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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
3666a048 | 3 | Copyright (C) 1997-2021 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" | |
5af949e3 | 21 | #include "arch-utils.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "frame.h" | |
c906108c SS |
24 | #include "gdbtypes.h" |
25 | #include "expression.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "value.h" | |
28 | #include "target.h" | |
68c765e2 | 29 | #include "target-dcache.h" |
c906108c | 30 | #include "language.h" |
104c1213 | 31 | #include "inferior.h" |
1042e4c0 | 32 | #include "breakpoint.h" |
104c1213 | 33 | #include "tracepoint.h" |
c5f0f3d0 | 34 | #include "linespec.h" |
4e052eda | 35 | #include "regcache.h" |
c94fdfd0 | 36 | #include "completer.h" |
fe898f56 | 37 | #include "block.h" |
de4f826b | 38 | #include "dictionary.h" |
76727919 | 39 | #include "observable.h" |
029a67e4 | 40 | #include "user-regs.h" |
79a45b7d | 41 | #include "valprint.h" |
41575630 | 42 | #include "gdbcore.h" |
768a979c | 43 | #include "objfiles.h" |
35b1e5cc | 44 | #include "filenames.h" |
00bf0b85 | 45 | #include "gdbthread.h" |
2c58c0a9 | 46 | #include "stack.h" |
176a6961 | 47 | #include "remote.h" |
0fb4aa4b | 48 | #include "source.h" |
c906108c SS |
49 | #include "ax.h" |
50 | #include "ax-gdb.h" | |
2a7498d8 | 51 | #include "memrange.h" |
3065dfb6 | 52 | #include "cli/cli-utils.h" |
55aa24fb | 53 | #include "probe.h" |
268a13a5 TT |
54 | #include "gdbsupport/filestuff.h" |
55 | #include "gdbsupport/rsp-low.h" | |
7951c4eb | 56 | #include "tracefile.h" |
f00aae0f | 57 | #include "location.h" |
325fac50 | 58 | #include <algorithm> |
e43b10e1 | 59 | #include "cli/cli-style.h" |
413403fc | 60 | #include "expop.h" |
c906108c | 61 | |
c906108c | 62 | #include <unistd.h> |
c906108c | 63 | |
d183932d MS |
64 | /* Maximum length of an agent aexpression. |
65 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
66 | (which includes everything -- including the checksum), and assumes |
67 | the worst case of maximum length for each of the pieces of a | |
68 | continuation packet. | |
c5aa993b | 69 | |
c906108c SS |
70 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
71 | large. (400 - 31)/2 == 184 */ | |
72 | #define MAX_AGENT_EXPR_LEN 184 | |
73 | ||
98c5b216 TT |
74 | /* A hook used to notify the UI of tracepoint operations. */ |
75 | ||
76 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
77 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 78 | |
c906108c SS |
79 | /* |
80 | Tracepoint.c: | |
81 | ||
82 | This module defines the following debugger commands: | |
83 | trace : set a tracepoint on a function, line, or address. | |
84 | info trace : list all debugger-defined tracepoints. | |
85 | delete trace : delete one or more tracepoints. | |
86 | enable trace : enable one or more tracepoints. | |
87 | disable trace : disable one or more tracepoints. | |
88 | actions : specify actions to be taken at a tracepoint. | |
89 | passcount : specify a pass count for a tracepoint. | |
90 | tstart : start a trace experiment. | |
91 | tstop : stop a trace experiment. | |
92 | tstatus : query the status of a trace experiment. | |
93 | tfind : find a trace frame in the trace buffer. | |
94 | tdump : print everything collected at the current tracepoint. | |
95 | save-tracepoints : write tracepoint setup into a file. | |
96 | ||
97 | This module defines the following user-visible debugger variables: | |
98 | $trace_frame : sequence number of trace frame currently being debugged. | |
99 | $trace_line : source line of trace frame currently being debugged. | |
100 | $trace_file : source file of trace frame currently being debugged. | |
101 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 102 | */ |
c906108c SS |
103 | |
104 | ||
105 | /* ======= Important global variables: ======= */ | |
106 | ||
f61e138d SS |
107 | /* The list of all trace state variables. We don't retain pointers to |
108 | any of these for any reason - API is by name or number only - so it | |
109 | works to have a vector of objects. */ | |
110 | ||
c252925c | 111 | static std::vector<trace_state_variable> tvariables; |
f61e138d SS |
112 | |
113 | /* The next integer to assign to a variable. */ | |
114 | ||
115 | static int next_tsv_number = 1; | |
116 | ||
c906108c SS |
117 | /* Number of last traceframe collected. */ |
118 | static int traceframe_number; | |
119 | ||
120 | /* Tracepoint for last traceframe collected. */ | |
121 | static int tracepoint_number; | |
122 | ||
b3b9301e PA |
123 | /* The traceframe info of the current traceframe. NULL if we haven't |
124 | yet attempted to fetch it, or if the target does not support | |
125 | fetching this object, or if we're not inspecting a traceframe | |
126 | presently. */ | |
2098b393 | 127 | static traceframe_info_up current_traceframe_info; |
b3b9301e | 128 | |
c378eb4e | 129 | /* Tracing command lists. */ |
c906108c SS |
130 | static struct cmd_list_element *tfindlist; |
131 | ||
236f1d4d | 132 | /* List of expressions to collect by default at each tracepoint hit. */ |
bde6261a | 133 | char *default_collect; |
236f1d4d | 134 | |
491144b5 | 135 | static bool disconnected_tracing; |
d5551862 | 136 | |
4daf5ac0 SS |
137 | /* This variable controls whether we ask the target for a linear or |
138 | circular trace buffer. */ | |
139 | ||
491144b5 | 140 | static bool circular_trace_buffer; |
4daf5ac0 | 141 | |
f6f899bf HAQ |
142 | /* This variable is the requested trace buffer size, or -1 to indicate |
143 | that we don't care and leave it up to the target to set a size. */ | |
144 | ||
145 | static int trace_buffer_size = -1; | |
146 | ||
f196051f SS |
147 | /* Textual notes applying to the current and/or future trace runs. */ |
148 | ||
6bd434d6 | 149 | static char *trace_user = NULL; |
f196051f SS |
150 | |
151 | /* Textual notes applying to the current and/or future trace runs. */ | |
152 | ||
6bd434d6 | 153 | static char *trace_notes = NULL; |
f196051f SS |
154 | |
155 | /* Textual notes applying to the stopping of a trace. */ | |
156 | ||
6bd434d6 | 157 | static char *trace_stop_notes = NULL; |
f196051f | 158 | |
c906108c | 159 | /* support routines */ |
c906108c SS |
160 | |
161 | struct collection_list; | |
47b667de | 162 | static char *mem2hex (gdb_byte *, char *, int); |
392a587b | 163 | |
12973681 | 164 | static counted_command_line all_tracepoint_actions (struct breakpoint *); |
00bf0b85 | 165 | |
00bf0b85 SS |
166 | static struct trace_status trace_status; |
167 | ||
7951c4eb | 168 | const char *stop_reason_names[] = { |
00bf0b85 SS |
169 | "tunknown", |
170 | "tnotrun", | |
171 | "tstop", | |
172 | "tfull", | |
173 | "tdisconnected", | |
6c28cbf2 SS |
174 | "tpasscount", |
175 | "terror" | |
00bf0b85 SS |
176 | }; |
177 | ||
178 | struct trace_status * | |
eeae04df | 179 | current_trace_status (void) |
00bf0b85 SS |
180 | { |
181 | return &trace_status; | |
182 | } | |
183 | ||
7a9dd1b2 | 184 | /* Free and clear the traceframe info cache of the current |
b3b9301e PA |
185 | traceframe. */ |
186 | ||
187 | static void | |
188 | clear_traceframe_info (void) | |
189 | { | |
8d3c73ef | 190 | current_traceframe_info = NULL; |
b3b9301e PA |
191 | } |
192 | ||
c906108c SS |
193 | /* Set traceframe number to NUM. */ |
194 | static void | |
fba45db2 | 195 | set_traceframe_num (int num) |
c906108c SS |
196 | { |
197 | traceframe_number = num; | |
4fa62494 | 198 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
199 | } |
200 | ||
201 | /* Set tracepoint number to NUM. */ | |
202 | static void | |
fba45db2 | 203 | set_tracepoint_num (int num) |
c906108c SS |
204 | { |
205 | tracepoint_number = num; | |
4fa62494 | 206 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
207 | } |
208 | ||
209 | /* Set externally visible debug variables for querying/printing | |
c378eb4e | 210 | the traceframe context (line, function, file). */ |
c906108c SS |
211 | |
212 | static void | |
fb14de7b | 213 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 214 | { |
fb14de7b | 215 | CORE_ADDR trace_pc; |
24a00813 | 216 | struct symbol *traceframe_fun; |
51abb421 | 217 | symtab_and_line traceframe_sal; |
fb14de7b | 218 | |
dba09041 PA |
219 | /* Save as globals for internal use. */ |
220 | if (trace_frame != NULL | |
221 | && get_frame_pc_if_available (trace_frame, &trace_pc)) | |
222 | { | |
223 | traceframe_sal = find_pc_line (trace_pc, 0); | |
224 | traceframe_fun = find_pc_function (trace_pc); | |
225 | ||
226 | /* Save linenumber as "$trace_line", a debugger variable visible to | |
227 | users. */ | |
228 | set_internalvar_integer (lookup_internalvar ("trace_line"), | |
229 | traceframe_sal.line); | |
230 | } | |
231 | else | |
c906108c | 232 | { |
dba09041 | 233 | traceframe_fun = NULL; |
4fa62494 | 234 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); |
c906108c SS |
235 | } |
236 | ||
d183932d MS |
237 | /* Save func name as "$trace_func", a debugger variable visible to |
238 | users. */ | |
4fa62494 | 239 | if (traceframe_fun == NULL |
987012b8 | 240 | || traceframe_fun->linkage_name () == NULL) |
4fa62494 | 241 | clear_internalvar (lookup_internalvar ("trace_func")); |
c906108c | 242 | else |
78267919 | 243 | set_internalvar_string (lookup_internalvar ("trace_func"), |
987012b8 | 244 | traceframe_fun->linkage_name ()); |
c906108c | 245 | |
d183932d MS |
246 | /* Save file name as "$trace_file", a debugger variable visible to |
247 | users. */ | |
4e04028d | 248 | if (traceframe_sal.symtab == NULL) |
4fa62494 | 249 | clear_internalvar (lookup_internalvar ("trace_file")); |
c906108c | 250 | else |
78267919 | 251 | set_internalvar_string (lookup_internalvar ("trace_file"), |
05cba821 | 252 | symtab_to_filename_for_display (traceframe_sal.symtab)); |
c906108c SS |
253 | } |
254 | ||
f61e138d SS |
255 | /* Create a new trace state variable with the given name. */ |
256 | ||
257 | struct trace_state_variable * | |
258 | create_trace_state_variable (const char *name) | |
259 | { | |
c252925c SM |
260 | tvariables.emplace_back (name, next_tsv_number++); |
261 | return &tvariables.back (); | |
f61e138d SS |
262 | } |
263 | ||
264 | /* Look for a trace state variable of the given name. */ | |
265 | ||
266 | struct trace_state_variable * | |
267 | find_trace_state_variable (const char *name) | |
268 | { | |
c252925c SM |
269 | for (trace_state_variable &tsv : tvariables) |
270 | if (tsv.name == name) | |
271 | return &tsv; | |
f61e138d SS |
272 | |
273 | return NULL; | |
274 | } | |
275 | ||
dc673c81 YQ |
276 | /* Look for a trace state variable of the given number. Return NULL if |
277 | not found. */ | |
278 | ||
279 | struct trace_state_variable * | |
280 | find_trace_state_variable_by_number (int number) | |
281 | { | |
c252925c SM |
282 | for (trace_state_variable &tsv : tvariables) |
283 | if (tsv.number == number) | |
284 | return &tsv; | |
dc673c81 YQ |
285 | |
286 | return NULL; | |
287 | } | |
288 | ||
70221824 | 289 | static void |
f61e138d SS |
290 | delete_trace_state_variable (const char *name) |
291 | { | |
c252925c SM |
292 | for (auto it = tvariables.begin (); it != tvariables.end (); it++) |
293 | if (it->name == name) | |
f61e138d | 294 | { |
c252925c SM |
295 | gdb::observers::tsv_deleted.notify (&*it); |
296 | tvariables.erase (it); | |
f61e138d SS |
297 | return; |
298 | } | |
299 | ||
300 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
301 | } | |
302 | ||
1773c82c HAQ |
303 | /* Throws an error if NAME is not valid syntax for a trace state |
304 | variable's name. */ | |
305 | ||
306 | void | |
307 | validate_trace_state_variable_name (const char *name) | |
308 | { | |
309 | const char *p; | |
310 | ||
311 | if (*name == '\0') | |
312 | error (_("Must supply a non-empty variable name")); | |
313 | ||
314 | /* All digits in the name is reserved for value history | |
315 | references. */ | |
316 | for (p = name; isdigit (*p); p++) | |
317 | ; | |
318 | if (*p == '\0') | |
319 | error (_("$%s is not a valid trace state variable name"), name); | |
320 | ||
321 | for (p = name; isalnum (*p) || *p == '_'; p++) | |
322 | ; | |
323 | if (*p != '\0') | |
324 | error (_("$%s is not a valid trace state variable name"), name); | |
325 | } | |
326 | ||
f61e138d SS |
327 | /* The 'tvariable' command collects a name and optional expression to |
328 | evaluate into an initial value. */ | |
329 | ||
70221824 | 330 | static void |
0b39b52e | 331 | trace_variable_command (const char *args, int from_tty) |
f61e138d | 332 | { |
f61e138d SS |
333 | LONGEST initval = 0; |
334 | struct trace_state_variable *tsv; | |
0b39b52e | 335 | const char *name_start, *p; |
f61e138d SS |
336 | |
337 | if (!args || !*args) | |
1773c82c HAQ |
338 | error_no_arg (_("Syntax is $NAME [ = EXPR ]")); |
339 | ||
340 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
341 | p = skip_spaces (args); | |
f61e138d | 342 | |
1773c82c HAQ |
343 | if (*p++ != '$') |
344 | error (_("Name of trace variable should start with '$'")); | |
f61e138d | 345 | |
8abcee91 | 346 | name_start = p; |
1773c82c HAQ |
347 | while (isalnum (*p) || *p == '_') |
348 | p++; | |
8abcee91 | 349 | std::string name (name_start, p - name_start); |
f61e138d | 350 | |
1773c82c HAQ |
351 | p = skip_spaces (p); |
352 | if (*p != '=' && *p != '\0') | |
f61e138d SS |
353 | error (_("Syntax must be $NAME [ = EXPR ]")); |
354 | ||
8abcee91 | 355 | validate_trace_state_variable_name (name.c_str ()); |
f61e138d | 356 | |
1773c82c HAQ |
357 | if (*p == '=') |
358 | initval = value_as_long (parse_and_eval (++p)); | |
f61e138d SS |
359 | |
360 | /* If the variable already exists, just change its initial value. */ | |
8abcee91 | 361 | tsv = find_trace_state_variable (name.c_str ()); |
f61e138d SS |
362 | if (tsv) |
363 | { | |
134a2066 YQ |
364 | if (tsv->initial_value != initval) |
365 | { | |
366 | tsv->initial_value = initval; | |
76727919 | 367 | gdb::observers::tsv_modified.notify (tsv); |
134a2066 | 368 | } |
3e43a32a MS |
369 | printf_filtered (_("Trace state variable $%s " |
370 | "now has initial value %s.\n"), | |
c252925c | 371 | tsv->name.c_str (), plongest (tsv->initial_value)); |
f61e138d SS |
372 | return; |
373 | } | |
374 | ||
375 | /* Create a new variable. */ | |
8abcee91 | 376 | tsv = create_trace_state_variable (name.c_str ()); |
f61e138d SS |
377 | tsv->initial_value = initval; |
378 | ||
76727919 | 379 | gdb::observers::tsv_created.notify (tsv); |
bb25a15c | 380 | |
3e43a32a MS |
381 | printf_filtered (_("Trace state variable $%s " |
382 | "created, with initial value %s.\n"), | |
c252925c | 383 | tsv->name.c_str (), plongest (tsv->initial_value)); |
f61e138d SS |
384 | } |
385 | ||
70221824 | 386 | static void |
2983f7cb | 387 | delete_trace_variable_command (const char *args, int from_tty) |
f61e138d | 388 | { |
f61e138d SS |
389 | if (args == NULL) |
390 | { | |
391 | if (query (_("Delete all trace state variables? "))) | |
c252925c | 392 | tvariables.clear (); |
f61e138d | 393 | dont_repeat (); |
76727919 | 394 | gdb::observers::tsv_deleted.notify (NULL); |
f61e138d SS |
395 | return; |
396 | } | |
397 | ||
773a1edc | 398 | gdb_argv argv (args); |
f61e138d | 399 | |
773a1edc | 400 | for (char *arg : argv) |
f61e138d | 401 | { |
773a1edc TT |
402 | if (*arg == '$') |
403 | delete_trace_state_variable (arg + 1); | |
f61e138d | 404 | else |
773a1edc | 405 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), arg); |
f61e138d SS |
406 | } |
407 | ||
f61e138d SS |
408 | dont_repeat (); |
409 | } | |
410 | ||
40e1c229 VP |
411 | void |
412 | tvariables_info_1 (void) | |
f61e138d | 413 | { |
79a45e25 | 414 | struct ui_out *uiout = current_uiout; |
f61e138d | 415 | |
35b1e5cc | 416 | /* Try to acquire values from the target. */ |
c252925c SM |
417 | for (trace_state_variable &tsv : tvariables) |
418 | tsv.value_known | |
419 | = target_get_trace_state_variable_value (tsv.number, &tsv.value); | |
35b1e5cc | 420 | |
f3c6abab TT |
421 | { |
422 | ui_out_emit_table table_emitter (uiout, 3, tvariables.size (), | |
423 | "trace-variables"); | |
424 | uiout->table_header (15, ui_left, "name", "Name"); | |
425 | uiout->table_header (11, ui_left, "initial", "Initial"); | |
426 | uiout->table_header (11, ui_left, "current", "Current"); | |
40e1c229 | 427 | |
f3c6abab | 428 | uiout->table_body (); |
f61e138d | 429 | |
f3c6abab TT |
430 | for (const trace_state_variable &tsv : tvariables) |
431 | { | |
432 | const char *c; | |
433 | ||
434 | ui_out_emit_tuple tuple_emitter (uiout, "variable"); | |
435 | ||
436 | uiout->field_string ("name", std::string ("$") + tsv.name); | |
437 | uiout->field_string ("initial", plongest (tsv.initial_value)); | |
438 | ||
7f6aba03 | 439 | ui_file_style style; |
f3c6abab TT |
440 | if (tsv.value_known) |
441 | c = plongest (tsv.value); | |
442 | else if (uiout->is_mi_like_p ()) | |
443 | /* For MI, we prefer not to use magic string constants, but rather | |
444 | omit the field completely. The difference between unknown and | |
445 | undefined does not seem important enough to represent. */ | |
446 | c = NULL; | |
447 | else if (current_trace_status ()->running || traceframe_number >= 0) | |
7f6aba03 TT |
448 | { |
449 | /* The value is/was defined, but we don't have it. */ | |
450 | c = "<unknown>"; | |
451 | style = metadata_style.style (); | |
452 | } | |
f3c6abab | 453 | else |
7f6aba03 TT |
454 | { |
455 | /* It is not meaningful to ask about the value. */ | |
456 | c = "<undefined>"; | |
457 | style = metadata_style.style (); | |
458 | } | |
f3c6abab | 459 | if (c) |
7f6aba03 | 460 | uiout->field_string ("current", c, style); |
f3c6abab TT |
461 | uiout->text ("\n"); |
462 | } | |
463 | } | |
464 | ||
465 | if (tvariables.empty ()) | |
466 | uiout->text (_("No trace state variables.\n")); | |
40e1c229 VP |
467 | } |
468 | ||
469 | /* List all the trace state variables. */ | |
470 | ||
471 | static void | |
1d12d88f | 472 | info_tvariables_command (const char *args, int from_tty) |
40e1c229 VP |
473 | { |
474 | tvariables_info_1 (); | |
f61e138d SS |
475 | } |
476 | ||
8bf6485c SS |
477 | /* Stash definitions of tsvs into the given file. */ |
478 | ||
479 | void | |
480 | save_trace_state_variables (struct ui_file *fp) | |
481 | { | |
c252925c | 482 | for (const trace_state_variable &tsv : tvariables) |
8bf6485c | 483 | { |
c252925c SM |
484 | fprintf_unfiltered (fp, "tvariable $%s", tsv.name.c_str ()); |
485 | if (tsv.initial_value) | |
486 | fprintf_unfiltered (fp, " = %s", plongest (tsv.initial_value)); | |
