ops methods. */ |
13059 | ||
13060 | static void | |
13061 | bp_location_dtor (struct bp_location *self) | |
13062 | { | |
13063 | xfree (self->cond); | |
b775012e LM |
13064 | if (self->cond_bytecode) |
13065 | free_agent_expr (self->cond_bytecode); | |
348d480f | 13066 | xfree (self->function_name); |
8b4f3082 PA |
13067 | |
13068 | VEC_free (agent_expr_p, self->target_info.conditions); | |
13069 | VEC_free (agent_expr_p, self->target_info.tcommands); | |
348d480f PA |
13070 | } |
13071 | ||
13072 | static const struct bp_location_ops bp_location_ops = | |
13073 | { | |
13074 | bp_location_dtor | |
13075 | }; | |
13076 | ||
2060206e PA |
13077 | /* Default breakpoint_ops methods all breakpoint_ops ultimately |
13078 | inherit from. */ | |
348d480f | 13079 | |
2060206e PA |
13080 | static void |
13081 | base_breakpoint_dtor (struct breakpoint *self) | |
348d480f PA |
13082 | { |
13083 | decref_counted_command_line (&self->commands); | |
13084 | xfree (self->cond_string); | |
fb81d016 | 13085 | xfree (self->extra_string); |
348d480f | 13086 | xfree (self->addr_string); |
f8eba3c6 | 13087 | xfree (self->filter); |
348d480f | 13088 | xfree (self->addr_string_range_end); |
348d480f PA |
13089 | } |
13090 | ||
2060206e PA |
13091 | static struct bp_location * |
13092 | base_breakpoint_allocate_location (struct breakpoint *self) | |
348d480f PA |
13093 | { |
13094 | struct bp_location *loc; | |
13095 | ||
13096 | loc = XNEW (struct bp_location); | |
13097 | init_bp_location (loc, &bp_location_ops, self); | |
13098 | return loc; | |
13099 | } | |
13100 | ||
2060206e PA |
13101 | static void |
13102 | base_breakpoint_re_set (struct breakpoint *b) | |
13103 | { | |
13104 | /* Nothing to re-set. */ | |
13105 | } | |
13106 | ||
13107 | #define internal_error_pure_virtual_called() \ | |
13108 | gdb_assert_not_reached ("pure virtual function called") | |
13109 | ||
13110 | static int | |
13111 | base_breakpoint_insert_location (struct bp_location *bl) | |
13112 | { | |
13113 | internal_error_pure_virtual_called (); | |
13114 | } | |
13115 | ||
13116 | static int | |
13117 | base_breakpoint_remove_location (struct bp_location *bl) | |
13118 | { | |
13119 | internal_error_pure_virtual_called (); | |
13120 | } | |
13121 | ||
13122 | static int | |
13123 | base_breakpoint_breakpoint_hit (const struct bp_location *bl, | |
13124 | struct address_space *aspace, | |
09ac7c10 TT |
13125 | CORE_ADDR bp_addr, |
13126 | const struct target_waitstatus *ws) | |
2060206e PA |
13127 | { |
13128 | internal_error_pure_virtual_called (); | |
13129 | } | |
13130 | ||
13131 | static void | |
13132 | base_breakpoint_check_status (bpstat bs) | |
13133 | { | |
13134 | /* Always stop. */ | |
13135 | } | |
13136 | ||
13137 | /* A "works_in_software_mode" breakpoint_ops method that just internal | |
13138 | errors. */ | |
13139 | ||
13140 | static int | |
13141 | base_breakpoint_works_in_software_mode (const struct breakpoint *b) | |
13142 | { | |
13143 | internal_error_pure_virtual_called (); | |
13144 | } | |
13145 | ||
13146 | /* A "resources_needed" breakpoint_ops method that just internal | |
13147 | errors. */ | |
13148 | ||
13149 | static int | |
13150 | base_breakpoint_resources_needed (const struct bp_location *bl) | |
13151 | { | |
13152 | internal_error_pure_virtual_called (); | |
13153 | } | |
13154 | ||
13155 | static enum print_stop_action | |
13156 | base_breakpoint_print_it (bpstat bs) | |
13157 | { | |
13158 | internal_error_pure_virtual_called (); | |
13159 | } | |
13160 | ||
13161 | static void | |
13162 | base_breakpoint_print_one_detail (const struct breakpoint *self, | |
13163 | struct ui_out *uiout) | |
13164 | { | |
13165 | /* nothing */ | |
13166 | } | |
13167 | ||
13168 | static void | |
13169 | base_breakpoint_print_mention (struct breakpoint *b) | |
13170 | { | |
13171 | internal_error_pure_virtual_called (); | |
13172 | } | |
13173 | ||
13174 | static void | |
13175 | base_breakpoint_print_recreate (struct breakpoint *b, struct ui_file *fp) | |
13176 | { | |
13177 | internal_error_pure_virtual_called (); | |
13178 | } | |
13179 | ||
983af33b SDJ |
13180 | static void |
13181 | base_breakpoint_create_sals_from_address (char **arg, | |
13182 | struct linespec_result *canonical, | |
13183 | enum bptype type_wanted, | |
13184 | char *addr_start, | |
13185 | char **copy_arg) | |
13186 | { | |
13187 | internal_error_pure_virtual_called (); | |
13188 | } | |
13189 | ||
13190 | static void | |
13191 | base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13192 | struct linespec_result *c, | |
983af33b | 13193 | char *cond_string, |
e7e0cddf | 13194 | char *extra_string, |
983af33b SDJ |
13195 | enum bptype type_wanted, |
13196 | enum bpdisp disposition, | |
13197 | int thread, | |
13198 | int task, int ignore_count, | |
13199 | const struct breakpoint_ops *o, | |
13200 | int from_tty, int enabled, | |
44f238bb | 13201 | int internal, unsigned flags) |
983af33b SDJ |
13202 | { |
13203 | internal_error_pure_virtual_called (); | |
13204 | } | |
13205 | ||
13206 | static void | |
13207 | base_breakpoint_decode_linespec (struct breakpoint *b, char **s, | |
13208 | struct symtabs_and_lines *sals) | |
13209 | { | |
13210 | internal_error_pure_virtual_called (); | |
13211 | } | |
13212 | ||
ab04a2af TT |
13213 | /* The default 'explains_signal' method. */ |
13214 | ||
47591c29 | 13215 | static int |
427cd150 | 13216 | base_breakpoint_explains_signal (struct breakpoint *b, enum gdb_signal sig) |
ab04a2af | 13217 | { |
47591c29 | 13218 | return 1; |
ab04a2af TT |
13219 | } |
13220 | ||
9d6e6e84 HZ |
13221 | /* The default "after_condition_true" method. */ |
13222 | ||
13223 | static void | |
13224 | base_breakpoint_after_condition_true (struct bpstats *bs) | |
13225 | { | |
13226 | /* Nothing to do. */ | |
13227 | } | |
13228 | ||
ab04a2af | 13229 | struct breakpoint_ops base_breakpoint_ops = |
2060206e PA |
13230 | { |
13231 | base_breakpoint_dtor, | |
13232 | base_breakpoint_allocate_location, | |
13233 | base_breakpoint_re_set, | |
13234 | base_breakpoint_insert_location, | |
13235 | base_breakpoint_remove_location, | |
13236 | base_breakpoint_breakpoint_hit, | |
13237 | base_breakpoint_check_status, | |
13238 | base_breakpoint_resources_needed, | |
13239 | base_breakpoint_works_in_software_mode, | |
13240 | base_breakpoint_print_it, | |
13241 | NULL, | |
13242 | base_breakpoint_print_one_detail, | |
13243 | base_breakpoint_print_mention, | |
983af33b SDJ |
13244 | base_breakpoint_print_recreate, |
13245 | base_breakpoint_create_sals_from_address, | |
13246 | base_breakpoint_create_breakpoints_sal, | |
13247 | base_breakpoint_decode_linespec, | |
9d6e6e84 HZ |
13248 | base_breakpoint_explains_signal, |
13249 | base_breakpoint_after_condition_true, | |
2060206e PA |
13250 | }; |
13251 | ||
13252 | /* Default breakpoint_ops methods. */ | |
13253 | ||
13254 | static void | |
348d480f PA |
13255 | bkpt_re_set (struct breakpoint *b) |
13256 | { | |
06edf0c0 PA |
13257 | /* FIXME: is this still reachable? */ |
13258 | if (b->addr_string == NULL) | |
13259 | { | |
13260 | /* Anything without a string can't be re-set. */ | |
348d480f | 13261 | delete_breakpoint (b); |
06edf0c0 | 13262 | return; |
348d480f | 13263 | } |
06edf0c0 PA |
13264 | |
13265 | breakpoint_re_set_default (b); | |
348d480f PA |
13266 | } |
13267 | ||
ef370185 JB |
13268 | /* Copy SRC's shadow buffer and whatever else we'd set if we actually |
13269 | inserted DEST, so we can remove it later, in case SRC is removed | |
13270 | first. */ | |
13271 | ||
13272 | static void | |
13273 | bp_target_info_copy_insertion_state (struct bp_target_info *dest, | |
13274 | const struct bp_target_info *src) | |
13275 | { | |
13276 | dest->shadow_len = src->shadow_len; | |
13277 | memcpy (dest->shadow_contents, src->shadow_contents, src->shadow_len); | |
13278 | dest->placed_size = src->placed_size; | |
13279 | } | |
13280 | ||
2060206e | 13281 | static int |
348d480f PA |
13282 | bkpt_insert_location (struct bp_location *bl) |
13283 | { | |
13284 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
13285 | return target_insert_hw_breakpoint (bl->gdbarch, | |
13286 | &bl->target_info); | |
13287 | else | |
ef370185 JB |
13288 | { |
13289 | struct bp_target_info *bp_tgt = &bl->target_info; | |
13290 | int ret; | |
13291 | int sss_slot; | |
13292 | ||
13293 | /* There is no need to insert a breakpoint if an unconditional | |
13294 | raw/sss breakpoint is already inserted at that location. */ | |
13295 | sss_slot = find_single_step_breakpoint (bp_tgt->placed_address_space, | |
13296 | bp_tgt->placed_address); | |
13297 | if (sss_slot >= 0) | |
13298 | { | |
13299 | struct bp_target_info *sss_bp_tgt = single_step_breakpoints[sss_slot]; | |
13300 | ||
13301 | bp_target_info_copy_insertion_state (bp_tgt, sss_bp_tgt); | |
13302 | return 0; | |
13303 | } | |
13304 | ||
13305 | return target_insert_breakpoint (bl->gdbarch, bp_tgt); | |
13306 | } | |
348d480f PA |
13307 | } |
13308 | ||
2060206e | 13309 | static int |
348d480f PA |
13310 | bkpt_remove_location (struct bp_location *bl) |
13311 | { | |
13312 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
13313 | return target_remove_hw_breakpoint (bl->gdbarch, &bl->target_info); | |
13314 | else | |
ef370185 JB |
13315 | { |
13316 | struct bp_target_info *bp_tgt = &bl->target_info; | |
13317 | struct address_space *aspace = bp_tgt->placed_address_space; | |
13318 | CORE_ADDR address = bp_tgt->placed_address; | |
13319 | ||
13320 | /* Only remove the breakpoint if there is no raw/sss breakpoint | |
13321 | still inserted at this location. Otherwise, we would be | |
13322 | effectively disabling the raw/sss breakpoint. */ | |
13323 | if (single_step_breakpoint_inserted_here_p (aspace, address)) | |
13324 | return 0; | |
13325 | ||
13326 | return target_remove_breakpoint (bl->gdbarch, bp_tgt); | |
13327 | } | |
348d480f PA |
13328 | } |
13329 | ||
2060206e | 13330 | static int |
348d480f | 13331 | bkpt_breakpoint_hit (const struct bp_location *bl, |
09ac7c10 TT |
13332 | struct address_space *aspace, CORE_ADDR bp_addr, |
13333 | const struct target_waitstatus *ws) | |
348d480f | 13334 | { |
09ac7c10 | 13335 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 13336 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
13337 | return 0; |
13338 | ||
348d480f PA |
13339 | if (!breakpoint_address_match (bl->pspace->aspace, bl->address, |
13340 | aspace, bp_addr)) | |
13341 | return 0; | |
13342 | ||
13343 | if (overlay_debugging /* unmapped overlay section */ | |
13344 | && section_is_overlay (bl->section) | |
13345 | && !section_is_mapped (bl->section)) | |
13346 | return 0; | |
13347 | ||
13348 | return 1; | |
13349 | } | |
13350 | ||
cd1608cc PA |
13351 | static int |
13352 | dprintf_breakpoint_hit (const struct bp_location *bl, | |
13353 | struct address_space *aspace, CORE_ADDR bp_addr, | |
13354 | const struct target_waitstatus *ws) | |
13355 | { | |
13356 | if (dprintf_style == dprintf_style_agent | |
13357 | && target_can_run_breakpoint_commands ()) | |
13358 | { | |
13359 | /* An agent-style dprintf never causes a stop. If we see a trap | |
13360 | for this address it must be for a breakpoint that happens to | |
13361 | be set at the same address. */ | |
13362 | return 0; | |
13363 | } | |
13364 | ||
13365 | return bkpt_breakpoint_hit (bl, aspace, bp_addr, ws); | |
13366 | } | |
13367 | ||
2060206e | 13368 | static int |
348d480f PA |
13369 | bkpt_resources_needed (const struct bp_location *bl) |
13370 | { | |
13371 | gdb_assert (bl->owner->type == bp_hardware_breakpoint); | |
13372 | ||
13373 | return 1; | |
13374 | } | |
13375 | ||
2060206e | 13376 | static enum print_stop_action |
348d480f PA |
13377 | bkpt_print_it (bpstat bs) |
13378 | { | |
348d480f PA |
13379 | struct breakpoint *b; |
13380 | const struct bp_location *bl; | |
001c8c33 | 13381 | int bp_temp; |
79a45e25 | 13382 | struct ui_out *uiout = current_uiout; |
348d480f PA |
13383 | |
13384 | gdb_assert (bs->bp_location_at != NULL); | |
13385 | ||
13386 | bl = bs->bp_location_at; | |
13387 | b = bs->breakpoint_at; | |
13388 | ||
001c8c33 PA |
13389 | bp_temp = b->disposition == disp_del; |
13390 | if (bl->address != bl->requested_address) | |
13391 | breakpoint_adjustment_warning (bl->requested_address, | |
13392 | bl->address, | |
13393 | b->number, 1); | |
13394 | annotate_breakpoint (b->number); | |
13395 | if (bp_temp) | |
13396 | ui_out_text (uiout, "\nTemporary breakpoint "); | |
13397 | else | |
13398 | ui_out_text (uiout, "\nBreakpoint "); | |
13399 | if (ui_out_is_mi_like_p (uiout)) | |
348d480f | 13400 | { |
001c8c33 PA |
13401 | ui_out_field_string (uiout, "reason", |
13402 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
13403 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
06edf0c0 | 13404 | } |
001c8c33 PA |
13405 | ui_out_field_int (uiout, "bkptno", b->number); |
13406 | ui_out_text (uiout, ", "); | |
06edf0c0 | 13407 | |
001c8c33 | 13408 | return PRINT_SRC_AND_LOC; |
06edf0c0 PA |
13409 | } |
13410 | ||
2060206e | 13411 | static void |
06edf0c0 PA |
13412 | bkpt_print_mention (struct breakpoint *b) |
13413 | { | |
79a45e25 | 13414 | if (ui_out_is_mi_like_p (current_uiout)) |
06edf0c0 PA |
13415 | return; |
13416 | ||
13417 | switch (b->type) | |
13418 | { | |
13419 | case bp_breakpoint: | |
13420 | case bp_gnu_ifunc_resolver: | |
13421 | if (b->disposition == disp_del) | |
13422 | printf_filtered (_("Temporary breakpoint")); | |
13423 | else | |
13424 | printf_filtered (_("Breakpoint")); | |
13425 | printf_filtered (_(" %d"), b->number); | |
13426 | if (b->type == bp_gnu_ifunc_resolver) | |
13427 | printf_filtered (_(" at gnu-indirect-function resolver")); | |
13428 | break; | |
13429 | case bp_hardware_breakpoint: | |
13430 | printf_filtered (_("Hardware assisted breakpoint %d"), b->number); | |
13431 | break; | |
e7e0cddf SS |
13432 | case bp_dprintf: |
13433 | printf_filtered (_("Dprintf %d"), b->number); | |
13434 | break; | |
06edf0c0 PA |
13435 | } |
13436 | ||
13437 | say_where (b); | |
13438 | } | |
13439 | ||
2060206e | 13440 | static void |
06edf0c0 PA |
13441 | bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp) |
13442 | { | |
13443 | if (tp->type == bp_breakpoint && tp->disposition == disp_del) | |
13444 | fprintf_unfiltered (fp, "tbreak"); | |
13445 | else if (tp->type == bp_breakpoint) | |
13446 | fprintf_unfiltered (fp, "break"); | |
13447 | else if (tp->type == bp_hardware_breakpoint | |
13448 | && tp->disposition == disp_del) | |
13449 | fprintf_unfiltered (fp, "thbreak"); | |
13450 | else if (tp->type == bp_hardware_breakpoint) | |
13451 | fprintf_unfiltered (fp, "hbreak"); | |
13452 | else | |
13453 | internal_error (__FILE__, __LINE__, | |
13454 | _("unhandled breakpoint type %d"), (int) tp->type); | |
13455 | ||
2060206e | 13456 | fprintf_unfiltered (fp, " %s", tp->addr_string); |
dd11a36c | 13457 | print_recreate_thread (tp, fp); |
06edf0c0 PA |
13458 | } |
13459 | ||
983af33b SDJ |
13460 | static void |
13461 | bkpt_create_sals_from_address (char **arg, | |
13462 | struct linespec_result *canonical, | |
13463 | enum bptype type_wanted, | |
13464 | char *addr_start, char **copy_arg) | |
13465 | { | |
13466 | create_sals_from_address_default (arg, canonical, type_wanted, | |
13467 | addr_start, copy_arg); | |
13468 | } | |
13469 | ||
13470 | static void | |
13471 | bkpt_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13472 | struct linespec_result *canonical, | |
983af33b | 13473 | char *cond_string, |
e7e0cddf | 13474 | char *extra_string, |
983af33b SDJ |
13475 | enum bptype type_wanted, |
13476 | enum bpdisp disposition, | |
13477 | int thread, | |
13478 | int task, int ignore_count, | |
13479 | const struct breakpoint_ops *ops, | |
13480 | int from_tty, int enabled, | |
44f238bb | 13481 | int internal, unsigned flags) |
983af33b | 13482 | { |
023fa29b | 13483 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13484 | cond_string, extra_string, |
13485 | type_wanted, | |
983af33b SDJ |
13486 | disposition, thread, task, |
13487 | ignore_count, ops, from_tty, | |
44f238bb | 13488 | enabled, internal, flags); |
983af33b SDJ |
13489 | } |
13490 | ||
13491 | static void | |
13492 | bkpt_decode_linespec (struct breakpoint *b, char **s, | |
13493 | struct symtabs_and_lines *sals) | |
13494 | { | |
13495 | decode_linespec_default (b, s, sals); | |
13496 | } | |
13497 | ||
06edf0c0 PA |
13498 | /* Virtual table for internal breakpoints. */ |
13499 | ||
13500 | static void | |
13501 | internal_bkpt_re_set (struct breakpoint *b) | |
13502 | { | |
13503 | switch (b->type) | |
13504 | { | |
13505 | /* Delete overlay event and longjmp master breakpoints; they | |
13506 | will be reset later by breakpoint_re_set. */ | |
13507 | case bp_overlay_event: | |
13508 | case bp_longjmp_master: | |
13509 | case bp_std_terminate_master: | |
13510 | case bp_exception_master: | |
13511 | delete_breakpoint (b); | |
13512 | break; | |
13513 | ||
13514 | /* This breakpoint is special, it's set up when the inferior | |
13515 | starts and we really don't want to touch it. */ | |
13516 | case bp_shlib_event: | |
13517 | ||
13518 | /* Like bp_shlib_event, this breakpoint type is special. Once | |
13519 | it is set up, we do not want to touch it. */ | |
13520 | case bp_thread_event: | |
13521 | break; | |
13522 | } | |
13523 | } | |
13524 | ||
13525 | static void | |
13526 | internal_bkpt_check_status (bpstat bs) | |
13527 | { | |
a9b3a50f PA |
13528 | if (bs->breakpoint_at->type == bp_shlib_event) |
13529 | { | |
13530 | /* If requested, stop when the dynamic linker notifies GDB of | |
13531 | events. This allows the user to get control and place | |
13532 | breakpoints in initializer routines for dynamically loaded | |
13533 | objects (among other things). */ | |
13534 | bs->stop = stop_on_solib_events; | |
13535 | bs->print = stop_on_solib_events; | |
13536 | } | |
13537 | else | |
13538 | bs->stop = 0; | |
06edf0c0 PA |
13539 | } |
13540 | ||
13541 | static enum print_stop_action | |
13542 | internal_bkpt_print_it (bpstat bs) | |
13543 | { | |
06edf0c0 | 13544 | struct breakpoint *b; |
06edf0c0 | 13545 | |
06edf0c0 PA |
13546 | b = bs->breakpoint_at; |
13547 | ||
06edf0c0 PA |
13548 | switch (b->type) |
13549 | { | |
348d480f PA |
13550 | case bp_shlib_event: |
13551 | /* Did we stop because the user set the stop_on_solib_events | |
13552 | variable? (If so, we report this as a generic, "Stopped due | |
13553 | to shlib event" message.) */ | |
edcc5120 | 13554 | print_solib_event (0); |
348d480f PA |
13555 | break; |
13556 | ||
13557 | case bp_thread_event: | |
13558 | /* Not sure how we will get here. | |
13559 | GDB should not stop for these breakpoints. */ | |
13560 | printf_filtered (_("Thread Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13561 | break; |
13562 | ||
13563 | case bp_overlay_event: | |
13564 | /* By analogy with the thread event, GDB should not stop for these. */ | |
13565 | printf_filtered (_("Overlay Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13566 | break; |
13567 | ||
13568 | case bp_longjmp_master: | |
13569 | /* These should never be enabled. */ | |
13570 | printf_filtered (_("Longjmp Master Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13571 | break; |
13572 | ||
13573 | case bp_std_terminate_master: | |
13574 | /* These should never be enabled. */ | |
13575 | printf_filtered (_("std::terminate Master Breakpoint: " | |
13576 | "gdb should not stop!\n")); | |
348d480f PA |
13577 | break; |
13578 | ||
13579 | case bp_exception_master: | |
13580 | /* These should never be enabled. */ | |
13581 | printf_filtered (_("Exception Master Breakpoint: " | |
13582 | "gdb should not stop!\n")); | |
06edf0c0 PA |
13583 | break; |
13584 | } | |
13585 | ||
001c8c33 | 13586 | return PRINT_NOTHING; |
06edf0c0 PA |
13587 | } |
13588 | ||
13589 | static void | |
13590 | internal_bkpt_print_mention (struct breakpoint *b) | |
13591 | { | |
13592 | /* Nothing to mention. These breakpoints are internal. */ | |
13593 | } | |
13594 | ||
06edf0c0 PA |
13595 | /* Virtual table for momentary breakpoints */ |
13596 | ||
13597 | static void | |
13598 | momentary_bkpt_re_set (struct breakpoint *b) | |
13599 | { | |
13600 | /* Keep temporary breakpoints, which can be encountered when we step | |
4d1eb6b4 | 13601 | over a dlopen call and solib_add is resetting the breakpoints. |
06edf0c0 PA |
13602 | Otherwise these should have been blown away via the cleanup chain |
13603 | or by breakpoint_init_inferior when we rerun the executable. */ | |
13604 | } | |
13605 | ||
13606 | static void | |
13607 | momentary_bkpt_check_status (bpstat bs) | |
13608 | { | |
13609 | /* Nothing. The point of these breakpoints is causing a stop. */ | |
13610 | } | |
13611 | ||
13612 | static enum print_stop_action | |
13613 | momentary_bkpt_print_it (bpstat bs) | |
13614 | { | |
79a45e25 PA |
13615 | struct ui_out *uiout = current_uiout; |
13616 | ||
001c8c33 | 13617 | if (ui_out_is_mi_like_p (uiout)) |
06edf0c0 | 13618 | { |
001c8c33 | 13619 | struct breakpoint *b = bs->breakpoint_at; |
348d480f | 13620 | |
001c8c33 PA |
13621 | switch (b->type) |
13622 | { | |
13623 | case bp_finish: | |
13624 | ui_out_field_string | |
13625 | (uiout, "reason", | |
13626 | async_reason_lookup (EXEC_ASYNC_FUNCTION_FINISHED)); | |
13627 | break; | |
348d480f | 13628 | |
001c8c33 PA |
13629 | case bp_until: |
13630 | ui_out_field_string | |