8bf6485c SS |
487 | fprintf_unfiltered (fp, "\n"); |
488 | } | |
489 | } | |
490 | ||
c906108c SS |
491 | /* ACTIONS functions: */ |
492 | ||
c906108c | 493 | /* The three functions: |
c5aa993b JM |
494 | collect_pseudocommand, |
495 | while_stepping_pseudocommand, and | |
496 | end_actions_pseudocommand | |
c906108c SS |
497 | are placeholders for "commands" that are actually ONLY to be used |
498 | within a tracepoint action list. If the actual function is ever called, | |
499 | it means that somebody issued the "command" at the top level, | |
500 | which is always an error. */ | |
501 | ||
7b3ae3a6 | 502 | static void |
0b39b52e | 503 | end_actions_pseudocommand (const char *args, int from_tty) |
c906108c | 504 | { |
8a3fe4f8 | 505 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
506 | } |
507 | ||
7b3ae3a6 | 508 | static void |
0b39b52e | 509 | while_stepping_pseudocommand (const char *args, int from_tty) |
c906108c | 510 | { |
8a3fe4f8 | 511 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
512 | } |
513 | ||
514 | static void | |
0b39b52e | 515 | collect_pseudocommand (const char *args, int from_tty) |
c906108c | 516 | { |
8a3fe4f8 | 517 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
518 | } |
519 | ||
6da95a67 | 520 | static void |
0b39b52e | 521 | teval_pseudocommand (const char *args, int from_tty) |
6da95a67 SS |
522 | { |
523 | error (_("This command can only be used in a tracepoint actions list.")); | |
524 | } | |
525 | ||
3065dfb6 SS |
526 | /* Parse any collection options, such as /s for strings. */ |
527 | ||
6f937416 | 528 | const char * |
92bc6a20 | 529 | decode_agent_options (const char *exp, int *trace_string) |
3065dfb6 SS |
530 | { |
531 | struct value_print_options opts; | |
532 | ||
92bc6a20 TT |
533 | *trace_string = 0; |
534 | ||
3065dfb6 SS |
535 | if (*exp != '/') |
536 | return exp; | |
537 | ||
538 | /* Call this to borrow the print elements default for collection | |
539 | size. */ | |
540 | get_user_print_options (&opts); | |
541 | ||
542 | exp++; | |
543 | if (*exp == 's') | |
544 | { | |
545 | if (target_supports_string_tracing ()) | |
546 | { | |
547 | /* Allow an optional decimal number giving an explicit maximum | |
548 | string length, defaulting it to the "print elements" value; | |
549 | so "collect/s80 mystr" gets at most 80 bytes of string. */ | |
92bc6a20 | 550 | *trace_string = opts.print_max; |
3065dfb6 SS |
551 | exp++; |
552 | if (*exp >= '0' && *exp <= '9') | |
92bc6a20 | 553 | *trace_string = atoi (exp); |
3065dfb6 SS |
554 | while (*exp >= '0' && *exp <= '9') |
555 | exp++; | |
556 | } | |
557 | else | |
558 | error (_("Target does not support \"/s\" option for string tracing.")); | |
559 | } | |
560 | else | |
561 | error (_("Undefined collection format \"%c\"."), *exp); | |
562 | ||
f1735a53 | 563 | exp = skip_spaces (exp); |
3065dfb6 SS |
564 | |
565 | return exp; | |
566 | } | |
567 | ||
c906108c SS |
568 | /* Enter a list of actions for a tracepoint. */ |
569 | static void | |
0b39b52e | 570 | actions_command (const char *args, int from_tty) |
c906108c | 571 | { |
d9b3f62e | 572 | struct tracepoint *t; |
c906108c | 573 | |
5fa1d40e | 574 | t = get_tracepoint_by_number (&args, NULL); |
7a292a7a | 575 | if (t) |
c906108c | 576 | { |
93921405 TT |
577 | std::string tmpbuf = |
578 | string_printf ("Enter actions for tracepoint %d, one per line.", | |
c1fc2657 | 579 | t->number); |
93921405 | 580 | |
295dc222 TT |
581 | counted_command_line l = read_command_lines (tmpbuf.c_str (), |
582 | from_tty, 1, | |
60b3cef2 TT |
583 | [=] (const char *line) |
584 | { | |
585 | validate_actionline (line, t); | |
586 | }); | |
c1fc2657 | 587 | breakpoint_set_commands (t, std::move (l)); |
c906108c | 588 | } |
5c44784c | 589 | /* else just return */ |
c906108c SS |
590 | } |
591 | ||
fff87407 SS |
592 | /* Report the results of checking the agent expression, as errors or |
593 | internal errors. */ | |
594 | ||
595 | static void | |
35c9c7ba | 596 | report_agent_reqs_errors (struct agent_expr *aexpr) |
fff87407 SS |
597 | { |
598 | /* All of the "flaws" are serious bytecode generation issues that | |
599 | should never occur. */ | |
35c9c7ba | 600 | if (aexpr->flaw != agent_flaw_none) |
fff87407 SS |
601 | internal_error (__FILE__, __LINE__, _("expression is malformed")); |
602 | ||
603 | /* If analysis shows a stack underflow, GDB must have done something | |
604 | badly wrong in its bytecode generation. */ | |
35c9c7ba | 605 | if (aexpr->min_height < 0) |
fff87407 SS |
606 | internal_error (__FILE__, __LINE__, |
607 | _("expression has min height < 0")); | |
608 | ||
609 | /* Issue this error if the stack is predicted to get too deep. The | |
610 | limit is rather arbitrary; a better scheme might be for the | |
611 | target to report how much stack it will have available. The | |
612 | depth roughly corresponds to parenthesization, so a limit of 20 | |
613 | amounts to 20 levels of expression nesting, which is actually | |
614 | a pretty big hairy expression. */ | |
35c9c7ba | 615 | if (aexpr->max_height > 20) |
fff87407 SS |
616 | error (_("Expression is too complicated.")); |
617 | } | |
618 | ||
4277c4b8 PFC |
619 | /* Call ax_reqs on AEXPR and raise an error if something is wrong. */ |
620 | ||
621 | static void | |
622 | finalize_tracepoint_aexpr (struct agent_expr *aexpr) | |
623 | { | |
624 | ax_reqs (aexpr); | |
625 | ||
626 | if (aexpr->len > MAX_AGENT_EXPR_LEN) | |
627 | error (_("Expression is too complicated.")); | |
628 | ||
629 | report_agent_reqs_errors (aexpr); | |
630 | } | |
631 | ||
c906108c | 632 | /* worker function */ |
fff87407 | 633 | void |
6f937416 | 634 | validate_actionline (const char *line, struct breakpoint *b) |
c906108c SS |
635 | { |
636 | struct cmd_list_element *c; | |
6f937416 PA |
637 | const char *tmp_p; |
638 | const char *p; | |
d9b3f62e | 639 | struct tracepoint *t = (struct tracepoint *) b; |
c906108c | 640 | |
c378eb4e | 641 | /* If EOF is typed, *line is NULL. */ |
6f937416 | 642 | if (line == NULL) |
fff87407 | 643 | return; |
15255275 | 644 | |
f1735a53 | 645 | p = skip_spaces (line); |
c906108c | 646 | |
d183932d MS |
647 | /* Symbol lookup etc. */ |
648 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
fff87407 | 649 | return; |
c906108c | 650 | |
c5aa993b | 651 | if (*p == '#') /* comment line */ |
fff87407 | 652 | return; |
c906108c | 653 | |
cf00cd6f | 654 | c = lookup_cmd (&p, cmdlist, "", NULL, -1, 1); |
c906108c | 655 | if (c == 0) |
fff87407 | 656 | error (_("`%s' is not a tracepoint action, or is ambiguous."), p); |
c5aa993b | 657 | |
bbaca940 | 658 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c | 659 | { |
92bc6a20 TT |
660 | int trace_string = 0; |
661 | ||
3065dfb6 | 662 | if (*p == '/') |
92bc6a20 | 663 | p = decode_agent_options (p, &trace_string); |
3065dfb6 | 664 | |
c5aa993b | 665 | do |
c378eb4e MS |
666 | { /* Repeat over a comma-separated list. */ |
667 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 668 | p = skip_spaces (p); |
c906108c | 669 | |
c378eb4e | 670 | if (*p == '$') /* Look for special pseudo-symbols. */ |
c5aa993b | 671 | { |
0fb4aa4b PA |
672 | if (0 == strncasecmp ("reg", p + 1, 3) |
673 | || 0 == strncasecmp ("arg", p + 1, 3) | |
674 | || 0 == strncasecmp ("loc", p + 1, 3) | |
6710bf39 | 675 | || 0 == strncasecmp ("_ret", p + 1, 4) |
0fb4aa4b | 676 | || 0 == strncasecmp ("_sdata", p + 1, 6)) |
c5aa993b JM |
677 | { |
678 | p = strchr (p, ','); | |
679 | continue; | |
680 | } | |
d183932d | 681 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 682 | } |
9355b391 | 683 | tmp_p = p; |
40cb8ca5 | 684 | for (bp_location *loc : t->locations ()) |
c5aa993b | 685 | { |
6f937416 | 686 | p = tmp_p; |
4d01a485 PA |
687 | expression_up exp = parse_exp_1 (&p, loc->address, |
688 | block_for_pc (loc->address), 1); | |
9355b391 | 689 | |
2adab65c | 690 | if (exp->first_opcode () == OP_VAR_VALUE) |
c5aa993b | 691 | { |
413403fc | 692 | symbol *sym; |
1eaebe02 TT |
693 | expr::var_value_operation *vvop |
694 | = (dynamic_cast<expr::var_value_operation *> | |
695 | (exp->op.get ())); | |
696 | sym = vvop->get_symbol (); | |
413403fc TT |
697 | |
698 | if (SYMBOL_CLASS (sym) == LOC_CONST) | |
9355b391 | 699 | { |
12df843f | 700 | error (_("constant `%s' (value %s) " |
3e43a32a | 701 | "will not be collected."), |
413403fc TT |
702 | sym->print_name (), |
703 | plongest (SYMBOL_VALUE (sym))); | |
9355b391 | 704 | } |
413403fc | 705 | else if (SYMBOL_CLASS (sym) == LOC_OPTIMIZED_OUT) |
9355b391 | 706 | { |
3e43a32a MS |
707 | error (_("`%s' is optimized away " |
708 | "and cannot be collected."), | |
413403fc | 709 | sym->print_name ()); |
9355b391 | 710 | } |
c5aa993b | 711 | } |
c906108c | 712 | |
9355b391 SS |
713 | /* We have something to collect, make sure that the expr to |
714 | bytecode translator can handle it and that it's not too | |
715 | long. */ | |
833177a4 PA |
716 | agent_expr_up aexpr = gen_trace_for_expr (loc->address, |
717 | exp.get (), | |
718 | trace_string); | |
c906108c | 719 | |
4277c4b8 | 720 | finalize_tracepoint_aexpr (aexpr.get ()); |
9355b391 | 721 | } |
c5aa993b JM |
722 | } |
723 | while (p && *p++ == ','); | |
c906108c | 724 | } |
fff87407 | 725 | |
6da95a67 SS |
726 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
727 | { | |
6da95a67 | 728 | do |
c378eb4e MS |
729 | { /* Repeat over a comma-separated list. */ |
730 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 731 | p = skip_spaces (p); |
6da95a67 | 732 | |
9355b391 | 733 | tmp_p = p; |
40cb8ca5 | 734 | for (bp_location *loc : t->locations ()) |
9355b391 | 735 | { |
6f937416 | 736 | p = tmp_p; |
bbc13ae3 | 737 | |
9355b391 | 738 | /* Only expressions are allowed for this action. */ |
4d01a485 PA |
739 | expression_up exp = parse_exp_1 (&p, loc->address, |
740 | block_for_pc (loc->address), 1); | |
6da95a67 | 741 | |
9355b391 SS |
742 | /* We have something to evaluate, make sure that the expr to |
743 | bytecode translator can handle it and that it's not too | |
744 | long. */ | |
833177a4 | 745 | agent_expr_up aexpr = gen_eval_for_expr (loc->address, exp.get ()); |
6da95a67 | 746 | |
4277c4b8 | 747 | finalize_tracepoint_aexpr (aexpr.get ()); |
9355b391 | 748 | } |
6da95a67 SS |
749 | } |
750 | while (p && *p++ == ','); | |
6da95a67 | 751 | } |
fff87407 | 752 | |
bbaca940 | 753 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 754 | { |
6f937416 | 755 | char *endp; |
c906108c | 756 | |
f1735a53 | 757 | p = skip_spaces (p); |
6f937416 PA |
758 | t->step_count = strtol (p, &endp, 0); |
759 | if (endp == p || t->step_count == 0) | |
760 | error (_("while-stepping step count `%s' is malformed."), line); | |
761 | p = endp; | |
c906108c | 762 | } |
fff87407 | 763 | |
bbaca940 | 764 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
fff87407 SS |
765 | ; |
766 | ||
c906108c | 767 | else |
6f937416 | 768 | error (_("`%s' is not a supported tracepoint action."), line); |
74b7792f AC |
769 | } |
770 | ||
f50e79a4 JB |
771 | enum { |
772 | memrange_absolute = -1 | |
773 | }; | |
774 | ||
c906108c SS |
775 | /* MEMRANGE functions: */ |
776 | ||
1f45808e | 777 | /* Compare memranges for std::sort. */ |
c906108c | 778 | |
1f45808e PA |
779 | static bool |
780 | memrange_comp (const memrange &a, const memrange &b) | |
c906108c | 781 | { |
1f45808e | 782 | if (a.type == b.type) |
c906108c | 783 | { |
1f45808e PA |
784 | if (a.type == memrange_absolute) |
785 | return (bfd_vma) a.start < (bfd_vma) b.start; | |
786 | else | |
787 | return a.start < b.start; | |
c906108c | 788 | } |
1f45808e PA |
789 | |
790 | return a.type < b.type; | |
c906108c SS |
791 | } |
792 | ||
1f45808e PA |
793 | /* Sort the memrange list using std::sort, and merge adjacent memranges. */ |
794 | ||
c906108c | 795 | static void |
1f45808e | 796 | memrange_sortmerge (std::vector<memrange> &memranges) |
c906108c | 797 | { |
1f45808e | 798 | if (!memranges.empty ()) |
c906108c | 799 | { |
1f45808e PA |
800 | int a, b; |
801 | ||
802 | std::sort (memranges.begin (), memranges.end (), memrange_comp); | |
803 | ||
804 | for (a = 0, b = 1; b < memranges.size (); b++) | |
c906108c | 805 | { |
1b28d0b3 PA |
806 | /* If memrange b overlaps or is adjacent to memrange a, |
807 | merge them. */ | |
1f45808e PA |
808 | if (memranges[a].type == memranges[b].type |
809 | && memranges[b].start <= memranges[a].end) | |
c906108c | 810 | { |
1f45808e PA |
811 | if (memranges[b].end > memranges[a].end) |
812 | memranges[a].end = memranges[b].end; | |
c906108c SS |
813 | continue; /* next b, same a */ |
814 | } | |
815 | a++; /* next a */ | |
816 | if (a != b) | |
1f45808e | 817 | memranges[a] = memranges[b]; |
c906108c | 818 | } |
1f45808e | 819 | memranges.resize (a + 1); |
c906108c SS |
820 | } |
821 | } | |
822 | ||
4277c4b8 | 823 | /* Add remote register number REGNO to the collection list mask. */ |
1f45808e PA |
824 | |
825 | void | |
4277c4b8 | 826 | collection_list::add_remote_register (unsigned int regno) |
c906108c SS |
827 | { |
828 | if (info_verbose) | |
829 | printf_filtered ("collect register %d\n", regno); | |
a04b9d62 PFC |
830 | |
831 | m_regs_mask.at (regno / 8) |= 1 << (regno % 8); | |
c906108c SS |
832 | } |
833 | ||
4277c4b8 PFC |
834 | /* Add all the registers from the mask in AEXPR to the mask in the |
835 | collection list. Registers in the AEXPR mask are already remote | |
836 | register numbers. */ | |
837 | ||
838 | void | |
839 | collection_list::add_ax_registers (struct agent_expr *aexpr) | |
840 | { | |
841 | if (aexpr->reg_mask_len > 0) | |
842 | { | |
843 | for (int ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++) | |
844 | { | |
845 | QUIT; /* Allow user to bail out with ^C. */ | |
846 | if (aexpr->reg_mask[ndx1] != 0) | |
847 | { | |
848 | /* Assume chars have 8 bits. */ | |
849 | for (int ndx2 = 0; ndx2 < 8; ndx2++) | |
850 | if (aexpr->reg_mask[ndx1] & (1 << ndx2)) | |
851 | /* It's used -- record it. */ | |
852 | add_remote_register (ndx1 * 8 + ndx2); | |
853 | } | |
854 | } | |
855 | } | |
856 | } | |
857 | ||
858 | /* If REGNO is raw, add its corresponding remote register number to | |
859 | the mask. If REGNO is a pseudo-register, figure out the necessary | |
860 | registers using a temporary agent expression, and add it to the | |
861 | list if it needs more than just a mask. */ | |
862 | ||
863 | void | |
864 | collection_list::add_local_register (struct gdbarch *gdbarch, | |
865 | unsigned int regno, | |
866 | CORE_ADDR scope) | |
867 | { | |
868 | if (regno < gdbarch_num_regs (gdbarch)) | |
869 | { | |
870 | int remote_regno = gdbarch_remote_register_number (gdbarch, regno); | |
871 | ||
872 | if (remote_regno < 0) | |
873 | error (_("Can't collect register %d"), regno); | |
874 | ||
875 | add_remote_register (remote_regno); | |
876 | } | |
877 | else | |
878 | { | |
879 | agent_expr_up aexpr (new agent_expr (gdbarch, scope)); | |
880 | ||
881 | ax_reg_mask (aexpr.get (), regno); | |
882 | ||
883 | finalize_tracepoint_aexpr (aexpr.get ()); | |
884 | ||
885 | add_ax_registers (aexpr.get ()); | |
886 | ||
887 | /* Usually ax_reg_mask for a pseudo-regiser only sets the | |
888 | corresponding raw registers in the ax mask, but if this isn't | |
889 | the case add the expression that is generated to the | |
890 | collection list. */ | |
891 | if (aexpr->len > 0) | |
892 | add_aexpr (std::move (aexpr)); | |
893 | } | |
894 | } | |
895 | ||
c378eb4e | 896 | /* Add a memrange to a collection list. */ |
1f45808e PA |
897 | |
898 | void | |
19f1935d PA |
899 | collection_list::add_memrange (struct gdbarch *gdbarch, |
900 | int type, bfd_signed_vma base, | |
4277c4b8 | 901 | unsigned long len, CORE_ADDR scope) |
c906108c SS |
902 | { |
903 | if (info_verbose) | |
19f1935d | 904 | printf_filtered ("(%d,%s,%ld)\n", type, paddress (gdbarch, base), len); |
104c1213 | 905 | |
f50e79a4 | 906 | /* type: memrange_absolute == memory, other n == basereg */ |
d183932d | 907 | /* base: addr if memory, offset if reg relative. */ |
c906108c | 908 | /* len: we actually save end (base + len) for convenience */ |
7a63494a | 909 | m_memranges.emplace_back (type, base, base + len); |
c906108c | 910 | |
3e43a32a | 911 | if (type != memrange_absolute) /* Better collect the base register! */ |
4277c4b8 | 912 | add_local_register (gdbarch, type, scope); |
c906108c SS |
913 | } |
914 | ||
d183932d | 915 | /* Add a symbol to a collection list. */ |
1f45808e PA |
916 | |
917 | void | |
918 | collection_list::collect_symbol (struct symbol *sym, | |
919 | struct gdbarch *gdbarch, | |
920 | long frame_regno, long frame_offset, | |
921 | CORE_ADDR scope, | |
922 | int trace_string) | |
c906108c | 923 | { |
c5aa993b | 924 | unsigned long len; |
104c1213 | 925 | unsigned int reg; |
c906108c | 926 | bfd_signed_vma offset; |
400c6af0 | 927 | int treat_as_expr = 0; |
c906108c | 928 | |
c5aa993b JM |
929 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
930 | switch (SYMBOL_CLASS (sym)) | |
931 | { | |
932 | default: | |
933 | printf_filtered ("%s: don't know symbol class %d\n", | |
987012b8 | 934 | sym->print_name (), SYMBOL_CLASS (sym)); |
c5aa993b JM |
935 | break; |
936 | case LOC_CONST: | |
12df843f | 937 | printf_filtered ("constant %s (value %s) will not be collected.\n", |
987012b8 | 938 | sym->print_name (), plongest (SYMBOL_VALUE (sym))); |
c5aa993b JM |
939 | break; |
940 | case LOC_STATIC: | |
941 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
942 | if (info_verbose) | |
104c1213 | 943 | { |
104c1213 | 944 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", |
987012b8 | 945 | sym->print_name (), len, |
19f1935d | 946 | paddress (gdbarch, offset)); |
104c1213 | 947 | } |
400c6af0 SS |
948 | /* A struct may be a C++ class with static fields, go to general |
949 | expression handling. */ | |
78134374 | 950 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_STRUCT) |
400c6af0 SS |
951 | treat_as_expr = 1; |
952 | else | |
4277c4b8 | 953 | add_memrange (gdbarch, memrange_absolute, offset, len, scope); |
c5aa993b JM |
954 | break; |
955 | case LOC_REGISTER: | |
a6d9a66e | 956 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 957 | if (info_verbose) |
987012b8 | 958 | printf_filtered ("LOC_REG[parm] %s: ", sym->print_name ()); |
4277c4b8 | 959 | add_local_register (gdbarch, reg, scope); |
d183932d MS |
960 | /* Check for doubles stored in two registers. */ |
961 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
78134374 | 962 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_FLT && |
a6d9a66e | 963 | len > register_size (gdbarch, reg)) |
4277c4b8 | 964 | add_local_register (gdbarch, reg + 1, scope); |
c5aa993b JM |
965 | break; |
966 | case LOC_REF_ARG: | |
967 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
987012b8 | 968 | printf_filtered (" (will not collect %s)\n", sym->print_name ()); |
c5aa993b JM |
969 | break; |
970 | case LOC_ARG: | |
971 | reg = frame_regno; | |
972 | offset = frame_offset + SYMBOL_VALUE (sym); | |
973 | if (info_verbose) | |
974 | { | |
19f1935d | 975 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s" |
987012b8 | 976 | " from frame ptr reg %d\n", sym->print_name (), len, |
19f1935d | 977 | paddress (gdbarch, offset), reg); |
c5aa993b | 978 | } |
4277c4b8 | 979 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b JM |
980 | break; |
981 | case LOC_REGPARM_ADDR: | |
982 | reg = SYMBOL_VALUE (sym); | |
983 | offset = 0; | |
984 | if (info_verbose) | |
985 | { | |
19f1935d | 986 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset %s" |
987012b8 | 987 | " from reg %d\n", sym->print_name (), len, |
19f1935d | 988 | paddress (gdbarch, offset), reg); |
c5aa993b | 989 | } |
4277c4b8 | 990 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b JM |
991 | break; |
992 | case LOC_LOCAL: | |
c5aa993b JM |
993 | reg = frame_regno; |
994 | offset = frame_offset + SYMBOL_VALUE (sym); | |
995 | if (info_verbose) | |
996 | { | |
19f1935d | 997 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s" |
987012b8 | 998 | " from frame ptr reg %d\n", sym->print_name (), len, |
19f1935d | 999 | paddress (gdbarch, offset), reg); |
c5aa993b | 1000 | } |
4277c4b8 | 1001 | add_memrange (gdbarch, reg, offset, len, scope); |
c5aa993b | 1002 | break; |
a0405854 | 1003 | |
c5aa993b | 1004 | case LOC_UNRESOLVED: |
a0405854 | 1005 | treat_as_expr = 1; |
c5aa993b | 1006 | break; |
a0405854 | 1007 | |
c5aa993b | 1008 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 1009 | printf_filtered ("%s has been optimized out of existence.\n", |
987012b8 | 1010 | sym->print_name ()); |
c5aa993b | 1011 | break; |
0936ad1d SS |
1012 | |
1013 | case LOC_COMPUTED: | |
400c6af0 | 1014 | treat_as_expr = 1; |
0936ad1d | 1015 | break; |
c5aa993b | 1016 | } |
400c6af0 SS |
1017 | |
1018 | /* Expressions are the most general case. */ | |
1019 | if (treat_as_expr) | |
1020 | { | |
833177a4 PA |
1021 | agent_expr_up aexpr = gen_trace_for_var (scope, gdbarch, |
1022 | sym, trace_string); | |
400c6af0 SS |
1023 | |
1024 | /* It can happen that the symbol is recorded as a computed | |
1025 | location, but it's been optimized away and doesn't actually | |
1026 | have a location expression. */ | |
1027 | if (!aexpr) | |
1028 | { | |
1029 | printf_filtered ("%s has been optimized out of existence.\n", | |
987012b8 | 1030 | sym->print_name ()); |
400c6af0 SS |
1031 | return; |
1032 | } | |
1033 | ||
4277c4b8 | 1034 | finalize_tracepoint_aexpr (aexpr.get ()); |
400c6af0 | 1035 | |
c378eb4e | 1036 | /* Take care of the registers. */ |
4277c4b8 | 1037 | add_ax_registers (aexpr.get ()); |
833177a4 | 1038 | |
6c73cd95 | 1039 | add_aexpr (std::move (aexpr)); |
400c6af0 | 1040 | } |
c906108c SS |
1041 | } |
1042 | ||
2c58c0a9 PA |
1043 | /* Data to be passed around in the calls to the locals and args |
1044 | iterators. */ | |
1045 | ||
1046 | struct add_local_symbols_data | |
1047 | { | |
1048 | struct collection_list *collect; | |
1049 | struct gdbarch *gdbarch; | |
1050 | CORE_ADDR pc; | |
1051 | long frame_regno; | |
1052 | long frame_offset; | |
1053 | int count; | |
92bc6a20 | 1054 | int trace_string; |
2c58c0a9 PA |
1055 | }; |
1056 | ||
c378eb4e | 1057 | /* The callback for the locals and args iterators. */ |
2c58c0a9 PA |
1058 | |
1059 | static void | |
1060 | do_collect_symbol (const char *print_name, | |
1061 | struct symbol *sym, | |
1062 | void *cb_data) | |
1063 | { | |
19ba03f4 | 1064 | struct add_local_symbols_data *p = (struct add_local_symbols_data *) cb_data; |
2c58c0a9 | 1065 | |
1f45808e PA |
1066 | p->collect->collect_symbol (sym, p->gdbarch, p->frame_regno, |
1067 | p->frame_offset, p->pc, p->trace_string); | |
2c58c0a9 | 1068 | p->count++; |
dc673c81 | 1069 | |
1f45808e PA |
1070 | p->collect->add_wholly_collected (print_name); |
1071 | } | |
1072 | ||
1073 | void | |
1074 | collection_list::add_wholly_collected (const char *print_name) | |
1075 | { | |
1076 | m_wholly_collected.push_back (print_name); | |
2c58c0a9 PA |
1077 | } |
1078 | ||
c378eb4e | 1079 | /* Add all locals (or args) symbols to collection list. */ |
1f45808e PA |
1080 | |
1081 | void | |
1082 | collection_list::add_local_symbols (struct gdbarch *gdbarch, CORE_ADDR pc, | |
1083 | long frame_regno, long frame_offset, int type, | |
1084 | int trace_string) | |
c906108c | 1085 | { |
3977b71f | 1086 | const struct block *block; |
2c58c0a9 PA |
1087 | struct add_local_symbols_data cb_data; |
1088 | ||
1f45808e | 1089 | cb_data.collect = this; |
2c58c0a9 PA |
1090 | cb_data.gdbarch = gdbarch; |
1091 | cb_data.pc = pc; | |
1092 | cb_data.frame_regno = frame_regno; | |
1093 | cb_data.frame_offset = frame_offset; | |
1094 | cb_data.count = 0; | |
92bc6a20 | 1095 | cb_data.trace_string = trace_string; |
c906108c | 1096 | |
2c58c0a9 | 1097 | if (type == 'L') |
c906108c | 1098 | { |
2c58c0a9 PA |
1099 | block = block_for_pc (pc); |
1100 | if (block == NULL) | |
c906108c | 1101 | { |
2c58c0a9 PA |
1102 | warning (_("Can't collect locals; " |
1103 | "no symbol table info available.\n")); | |
1104 | return; | |
c906108c | 1105 | } |
2c58c0a9 PA |
1106 | |
1107 | iterate_over_block_local_vars (block, do_collect_symbol, &cb_data); | |
1108 | if (cb_data.count == 0) | |
1109 | warning (_("No locals found in scope.")); | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | pc = get_pc_function_start (pc); | |
1114 | block = block_for_pc (pc); | |
1115 | if (block == NULL) | |
1116 | { | |
b37520b6 | 1117 | warning (_("Can't collect args; no symbol table info available.")); |
2c58c0a9 PA |
1118 | return; |
1119 | } | |
1120 | ||
1121 | iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data); | |
1122 | if (cb_data.count == 0) | |
1123 | warning (_("No args found in scope.")); | |
c906108c | 1124 | } |
c906108c SS |
1125 | } |
1126 | ||
1f45808e PA |
1127 | void |
1128 | collection_list::add_static_trace_data () | |
0fb4aa4b PA |
1129 | { |
1130 | if (info_verbose) | |
1131 | printf_filtered ("collect static trace data\n"); | |
1f45808e | 1132 | m_strace_data = true; |
cbfa3b61 YQ |
1133 | } |
1134 | ||
1f45808e | 1135 | collection_list::collection_list () |
a04b9d62 | 1136 | : m_strace_data (false) |
cbfa3b61 | 1137 | { |
a04b9d62 PFC |
1138 | int max_remote_regno = 0; |
1139 | for (int i = 0; i < gdbarch_num_regs (target_gdbarch ()); i++) | |
1140 | { | |
1141 | int remote_regno = (gdbarch_remote_register_number | |
1142 | (target_gdbarch (), i)); | |
1143 | ||
1144 | if (remote_regno >= 0 && remote_regno > max_remote_regno) | |
1145 | max_remote_regno = remote_regno; | |
1146 | } | |
1147 | ||
1148 | m_regs_mask.resize ((max_remote_regno / 8) + 1); | |
1149 | ||
1f45808e PA |
1150 | m_memranges.reserve (128); |
1151 | m_aexprs.reserve (128); | |
cbfa3b61 YQ |
1152 | } |
1153 | ||
c378eb4e | 1154 | /* Reduce a collection list to string form (for gdb protocol). */ |
1f45808e | 1155 | |
b44ec619 | 1156 | std::vector<std::string> |
1f45808e | 1157 | collection_list::stringify () |
c906108c | 1158 | { |
a04b9d62 PFC |
1159 | gdb::char_vector temp_buf (2048); |
1160 | ||
c906108c | 1161 | int count; |
c906108c | 1162 | char *end; |
c5aa993b | 1163 | long i; |
b44ec619 | 1164 | std::vector<std::string> str_list; |
c906108c | 1165 | |
1f45808e | 1166 | if (m_strace_data) |
0fb4aa4b PA |
1167 | { |
1168 | if (info_verbose) | |
1169 | printf_filtered ("\nCollecting static trace data\n"); | |
a04b9d62 | 1170 | end = temp_buf.data (); |
0fb4aa4b | 1171 | *end++ = 'L'; |
a04b9d62 | 1172 | str_list.emplace_back (temp_buf.data (), end - temp_buf.data ()); |
0fb4aa4b PA |
1173 | } |
1174 | ||
a04b9d62 | 1175 | for (i = m_regs_mask.size () - 1; i > 0; i--) |
1f45808e | 1176 | if (m_regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */ |
c906108c | 1177 | break; |
1f45808e | 1178 | if (m_regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */ |
c906108c SS |
1179 | { |
1180 | if (info_verbose) | |
1181 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
a04b9d62 PFC |
1182 | |
1183 | /* One char for 'R', one for the null terminator and two per | |
1184 | mask byte. */ | |
1185 | std::size_t new_size = (i + 1) * 2 + 2; | |
1186 | if (new_size > temp_buf.size ()) | |
1187 | temp_buf.resize (new_size); | |
1188 | ||
1189 | end = temp_buf.data (); | |
c5aa993b | 1190 | *end++ = 'R'; |
c906108c SS |
1191 | for (; i >= 0; i--) |
1192 | { | |
c378eb4e | 1193 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c | 1194 | if (info_verbose) |
1f45808e | 1195 | printf_filtered ("%02X", m_regs_mask[i]); |
a04b9d62 PFC |
1196 | |
1197 | end = pack_hex_byte (end, m_regs_mask[i]); | |
c906108c | 1198 | } |
a04b9d62 PFC |
1199 | *end = '\0'; |
1200 | ||
1201 | str_list.emplace_back (temp_buf.data ()); | |
c906108c SS |
1202 | } |
1203 | if (info_verbose) | |
1204 | printf_filtered ("\n"); | |
1f45808e | 1205 | if (!m_memranges.empty () && info_verbose) |
c906108c | 1206 | printf_filtered ("Collecting memranges: \n"); |
a04b9d62 PFC |
1207 | for (i = 0, count = 0, end = temp_buf.data (); |
1208 | i < m_memranges.size (); i++) | |
c906108c | 1209 | { |
c378eb4e | 1210 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c | 1211 | if (info_verbose) |
104c1213 JM |
1212 | { |
1213 | printf_filtered ("(%d, %s, %ld)\n", | |
1f45808e | 1214 | m_memranges[i].type, |
19f1935d PA |
1215 | paddress (target_gdbarch (), |
1216 | m_memranges[i].start), | |
1f45808e PA |
1217 | (long) (m_memranges[i].end |
1218 | - m_memranges[i].start)); | |
104c1213 | 1219 | } |
c906108c SS |
1220 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1221 | { | |
a04b9d62 | 1222 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1223 | count = 0; |
a04b9d62 | 1224 | end = temp_buf.data (); |
c906108c | 1225 | } |
104c1213 | 1226 | |
d1948716 | 1227 | { |
dda83cd7 | 1228 | bfd_signed_vma length |
1f45808e | 1229 | = m_memranges[i].end - m_memranges[i].start; |
d1948716 | 1230 | |
dda83cd7 SM |
1231 | /* The "%X" conversion specifier expects an unsigned argument, |
1232 | so passing -1 (memrange_absolute) to it directly gives you | |
1233 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1234 | Special-case it. */ | |
1235 | if (m_memranges[i].type == memrange_absolute) | |
1236 | sprintf (end, "M-1,%s,%lX", phex_nz (m_memranges[i].start, 0), | |
19f1935d | 1237 | (long) length); |
dda83cd7 SM |
1238 | else |
1239 | sprintf (end, "M%X,%s,%lX", m_memranges[i].type, | |
19f1935d | 1240 | phex_nz (m_memranges[i].start, 0), (long) length); |
d1948716 | 1241 | } |
104c1213 | 1242 | |
c906108c | 1243 | count += strlen (end); |
a04b9d62 | 1244 | end = temp_buf.data () + count; |
c906108c SS |
1245 | } |
1246 | ||
1f45808e | 1247 | for (i = 0; i < m_aexprs.size (); i++) |
c906108c | 1248 | { |
c378eb4e | 1249 | QUIT; /* Allow user to bail out with ^C. */ |
1f45808e | 1250 | if ((count + 10 + 2 * m_aexprs[i]->len) > MAX_AGENT_EXPR_LEN) |
c906108c | 1251 | { |
a04b9d62 | 1252 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1253 | count = 0; |
a04b9d62 | 1254 | end = temp_buf.data (); |
c906108c | 1255 | } |
1f45808e | 1256 | sprintf (end, "X%08X,", m_aexprs[i]->len); |
c906108c SS |
1257 | end += 10; /* 'X' + 8 hex digits + ',' */ |
1258 | count += 10; | |
1259 | ||
1f45808e PA |
1260 | end = mem2hex (m_aexprs[i]->buf, end, m_aexprs[i]->len); |
1261 | count += 2 * m_aexprs[i]->len; | |
c906108c SS |
1262 | } |
1263 | ||
1264 | if (count != 0) | |
1265 | { | |
a04b9d62 | 1266 | str_list.emplace_back (temp_buf.data (), count); |
c906108c | 1267 | count = 0; |
a04b9d62 | 1268 | end = temp_buf.data (); |
c906108c | 1269 | } |
c906108c | 1270 | |
b44ec619 | 1271 | return str_list; |
c906108c SS |
1272 | } |
1273 | ||
bc167b6b | 1274 | /* Add the expression STR to M_COMPUTED. */ |
dc673c81 | 1275 | |
1f45808e | 1276 | void |
bc167b6b | 1277 | collection_list::append_exp (std::string &&str) |
dc673c81 | 1278 | { |
bc167b6b | 1279 | m_computed.push_back (std::move (str)); |
dc673c81 | 1280 | } |
a7bdde9e | 1281 | |
1f45808e PA |
1282 | void |
1283 | collection_list::finish () | |
1284 | { | |
1285 | memrange_sortmerge (m_memranges); | |
1286 | } | |
1287 | ||
a7bdde9e VP |
1288 | static void |
1289 | encode_actions_1 (struct command_line *action, | |
a7bdde9e VP |
1290 | struct bp_location *tloc, |
1291 | int frame_reg, | |
1292 | LONGEST frame_offset, | |
1293 | struct collection_list *collect, | |
1294 | struct collection_list *stepping_list) | |
c906108c | 1295 | { |
6f937416 | 1296 | const char *action_exp; |
104c1213 | 1297 | int i; |
f976f6d4 | 1298 | struct value *tempval; |
c906108c | 1299 | struct cmd_list_element *cmd; |
236f1d4d SS |
1300 | |
1301 | for (; action; action = action->next) | |
c906108c | 1302 | { |
c378eb4e | 1303 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 1304 | action_exp = action->line; |
f1735a53 | 1305 | action_exp = skip_spaces (action_exp); |
c906108c | 1306 | |
cf00cd6f | 1307 | cmd = lookup_cmd (&action_exp, cmdlist, "", NULL, -1, 1); |
c906108c | 1308 | if (cmd == 0) |
8a3fe4f8 | 1309 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1310 | |
bbaca940 | 1311 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1312 | { |
92bc6a20 TT |
1313 | int trace_string = 0; |
1314 | ||
3065dfb6 | 1315 | if (*action_exp == '/') |
92bc6a20 | 1316 | action_exp = decode_agent_options (action_exp, &trace_string); |
3065dfb6 | 1317 | |
c5aa993b | 1318 | do |
c378eb4e MS |
1319 | { /* Repeat over a comma-separated list. */ |
1320 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 1321 | action_exp = skip_spaces (action_exp); |
c906108c | 1322 | |
c5aa993b JM |
1323 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1324 | { | |
4277c4b8 PFC |
1325 | for (i = 0; i < gdbarch_num_regs (target_gdbarch ()); |
1326 | i++) | |
1327 | { | |
1328 | int remote_regno = (gdbarch_remote_register_number | |
1329 | (target_gdbarch (), i)); | |
1330 | ||
1331 | /* Ignore arch regnos without a corresponding | |
1332 | remote regno. This can happen for regnos not | |
1333 | in the tdesc. */ | |
1334 | if (remote_regno >= 0) | |
1335 | collect->add_remote_register (remote_regno); | |
1336 | } | |
c5aa993b JM |
1337 | action_exp = strchr (action_exp, ','); /* more? */ |
1338 | } | |
1339 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1340 | { | |
1f45808e PA |
1341 | collect->add_local_symbols (target_gdbarch (), |
1342 | tloc->address, | |
1343 | frame_reg, | |
1344 | frame_offset, | |
1345 | 'A', | |
1346 | trace_string); | |
c5aa993b JM |
1347 | action_exp = strchr (action_exp, ','); /* more? */ |
1348 | } | |
1349 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1350 | { | |
1f45808e PA |
1351 | collect->add_local_symbols (target_gdbarch (), |
1352 | tloc->address, | |
1353 | frame_reg, | |
1354 | frame_offset, | |
1355 | 'L', | |
1356 | trace_string); | |
c5aa993b JM |
1357 | action_exp = strchr (action_exp, ','); /* more? */ |
1358 | } | |
6710bf39 SS |
1359 | else if (0 == strncasecmp ("$_ret", action_exp, 5)) |
1360 | { | |
833177a4 PA |
1361 | agent_expr_up aexpr |
1362 | = gen_trace_for_return_address (tloc->address, | |
1363 | target_gdbarch (), | |
1364 | trace_string); | |
6710bf39 | 1365 | |
4277c4b8 | 1366 | finalize_tracepoint_aexpr (aexpr.get ()); |
6710bf39 SS |
1367 | |
1368 | /* take care of the registers */ | |
4277c4b8 | 1369 | collect->add_ax_registers (aexpr.get ()); |
6710bf39 | 1370 | |
6c73cd95 | 1371 | collect->add_aexpr (std::move (aexpr)); |
6710bf39 SS |
1372 | action_exp = strchr (action_exp, ','); /* more? */ |
1373 | } | |
0fb4aa4b PA |
1374 | else if (0 == strncasecmp ("$_sdata", action_exp, 7)) |
1375 | { | |
1f45808e | 1376 | collect->add_static_trace_data (); |
0fb4aa4b PA |
1377 | action_exp = strchr (action_exp, ','); /* more? */ |
1378 | } | |
c5aa993b JM |
1379 | else |
1380 | { | |
744a8059 | 1381 | unsigned long addr; |
c5aa993b | 1382 | |
bc167b6b | 1383 | const char *exp_start = action_exp; |
4d01a485 PA |
1384 | expression_up exp = parse_exp_1 (&action_exp, tloc->address, |
1385 | block_for_pc (tloc->address), | |
1386 | 1); | |
c906108c | 1387 | |
2adab65c | 1388 | switch (exp->first_opcode ()) |
c5aa993b JM |
1389 | { |
1390 | case OP_REGISTER: | |
67f3407f | 1391 | { |
1eaebe02 TT |
1392 | expr::register_operation *regop |
1393 | = (dynamic_cast<expr::register_operation *> | |
1394 | (exp->op.get ())); | |
1395 | const char *name = regop->get_name (); | |
67f3407f | 1396 | |
82e9becd | 1397 | i = user_reg_map_name_to_regnum (target_gdbarch (), |
029a67e4 | 1398 | name, strlen (name)); |
67f3407f DJ |
1399 | if (i == -1) |
1400 | internal_error (__FILE__, __LINE__, | |
1401 | _("Register $%s not available"), | |
1402 | name); | |
1403 | if (info_verbose) | |
1404 | printf_filtered ("OP_REGISTER: "); | |
4277c4b8 PFC |
1405 | collect->add_local_register (target_gdbarch (), |
1406 | i, tloc->address); | |
67f3407f DJ |
1407 | break; |
1408 | } | |
c5aa993b JM |
1409 | |
1410 | case UNOP_MEMVAL: | |
413403fc TT |
1411 | { |
1412 | /* Safe because we know it's a simple expression. */ | |
1413 | tempval = evaluate_expression (exp.get ()); | |
1414 | addr = value_address (tempval); | |
1eaebe02 TT |
1415 | expr::unop_memval_operation *memop |
1416 | = (dynamic_cast<expr::unop_memval_operation *> | |
1417 | (exp->op.get ())); | |
1418 | struct type *type = memop->get_type (); | |
413403fc TT |
1419 | /* Initialize the TYPE_LENGTH if it is a typedef. */ |
1420 | check_typedef (type); | |
1421 | collect->add_memrange (target_gdbarch (), | |
1422 | memrange_absolute, addr, | |
1423 | TYPE_LENGTH (type), | |
1424 | tloc->address); | |
1425 | collect->append_exp (std::string (exp_start, | |
1426 | action_exp)); | |
1427 | } | |
c5aa993b JM |
1428 | break; |
1429 | ||
1430 | case OP_VAR_VALUE: | |
dc673c81 | 1431 | { |
1eaebe02 TT |
1432 | expr::var_value_operation *vvo |
1433 | = (dynamic_cast<expr::var_value_operation *> | |
1434 | (exp->op.get ())); | |
1435 | struct symbol *sym = vvo->get_symbol (); | |
987012b8 | 1436 | const char *name = sym->natural_name (); |
dc673c81 | 1437 | |
413403fc | 1438 | collect->collect_symbol (sym, |
1f45808e PA |