13631 | (uiout, "reason", | |
13632 | async_reason_lookup (EXEC_ASYNC_LOCATION_REACHED)); | |
13633 | break; | |
13634 | } | |
348d480f PA |
13635 | } |
13636 | ||
001c8c33 | 13637 | return PRINT_UNKNOWN; |
348d480f PA |
13638 | } |
13639 | ||
06edf0c0 PA |
13640 | static void |
13641 | momentary_bkpt_print_mention (struct breakpoint *b) | |
348d480f | 13642 | { |
06edf0c0 | 13643 | /* Nothing to mention. These breakpoints are internal. */ |
348d480f PA |
13644 | } |
13645 | ||
e2e4d78b JK |
13646 | /* Ensure INITIATING_FRAME is cleared when no such breakpoint exists. |
13647 | ||
13648 | It gets cleared already on the removal of the first one of such placed | |
13649 | breakpoints. This is OK as they get all removed altogether. */ | |
13650 | ||
13651 | static void | |
13652 | longjmp_bkpt_dtor (struct breakpoint *self) | |
13653 | { | |
13654 | struct thread_info *tp = find_thread_id (self->thread); | |
13655 | ||
13656 | if (tp) | |
13657 | tp->initiating_frame = null_frame_id; | |
13658 | ||
13659 | momentary_breakpoint_ops.dtor (self); | |
13660 | } | |
13661 | ||
55aa24fb SDJ |
13662 | /* Specific methods for probe breakpoints. */ |
13663 | ||
13664 | static int | |
13665 | bkpt_probe_insert_location (struct bp_location *bl) | |
13666 | { | |
13667 | int v = bkpt_insert_location (bl); | |
13668 | ||
13669 | if (v == 0) | |
13670 | { | |
13671 | /* The insertion was successful, now let's set the probe's semaphore | |
13672 | if needed. */ | |
729662a5 TT |
13673 | bl->probe.probe->pops->set_semaphore (bl->probe.probe, |
13674 | bl->probe.objfile, | |
13675 | bl->gdbarch); | |
55aa24fb SDJ |
13676 | } |
13677 | ||
13678 | return v; | |
13679 | } | |
13680 | ||
13681 | static int | |
13682 | bkpt_probe_remove_location (struct bp_location *bl) | |
13683 | { | |
13684 | /* Let's clear the semaphore before removing the location. */ | |
729662a5 TT |
13685 | bl->probe.probe->pops->clear_semaphore (bl->probe.probe, |
13686 | bl->probe.objfile, | |
13687 | bl->gdbarch); | |
55aa24fb SDJ |
13688 | |
13689 | return bkpt_remove_location (bl); | |
13690 | } | |
13691 | ||
13692 | static void | |
13693 | bkpt_probe_create_sals_from_address (char **arg, | |
13694 | struct linespec_result *canonical, | |
13695 | enum bptype type_wanted, | |
13696 | char *addr_start, char **copy_arg) | |
13697 | { | |
13698 | struct linespec_sals lsal; | |
13699 | ||
13700 | lsal.sals = parse_probes (arg, canonical); | |
13701 | ||
13702 | *copy_arg = xstrdup (canonical->addr_string); | |
13703 | lsal.canonical = xstrdup (*copy_arg); | |
13704 | ||
13705 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
13706 | } | |
13707 | ||
13708 | static void | |
13709 | bkpt_probe_decode_linespec (struct breakpoint *b, char **s, | |
13710 | struct symtabs_and_lines *sals) | |
13711 | { | |
13712 | *sals = parse_probes (s, NULL); | |
13713 | if (!sals->sals) | |
13714 | error (_("probe not found")); | |
13715 | } | |
13716 | ||
348d480f | 13717 | /* The breakpoint_ops structure to be used in tracepoints. */ |
876fa593 | 13718 | |
348d480f PA |
13719 | static void |
13720 | tracepoint_re_set (struct breakpoint *b) | |
13721 | { | |
13722 | breakpoint_re_set_default (b); | |
13723 | } | |
876fa593 | 13724 | |
348d480f PA |
13725 | static int |
13726 | tracepoint_breakpoint_hit (const struct bp_location *bl, | |
09ac7c10 TT |
13727 | struct address_space *aspace, CORE_ADDR bp_addr, |
13728 | const struct target_waitstatus *ws) | |
348d480f PA |
13729 | { |
13730 | /* By definition, the inferior does not report stops at | |
13731 | tracepoints. */ | |
13732 | return 0; | |
74960c60 VP |
13733 | } |
13734 | ||
13735 | static void | |
348d480f PA |
13736 | tracepoint_print_one_detail (const struct breakpoint *self, |
13737 | struct ui_out *uiout) | |
74960c60 | 13738 | { |
d9b3f62e PA |
13739 | struct tracepoint *tp = (struct tracepoint *) self; |
13740 | if (tp->static_trace_marker_id) | |
348d480f PA |
13741 | { |
13742 | gdb_assert (self->type == bp_static_tracepoint); | |
cc59ec59 | 13743 | |
348d480f PA |
13744 | ui_out_text (uiout, "\tmarker id is "); |
13745 | ui_out_field_string (uiout, "static-tracepoint-marker-string-id", | |
d9b3f62e | 13746 | tp->static_trace_marker_id); |
348d480f PA |
13747 | ui_out_text (uiout, "\n"); |
13748 | } | |
0d381245 VP |
13749 | } |
13750 | ||
a474d7c2 | 13751 | static void |
348d480f | 13752 | tracepoint_print_mention (struct breakpoint *b) |
a474d7c2 | 13753 | { |
79a45e25 | 13754 | if (ui_out_is_mi_like_p (current_uiout)) |
348d480f | 13755 | return; |
cc59ec59 | 13756 | |
348d480f PA |
13757 | switch (b->type) |
13758 | { | |
13759 | case bp_tracepoint: | |
13760 | printf_filtered (_("Tracepoint")); | |
13761 | printf_filtered (_(" %d"), b->number); | |
13762 | break; | |
13763 | case bp_fast_tracepoint: | |
13764 | printf_filtered (_("Fast tracepoint")); | |
13765 | printf_filtered (_(" %d"), b->number); | |
13766 | break; | |
13767 | case bp_static_tracepoint: | |
13768 | printf_filtered (_("Static tracepoint")); | |
13769 | printf_filtered (_(" %d"), b->number); | |
13770 | break; | |
13771 | default: | |
13772 | internal_error (__FILE__, __LINE__, | |
13773 | _("unhandled tracepoint type %d"), (int) b->type); | |
13774 | } | |
13775 | ||
13776 | say_where (b); | |
a474d7c2 PA |
13777 | } |
13778 | ||
348d480f | 13779 | static void |
d9b3f62e | 13780 | tracepoint_print_recreate (struct breakpoint *self, struct ui_file *fp) |
a474d7c2 | 13781 | { |
d9b3f62e PA |
13782 | struct tracepoint *tp = (struct tracepoint *) self; |
13783 | ||
13784 | if (self->type == bp_fast_tracepoint) | |
348d480f | 13785 | fprintf_unfiltered (fp, "ftrace"); |
d9b3f62e | 13786 | if (self->type == bp_static_tracepoint) |
348d480f | 13787 | fprintf_unfiltered (fp, "strace"); |
d9b3f62e | 13788 | else if (self->type == bp_tracepoint) |
348d480f PA |
13789 | fprintf_unfiltered (fp, "trace"); |
13790 | else | |
13791 | internal_error (__FILE__, __LINE__, | |
d9b3f62e | 13792 | _("unhandled tracepoint type %d"), (int) self->type); |
cc59ec59 | 13793 | |
d9b3f62e PA |
13794 | fprintf_unfiltered (fp, " %s", self->addr_string); |
13795 | print_recreate_thread (self, fp); | |
13796 | ||
13797 | if (tp->pass_count) | |
13798 | fprintf_unfiltered (fp, " passcount %d\n", tp->pass_count); | |
a474d7c2 PA |
13799 | } |
13800 | ||
983af33b SDJ |
13801 | static void |
13802 | tracepoint_create_sals_from_address (char **arg, | |
13803 | struct linespec_result *canonical, | |
13804 | enum bptype type_wanted, | |
13805 | char *addr_start, char **copy_arg) | |
13806 | { | |
13807 | create_sals_from_address_default (arg, canonical, type_wanted, | |
13808 | addr_start, copy_arg); | |
13809 | } | |
13810 | ||
13811 | static void | |
13812 | tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13813 | struct linespec_result *canonical, | |
983af33b | 13814 | char *cond_string, |
e7e0cddf | 13815 | char *extra_string, |
983af33b SDJ |
13816 | enum bptype type_wanted, |
13817 | enum bpdisp disposition, | |
13818 | int thread, | |
13819 | int task, int ignore_count, | |
13820 | const struct breakpoint_ops *ops, | |
13821 | int from_tty, int enabled, | |
44f238bb | 13822 | int internal, unsigned flags) |
983af33b | 13823 | { |
023fa29b | 13824 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13825 | cond_string, extra_string, |
13826 | type_wanted, | |
983af33b SDJ |
13827 | disposition, thread, task, |
13828 | ignore_count, ops, from_tty, | |
44f238bb | 13829 | enabled, internal, flags); |
983af33b SDJ |
13830 | } |
13831 | ||
13832 | static void | |
13833 | tracepoint_decode_linespec (struct breakpoint *b, char **s, | |
13834 | struct symtabs_and_lines *sals) | |
13835 | { | |
13836 | decode_linespec_default (b, s, sals); | |
13837 | } | |
13838 | ||
2060206e | 13839 | struct breakpoint_ops tracepoint_breakpoint_ops; |
348d480f | 13840 | |
55aa24fb SDJ |
13841 | /* The breakpoint_ops structure to be use on tracepoints placed in a |
13842 | static probe. */ | |
13843 | ||
13844 | static void | |
13845 | tracepoint_probe_create_sals_from_address (char **arg, | |
13846 | struct linespec_result *canonical, | |
13847 | enum bptype type_wanted, | |
13848 | char *addr_start, char **copy_arg) | |
13849 | { | |
13850 | /* We use the same method for breakpoint on probes. */ | |
13851 | bkpt_probe_create_sals_from_address (arg, canonical, type_wanted, | |
13852 | addr_start, copy_arg); | |
13853 | } | |
13854 | ||
13855 | static void | |
13856 | tracepoint_probe_decode_linespec (struct breakpoint *b, char **s, | |
13857 | struct symtabs_and_lines *sals) | |
13858 | { | |
13859 | /* We use the same method for breakpoint on probes. */ | |
13860 | bkpt_probe_decode_linespec (b, s, sals); | |
13861 | } | |
13862 | ||
13863 | static struct breakpoint_ops tracepoint_probe_breakpoint_ops; | |
13864 | ||
5c2b4418 HZ |
13865 | /* Dprintf breakpoint_ops methods. */ |
13866 | ||
13867 | static void | |
13868 | dprintf_re_set (struct breakpoint *b) | |
13869 | { | |
13870 | breakpoint_re_set_default (b); | |
13871 | ||
13872 | /* This breakpoint could have been pending, and be resolved now, and | |
13873 | if so, we should now have the extra string. If we don't, the | |
13874 | dprintf was malformed when created, but we couldn't tell because | |
13875 | we can't extract the extra string until the location is | |
13876 | resolved. */ | |
13877 | if (b->loc != NULL && b->extra_string == NULL) | |
13878 | error (_("Format string required")); | |
13879 | ||
13880 | /* 1 - connect to target 1, that can run breakpoint commands. | |
13881 | 2 - create a dprintf, which resolves fine. | |
13882 | 3 - disconnect from target 1 | |
13883 | 4 - connect to target 2, that can NOT run breakpoint commands. | |
13884 | ||
13885 | After steps #3/#4, you'll want the dprintf command list to | |
13886 | be updated, because target 1 and 2 may well return different | |
13887 | answers for target_can_run_breakpoint_commands(). | |
13888 | Given absence of finer grained resetting, we get to do | |
13889 | it all the time. */ | |
13890 | if (b->extra_string != NULL) | |
13891 | update_dprintf_command_list (b); | |
13892 | } | |
13893 | ||
2d9442cc HZ |
13894 | /* Implement the "print_recreate" breakpoint_ops method for dprintf. */ |
13895 | ||
13896 | static void | |
13897 | dprintf_print_recreate (struct breakpoint *tp, struct ui_file *fp) | |
13898 | { | |
13899 | fprintf_unfiltered (fp, "dprintf %s%s", tp->addr_string, | |
13900 | tp->extra_string); | |
13901 | print_recreate_thread (tp, fp); | |
13902 | } | |
13903 | ||
9d6e6e84 HZ |
13904 | /* Implement the "after_condition_true" breakpoint_ops method for |
13905 | dprintf. | |
13906 | ||
13907 | dprintf's are implemented with regular commands in their command | |
13908 | list, but we run the commands here instead of before presenting the | |
13909 | stop to the user, as dprintf's don't actually cause a stop. This | |
13910 | also makes it so that the commands of multiple dprintfs at the same | |
13911 | address are all handled. */ | |
13912 | ||
13913 | static void | |
13914 | dprintf_after_condition_true (struct bpstats *bs) | |
13915 | { | |
13916 | struct cleanup *old_chain; | |
13917 | struct bpstats tmp_bs = { NULL }; | |
13918 | struct bpstats *tmp_bs_p = &tmp_bs; | |
13919 | ||
13920 | /* dprintf's never cause a stop. This wasn't set in the | |
13921 | check_status hook instead because that would make the dprintf's | |
13922 | condition not be evaluated. */ | |
13923 | bs->stop = 0; | |
13924 | ||
13925 | /* Run the command list here. Take ownership of it instead of | |
13926 | copying. We never want these commands to run later in | |
13927 | bpstat_do_actions, if a breakpoint that causes a stop happens to | |
13928 | be set at same address as this dprintf, or even if running the | |
13929 | commands here throws. */ | |
13930 | tmp_bs.commands = bs->commands; | |
13931 | bs->commands = NULL; | |
13932 | old_chain = make_cleanup_decref_counted_command_line (&tmp_bs.commands); | |
13933 | ||
13934 | bpstat_do_actions_1 (&tmp_bs_p); | |
13935 | ||
13936 | /* 'tmp_bs.commands' will usually be NULL by now, but | |
13937 | bpstat_do_actions_1 may return early without processing the whole | |
13938 | list. */ | |
13939 | do_cleanups (old_chain); | |
13940 | } | |
13941 | ||
983af33b SDJ |
13942 | /* The breakpoint_ops structure to be used on static tracepoints with |
13943 | markers (`-m'). */ | |
13944 | ||
13945 | static void | |
13946 | strace_marker_create_sals_from_address (char **arg, | |
13947 | struct linespec_result *canonical, | |
13948 | enum bptype type_wanted, | |
13949 | char *addr_start, char **copy_arg) | |
13950 | { | |
13951 | struct linespec_sals lsal; | |
13952 | ||
13953 | lsal.sals = decode_static_tracepoint_spec (arg); | |
13954 | ||
13955 | *copy_arg = savestring (addr_start, *arg - addr_start); | |
13956 | ||
13957 | canonical->addr_string = xstrdup (*copy_arg); | |
13958 | lsal.canonical = xstrdup (*copy_arg); | |
13959 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
13960 | } | |
13961 | ||
13962 | static void | |
13963 | strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13964 | struct linespec_result *canonical, | |
983af33b | 13965 | char *cond_string, |
e7e0cddf | 13966 | char *extra_string, |
983af33b SDJ |
13967 | enum bptype type_wanted, |
13968 | enum bpdisp disposition, | |
13969 | int thread, | |
13970 | int task, int ignore_count, | |
13971 | const struct breakpoint_ops *ops, | |
13972 | int from_tty, int enabled, | |
44f238bb | 13973 | int internal, unsigned flags) |
983af33b SDJ |
13974 | { |
13975 | int i; | |
52d361e1 YQ |
13976 | struct linespec_sals *lsal = VEC_index (linespec_sals, |
13977 | canonical->sals, 0); | |
983af33b SDJ |
13978 | |
13979 | /* If the user is creating a static tracepoint by marker id | |
13980 | (strace -m MARKER_ID), then store the sals index, so that | |
13981 | breakpoint_re_set can try to match up which of the newly | |
13982 | found markers corresponds to this one, and, don't try to | |
13983 | expand multiple locations for each sal, given than SALS | |
13984 | already should contain all sals for MARKER_ID. */ | |
13985 | ||
13986 | for (i = 0; i < lsal->sals.nelts; ++i) | |
13987 | { | |
13988 | struct symtabs_and_lines expanded; | |
13989 | struct tracepoint *tp; | |
13990 | struct cleanup *old_chain; | |
13991 | char *addr_string; | |
13992 | ||
13993 | expanded.nelts = 1; | |
13994 | expanded.sals = &lsal->sals.sals[i]; | |
13995 | ||
13996 | addr_string = xstrdup (canonical->addr_string); | |
13997 | old_chain = make_cleanup (xfree, addr_string); | |
13998 | ||
13999 | tp = XCNEW (struct tracepoint); | |
14000 | init_breakpoint_sal (&tp->base, gdbarch, expanded, | |
14001 | addr_string, NULL, | |
e7e0cddf SS |
14002 | cond_string, extra_string, |
14003 | type_wanted, disposition, | |
983af33b | 14004 | thread, task, ignore_count, ops, |
44f238bb | 14005 | from_tty, enabled, internal, flags, |
983af33b SDJ |
14006 | canonical->special_display); |
14007 | /* Given that its possible to have multiple markers with | |
14008 | the same string id, if the user is creating a static | |
14009 | tracepoint by marker id ("strace -m MARKER_ID"), then | |
14010 | store the sals index, so that breakpoint_re_set can | |
14011 | try to match up which of the newly found markers | |
14012 | corresponds to this one */ | |
14013 | tp->static_trace_marker_id_idx = i; | |
14014 | ||
14015 | install_breakpoint (internal, &tp->base, 0); | |
14016 | ||
14017 | discard_cleanups (old_chain); | |
14018 | } | |
14019 | } | |
14020 | ||
14021 | static void | |
14022 | strace_marker_decode_linespec (struct breakpoint *b, char **s, | |
14023 | struct symtabs_and_lines *sals) | |
14024 | { | |
14025 | struct tracepoint *tp = (struct tracepoint *) b; | |
14026 | ||
14027 | *sals = decode_static_tracepoint_spec (s); | |
14028 | if (sals->nelts > tp->static_trace_marker_id_idx) | |
14029 | { | |
14030 | sals->sals[0] = sals->sals[tp->static_trace_marker_id_idx]; | |
14031 | sals->nelts = 1; | |
14032 | } | |
14033 | else | |
14034 | error (_("marker %s not found"), tp->static_trace_marker_id); | |
14035 | } | |
14036 | ||
14037 | static struct breakpoint_ops strace_marker_breakpoint_ops; | |
14038 | ||
14039 | static int | |
14040 | strace_marker_p (struct breakpoint *b) | |
14041 | { | |
14042 | return b->ops == &strace_marker_breakpoint_ops; | |
14043 | } | |
14044 | ||
53a5351d | 14045 | /* Delete a breakpoint and clean up all traces of it in the data |
f431efe5 | 14046 | structures. */ |
c906108c SS |
14047 | |
14048 | void | |
fba45db2 | 14049 | delete_breakpoint (struct breakpoint *bpt) |
c906108c | 14050 | { |
52f0bd74 | 14051 | struct breakpoint *b; |
c906108c | 14052 | |
8a3fe4f8 | 14053 | gdb_assert (bpt != NULL); |
c906108c | 14054 | |
4a64f543 MS |
14055 | /* Has this bp already been deleted? This can happen because |
14056 | multiple lists can hold pointers to bp's. bpstat lists are | |
14057 | especial culprits. | |
14058 | ||
14059 | One example of this happening is a watchpoint's scope bp. When | |
14060 | the scope bp triggers, we notice that the watchpoint is out of | |
14061 | scope, and delete it. We also delete its scope bp. But the | |
14062 | scope bp is marked "auto-deleting", and is already on a bpstat. | |
14063 | That bpstat is then checked for auto-deleting bp's, which are | |
14064 | deleted. | |
14065 | ||
14066 | A real solution to this problem might involve reference counts in | |
14067 | bp's, and/or giving them pointers back to their referencing | |
14068 | bpstat's, and teaching delete_breakpoint to only free a bp's | |
14069 | storage when no more references were extent. A cheaper bandaid | |
14070 | was chosen. */ | |
c906108c SS |
14071 | if (bpt->type == bp_none) |
14072 | return; | |
14073 | ||
4a64f543 MS |
14074 | /* At least avoid this stale reference until the reference counting |
14075 | of breakpoints gets resolved. */ | |
d0fb5eae | 14076 | if (bpt->related_breakpoint != bpt) |
e5a0a904 | 14077 | { |
d0fb5eae | 14078 | struct breakpoint *related; |
3a5c3e22 | 14079 | struct watchpoint *w; |
d0fb5eae JK |
14080 | |
14081 | if (bpt->type == bp_watchpoint_scope) | |
3a5c3e22 | 14082 | w = (struct watchpoint *) bpt->related_breakpoint; |
d0fb5eae | 14083 | else if (bpt->related_breakpoint->type == bp_watchpoint_scope) |
3a5c3e22 PA |
14084 | w = (struct watchpoint *) bpt; |
14085 | else | |
14086 | w = NULL; | |
14087 | if (w != NULL) | |
14088 | watchpoint_del_at_next_stop (w); | |
d0fb5eae JK |
14089 | |
14090 | /* Unlink bpt from the bpt->related_breakpoint ring. */ | |
14091 | for (related = bpt; related->related_breakpoint != bpt; | |
14092 | related = related->related_breakpoint); | |
14093 | related->related_breakpoint = bpt->related_breakpoint; | |
14094 | bpt->related_breakpoint = bpt; | |
e5a0a904 JK |
14095 | } |
14096 | ||
a9634178 TJB |
14097 | /* watch_command_1 creates a watchpoint but only sets its number if |
14098 | update_watchpoint succeeds in creating its bp_locations. If there's | |
14099 | a problem in that process, we'll be asked to delete the half-created | |
14100 | watchpoint. In that case, don't announce the deletion. */ | |
14101 | if (bpt->number) | |
14102 | observer_notify_breakpoint_deleted (bpt); | |
c906108c | 14103 | |
c906108c SS |
14104 | if (breakpoint_chain == bpt) |
14105 | breakpoint_chain = bpt->next; | |
14106 | ||
c906108c SS |
14107 | ALL_BREAKPOINTS (b) |
14108 | if (b->next == bpt) | |
c5aa993b JM |
14109 | { |
14110 | b->next = bpt->next; | |
14111 | break; | |
14112 | } | |
c906108c | 14113 | |
f431efe5 PA |
14114 | /* Be sure no bpstat's are pointing at the breakpoint after it's |
14115 | been freed. */ | |
14116 | /* FIXME, how can we find all bpstat's? We just check stop_bpstat | |
e5dd4106 | 14117 | in all threads for now. Note that we cannot just remove bpstats |
f431efe5 PA |
14118 | pointing at bpt from the stop_bpstat list entirely, as breakpoint |
14119 | commands are associated with the bpstat; if we remove it here, | |
14120 | then the later call to bpstat_do_actions (&stop_bpstat); in | |
14121 | event-top.c won't do anything, and temporary breakpoints with | |
14122 | commands won't work. */ | |
14123 | ||
14124 | iterate_over_threads (bpstat_remove_breakpoint_callback, bpt); | |
14125 | ||
4a64f543 MS |
14126 | /* Now that breakpoint is removed from breakpoint list, update the |
14127 | global location list. This will remove locations that used to | |
14128 | belong to this breakpoint. Do this before freeing the breakpoint | |
14129 | itself, since remove_breakpoint looks at location's owner. It | |
14130 | might be better design to have location completely | |
14131 | self-contained, but it's not the case now. */ | |
44702360 | 14132 | update_global_location_list (UGLL_DONT_INSERT); |
74960c60 | 14133 | |
348d480f | 14134 | bpt->ops->dtor (bpt); |
4a64f543 MS |
14135 | /* On the chance that someone will soon try again to delete this |
14136 | same bp, we mark it as deleted before freeing its storage. */ | |
c906108c | 14137 | bpt->type = bp_none; |
b8c9b27d | 14138 | xfree (bpt); |
c906108c SS |
14139 | } |
14140 | ||
4d6140d9 AC |
14141 | static void |
14142 | do_delete_breakpoint_cleanup (void *b) | |
14143 | { | |
14144 | delete_breakpoint (b); | |
14145 | } | |
14146 | ||
14147 | struct cleanup * | |
14148 | make_cleanup_delete_breakpoint (struct breakpoint *b) | |
14149 | { | |
14150 | return make_cleanup (do_delete_breakpoint_cleanup, b); | |
14151 | } | |
14152 | ||
51be5b68 PA |
14153 | /* Iterator function to call a user-provided callback function once |
14154 | for each of B and its related breakpoints. */ | |
14155 | ||
14156 | static void | |
14157 | iterate_over_related_breakpoints (struct breakpoint *b, | |
14158 | void (*function) (struct breakpoint *, | |
14159 | void *), | |
14160 | void *data) | |
14161 | { | |
14162 | struct breakpoint *related; | |
14163 | ||
14164 | related = b; | |
14165 | do | |
14166 | { | |
14167 | struct breakpoint *next; | |
14168 | ||
14169 | /* FUNCTION may delete RELATED. */ | |
14170 | next = related->related_breakpoint; | |
14171 | ||
14172 | if (next == related) | |
14173 | { | |
14174 | /* RELATED is the last ring entry. */ | |
14175 | function (related, data); | |
14176 | ||
14177 | /* FUNCTION may have deleted it, so we'd never reach back to | |
14178 | B. There's nothing left to do anyway, so just break | |
14179 | out. */ | |
14180 | break; | |
14181 | } | |
14182 | else | |
14183 | function (related, data); | |
14184 | ||
14185 | related = next; | |
14186 | } | |
14187 | while (related != b); | |
14188 | } | |
95a42b64 TT |
14189 | |
14190 | static void | |
14191 | do_delete_breakpoint (struct breakpoint *b, void *ignore) | |
14192 | { | |
14193 | delete_breakpoint (b); | |
14194 | } | |
14195 | ||
51be5b68 PA |
14196 | /* A callback for map_breakpoint_numbers that calls |
14197 | delete_breakpoint. */ | |
14198 | ||
14199 | static void | |
14200 | do_map_delete_breakpoint (struct breakpoint *b, void *ignore) | |
14201 | { | |
14202 | iterate_over_related_breakpoints (b, do_delete_breakpoint, NULL); | |
14203 | } | |
14204 | ||
c906108c | 14205 | void |
fba45db2 | 14206 | delete_command (char *arg, int from_tty) |
c906108c | 14207 | { |
35df4500 | 14208 | struct breakpoint *b, *b_tmp; |
c906108c | 14209 | |
ea9365bb TT |
14210 | dont_repeat (); |
14211 | ||
c906108c SS |
14212 | if (arg == 0) |
14213 | { | |
14214 | int breaks_to_delete = 0; | |
14215 | ||
46c6471b PA |
14216 | /* Delete all breakpoints if no argument. Do not delete |
14217 | internal breakpoints, these have to be deleted with an | |
14218 | explicit breakpoint number argument. */ | |
c5aa993b | 14219 | ALL_BREAKPOINTS (b) |
46c6471b | 14220 | if (user_breakpoint_p (b)) |
973d738b DJ |
14221 | { |
14222 | breaks_to_delete = 1; | |
14223 | break; | |
14224 | } | |
c906108c SS |
14225 | |
14226 | /* Ask user only if there are some breakpoints to delete. */ | |
14227 | if (!from_tty | |
e2e0b3e5 | 14228 | || (breaks_to_delete && query (_("Delete all breakpoints? ")))) |
c906108c | 14229 | { |
35df4500 | 14230 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 14231 | if (user_breakpoint_p (b)) |
c5aa993b | 14232 | delete_breakpoint (b); |
c906108c SS |
14233 | } |
14234 | } | |
14235 | else | |
51be5b68 | 14236 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
c906108c SS |
14237 | } |
14238 | ||
0d381245 VP |
14239 | static int |
14240 | all_locations_are_pending (struct bp_location *loc) | |
fe3f5fa8 | 14241 | { |
0d381245 | 14242 | for (; loc; loc = loc->next) |
8645ff69 UW |
14243 | if (!loc->shlib_disabled |
14244 | && !loc->pspace->executing_startup) | |
0d381245 VP |
14245 | return 0; |
14246 | return 1; | |
fe3f5fa8 VP |
14247 | } |
14248 | ||
776592bf DE |
14249 | /* Subroutine of update_breakpoint_locations to simplify it. |
14250 | Return non-zero if multiple fns in list LOC have the same name. | |
14251 | Null names are ignored. */ | |
14252 | ||
14253 | static int | |
14254 | ambiguous_names_p (struct bp_location *loc) | |
14255 | { | |
14256 | struct bp_location *l; | |
14257 | htab_t htab = htab_create_alloc (13, htab_hash_string, | |
cc59ec59 MS |
14258 | (int (*) (const void *, |
14259 | const void *)) streq, | |
776592bf DE |
14260 | NULL, xcalloc, xfree); |
14261 | ||
14262 | for (l = loc; l != NULL; l = l->next) | |
14263 | { | |
14264 | const char **slot; | |
14265 | const char *name = l->function_name; | |
14266 | ||
14267 | /* Allow for some names to be NULL, ignore them. */ | |
14268 | if (name == NULL) | |
14269 | continue; | |
14270 | ||
14271 | slot = (const char **) htab_find_slot (htab, (const void *) name, | |
14272 | INSERT); | |
4a64f543 MS |
14273 | /* NOTE: We can assume slot != NULL here because xcalloc never |
14274 | returns NULL. */ | |
776592bf DE |
14275 | if (*slot != NULL) |
14276 | { | |
14277 | htab_delete (htab); | |
14278 | return 1; | |
14279 | } | |
14280 | *slot = name; | |
14281 | } | |
14282 | ||
14283 | htab_delete (htab); | |
14284 | return 0; | |
14285 | } | |
14286 | ||
0fb4aa4b PA |
14287 | /* When symbols change, it probably means the sources changed as well, |
14288 | and it might mean the static tracepoint markers are no longer at | |
14289 | the same address or line numbers they used to be at last we | |
14290 | checked. Losing your static tracepoints whenever you rebuild is | |
14291 | undesirable. This function tries to resync/rematch gdb static | |
14292 | tracepoints with the markers on the target, for static tracepoints | |
14293 | that have not been set by marker id. Static tracepoint that have | |
14294 | been set by marker id are reset by marker id in breakpoint_re_set. | |
14295 | The heuristic is: | |
14296 | ||
14297 | 1) For a tracepoint set at a specific address, look for a marker at | |
14298 | the old PC. If one is found there, assume to be the same marker. | |
14299 | If the name / string id of the marker found is different from the | |
14300 | previous known name, assume that means the user renamed the marker | |
14301 | in the sources, and output a warning. | |
14302 | ||
14303 | 2) For a tracepoint set at a given line number, look for a marker | |
14304 | at the new address of the old line number. If one is found there, | |
14305 | assume to be the same marker. If the name / string id of the | |
14306 | marker found is different from the previous known name, assume that | |
14307 | means the user renamed the marker in the sources, and output a | |
14308 | warning. | |
14309 | ||
14310 | 3) If a marker is no longer found at the same address or line, it | |
14311 | may mean the marker no longer exists. But it may also just mean | |
14312 | the code changed a bit. Maybe the user added a few lines of code | |
14313 | that made the marker move up or down (in line number terms). Ask | |
14314 | the target for info about the marker with the string id as we knew | |
14315 | it. If found, update line number and address in the matching | |
14316 | static tracepoint. This will get confused if there's more than one | |
14317 | marker with the same ID (possible in UST, although unadvised | |
14318 | precisely because it confuses tools). */ | |
14319 | ||
14320 | static struct symtab_and_line | |
14321 | update_static_tracepoint (struct breakpoint *b, struct symtab_and_line sal) | |
14322 | { | |
d9b3f62e | 14323 | struct tracepoint *tp = (struct tracepoint *) b; |
0fb4aa4b PA |
14324 | struct static_tracepoint_marker marker; |
14325 | CORE_ADDR pc; | |
0fb4aa4b PA |
14326 | |
14327 | pc = sal.pc; | |
14328 | if (sal.line) | |
14329 | find_line_pc (sal.symtab, sal.line, &pc); | |
14330 | ||
14331 | if (target_static_tracepoint_marker_at (pc, &marker)) | |
14332 | { | |
d9b3f62e | 14333 | if (strcmp (tp->static_trace_marker_id, marker.str_id) != 0) |
0fb4aa4b PA |
14334 | warning (_("static tracepoint %d changed probed marker from %s to %s"), |
14335 | b->number, | |
d9b3f62e | 14336 | tp->static_trace_marker_id, marker.str_id); |
0fb4aa4b | 14337 | |
d9b3f62e PA |
14338 | xfree (tp->static_trace_marker_id); |
14339 | tp->static_trace_marker_id = xstrdup (marker.str_id); | |
0fb4aa4b PA |
14340 | release_static_tracepoint_marker (&marker); |
14341 | ||
14342 | return sal; | |
14343 | } | |
14344 | ||
14345 | /* Old marker wasn't found on target at lineno. Try looking it up | |
14346 | by string ID. */ | |
14347 | if (!sal.explicit_pc | |
14348 | && sal.line != 0 | |
14349 | && sal.symtab != NULL | |
d9b3f62e | 14350 | && tp->static_trace_marker_id != NULL) |
0fb4aa4b PA |
14351 | { |
14352 | VEC(static_tracepoint_marker_p) *markers; | |
14353 | ||
14354 | markers | |
d9b3f62e | 14355 | = target_static_tracepoint_markers_by_strid (tp->static_trace_marker_id); |
0fb4aa4b PA |
14356 | |
14357 | if (!VEC_empty(static_tracepoint_marker_p, markers)) | |
14358 | { | |
80e1d417 | 14359 | struct symtab_and_line sal2; |
0fb4aa4b | 14360 | struct symbol *sym; |
80e1d417 | 14361 | struct static_tracepoint_marker *tpmarker; |
79a45e25 | 14362 | struct ui_out *uiout = current_uiout; |
0fb4aa4b | 14363 | |
80e1d417 | 14364 | tpmarker = VEC_index (static_tracepoint_marker_p, markers, 0); |
0fb4aa4b | 14365 | |
d9b3f62e | 14366 | xfree (tp->static_trace_marker_id); |
80e1d417 | 14367 | tp->static_trace_marker_id = xstrdup (tpmarker->str_id); |
0fb4aa4b PA |
14368 | |
14369 | warning (_("marker for static tracepoint %d (%s) not " | |
14370 | "found at previous line number"), | |
d9b3f62e | 14371 | b->number, tp->static_trace_marker_id); |
0fb4aa4b | 14372 | |
80e1d417 | 14373 | init_sal (&sal2); |
0fb4aa4b | 14374 | |
80e1d417 | 14375 | sal2.pc = tpmarker->address; |
0fb4aa4b | 14376 | |
80e1d417 AS |
14377 | sal2 = find_pc_line (tpmarker->address, 0); |
14378 | sym = find_pc_sect_function (tpmarker->address, NULL); | |
0fb4aa4b PA |
14379 | ui_out_text (uiout, "Now in "); |
14380 | if (sym) | |
14381 | { | |
14382 | ui_out_field_string (uiout, "func", | |
14383 | SYMBOL_PRINT_NAME (sym)); | |
14384 | ui_out_text (uiout, " at "); | |
14385 | } | |
05cba821 JK |
14386 | ui_out_field_string (uiout, "file", |
14387 | symtab_to_filename_for_display (sal2.symtab)); | |
0fb4aa4b PA |
14388 | ui_out_text (uiout, ":"); |
14389 | ||
14390 | if (ui_out_is_mi_like_p (uiout)) | |
14391 | { | |
0b0865da | 14392 | const char *fullname = symtab_to_fullname (sal2.symtab); |
0fb4aa4b | 14393 | |
f35a17b5 | 14394 | ui_out_field_string (uiout, "fullname", fullname); |
0fb4aa4b PA |
14395 | } |
14396 | ||
80e1d417 | 14397 | ui_out_field_int (uiout, "line", sal2.line); |
0fb4aa4b PA |
14398 | ui_out_text (uiout, "\n"); |
14399 | ||
80e1d417 | 14400 | b->loc->line_number = sal2.line; |
2f202fde | 14401 | b->loc->symtab = sym != NULL ? sal2.symtab : NULL; |
0fb4aa4b PA |
14402 | |
14403 | xfree (b->addr_string); | |
14404 | b->addr_string = xstrprintf ("%s:%d", | |
05cba821 | 14405 | symtab_to_filename_for_display (sal2.symtab), |
f8eba3c6 | 14406 | b->loc->line_number); |
0fb4aa4b PA |
14407 | |
14408 | /* Might be nice to check if function changed, and warn if | |
14409 | so. */ | |
14410 | ||
80e1d417 | 14411 | release_static_tracepoint_marker (tpmarker); |
0fb4aa4b PA |
14412 | } |
14413 | } | |
14414 | return sal; | |
14415 | } | |
14416 | ||
8d3788bd VP |
14417 | /* Returns 1 iff locations A and B are sufficiently same that |
14418 | we don't need to report breakpoint as changed. */ | |
14419 | ||
14420 | static int | |
14421 | locations_are_equal (struct bp_location *a, struct bp_location *b) | |
14422 | { | |
14423 | while (a && b) | |
14424 | { | |
14425 | if (a->address != b->address) | |
14426 | return 0; | |
14427 | ||
14428 | if (a->shlib_disabled != b->shlib_disabled) | |
14429 | return 0; | |
14430 | ||
14431 | if (a->enabled != b->enabled) | |
14432 | return 0; | |
14433 | ||
14434 | a = a->next; | |
14435 | b = b->next; | |
14436 | } | |
14437 | ||
14438 | if ((a == NULL) != (b == NULL)) | |
14439 | return 0; | |
14440 | ||
14441 | return 1; | |
14442 | } | |
14443 | ||
f1310107 TJB |
14444 | /* Create new breakpoint locations for B (a hardware or software breakpoint) |
14445 | based on SALS and SALS_END. If SALS_END.NELTS is not zero, then B is | |
14446 | a ranged breakpoint. */ | |
14447 | ||
0e30163f | 14448 | void |
0d381245 | 14449 | update_breakpoint_locations (struct breakpoint *b, |
f1310107 TJB |
14450 | struct symtabs_and_lines sals, |
14451 | struct symtabs_and_lines sals_end) | |
fe3f5fa8 VP |
14452 | { |
14453 | int i; | |
0d381245 VP |
14454 | struct bp_location *existing_locations = b->loc; |
14455 | ||
f8eba3c6 TT |
14456 | if (sals_end.nelts != 0 && (sals.nelts != 1 || sals_end.nelts != 1)) |
14457 | { | |
14458 | /* Ranged breakpoints have only one start location and one end | |
14459 | location. */ | |
14460 | b->enable_state = bp_disabled; | |
44702360 | 14461 | update_global_location_list (UGLL_MAY_INSERT); |
f8eba3c6 TT |
14462 | printf_unfiltered (_("Could not reset ranged breakpoint %d: " |
14463 | "multiple locations found\n"), | |
14464 | b->number); | |
14465 | return; | |
14466 | } | |
f1310107 | 14467 | |
4a64f543 MS |
14468 | /* If there's no new locations, and all existing locations are |
14469 | pending, don't do anything. This optimizes the common case where | |
14470 | all locations are in the same shared library, that was unloaded. | |
14471 | We'd like to retain the location, so that when the library is | |
14472 | loaded again, we don't loose the enabled/disabled status of the | |
14473 | individual locations. */ | |
0d381245 | 14474 | if (all_locations_are_pending (existing_locations) && sals.nelts == 0) |
fe3f5fa8 VP |
14475 | return; |
14476 | ||
fe3f5fa8 VP |
14477 | b->loc = NULL; |
14478 | ||
0d381245 | 14479 | for (i = 0; i < sals.nelts; ++i) |
fe3f5fa8 | 14480 | { |
f8eba3c6 TT |
14481 | struct bp_location *new_loc; |
14482 | ||
14483 | switch_to_program_space_and_thread (sals.sals[i].pspace); | |
14484 | ||
14485 | new_loc = add_location_to_breakpoint (b, &(sals.sals[i])); | |
fe3f5fa8 | 14486 | |
0d381245 VP |
14487 | /* Reparse conditions, they might contain references to the |
14488 | old symtab. */ | |
14489 | if (b->cond_string != NULL) | |
14490 | { | |
bbc13ae3 | 14491 | const char *s; |
bfd189b1 | 14492 | volatile struct gdb_exception e; |
fe3f5fa8 | 14493 | |
0d381245 VP |
14494 | s = b->cond_string; |
14495 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
14496 | { | |
1bb9788d TT |
14497 | new_loc->cond = parse_exp_1 (&s, sals.sals[i].pc, |
14498 | block_for_pc (sals.sals[i].pc), | |
0d381245 VP |
14499 | 0); |
14500 | } | |
14501 | if (e.reason < 0) | |
14502 | { | |
3e43a32a MS |
14503 | warning (_("failed to reevaluate condition " |
14504 | "for breakpoint %d: %s"), | |
0d381245 VP |
14505 | b->number, e.message); |
14506 | new_loc->enabled = 0; | |
14507 | } | |
14508 | } | |
fe3f5fa8 | 14509 | |
f1310107 TJB |
14510 | if (sals_end.nelts) |
14511 | { | |
14512 | CORE_ADDR end = find_breakpoint_range_end (sals_end.sals[0]); | |
14513 | ||
14514 | new_loc->length = end - sals.sals[0].pc + 1; | |
14515 | } | |
0d381245 | 14516 | } |
fe3f5fa8 | 14517 | |
514f746b AR |
14518 | /* Update locations of permanent breakpoints. */ |
14519 | if (b->enable_state == bp_permanent) | |
14520 | make_breakpoint_permanent (b); | |
14521 | ||
4a64f543 MS |
14522 | /* If possible, carry over 'disable' status from existing |
14523 | breakpoints. */ | |
0d381245 VP |
14524 | { |
14525 | struct bp_location *e = existing_locations; | |
776592bf DE |
14526 | /* If there are multiple breakpoints with the same function name, |
14527 | e.g. for inline functions, comparing function names won't work. | |
14528 | Instead compare pc addresses; this is just a heuristic as things | |
14529 | may have moved, but in practice it gives the correct answer | |
14530 | often enough until a better solution is found. */ | |
14531 | int have_ambiguous_names = ambiguous_names_p (b->loc); | |
14532 | ||
0d381245 VP |
14533 | for (; e; e = e->next) |
14534 | { | |
14535 | if (!e->enabled && e->function_name) | |
14536 | { | |
14537 | struct bp_location *l = b->loc; | |
776592bf DE |
14538 | if (have_ambiguous_names) |
14539 | { | |
14540 | for (; l; l = l->next) | |
f1310107 | 14541 | if (breakpoint_locations_match (e, l)) |
776592bf DE |
14542 | { |
14543 | l->enabled = 0; | |
14544 | break; | |
14545 | } | |
14546 | } | |
14547 | else | |
14548 | { | |
14549 | for (; l; l = l->next) | |
14550 | if (l->function_name | |
14551 | && strcmp (e->function_name, l->function_name) == 0) | |
14552 | { | |
14553 | l->enabled = 0; | |
14554 | break; | |
14555 | } | |
14556 | } | |
0d381245 VP |
14557 | } |
14558 | } | |
14559 | } | |
fe3f5fa8 | 14560 | |
8d3788bd VP |
14561 | if (!locations_are_equal (existing_locations, b->loc)) |
14562 | observer_notify_breakpoint_modified (b); | |
14563 | ||
44702360 | 14564 | update_global_location_list (UGLL_MAY_INSERT); |
fe3f5fa8 VP |
14565 | } |
14566 | ||
ef23e705 TJB |
14567 | /* Find the SaL locations corresponding to the given ADDR_STRING. |
14568 | On return, FOUND will be 1 if any SaL was found, zero otherwise. */ | |
14569 | ||
14570 | static struct symtabs_and_lines | |
14571 | addr_string_to_sals (struct breakpoint *b, char *addr_string, int *found) | |
14572 | { | |
14573 | char *s; | |
02d20e4a | 14574 | struct symtabs_and_lines sals = {0}; |
f8eba3c6 | 14575 | volatile struct gdb_exception e; |
ef23e705 | 14576 | |
983af33b | 14577 | gdb_assert (b->ops != NULL); |
ef23e705 | 14578 | s = addr_string; |
ef23e705 TJB |
14579 | |
14580 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
14581 | { | |
983af33b | 14582 | b->ops->decode_linespec (b, &s, &sals); |
ef23e705 TJB |
14583 | } |
14584 | if (e.reason < 0) | |
14585 | { | |
14586 | int not_found_and_ok = 0; | |
14587 | /* For pending breakpoints, it's expected that parsing will | |
14588 | fail until the right shared library is loaded. User has | |
14589 | already told to create pending breakpoints and don't need | |
14590 | extra messages. If breakpoint is in bp_shlib_disabled | |
14591 | state, then user already saw the message about that | |
14592 | breakpoint being disabled, and don't want to see more | |
14593 | errors. */ | |
58438ac1 | 14594 | if (e.error == NOT_FOUND_ERROR |
ef23e705 TJB |
14595 | && (b->condition_not_parsed |
14596 | || (b->loc && b->loc->shlib_disabled) | |
f8eba3c6 | 14597 | || (b->loc && b->loc->pspace->executing_startup) |
ef23e705 TJB |
14598 | || b->enable_state == bp_disabled)) |
14599 | not_found_and_ok = 1; | |
14600 | ||
14601 | if (!not_found_and_ok) | |
14602 | { | |
14603 | /* We surely don't want to warn about the same breakpoint | |
14604 | 10 times. One solution, implemented here, is disable | |
14605 | the breakpoint on error. Another solution would be to | |
14606 | have separate 'warning emitted' flag. Since this | |
14607 | happens only when a binary has changed, I don't know | |
14608 | which approach is better. */ | |
14609 | b->enable_state = bp_disabled; | |
14610 | throw_exception (e); | |
14611 | } | |
14612 | } | |
14613 | ||
58438ac1 | 14614 | if (e.reason == 0 || e.error != NOT_FOUND_ERROR) |
ef23e705 | 14615 | { |
f8eba3c6 | 14616 | int i; |
ef23e705 | 14617 | |
f8eba3c6 TT |
14618 | for (i = 0; i < sals.nelts; ++i) |
14619 | resolve_sal_pc (&sals.sals[i]); | |
ef23e705 TJB |
14620 | if (b->condition_not_parsed && s && s[0]) |
14621 | { | |
ed1d1739 KS |
14622 | char *cond_string, *extra_string; |
14623 | int thread, task; | |
ef23e705 TJB |
14624 | |
14625 | find_condition_and_thread (s, sals.sals[0].pc, | |
e7e0cddf SS |
14626 | &cond_string, &thread, &task, |
14627 | &extra_string); | |
ef23e705 TJB |
14628 | if (cond_string) |
14629 | b->cond_string = cond_string; | |
14630 | b->thread = thread; | |
14631 | b->task = task; | |
e7e0cddf SS |
14632 | if (extra_string) |
14633 | b->extra_string = extra_string; | |
ef23e705 TJB |
14634 | b->condition_not_parsed = 0; |
14635 | } | |
14636 | ||
983af33b | 14637 | if (b->type == bp_static_tracepoint && !strace_marker_p (b)) |
ef23e705 | 14638 | sals.sals[0] = update_static_tracepoint (b, sals.sals[0]); |
ef23e705 | 14639 | |
58438ac1 TT |
14640 | *found = 1; |
14641 | } | |
14642 | else | |
14643 | *found = 0; | |
ef23e705 TJB |
14644 | |
14645 | return sals; | |
14646 | } | |
14647 | ||
348d480f PA |
14648 | /* The default re_set method, for typical hardware or software |
14649 | breakpoints. Reevaluate the breakpoint and recreate its | |
14650 | locations. */ | |
14651 | ||
14652 | static void | |
28010a5d | 14653 | breakpoint_re_set_default (struct breakpoint *b) |
ef23e705 TJB |
14654 | { |
14655 | int found; | |
f1310107 | 14656 | struct symtabs_and_lines sals, sals_end; |
ef23e705 | 14657 | struct symtabs_and_lines expanded = {0}; |
f1310107 | 14658 | struct symtabs_and_lines expanded_end = {0}; |
ef23e705 TJB |
14659 | |
14660 | sals = addr_string_to_sals (b, b->addr_string, &found); | |
14661 | if (found) | |
14662 | { | |
14663 | make_cleanup (xfree, sals.sals); | |
f8eba3c6 | 14664 | expanded = sals; |
ef23e705 TJB |
14665 | } |
14666 | ||
f1310107 TJB |
14667 | if (b->addr_string_range_end) |
14668 | { | |
14669 | sals_end = addr_string_to_sals (b, b->addr_string_range_end, &found); | |
14670 | if (found) | |
14671 | { | |
14672 | make_cleanup (xfree, sals_end.sals); | |
f8eba3c6 | 14673 | expanded_end = sals_end; |
f1310107 TJB |
14674 | } |
14675 | } | |
14676 | ||
14677 | update_breakpoint_locations (b, expanded, expanded_end); | |
28010a5d PA |
14678 | } |
14679 | ||
983af33b SDJ |
14680 | /* Default method for creating SALs from an address string. It basically |
14681 | calls parse_breakpoint_sals. Return 1 for success, zero for failure. */ | |
14682 | ||
14683 | static void | |
14684 | create_sals_from_address_default (char **arg, | |