1439 | target_gdbarch (), |
1440 | frame_reg, | |
1441 | frame_offset, | |
1442 | tloc->address, | |
1443 | trace_string); | |
1444 | collect->add_wholly_collected (name); | |
dc673c81 | 1445 | } |
c5aa993b JM |
1446 | break; |
1447 | ||
c378eb4e | 1448 | default: /* Full-fledged expression. */ |
833177a4 PA |
1449 | agent_expr_up aexpr = gen_trace_for_expr (tloc->address, |
1450 | exp.get (), | |
1451 | trace_string); | |
c5aa993b | 1452 | |
4277c4b8 | 1453 | finalize_tracepoint_aexpr (aexpr.get ()); |
c5aa993b | 1454 | |
c378eb4e | 1455 | /* Take care of the registers. */ |
4277c4b8 | 1456 | collect->add_ax_registers (aexpr.get ()); |
dc673c81 | 1457 | |
6c73cd95 | 1458 | collect->add_aexpr (std::move (aexpr)); |
bc167b6b TT |
1459 | collect->append_exp (std::string (exp_start, |
1460 | action_exp)); | |
c5aa993b JM |
1461 | break; |
1462 | } /* switch */ | |
c5aa993b JM |
1463 | } /* do */ |
1464 | } | |
1465 | while (action_exp && *action_exp++ == ','); | |
1466 | } /* if */ | |
6da95a67 SS |
1467 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1468 | { | |
1469 | do | |
c378eb4e MS |
1470 | { /* Repeat over a comma-separated list. */ |
1471 | QUIT; /* Allow user to bail out with ^C. */ | |
f1735a53 | 1472 | action_exp = skip_spaces (action_exp); |
6da95a67 SS |
1473 | |
1474 | { | |
4d01a485 PA |
1475 | expression_up exp = parse_exp_1 (&action_exp, tloc->address, |
1476 | block_for_pc (tloc->address), | |
1477 | 1); | |
6da95a67 | 1478 | |
833177a4 PA |
1479 | agent_expr_up aexpr = gen_eval_for_expr (tloc->address, |
1480 | exp.get ()); | |
6da95a67 | 1481 | |
4277c4b8 | 1482 | finalize_tracepoint_aexpr (aexpr.get ()); |
6da95a67 | 1483 | |
6da95a67 SS |
1484 | /* Even though we're not officially collecting, add |
1485 | to the collect list anyway. */ | |
6c73cd95 | 1486 | collect->add_aexpr (std::move (aexpr)); |
6da95a67 SS |
1487 | } /* do */ |
1488 | } | |
1489 | while (action_exp && *action_exp++ == ','); | |
1490 | } /* if */ | |
bbaca940 | 1491 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1492 | { |
a7bdde9e VP |
1493 | /* We check against nested while-stepping when setting |
1494 | breakpoint action, so no way to run into nested | |
1495 | here. */ | |
1496 | gdb_assert (stepping_list); | |
1497 | ||
12973681 | 1498 | encode_actions_1 (action->body_list_0.get (), tloc, frame_reg, |
2a2287c7 | 1499 | frame_offset, stepping_list, NULL); |
c906108c | 1500 | } |
a7bdde9e VP |
1501 | else |
1502 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1503 | } /* for */ | |
1504 | } | |
1505 | ||
dc673c81 | 1506 | /* Encode actions of tracepoint TLOC->owner and fill TRACEPOINT_LIST |
1f45808e | 1507 | and STEPPING_LIST. */ |
5fbce5df | 1508 | |
1f45808e PA |
1509 | void |
1510 | encode_actions (struct bp_location *tloc, | |
1511 | struct collection_list *tracepoint_list, | |
1512 | struct collection_list *stepping_list) | |
a7bdde9e | 1513 | { |
a7bdde9e VP |
1514 | int frame_reg; |
1515 | LONGEST frame_offset; | |
cbfa3b61 | 1516 | |
3e05895e TT |
1517 | gdbarch_virtual_frame_pointer (tloc->gdbarch, |
1518 | tloc->address, &frame_reg, &frame_offset); | |
a7bdde9e | 1519 | |
12973681 TT |
1520 | counted_command_line actions = all_tracepoint_actions (tloc->owner); |
1521 | encode_actions_1 (actions.get (), tloc, frame_reg, frame_offset, | |
dc673c81 | 1522 | tracepoint_list, stepping_list); |
12973681 TT |
1523 | encode_actions_1 (breakpoint_commands (tloc->owner), tloc, |
1524 | frame_reg, frame_offset, tracepoint_list, stepping_list); | |
dc673c81 | 1525 | |
1f45808e PA |
1526 | tracepoint_list->finish (); |
1527 | stepping_list->finish (); | |
dc673c81 YQ |
1528 | } |
1529 | ||
1530 | /* Render all actions into gdb protocol. */ | |
1531 | ||
1532 | void | |
b44ec619 SM |
1533 | encode_actions_rsp (struct bp_location *tloc, |
1534 | std::vector<std::string> *tdp_actions, | |
1535 | std::vector<std::string> *stepping_actions) | |
dc673c81 YQ |
1536 | { |
1537 | struct collection_list tracepoint_list, stepping_list; | |
a7bdde9e | 1538 | |
1f45808e | 1539 | encode_actions (tloc, &tracepoint_list, &stepping_list); |
236f1d4d | 1540 | |
1f45808e PA |
1541 | *tdp_actions = tracepoint_list.stringify (); |
1542 | *stepping_actions = stepping_list.stringify (); | |
c906108c SS |
1543 | } |
1544 | ||
1f45808e | 1545 | void |
833177a4 | 1546 | collection_list::add_aexpr (agent_expr_up aexpr) |
c906108c | 1547 | { |
6c73cd95 | 1548 | m_aexprs.push_back (std::move (aexpr)); |
c906108c SS |
1549 | } |
1550 | ||
bfccc43c YQ |
1551 | static void |
1552 | process_tracepoint_on_disconnect (void) | |
1553 | { | |
bfccc43c YQ |
1554 | int has_pending_p = 0; |
1555 | ||
1556 | /* Check whether we still have pending tracepoint. If we have, warn the | |
1557 | user that pending tracepoint will no longer work. */ | |
f51e0e20 | 1558 | for (breakpoint *b : all_tracepoints ()) |
bfccc43c YQ |
1559 | { |
1560 | if (b->loc == NULL) | |
1561 | { | |
1562 | has_pending_p = 1; | |
1563 | break; | |
1564 | } | |
1565 | else | |
1566 | { | |
40cb8ca5 | 1567 | for (bp_location *loc1 : b->locations ()) |
bfccc43c YQ |
1568 | { |
1569 | if (loc1->shlib_disabled) | |
1570 | { | |
1571 | has_pending_p = 1; | |
1572 | break; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | if (has_pending_p) | |
1577 | break; | |
1578 | } | |
1579 | } | |
bfccc43c YQ |
1580 | |
1581 | if (has_pending_p) | |
1582 | warning (_("Pending tracepoints will not be resolved while" | |
1583 | " GDB is disconnected\n")); | |
1584 | } | |
1585 | ||
aef525cb YQ |
1586 | /* Reset local state of tracing. */ |
1587 | ||
1588 | void | |
1589 | trace_reset_local_state (void) | |
1590 | { | |
1591 | set_traceframe_num (-1); | |
1592 | set_tracepoint_num (-1); | |
1593 | set_traceframe_context (NULL); | |
1594 | clear_traceframe_info (); | |
1595 | } | |
c5aa993b | 1596 | |
f224b49d | 1597 | void |
0b39b52e | 1598 | start_tracing (const char *notes) |
d183932d | 1599 | { |
d914c394 | 1600 | int any_enabled = 0, num_to_download = 0; |
f196051f SS |
1601 | int ret; |
1602 | ||
f6d17b2b | 1603 | auto tracepoint_range = all_tracepoints (); |
76a2b958 | 1604 | |
c378eb4e | 1605 | /* No point in tracing without any tracepoints... */ |
f6d17b2b | 1606 | if (tracepoint_range.begin () == tracepoint_range.end ()) |
f51e0e20 | 1607 | error (_("No tracepoints defined, not starting trace")); |
76a2b958 | 1608 | |
f6d17b2b | 1609 | for (breakpoint *b : tracepoint_range) |
76a2b958 | 1610 | { |
d9b3f62e | 1611 | if (b->enable_state == bp_enabled) |
d914c394 SS |
1612 | any_enabled = 1; |
1613 | ||
d9b3f62e | 1614 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1615 | ? may_insert_fast_tracepoints |
1616 | : may_insert_tracepoints)) | |
1617 | ++num_to_download; | |
1618 | else | |
1619 | warning (_("May not insert %stracepoints, skipping tracepoint %d"), | |
d9b3f62e | 1620 | (b->type == bp_fast_tracepoint ? "fast " : ""), b->number); |
76a2b958 SS |
1621 | } |
1622 | ||
76a2b958 SS |
1623 | if (!any_enabled) |
1624 | { | |
d248b706 KY |
1625 | if (target_supports_enable_disable_tracepoint ()) |
1626 | warning (_("No tracepoints enabled")); | |
1627 | else | |
1628 | { | |
1629 | /* No point in tracing with only disabled tracepoints that | |
1630 | cannot be re-enabled. */ | |
d248b706 KY |
1631 | error (_("No tracepoints enabled, not starting trace")); |
1632 | } | |
76a2b958 SS |
1633 | } |
1634 | ||
d914c394 | 1635 | if (num_to_download <= 0) |
f51e0e20 | 1636 | error (_("No tracepoints that may be downloaded, not starting trace")); |
d914c394 | 1637 | |
76a2b958 SS |
1638 | target_trace_init (); |
1639 | ||
f6d17b2b | 1640 | for (breakpoint *b : tracepoint_range) |
7a697b8d | 1641 | { |
d9b3f62e | 1642 | struct tracepoint *t = (struct tracepoint *) b; |
f2a8bc8a | 1643 | int bp_location_downloaded = 0; |
d9b3f62e | 1644 | |
4511b1ba | 1645 | /* Clear `inserted' flag. */ |
40cb8ca5 | 1646 | for (bp_location *loc : b->locations ()) |
4511b1ba YQ |
1647 | loc->inserted = 0; |
1648 | ||
d9b3f62e | 1649 | if ((b->type == bp_fast_tracepoint |
d914c394 SS |
1650 | ? !may_insert_fast_tracepoints |
1651 | : !may_insert_tracepoints)) | |
1652 | continue; | |
1653 | ||
35b1e5cc | 1654 | t->number_on_target = 0; |
e8ba3115 | 1655 | |
40cb8ca5 | 1656 | for (bp_location *loc : b->locations ()) |
1e4d1764 YQ |
1657 | { |
1658 | /* Since tracepoint locations are never duplicated, `inserted' | |
1659 | flag should be zero. */ | |
1660 | gdb_assert (!loc->inserted); | |
1661 | ||
1662 | target_download_tracepoint (loc); | |
1663 | ||
1664 | loc->inserted = 1; | |
f2a8bc8a | 1665 | bp_location_downloaded = 1; |
1e4d1764 | 1666 | } |
e8ba3115 | 1667 | |
d9b3f62e | 1668 | t->number_on_target = b->number; |
55aa24fb | 1669 | |
40cb8ca5 | 1670 | for (bp_location *loc : b->locations ()) |
935676c9 SDJ |
1671 | if (loc->probe.prob != NULL) |
1672 | loc->probe.prob->set_semaphore (loc->probe.objfile, | |
1673 | loc->gdbarch); | |
f2a8bc8a YQ |
1674 | |
1675 | if (bp_location_downloaded) | |
76727919 | 1676 | gdb::observers::breakpoint_modified.notify (b); |
7a697b8d | 1677 | } |
76a2b958 | 1678 | |
00bf0b85 | 1679 | /* Send down all the trace state variables too. */ |
c252925c SM |
1680 | for (const trace_state_variable &tsv : tvariables) |
1681 | target_download_trace_state_variable (tsv); | |
35b1e5cc SS |
1682 | |
1683 | /* Tell target to treat text-like sections as transparent. */ | |
1684 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1685 | /* Set some mode flags. */ |
1686 | target_set_disconnected_tracing (disconnected_tracing); | |
1687 | target_set_circular_trace_buffer (circular_trace_buffer); | |
f6f899bf | 1688 | target_set_trace_buffer_size (trace_buffer_size); |
1042e4c0 | 1689 | |
f196051f SS |
1690 | if (!notes) |
1691 | notes = trace_notes; | |
1692 | ret = target_set_trace_notes (trace_user, notes, NULL); | |
1693 | ||
1694 | if (!ret && (trace_user || notes)) | |
43011e52 | 1695 | warning (_("Target does not support trace user/notes, info ignored")); |
f196051f | 1696 | |
35b1e5cc SS |
1697 | /* Now insert traps and begin collecting data. */ |
1698 | target_trace_start (); | |
1042e4c0 | 1699 | |
35b1e5cc | 1700 | /* Reset our local state. */ |
aef525cb | 1701 | trace_reset_local_state (); |
00bf0b85 | 1702 | current_trace_status()->running = 1; |
1042e4c0 SS |
1703 | } |
1704 | ||
f196051f SS |
1705 | /* The tstart command requests the target to start a new trace run. |
1706 | The command passes any arguments it has to the target verbatim, as | |
1707 | an optional "trace note". This is useful as for instance a warning | |
1708 | to other users if the trace runs disconnected, and you don't want | |
1709 | anybody else messing with the target. */ | |
f224b49d VP |
1710 | |
1711 | static void | |
0b39b52e | 1712 | tstart_command (const char *args, int from_tty) |
f224b49d VP |
1713 | { |
1714 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1715 | ||
615bcdef SS |
1716 | if (current_trace_status ()->running) |
1717 | { | |
1718 | if (from_tty | |
1719 | && !query (_("A trace is running already. Start a new run? "))) | |
1720 | error (_("New trace run not started.")); | |
1721 | } | |
1722 | ||
f196051f | 1723 | start_tracing (args); |
f224b49d VP |
1724 | } |
1725 | ||
f196051f SS |
1726 | /* The tstop command stops the tracing run. The command passes any |
1727 | supplied arguments to the target verbatim as a "stop note"; if the | |
1728 | target supports trace notes, then it will be reported back as part | |
1729 | of the trace run's status. */ | |
1730 | ||
c906108c | 1731 | static void |
0b39b52e | 1732 | tstop_command (const char *args, int from_tty) |
d183932d | 1733 | { |
615bcdef SS |
1734 | if (!current_trace_status ()->running) |
1735 | error (_("Trace is not running.")); | |
1736 | ||
f196051f | 1737 | stop_tracing (args); |
c906108c SS |
1738 | } |
1739 | ||
d5551862 | 1740 | void |
0b39b52e | 1741 | stop_tracing (const char *note) |
d5551862 | 1742 | { |
f196051f SS |
1743 | int ret; |
1744 | ||
35b1e5cc | 1745 | target_trace_stop (); |
f196051f | 1746 | |
f51e0e20 | 1747 | for (breakpoint *t : all_tracepoints ()) |
55aa24fb | 1748 | { |
55aa24fb SDJ |
1749 | if ((t->type == bp_fast_tracepoint |
1750 | ? !may_insert_fast_tracepoints | |
1751 | : !may_insert_tracepoints)) | |
1752 | continue; | |
1753 | ||
40cb8ca5 | 1754 | for (bp_location *loc : t->locations ()) |
55aa24fb SDJ |
1755 | { |
1756 | /* GDB can be totally absent in some disconnected trace scenarios, | |
1757 | but we don't really care if this semaphore goes out of sync. | |
1758 | That's why we are decrementing it here, but not taking care | |
1759 | in other places. */ | |
935676c9 SDJ |
1760 | if (loc->probe.prob != NULL) |
1761 | loc->probe.prob->clear_semaphore (loc->probe.objfile, | |
1762 | loc->gdbarch); | |
55aa24fb SDJ |
1763 | } |
1764 | } | |
1765 | ||
f196051f SS |
1766 | if (!note) |
1767 | note = trace_stop_notes; | |
1768 | ret = target_set_trace_notes (NULL, NULL, note); | |
1769 | ||
1770 | if (!ret && note) | |
43011e52 | 1771 | warning (_("Target does not support trace notes, note ignored")); |
f196051f | 1772 | |
c378eb4e | 1773 | /* Should change in response to reply? */ |
00bf0b85 | 1774 | current_trace_status ()->running = 0; |
d5551862 SS |
1775 | } |
1776 | ||
c906108c SS |
1777 | /* tstatus command */ |
1778 | static void | |
0b39b52e | 1779 | tstatus_command (const char *args, int from_tty) |
d183932d | 1780 | { |
00bf0b85 | 1781 | struct trace_status *ts = current_trace_status (); |
f51e0e20 | 1782 | int status; |
35b1e5cc | 1783 | |
00bf0b85 SS |
1784 | status = target_get_trace_status (ts); |
1785 | ||
1786 | if (status == -1) | |
1787 | { | |
f5911ea1 | 1788 | if (ts->filename != NULL) |
00bf0b85 SS |
1789 | printf_filtered (_("Using a trace file.\n")); |
1790 | else | |
1791 | { | |
1792 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1793 | return; | |
1794 | } | |
1795 | } | |
1796 | ||
1797 | if (!ts->running_known) | |
1798 | { | |
1799 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1800 | } | |
1801 | else if (ts->running) | |
c906108c | 1802 | { |
35b1e5cc | 1803 | printf_filtered (_("Trace is running on the target.\n")); |
c906108c SS |
1804 | } |
1805 | else | |
00bf0b85 SS |
1806 | { |
1807 | switch (ts->stop_reason) | |
1808 | { | |
1809 | case trace_never_run: | |
1810 | printf_filtered (_("No trace has been run on the target.\n")); | |
1811 | break; | |
e5a873b7 | 1812 | case trace_stop_command: |
f196051f SS |
1813 | if (ts->stop_desc) |
1814 | printf_filtered (_("Trace stopped by a tstop command (%s).\n"), | |
1815 | ts->stop_desc); | |
1816 | else | |
1817 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
00bf0b85 SS |
1818 | break; |
1819 | case trace_buffer_full: | |
1820 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1821 | break; | |
1822 | case trace_disconnected: | |
1823 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1824 | break; | |
1825 | case tracepoint_passcount: | |
00bf0b85 SS |
1826 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1827 | ts->stopping_tracepoint); | |
1828 | break; | |
6c28cbf2 SS |
1829 | case tracepoint_error: |
1830 | if (ts->stopping_tracepoint) | |
3e43a32a MS |
1831 | printf_filtered (_("Trace stopped by an " |
1832 | "error (%s, tracepoint %d).\n"), | |
f196051f | 1833 | ts->stop_desc, ts->stopping_tracepoint); |
6c28cbf2 SS |
1834 | else |
1835 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
f196051f | 1836 | ts->stop_desc); |
6c28cbf2 | 1837 | break; |
00bf0b85 SS |
1838 | case trace_stop_reason_unknown: |
1839 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1840 | break; | |
1841 | default: | |
1842 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1843 | ts->stop_reason); | |
1844 | break; | |
1845 | } | |
1846 | } | |
1847 | ||
4daf5ac0 SS |
1848 | if (ts->traceframes_created >= 0 |
1849 | && ts->traceframe_count != ts->traceframes_created) | |
1850 | { | |
3e43a32a MS |
1851 | printf_filtered (_("Buffer contains %d trace " |
1852 | "frames (of %d created total).\n"), | |
4daf5ac0 SS |
1853 | ts->traceframe_count, ts->traceframes_created); |
1854 | } | |
1855 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1856 | { |
1857 | printf_filtered (_("Collected %d trace frames.\n"), | |
1858 | ts->traceframe_count); | |
1859 | } | |
1860 | ||
4daf5ac0 | 1861 | if (ts->buffer_free >= 0) |
00bf0b85 | 1862 | { |
4daf5ac0 SS |
1863 | if (ts->buffer_size >= 0) |
1864 | { | |
1865 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1866 | ts->buffer_free, ts->buffer_size); | |
1867 | if (ts->buffer_size > 0) | |
1868 | printf_filtered (_(" (%d%% full)"), | |
1869 | ((int) ((((long long) (ts->buffer_size | |
1870 | - ts->buffer_free)) * 100) | |
1871 | / ts->buffer_size))); | |
1872 | printf_filtered (_(".\n")); | |
1873 | } | |
1874 | else | |
1875 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1876 | ts->buffer_free); | |
00bf0b85 | 1877 | } |
35b1e5cc | 1878 | |
33da3f1c SS |
1879 | if (ts->disconnected_tracing) |
1880 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
1881 | else | |
1882 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); | |
1883 | ||
1884 | if (ts->circular_buffer) | |
1885 | printf_filtered (_("Trace buffer is circular.\n")); | |
1886 | ||
f196051f SS |
1887 | if (ts->user_name && strlen (ts->user_name) > 0) |
1888 | printf_filtered (_("Trace user is %s.\n"), ts->user_name); | |
1889 | ||
1890 | if (ts->notes && strlen (ts->notes) > 0) | |
1891 | printf_filtered (_("Trace notes: %s.\n"), ts->notes); | |
1892 | ||
00bf0b85 | 1893 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1894 | if (traceframe_number >= 0) |
1895 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1896 | traceframe_number, tracepoint_number); | |
1897 | else | |
1898 | printf_filtered (_("Not looking at any trace frame.\n")); | |
f196051f SS |
1899 | |
1900 | /* Report start/stop times if supplied. */ | |
1901 | if (ts->start_time) | |
1902 | { | |
1903 | if (ts->stop_time) | |
1904 | { | |
1905 | LONGEST run_time = ts->stop_time - ts->start_time; | |
1906 | ||
1907 | /* Reporting a run time is more readable than two long numbers. */ | |
1908 | printf_filtered (_("Trace started at %ld.%06ld secs, stopped %ld.%06ld secs later.\n"), | |
f30aa5af DK |
1909 | (long int) (ts->start_time / 1000000), |
1910 | (long int) (ts->start_time % 1000000), | |
1911 | (long int) (run_time / 1000000), | |
1912 | (long int) (run_time % 1000000)); | |
f196051f SS |
1913 | } |
1914 | else | |