14685 | struct linespec_result *canonical, | |
14686 | enum bptype type_wanted, | |
14687 | char *addr_start, char **copy_arg) | |
14688 | { | |
14689 | parse_breakpoint_sals (arg, canonical); | |
14690 | } | |
14691 | ||
14692 | /* Call create_breakpoints_sal for the given arguments. This is the default | |
14693 | function for the `create_breakpoints_sal' method of | |
14694 | breakpoint_ops. */ | |
14695 | ||
14696 | static void | |
14697 | create_breakpoints_sal_default (struct gdbarch *gdbarch, | |
14698 | struct linespec_result *canonical, | |
983af33b | 14699 | char *cond_string, |
e7e0cddf | 14700 | char *extra_string, |
983af33b SDJ |
14701 | enum bptype type_wanted, |
14702 | enum bpdisp disposition, | |
14703 | int thread, | |
14704 | int task, int ignore_count, | |
14705 | const struct breakpoint_ops *ops, | |
14706 | int from_tty, int enabled, | |
44f238bb | 14707 | int internal, unsigned flags) |
983af33b SDJ |
14708 | { |
14709 | create_breakpoints_sal (gdbarch, canonical, cond_string, | |
e7e0cddf | 14710 | extra_string, |
983af33b SDJ |
14711 | type_wanted, disposition, |
14712 | thread, task, ignore_count, ops, from_tty, | |
44f238bb | 14713 | enabled, internal, flags); |
983af33b SDJ |
14714 | } |
14715 | ||
14716 | /* Decode the line represented by S by calling decode_line_full. This is the | |
14717 | default function for the `decode_linespec' method of breakpoint_ops. */ | |
14718 | ||
14719 | static void | |
14720 | decode_linespec_default (struct breakpoint *b, char **s, | |
14721 | struct symtabs_and_lines *sals) | |
14722 | { | |
14723 | struct linespec_result canonical; | |
14724 | ||
14725 | init_linespec_result (&canonical); | |
14726 | decode_line_full (s, DECODE_LINE_FUNFIRSTLINE, | |
14727 | (struct symtab *) NULL, 0, | |
14728 | &canonical, multiple_symbols_all, | |
14729 | b->filter); | |
14730 | ||
14731 | /* We should get 0 or 1 resulting SALs. */ | |
14732 | gdb_assert (VEC_length (linespec_sals, canonical.sals) < 2); | |
14733 | ||
14734 | if (VEC_length (linespec_sals, canonical.sals) > 0) | |
14735 | { | |
14736 | struct linespec_sals *lsal; | |
14737 | ||
14738 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
14739 | *sals = lsal->sals; | |
14740 | /* Arrange it so the destructor does not free the | |
14741 | contents. */ | |
14742 | lsal->sals.sals = NULL; | |
14743 | } | |
14744 | ||
14745 | destroy_linespec_result (&canonical); | |
14746 | } | |
14747 | ||
28010a5d PA |
14748 | /* Prepare the global context for a re-set of breakpoint B. */ |
14749 | ||
14750 | static struct cleanup * | |
14751 | prepare_re_set_context (struct breakpoint *b) | |
14752 | { | |
14753 | struct cleanup *cleanups; | |
14754 | ||
14755 | input_radix = b->input_radix; | |
14756 | cleanups = save_current_space_and_thread (); | |
f8eba3c6 TT |
14757 | if (b->pspace != NULL) |
14758 | switch_to_program_space_and_thread (b->pspace); | |
28010a5d PA |
14759 | set_language (b->language); |
14760 | ||
14761 | return cleanups; | |
ef23e705 TJB |
14762 | } |
14763 | ||
c906108c SS |
14764 | /* Reset a breakpoint given it's struct breakpoint * BINT. |
14765 | The value we return ends up being the return value from catch_errors. | |
14766 | Unused in this case. */ | |
14767 | ||
14768 | static int | |
4efb68b1 | 14769 | breakpoint_re_set_one (void *bint) |
c906108c | 14770 | { |
4a64f543 | 14771 | /* Get past catch_errs. */ |
53a5351d | 14772 | struct breakpoint *b = (struct breakpoint *) bint; |
348d480f | 14773 | struct cleanup *cleanups; |
c906108c | 14774 | |
348d480f PA |
14775 | cleanups = prepare_re_set_context (b); |
14776 | b->ops->re_set (b); | |
14777 | do_cleanups (cleanups); | |
c906108c SS |
14778 | return 0; |
14779 | } | |
14780 | ||
69de3c6a | 14781 | /* Re-set all breakpoints after symbols have been re-loaded. */ |
c906108c | 14782 | void |
69de3c6a | 14783 | breakpoint_re_set (void) |
c906108c | 14784 | { |
35df4500 | 14785 | struct breakpoint *b, *b_tmp; |
c906108c SS |
14786 | enum language save_language; |
14787 | int save_input_radix; | |
6c95b8df | 14788 | struct cleanup *old_chain; |
c5aa993b | 14789 | |
c906108c SS |
14790 | save_language = current_language->la_language; |
14791 | save_input_radix = input_radix; | |
6c95b8df PA |
14792 | old_chain = save_current_program_space (); |
14793 | ||
35df4500 | 14794 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 14795 | { |
4a64f543 | 14796 | /* Format possible error msg. */ |
fe3f5fa8 | 14797 | char *message = xstrprintf ("Error in re-setting breakpoint %d: ", |
9ebf4acf AC |
14798 | b->number); |
14799 | struct cleanup *cleanups = make_cleanup (xfree, message); | |
c5aa993b | 14800 | catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL); |
9ebf4acf | 14801 | do_cleanups (cleanups); |
c5aa993b | 14802 | } |
c906108c SS |
14803 | set_language (save_language); |
14804 | input_radix = save_input_radix; | |
e62c965a | 14805 | |
0756c555 | 14806 | jit_breakpoint_re_set (); |
4efc6507 | 14807 | |
6c95b8df PA |
14808 | do_cleanups (old_chain); |
14809 | ||
af02033e PP |
14810 | create_overlay_event_breakpoint (); |
14811 | create_longjmp_master_breakpoint (); | |
14812 | create_std_terminate_master_breakpoint (); | |
186c406b | 14813 | create_exception_master_breakpoint (); |
c906108c SS |
14814 | } |
14815 | \f | |
c906108c SS |
14816 | /* Reset the thread number of this breakpoint: |
14817 | ||
14818 | - If the breakpoint is for all threads, leave it as-is. | |
4a64f543 | 14819 | - Else, reset it to the current thread for inferior_ptid. */ |
c906108c | 14820 | void |
fba45db2 | 14821 | breakpoint_re_set_thread (struct breakpoint *b) |
c906108c SS |
14822 | { |
14823 | if (b->thread != -1) | |
14824 | { | |
39f77062 KB |
14825 | if (in_thread_list (inferior_ptid)) |
14826 | b->thread = pid_to_thread_id (inferior_ptid); | |
6c95b8df PA |
14827 | |
14828 | /* We're being called after following a fork. The new fork is | |
14829 | selected as current, and unless this was a vfork will have a | |
14830 | different program space from the original thread. Reset that | |
14831 | as well. */ | |
14832 | b->loc->pspace = current_program_space; | |
c906108c SS |
14833 | } |
14834 | } | |
14835 | ||
03ac34d5 MS |
14836 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14837 | If from_tty is nonzero, it prints a message to that effect, | |
14838 | which ends with a period (no newline). */ | |
14839 | ||
c906108c | 14840 | void |
fba45db2 | 14841 | set_ignore_count (int bptnum, int count, int from_tty) |
c906108c | 14842 | { |
52f0bd74 | 14843 | struct breakpoint *b; |
c906108c SS |
14844 | |
14845 | if (count < 0) | |
14846 | count = 0; | |
14847 | ||
14848 | ALL_BREAKPOINTS (b) | |
14849 | if (b->number == bptnum) | |
c5aa993b | 14850 | { |
d77f58be SS |
14851 | if (is_tracepoint (b)) |
14852 | { | |
14853 | if (from_tty && count != 0) | |
14854 | printf_filtered (_("Ignore count ignored for tracepoint %d."), | |
14855 | bptnum); | |
14856 | return; | |
14857 | } | |
14858 | ||
c5aa993b | 14859 | b->ignore_count = count; |
221ea385 KS |
14860 | if (from_tty) |
14861 | { | |
14862 | if (count == 0) | |
3e43a32a MS |
14863 | printf_filtered (_("Will stop next time " |
14864 | "breakpoint %d is reached."), | |
221ea385 KS |
14865 | bptnum); |
14866 | else if (count == 1) | |
a3f17187 | 14867 | printf_filtered (_("Will ignore next crossing of breakpoint %d."), |
221ea385 KS |
14868 | bptnum); |
14869 | else | |
3e43a32a MS |
14870 | printf_filtered (_("Will ignore next %d " |
14871 | "crossings of breakpoint %d."), | |
221ea385 KS |
14872 | count, bptnum); |
14873 | } | |
8d3788bd | 14874 | observer_notify_breakpoint_modified (b); |
c5aa993b JM |
14875 | return; |
14876 | } | |
c906108c | 14877 | |
8a3fe4f8 | 14878 | error (_("No breakpoint number %d."), bptnum); |
c906108c SS |
14879 | } |
14880 | ||
c906108c SS |
14881 | /* Command to set ignore-count of breakpoint N to COUNT. */ |
14882 | ||
14883 | static void | |
fba45db2 | 14884 | ignore_command (char *args, int from_tty) |
c906108c SS |
14885 | { |
14886 | char *p = args; | |
52f0bd74 | 14887 | int num; |
c906108c SS |
14888 | |
14889 | if (p == 0) | |
e2e0b3e5 | 14890 | error_no_arg (_("a breakpoint number")); |
c5aa993b | 14891 | |
c906108c | 14892 | num = get_number (&p); |
5c44784c | 14893 | if (num == 0) |
8a3fe4f8 | 14894 | error (_("bad breakpoint number: '%s'"), args); |
c906108c | 14895 | if (*p == 0) |
8a3fe4f8 | 14896 | error (_("Second argument (specified ignore-count) is missing.")); |
c906108c SS |
14897 | |
14898 | set_ignore_count (num, | |
14899 | longest_to_int (value_as_long (parse_and_eval (p))), | |
14900 | from_tty); | |
221ea385 KS |
14901 | if (from_tty) |
14902 | printf_filtered ("\n"); | |
c906108c SS |
14903 | } |
14904 | \f | |
14905 | /* Call FUNCTION on each of the breakpoints | |
14906 | whose numbers are given in ARGS. */ | |
14907 | ||
14908 | static void | |
95a42b64 TT |
14909 | map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *, |
14910 | void *), | |
14911 | void *data) | |
c906108c | 14912 | { |
52f0bd74 AC |
14913 | int num; |
14914 | struct breakpoint *b, *tmp; | |
11cf8741 | 14915 | int match; |
197f0a60 | 14916 | struct get_number_or_range_state state; |
c906108c | 14917 | |
197f0a60 | 14918 | if (args == 0) |
e2e0b3e5 | 14919 | error_no_arg (_("one or more breakpoint numbers")); |
c906108c | 14920 | |
197f0a60 TT |
14921 | init_number_or_range (&state, args); |
14922 | ||
14923 | while (!state.finished) | |
c906108c | 14924 | { |
e799154c | 14925 | const char *p = state.string; |
197f0a60 | 14926 | |
11cf8741 | 14927 | match = 0; |
c5aa993b | 14928 | |
197f0a60 | 14929 | num = get_number_or_range (&state); |
5c44784c | 14930 | if (num == 0) |
c5aa993b | 14931 | { |
8a3fe4f8 | 14932 | warning (_("bad breakpoint number at or near '%s'"), p); |
5c44784c JM |
14933 | } |
14934 | else | |
14935 | { | |
14936 | ALL_BREAKPOINTS_SAFE (b, tmp) | |
14937 | if (b->number == num) | |
14938 | { | |
11cf8741 | 14939 | match = 1; |
cdac0397 | 14940 | function (b, data); |
11cf8741 | 14941 | break; |
5c44784c | 14942 | } |
11cf8741 | 14943 | if (match == 0) |
a3f17187 | 14944 | printf_unfiltered (_("No breakpoint number %d.\n"), num); |
c5aa993b | 14945 | } |
c906108c SS |
14946 | } |
14947 | } | |
14948 | ||
0d381245 VP |
14949 | static struct bp_location * |
14950 | find_location_by_number (char *number) | |
14951 | { | |
14952 | char *dot = strchr (number, '.'); | |
14953 | char *p1; | |
14954 | int bp_num; | |
14955 | int loc_num; | |
14956 | struct breakpoint *b; | |
14957 | struct bp_location *loc; | |
14958 | ||
14959 | *dot = '\0'; | |
14960 | ||
14961 | p1 = number; | |
197f0a60 | 14962 | bp_num = get_number (&p1); |
0d381245 VP |
14963 | if (bp_num == 0) |
14964 | error (_("Bad breakpoint number '%s'"), number); | |
14965 | ||
14966 | ALL_BREAKPOINTS (b) | |
14967 | if (b->number == bp_num) | |
14968 | { | |
14969 | break; | |
14970 | } | |
14971 | ||
14972 | if (!b || b->number != bp_num) | |
14973 | error (_("Bad breakpoint number '%s'"), number); | |
14974 | ||
14975 | p1 = dot+1; | |
197f0a60 | 14976 | loc_num = get_number (&p1); |
0d381245 VP |
14977 | if (loc_num == 0) |
14978 | error (_("Bad breakpoint location number '%s'"), number); | |
14979 | ||
14980 | --loc_num; | |
14981 | loc = b->loc; | |
14982 | for (;loc_num && loc; --loc_num, loc = loc->next) | |
14983 | ; | |
14984 | if (!loc) | |
14985 | error (_("Bad breakpoint location number '%s'"), dot+1); | |
14986 | ||
14987 | return loc; | |
14988 | } | |
14989 | ||
14990 | ||
1900040c MS |
14991 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14992 | If from_tty is nonzero, it prints a message to that effect, | |
14993 | which ends with a period (no newline). */ | |
14994 | ||
c906108c | 14995 | void |
fba45db2 | 14996 | disable_breakpoint (struct breakpoint *bpt) |
c906108c SS |
14997 | { |
14998 | /* Never disable a watchpoint scope breakpoint; we want to | |
14999 | hit them when we leave scope so we can delete both the | |
15000 | watchpoint and its scope breakpoint at that time. */ | |
15001 | if (bpt->type == bp_watchpoint_scope) | |
15002 | return; | |
15003 | ||
c2c6d25f | 15004 | /* You can't disable permanent breakpoints. */ |
b5de0fa7 | 15005 | if (bpt->enable_state == bp_permanent) |
c2c6d25f JM |
15006 | return; |
15007 | ||
b5de0fa7 | 15008 | bpt->enable_state = bp_disabled; |
c906108c | 15009 | |
b775012e LM |
15010 | /* Mark breakpoint locations modified. */ |
15011 | mark_breakpoint_modified (bpt); | |
15012 | ||
d248b706 KY |
15013 | if (target_supports_enable_disable_tracepoint () |
15014 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
15015 | { | |
15016 | struct bp_location *location; | |
15017 | ||
15018 | for (location = bpt->loc; location; location = location->next) | |
15019 | target_disable_tracepoint (location); | |
15020 | } | |
15021 | ||
44702360 | 15022 | update_global_location_list (UGLL_DONT_INSERT); |
c906108c | 15023 | |
8d3788bd | 15024 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
15025 | } |
15026 | ||
51be5b68 PA |
15027 | /* A callback for iterate_over_related_breakpoints. */ |
15028 | ||
15029 | static void | |
15030 | do_disable_breakpoint (struct breakpoint *b, void *ignore) | |
15031 | { | |
15032 | disable_breakpoint (b); | |
15033 | } | |
15034 | ||
95a42b64 TT |
15035 | /* A callback for map_breakpoint_numbers that calls |
15036 | disable_breakpoint. */ | |
15037 | ||
15038 | static void | |
15039 | do_map_disable_breakpoint (struct breakpoint *b, void *ignore) | |
15040 | { | |
51be5b68 | 15041 | iterate_over_related_breakpoints (b, do_disable_breakpoint, NULL); |
95a42b64 TT |
15042 | } |
15043 | ||
c906108c | 15044 | static void |
fba45db2 | 15045 | disable_command (char *args, int from_tty) |
c906108c | 15046 | { |
c906108c | 15047 | if (args == 0) |
46c6471b PA |
15048 | { |
15049 | struct breakpoint *bpt; | |
15050 | ||
15051 | ALL_BREAKPOINTS (bpt) | |
15052 | if (user_breakpoint_p (bpt)) | |
15053 | disable_breakpoint (bpt); | |
15054 | } | |
9eaabc75 | 15055 | else |
0d381245 | 15056 | { |
9eaabc75 MW |
15057 | char *num = extract_arg (&args); |
15058 | ||
15059 | while (num) | |
d248b706 | 15060 | { |
9eaabc75 | 15061 | if (strchr (num, '.')) |
b775012e | 15062 | { |
9eaabc75 MW |
15063 | struct bp_location *loc = find_location_by_number (num); |
15064 | ||
15065 | if (loc) | |
15066 | { | |
15067 | if (loc->enabled) | |
15068 | { | |
15069 | loc->enabled = 0; | |
15070 | mark_breakpoint_location_modified (loc); | |
15071 | } | |
15072 | if (target_supports_enable_disable_tracepoint () | |
15073 | && current_trace_status ()->running && loc->owner | |
15074 | && is_tracepoint (loc->owner)) | |
15075 | target_disable_tracepoint (loc); | |
15076 | } | |
44702360 | 15077 | update_global_location_list (UGLL_DONT_INSERT); |
b775012e | 15078 | } |
9eaabc75 MW |
15079 | else |
15080 | map_breakpoint_numbers (num, do_map_disable_breakpoint, NULL); | |
15081 | num = extract_arg (&args); | |
d248b706 | 15082 | } |
0d381245 | 15083 | } |
c906108c SS |
15084 | } |
15085 | ||
15086 | static void | |
816338b5 SS |
15087 | enable_breakpoint_disp (struct breakpoint *bpt, enum bpdisp disposition, |
15088 | int count) | |
c906108c | 15089 | { |
afe38095 | 15090 | int target_resources_ok; |
c906108c SS |
15091 | |
15092 | if (bpt->type == bp_hardware_breakpoint) | |
15093 | { | |
15094 | int i; | |
c5aa993b | 15095 | i = hw_breakpoint_used_count (); |
53a5351d | 15096 | target_resources_ok = |
d92524f1 | 15097 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, |
53a5351d | 15098 | i + 1, 0); |
c906108c | 15099 | if (target_resources_ok == 0) |
8a3fe4f8 | 15100 | error (_("No hardware breakpoint support in the target.")); |
c906108c | 15101 | else if (target_resources_ok < 0) |
8a3fe4f8 | 15102 | error (_("Hardware breakpoints used exceeds limit.")); |
c906108c SS |
15103 | } |
15104 | ||
cc60f2e3 | 15105 | if (is_watchpoint (bpt)) |
c906108c | 15106 | { |
d07205c2 JK |
15107 | /* Initialize it just to avoid a GCC false warning. */ |
15108 | enum enable_state orig_enable_state = 0; | |
bfd189b1 | 15109 | volatile struct gdb_exception e; |
dde02812 ES |
15110 | |
15111 | TRY_CATCH (e, RETURN_MASK_ALL) | |
c906108c | 15112 | { |
3a5c3e22 PA |
15113 | struct watchpoint *w = (struct watchpoint *) bpt; |
15114 | ||
1e718ff1 TJB |
15115 | orig_enable_state = bpt->enable_state; |
15116 | bpt->enable_state = bp_enabled; | |
3a5c3e22 | 15117 | update_watchpoint (w, 1 /* reparse */); |
c906108c | 15118 | } |
dde02812 | 15119 | if (e.reason < 0) |
c5aa993b | 15120 | { |
1e718ff1 | 15121 | bpt->enable_state = orig_enable_state; |
dde02812 ES |
15122 | exception_fprintf (gdb_stderr, e, _("Cannot enable watchpoint %d: "), |
15123 | bpt->number); | |
15124 | return; | |
c5aa993b | 15125 | } |
c906108c | 15126 | } |
0101ce28 | 15127 | |
b4c291bb KH |
15128 | if (bpt->enable_state != bp_permanent) |
15129 | bpt->enable_state = bp_enabled; | |
d248b706 | 15130 | |
b775012e LM |
15131 | bpt->enable_state = bp_enabled; |
15132 | ||
15133 | /* Mark breakpoint locations modified. */ | |
15134 | mark_breakpoint_modified (bpt); | |
15135 | ||
d248b706 KY |
15136 | if (target_supports_enable_disable_tracepoint () |
15137 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
15138 | { | |
15139 | struct bp_location *location; | |
15140 | ||
15141 | for (location = bpt->loc; location; location = location->next) | |
15142 | target_enable_tracepoint (location); | |
15143 | } | |
15144 | ||
b4c291bb | 15145 | bpt->disposition = disposition; |
816338b5 | 15146 | bpt->enable_count = count; |
44702360 | 15147 | update_global_location_list (UGLL_MAY_INSERT); |
9c97429f | 15148 | |
8d3788bd | 15149 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
15150 | } |
15151 | ||
fe3f5fa8 | 15152 | |
c906108c | 15153 | void |
fba45db2 | 15154 | enable_breakpoint (struct breakpoint *bpt) |
c906108c | 15155 | { |
816338b5 | 15156 | enable_breakpoint_disp (bpt, bpt->disposition, 0); |
51be5b68 PA |
15157 | } |
15158 | ||
15159 | static void | |
15160 | do_enable_breakpoint (struct breakpoint *bpt, void *arg) | |
15161 | { | |
15162 | enable_breakpoint (bpt); | |
c906108c SS |
15163 | } |
15164 | ||
95a42b64 TT |
15165 | /* A callback for map_breakpoint_numbers that calls |
15166 | enable_breakpoint. */ | |
15167 | ||
15168 | static void | |
15169 | do_map_enable_breakpoint (struct breakpoint *b, void *ignore) | |
15170 | { | |
51be5b68 | 15171 | iterate_over_related_breakpoints (b, do_enable_breakpoint, NULL); |
95a42b64 TT |
15172 | } |
15173 | ||
c906108c SS |
15174 | /* The enable command enables the specified breakpoints (or all defined |
15175 | breakpoints) so they once again become (or continue to be) effective | |
1272ad14 | 15176 | in stopping the inferior. */ |
c906108c | 15177 | |
c906108c | 15178 | static void |
fba45db2 | 15179 | enable_command (char *args, int from_tty) |
c906108c | 15180 | { |
c906108c | 15181 | if (args == 0) |
46c6471b PA |
15182 | { |
15183 | struct breakpoint *bpt; | |
15184 | ||
15185 | ALL_BREAKPOINTS (bpt) | |
15186 | if (user_breakpoint_p (bpt)) | |
15187 | enable_breakpoint (bpt); | |
15188 | } | |
9eaabc75 | 15189 | else |
0d381245 | 15190 | { |
9eaabc75 MW |
15191 | char *num = extract_arg (&args); |
15192 | ||
15193 | while (num) | |
d248b706 | 15194 | { |
9eaabc75 | 15195 | if (strchr (num, '.')) |
b775012e | 15196 | { |
9eaabc75 MW |
15197 | struct bp_location *loc = find_location_by_number (num); |
15198 | ||
15199 | if (loc) | |
15200 | { | |
15201 | if (!loc->enabled) | |
15202 | { | |
15203 | loc->enabled = 1; | |
15204 | mark_breakpoint_location_modified (loc); | |
15205 | } | |
15206 | if (target_supports_enable_disable_tracepoint () | |
15207 | && current_trace_status ()->running && loc->owner | |
15208 | && is_tracepoint (loc->owner)) | |
15209 | target_enable_tracepoint (loc); | |
15210 | } | |
44702360 | 15211 | update_global_location_list (UGLL_MAY_INSERT); |
b775012e | 15212 | } |
9eaabc75 MW |
15213 | else |
15214 | map_breakpoint_numbers (num, do_map_enable_breakpoint, NULL); | |
15215 | num = extract_arg (&args); | |
d248b706 | 15216 | } |
0d381245 | 15217 | } |
c906108c SS |
15218 | } |
15219 | ||
816338b5 SS |
15220 | /* This struct packages up disposition data for application to multiple |
15221 | breakpoints. */ | |
15222 | ||
15223 | struct disp_data | |
15224 | { | |
15225 | enum bpdisp disp; | |
15226 | int count; | |
15227 | }; | |
15228 | ||
c906108c | 15229 | static void |
51be5b68 PA |
15230 | do_enable_breakpoint_disp (struct breakpoint *bpt, void *arg) |
15231 | { | |
816338b5 | 15232 | struct disp_data disp_data = *(struct disp_data *) arg; |
51be5b68 | 15233 | |
816338b5 | 15234 | enable_breakpoint_disp (bpt, disp_data.disp, disp_data.count); |
51be5b68 PA |
15235 | } |
15236 | ||
15237 | static void | |
15238 | do_map_enable_once_breakpoint (struct breakpoint *bpt, void *ignore) | |
c906108c | 15239 | { |
816338b5 | 15240 | struct disp_data disp = { disp_disable, 1 }; |
51be5b68 PA |
15241 | |
15242 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
15243 | } |
15244 | ||
c906108c | 15245 | static void |
fba45db2 | 15246 | enable_once_command (char *args, int from_tty) |
c906108c | 15247 | { |
51be5b68 | 15248 | map_breakpoint_numbers (args, do_map_enable_once_breakpoint, NULL); |
c906108c SS |
15249 | } |
15250 | ||
816338b5 SS |
15251 | static void |
15252 | do_map_enable_count_breakpoint (struct breakpoint *bpt, void *countptr) | |
15253 | { | |
15254 | struct disp_data disp = { disp_disable, *(int *) countptr }; | |
15255 | ||
15256 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
15257 | } | |
15258 | ||
15259 | static void | |
15260 | enable_count_command (char *args, int from_tty) | |
15261 | { | |
15262 | int count = get_number (&args); | |
15263 | ||
15264 | map_breakpoint_numbers (args, do_map_enable_count_breakpoint, &count); | |
15265 | } | |
15266 | ||
c906108c | 15267 | static void |
51be5b68 | 15268 | do_map_enable_delete_breakpoint (struct breakpoint *bpt, void *ignore) |
c906108c | 15269 | { |
816338b5 | 15270 | struct disp_data disp = { disp_del, 1 }; |
51be5b68 PA |
15271 | |
15272 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
15273 | } |
15274 | ||
c906108c | 15275 | static void |
fba45db2 | 15276 | enable_delete_command (char *args, int from_tty) |
c906108c | 15277 | { |
51be5b68 | 15278 | map_breakpoint_numbers (args, do_map_enable_delete_breakpoint, NULL); |
c906108c SS |
15279 | } |
15280 | \f | |
fa8d40ab JJ |
15281 | static void |
15282 | set_breakpoint_cmd (char *args, int from_tty) | |
15283 | { | |
15284 | } | |
15285 | ||
15286 | static void | |
15287 | show_breakpoint_cmd (char *args, int from_tty) | |
15288 | { | |
15289 | } | |
15290 | ||
1f3b5d1b PP |
15291 | /* Invalidate last known value of any hardware watchpoint if |
15292 | the memory which that value represents has been written to by | |
15293 | GDB itself. */ | |
15294 | ||
15295 | static void | |
8de0566d YQ |
15296 | invalidate_bp_value_on_memory_change (struct inferior *inferior, |
15297 | CORE_ADDR addr, ssize_t len, | |
1f3b5d1b PP |
15298 | const bfd_byte *data) |
15299 | { | |
15300 | struct breakpoint *bp; | |
15301 | ||
15302 | ALL_BREAKPOINTS (bp) | |
15303 | if (bp->enable_state == bp_enabled | |
3a5c3e22 | 15304 | && bp->type == bp_hardware_watchpoint) |
1f3b5d1b | 15305 | { |
3a5c3e22 | 15306 | struct watchpoint *wp = (struct watchpoint *) bp; |
1f3b5d1b | 15307 | |
3a5c3e22 PA |
15308 | if (wp->val_valid && wp->val) |
15309 | { | |
15310 | struct bp_location *loc; | |
15311 | ||
15312 | for (loc = bp->loc; loc != NULL; loc = loc->next) | |
15313 | if (loc->loc_type == bp_loc_hardware_watchpoint | |
15314 | && loc->address + loc->length > addr | |
15315 | && addr + len > loc->address) | |
15316 | { | |
15317 | value_free (wp->val); | |
15318 | wp->val = NULL; | |
15319 | wp->val_valid = 0; | |
15320 | } | |
15321 | } | |
1f3b5d1b PP |
15322 | } |
15323 | } | |
15324 | ||
8181d85f DJ |
15325 | /* Create and insert a raw software breakpoint at PC. Return an |
15326 | identifier, which should be used to remove the breakpoint later. | |
15327 | In general, places which call this should be using something on the | |
15328 | breakpoint chain instead; this function should be eliminated | |
15329 | someday. */ | |
15330 | ||
15331 | void * | |
6c95b8df PA |
15332 | deprecated_insert_raw_breakpoint (struct gdbarch *gdbarch, |
15333 | struct address_space *aspace, CORE_ADDR pc) | |
8181d85f DJ |
15334 | { |
15335 | struct bp_target_info *bp_tgt; | |
ef370185 | 15336 | struct bp_location *bl; |
8181d85f | 15337 | |
41bf6aca | 15338 | bp_tgt = XCNEW (struct bp_target_info); |
8181d85f | 15339 | |
6c95b8df | 15340 | bp_tgt->placed_address_space = aspace; |
8181d85f | 15341 | bp_tgt->placed_address = pc; |
6c95b8df | 15342 | |
ef370185 JB |
15343 | /* If an unconditional non-raw breakpoint is already inserted at |
15344 | that location, there's no need to insert another. However, with | |
15345 | target-side evaluation of breakpoint conditions, if the | |
15346 | breakpoint that is currently inserted on the target is | |
15347 | conditional, we need to make it unconditional. Note that a | |
15348 | breakpoint with target-side commands is not reported even if | |
15349 | unconditional, so we need to remove the commands from the target | |
15350 | as well. */ | |
15351 | bl = find_non_raw_software_breakpoint_inserted_here (aspace, pc); | |
15352 | if (bl != NULL | |
15353 | && VEC_empty (agent_expr_p, bl->target_info.conditions) | |
15354 | && VEC_empty (agent_expr_p, bl->target_info.tcommands)) | |
15355 | { | |
15356 | bp_target_info_copy_insertion_state (bp_tgt, &bl->target_info); | |
15357 | return bp_tgt; | |
15358 | } | |
15359 | ||
a6d9a66e | 15360 | if (target_insert_breakpoint (gdbarch, bp_tgt) != 0) |
8181d85f DJ |
15361 | { |
15362 | /* Could not insert the breakpoint. */ | |
15363 | xfree (bp_tgt); | |
15364 | return NULL; | |
15365 | } | |
15366 | ||
15367 | return bp_tgt; | |
15368 | } | |
15369 | ||
4a64f543 MS |
15370 | /* Remove a breakpoint BP inserted by |
15371 | deprecated_insert_raw_breakpoint. */ | |
8181d85f DJ |
15372 | |
15373 | int | |
a6d9a66e | 15374 | deprecated_remove_raw_breakpoint (struct gdbarch *gdbarch, void *bp) |
8181d85f DJ |
15375 | { |
15376 | struct bp_target_info *bp_tgt = bp; | |
ef370185 JB |
15377 | struct address_space *aspace = bp_tgt->placed_address_space; |
15378 | CORE_ADDR address = bp_tgt->placed_address; | |
15379 | struct bp_location *bl; | |
8181d85f DJ |
15380 | int ret; |
15381 | ||
ef370185 JB |
15382 | bl = find_non_raw_software_breakpoint_inserted_here (aspace, address); |
15383 | ||
15384 | /* Only remove the raw breakpoint if there are no other non-raw | |
15385 | breakpoints still inserted at this location. Otherwise, we would | |
15386 | be effectively disabling those breakpoints. */ | |
15387 | if (bl == NULL) | |
15388 | ret = target_remove_breakpoint (gdbarch, bp_tgt); | |
15389 | else if (!VEC_empty (agent_expr_p, bl->target_info.conditions) | |
15390 | || !VEC_empty (agent_expr_p, bl->target_info.tcommands)) | |
15391 | { | |
15392 | /* The target is evaluating conditions, and when we inserted the | |
15393 | software single-step breakpoint, we had made the breakpoint | |
15394 | unconditional and command-less on the target side. Reinsert | |
15395 | to restore the conditions/commands. */ | |
15396 | ret = target_insert_breakpoint (bl->gdbarch, &bl->target_info); | |
15397 | } | |
15398 | else | |
15399 | ret = 0; | |
15400 | ||
8181d85f DJ |
15401 | xfree (bp_tgt); |
15402 | ||
15403 | return ret; | |
15404 | } | |
15405 | ||
8181d85f DJ |
15406 | /* Create and insert a breakpoint for software single step. */ |
15407 | ||
15408 | void | |
6c95b8df | 15409 | insert_single_step_breakpoint (struct gdbarch *gdbarch, |
4a64f543 MS |
15410 | struct address_space *aspace, |
15411 | CORE_ADDR next_pc) | |
8181d85f DJ |
15412 | { |
15413 | void **bpt_p; | |
15414 | ||
15415 | if (single_step_breakpoints[0] == NULL) | |
a6d9a66e UW |
15416 | { |
15417 | bpt_p = &single_step_breakpoints[0]; | |
15418 | single_step_gdbarch[0] = gdbarch; | |
15419 | } | |
8181d85f DJ |
15420 | else |
15421 | { | |
15422 | gdb_assert (single_step_breakpoints[1] == NULL); | |
15423 | bpt_p = &single_step_breakpoints[1]; | |
a6d9a66e | 15424 | single_step_gdbarch[1] = gdbarch; |
8181d85f DJ |
15425 | } |
15426 | ||
4a64f543 MS |
15427 | /* NOTE drow/2006-04-11: A future improvement to this function would |
15428 | be to only create the breakpoints once, and actually put them on | |
15429 | the breakpoint chain. That would let us use set_raw_breakpoint. | |
15430 | We could adjust the addresses each time they were needed. Doing | |
15431 | this requires corresponding changes elsewhere where single step | |
15432 | breakpoints are handled, however. So, for now, we use this. */ | |
8181d85f | 15433 | |
6c95b8df | 15434 | *bpt_p = deprecated_insert_raw_breakpoint (gdbarch, aspace, next_pc); |
8181d85f | 15435 | if (*bpt_p == NULL) |
5af949e3 UW |
15436 | error (_("Could not insert single-step breakpoint at %s"), |
15437 | paddress (gdbarch, next_pc)); | |
8181d85f DJ |
15438 | } |
15439 | ||
f02253f1 HZ |
15440 | /* Check if the breakpoints used for software single stepping |
15441 | were inserted or not. */ | |
15442 | ||
15443 | int | |
15444 | single_step_breakpoints_inserted (void) | |
15445 | { | |
15446 | return (single_step_breakpoints[0] != NULL | |
15447 | || single_step_breakpoints[1] != NULL); | |
15448 | } | |
15449 | ||
8181d85f DJ |
15450 | /* Remove and delete any breakpoints used for software single step. */ |
15451 | ||
15452 | void | |
15453 | remove_single_step_breakpoints (void) | |
15454 | { | |
15455 | gdb_assert (single_step_breakpoints[0] != NULL); | |
15456 | ||
15457 | /* See insert_single_step_breakpoint for more about this deprecated | |
15458 | call. */ | |
a6d9a66e UW |
15459 | deprecated_remove_raw_breakpoint (single_step_gdbarch[0], |
15460 | single_step_breakpoints[0]); | |
15461 | single_step_gdbarch[0] = NULL; | |
8181d85f DJ |
15462 | single_step_breakpoints[0] = NULL; |
15463 | ||
15464 | if (single_step_breakpoints[1] != NULL) | |
15465 | { | |
a6d9a66e UW |
15466 | deprecated_remove_raw_breakpoint (single_step_gdbarch[1], |
15467 | single_step_breakpoints[1]); | |
15468 | single_step_gdbarch[1] = NULL; | |
8181d85f DJ |
15469 | single_step_breakpoints[1] = NULL; |
15470 | } | |
15471 | } | |
15472 | ||
d03285ec UW |
15473 | /* Delete software single step breakpoints without removing them from |
15474 | the inferior. This is intended to be used if the inferior's address | |
15475 | space where they were inserted is already gone, e.g. after exit or | |
15476 | exec. */ | |
15477 | ||
15478 | void | |
15479 | cancel_single_step_breakpoints (void) | |
15480 | { | |
15481 | int i; | |
15482 | ||
15483 | for (i = 0; i < 2; i++) | |
15484 | if (single_step_breakpoints[i]) | |
15485 | { | |
15486 | xfree (single_step_breakpoints[i]); | |
15487 | single_step_breakpoints[i] = NULL; | |
15488 | single_step_gdbarch[i] = NULL; | |
15489 | } | |
15490 | } | |
15491 | ||
15492 | /* Detach software single-step breakpoints from INFERIOR_PTID without | |
15493 | removing them. */ | |
15494 | ||
15495 | static void | |
15496 | detach_single_step_breakpoints (void) | |
15497 | { | |
15498 | int i; | |
15499 | ||
15500 | for (i = 0; i < 2; i++) | |
15501 | if (single_step_breakpoints[i]) | |
15502 | target_remove_breakpoint (single_step_gdbarch[i], | |
15503 | single_step_breakpoints[i]); | |
15504 | } | |
15505 | ||
ef370185 JB |
15506 | /* Find the software single-step breakpoint that inserted at PC. |
15507 | Returns its slot if found, and -1 if not found. */ | |
1aafd4da | 15508 | |
ef370185 JB |
15509 | static int |
15510 | find_single_step_breakpoint (struct address_space *aspace, | |
15511 | CORE_ADDR pc) | |
1aafd4da UW |
15512 | { |
15513 | int i; | |
15514 | ||
15515 | for (i = 0; i < 2; i++) | |
15516 | { | |
15517 | struct bp_target_info *bp_tgt = single_step_breakpoints[i]; | |
6c95b8df PA |
15518 | if (bp_tgt |
15519 | && breakpoint_address_match (bp_tgt->placed_address_space, | |
15520 | bp_tgt->placed_address, | |
15521 | aspace, pc)) | |
ef370185 | 15522 | return i; |
1aafd4da UW |
15523 | } |
15524 | ||
ef370185 JB |
15525 | return -1; |
15526 | } | |
15527 | ||
15528 | /* Check whether a software single-step breakpoint is inserted at | |
15529 | PC. */ | |
15530 | ||
15531 | int | |
15532 | single_step_breakpoint_inserted_here_p (struct address_space *aspace, | |
15533 | CORE_ADDR pc) | |
15534 | { | |
15535 | return find_single_step_breakpoint (aspace, pc) >= 0; | |
1aafd4da UW |
15536 | } |
15537 | ||
a96d9b2e SDJ |
15538 | /* Returns 0 if 'bp' is NOT a syscall catchpoint, |
15539 | non-zero otherwise. */ | |
15540 | static int | |
15541 | is_syscall_catchpoint_enabled (struct breakpoint *bp) | |
15542 | { | |
15543 | if (syscall_catchpoint_p (bp) | |
15544 | && bp->enable_state != bp_disabled | |
15545 | && bp->enable_state != bp_call_disabled) | |
15546 | return 1; | |
15547 | else | |
15548 | return 0; | |
15549 | } | |
15550 | ||
15551 | int | |
15552 | catch_syscall_enabled (void) | |
15553 | { | |
fa3064dd YQ |
15554 | struct catch_syscall_inferior_data *inf_data |
15555 | = get_catch_syscall_inferior_data (current_inferior ()); | |
a96d9b2e | 15556 | |
fa3064dd | 15557 | return inf_data->total_syscalls_count != 0; |
a96d9b2e SDJ |
15558 | } |
15559 | ||
15560 | int | |
15561 | catching_syscall_number (int syscall_number) | |
15562 | { | |
15563 | struct breakpoint *bp; | |
15564 | ||
15565 | ALL_BREAKPOINTS (bp) | |
15566 | if (is_syscall_catchpoint_enabled (bp)) | |
15567 | { | |
be5c67c1 PA |
15568 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bp; |
15569 | ||
15570 | if (c->syscalls_to_be_caught) | |
a96d9b2e SDJ |
15571 | { |
15572 | int i, iter; | |
15573 | for (i = 0; | |
be5c67c1 | 15574 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
15575 | i++) |
15576 | if (syscall_number == iter) | |
15577 | return 1; | |
15578 | } | |
15579 | else | |
15580 | return 1; | |
15581 | } | |
15582 | ||
15583 | return 0; | |
15584 | } | |
15585 | ||
15586 | /* Complete syscall names. Used by "catch syscall". */ | |
49c4e619 | 15587 | static VEC (char_ptr) * |
a96d9b2e | 15588 | catch_syscall_completer (struct cmd_list_element *cmd, |
6f937416 | 15589 | const char *text, const char *word) |
a96d9b2e SDJ |
15590 | { |
15591 | const char **list = get_syscall_names (); | |
49c4e619 | 15592 | VEC (char_ptr) *retlist |
b45627a0 | 15593 | = (list == NULL) ? NULL : complete_on_enum (list, word, word); |
cc59ec59 | 15594 | |
c38eea1a MS |
15595 | xfree (list); |
15596 | return retlist; | |
a96d9b2e SDJ |
15597 | } |
15598 | ||
1042e4c0 SS |
15599 | /* Tracepoint-specific operations. */ |
15600 | ||
15601 | /* Set tracepoint count to NUM. */ | |
15602 | static void | |
15603 | set_tracepoint_count (int num) | |
15604 | { | |
15605 | tracepoint_count = num; | |
4fa62494 | 15606 | set_internalvar_integer (lookup_internalvar ("tpnum"), num); |
1042e4c0 SS |
15607 | } |
15608 | ||
70221824 | 15609 | static void |
1042e4c0 SS |
15610 | trace_command (char *arg, int from_tty) |
15611 | { | |
55aa24fb SDJ |
15612 | struct breakpoint_ops *ops; |
15613 | const char *arg_cp = arg; | |
15614 | ||
15615 | if (arg && probe_linespec_to_ops (&arg_cp)) | |
15616 | ops = &tracepoint_probe_breakpoint_ops; | |
15617 | else | |
15618 | ops = &tracepoint_breakpoint_ops; | |
15619 | ||
558a9d82 YQ |
15620 | create_breakpoint (get_current_arch (), |
15621 | arg, | |
15622 | NULL, 0, NULL, 1 /* parse arg */, | |
15623 | 0 /* tempflag */, | |
15624 | bp_tracepoint /* type_wanted */, | |
15625 | 0 /* Ignore count */, | |
15626 | pending_break_support, | |
15627 | ops, | |
15628 | from_tty, | |
15629 | 1 /* enabled */, | |
15630 | 0 /* internal */, 0); | |
1042e4c0 SS |
15631 | } |
15632 | ||
70221824 | 15633 | static void |
7a697b8d SS |
15634 | ftrace_command (char *arg, int from_tty) |
15635 | { | |
558a9d82 YQ |
15636 | create_breakpoint (get_current_arch (), |
15637 | arg, | |
15638 | NULL, 0, NULL, 1 /* parse arg */, | |
15639 | 0 /* tempflag */, | |
15640 | bp_fast_tracepoint /* type_wanted */, | |
15641 | 0 /* Ignore count */, | |
15642 | pending_break_support, | |
15643 | &tracepoint_breakpoint_ops, | |
15644 | from_tty, | |
15645 | 1 /* enabled */, | |
15646 | 0 /* internal */, 0); | |
0fb4aa4b PA |
15647 | } |
15648 | ||
15649 | /* strace command implementation. Creates a static tracepoint. */ | |
15650 | ||
70221824 | 15651 | static void |
0fb4aa4b PA |
15652 | strace_command (char *arg, int from_tty) |
15653 | { | |
983af33b SDJ |
15654 | struct breakpoint_ops *ops; |
15655 | ||
15656 | /* Decide if we are dealing with a static tracepoint marker (`-m'), | |
15657 | or with a normal static tracepoint. */ | |
15658 | if (arg && strncmp (arg, "-m", 2) == 0 && isspace (arg[2])) | |
15659 | ops = &strace_marker_breakpoint_ops; | |
15660 | else | |
15661 | ops = &tracepoint_breakpoint_ops; | |
15662 | ||
558a9d82 YQ |
15663 | create_breakpoint (get_current_arch (), |
15664 | arg, | |
15665 | NULL, 0, NULL, 1 /* parse arg */, | |
15666 | 0 /* tempflag */, | |
15667 | bp_static_tracepoint /* type_wanted */, | |
15668 | 0 /* Ignore count */, | |
15669 | pending_break_support, | |
15670 | ops, | |
15671 | from_tty, | |
15672 | 1 /* enabled */, | |
15673 | 0 /* internal */, 0); | |
7a697b8d SS |
15674 | } |
15675 | ||
409873ef SS |
15676 | /* Set up a fake reader function that gets command lines from a linked |
15677 | list that was acquired during tracepoint uploading. */ | |
15678 | ||
15679 | static struct uploaded_tp *this_utp; | |
3149d8c1 | 15680 | static int next_cmd; |
409873ef SS |
15681 | |
15682 | static char * | |
15683 | read_uploaded_action (void) | |
15684 | { | |
15685 | char *rslt; | |
15686 | ||
3149d8c1 | 15687 | VEC_iterate (char_ptr, this_utp->cmd_strings, next_cmd, rslt); |
409873ef | 15688 | |
3149d8c1 | 15689 | next_cmd++; |
409873ef SS |
15690 | |
15691 | return rslt; | |
15692 | } | |
15693 | ||
00bf0b85 SS |
15694 | /* Given information about a tracepoint as recorded on a target (which |
15695 | can be either a live system or a trace file), attempt to create an | |
15696 | equivalent GDB tracepoint. This is not a reliable process, since | |
15697 | the target does not necessarily have all the information used when | |
15698 | the tracepoint was originally defined. */ | |
15699 | ||
d9b3f62e | 15700 | struct tracepoint * |
00bf0b85 | 15701 | create_tracepoint_from_upload (struct uploaded_tp *utp) |
d5551862 | 15702 | { |
409873ef | 15703 | char *addr_str, small_buf[100]; |
d9b3f62e | 15704 | struct tracepoint *tp; |
fd9b8c24 | 15705 | |
409873ef SS |
15706 | if (utp->at_string) |
15707 | addr_str = utp->at_string; | |
15708 | else | |
15709 | { | |
15710 | /* In the absence of a source location, fall back to raw | |
15711 | address. Since there is no way to confirm that the address | |
15712 | means the same thing as when the trace was started, warn the | |
15713 | user. */ | |
3e43a32a MS |
15714 | warning (_("Uploaded tracepoint %d has no " |
15715 | "source location, using raw address"), | |
409873ef | 15716 | utp->number); |
8c042590 | 15717 | xsnprintf (small_buf, sizeof (small_buf), "*%s", hex_string (utp->addr)); |
409873ef SS |
15718 | addr_str = small_buf; |
15719 | } | |
15720 | ||
15721 | /* There's not much we can do with a sequence of bytecodes. */ | |
15722 | if (utp->cond && !utp->cond_string) | |
3e43a32a MS |
15723 | warning (_("Uploaded tracepoint %d condition " |
15724 | "has no source form, ignoring it"), | |
409873ef | 15725 | utp->number); |
d5551862 | 15726 | |
8cdf0e15 | 15727 | if (!create_breakpoint (get_current_arch (), |
409873ef | 15728 | addr_str, |
e7e0cddf SS |
15729 | utp->cond_string, -1, NULL, |
15730 | 0 /* parse cond/thread */, | |
8cdf0e15 | 15731 | 0 /* tempflag */, |
0fb4aa4b | 15732 | utp->type /* type_wanted */, |
8cdf0e15 VP |
15733 | 0 /* Ignore count */, |
15734 | pending_break_support, | |
348d480f | 15735 | &tracepoint_breakpoint_ops, |
8cdf0e15 | 15736 | 0 /* from_tty */, |
84f4c1fe | 15737 | utp->enabled /* enabled */, |
44f238bb PA |
15738 | 0 /* internal */, |
15739 | CREATE_BREAKPOINT_FLAGS_INSERTED)) | |
fd9b8c24 PA |
15740 | return NULL; |
15741 | ||
409873ef | 15742 | /* Get the tracepoint we just created. */ |
fd9b8c24 PA |
15743 | tp = get_tracepoint (tracepoint_count); |
15744 | gdb_assert (tp != NULL); | |
d5551862 | 15745 | |
00bf0b85 SS |
15746 | if (utp->pass > 0) |
15747 | { | |
8c042590 PM |
15748 | xsnprintf (small_buf, sizeof (small_buf), "%d %d", utp->pass, |
15749 | tp->base.number); | |
00bf0b85 | 15750 | |
409873ef | 15751 | trace_pass_command (small_buf, 0); |
00bf0b85 SS |
15752 | } |
15753 | ||
409873ef SS |
15754 | /* If we have uploaded versions of the original commands, set up a |
15755 | special-purpose "reader" function and call the usual command line | |
15756 | reader, then pass the result to the breakpoint command-setting | |
15757 | function. */ | |
3149d8c1 | 15758 | if (!VEC_empty (char_ptr, utp->cmd_strings)) |
00bf0b85 | 15759 | { |
409873ef | 15760 | struct command_line *cmd_list; |
00bf0b85 | 15761 | |
409873ef | 15762 | this_utp = utp; |
3149d8c1 | 15763 | next_cmd = 0; |
d5551862 | 15764 | |
409873ef SS |
15765 | cmd_list = read_command_lines_1 (read_uploaded_action, 1, NULL, NULL); |
15766 | ||
d9b3f62e | 15767 | breakpoint_set_commands (&tp->base, cmd_list); |
00bf0b85 | 15768 | } |
3149d8c1 SS |
15769 | else if (!VEC_empty (char_ptr, utp->actions) |
15770 | || !VEC_empty (char_ptr, utp->step_actions)) | |
3e43a32a MS |
15771 | warning (_("Uploaded tracepoint %d actions " |
15772 | "have no source form, ignoring them"), | |
409873ef | 15773 | utp->number); |
00bf0b85 | 15774 | |
f196051f SS |
15775 | /* Copy any status information that might be available. */ |
15776 | tp->base.hit_count = utp->hit_count; | |
15777 | tp->traceframe_usage = utp->traceframe_usage; | |
15778 | ||
00bf0b85 | 15779 | return tp; |
d9b3f62e | 15780 | } |
00bf0b85 | 15781 | |
1042e4c0 SS |
15782 | /* Print information on tracepoint number TPNUM_EXP, or all if |
15783 | omitted. */ | |
15784 | ||
15785 | static void | |
e5a67952 | 15786 | tracepoints_info (char *args, int from_tty) |
1042e4c0 | 15787 | { |
79a45e25 | 15788 | struct ui_out *uiout = current_uiout; |
e5a67952 | 15789 | int num_printed; |
1042e4c0 | 15790 | |
e5a67952 | 15791 | num_printed = breakpoint_1 (args, 0, is_tracepoint); |
d77f58be SS |
15792 | |
15793 | if (num_printed == 0) | |
1042e4c0 | 15794 | { |
e5a67952 | 15795 | if (args == NULL || *args == '\0') |
d77f58be SS |