1915 | printf_filtered (_("Trace started at %ld.%06ld secs.\n"), | |
f30aa5af DK |
1916 | (long int) (ts->start_time / 1000000), |
1917 | (long int) (ts->start_time % 1000000)); | |
f196051f SS |
1918 | } |
1919 | else if (ts->stop_time) | |
1920 | printf_filtered (_("Trace stopped at %ld.%06ld secs.\n"), | |
f30aa5af DK |
1921 | (long int) (ts->stop_time / 1000000), |
1922 | (long int) (ts->stop_time % 1000000)); | |
f196051f SS |
1923 | |
1924 | /* Now report any per-tracepoint status available. */ | |
f51e0e20 | 1925 | for (breakpoint *t : all_tracepoints ()) |
f196051f | 1926 | target_get_tracepoint_status (t, NULL); |
c906108c SS |
1927 | } |
1928 | ||
f224b49d VP |
1929 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1930 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1931 | are not meaningful in the -trace-stop response. | |
1932 | ||
1933 | The implementation is essentially parallel to trace_status_command, but | |
1934 | merging them will result in unreadable code. */ | |
1935 | void | |
1936 | trace_status_mi (int on_stop) | |
1937 | { | |
79a45e25 | 1938 | struct ui_out *uiout = current_uiout; |
f224b49d VP |
1939 | struct trace_status *ts = current_trace_status (); |
1940 | int status; | |
f224b49d VP |
1941 | |
1942 | status = target_get_trace_status (ts); | |
1943 | ||
f5911ea1 | 1944 | if (status == -1 && ts->filename == NULL) |
f224b49d | 1945 | { |
112e8700 | 1946 | uiout->field_string ("supported", "0"); |
f224b49d VP |
1947 | return; |
1948 | } | |
1949 | ||
f5911ea1 | 1950 | if (ts->filename != NULL) |
112e8700 | 1951 | uiout->field_string ("supported", "file"); |
f224b49d | 1952 | else if (!on_stop) |
112e8700 | 1953 | uiout->field_string ("supported", "1"); |
f224b49d | 1954 | |
f5911ea1 | 1955 | if (ts->filename != NULL) |
112e8700 | 1956 | uiout->field_string ("trace-file", ts->filename); |
f5911ea1 | 1957 | |
f224b49d VP |
1958 | gdb_assert (ts->running_known); |
1959 | ||
1960 | if (ts->running) | |
1961 | { | |
112e8700 | 1962 | uiout->field_string ("running", "1"); |
f224b49d VP |
1963 | |
1964 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1965 | Given that the frontend gets the status either on -trace-stop, or from | |
1966 | -trace-status after re-connection, it does not seem like this | |
1967 | information is necessary for anything. It is not necessary for either | |
1968 | figuring the vital state of the target nor for navigation of trace | |
1969 | frames. If the frontend wants to show the current state is some | |
1970 | configure dialog, it can request the value when such dialog is | |
1971 | invoked by the user. */ | |
1972 | } | |
1973 | else | |
1974 | { | |
a121b7c1 | 1975 | const char *stop_reason = NULL; |
f224b49d VP |
1976 | int stopping_tracepoint = -1; |
1977 | ||
1978 | if (!on_stop) | |
112e8700 | 1979 | uiout->field_string ("running", "0"); |
f224b49d VP |
1980 | |
1981 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1982 | { | |
1983 | switch (ts->stop_reason) | |
1984 | { | |
e5a873b7 | 1985 | case trace_stop_command: |
f224b49d VP |
1986 | stop_reason = "request"; |
1987 | break; | |
1988 | case trace_buffer_full: | |
1989 | stop_reason = "overflow"; | |
1990 | break; | |
1991 | case trace_disconnected: | |
1992 | stop_reason = "disconnection"; | |
1993 | break; | |
1994 | case tracepoint_passcount: | |
1995 | stop_reason = "passcount"; | |
1996 | stopping_tracepoint = ts->stopping_tracepoint; | |
1997 | break; | |
6c28cbf2 SS |
1998 | case tracepoint_error: |
1999 | stop_reason = "error"; | |
2000 | stopping_tracepoint = ts->stopping_tracepoint; | |
2001 | break; | |
f224b49d VP |
2002 | } |
2003 | ||
2004 | if (stop_reason) | |
2005 | { | |
112e8700 | 2006 | uiout->field_string ("stop-reason", stop_reason); |
f224b49d | 2007 | if (stopping_tracepoint != -1) |
381befee TT |
2008 | uiout->field_signed ("stopping-tracepoint", |
2009 | stopping_tracepoint); | |
6c28cbf2 | 2010 | if (ts->stop_reason == tracepoint_error) |
112e8700 | 2011 | uiout->field_string ("error-description", |
f196051f | 2012 | ts->stop_desc); |
f224b49d VP |
2013 | } |
2014 | } | |
2015 | } | |
2016 | ||
a97153c7 | 2017 | if (ts->traceframe_count != -1) |
381befee | 2018 | uiout->field_signed ("frames", ts->traceframe_count); |
87290684 | 2019 | if (ts->traceframes_created != -1) |
381befee | 2020 | uiout->field_signed ("frames-created", ts->traceframes_created); |
a97153c7 | 2021 | if (ts->buffer_size != -1) |
381befee | 2022 | uiout->field_signed ("buffer-size", ts->buffer_size); |
a97153c7 | 2023 | if (ts->buffer_free != -1) |
381befee | 2024 | uiout->field_signed ("buffer-free", ts->buffer_free); |
a97153c7 | 2025 | |
381befee TT |
2026 | uiout->field_signed ("disconnected", ts->disconnected_tracing); |
2027 | uiout->field_signed ("circular", ts->circular_buffer); | |
f196051f | 2028 | |
112e8700 SM |
2029 | uiout->field_string ("user-name", ts->user_name); |
2030 | uiout->field_string ("notes", ts->notes); | |
f196051f SS |
2031 | |
2032 | { | |
2033 | char buf[100]; | |
2034 | ||
2035 | xsnprintf (buf, sizeof buf, "%ld.%06ld", | |
f30aa5af DK |
2036 | (long int) (ts->start_time / 1000000), |
2037 | (long int) (ts->start_time % 1000000)); | |
112e8700 | 2038 | uiout->field_string ("start-time", buf); |
f196051f | 2039 | xsnprintf (buf, sizeof buf, "%ld.%06ld", |
f30aa5af DK |
2040 | (long int) (ts->stop_time / 1000000), |
2041 | (long int) (ts->stop_time % 1000000)); | |
112e8700 | 2042 | uiout->field_string ("stop-time", buf); |
f196051f | 2043 | } |
f224b49d VP |
2044 | } |
2045 | ||
2f9d54cf PA |
2046 | /* Check if a trace run is ongoing. If so, and FROM_TTY, query the |
2047 | user if she really wants to detach. */ | |
2048 | ||
d5551862 | 2049 | void |
2f9d54cf | 2050 | query_if_trace_running (int from_tty) |
d5551862 | 2051 | { |
2f9d54cf PA |
2052 | if (!from_tty) |
2053 | return; | |
2054 | ||
00bf0b85 SS |
2055 | /* It can happen that the target that was tracing went away on its |
2056 | own, and we didn't notice. Get a status update, and if the | |
2057 | current target doesn't even do tracing, then assume it's not | |
2058 | running anymore. */ | |
26afc0d7 | 2059 | if (target_get_trace_status (current_trace_status ()) < 0) |
00bf0b85 SS |
2060 | current_trace_status ()->running = 0; |
2061 | ||
33da3f1c SS |
2062 | /* If running interactively, give the user the option to cancel and |
2063 | then decide what to do differently with the run. Scripts are | |
2064 | just going to disconnect and let the target deal with it, | |
2065 | according to how it's been instructed previously via | |
2066 | disconnected-tracing. */ | |
2f9d54cf | 2067 | if (current_trace_status ()->running) |
d5551862 | 2068 | { |
bfccc43c YQ |
2069 | process_tracepoint_on_disconnect (); |
2070 | ||
33da3f1c SS |
2071 | if (current_trace_status ()->disconnected_tracing) |
2072 | { | |
3e43a32a MS |
2073 | if (!query (_("Trace is running and will " |
2074 | "continue after detach; detach anyway? "))) | |
33da3f1c SS |
2075 | error (_("Not confirmed.")); |
2076 | } | |
2077 | else | |
2078 | { | |
3e43a32a MS |
2079 | if (!query (_("Trace is running but will " |
2080 | "stop on detach; detach anyway? "))) | |
33da3f1c SS |
2081 | error (_("Not confirmed.")); |
2082 | } | |
d5551862 | 2083 | } |
2f9d54cf | 2084 | } |
8b9b7ef8 | 2085 | |
2f9d54cf PA |
2086 | /* This function handles the details of what to do about an ongoing |
2087 | tracing run if the user has asked to detach or otherwise disconnect | |
2088 | from the target. */ | |
2089 | ||
2090 | void | |
2091 | disconnect_tracing (void) | |
2092 | { | |
8b9b7ef8 SS |
2093 | /* Also we want to be out of tfind mode, otherwise things can get |
2094 | confusing upon reconnection. Just use these calls instead of | |
2095 | full tfind_1 behavior because we're in the middle of detaching, | |
2096 | and there's no point to updating current stack frame etc. */ | |
aef525cb | 2097 | trace_reset_local_state (); |
d5551862 SS |
2098 | } |
2099 | ||
d183932d | 2100 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
2101 | void |
2102 | tfind_1 (enum trace_find_type type, int num, | |
cc5925ad | 2103 | CORE_ADDR addr1, CORE_ADDR addr2, |
f197e0f1 | 2104 | int from_tty) |
c906108c SS |
2105 | { |
2106 | int target_frameno = -1, target_tracept = -1; | |
2ce6d6bf | 2107 | struct frame_id old_frame_id = null_frame_id; |
d9b3f62e | 2108 | struct tracepoint *tp; |
79a45e25 | 2109 | struct ui_out *uiout = current_uiout; |
c906108c | 2110 | |
2ce6d6bf SS |
2111 | /* Only try to get the current stack frame if we have a chance of |
2112 | succeeding. In particular, if we're trying to get a first trace | |
2113 | frame while all threads are running, it's not going to succeed, | |
2114 | so leave it with a default value and let the frame comparison | |
2115 | below (correctly) decide to print out the source location of the | |
2116 | trace frame. */ | |
2117 | if (!(type == tfind_number && num == -1) | |
2118 | && (has_stack_frames () || traceframe_number >= 0)) | |
2119 | old_frame_id = get_frame_id (get_current_frame ()); | |
c906108c | 2120 | |
35b1e5cc SS |
2121 | target_frameno = target_trace_find (type, num, addr1, addr2, |
2122 | &target_tracept); | |
2123 | ||
2124 | if (type == tfind_number | |
2125 | && num == -1 | |
2126 | && target_frameno == -1) | |
2127 | { | |
2128 | /* We told the target to get out of tfind mode, and it did. */ | |
2129 | } | |
2130 | else if (target_frameno == -1) | |
2131 | { | |
2ce6d6bf | 2132 | /* A request for a non-existent trace frame has failed. |
35b1e5cc SS |
2133 | Our response will be different, depending on FROM_TTY: |
2134 | ||
2135 | If FROM_TTY is true, meaning that this command was | |
2136 | typed interactively by the user, then give an error | |
2137 | and DO NOT change the state of traceframe_number etc. | |
2138 | ||
2139 | However if FROM_TTY is false, meaning that we're either | |
2140 | in a script, a loop, or a user-defined command, then | |
2141 | DON'T give an error, but DO change the state of | |
2142 | traceframe_number etc. to invalid. | |
2143 | ||
30baf67b | 2144 | The rationale is that if you typed the command, you |
35b1e5cc SS |
2145 | might just have committed a typo or something, and you'd |
2146 | like to NOT lose your current debugging state. However | |
2147 | if you're in a user-defined command or especially in a | |
2148 | loop, then you need a way to detect that the command | |
2149 | failed WITHOUT aborting. This allows you to write | |
2150 | scripts that search thru the trace buffer until the end, | |
2151 | and then continue on to do something else. */ | |
2152 | ||
2153 | if (from_tty) | |
2154 | error (_("Target failed to find requested trace frame.")); | |
2155 | else | |
2156 | { | |
2157 | if (info_verbose) | |
2158 | printf_filtered ("End of trace buffer.\n"); | |
c378eb4e | 2159 | #if 0 /* dubious now? */ |
35b1e5cc SS |
2160 | /* The following will not recurse, since it's |
2161 | special-cased. */ | |
e5a873b7 | 2162 | tfind_command ("-1", from_tty); |
35b1e5cc SS |
2163 | #endif |
2164 | } | |
2165 | } | |
2166 | ||
d5551862 SS |
2167 | tp = get_tracepoint_by_number_on_target (target_tracept); |
2168 | ||
35f196d9 | 2169 | reinit_frame_cache (); |
2f4d8875 | 2170 | target_dcache_invalidate (); |
8d735b87 | 2171 | |
c1fc2657 | 2172 | set_tracepoint_num (tp ? tp->number : target_tracept); |
201b4506 YQ |
2173 | |
2174 | if (target_frameno != get_traceframe_number ()) | |
76727919 | 2175 | gdb::observers::traceframe_changed.notify (target_frameno, tracepoint_number); |
201b4506 | 2176 | |
8d735b87 YQ |
2177 | set_current_traceframe (target_frameno); |
2178 | ||
c906108c | 2179 | if (target_frameno == -1) |
fb14de7b | 2180 | set_traceframe_context (NULL); |
c906108c | 2181 | else |
fb14de7b | 2182 | set_traceframe_context (get_current_frame ()); |
c906108c | 2183 | |
f197e0f1 VP |
2184 | if (traceframe_number >= 0) |
2185 | { | |
2186 | /* Use different branches for MI and CLI to make CLI messages | |
2187 | i18n-eable. */ | |
112e8700 | 2188 | if (uiout->is_mi_like_p ()) |
f197e0f1 | 2189 | { |
112e8700 | 2190 | uiout->field_string ("found", "1"); |
381befee TT |
2191 | uiout->field_signed ("tracepoint", tracepoint_number); |
2192 | uiout->field_signed ("traceframe", traceframe_number); | |
f197e0f1 VP |
2193 | } |
2194 | else | |
2195 | { | |
2196 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
2197 | traceframe_number, tracepoint_number); | |
2198 | } | |
2199 | } | |
2200 | else | |
2201 | { | |
112e8700 SM |
2202 | if (uiout->is_mi_like_p ()) |
2203 | uiout->field_string ("found", "0"); | |
4136fdd2 SS |
2204 | else if (type == tfind_number && num == -1) |
2205 | printf_unfiltered (_("No longer looking at any trace frame\n")); | |
c378eb4e | 2206 | else /* This case may never occur, check. */ |
4136fdd2 | 2207 | printf_unfiltered (_("No trace frame found\n")); |
f197e0f1 VP |
2208 | } |
2209 | ||
00bf0b85 SS |
2210 | /* If we're in nonstop mode and getting out of looking at trace |
2211 | frames, there won't be any current frame to go back to and | |
2212 | display. */ | |
2213 | if (from_tty | |
2214 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 2215 | { |
0faf0076 | 2216 | enum print_what print_what; |
c906108c | 2217 | |
2ce6d6bf | 2218 | /* NOTE: in imitation of the step command, try to determine |
dda83cd7 SM |
2219 | whether we have made a transition from one function to |
2220 | another. If so, we'll print the "stack frame" (ie. the new | |
2221 | function and it's arguments) -- otherwise we'll just show the | |
2222 | new source line. */ | |
fb14de7b UW |
2223 | |
2224 | if (frame_id_eq (old_frame_id, | |
2225 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 2226 | print_what = SRC_LINE; |
c906108c | 2227 | else |
0faf0076 | 2228 | print_what = SRC_AND_LOC; |
c906108c | 2229 | |
08d72866 | 2230 | print_stack_frame (get_selected_frame (NULL), 1, print_what, 1); |
c906108c SS |
2231 | do_displays (); |
2232 | } | |
2233 | } | |
2234 | ||
cc3da688 YQ |
2235 | /* Error on looking at traceframes while trace is running. */ |
2236 | ||
2237 | void | |
2238 | check_trace_running (struct trace_status *status) | |
2239 | { | |
2240 | if (status->running && status->filename == NULL) | |
2241 | error (_("May not look at trace frames while trace is running.")); | |
2242 | } | |
2243 | ||
c906108c SS |
2244 | /* trace_find_command takes a trace frame number n, |
2245 | sends "QTFrame:<n>" to the target, | |
2246 | and accepts a reply that may contain several optional pieces | |
2247 | of information: a frame number, a tracepoint number, and an | |
2248 | indication of whether this is a trap frame or a stepping frame. | |
2249 | ||
2250 | The minimal response is just "OK" (which indicates that the | |
2251 | target does not give us a frame number or a tracepoint number). | |
2252 | Instead of that, the target may send us a string containing | |
2253 | any combination of: | |
c5aa993b JM |
2254 | F<hexnum> (gives the selected frame number) |
2255 | T<hexnum> (gives the selected tracepoint number) | |
2256 | */ | |
c906108c SS |
2257 | |
2258 | /* tfind command */ | |
2259 | static void | |
a121b7c1 | 2260 | tfind_command_1 (const char *args, int from_tty) |
c378eb4e | 2261 | { /* This should only be called with a numeric argument. */ |
c906108c | 2262 | int frameno = -1; |
c906108c | 2263 | |
cc3da688 | 2264 | check_trace_running (current_trace_status ()); |
35b1e5cc SS |
2265 | |
2266 | if (args == 0 || *args == 0) | |
2267 | { /* TFIND with no args means find NEXT trace frame. */ | |
2268 | if (traceframe_number == -1) | |
c378eb4e | 2269 | frameno = 0; /* "next" is first one. */ |
01add95b | 2270 | else |
35b1e5cc SS |
2271 | frameno = traceframe_number + 1; |
2272 | } | |
2273 | else if (0 == strcmp (args, "-")) | |
c906108c | 2274 | { |
35b1e5cc SS |
2275 | if (traceframe_number == -1) |
2276 | error (_("not debugging trace buffer")); | |
2277 | else if (from_tty && traceframe_number == 0) | |
2278 | error (_("already at start of trace buffer")); | |
2279 | ||
2280 | frameno = traceframe_number - 1; | |
2281 | } | |
2282 | /* A hack to work around eval's need for fp to have been collected. */ | |
2283 | else if (0 == strcmp (args, "-1")) | |
2284 | frameno = -1; | |
2285 | else | |
2286 | frameno = parse_and_eval_long (args); | |
c906108c | 2287 | |
35b1e5cc SS |
2288 | if (frameno < -1) |
2289 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 2290 | |
f197e0f1 | 2291 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
2292 | } |
2293 | ||
a121b7c1 | 2294 | static void |
981a3fb3 | 2295 | tfind_command (const char *args, int from_tty) |
a121b7c1 | 2296 | { |
09b847f3 | 2297 | tfind_command_1 (args, from_tty); |
a121b7c1 PA |
2298 | } |
2299 | ||
c906108c SS |
2300 | /* tfind end */ |
2301 | static void | |
2983f7cb | 2302 | tfind_end_command (const char *args, int from_tty) |
c906108c | 2303 | { |
a121b7c1 | 2304 | tfind_command_1 ("-1", from_tty); |
c906108c SS |
2305 | } |
2306 | ||
c906108c SS |
2307 | /* tfind start */ |
2308 | static void | |
2983f7cb | 2309 | tfind_start_command (const char *args, int from_tty) |
c906108c | 2310 | { |
a121b7c1 | 2311 | tfind_command_1 ("0", from_tty); |
c906108c SS |
2312 | } |
2313 | ||
2314 | /* tfind pc command */ | |
2315 | static void | |
2983f7cb | 2316 | tfind_pc_command (const char *args, int from_tty) |
d183932d | 2317 | { |
c906108c | 2318 | CORE_ADDR pc; |
c906108c | 2319 | |
cc3da688 | 2320 | check_trace_running (current_trace_status ()); |
c906108c | 2321 | |
35b1e5cc SS |
2322 | if (args == 0 || *args == 0) |
2323 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 2324 | else |
35b1e5cc SS |
2325 | pc = parse_and_eval_address (args); |
2326 | ||
f197e0f1 | 2327 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
2328 | } |
2329 | ||
2330 | /* tfind tracepoint command */ | |
2331 | static void | |
2983f7cb | 2332 | tfind_tracepoint_command (const char *args, int from_tty) |
d183932d | 2333 | { |
c906108c | 2334 | int tdp; |
d9b3f62e | 2335 | struct tracepoint *tp; |
c906108c | 2336 | |
cc3da688 | 2337 | check_trace_running (current_trace_status ()); |
383e5f85 | 2338 | |
35b1e5cc SS |
2339 | if (args == 0 || *args == 0) |
2340 | { | |
2341 | if (tracepoint_number == -1) | |
2342 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2343 | else |
c378eb4e | 2344 | tdp = tracepoint_number; /* Default is current TDP. */ |
c906108c SS |
2345 | } |
2346 | else | |
35b1e5cc SS |