15796 | ui_out_message (uiout, 0, "No tracepoints.\n"); |
15797 | else | |
e5a67952 | 15798 | ui_out_message (uiout, 0, "No tracepoint matching '%s'.\n", args); |
1042e4c0 | 15799 | } |
ad443146 SS |
15800 | |
15801 | default_collect_info (); | |
1042e4c0 SS |
15802 | } |
15803 | ||
4a64f543 | 15804 | /* The 'enable trace' command enables tracepoints. |
1042e4c0 SS |
15805 | Not supported by all targets. */ |
15806 | static void | |
15807 | enable_trace_command (char *args, int from_tty) | |
15808 | { | |
15809 | enable_command (args, from_tty); | |
15810 | } | |
15811 | ||
4a64f543 | 15812 | /* The 'disable trace' command disables tracepoints. |
1042e4c0 SS |
15813 | Not supported by all targets. */ |
15814 | static void | |
15815 | disable_trace_command (char *args, int from_tty) | |
15816 | { | |
15817 | disable_command (args, from_tty); | |
15818 | } | |
15819 | ||
4a64f543 | 15820 | /* Remove a tracepoint (or all if no argument). */ |
1042e4c0 SS |
15821 | static void |
15822 | delete_trace_command (char *arg, int from_tty) | |
15823 | { | |
35df4500 | 15824 | struct breakpoint *b, *b_tmp; |
1042e4c0 SS |
15825 | |
15826 | dont_repeat (); | |
15827 | ||
15828 | if (arg == 0) | |
15829 | { | |
15830 | int breaks_to_delete = 0; | |
15831 | ||
15832 | /* Delete all breakpoints if no argument. | |
15833 | Do not delete internal or call-dummy breakpoints, these | |
4a64f543 MS |
15834 | have to be deleted with an explicit breakpoint number |
15835 | argument. */ | |
1042e4c0 | 15836 | ALL_TRACEPOINTS (b) |
46c6471b | 15837 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 SS |
15838 | { |
15839 | breaks_to_delete = 1; | |
15840 | break; | |
15841 | } | |
1042e4c0 SS |
15842 | |
15843 | /* Ask user only if there are some breakpoints to delete. */ | |
15844 | if (!from_tty | |
15845 | || (breaks_to_delete && query (_("Delete all tracepoints? ")))) | |
15846 | { | |
35df4500 | 15847 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 15848 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 | 15849 | delete_breakpoint (b); |
1042e4c0 SS |
15850 | } |
15851 | } | |
15852 | else | |
51be5b68 | 15853 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
1042e4c0 SS |
15854 | } |
15855 | ||
197f0a60 TT |
15856 | /* Helper function for trace_pass_command. */ |
15857 | ||
15858 | static void | |
d9b3f62e | 15859 | trace_pass_set_count (struct tracepoint *tp, int count, int from_tty) |
197f0a60 | 15860 | { |
d9b3f62e | 15861 | tp->pass_count = count; |
6f6484cd | 15862 | observer_notify_breakpoint_modified (&tp->base); |
197f0a60 TT |
15863 | if (from_tty) |
15864 | printf_filtered (_("Setting tracepoint %d's passcount to %d\n"), | |
d9b3f62e | 15865 | tp->base.number, count); |
197f0a60 TT |
15866 | } |
15867 | ||
1042e4c0 SS |
15868 | /* Set passcount for tracepoint. |
15869 | ||
15870 | First command argument is passcount, second is tracepoint number. | |
15871 | If tracepoint number omitted, apply to most recently defined. | |
15872 | Also accepts special argument "all". */ | |
15873 | ||
15874 | static void | |
15875 | trace_pass_command (char *args, int from_tty) | |
15876 | { | |
d9b3f62e | 15877 | struct tracepoint *t1; |
1042e4c0 | 15878 | unsigned int count; |
1042e4c0 SS |
15879 | |
15880 | if (args == 0 || *args == 0) | |
3e43a32a MS |
15881 | error (_("passcount command requires an " |
15882 | "argument (count + optional TP num)")); | |
1042e4c0 | 15883 | |
4a64f543 | 15884 | count = strtoul (args, &args, 10); /* Count comes first, then TP num. */ |
1042e4c0 | 15885 | |
529480d0 | 15886 | args = skip_spaces (args); |
1042e4c0 SS |
15887 | if (*args && strncasecmp (args, "all", 3) == 0) |
15888 | { | |
d9b3f62e PA |
15889 | struct breakpoint *b; |
15890 | ||
1042e4c0 | 15891 | args += 3; /* Skip special argument "all". */ |
1042e4c0 SS |
15892 | if (*args) |
15893 | error (_("Junk at end of arguments.")); | |
1042e4c0 | 15894 | |
d9b3f62e | 15895 | ALL_TRACEPOINTS (b) |
197f0a60 | 15896 | { |
d9b3f62e | 15897 | t1 = (struct tracepoint *) b; |
197f0a60 TT |
15898 | trace_pass_set_count (t1, count, from_tty); |
15899 | } | |
15900 | } | |
15901 | else if (*args == '\0') | |
1042e4c0 | 15902 | { |
5fa1d40e | 15903 | t1 = get_tracepoint_by_number (&args, NULL); |
1042e4c0 | 15904 | if (t1) |
197f0a60 TT |
15905 | trace_pass_set_count (t1, count, from_tty); |
15906 | } | |
15907 | else | |
15908 | { | |
15909 | struct get_number_or_range_state state; | |
15910 | ||
15911 | init_number_or_range (&state, args); | |
15912 | while (!state.finished) | |
1042e4c0 | 15913 | { |
5fa1d40e | 15914 | t1 = get_tracepoint_by_number (&args, &state); |
197f0a60 TT |
15915 | if (t1) |
15916 | trace_pass_set_count (t1, count, from_tty); | |
1042e4c0 SS |
15917 | } |
15918 | } | |
1042e4c0 SS |
15919 | } |
15920 | ||
d9b3f62e | 15921 | struct tracepoint * |
1042e4c0 SS |
15922 | get_tracepoint (int num) |
15923 | { | |
15924 | struct breakpoint *t; | |
15925 | ||
15926 | ALL_TRACEPOINTS (t) | |
15927 | if (t->number == num) | |
d9b3f62e | 15928 | return (struct tracepoint *) t; |
1042e4c0 SS |
15929 | |
15930 | return NULL; | |
15931 | } | |
15932 | ||
d5551862 SS |
15933 | /* Find the tracepoint with the given target-side number (which may be |
15934 | different from the tracepoint number after disconnecting and | |
15935 | reconnecting). */ | |
15936 | ||
d9b3f62e | 15937 | struct tracepoint * |
d5551862 SS |
15938 | get_tracepoint_by_number_on_target (int num) |
15939 | { | |
d9b3f62e | 15940 | struct breakpoint *b; |
d5551862 | 15941 | |
d9b3f62e PA |
15942 | ALL_TRACEPOINTS (b) |
15943 | { | |
15944 | struct tracepoint *t = (struct tracepoint *) b; | |
15945 | ||
15946 | if (t->number_on_target == num) | |
15947 | return t; | |
15948 | } | |
d5551862 SS |
15949 | |
15950 | return NULL; | |
15951 | } | |
15952 | ||
1042e4c0 | 15953 | /* Utility: parse a tracepoint number and look it up in the list. |
197f0a60 | 15954 | If STATE is not NULL, use, get_number_or_range_state and ignore ARG. |
5fa1d40e YQ |
15955 | If the argument is missing, the most recent tracepoint |
15956 | (tracepoint_count) is returned. */ | |
15957 | ||
d9b3f62e | 15958 | struct tracepoint * |
197f0a60 | 15959 | get_tracepoint_by_number (char **arg, |
5fa1d40e | 15960 | struct get_number_or_range_state *state) |
1042e4c0 | 15961 | { |
1042e4c0 SS |
15962 | struct breakpoint *t; |
15963 | int tpnum; | |
15964 | char *instring = arg == NULL ? NULL : *arg; | |
15965 | ||
197f0a60 TT |
15966 | if (state) |
15967 | { | |
15968 | gdb_assert (!state->finished); | |
15969 | tpnum = get_number_or_range (state); | |
15970 | } | |
15971 | else if (arg == NULL || *arg == NULL || ! **arg) | |
5fa1d40e | 15972 | tpnum = tracepoint_count; |
1042e4c0 | 15973 | else |
197f0a60 | 15974 | tpnum = get_number (arg); |
1042e4c0 SS |
15975 | |
15976 | if (tpnum <= 0) | |
15977 | { | |
15978 | if (instring && *instring) | |
15979 | printf_filtered (_("bad tracepoint number at or near '%s'\n"), | |
15980 | instring); | |
15981 | else | |
5fa1d40e | 15982 | printf_filtered (_("No previous tracepoint\n")); |
1042e4c0 SS |
15983 | return NULL; |
15984 | } | |
15985 | ||
15986 | ALL_TRACEPOINTS (t) | |
15987 | if (t->number == tpnum) | |
15988 | { | |
d9b3f62e | 15989 | return (struct tracepoint *) t; |
1042e4c0 SS |
15990 | } |
15991 | ||
1042e4c0 SS |
15992 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
15993 | return NULL; | |
15994 | } | |
15995 | ||
d9b3f62e PA |
15996 | void |
15997 | print_recreate_thread (struct breakpoint *b, struct ui_file *fp) | |
15998 | { | |
15999 | if (b->thread != -1) | |
16000 | fprintf_unfiltered (fp, " thread %d", b->thread); | |
16001 | ||
16002 | if (b->task != 0) | |
16003 | fprintf_unfiltered (fp, " task %d", b->task); | |
16004 | ||
16005 | fprintf_unfiltered (fp, "\n"); | |
16006 | } | |
16007 | ||
6149aea9 PA |
16008 | /* Save information on user settable breakpoints (watchpoints, etc) to |
16009 | a new script file named FILENAME. If FILTER is non-NULL, call it | |
16010 | on each breakpoint and only include the ones for which it returns | |
16011 | non-zero. */ | |
16012 | ||
1042e4c0 | 16013 | static void |
6149aea9 PA |
16014 | save_breakpoints (char *filename, int from_tty, |
16015 | int (*filter) (const struct breakpoint *)) | |
1042e4c0 SS |
16016 | { |
16017 | struct breakpoint *tp; | |
6149aea9 | 16018 | int any = 0; |
1042e4c0 | 16019 | struct cleanup *cleanup; |
a7bdde9e | 16020 | struct ui_file *fp; |
6149aea9 | 16021 | int extra_trace_bits = 0; |
1042e4c0 | 16022 | |
6149aea9 PA |
16023 | if (filename == 0 || *filename == 0) |
16024 | error (_("Argument required (file name in which to save)")); | |
1042e4c0 SS |
16025 | |
16026 | /* See if we have anything to save. */ | |
6149aea9 | 16027 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 16028 | { |
6149aea9 | 16029 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 16030 | if (!user_breakpoint_p (tp)) |
6149aea9 PA |
16031 | continue; |
16032 | ||
16033 | /* If we have a filter, only save the breakpoints it accepts. */ | |
16034 | if (filter && !filter (tp)) | |
16035 | continue; | |
16036 | ||
16037 | any = 1; | |
16038 | ||
16039 | if (is_tracepoint (tp)) | |
16040 | { | |
16041 | extra_trace_bits = 1; | |
16042 | ||
16043 | /* We can stop searching. */ | |
16044 | break; | |
16045 | } | |
1042e4c0 | 16046 | } |
6149aea9 PA |
16047 | |
16048 | if (!any) | |
1042e4c0 | 16049 | { |
6149aea9 | 16050 | warning (_("Nothing to save.")); |
1042e4c0 SS |
16051 | return; |
16052 | } | |
16053 | ||
c718be47 PA |
16054 | filename = tilde_expand (filename); |
16055 | cleanup = make_cleanup (xfree, filename); | |
16056 | fp = gdb_fopen (filename, "w"); | |
059fb39f | 16057 | if (!fp) |
6149aea9 PA |
16058 | error (_("Unable to open file '%s' for saving (%s)"), |
16059 | filename, safe_strerror (errno)); | |
a7bdde9e | 16060 | make_cleanup_ui_file_delete (fp); |
8bf6485c | 16061 | |
6149aea9 PA |
16062 | if (extra_trace_bits) |
16063 | save_trace_state_variables (fp); | |
8bf6485c | 16064 | |
6149aea9 | 16065 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 16066 | { |
6149aea9 | 16067 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 16068 | if (!user_breakpoint_p (tp)) |
6149aea9 | 16069 | continue; |
8bf6485c | 16070 | |
6149aea9 PA |
16071 | /* If we have a filter, only save the breakpoints it accepts. */ |
16072 | if (filter && !filter (tp)) | |
16073 | continue; | |
16074 | ||
348d480f | 16075 | tp->ops->print_recreate (tp, fp); |
1042e4c0 | 16076 | |
6149aea9 PA |
16077 | /* Note, we can't rely on tp->number for anything, as we can't |
16078 | assume the recreated breakpoint numbers will match. Use $bpnum | |
16079 | instead. */ | |
16080 | ||
16081 | if (tp->cond_string) | |
16082 | fprintf_unfiltered (fp, " condition $bpnum %s\n", tp->cond_string); | |
16083 | ||
16084 | if (tp->ignore_count) | |
16085 | fprintf_unfiltered (fp, " ignore $bpnum %d\n", tp->ignore_count); | |
16086 | ||
2d9442cc | 16087 | if (tp->type != bp_dprintf && tp->commands) |
1042e4c0 | 16088 | { |
a7bdde9e VP |
16089 | volatile struct gdb_exception ex; |
16090 | ||
6149aea9 | 16091 | fprintf_unfiltered (fp, " commands\n"); |
a7bdde9e | 16092 | |
79a45e25 | 16093 | ui_out_redirect (current_uiout, fp); |
14dba4b4 | 16094 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1042e4c0 | 16095 | { |
79a45e25 | 16096 | print_command_lines (current_uiout, tp->commands->commands, 2); |
a7bdde9e | 16097 | } |
79a45e25 | 16098 | ui_out_redirect (current_uiout, NULL); |
1042e4c0 | 16099 | |
a7bdde9e VP |
16100 | if (ex.reason < 0) |
16101 | throw_exception (ex); | |
1042e4c0 | 16102 | |
a7bdde9e | 16103 | fprintf_unfiltered (fp, " end\n"); |
1042e4c0 | 16104 | } |
6149aea9 PA |
16105 | |
16106 | if (tp->enable_state == bp_disabled) | |
16107 | fprintf_unfiltered (fp, "disable\n"); | |
16108 | ||
16109 | /* If this is a multi-location breakpoint, check if the locations | |
16110 | should be individually disabled. Watchpoint locations are | |
16111 | special, and not user visible. */ | |
16112 | if (!is_watchpoint (tp) && tp->loc && tp->loc->next) | |
16113 | { | |
16114 | struct bp_location *loc; | |
16115 | int n = 1; | |
16116 | ||
16117 | for (loc = tp->loc; loc != NULL; loc = loc->next, n++) | |
16118 | if (!loc->enabled) | |
16119 | fprintf_unfiltered (fp, "disable $bpnum.%d\n", n); | |
16120 | } | |
1042e4c0 | 16121 | } |
8bf6485c | 16122 | |
6149aea9 | 16123 | if (extra_trace_bits && *default_collect) |
8bf6485c SS |
16124 | fprintf_unfiltered (fp, "set default-collect %s\n", default_collect); |
16125 | ||
1042e4c0 | 16126 | if (from_tty) |
6149aea9 | 16127 | printf_filtered (_("Saved to file '%s'.\n"), filename); |
c718be47 | 16128 | do_cleanups (cleanup); |
6149aea9 PA |
16129 | } |
16130 | ||
16131 | /* The `save breakpoints' command. */ | |
16132 | ||
16133 | static void | |
16134 | save_breakpoints_command (char *args, int from_tty) | |
16135 | { | |
16136 | save_breakpoints (args, from_tty, NULL); | |
16137 | } | |
16138 | ||
16139 | /* The `save tracepoints' command. */ | |
16140 | ||
16141 | static void | |
16142 | save_tracepoints_command (char *args, int from_tty) | |
16143 | { | |
16144 | save_breakpoints (args, from_tty, is_tracepoint); | |
1042e4c0 SS |
16145 | } |
16146 | ||
16147 | /* Create a vector of all tracepoints. */ | |
16148 | ||
16149 | VEC(breakpoint_p) * | |
eeae04df | 16150 | all_tracepoints (void) |
1042e4c0 SS |
16151 | { |
16152 | VEC(breakpoint_p) *tp_vec = 0; | |
16153 | struct breakpoint *tp; | |
16154 | ||
16155 | ALL_TRACEPOINTS (tp) | |
16156 | { | |
16157 | VEC_safe_push (breakpoint_p, tp_vec, tp); | |
16158 | } | |
16159 | ||
16160 | return tp_vec; | |
16161 | } | |
16162 | ||
c906108c | 16163 | \f |
4a64f543 MS |
16164 | /* This help string is used for the break, hbreak, tbreak and thbreak |
16165 | commands. It is defined as a macro to prevent duplication. | |
16166 | COMMAND should be a string constant containing the name of the | |
16167 | command. */ | |
31e2b00f | 16168 | #define BREAK_ARGS_HELP(command) \ |
fb7b5af4 SDJ |
16169 | command" [PROBE_MODIFIER] [LOCATION] [thread THREADNUM] [if CONDITION]\n\ |
16170 | PROBE_MODIFIER shall be present if the command is to be placed in a\n\ | |
16171 | probe point. Accepted values are `-probe' (for a generic, automatically\n\ | |
16172 | guessed probe type) or `-probe-stap' (for a SystemTap probe).\n\ | |
31e2b00f AS |
16173 | LOCATION may be a line number, function name, or \"*\" and an address.\n\ |
16174 | If a line number is specified, break at start of code for that line.\n\ | |
16175 | If a function is specified, break at start of code for that function.\n\ | |
16176 | If an address is specified, break at that exact address.\n\ | |
dc10affe PA |
16177 | With no LOCATION, uses current execution address of the selected\n\ |
16178 | stack frame. This is useful for breaking on return to a stack frame.\n\ | |
31e2b00f AS |
16179 | \n\ |
16180 | THREADNUM is the number from \"info threads\".\n\ | |
16181 | CONDITION is a boolean expression.\n\ | |
16182 | \n\ | |
d41c0fc8 PA |
16183 | Multiple breakpoints at one place are permitted, and useful if their\n\ |
16184 | conditions are different.\n\ | |
31e2b00f AS |
16185 | \n\ |
16186 | Do \"help breakpoints\" for info on other commands dealing with breakpoints." | |
16187 | ||
44feb3ce TT |
16188 | /* List of subcommands for "catch". */ |
16189 | static struct cmd_list_element *catch_cmdlist; | |
16190 | ||
16191 | /* List of subcommands for "tcatch". */ | |
16192 | static struct cmd_list_element *tcatch_cmdlist; | |
16193 | ||
9ac4176b | 16194 | void |
44feb3ce | 16195 | add_catch_command (char *name, char *docstring, |
82ae6c8d | 16196 | cmd_sfunc_ftype *sfunc, |
625e8578 | 16197 | completer_ftype *completer, |
44feb3ce TT |
16198 | void *user_data_catch, |
16199 | void *user_data_tcatch) | |
16200 | { | |
16201 | struct cmd_list_element *command; | |
16202 | ||
16203 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
16204 | &catch_cmdlist); | |
16205 | set_cmd_sfunc (command, sfunc); | |
16206 | set_cmd_context (command, user_data_catch); | |
a96d9b2e | 16207 | set_cmd_completer (command, completer); |
44feb3ce TT |
16208 | |
16209 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
16210 | &tcatch_cmdlist); | |
16211 | set_cmd_sfunc (command, sfunc); | |
16212 | set_cmd_context (command, user_data_tcatch); | |
a96d9b2e | 16213 | set_cmd_completer (command, completer); |
44feb3ce TT |
16214 | } |
16215 | ||
6c95b8df | 16216 | static void |
a79b8f6e | 16217 | clear_syscall_counts (struct inferior *inf) |
6c95b8df | 16218 | { |
fa3064dd YQ |
16219 | struct catch_syscall_inferior_data *inf_data |
16220 | = get_catch_syscall_inferior_data (inf); | |
16221 | ||
16222 | inf_data->total_syscalls_count = 0; | |
16223 | inf_data->any_syscall_count = 0; | |
16224 | VEC_free (int, inf_data->syscalls_counts); | |
6c95b8df PA |
16225 | } |
16226 | ||
6149aea9 PA |
16227 | static void |
16228 | save_command (char *arg, int from_tty) | |
16229 | { | |
3e43a32a MS |
16230 | printf_unfiltered (_("\"save\" must be followed by " |
16231 | "the name of a save subcommand.\n")); | |
635c7e8a | 16232 | help_list (save_cmdlist, "save ", all_commands, gdb_stdout); |
6149aea9 PA |
16233 | } |
16234 | ||
84f4c1fe PM |
16235 | struct breakpoint * |
16236 | iterate_over_breakpoints (int (*callback) (struct breakpoint *, void *), | |
16237 | void *data) | |
16238 | { | |
35df4500 | 16239 | struct breakpoint *b, *b_tmp; |
84f4c1fe | 16240 | |
35df4500 | 16241 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
84f4c1fe PM |
16242 | { |
16243 | if ((*callback) (b, data)) | |
16244 | return b; | |
16245 | } | |
16246 | ||
16247 | return NULL; | |
16248 | } | |
16249 | ||
0574c78f GB |
16250 | /* Zero if any of the breakpoint's locations could be a location where |
16251 | functions have been inlined, nonzero otherwise. */ | |
16252 | ||
16253 | static int | |
16254 | is_non_inline_function (struct breakpoint *b) | |
16255 | { | |
16256 | /* The shared library event breakpoint is set on the address of a | |
16257 | non-inline function. */ | |
16258 | if (b->type == bp_shlib_event) | |
16259 | return 1; | |
16260 | ||
16261 | return 0; | |
16262 | } | |
16263 | ||
16264 | /* Nonzero if the specified PC cannot be a location where functions | |
16265 | have been inlined. */ | |
16266 | ||
16267 | int | |
09ac7c10 TT |
16268 | pc_at_non_inline_function (struct address_space *aspace, CORE_ADDR pc, |
16269 | const struct target_waitstatus *ws) | |
0574c78f GB |
16270 | { |
16271 | struct breakpoint *b; | |
16272 | struct bp_location *bl; | |
16273 | ||
16274 | ALL_BREAKPOINTS (b) | |
16275 | { | |
16276 | if (!is_non_inline_function (b)) | |
16277 | continue; | |
16278 | ||
16279 | for (bl = b->loc; bl != NULL; bl = bl->next) | |
16280 | { | |
16281 | if (!bl->shlib_disabled | |
09ac7c10 | 16282 | && bpstat_check_location (bl, aspace, pc, ws)) |
0574c78f GB |
16283 | return 1; |
16284 | } | |
16285 | } | |
16286 | ||
16287 | return 0; | |
16288 | } | |
16289 | ||
2f202fde JK |
16290 | /* Remove any references to OBJFILE which is going to be freed. */ |
16291 | ||
16292 | void | |
16293 | breakpoint_free_objfile (struct objfile *objfile) | |
16294 | { | |
16295 | struct bp_location **locp, *loc; | |
16296 | ||
16297 | ALL_BP_LOCATIONS (loc, locp) | |
16298 | if (loc->symtab != NULL && loc->symtab->objfile == objfile) | |
16299 | loc->symtab = NULL; | |
16300 | } | |
16301 | ||
2060206e PA |
16302 | void |
16303 | initialize_breakpoint_ops (void) | |
16304 | { | |
16305 | static int initialized = 0; | |
16306 | ||
16307 | struct breakpoint_ops *ops; | |
16308 | ||
16309 | if (initialized) | |
16310 | return; | |
16311 | initialized = 1; | |
16312 | ||
16313 | /* The breakpoint_ops structure to be inherit by all kinds of | |
16314 | breakpoints (real breakpoints, i.e., user "break" breakpoints, | |
16315 | internal and momentary breakpoints, etc.). */ | |
16316 | ops = &bkpt_base_breakpoint_ops; | |
16317 | *ops = base_breakpoint_ops; | |
16318 | ops->re_set = bkpt_re_set; | |
16319 | ops->insert_location = bkpt_insert_location; | |
16320 | ops->remove_location = bkpt_remove_location; | |
16321 | ops->breakpoint_hit = bkpt_breakpoint_hit; | |
983af33b SDJ |
16322 | ops->create_sals_from_address = bkpt_create_sals_from_address; |
16323 | ops->create_breakpoints_sal = bkpt_create_breakpoints_sal; | |
16324 | ops->decode_linespec = bkpt_decode_linespec; | |
2060206e PA |
16325 | |
16326 | /* The breakpoint_ops structure to be used in regular breakpoints. */ | |
16327 | ops = &bkpt_breakpoint_ops; | |
16328 | *ops = bkpt_base_breakpoint_ops; | |
16329 | ops->re_set = bkpt_re_set; | |
16330 | ops->resources_needed = bkpt_resources_needed; | |
16331 | ops->print_it = bkpt_print_it; | |
16332 | ops->print_mention = bkpt_print_mention; | |
16333 | ops->print_recreate = bkpt_print_recreate; | |
16334 | ||
16335 | /* Ranged breakpoints. */ | |
16336 | ops = &ranged_breakpoint_ops; | |
16337 | *ops = bkpt_breakpoint_ops; | |
16338 | ops->breakpoint_hit = breakpoint_hit_ranged_breakpoint; | |
16339 | ops->resources_needed = resources_needed_ranged_breakpoint; | |
16340 | ops->print_it = print_it_ranged_breakpoint; | |
16341 | ops->print_one = print_one_ranged_breakpoint; | |
16342 | ops->print_one_detail = print_one_detail_ranged_breakpoint; | |