2347 | tdp = parse_and_eval_long (args); |
2348 | ||
2349 | /* If we have the tracepoint on hand, use the number that the | |
2350 | target knows about (which may be different if we disconnected | |
2351 | and reconnected). */ | |
2352 | tp = get_tracepoint (tdp); | |
2353 | if (tp) | |
2354 | tdp = tp->number_on_target; | |
2355 | ||
f197e0f1 | 2356 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2357 | } |
2358 | ||
2359 | /* TFIND LINE command: | |
c5aa993b | 2360 | |
c906108c | 2361 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2362 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2363 | |
c906108c SS |
2364 | With no argument, this command will find the next trace frame |
2365 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2366 | ||
2367 | static void | |
2983f7cb | 2368 | tfind_line_command (const char *args, int from_tty) |
d183932d | 2369 | { |
cc3da688 | 2370 | check_trace_running (current_trace_status ()); |
5af949e3 | 2371 | |
6c5b2ebe | 2372 | symtab_and_line sal; |
35b1e5cc SS |
2373 | if (args == 0 || *args == 0) |
2374 | { | |
2375 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
35b1e5cc SS |
2376 | } |
2377 | else | |
42e08e69 | 2378 | { |
6c5b2ebe PA |
2379 | std::vector<symtab_and_line> sals |
2380 | = decode_line_with_current_source (args, DECODE_LINE_FUNFIRSTLINE); | |
2381 | sal = sals[0]; | |
35b1e5cc | 2382 | } |
6c5b2ebe | 2383 | |
35b1e5cc | 2384 | if (sal.symtab == 0) |
42e08e69 SS |
2385 | error (_("No line number information available.")); |
2386 | ||
6c5b2ebe | 2387 | CORE_ADDR start_pc, end_pc; |
42e08e69 | 2388 | if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc)) |
35b1e5cc SS |
2389 | { |
2390 | if (start_pc == end_pc) | |
24b21115 | 2391 | { |
35b1e5cc | 2392 | printf_filtered ("Line %d of \"%s\"", |
05cba821 JK |
2393 | sal.line, |
2394 | symtab_to_filename_for_display (sal.symtab)); | |
35b1e5cc SS |
2395 | wrap_here (" "); |
2396 | printf_filtered (" is at address "); | |
2397 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2398 | wrap_here (" "); | |
2399 | printf_filtered (" but contains no code.\n"); | |
2400 | sal = find_pc_line (start_pc, 0); | |
2401 | if (sal.line > 0 | |
2402 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2403 | && start_pc != end_pc) | |
2404 | printf_filtered ("Attempting to find line %d instead.\n", | |
2405 | sal.line); | |
24b21115 | 2406 | else |
35b1e5cc | 2407 | error (_("Cannot find a good line.")); |
24b21115 | 2408 | } |
35b1e5cc SS |
2409 | } |
2410 | else | |
01add95b SM |
2411 | { |
2412 | /* Is there any case in which we get here, and have an address | |
2413 | which the user would want to see? If we have debugging | |
2414 | symbols and no line numbers? */ | |
2415 | error (_("Line number %d is out of range for \"%s\"."), | |
2416 | sal.line, symtab_to_filename_for_display (sal.symtab)); | |
2417 | } | |
35b1e5cc SS |
2418 | |
2419 | /* Find within range of stated line. */ | |
2420 | if (args && *args) | |
f197e0f1 | 2421 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2422 | else |
f197e0f1 | 2423 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
c906108c SS |
2424 | } |
2425 | ||
2426 | /* tfind range command */ | |
2427 | static void | |
2983f7cb | 2428 | tfind_range_command (const char *args, int from_tty) |
104c1213 | 2429 | { |
c906108c | 2430 | static CORE_ADDR start, stop; |
2983f7cb | 2431 | const char *tmp; |
c906108c | 2432 | |
cc3da688 | 2433 | check_trace_running (current_trace_status ()); |
c906108c | 2434 | |
35b1e5cc SS |
2435 | if (args == 0 || *args == 0) |
2436 | { /* XXX FIXME: what should default behavior be? */ | |
65e65158 | 2437 | printf_filtered ("Usage: tfind range STARTADDR, ENDADDR\n"); |
35b1e5cc SS |
2438 | return; |
2439 | } | |
c906108c | 2440 | |
35b1e5cc SS |
2441 | if (0 != (tmp = strchr (args, ','))) |
2442 | { | |
2983f7cb TT |
2443 | std::string start_addr (args, tmp); |
2444 | ++tmp; | |
529480d0 | 2445 | tmp = skip_spaces (tmp); |
2983f7cb | 2446 | start = parse_and_eval_address (start_addr.c_str ()); |
35b1e5cc | 2447 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2448 | } |
2449 | else | |
c378eb4e | 2450 | { /* No explicit end address? */ |
35b1e5cc SS |
2451 | start = parse_and_eval_address (args); |
2452 | stop = start + 1; /* ??? */ | |
2453 | } | |
2454 | ||
f197e0f1 | 2455 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2456 | } |
2457 | ||
2458 | /* tfind outside command */ | |
2459 | static void | |
2983f7cb | 2460 | tfind_outside_command (const char *args, int from_tty) |
104c1213 | 2461 | { |
c906108c | 2462 | CORE_ADDR start, stop; |
2983f7cb | 2463 | const char *tmp; |
c906108c | 2464 | |
f5911ea1 HAQ |
2465 | if (current_trace_status ()->running |
2466 | && current_trace_status ()->filename == NULL) | |
a73c6dcd | 2467 | error (_("May not look at trace frames while trace is running.")); |
c906108c | 2468 | |
35b1e5cc | 2469 | if (args == 0 || *args == 0) |
c378eb4e | 2470 | { /* XXX FIXME: what should default behavior be? */ |
65e65158 | 2471 | printf_filtered ("Usage: tfind outside STARTADDR, ENDADDR\n"); |
35b1e5cc SS |
2472 | return; |
2473 | } | |
c906108c | 2474 | |
35b1e5cc SS |
2475 | if (0 != (tmp = strchr (args, ','))) |
2476 | { | |
2983f7cb TT |
2477 | std::string start_addr (args, tmp); |
2478 | ++tmp; | |
529480d0 | 2479 | tmp = skip_spaces (tmp); |
2983f7cb | 2480 | start = parse_and_eval_address (start_addr.c_str ()); |
35b1e5cc | 2481 | stop = parse_and_eval_address (tmp); |
c906108c SS |
2482 | } |
2483 | else | |
c378eb4e | 2484 | { /* No explicit end address? */ |
35b1e5cc SS |
2485 | start = parse_and_eval_address (args); |
2486 | stop = start + 1; /* ??? */ | |
2487 | } | |
2488 | ||
f197e0f1 | 2489 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2490 | } |
2491 | ||
c906108c SS |
2492 | /* info scope command: list the locals for a scope. */ |
2493 | static void | |
1d12d88f | 2494 | info_scope_command (const char *args_in, int from_tty) |
c906108c | 2495 | { |
c906108c | 2496 | struct symbol *sym; |
3b7344d5 | 2497 | struct bound_minimal_symbol msym; |
3977b71f | 2498 | const struct block *block; |
0d5cff50 | 2499 | const char *symname; |
f2fc3015 | 2500 | const char *save_args = args_in; |
8157b174 | 2501 | struct block_iterator iter; |
de4f826b | 2502 | int j, count = 0; |
768a979c UW |
2503 | struct gdbarch *gdbarch; |
2504 | int regno; | |
f2fc3015 | 2505 | const char *args = args_in; |
c906108c SS |
2506 | |
2507 | if (args == 0 || *args == 0) | |
3e43a32a MS |
2508 | error (_("requires an argument (function, " |
2509 | "line or *addr) to define a scope")); | |
c906108c | 2510 | |
ffc2605c TT |
2511 | event_location_up location = string_to_event_location (&args, |
2512 | current_language); | |
6c5b2ebe PA |
2513 | std::vector<symtab_and_line> sals |
2514 | = decode_line_1 (location.get (), DECODE_LINE_FUNFIRSTLINE, | |
2515 | NULL, NULL, 0); | |
2516 | if (sals.empty ()) | |
f00aae0f KS |
2517 | { |
2518 | /* Presumably decode_line_1 has already warned. */ | |
f00aae0f KS |
2519 | return; |
2520 | } | |
c906108c | 2521 | |
c378eb4e | 2522 | /* Resolve line numbers to PC. */ |
6c5b2ebe PA |
2523 | resolve_sal_pc (&sals[0]); |
2524 | block = block_for_pc (sals[0].pc); | |
c906108c SS |
2525 | |
2526 | while (block != 0) | |
2527 | { | |
c378eb4e | 2528 | QUIT; /* Allow user to bail out with ^C. */ |
de4f826b | 2529 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2530 | { |
c378eb4e | 2531 | QUIT; /* Allow user to bail out with ^C. */ |
c906108c SS |
2532 | if (count == 0) |
2533 | printf_filtered ("Scope for %s:\n", save_args); | |
2534 | count++; | |
e88c90f2 | 2535 | |
987012b8 | 2536 | symname = sym->print_name (); |
c906108c | 2537 | if (symname == NULL || *symname == '\0') |
c378eb4e | 2538 | continue; /* Probably botched, certainly useless. */ |
c906108c | 2539 | |
08be3fe3 | 2540 | gdbarch = symbol_arch (sym); |
768a979c | 2541 | |
c906108c | 2542 | printf_filtered ("Symbol %s is ", symname); |
24d6c2a0 TT |
2543 | |
2544 | if (SYMBOL_COMPUTED_OPS (sym) != NULL) | |
2545 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, | |
2b1ffcfd | 2546 | BLOCK_ENTRY_PC (block), |
24d6c2a0 TT |
2547 | gdb_stdout); |
2548 | else | |
c5aa993b | 2549 | { |
24d6c2a0 | 2550 | switch (SYMBOL_CLASS (sym)) |
c5aa993b | 2551 | { |
24d6c2a0 TT |
2552 | default: |
2553 | case LOC_UNDEF: /* Messed up symbol? */ | |
2554 | printf_filtered ("a bogus symbol, class %d.\n", | |
2555 | SYMBOL_CLASS (sym)); | |
2556 | count--; /* Don't count this one. */ | |
2557 | continue; | |
2558 | case LOC_CONST: | |
2559 | printf_filtered ("a constant with value %s (%s)", | |
2560 | plongest (SYMBOL_VALUE (sym)), | |
2561 | hex_string (SYMBOL_VALUE (sym))); | |
2562 | break; | |
2563 | case LOC_CONST_BYTES: | |
2564 | printf_filtered ("constant bytes: "); | |
2565 | if (SYMBOL_TYPE (sym)) | |
2566 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2567 | fprintf_filtered (gdb_stdout, " %02x", | |
2568 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2569 | break; | |
2570 | case LOC_STATIC: | |
2571 | printf_filtered ("in static storage at address "); | |
2572 | printf_filtered ("%s", paddress (gdbarch, | |
2573 | SYMBOL_VALUE_ADDRESS (sym))); | |
2574 | break; | |
2575 | case LOC_REGISTER: | |
2576 | /* GDBARCH is the architecture associated with the objfile | |
2577 | the symbol is defined in; the target architecture may be | |
2578 | different, and may provide additional registers. However, | |
2579 | we do not know the target architecture at this point. | |
2580 | We assume the objfile architecture will contain all the | |
2581 | standard registers that occur in debug info in that | |
2582 | objfile. */ | |
2583 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, | |
2584 | gdbarch); | |
2585 | ||
2586 | if (SYMBOL_IS_ARGUMENT (sym)) | |
2587 | printf_filtered ("an argument in register $%s", | |
2588 | gdbarch_register_name (gdbarch, regno)); | |
2589 | else | |
2590 | printf_filtered ("a local variable in register $%s", | |
2591 | gdbarch_register_name (gdbarch, regno)); | |
2592 | break; | |
2593 | case LOC_ARG: | |
2594 | printf_filtered ("an argument at stack/frame offset %s", | |
2595 | plongest (SYMBOL_VALUE (sym))); | |
2596 | break; | |
2597 | case LOC_LOCAL: | |
2598 | printf_filtered ("a local variable at frame offset %s", | |
2599 | plongest (SYMBOL_VALUE (sym))); | |
2600 | break; | |
2601 | case LOC_REF_ARG: | |
2602 | printf_filtered ("a reference argument at offset %s", | |
2603 | plongest (SYMBOL_VALUE (sym))); | |
2604 | break; | |
2605 | case LOC_REGPARM_ADDR: | |
2606 | /* Note comment at LOC_REGISTER. */ | |
2607 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, | |
2608 | gdbarch); | |
2609 | printf_filtered ("the address of an argument, in register $%s", | |
2610 | gdbarch_register_name (gdbarch, regno)); | |
2611 | break; | |
2612 | case LOC_TYPEDEF: | |
2613 | printf_filtered ("a typedef.\n"); | |
2614 | continue; | |
2615 | case LOC_LABEL: | |
2616 | printf_filtered ("a label at address "); | |
2617 | printf_filtered ("%s", paddress (gdbarch, | |
2618 | SYMBOL_VALUE_ADDRESS (sym))); | |
2619 | break; | |
2620 | case LOC_BLOCK: | |
2621 | printf_filtered ("a function at address "); | |
5af949e3 | 2622 | printf_filtered ("%s", |
2b1ffcfd | 2623 | paddress (gdbarch, BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)))); |
24d6c2a0 TT |
2624 | break; |
2625 | case LOC_UNRESOLVED: | |
987012b8 | 2626 | msym = lookup_minimal_symbol (sym->linkage_name (), |
24d6c2a0 | 2627 | NULL, NULL); |
3b7344d5 | 2628 | if (msym.minsym == NULL) |
24d6c2a0 TT |
2629 | printf_filtered ("Unresolved Static"); |
2630 | else | |
2631 | { | |
2632 | printf_filtered ("static storage at address "); | |
2633 | printf_filtered ("%s", | |
2634 | paddress (gdbarch, | |
77e371c0 | 2635 | BMSYMBOL_VALUE_ADDRESS (msym))); |
24d6c2a0 TT |
2636 | } |
2637 | break; | |
2638 | case LOC_OPTIMIZED_OUT: | |
2639 | printf_filtered ("optimized out.\n"); | |
2640 | continue; | |
2641 | case LOC_COMPUTED: | |
2642 | gdb_assert_not_reached (_("LOC_COMPUTED variable missing a method")); | |
c5aa993b | 2643 | } |
c5aa993b | 2644 | } |
c906108c | 2645 | if (SYMBOL_TYPE (sym)) |
cc1defb1 KS |
2646 | { |
2647 | struct type *t = check_typedef (SYMBOL_TYPE (sym)); | |
2648 | ||
2649 | printf_filtered (", length %s.\n", pulongest (TYPE_LENGTH (t))); | |
2650 | } | |
c906108c SS |
2651 | } |
2652 | if (BLOCK_FUNCTION (block)) | |
2653 | break; | |
2654 | else | |
2655 | block = BLOCK_SUPERBLOCK (block); | |
2656 | } | |
2657 | if (count <= 0) | |
2658 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2659 | save_args); | |
2660 | } | |
2661 | ||
afd02f27 PA |
2662 | /* Helper for trace_dump_command. Dump the action list starting at |
2663 | ACTION. STEPPING_ACTIONS is true if we're iterating over the | |
2664 | actions of the body of a while-stepping action. STEPPING_FRAME is | |
2665 | set if the current traceframe was determined to be a while-stepping | |
2666 | traceframe. */ | |
2667 | ||
c906108c | 2668 | static void |
afd02f27 PA |
2669 | trace_dump_actions (struct command_line *action, |
2670 | int stepping_actions, int stepping_frame, | |
2671 | int from_tty) | |
c906108c | 2672 | { |
6f937416 | 2673 | const char *action_exp, *next_comma; |
c906108c | 2674 | |
afd02f27 | 2675 | for (; action != NULL; action = action->next) |
c906108c SS |
2676 | { |
2677 | struct cmd_list_element *cmd; | |
2678 | ||
c378eb4e | 2679 | QUIT; /* Allow user to bail out with ^C. */ |
a7bdde9e | 2680 | action_exp = action->line; |
f1735a53 | 2681 | action_exp = skip_spaces (action_exp); |
c906108c SS |
2682 | |
2683 | /* The collection actions to be done while stepping are | |
dda83cd7 | 2684 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2685 | |
2686 | if (*action_exp == '#') /* comment line */ | |
2687 | continue; | |
2688 | ||
cf00cd6f | 2689 | cmd = lookup_cmd (&action_exp, cmdlist, "", NULL, -1, 1); |
c906108c | 2690 | if (cmd == 0) |
8a3fe4f8 | 2691 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2692 | |
bbaca940 | 2693 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
afd02f27 | 2694 | { |
12973681 TT |
2695 | gdb_assert (action->body_list_1 == nullptr); |
2696 | trace_dump_actions (action->body_list_0.get (), | |
2697 | 1, stepping_frame, from_tty); | |
afd02f27 | 2698 | } |
bbaca940 | 2699 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2700 | { |
2701 | /* Display the collected data. | |
d183932d MS |
2702 | For the trap frame, display only what was collected at |
2703 | the trap. Likewise for stepping frames, display only | |
2704 | what was collected while stepping. This means that the | |
2705 | two boolean variables, STEPPING_FRAME and | |
2706 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2707 | if (stepping_frame == stepping_actions) |
2708 | { | |
92bc6a20 | 2709 | int trace_string = 0; |
6f937416 | 2710 | |
3065dfb6 | 2711 | if (*action_exp == '/') |
92bc6a20 | 2712 | action_exp = decode_agent_options (action_exp, &trace_string); |
3065dfb6 | 2713 | |
c5aa993b | 2714 | do |
c378eb4e MS |
2715 | { /* Repeat over a comma-separated list. */ |
2716 | QUIT; /* Allow user to bail out with ^C. */ | |
c5aa993b JM |
2717 | if (*action_exp == ',') |
2718 | action_exp++; | |
f1735a53 | 2719 | action_exp = skip_spaces (action_exp); |
c5aa993b JM |
2720 | |
2721 | next_comma = strchr (action_exp, ','); | |
2722 | ||
2723 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2724 | registers_info (NULL, from_tty); | |
6710bf39 SS |
2725 | else if (0 == strncasecmp (action_exp, "$_ret", 5)) |
2726 | ; | |
c5aa993b | 2727 | else if (0 == strncasecmp (action_exp, "$loc", 4)) |
11db9430 | 2728 | info_locals_command (NULL, from_tty); |
c5aa993b | 2729 | else if (0 == strncasecmp (action_exp, "$arg", 4)) |
11db9430 | 2730 | info_args_command (NULL, from_tty); |
c5aa993b JM |
2731 | else |
2732 | { /* variable */ | |
15b6611c TT |
2733 | std::string contents; |
2734 | const char *exp = action_exp; | |
6f937416 | 2735 | if (next_comma != NULL) |
c5aa993b | 2736 | { |
6f937416 | 2737 | size_t len = next_comma - action_exp; |
15b6611c TT |
2738 | contents = std::string (action_exp, len); |
2739 | exp = contents.c_str (); | |
6f937416 | 2740 | } |
6f937416 | 2741 | |
15b6611c | 2742 | printf_filtered ("%s = ", exp); |
122b53ea | 2743 | output_command (exp, from_tty); |
c5aa993b JM |
2744 | printf_filtered ("\n"); |
2745 | } | |
c5aa993b JM |
2746 | action_exp = next_comma; |
2747 | } | |
2748 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2749 | } |
2750 | } | |
2751 | } | |
afd02f27 PA |
2752 | } |
2753 | ||
ddacd3c8 YQ |
2754 | /* Return bp_location of the tracepoint associated with the current |
2755 | traceframe. Set *STEPPING_FRAME_P to 1 if the current traceframe | |
2756 | is a stepping traceframe. */ | |
2757 | ||
dc673c81 | 2758 | struct bp_location * |
ddacd3c8 YQ |
2759 | get_traceframe_location (int *stepping_frame_p) |
2760 | { | |
2761 | struct tracepoint *t; | |
ddacd3c8 YQ |
2762 | struct regcache *regcache; |
2763 | ||
2764 | if (tracepoint_number == -1) | |
2765 | error (_("No current trace frame.")); | |
2766 | ||
2767 | t = get_tracepoint (tracepoint_number); | |
2768 | ||
2769 | if (t == NULL) | |
2770 | error (_("No known tracepoint matches 'current' tracepoint #%d."), | |
2771 | tracepoint_number); | |
2772 | ||
2773 | /* The current frame is a trap frame if the frame PC is equal to the | |
2774 | tracepoint PC. If not, then the current frame was collected | |
2775 | during single-stepping. */ | |
2776 | regcache = get_current_regcache (); | |
2777 | ||
2778 | /* If the traceframe's address matches any of the tracepoint's | |
2779 | locations, assume it is a direct hit rather than a while-stepping | |
2780 | frame. (FIXME this is not reliable, should record each frame's | |
2781 | type.) */ | |
40cb8ca5 | 2782 | for (bp_location *tloc : t->locations ()) |
ddacd3c8 YQ |
2783 | if (tloc->address == regcache_read_pc (regcache)) |
2784 | { | |
2785 | *stepping_frame_p = 0; | |
2786 | return tloc; | |
2787 | } | |
2788 | ||
2789 | /* If this is a stepping frame, we don't know which location | |
2790 | triggered. The first is as good (or bad) a guess as any... */ | |
2791 | *stepping_frame_p = 1; | |
c1fc2657 | 2792 | return t->loc; |
ddacd3c8 YQ |
2793 | } |
2794 | ||
12973681 | 2795 | /* Return the default collect actions of a tracepoint T. */ |
3ca73e0c | 2796 | |
12973681 TT |
2797 | static counted_command_line |
2798 | all_tracepoint_actions (struct breakpoint *t) | |
3ca73e0c | 2799 | { |
12973681 | 2800 | counted_command_line actions (nullptr, command_lines_deleter ()); |
3ca73e0c YQ |
2801 | |
2802 | /* If there are default expressions to collect, make up a collect | |
2803 | action and prepend to the action list to encode. Note that since | |
2804 | validation is per-tracepoint (local var "xyz" might be valid for | |
2805 | one tracepoint and not another, etc), we make up the action on | |
2806 | the fly, and don't cache it. */ | |
2807 | if (*default_collect) | |
2808 | { | |
12973681 TT |
2809 | gdb::unique_xmalloc_ptr<char> default_collect_line |
2810 | (xstrprintf ("collect %s", default_collect)); | |
3ca73e0c | 2811 | |
12973681 TT |
2812 | validate_actionline (default_collect_line.get (), t); |
2813 | actions.reset (new struct command_line (simple_control, | |
2814 | default_collect_line.release ()), | |
2815 | command_lines_deleter ()); | |
3ca73e0c YQ |
2816 | } |
2817 | ||
2818 | return actions; | |
2819 | } | |
2820 | ||
afd02f27 PA |
2821 | /* The tdump command. */ |
2822 | ||
2823 | static void | |
0b39b52e | 2824 | tdump_command (const char *args, int from_tty) |
afd02f27 | 2825 | { |
afd02f27 PA |
2826 | int stepping_frame = 0; |
2827 | struct bp_location *loc; | |
2828 | ||
ddacd3c8 YQ |
2829 | /* This throws an error is not inspecting a trace frame. */ |
2830 | loc = get_traceframe_location (&stepping_frame); | |
afd02f27 PA |
2831 | |
2832 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", | |
2833 | tracepoint_number, traceframe_number); | |
2834 | ||
de74e63a YQ |
2835 | /* This command only makes sense for the current frame, not the |
2836 | selected frame. */ | |
5ed8105e PA |
2837 | scoped_restore_current_thread restore_thread; |
2838 | ||
de74e63a YQ |
2839 | select_frame (get_current_frame ()); |
2840 | ||
12973681 | 2841 | counted_command_line actions = all_tracepoint_actions (loc->owner); |
2114d44c | 2842 | |
12973681 TT |
2843 | trace_dump_actions (actions.get (), 0, stepping_frame, from_tty); |
2844 | trace_dump_actions (breakpoint_commands (loc->owner), 0, stepping_frame, | |
2845 | from_tty); | |
c906108c SS |
2846 | } |
2847 | ||
409873ef SS |
2848 | /* Encode a piece of a tracepoint's source-level definition in a form |
2849 | that is suitable for both protocol and saving in files. */ | |
2850 | /* This version does not do multiple encodes for long strings; it should | |
2851 | return an offset to the next piece to encode. FIXME */ | |
2852 | ||
a121b7c1 | 2853 | int |
409873ef | 2854 | encode_source_string (int tpnum, ULONGEST addr, |
a121b7c1 PA |
2855 | const char *srctype, const char *src, |
2856 | char *buf, int buf_size) | |
409873ef SS |
2857 | { |
2858 | if (80 + strlen (srctype) > buf_size) | |
2859 | error (_("Buffer too small for source encoding")); | |
2860 | sprintf (buf, "%x:%s:%s:%x:%x:", | |
3e43a32a MS |
2861 | tpnum, phex_nz (addr, sizeof (addr)), |
2862 | srctype, 0, (int) strlen (src)); | |
409873ef SS |
2863 | if (strlen (buf) + strlen (src) * 2 >= buf_size) |
2864 | error (_("Source string too long for buffer")); | |
9f1b45b0 | 2865 | bin2hex ((gdb_byte *) src, buf + strlen (buf), strlen (src)); |
409873ef SS |
2866 | return -1; |
2867 | } | |
2868 | ||
d5551862 SS |
2869 | /* Tell the target what to do with an ongoing tracing run if GDB |
2870 | disconnects for some reason. */ | |
2871 | ||
d5551862 | 2872 | static void |
eb4c3f4a | 2873 | set_disconnected_tracing (const char *args, int from_tty, |
d5551862 SS |
2874 | struct cmd_list_element *c) |
2875 | { | |
f196051f | 2876 | target_set_disconnected_tracing (disconnected_tracing); |
d5551862 SS |
2877 | } |
2878 | ||
4daf5ac0 | 2879 | static void |
eb4c3f4a | 2880 | set_circular_trace_buffer (const char *args, int from_tty, |
4daf5ac0 SS |
2881 | struct cmd_list_element *c) |
2882 | { | |
2883 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2884 | } | |
2885 | ||
f6f899bf | 2886 | static void |
eb4c3f4a | 2887 | set_trace_buffer_size (const char *args, int from_tty, |
f6f899bf HAQ |
2888 | struct cmd_list_element *c) |
2889 | { | |
2890 | target_set_trace_buffer_size (trace_buffer_size); | |
2891 | } | |
2892 | ||
f196051f | 2893 | static void |
eb4c3f4a | 2894 | set_trace_user (const char *args, int from_tty, |
f196051f SS |
2895 | struct cmd_list_element *c) |
2896 | { | |
2897 | int ret; | |
2898 | ||
2899 | ret = target_set_trace_notes (trace_user, NULL, NULL); | |
2900 | ||
2901 | if (!ret) | |
43011e52 | 2902 | warning (_("Target does not support trace notes, user ignored")); |
f196051f SS |
2903 | } |
2904 | ||
2905 | static void | |
eb4c3f4a | 2906 | set_trace_notes (const char *args, int from_tty, |
f196051f SS |
2907 | struct cmd_list_element *c) |
2908 | { | |
2909 | int ret; | |
2910 | ||
2911 | ret = target_set_trace_notes (NULL, trace_notes, NULL); | |
2912 | ||
2913 | if (!ret) | |
43011e52 | 2914 | warning (_("Target does not support trace notes, note ignored")); |
f196051f SS |
2915 | } |
2916 | ||
2917 | static void | |
eb4c3f4a | 2918 | set_trace_stop_notes (const char *args, int from_tty, |
f196051f SS |
2919 | struct cmd_list_element *c) |
2920 | { | |
2921 | int ret; | |
2922 | ||
2923 | ret = target_set_trace_notes (NULL, NULL, trace_stop_notes); | |
2924 | ||
2925 | if (!ret) | |
43011e52 | 2926 | warning (_("Target does not support trace notes, stop note ignored")); |
f196051f SS |
2927 | } |
2928 | ||
c906108c SS |
2929 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2930 | * Return a pointer to the last char put in buf (null) | |
2931 | * "stolen" from sparc-stub.c | |
2932 | */ | |
2933 | ||
c5aa993b | 2934 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2935 | |
47b667de AC |
2936 | static char * |
2937 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2938 | { |
47b667de | 2939 | gdb_byte ch; |
c906108c SS |
2940 | |
2941 | while (count-- > 0) | |
2942 | { | |
2943 | ch = *mem++; | |
2944 | ||
2945 | *buf++ = hexchars[ch >> 4]; | |
2946 | *buf++ = hexchars[ch & 0xf]; | |
2947 | } | |
2948 | ||
2949 | *buf = 0; | |
2950 | ||
2951 | return buf; | |
2952 | } | |
2953 | ||
c5aa993b | 2954 | int |
fba45db2 | 2955 | get_traceframe_number (void) |
c906108c | 2956 | { |
c5aa993b | 2957 | return traceframe_number; |
c906108c SS |
2958 | } |
2959 | ||
393fd4c3 YQ |
2960 | int |
2961 | get_tracepoint_number (void) | |
2962 | { | |
2963 | return tracepoint_number; | |
2964 | } | |
2965 | ||
06cd862c PA |
2966 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2967 | if NUM is already current. */ | |
2968 | ||
2969 | void | |
e6e4e701 | 2970 | set_current_traceframe (int num) |
06cd862c PA |
2971 | { |
2972 | int newnum; | |
2973 | ||
2974 | if (traceframe_number == num) | |
2975 | { | |
2976 | /* Nothing to do. */ | |
2977 | return; | |
2978 | } | |
2979 | ||
2980 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2981 | ||
2982 | if (newnum != num) | |
2983 | warning (_("could not change traceframe")); | |
2984 | ||
8d735b87 | 2985 | set_traceframe_num (newnum); |
06cd862c PA |
2986 | |
2987 | /* Changing the traceframe changes our view of registers and of the | |
2988 | frame chain. */ | |
2989 | registers_changed (); | |
b3b9301e PA |
2990 | |
2991 | clear_traceframe_info (); | |
06cd862c PA |
2992 | } |
2993 | ||
6f14adc5 SM |
2994 | scoped_restore_current_traceframe::scoped_restore_current_traceframe () |
2995 | : m_traceframe_number (traceframe_number) | |
2996 | {} | |
00bf0b85 SS |
2997 | |
2998 | /* Given a number and address, return an uploaded tracepoint with that | |
2999 | number, creating if necessary. */ | |
3000 | ||
3001 | struct uploaded_tp * | |
3002 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
3003 | { | |
3004 | struct uploaded_tp *utp; | |
3005 | ||
3006 | for (utp = *utpp; utp; utp = utp->next) | |
3007 | if (utp->number == num && utp->addr == addr) | |
3008 | return utp; | |
8d749320 | 3009 | |
a18ba4e4 | 3010 | utp = new uploaded_tp; |
00bf0b85 SS |
3011 | utp->number = num; |
3012 | utp->addr = addr; | |
3013 | utp->next = *utpp; | |
3014 | *utpp = utp; | |
8d749320 | 3015 | |
00bf0b85 SS |
3016 | return utp; |
3017 | } | |
3018 | ||
7951c4eb | 3019 | void |
00bf0b85 SS |
3020 | free_uploaded_tps (struct uploaded_tp **utpp) |
3021 | { | |
3022 | struct uploaded_tp *next_one; | |
3023 | ||
3024 | while (*utpp) | |
3025 | { | |
3026 | next_one = (*utpp)->next; | |
a18ba4e4 | 3027 | delete *utpp; |
00bf0b85 SS |
3028 | *utpp = next_one; |
3029 | } | |
3030 | } | |
3031 | ||
3032 | /* Given a number and address, return an uploaded tracepoint with that | |
3033 | number, creating if necessary. */ | |
3034 | ||
393fd4c3 | 3035 | struct uploaded_tsv * |
00bf0b85 SS |
3036 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) |
3037 | { | |
3038 | struct uploaded_tsv *utsv; | |
3039 | ||
3040 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
3041 | if (utsv->number == num) | |
3042 | return utsv; | |
8d749320 SM |
3043 | |
3044 | utsv = XCNEW (struct uploaded_tsv); | |
00bf0b85 SS |
3045 | utsv->number = num; |
3046 | utsv->next = *utsvp; | |
3047 | *utsvp = utsv; | |
8d749320 | 3048 | |
00bf0b85 SS |
3049 | return utsv; |
3050 | } | |
3051 | ||
7951c4eb | 3052 | void |
00bf0b85 SS |
3053 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) |
3054 | { | |
3055 | struct uploaded_tsv *next_one; | |
3056 | ||
3057 | while (*utsvp) | |
3058 | { | |
3059 | next_one = (*utsvp)->next; | |
3060 | xfree (*utsvp); | |
3061 | *utsvp = next_one; | |
3062 | } | |
3063 | } | |
3064 | ||
4e5c165d HZ |
3065 | /* FIXME this function is heuristic and will miss the cases where the |
3066 | conditional is semantically identical but differs in whitespace, | |
3067 | such as "x == 0" vs "x==0". */ | |
3068 | ||
3069 | static int | |
3070 | cond_string_is_same (char *str1, char *str2) | |
3071 | { | |
3072 | if (str1 == NULL || str2 == NULL) | |
3073 | return (str1 == str2); | |
3074 | ||
3075 | return (strcmp (str1, str2) == 0); | |
3076 | } | |
3077 | ||
00bf0b85 SS |
3078 | /* Look for an existing tracepoint that seems similar enough to the |
3079 | uploaded one. Enablement isn't compared, because the user can | |
3080 | toggle that freely, and may have done so in anticipation of the | |
1e4d1764 | 3081 | next trace run. Return the location of matched tracepoint. */ |
00bf0b85 | 3082 | |
70221824 | 3083 | static struct bp_location * |
1e4d1764 | 3084 | find_matching_tracepoint_location (struct uploaded_tp *utp) |
00bf0b85 | 3085 | { |
00bf0b85 SS |
3086 | struct bp_location *loc; |
3087 | ||
f51e0e20 | 3088 | for (breakpoint *b : all_tracepoints ()) |
00bf0b85 | 3089 | { |
d9b3f62e PA |
3090 | struct tracepoint *t = (struct tracepoint *) b; |
3091 | ||
3092 | if (b->type == utp->type | |
00bf0b85 SS |
3093 | && t->step_count == utp->step |
3094 | && t->pass_count == utp->pass | |
67aa1f3c PA |
3095 | && cond_string_is_same (t->cond_string, |
3096 | utp->cond_string.get ()) | |
4e5c165d | 3097 | /* FIXME also test actions. */ |
00bf0b85 SS |
3098 | ) |
3099 | { | |
3100 | /* Scan the locations for an address match. */ | |
d9b3f62e | 3101 | for (loc = b->loc; loc; loc = loc->next) |
00bf0b85 SS |
3102 | { |
3103 | if (loc->address == utp->addr) | |
1e4d1764 | 3104 | return loc; |
00bf0b85 SS |
3105 | } |
3106 | } | |
3107 | } | |
3108 | return NULL; | |
3109 | } | |
3110 | ||
3111 | /* Given a list of tracepoints uploaded from a target, attempt to | |
3112 | match them up with existing tracepoints, and create new ones if not | |
3113 | found. */ | |
3114 | ||
3115 | void | |
3116 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
3117 | { | |
3118 | struct uploaded_tp *utp; | |
f2a8bc8a | 3119 | /* A set of tracepoints which are modified. */ |
f51e0e20 | 3120 | std::vector<breakpoint *> modified_tp; |
00bf0b85 SS |
3121 | |
3122 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
3123 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
3124 | { | |
1e4d1764 YQ |
3125 | struct bp_location *loc; |
3126 | struct tracepoint *t; | |
3127 | ||
3128 | loc = find_matching_tracepoint_location (utp); | |
3129 | if (loc) | |
3130 | { | |
f2a8bc8a YQ |
3131 | int found = 0; |
3132 | ||
1e4d1764 YQ |
3133 | /* Mark this location as already inserted. */ |
3134 | loc->inserted = 1; | |
3135 | t = (struct tracepoint *) loc->owner; | |
3136 | printf_filtered (_("Assuming tracepoint %d is same " | |
3137 | "as target's tracepoint %d at %s.\n"), | |
3138 | loc->owner->number, utp->number, | |
3139 | paddress (loc->gdbarch, utp->addr)); | |
f2a8bc8a YQ |
3140 | |
3141 | /* The tracepoint LOC->owner was modified (the location LOC | |
3142 | was marked as inserted in the target). Save it in | |
3143 | MODIFIED_TP if not there yet. The 'breakpoint-modified' | |
3144 | observers will be notified later once for each tracepoint | |
3145 | saved in MODIFIED_TP. */ | |
f51e0e20 | 3146 | for (breakpoint *b : modified_tp) |
f2a8bc8a YQ |
3147 | if (b == loc->owner) |
3148 | { | |
3149 | found = 1; | |
3150 | break; | |
3151 | } | |
3152 | if (!found) | |
f51e0e20 | 3153 | modified_tp.push_back (loc->owner); |
1e4d1764 | 3154 | } |
00bf0b85 SS |
3155 | else |
3156 | { | |
3157 | t = create_tracepoint_from_upload (utp); | |
3158 | if (t) | |
3e43a32a MS |
3159 | printf_filtered (_("Created tracepoint %d for " |
3160 | "target's tracepoint %d at %s.\n"), | |
c1fc2657 | 3161 | t->number, utp->number, |
3e43a32a | 3162 | paddress (get_current_arch (), utp->addr)); |
00bf0b85 | 3163 | else |
3e43a32a MS |
3164 | printf_filtered (_("Failed to create tracepoint for target's " |
3165 | "tracepoint %d at %s, skipping it.\n"), | |
3166 | utp->number, | |
3167 | paddress (get_current_arch (), utp->addr)); | |
00bf0b85 SS |
3168 | } |
3169 | /* Whether found or created, record the number used by the | |
3170 | target, to help with mapping target tracepoints back to their | |
3171 | counterparts here. */ | |
3172 | if (t) | |
3173 | t->number_on_target = utp->number; | |
3174 | } | |
3175 | ||
f2a8bc8a YQ |
3176 | /* Notify 'breakpoint-modified' observer that at least one of B's |
3177 | locations was changed. */ | |
f51e0e20 | 3178 | for (breakpoint *b : modified_tp) |
76727919 | 3179 | gdb::observers::breakpoint_modified.notify (b); |
f2a8bc8a | 3180 | |
00bf0b85 SS |
3181 | free_uploaded_tps (uploaded_tps); |
3182 | } | |
3183 | ||
3184 | /* Trace state variables don't have much to identify them beyond their | |
3185 | name, so just use that to detect matches. */ | |
3186 | ||
70221824 | 3187 | static struct trace_state_variable * |
00bf0b85 SS |
3188 | find_matching_tsv (struct uploaded_tsv *utsv) |
3189 | { | |
3190 | if (!utsv->name) | |
3191 | return NULL; | |
3192 | ||
3193 | return find_trace_state_variable (utsv->name); | |
3194 | } | |
3195 | ||
70221824 | 3196 | static struct trace_state_variable * |
00bf0b85 SS |
3197 | create_tsv_from_upload (struct uploaded_tsv *utsv) |
3198 | { | |
3199 | const char *namebase; | |
8abcee91 | 3200 | std::string buf; |
00bf0b85 SS |
3201 | int try_num = 0; |
3202 | struct trace_state_variable *tsv; | |
3203 | ||
3204 | if (utsv->name) | |
3205 | { | |
3206 | namebase = utsv->name; | |
8abcee91 | 3207 | buf = namebase; |
00bf0b85 SS |
3208 | } |
3209 | else | |
3210 | { | |
3211 | namebase = "__tsv"; | |
8abcee91 | 3212 | buf = string_printf ("%s_%d", namebase, try_num++); |
00bf0b85 SS |
3213 | } |
3214 | ||
3215 | /* Fish for a name that is not in use. */ | |
c378eb4e | 3216 | /* (should check against all internal vars?) */ |
8abcee91 TT |
3217 | while (find_trace_state_variable (buf.c_str ())) |
3218 | buf = string_printf ("%s_%d", namebase, try_num++); | |
00bf0b85 SS |
3219 | |
3220 | /* We have an available name, create the variable. */ | |
8abcee91 | 3221 | tsv = create_trace_state_variable (buf.c_str ()); |
00bf0b85 SS |
3222 | tsv->initial_value = utsv->initial_value; |
3223 | tsv->builtin = utsv->builtin; | |
3224 | ||
76727919 | 3225 | gdb::observers::tsv_created.notify (tsv); |
bb25a15c | 3226 | |
00bf0b85 SS |
3227 | return tsv; |
3228 | } | |
3229 | ||
3230 | /* Given a list of uploaded trace state variables, try to match them | |
3231 | up with existing variables, or create additional ones. */ | |
3232 | ||
3233 | void | |
3234 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
3235 | { | |
00bf0b85 | 3236 | struct uploaded_tsv *utsv; |
00bf0b85 SS |
3237 | int highest; |
3238 | ||
3239 | /* Most likely some numbers will have to be reassigned as part of | |
3240 | the merge, so clear them all in anticipation. */ | |
c252925c SM |
3241 | for (trace_state_variable &tsv : tvariables) |
3242 | tsv.number = 0; | |
00bf0b85 SS |
3243 | |
3244 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
3245 | { | |
b926417a | 3246 | struct trace_state_variable *tsv = find_matching_tsv (utsv); |
00bf0b85 | 3247 | if (tsv) |
417b5110 DJ |
3248 | { |
3249 | if (info_verbose) | |
3e43a32a MS |
3250 | printf_filtered (_("Assuming trace state variable $%s " |
3251 | "is same as target's variable %d.\n"), | |
c252925c | 3252 | tsv->name.c_str (), utsv->number); |
417b5110 | 3253 | } |
00bf0b85 SS |
3254 | else |
3255 | { | |
3256 | tsv = create_tsv_from_upload (utsv); | |
417b5110 | 3257 | if (info_verbose) |
3e43a32a MS |
3258 | printf_filtered (_("Created trace state variable " |
3259 | "$%s for target's variable %d.\n"), | |
c252925c | 3260 | tsv->name.c_str (), utsv->number); |
00bf0b85 SS |
3261 | } |
3262 | /* Give precedence to numberings that come from the target. */ | |
3263 | if (tsv) | |
3264 | tsv->number = utsv->number; | |
3265 | } | |
3266 | ||
3267 | /* Renumber everything that didn't get a target-assigned number. */ | |
3268 | highest = 0; | |
c252925c SM |
3269 | for (const trace_state_variable &tsv : tvariables) |
3270 | highest = std::max (tsv.number, highest); | |
00bf0b85 SS |
3271 | |
3272 | ++highest; | |
c252925c SM |
3273 | for (trace_state_variable &tsv : tvariables) |
3274 | if (tsv.number == 0) | |
3275 | tsv.number = highest++; | |
00bf0b85 SS |
3276 | |
3277 | free_uploaded_tsvs (uploaded_tsvs); | |
3278 | } | |
3279 | ||
00bf0b85 SS |
3280 | /* Parse the part of trace status syntax that is shared between |
3281 | the remote protocol and the trace file reader. */ | |
3282 | ||
00bf0b85 | 3283 | void |
256642e8 | 3284 | parse_trace_status (const char *line, struct trace_status *ts) |
00bf0b85 | 3285 | { |
256642e8 | 3286 | const char *p = line, *p1, *p2, *p3, *p_temp; |
f196051f | 3287 | int end; |
00bf0b85 SS |