16343 | ops->print_mention = print_mention_ranged_breakpoint; | |
16344 | ops->print_recreate = print_recreate_ranged_breakpoint; | |
16345 | ||
16346 | /* Internal breakpoints. */ | |
16347 | ops = &internal_breakpoint_ops; | |
16348 | *ops = bkpt_base_breakpoint_ops; | |
16349 | ops->re_set = internal_bkpt_re_set; | |
16350 | ops->check_status = internal_bkpt_check_status; | |
16351 | ops->print_it = internal_bkpt_print_it; | |
16352 | ops->print_mention = internal_bkpt_print_mention; | |
16353 | ||
16354 | /* Momentary breakpoints. */ | |
16355 | ops = &momentary_breakpoint_ops; | |
16356 | *ops = bkpt_base_breakpoint_ops; | |
16357 | ops->re_set = momentary_bkpt_re_set; | |
16358 | ops->check_status = momentary_bkpt_check_status; | |
16359 | ops->print_it = momentary_bkpt_print_it; | |
16360 | ops->print_mention = momentary_bkpt_print_mention; | |
16361 | ||
e2e4d78b JK |
16362 | /* Momentary breakpoints for bp_longjmp and bp_exception. */ |
16363 | ops = &longjmp_breakpoint_ops; | |
16364 | *ops = momentary_breakpoint_ops; | |
16365 | ops->dtor = longjmp_bkpt_dtor; | |
16366 | ||
55aa24fb SDJ |
16367 | /* Probe breakpoints. */ |
16368 | ops = &bkpt_probe_breakpoint_ops; | |
16369 | *ops = bkpt_breakpoint_ops; | |
16370 | ops->insert_location = bkpt_probe_insert_location; | |
16371 | ops->remove_location = bkpt_probe_remove_location; | |
16372 | ops->create_sals_from_address = bkpt_probe_create_sals_from_address; | |
16373 | ops->decode_linespec = bkpt_probe_decode_linespec; | |
16374 | ||
2060206e PA |
16375 | /* Watchpoints. */ |
16376 | ops = &watchpoint_breakpoint_ops; | |
16377 | *ops = base_breakpoint_ops; | |
3a5c3e22 | 16378 | ops->dtor = dtor_watchpoint; |
2060206e PA |
16379 | ops->re_set = re_set_watchpoint; |
16380 | ops->insert_location = insert_watchpoint; | |
16381 | ops->remove_location = remove_watchpoint; | |
16382 | ops->breakpoint_hit = breakpoint_hit_watchpoint; | |
16383 | ops->check_status = check_status_watchpoint; | |
16384 | ops->resources_needed = resources_needed_watchpoint; | |
16385 | ops->works_in_software_mode = works_in_software_mode_watchpoint; | |
16386 | ops->print_it = print_it_watchpoint; | |
16387 | ops->print_mention = print_mention_watchpoint; | |
16388 | ops->print_recreate = print_recreate_watchpoint; | |
427cd150 | 16389 | ops->explains_signal = explains_signal_watchpoint; |
2060206e PA |
16390 | |
16391 | /* Masked watchpoints. */ | |
16392 | ops = &masked_watchpoint_breakpoint_ops; | |
16393 | *ops = watchpoint_breakpoint_ops; | |
16394 | ops->insert_location = insert_masked_watchpoint; | |
16395 | ops->remove_location = remove_masked_watchpoint; | |
16396 | ops->resources_needed = resources_needed_masked_watchpoint; | |
16397 | ops->works_in_software_mode = works_in_software_mode_masked_watchpoint; | |
16398 | ops->print_it = print_it_masked_watchpoint; | |
16399 | ops->print_one_detail = print_one_detail_masked_watchpoint; | |
16400 | ops->print_mention = print_mention_masked_watchpoint; | |
16401 | ops->print_recreate = print_recreate_masked_watchpoint; | |
16402 | ||
16403 | /* Tracepoints. */ | |
16404 | ops = &tracepoint_breakpoint_ops; | |
16405 | *ops = base_breakpoint_ops; | |
16406 | ops->re_set = tracepoint_re_set; | |
16407 | ops->breakpoint_hit = tracepoint_breakpoint_hit; | |
16408 | ops->print_one_detail = tracepoint_print_one_detail; | |
16409 | ops->print_mention = tracepoint_print_mention; | |
16410 | ops->print_recreate = tracepoint_print_recreate; | |
983af33b SDJ |
16411 | ops->create_sals_from_address = tracepoint_create_sals_from_address; |
16412 | ops->create_breakpoints_sal = tracepoint_create_breakpoints_sal; | |
16413 | ops->decode_linespec = tracepoint_decode_linespec; | |
16414 | ||
55aa24fb SDJ |
16415 | /* Probe tracepoints. */ |
16416 | ops = &tracepoint_probe_breakpoint_ops; | |
16417 | *ops = tracepoint_breakpoint_ops; | |
16418 | ops->create_sals_from_address = tracepoint_probe_create_sals_from_address; | |
16419 | ops->decode_linespec = tracepoint_probe_decode_linespec; | |
16420 | ||
983af33b SDJ |
16421 | /* Static tracepoints with marker (`-m'). */ |
16422 | ops = &strace_marker_breakpoint_ops; | |
16423 | *ops = tracepoint_breakpoint_ops; | |
16424 | ops->create_sals_from_address = strace_marker_create_sals_from_address; | |
16425 | ops->create_breakpoints_sal = strace_marker_create_breakpoints_sal; | |
16426 | ops->decode_linespec = strace_marker_decode_linespec; | |
2060206e PA |
16427 | |
16428 | /* Fork catchpoints. */ | |
16429 | ops = &catch_fork_breakpoint_ops; | |
16430 | *ops = base_breakpoint_ops; | |
16431 | ops->insert_location = insert_catch_fork; | |
16432 | ops->remove_location = remove_catch_fork; | |
16433 | ops->breakpoint_hit = breakpoint_hit_catch_fork; | |
16434 | ops->print_it = print_it_catch_fork; | |
16435 | ops->print_one = print_one_catch_fork; | |
16436 | ops->print_mention = print_mention_catch_fork; | |
16437 | ops->print_recreate = print_recreate_catch_fork; | |
16438 | ||
16439 | /* Vfork catchpoints. */ | |
16440 | ops = &catch_vfork_breakpoint_ops; | |
16441 | *ops = base_breakpoint_ops; | |
16442 | ops->insert_location = insert_catch_vfork; | |
16443 | ops->remove_location = remove_catch_vfork; | |
16444 | ops->breakpoint_hit = breakpoint_hit_catch_vfork; | |
16445 | ops->print_it = print_it_catch_vfork; | |
16446 | ops->print_one = print_one_catch_vfork; | |
16447 | ops->print_mention = print_mention_catch_vfork; | |
16448 | ops->print_recreate = print_recreate_catch_vfork; | |
16449 | ||
16450 | /* Exec catchpoints. */ | |
16451 | ops = &catch_exec_breakpoint_ops; | |
16452 | *ops = base_breakpoint_ops; | |
16453 | ops->dtor = dtor_catch_exec; | |
16454 | ops->insert_location = insert_catch_exec; | |
16455 | ops->remove_location = remove_catch_exec; | |
16456 | ops->breakpoint_hit = breakpoint_hit_catch_exec; | |
16457 | ops->print_it = print_it_catch_exec; | |
16458 | ops->print_one = print_one_catch_exec; | |
16459 | ops->print_mention = print_mention_catch_exec; | |
16460 | ops->print_recreate = print_recreate_catch_exec; | |
16461 | ||
16462 | /* Syscall catchpoints. */ | |
16463 | ops = &catch_syscall_breakpoint_ops; | |
16464 | *ops = base_breakpoint_ops; | |
16465 | ops->dtor = dtor_catch_syscall; | |
16466 | ops->insert_location = insert_catch_syscall; | |
16467 | ops->remove_location = remove_catch_syscall; | |
16468 | ops->breakpoint_hit = breakpoint_hit_catch_syscall; | |
16469 | ops->print_it = print_it_catch_syscall; | |
16470 | ops->print_one = print_one_catch_syscall; | |
16471 | ops->print_mention = print_mention_catch_syscall; | |
16472 | ops->print_recreate = print_recreate_catch_syscall; | |
edcc5120 TT |
16473 | |
16474 | /* Solib-related catchpoints. */ | |
16475 | ops = &catch_solib_breakpoint_ops; | |
16476 | *ops = base_breakpoint_ops; | |
16477 | ops->dtor = dtor_catch_solib; | |
16478 | ops->insert_location = insert_catch_solib; | |
16479 | ops->remove_location = remove_catch_solib; | |
16480 | ops->breakpoint_hit = breakpoint_hit_catch_solib; | |
16481 | ops->check_status = check_status_catch_solib; | |
16482 | ops->print_it = print_it_catch_solib; | |
16483 | ops->print_one = print_one_catch_solib; | |
16484 | ops->print_mention = print_mention_catch_solib; | |
16485 | ops->print_recreate = print_recreate_catch_solib; | |
e7e0cddf SS |
16486 | |
16487 | ops = &dprintf_breakpoint_ops; | |
16488 | *ops = bkpt_base_breakpoint_ops; | |
5c2b4418 | 16489 | ops->re_set = dprintf_re_set; |
e7e0cddf SS |
16490 | ops->resources_needed = bkpt_resources_needed; |
16491 | ops->print_it = bkpt_print_it; | |
16492 | ops->print_mention = bkpt_print_mention; | |
2d9442cc | 16493 | ops->print_recreate = dprintf_print_recreate; |
9d6e6e84 | 16494 | ops->after_condition_true = dprintf_after_condition_true; |
cd1608cc | 16495 | ops->breakpoint_hit = dprintf_breakpoint_hit; |
2060206e PA |
16496 | } |
16497 | ||
8bfd80db YQ |
16498 | /* Chain containing all defined "enable breakpoint" subcommands. */ |
16499 | ||
16500 | static struct cmd_list_element *enablebreaklist = NULL; | |
16501 | ||
c906108c | 16502 | void |
fba45db2 | 16503 | _initialize_breakpoint (void) |
c906108c SS |
16504 | { |
16505 | struct cmd_list_element *c; | |
16506 | ||
2060206e PA |
16507 | initialize_breakpoint_ops (); |
16508 | ||
84acb35a | 16509 | observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib); |
63644780 | 16510 | observer_attach_free_objfile (disable_breakpoints_in_freed_objfile); |
6c95b8df | 16511 | observer_attach_inferior_exit (clear_syscall_counts); |
1f3b5d1b | 16512 | observer_attach_memory_changed (invalidate_bp_value_on_memory_change); |
84acb35a | 16513 | |
55aa24fb SDJ |
16514 | breakpoint_objfile_key |
16515 | = register_objfile_data_with_cleanup (NULL, free_breakpoint_probes); | |
17450429 | 16516 | |
fa3064dd | 16517 | catch_syscall_inferior_data |
8e260fc0 TT |
16518 | = register_inferior_data_with_cleanup (NULL, |
16519 | catch_syscall_inferior_data_cleanup); | |
fa3064dd | 16520 | |
c906108c SS |
16521 | breakpoint_chain = 0; |
16522 | /* Don't bother to call set_breakpoint_count. $bpnum isn't useful | |
16523 | before a breakpoint is set. */ | |
16524 | breakpoint_count = 0; | |
16525 | ||
1042e4c0 SS |
16526 | tracepoint_count = 0; |
16527 | ||
1bedd215 AC |
16528 | add_com ("ignore", class_breakpoint, ignore_command, _("\ |
16529 | Set ignore-count of breakpoint number N to COUNT.\n\ | |
16530 | Usage is `ignore N COUNT'.")); | |
c906108c | 16531 | if (xdb_commands) |
c5aa993b | 16532 | add_com_alias ("bc", "ignore", class_breakpoint, 1); |
c906108c | 16533 | |
1bedd215 AC |
16534 | add_com ("commands", class_breakpoint, commands_command, _("\ |
16535 | Set commands to be executed when a breakpoint is hit.\n\ | |
c906108c SS |
16536 | Give breakpoint number as argument after \"commands\".\n\ |
16537 | With no argument, the targeted breakpoint is the last one set.\n\ | |
16538 | The commands themselves follow starting on the next line.\n\ | |
16539 | Type a line containing \"end\" to indicate the end of them.\n\ | |
16540 | Give \"silent\" as the first line to make the breakpoint silent;\n\ | |
1bedd215 | 16541 | then no output is printed when it is hit, except what the commands print.")); |
c906108c | 16542 | |
d55637df | 16543 | c = add_com ("condition", class_breakpoint, condition_command, _("\ |
1bedd215 | 16544 | Specify breakpoint number N to break only if COND is true.\n\ |
c906108c | 16545 | Usage is `condition N COND', where N is an integer and COND is an\n\ |
1bedd215 | 16546 | expression to be evaluated whenever breakpoint N is reached.")); |
d55637df | 16547 | set_cmd_completer (c, condition_completer); |
c906108c | 16548 | |
1bedd215 | 16549 | c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\ |
31e2b00f | 16550 | Set a temporary breakpoint.\n\ |
c906108c SS |
16551 | Like \"break\" except the breakpoint is only temporary,\n\ |
16552 | so it will be deleted when hit. Equivalent to \"break\" followed\n\ | |
31e2b00f AS |
16553 | by using \"enable delete\" on the breakpoint number.\n\ |
16554 | \n" | |
16555 | BREAK_ARGS_HELP ("tbreak"))); | |
5ba2abeb | 16556 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16557 | |
1bedd215 | 16558 | c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\ |
a3be7890 | 16559 | Set a hardware assisted breakpoint.\n\ |
c906108c | 16560 | Like \"break\" except the breakpoint requires hardware support,\n\ |
31e2b00f AS |
16561 | some target hardware may not have this support.\n\ |
16562 | \n" | |
16563 | BREAK_ARGS_HELP ("hbreak"))); | |
5ba2abeb | 16564 | set_cmd_completer (c, location_completer); |
c906108c | 16565 | |
1bedd215 | 16566 | c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\ |
31e2b00f | 16567 | Set a temporary hardware assisted breakpoint.\n\ |
c906108c | 16568 | Like \"hbreak\" except the breakpoint is only temporary,\n\ |
31e2b00f AS |
16569 | so it will be deleted when hit.\n\ |
16570 | \n" | |
16571 | BREAK_ARGS_HELP ("thbreak"))); | |
5ba2abeb | 16572 | set_cmd_completer (c, location_completer); |
c906108c | 16573 | |
1bedd215 AC |
16574 | add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\ |
16575 | Enable some breakpoints.\n\ | |
c906108c SS |
16576 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16577 | With no subcommand, breakpoints are enabled until you command otherwise.\n\ | |
16578 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16579 | With a subcommand you can enable temporarily."), |
c906108c SS |
16580 | &enablelist, "enable ", 1, &cmdlist); |
16581 | if (xdb_commands) | |
1bedd215 AC |
16582 | add_com ("ab", class_breakpoint, enable_command, _("\ |
16583 | Enable some breakpoints.\n\ | |
c906108c SS |
16584 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16585 | With no subcommand, breakpoints are enabled until you command otherwise.\n\ | |
16586 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16587 | With a subcommand you can enable temporarily.")); |
c906108c SS |
16588 | |
16589 | add_com_alias ("en", "enable", class_breakpoint, 1); | |
16590 | ||
84951ab5 | 16591 | add_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\ |
1bedd215 | 16592 | Enable some breakpoints.\n\ |
c906108c SS |
16593 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16594 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16595 | May be abbreviated to simply \"enable\".\n"), |
c5aa993b | 16596 | &enablebreaklist, "enable breakpoints ", 1, &enablelist); |
c906108c | 16597 | |
1a966eab AC |
16598 | add_cmd ("once", no_class, enable_once_command, _("\ |
16599 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16600 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
c906108c SS |
16601 | &enablebreaklist); |
16602 | ||
1a966eab AC |
16603 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16604 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16605 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16606 | &enablebreaklist); |
16607 | ||
816338b5 SS |
16608 | add_cmd ("count", no_class, enable_count_command, _("\ |
16609 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16610 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16611 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
16612 | &enablebreaklist); | |
16613 | ||
1a966eab AC |
16614 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16615 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16616 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16617 | &enablelist); |
16618 | ||
1a966eab AC |
16619 | add_cmd ("once", no_class, enable_once_command, _("\ |
16620 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16621 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
816338b5 SS |
16622 | &enablelist); |
16623 | ||
16624 | add_cmd ("count", no_class, enable_count_command, _("\ | |
16625 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16626 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16627 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
c906108c SS |
16628 | &enablelist); |
16629 | ||
1bedd215 AC |
16630 | add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\ |
16631 | Disable some breakpoints.\n\ | |
c906108c SS |
16632 | Arguments are breakpoint numbers with spaces in between.\n\ |
16633 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16634 | A disabled breakpoint is not forgotten, but has no effect until re-enabled."), |
c906108c SS |
16635 | &disablelist, "disable ", 1, &cmdlist); |
16636 | add_com_alias ("dis", "disable", class_breakpoint, 1); | |
16637 | add_com_alias ("disa", "disable", class_breakpoint, 1); | |
16638 | if (xdb_commands) | |
1bedd215 AC |
16639 | add_com ("sb", class_breakpoint, disable_command, _("\ |
16640 | Disable some breakpoints.\n\ | |
c906108c SS |
16641 | Arguments are breakpoint numbers with spaces in between.\n\ |
16642 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16643 | A disabled breakpoint is not forgotten, but has no effect until re-enabled.")); |
c906108c | 16644 | |
1a966eab AC |
16645 | add_cmd ("breakpoints", class_alias, disable_command, _("\ |
16646 | Disable some breakpoints.\n\ | |
c906108c SS |
16647 | Arguments are breakpoint numbers with spaces in between.\n\ |
16648 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16649 | A disabled breakpoint is not forgotten, but has no effect until re-enabled.\n\ |
1a966eab | 16650 | This command may be abbreviated \"disable\"."), |
c906108c SS |
16651 | &disablelist); |
16652 | ||
1bedd215 AC |
16653 | add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\ |
16654 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16655 | Arguments are breakpoint numbers with spaces in between.\n\ |
16656 | To delete all breakpoints, give no argument.\n\ | |
16657 | \n\ | |
16658 | Also a prefix command for deletion of other GDB objects.\n\ | |
1bedd215 | 16659 | The \"unset\" command is also an alias for \"delete\"."), |
c906108c SS |
16660 | &deletelist, "delete ", 1, &cmdlist); |
16661 | add_com_alias ("d", "delete", class_breakpoint, 1); | |
7f198e01 | 16662 | add_com_alias ("del", "delete", class_breakpoint, 1); |
c906108c | 16663 | if (xdb_commands) |
1bedd215 AC |
16664 | add_com ("db", class_breakpoint, delete_command, _("\ |
16665 | Delete some breakpoints.\n\ | |
c906108c | 16666 | Arguments are breakpoint numbers with spaces in between.\n\ |
1bedd215 | 16667 | To delete all breakpoints, give no argument.\n")); |
c906108c | 16668 | |
1a966eab AC |
16669 | add_cmd ("breakpoints", class_alias, delete_command, _("\ |
16670 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16671 | Arguments are breakpoint numbers with spaces in between.\n\ |
16672 | To delete all breakpoints, give no argument.\n\ | |
1a966eab | 16673 | This command may be abbreviated \"delete\"."), |
c906108c SS |
16674 | &deletelist); |
16675 | ||
1bedd215 AC |
16676 | add_com ("clear", class_breakpoint, clear_command, _("\ |
16677 | Clear breakpoint at specified line or function.\n\ | |
c906108c SS |
16678 | Argument may be line number, function name, or \"*\" and an address.\n\ |
16679 | If line number is specified, all breakpoints in that line are cleared.\n\ | |
16680 | If function is specified, breakpoints at beginning of function are cleared.\n\ | |
1bedd215 AC |
16681 | If an address is specified, breakpoints at that address are cleared.\n\ |
16682 | \n\ | |
16683 | With no argument, clears all breakpoints in the line that the selected frame\n\ | |
c906108c SS |
16684 | is executing in.\n\ |
16685 | \n\ | |
1bedd215 | 16686 | See also the \"delete\" command which clears breakpoints by number.")); |
a6cc4789 | 16687 | add_com_alias ("cl", "clear", class_breakpoint, 1); |
c906108c | 16688 | |
1bedd215 | 16689 | c = add_com ("break", class_breakpoint, break_command, _("\ |
31e2b00f AS |
16690 | Set breakpoint at specified line or function.\n" |
16691 | BREAK_ARGS_HELP ("break"))); | |
5ba2abeb | 16692 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16693 | |
c906108c SS |
16694 | add_com_alias ("b", "break", class_run, 1); |
16695 | add_com_alias ("br", "break", class_run, 1); | |
16696 | add_com_alias ("bre", "break", class_run, 1); | |
16697 | add_com_alias ("brea", "break", class_run, 1); | |
16698 | ||
7681d515 PM |
16699 | if (xdb_commands) |
16700 | add_com_alias ("ba", "break", class_breakpoint, 1); | |
c906108c SS |
16701 | |
16702 | if (dbx_commands) | |
16703 | { | |
1bedd215 AC |
16704 | add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\ |
16705 | Break in function/address or break at a line in the current file."), | |
c5aa993b JM |
16706 | &stoplist, "stop ", 1, &cmdlist); |
16707 | add_cmd ("in", class_breakpoint, stopin_command, | |
1a966eab | 16708 | _("Break in function or address."), &stoplist); |
c5aa993b | 16709 | add_cmd ("at", class_breakpoint, stopat_command, |
1a966eab | 16710 | _("Break at a line in the current file."), &stoplist); |
1bedd215 AC |
16711 | add_com ("status", class_info, breakpoints_info, _("\ |
16712 | Status of user-settable breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16713 | The \"Type\" column indicates one of:\n\ |
16714 | \tbreakpoint - normal breakpoint\n\ | |
16715 | \twatchpoint - watchpoint\n\ | |
16716 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16717 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16718 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16719 | address and file/line number respectively.\n\ |
16720 | \n\ | |
16721 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16722 | are set to the address of the last breakpoint listed unless the command\n\ |
16723 | is prefixed with \"server \".\n\n\ | |
c906108c | 16724 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16725 | breakpoint set.")); |
c906108c SS |
16726 | } |
16727 | ||
1bedd215 | 16728 | add_info ("breakpoints", breakpoints_info, _("\ |
e5a67952 | 16729 | Status of specified breakpoints (all user-settable breakpoints if no argument).\n\ |
c906108c SS |
16730 | The \"Type\" column indicates one of:\n\ |
16731 | \tbreakpoint - normal breakpoint\n\ | |
16732 | \twatchpoint - watchpoint\n\ | |
16733 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16734 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16735 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16736 | address and file/line number respectively.\n\ |
16737 | \n\ | |
16738 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16739 | are set to the address of the last breakpoint listed unless the command\n\ |
16740 | is prefixed with \"server \".\n\n\ | |
c906108c | 16741 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16742 | breakpoint set.")); |
c906108c | 16743 | |
6b04bdb7 MS |
16744 | add_info_alias ("b", "breakpoints", 1); |
16745 | ||
c906108c | 16746 | if (xdb_commands) |
1bedd215 AC |
16747 | add_com ("lb", class_breakpoint, breakpoints_info, _("\ |
16748 | Status of user-settable breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16749 | The \"Type\" column indicates one of:\n\ |
16750 | \tbreakpoint - normal breakpoint\n\ | |
16751 | \twatchpoint - watchpoint\n\ | |
16752 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16753 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16754 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16755 | address and file/line number respectively.\n\ |
16756 | \n\ | |
16757 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16758 | are set to the address of the last breakpoint listed unless the command\n\ |
16759 | is prefixed with \"server \".\n\n\ | |
c906108c | 16760 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16761 | breakpoint set.")); |
c906108c | 16762 | |
1a966eab AC |
16763 | add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\ |
16764 | Status of all breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16765 | The \"Type\" column indicates one of:\n\ |
16766 | \tbreakpoint - normal breakpoint\n\ | |
16767 | \twatchpoint - watchpoint\n\ | |
16768 | \tlongjmp - internal breakpoint used to step through longjmp()\n\ | |
16769 | \tlongjmp resume - internal breakpoint at the target of longjmp()\n\ | |
16770 | \tuntil - internal breakpoint used by the \"until\" command\n\ | |
1a966eab AC |
16771 | \tfinish - internal breakpoint used by the \"finish\" command\n\ |
16772 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
c906108c SS |
16773 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ |
16774 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1a966eab AC |
16775 | address and file/line number respectively.\n\ |
16776 | \n\ | |
16777 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16778 | are set to the address of the last breakpoint listed unless the command\n\ |
16779 | is prefixed with \"server \".\n\n\ | |
c906108c | 16780 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1a966eab | 16781 | breakpoint set."), |
c906108c SS |
16782 | &maintenanceinfolist); |
16783 | ||
44feb3ce TT |
16784 | add_prefix_cmd ("catch", class_breakpoint, catch_command, _("\ |
16785 | Set catchpoints to catch events."), | |
16786 | &catch_cmdlist, "catch ", | |
16787 | 0/*allow-unknown*/, &cmdlist); | |
16788 | ||
16789 | add_prefix_cmd ("tcatch", class_breakpoint, tcatch_command, _("\ | |
16790 | Set temporary catchpoints to catch events."), | |
16791 | &tcatch_cmdlist, "tcatch ", | |
16792 | 0/*allow-unknown*/, &cmdlist); | |
16793 | ||
44feb3ce TT |
16794 | add_catch_command ("fork", _("Catch calls to fork."), |
16795 | catch_fork_command_1, | |
a96d9b2e | 16796 | NULL, |
44feb3ce TT |
16797 | (void *) (uintptr_t) catch_fork_permanent, |
16798 | (void *) (uintptr_t) catch_fork_temporary); | |
16799 | add_catch_command ("vfork", _("Catch calls to vfork."), | |
16800 | catch_fork_command_1, | |
a96d9b2e | 16801 | NULL, |
44feb3ce TT |
16802 | (void *) (uintptr_t) catch_vfork_permanent, |
16803 | (void *) (uintptr_t) catch_vfork_temporary); | |
16804 | add_catch_command ("exec", _("Catch calls to exec."), | |
16805 | catch_exec_command_1, | |
a96d9b2e SDJ |
16806 | NULL, |
16807 | CATCH_PERMANENT, | |
16808 | CATCH_TEMPORARY); | |
edcc5120 TT |
16809 | add_catch_command ("load", _("Catch loads of shared libraries.\n\ |
16810 | Usage: catch load [REGEX]\n\ | |
16811 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16812 | catch_load_command_1, | |
16813 | NULL, | |
16814 | CATCH_PERMANENT, | |
16815 | CATCH_TEMPORARY); | |
16816 | add_catch_command ("unload", _("Catch unloads of shared libraries.\n\ | |
16817 | Usage: catch unload [REGEX]\n\ | |
16818 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16819 | catch_unload_command_1, | |
16820 | NULL, | |
16821 | CATCH_PERMANENT, | |
16822 | CATCH_TEMPORARY); | |
a96d9b2e SDJ |
16823 | add_catch_command ("syscall", _("\ |
16824 | Catch system calls by their names and/or numbers.\n\ | |
16825 | Arguments say which system calls to catch. If no arguments\n\ | |
16826 | are given, every system call will be caught.\n\ | |
16827 | Arguments, if given, should be one or more system call names\n\ | |
16828 | (if your system supports that), or system call numbers."), | |
16829 | catch_syscall_command_1, | |
16830 | catch_syscall_completer, | |
44feb3ce TT |
16831 | CATCH_PERMANENT, |
16832 | CATCH_TEMPORARY); | |
c5aa993b | 16833 | |
1bedd215 AC |
16834 | c = add_com ("watch", class_breakpoint, watch_command, _("\ |
16835 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16836 | Usage: watch [-l|-location] EXPRESSION\n\ |
c906108c | 16837 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16838 | an expression changes.\n\ |
16839 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16840 | the memory to which it refers.")); | |
65d12d83 | 16841 | set_cmd_completer (c, expression_completer); |
c906108c | 16842 | |
1bedd215 AC |
16843 | c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\ |
16844 | Set a read watchpoint for an expression.\n\ | |
06a64a0b | 16845 | Usage: rwatch [-l|-location] EXPRESSION\n\ |
c906108c | 16846 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16847 | an expression is read.\n\ |
16848 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16849 | the memory to which it refers.")); | |
65d12d83 | 16850 | set_cmd_completer (c, expression_completer); |
c906108c | 16851 | |
1bedd215 AC |
16852 | c = add_com ("awatch", class_breakpoint, awatch_command, _("\ |
16853 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16854 | Usage: awatch [-l|-location] EXPRESSION\n\ |
c906108c | 16855 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16856 | an expression is either read or written.\n\ |
16857 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16858 | the memory to which it refers.")); | |
65d12d83 | 16859 | set_cmd_completer (c, expression_completer); |
c906108c | 16860 | |
d77f58be | 16861 | add_info ("watchpoints", watchpoints_info, _("\ |
e5a67952 | 16862 | Status of specified watchpoints (all watchpoints if no argument).")); |
c906108c | 16863 | |
920d2a44 AC |
16864 | /* XXX: cagney/2005-02-23: This should be a boolean, and should |
16865 | respond to changes - contrary to the description. */ | |
85c07804 AC |
16866 | add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support, |
16867 | &can_use_hw_watchpoints, _("\ | |
16868 | Set debugger's willingness to use watchpoint hardware."), _("\ | |
16869 | Show debugger's willingness to use watchpoint hardware."), _("\ | |
c906108c SS |
16870 | If zero, gdb will not use hardware for new watchpoints, even if\n\ |
16871 | such is available. (However, any hardware watchpoints that were\n\ | |
16872 | created before setting this to nonzero, will continue to use watchpoint\n\ | |
85c07804 AC |
16873 | hardware.)"), |
16874 | NULL, | |
920d2a44 | 16875 | show_can_use_hw_watchpoints, |
85c07804 | 16876 | &setlist, &showlist); |
c906108c SS |
16877 | |
16878 | can_use_hw_watchpoints = 1; | |
fa8d40ab | 16879 | |
1042e4c0 SS |
16880 | /* Tracepoint manipulation commands. */ |
16881 | ||
16882 | c = add_com ("trace", class_breakpoint, trace_command, _("\ | |
16883 | Set a tracepoint at specified line or function.\n\ | |
16884 | \n" | |
16885 | BREAK_ARGS_HELP ("trace") "\n\ | |
16886 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16887 | set_cmd_completer (c, location_completer); | |
16888 | ||
16889 | add_com_alias ("tp", "trace", class_alias, 0); | |
16890 | add_com_alias ("tr", "trace", class_alias, 1); | |
16891 | add_com_alias ("tra", "trace", class_alias, 1); | |
16892 | add_com_alias ("trac", "trace", class_alias, 1); | |
16893 | ||
7a697b8d SS |
16894 | c = add_com ("ftrace", class_breakpoint, ftrace_command, _("\ |
16895 | Set a fast tracepoint at specified line or function.\n\ | |
16896 | \n" | |
16897 | BREAK_ARGS_HELP ("ftrace") "\n\ | |
16898 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16899 | set_cmd_completer (c, location_completer); | |
16900 | ||
0fb4aa4b PA |
16901 | c = add_com ("strace", class_breakpoint, strace_command, _("\ |
16902 | Set a static tracepoint at specified line, function or marker.\n\ | |
16903 | \n\ | |
16904 | strace [LOCATION] [if CONDITION]\n\ | |
16905 | LOCATION may be a line number, function name, \"*\" and an address,\n\ | |
16906 | or -m MARKER_ID.\n\ | |
16907 | If a line number is specified, probe the marker at start of code\n\ | |
16908 | for that line. If a function is specified, probe the marker at start\n\ | |
16909 | of code for that function. If an address is specified, probe the marker\n\ | |
16910 | at that exact address. If a marker id is specified, probe the marker\n\ | |
16911 | with that name. With no LOCATION, uses current execution address of\n\ | |
16912 | the selected stack frame.\n\ | |
16913 | Static tracepoints accept an extra collect action -- ``collect $_sdata''.\n\ | |
16914 | This collects arbitrary user data passed in the probe point call to the\n\ | |
16915 | tracing library. You can inspect it when analyzing the trace buffer,\n\ | |
16916 | by printing the $_sdata variable like any other convenience variable.\n\ | |
16917 | \n\ | |
16918 | CONDITION is a boolean expression.\n\ | |
16919 | \n\ | |
d41c0fc8 PA |
16920 | Multiple tracepoints at one place are permitted, and useful if their\n\ |
16921 | conditions are different.\n\ | |
0fb4aa4b PA |
16922 | \n\ |
16923 | Do \"help breakpoints\" for info on other commands dealing with breakpoints.\n\ | |
16924 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16925 | set_cmd_completer (c, location_completer); | |
16926 | ||
1042e4c0 | 16927 | add_info ("tracepoints", tracepoints_info, _("\ |
e5a67952 | 16928 | Status of specified tracepoints (all tracepoints if no argument).\n\ |
1042e4c0 SS |
16929 | Convenience variable \"$tpnum\" contains the number of the\n\ |
16930 | last tracepoint set.")); | |
16931 | ||
16932 | add_info_alias ("tp", "tracepoints", 1); | |
16933 | ||
16934 | add_cmd ("tracepoints", class_trace, delete_trace_command, _("\ | |
16935 | Delete specified tracepoints.\n\ | |
16936 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16937 | No argument means delete all tracepoints."), | |
16938 | &deletelist); | |
7e20dfcd | 16939 | add_alias_cmd ("tr", "tracepoints", class_trace, 1, &deletelist); |
1042e4c0 SS |
16940 | |
16941 | c = add_cmd ("tracepoints", class_trace, disable_trace_command, _("\ | |
16942 | Disable specified tracepoints.\n\ | |
16943 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16944 | No argument means disable all tracepoints."), | |
16945 | &disablelist); | |
16946 | deprecate_cmd (c, "disable"); | |
16947 | ||
16948 | c = add_cmd ("tracepoints", class_trace, enable_trace_command, _("\ | |
16949 | Enable specified tracepoints.\n\ | |
16950 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16951 | No argument means enable all tracepoints."), | |
16952 | &enablelist); | |
16953 | deprecate_cmd (c, "enable"); | |
16954 | ||
16955 | add_com ("passcount", class_trace, trace_pass_command, _("\ | |
16956 | Set the passcount for a tracepoint.\n\ | |
16957 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
16958 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
16959 | if TPNUM is omitted, passcount refers to the last tracepoint defined.")); | |
16960 | ||
6149aea9 PA |
16961 | add_prefix_cmd ("save", class_breakpoint, save_command, |
16962 | _("Save breakpoint definitions as a script."), | |
16963 | &save_cmdlist, "save ", | |
16964 | 0/*allow-unknown*/, &cmdlist); | |
16965 | ||
16966 | c = add_cmd ("breakpoints", class_breakpoint, save_breakpoints_command, _("\ | |
16967 | Save current breakpoint definitions as a script.\n\ | |
cce7e648 | 16968 | This includes all types of breakpoints (breakpoints, watchpoints,\n\ |
6149aea9 PA |
16969 | catchpoints, tracepoints). Use the 'source' command in another debug\n\ |
16970 | session to restore them."), | |
16971 | &save_cmdlist); | |
16972 | set_cmd_completer (c, filename_completer); | |
16973 | ||
16974 | c = add_cmd ("tracepoints", class_trace, save_tracepoints_command, _("\ | |
1042e4c0 | 16975 | Save current tracepoint definitions as a script.\n\ |
6149aea9 PA |
16976 | Use the 'source' command in another debug session to restore them."), |
16977 | &save_cmdlist); | |
1042e4c0 SS |
16978 | set_cmd_completer (c, filename_completer); |
16979 | ||
6149aea9 PA |
16980 | c = add_com_alias ("save-tracepoints", "save tracepoints", class_trace, 0); |
16981 | deprecate_cmd (c, "save tracepoints"); | |
16982 | ||
1bedd215 | 16983 | add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16984 | Breakpoint specific settings\n\ |
16985 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16986 | pending breakpoint behavior"), |
fa8d40ab JJ |
16987 | &breakpoint_set_cmdlist, "set breakpoint ", |
16988 | 0/*allow-unknown*/, &setlist); | |
1bedd215 | 16989 | add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16990 | Breakpoint specific settings\n\ |
16991 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16992 | pending breakpoint behavior"), |
fa8d40ab JJ |
16993 | &breakpoint_show_cmdlist, "show breakpoint ", |
16994 | 0/*allow-unknown*/, &showlist); | |
16995 | ||
7915a72c AC |
16996 | add_setshow_auto_boolean_cmd ("pending", no_class, |
16997 | &pending_break_support, _("\ | |
16998 | Set debugger's behavior regarding pending breakpoints."), _("\ | |
16999 | Show debugger's behavior regarding pending breakpoints."), _("\ | |
6e1d7d6c AC |
17000 | If on, an unrecognized breakpoint location will cause gdb to create a\n\ |
17001 | pending breakpoint. If off, an unrecognized breakpoint location results in\n\ | |
17002 | an error. If auto, an unrecognized breakpoint location results in a\n\ | |
7915a72c | 17003 | user-query to see if a pending breakpoint should be created."), |
2c5b56ce | 17004 | NULL, |
920d2a44 | 17005 | show_pending_break_support, |
6e1d7d6c AC |
17006 | &breakpoint_set_cmdlist, |
17007 | &breakpoint_show_cmdlist); | |
fa8d40ab JJ |
17008 | |
17009 | pending_break_support = AUTO_BOOLEAN_AUTO; | |
765dc015 VP |
17010 | |
17011 | add_setshow_boolean_cmd ("auto-hw", no_class, | |
17012 | &automatic_hardware_breakpoints, _("\ | |
17013 | Set automatic usage of hardware breakpoints."), _("\ | |
17014 | Show automatic usage of hardware breakpoints."), _("\ | |
17015 | If set, the debugger will automatically use hardware breakpoints for\n\ | |
17016 | breakpoints set with \"break\" but falling in read-only memory. If not set,\n\ | |
17017 | a warning will be emitted for such breakpoints."), | |
17018 | NULL, | |
17019 | show_automatic_hardware_breakpoints, | |
17020 | &breakpoint_set_cmdlist, | |
17021 | &breakpoint_show_cmdlist); | |
74960c60 | 17022 | |
72d0e2c5 YQ |
17023 | add_setshow_auto_boolean_cmd ("always-inserted", class_support, |
17024 | &always_inserted_mode, _("\ | |
74960c60 VP |
17025 | Set mode for inserting breakpoints."), _("\ |
17026 | Show mode for inserting breakpoints."), _("\ | |
33e5cbd6 PA |
17027 | When this mode is off, breakpoints are inserted in inferior when it is\n\ |
17028 | resumed, and removed when execution stops. When this mode is on,\n\ | |
17029 | breakpoints are inserted immediately and removed only when the user\n\ | |
17030 | deletes the breakpoint. When this mode is auto (which is the default),\n\ | |
17031 | the behaviour depends on the non-stop setting (see help set non-stop).\n\ | |
17032 | In this case, if gdb is controlling the inferior in non-stop mode, gdb\n\ | |
17033 | behaves as if always-inserted mode is on; if gdb is controlling the\n\ | |
17034 | inferior in all-stop mode, gdb behaves as if always-inserted mode is off."), | |
72d0e2c5 YQ |
17035 | NULL, |
17036 | &show_always_inserted_mode, | |
17037 | &breakpoint_set_cmdlist, | |
17038 | &breakpoint_show_cmdlist); | |
f1310107 | 17039 | |
b775012e LM |
17040 | add_setshow_enum_cmd ("condition-evaluation", class_breakpoint, |
17041 | condition_evaluation_enums, | |
17042 | &condition_evaluation_mode_1, _("\ | |
17043 | Set mode of breakpoint condition evaluation."), _("\ | |
17044 | Show mode of breakpoint condition evaluation."), _("\ | |
d1cda5d9 | 17045 | When this is set to \"host\", breakpoint conditions will be\n\ |
b775012e LM |
17046 | evaluated on the host's side by GDB. When it is set to \"target\",\n\ |
17047 | breakpoint conditions will be downloaded to the target (if the target\n\ | |
17048 | supports such feature) and conditions will be evaluated on the target's side.\n\ | |
17049 | If this is set to \"auto\" (default), this will be automatically set to\n\ | |
17050 | \"target\" if it supports condition evaluation, otherwise it will\n\ | |
17051 | be set to \"gdb\""), | |
17052 | &set_condition_evaluation_mode, | |
17053 | &show_condition_evaluation_mode, | |
17054 | &breakpoint_set_cmdlist, | |
17055 | &breakpoint_show_cmdlist); | |
17056 | ||
f1310107 TJB |
17057 | add_com ("break-range", class_breakpoint, break_range_command, _("\ |
17058 | Set a breakpoint for an address range.\n\ | |
17059 | break-range START-LOCATION, END-LOCATION\n\ | |
17060 | where START-LOCATION and END-LOCATION can be one of the following:\n\ | |
17061 | LINENUM, for that line in the current file,\n\ | |
17062 | FILE:LINENUM, for that line in that file,\n\ | |
17063 | +OFFSET, for that number of lines after the current line\n\ | |
17064 | or the start of the range\n\ | |
17065 | FUNCTION, for the first line in that function,\n\ | |
17066 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
17067 | *ADDRESS, for the instruction at that address.\n\ | |
17068 | \n\ | |
17069 | The breakpoint will stop execution of the inferior whenever it executes\n\ | |
17070 | an instruction at any address within the [START-LOCATION, END-LOCATION]\n\ | |
17071 | range (including START-LOCATION and END-LOCATION).")); | |
17072 | ||
e7e0cddf SS |
17073 | c = add_com ("dprintf", class_breakpoint, dprintf_command, _("\ |
17074 | Set a dynamic printf at specified line or function.\n\ | |
17075 | dprintf location,format string,arg1,arg2,...\n\ | |
17076 | location may be a line number, function name, or \"*\" and an address.\n\ | |
17077 | If a line number is specified, break at start of code for that line.\n\ | |
0e4777df | 17078 | If a function is specified, break at start of code for that function.")); |
e7e0cddf SS |
17079 | set_cmd_completer (c, location_completer); |
17080 | ||
17081 | add_setshow_enum_cmd ("dprintf-style", class_support, | |
17082 | dprintf_style_enums, &dprintf_style, _("\ | |
17083 | Set the style of usage for dynamic printf."), _("\ | |
17084 | Show the style of usage for dynamic printf."), _("\ | |
17085 | This setting chooses how GDB will do a dynamic printf.\n\ | |
17086 | If the value is \"gdb\", then the printing is done by GDB to its own\n\ | |
17087 | console, as with the \"printf\" command.\n\ | |
17088 | If the value is \"call\", the print is done by calling a function in your\n\ | |
17089 | program; by default printf(), but you can choose a different function or\n\ | |
17090 | output stream by setting dprintf-function and dprintf-channel."), | |
17091 | update_dprintf_commands, NULL, | |
17092 | &setlist, &showlist); | |
17093 | ||
17094 | dprintf_function = xstrdup ("printf"); | |
17095 | add_setshow_string_cmd ("dprintf-function", class_support, | |
17096 | &dprintf_function, _("\ | |
17097 | Set the function to use for dynamic printf"), _("\ | |
17098 | Show the function to use for dynamic printf"), NULL, | |
17099 | update_dprintf_commands, NULL, | |
17100 | &setlist, &showlist); | |
17101 | ||
17102 | dprintf_channel = xstrdup (""); | |
17103 | add_setshow_string_cmd ("dprintf-channel", class_support, | |
17104 | &dprintf_channel, _("\ | |
17105 | Set the channel to use for dynamic printf"), _("\ | |
17106 | Show the channel to use for dynamic printf"), NULL, | |
17107 | update_dprintf_commands, NULL, | |
17108 | &setlist, &showlist); | |
17109 | ||
d3ce09f5 SS |
17110 | add_setshow_boolean_cmd ("disconnected-dprintf", no_class, |
17111 | &disconnected_dprintf, _("\ | |
17112 | Set whether dprintf continues after GDB disconnects."), _("\ | |
17113 | Show whether dprintf continues after GDB disconnects."), _("\ | |
17114 | Use this to let dprintf commands continue to hit and produce output\n\ | |
17115 | even if GDB disconnects or detaches from the target."), | |
17116 | NULL, | |
17117 | NULL, | |
17118 | &setlist, &showlist); | |
17119 | ||
17120 | add_com ("agent-printf", class_vars, agent_printf_command, _("\ | |
17121 | agent-printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
17122 | (target agent only) This is useful for formatted output in user-defined commands.")); | |
17123 | ||
765dc015 | 17124 | automatic_hardware_breakpoints = 1; |
f3b1572e PA |
17125 | |
17126 | observer_attach_about_to_proceed (breakpoint_about_to_proceed); | |
49fa26b0 | 17127 | observer_attach_thread_exit (remove_threaded_breakpoints); |
c906108c | 17128 | } |