3288 | ULONGEST val; |
3289 | ||
3290 | ts->running_known = 1; | |
3291 | ts->running = (*p++ == '1'); | |
3292 | ts->stop_reason = trace_stop_reason_unknown; | |
f196051f SS |
3293 | xfree (ts->stop_desc); |
3294 | ts->stop_desc = NULL; | |
4daf5ac0 SS |
3295 | ts->traceframe_count = -1; |
3296 | ts->traceframes_created = -1; | |
3297 | ts->buffer_free = -1; | |
3298 | ts->buffer_size = -1; | |
33da3f1c SS |
3299 | ts->disconnected_tracing = 0; |
3300 | ts->circular_buffer = 0; | |
f196051f SS |
3301 | xfree (ts->user_name); |
3302 | ts->user_name = NULL; | |
3303 | xfree (ts->notes); | |
3304 | ts->notes = NULL; | |
3305 | ts->start_time = ts->stop_time = 0; | |
4daf5ac0 | 3306 | |
00bf0b85 SS |
3307 | while (*p++) |
3308 | { | |
3309 | p1 = strchr (p, ':'); | |
3310 | if (p1 == NULL) | |
3311 | error (_("Malformed trace status, at %s\n\ | |
3312 | Status line: '%s'\n"), p, line); | |
f196051f SS |
3313 | p3 = strchr (p, ';'); |
3314 | if (p3 == NULL) | |
3315 | p3 = p + strlen (p); | |
00bf0b85 SS |
3316 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) |
3317 | { | |
3318 | p = unpack_varlen_hex (++p1, &val); | |
3319 | ts->stop_reason = trace_buffer_full; | |
3320 | } | |
3321 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3322 | { | |
3323 | p = unpack_varlen_hex (++p1, &val); | |
3324 | ts->stop_reason = trace_never_run; | |
3325 | } | |
3e43a32a MS |
3326 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], |
3327 | p1 - p) == 0) | |
00bf0b85 SS |
3328 | { |
3329 | p = unpack_varlen_hex (++p1, &val); | |
3330 | ts->stop_reason = tracepoint_passcount; | |
3331 | ts->stopping_tracepoint = val; | |
3332 | } | |
e5a873b7 | 3333 | else if (strncmp (p, stop_reason_names[trace_stop_command], p1 - p) == 0) |
00bf0b85 | 3334 | { |
f196051f SS |
3335 | p2 = strchr (++p1, ':'); |
3336 | if (!p2 || p2 > p3) | |
3337 | { | |
3338 | /*older style*/ | |
3339 | p2 = p1; | |
3340 | } | |
3341 | else if (p2 != p1) | |
3342 | { | |
224c3ddb | 3343 | ts->stop_desc = (char *) xmalloc (strlen (line)); |
bc20a4af | 3344 | end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2); |
f196051f SS |
3345 | ts->stop_desc[end] = '\0'; |
3346 | } | |
3347 | else | |
3348 | ts->stop_desc = xstrdup (""); | |
3349 | ||
3350 | p = unpack_varlen_hex (++p2, &val); | |
e5a873b7 | 3351 | ts->stop_reason = trace_stop_command; |
00bf0b85 | 3352 | } |
33da3f1c SS |
3353 | else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0) |
3354 | { | |
3355 | p = unpack_varlen_hex (++p1, &val); | |
3356 | ts->stop_reason = trace_disconnected; | |
3357 | } | |
6c28cbf2 SS |
3358 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3359 | { | |
3360 | p2 = strchr (++p1, ':'); | |
3361 | if (p2 != p1) | |
3362 | { | |
224c3ddb | 3363 | ts->stop_desc = (char *) xmalloc ((p2 - p1) / 2 + 1); |
bc20a4af | 3364 | end = hex2bin (p1, (gdb_byte *) ts->stop_desc, (p2 - p1) / 2); |
f196051f | 3365 | ts->stop_desc[end] = '\0'; |
6c28cbf2 | 3366 | } |
a609a0c8 | 3367 | else |
f196051f | 3368 | ts->stop_desc = xstrdup (""); |
a609a0c8 | 3369 | |
6c28cbf2 SS |
3370 | p = unpack_varlen_hex (++p2, &val); |
3371 | ts->stopping_tracepoint = val; | |
3372 | ts->stop_reason = tracepoint_error; | |
3373 | } | |
4daf5ac0 | 3374 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3375 | { |
3376 | p = unpack_varlen_hex (++p1, &val); | |
3377 | ts->traceframe_count = val; | |
3378 | } | |
4daf5ac0 SS |
3379 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3380 | { | |
3381 | p = unpack_varlen_hex (++p1, &val); | |
3382 | ts->traceframes_created = val; | |
3383 | } | |
3384 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3385 | { |
3386 | p = unpack_varlen_hex (++p1, &val); | |
3387 | ts->buffer_free = val; | |
3388 | } | |
4daf5ac0 SS |
3389 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3390 | { | |
3391 | p = unpack_varlen_hex (++p1, &val); | |
3392 | ts->buffer_size = val; | |
3393 | } | |
33da3f1c SS |
3394 | else if (strncmp (p, "disconn", p1 - p) == 0) |
3395 | { | |
3396 | p = unpack_varlen_hex (++p1, &val); | |
3397 | ts->disconnected_tracing = val; | |
3398 | } | |
3399 | else if (strncmp (p, "circular", p1 - p) == 0) | |
3400 | { | |
3401 | p = unpack_varlen_hex (++p1, &val); | |
3402 | ts->circular_buffer = val; | |
3403 | } | |
f196051f SS |
3404 | else if (strncmp (p, "starttime", p1 - p) == 0) |
3405 | { | |
3406 | p = unpack_varlen_hex (++p1, &val); | |
3407 | ts->start_time = val; | |
3408 | } | |
3409 | else if (strncmp (p, "stoptime", p1 - p) == 0) | |
3410 | { | |
3411 | p = unpack_varlen_hex (++p1, &val); | |
3412 | ts->stop_time = val; | |
3413 | } | |
3414 | else if (strncmp (p, "username", p1 - p) == 0) | |
3415 | { | |
3416 | ++p1; | |
224c3ddb | 3417 | ts->user_name = (char *) xmalloc (strlen (p) / 2); |
bc20a4af | 3418 | end = hex2bin (p1, (gdb_byte *) ts->user_name, (p3 - p1) / 2); |
f196051f SS |
3419 | ts->user_name[end] = '\0'; |
3420 | p = p3; | |
3421 | } | |
3422 | else if (strncmp (p, "notes", p1 - p) == 0) | |
3423 | { | |
3424 | ++p1; | |
224c3ddb | 3425 | ts->notes = (char *) xmalloc (strlen (p) / 2); |
bc20a4af | 3426 | end = hex2bin (p1, (gdb_byte *) ts->notes, (p3 - p1) / 2); |
f196051f SS |
3427 | ts->notes[end] = '\0'; |
3428 | p = p3; | |
3429 | } | |
00bf0b85 SS |
3430 | else |
3431 | { | |
3432 | /* Silently skip unknown optional info. */ | |
3433 | p_temp = strchr (p1 + 1, ';'); | |
3434 | if (p_temp) | |
3435 | p = p_temp; | |
3436 | else | |
3437 | /* Must be at the end. */ | |
3438 | break; | |
3439 | } | |
3440 | } | |
3441 | } | |
3442 | ||
f196051f | 3443 | void |
256642e8 | 3444 | parse_tracepoint_status (const char *p, struct breakpoint *bp, |
f196051f SS |
3445 | struct uploaded_tp *utp) |
3446 | { | |
3447 | ULONGEST uval; | |
3448 | struct tracepoint *tp = (struct tracepoint *) bp; | |
3449 | ||
3450 | p = unpack_varlen_hex (p, &uval); | |
3451 | if (tp) | |
c1fc2657 | 3452 | tp->hit_count += uval; |
f196051f SS |
3453 | else |
3454 | utp->hit_count += uval; | |
3455 | p = unpack_varlen_hex (p + 1, &uval); | |
3456 | if (tp) | |
3457 | tp->traceframe_usage += uval; | |
3458 | else | |
3459 | utp->traceframe_usage += uval; | |
3460 | /* Ignore any extra, allowing for future extensions. */ | |
3461 | } | |
3462 | ||
409873ef SS |
3463 | /* Given a line of text defining a part of a tracepoint, parse it into |
3464 | an "uploaded tracepoint". */ | |
00bf0b85 SS |
3465 | |
3466 | void | |
256642e8 | 3467 | parse_tracepoint_definition (const char *line, struct uploaded_tp **utpp) |
00bf0b85 | 3468 | { |
256642e8 | 3469 | const char *p; |
00bf0b85 | 3470 | char piece; |
409873ef | 3471 | ULONGEST num, addr, step, pass, orig_size, xlen, start; |
2a2287c7 | 3472 | int enabled, end; |
00bf0b85 | 3473 | enum bptype type; |
256642e8 | 3474 | const char *srctype; |
67aa1f3c | 3475 | char *buf; |
00bf0b85 SS |
3476 | struct uploaded_tp *utp = NULL; |
3477 | ||
3478 | p = line; | |
3479 | /* Both tracepoint and action definitions start with the same number | |
3480 | and address sequence. */ | |
3481 | piece = *p++; | |
3482 | p = unpack_varlen_hex (p, &num); | |
3483 | p++; /* skip a colon */ | |
3484 | p = unpack_varlen_hex (p, &addr); | |
3485 | p++; /* skip a colon */ | |
3486 | if (piece == 'T') | |
3487 | { | |
67aa1f3c PA |
3488 | gdb::unique_xmalloc_ptr<char[]> cond; |
3489 | ||
00bf0b85 SS |
3490 | enabled = (*p++ == 'E'); |
3491 | p++; /* skip a colon */ | |
3492 | p = unpack_varlen_hex (p, &step); | |
3493 | p++; /* skip a colon */ | |
3494 | p = unpack_varlen_hex (p, &pass); | |
3495 | type = bp_tracepoint; | |
00bf0b85 SS |
3496 | /* Thumb through optional fields. */ |
3497 | while (*p == ':') | |
3498 | { | |
3499 | p++; /* skip a colon */ | |
3500 | if (*p == 'F') | |
3501 | { | |
3502 | type = bp_fast_tracepoint; | |
3503 | p++; | |
3504 | p = unpack_varlen_hex (p, &orig_size); | |
3505 | } | |
0fb4aa4b PA |
3506 | else if (*p == 'S') |
3507 | { | |
3508 | type = bp_static_tracepoint; | |
3509 | p++; | |
3510 | } | |
00bf0b85 SS |
3511 | else if (*p == 'X') |
3512 | { | |
3513 | p++; | |
3514 | p = unpack_varlen_hex (p, &xlen); | |
3515 | p++; /* skip a comma */ | |
67aa1f3c PA |
3516 | cond.reset ((char *) xmalloc (2 * xlen + 1)); |
3517 | strncpy (&cond[0], p, 2 * xlen); | |
00bf0b85 SS |
3518 | cond[2 * xlen] = '\0'; |
3519 | p += 2 * xlen; | |
3520 | } | |
3521 | else | |
3e43a32a MS |
3522 | warning (_("Unrecognized char '%c' in tracepoint " |
3523 | "definition, skipping rest"), *p); | |
00bf0b85 SS |
3524 | } |
3525 | utp = get_uploaded_tp (num, addr, utpp); | |
3526 | utp->type = type; | |
3527 | utp->enabled = enabled; | |
3528 | utp->step = step; | |
3529 | utp->pass = pass; | |
67aa1f3c | 3530 | utp->cond = std::move (cond); |
00bf0b85 SS |
3531 | } |
3532 | else if (piece == 'A') | |
3533 | { | |
3534 | utp = get_uploaded_tp (num, addr, utpp); | |
67aa1f3c | 3535 | utp->actions.emplace_back (xstrdup (p)); |
00bf0b85 SS |
3536 | } |
3537 | else if (piece == 'S') | |
3538 | { | |
3539 | utp = get_uploaded_tp (num, addr, utpp); | |
67aa1f3c | 3540 | utp->step_actions.emplace_back (xstrdup (p)); |
00bf0b85 | 3541 | } |
409873ef SS |
3542 | else if (piece == 'Z') |
3543 | { | |
3544 | /* Parse a chunk of source form definition. */ | |
3545 | utp = get_uploaded_tp (num, addr, utpp); | |
3546 | srctype = p; | |
3547 | p = strchr (p, ':'); | |
3548 | p++; /* skip a colon */ | |
3549 | p = unpack_varlen_hex (p, &start); | |
3550 | p++; /* skip a colon */ | |
3551 | p = unpack_varlen_hex (p, &xlen); | |
3552 | p++; /* skip a colon */ | |
3553 | ||
224c3ddb | 3554 | buf = (char *) alloca (strlen (line)); |
409873ef SS |
3555 | |
3556 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3557 | buf[end] = '\0'; | |
3558 | ||
61012eef | 3559 | if (startswith (srctype, "at:")) |
67aa1f3c | 3560 | utp->at_string.reset (xstrdup (buf)); |
61012eef | 3561 | else if (startswith (srctype, "cond:")) |
67aa1f3c | 3562 | utp->cond_string.reset (xstrdup (buf)); |
61012eef | 3563 | else if (startswith (srctype, "cmd:")) |
67aa1f3c | 3564 | utp->cmd_strings.emplace_back (xstrdup (buf)); |
409873ef | 3565 | } |
f196051f SS |
3566 | else if (piece == 'V') |
3567 | { | |
3568 | utp = get_uploaded_tp (num, addr, utpp); | |
3569 | ||
3570 | parse_tracepoint_status (p, NULL, utp); | |
3571 | } | |
00bf0b85 SS |
3572 | else |
3573 | { | |
409873ef SS |
3574 | /* Don't error out, the target might be sending us optional |
3575 | info that we don't care about. */ | |
3576 | warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece); | |
00bf0b85 SS |
3577 | } |
3578 | } | |
3579 | ||
3580 | /* Convert a textual description of a trace state variable into an | |
3581 | uploaded object. */ | |
3582 | ||
3583 | void | |
256642e8 | 3584 | parse_tsv_definition (const char *line, struct uploaded_tsv **utsvp) |
00bf0b85 | 3585 | { |
256642e8 PA |
3586 | const char *p; |
3587 | char *buf; | |
00bf0b85 SS |
3588 | ULONGEST num, initval, builtin; |
3589 | int end; | |
3590 | struct uploaded_tsv *utsv = NULL; | |
3591 | ||
224c3ddb | 3592 | buf = (char *) alloca (strlen (line)); |
00bf0b85 SS |
3593 | |
3594 | p = line; | |
3595 | p = unpack_varlen_hex (p, &num); | |
3596 | p++; /* skip a colon */ | |
3597 | p = unpack_varlen_hex (p, &initval); | |
3598 | p++; /* skip a colon */ | |
3599 | p = unpack_varlen_hex (p, &builtin); | |
3600 | p++; /* skip a colon */ | |
3601 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3602 | buf[end] = '\0'; | |
3603 | ||
3604 | utsv = get_uploaded_tsv (num, utsvp); | |
3605 | utsv->initial_value = initval; | |
3606 | utsv->builtin = builtin; | |
3607 | utsv->name = xstrdup (buf); | |
3608 | } | |
3609 | ||
0fb4aa4b PA |
3610 | /* Given a line of text defining a static tracepoint marker, parse it |
3611 | into a "static tracepoint marker" object. Throws an error is | |
3612 | parsing fails. If PP is non-null, it points to one past the end of | |
3613 | the parsed marker definition. */ | |
3614 | ||
3615 | void | |
256642e8 | 3616 | parse_static_tracepoint_marker_definition (const char *line, const char **pp, |
5d9310c4 | 3617 | static_tracepoint_marker *marker) |
0fb4aa4b | 3618 | { |
256642e8 | 3619 | const char *p, *endp; |
0fb4aa4b | 3620 | ULONGEST addr; |
0fb4aa4b PA |
3621 | |
3622 | p = line; | |
3623 | p = unpack_varlen_hex (p, &addr); | |
3624 | p++; /* skip a colon */ | |
3625 | ||
f5656ead | 3626 | marker->gdbarch = target_gdbarch (); |
0fb4aa4b PA |
3627 | marker->address = (CORE_ADDR) addr; |
3628 | ||
3629 | endp = strchr (p, ':'); | |
3630 | if (endp == NULL) | |
74232302 | 3631 | error (_("bad marker definition: %s"), line); |
0fb4aa4b | 3632 | |
5d9310c4 | 3633 | marker->str_id = hex2str (p, (endp - p) / 2); |
0fb4aa4b | 3634 | |
5d9310c4 SM |
3635 | p = endp; |
3636 | p++; /* skip a colon */ | |
0fb4aa4b | 3637 | |
62c222b6 SM |
3638 | /* This definition may be followed by another one, separated by a comma. */ |
3639 | int hex_len; | |
3640 | endp = strchr (p, ','); | |
3641 | if (endp != nullptr) | |
3642 | hex_len = endp - p; | |
3643 | else | |
3644 | hex_len = strlen (p); | |
3645 | ||
5d9310c4 | 3646 | marker->extra = hex2str (p, hex_len / 2); |
0fb4aa4b | 3647 | |
5d9310c4 | 3648 | if (pp != nullptr) |
62c222b6 | 3649 | *pp = p + hex_len; |
0fb4aa4b PA |
3650 | } |
3651 | ||
0fb4aa4b PA |
3652 | /* Print MARKER to gdb_stdout. */ |
3653 | ||
3654 | static void | |
3655 | print_one_static_tracepoint_marker (int count, | |
5d9310c4 | 3656 | const static_tracepoint_marker &marker) |
0fb4aa4b | 3657 | { |
0fb4aa4b PA |
3658 | struct symbol *sym; |
3659 | ||
3660 | char wrap_indent[80]; | |
3661 | char extra_field_indent[80]; | |
79a45e25 | 3662 | struct ui_out *uiout = current_uiout; |
0fb4aa4b | 3663 | |
51abb421 | 3664 | symtab_and_line sal; |
5d9310c4 | 3665 | sal.pc = marker.address; |
0fb4aa4b | 3666 | |
f51e0e20 TT |
3667 | std::vector<breakpoint *> tracepoints |
3668 | = static_tracepoints_here (marker.address); | |
0fb4aa4b | 3669 | |
a14a62dd | 3670 | ui_out_emit_tuple tuple_emitter (uiout, "marker"); |
0fb4aa4b PA |
3671 | |
3672 | /* A counter field to help readability. This is not a stable | |
3673 | identifier! */ | |
381befee | 3674 | uiout->field_signed ("count", count); |
0fb4aa4b | 3675 | |
8dd8c8d4 | 3676 | uiout->field_string ("marker-id", marker.str_id); |
0fb4aa4b | 3677 | |
112e8700 | 3678 | uiout->field_fmt ("enabled", "%c", |
f51e0e20 | 3679 | !tracepoints.empty () ? 'y' : 'n'); |
112e8700 | 3680 | uiout->spaces (2); |
0fb4aa4b PA |
3681 | |
3682 | strcpy (wrap_indent, " "); | |
3683 | ||
5d9310c4 | 3684 | if (gdbarch_addr_bit (marker.gdbarch) <= 32) |
0fb4aa4b PA |
3685 | strcat (wrap_indent, " "); |
3686 | else | |
3687 | strcat (wrap_indent, " "); | |
3688 | ||
3689 | strcpy (extra_field_indent, " "); | |
3690 | ||
5d9310c4 | 3691 | uiout->field_core_addr ("addr", marker.gdbarch, marker.address); |
0fb4aa4b | 3692 | |
5d9310c4 SM |
3693 | sal = find_pc_line (marker.address, 0); |
3694 | sym = find_pc_sect_function (marker.address, NULL); | |
0fb4aa4b PA |
3695 | if (sym) |
3696 | { | |
112e8700 | 3697 | uiout->text ("in "); |
987012b8 | 3698 | uiout->field_string ("func", sym->print_name (), |
e43b10e1 | 3699 | function_name_style.style ()); |
112e8700 SM |
3700 | uiout->wrap_hint (wrap_indent); |
3701 | uiout->text (" at "); | |
0fb4aa4b PA |
3702 | } |
3703 | else | |
112e8700 | 3704 | uiout->field_skip ("func"); |
0fb4aa4b PA |
3705 | |
3706 | if (sal.symtab != NULL) | |
3707 | { | |
112e8700 | 3708 | uiout->field_string ("file", |
cbe56571 | 3709 | symtab_to_filename_for_display (sal.symtab), |
e43b10e1 | 3710 | file_name_style.style ()); |
112e8700 | 3711 | uiout->text (":"); |
0fb4aa4b | 3712 | |
112e8700 | 3713 | if (uiout->is_mi_like_p ()) |
0fb4aa4b | 3714 | { |
0b0865da | 3715 | const char *fullname = symtab_to_fullname (sal.symtab); |
0fb4aa4b | 3716 | |
112e8700 | 3717 | uiout->field_string ("fullname", fullname); |
0fb4aa4b PA |
3718 | } |
3719 | else | |
112e8700 | 3720 | uiout->field_skip ("fullname"); |
0fb4aa4b | 3721 | |
381befee | 3722 | uiout->field_signed ("line", sal.line); |
0fb4aa4b PA |
3723 | } |
3724 | else | |
3725 | { | |
112e8700 SM |
3726 | uiout->field_skip ("fullname"); |
3727 | uiout->field_skip ("line"); | |
0fb4aa4b PA |
3728 | } |
3729 | ||
112e8700 SM |
3730 | uiout->text ("\n"); |
3731 | uiout->text (extra_field_indent); | |
3732 | uiout->text (_("Data: \"")); | |
8dd8c8d4 | 3733 | uiout->field_string ("extra-data", marker.extra); |
112e8700 | 3734 | uiout->text ("\"\n"); |
0fb4aa4b | 3735 | |
f51e0e20 | 3736 | if (!tracepoints.empty ()) |
0fb4aa4b | 3737 | { |
0fb4aa4b | 3738 | int ix; |
0fb4aa4b | 3739 | |
a14a62dd | 3740 | { |
b926417a | 3741 | ui_out_emit_tuple inner_tuple_emitter (uiout, "tracepoints-at"); |
a14a62dd TT |
3742 | |
3743 | uiout->text (extra_field_indent); | |
3744 | uiout->text (_("Probed by static tracepoints: ")); | |
f51e0e20 | 3745 | for (ix = 0; ix < tracepoints.size (); ix++) |
a14a62dd TT |
3746 | { |
3747 | if (ix > 0) | |
3748 | uiout->text (", "); | |
3749 | uiout->text ("#"); | |
381befee | 3750 | uiout->field_signed ("tracepoint-id", tracepoints[ix]->number); |
a14a62dd TT |
3751 | } |
3752 | } | |
0fb4aa4b | 3753 | |
112e8700 | 3754 | if (uiout->is_mi_like_p ()) |
381befee | 3755 | uiout->field_signed ("number-of-tracepoints", tracepoints.size ()); |
0fb4aa4b | 3756 | else |
112e8700 | 3757 | uiout->text ("\n"); |
0fb4aa4b | 3758 | } |
0fb4aa4b PA |
3759 | } |
3760 | ||
3761 | static void | |
1d12d88f | 3762 | info_static_tracepoint_markers_command (const char *arg, int from_tty) |
0fb4aa4b | 3763 | { |
79a45e25 | 3764 | struct ui_out *uiout = current_uiout; |
5d9310c4 SM |
3765 | std::vector<static_tracepoint_marker> markers |
3766 | = target_static_tracepoint_markers_by_strid (NULL); | |
0fb4aa4b | 3767 | |
d1feda86 YQ |
3768 | /* We don't have to check target_can_use_agent and agent's capability on |
3769 | static tracepoint here, in order to be compatible with older GDBserver. | |
3770 | We don't check USE_AGENT is true or not, because static tracepoints | |
3771 | don't work without in-process agent, so we don't bother users to type | |
3772 | `set agent on' when to use static tracepoint. */ | |
3773 | ||
4a2b031d TT |
3774 | ui_out_emit_table table_emitter (uiout, 5, -1, |
3775 | "StaticTracepointMarkersTable"); | |
0fb4aa4b | 3776 | |
112e8700 | 3777 | uiout->table_header (7, ui_left, "counter", "Cnt"); |
0fb4aa4b | 3778 | |
112e8700 | 3779 | uiout->table_header (40, ui_left, "marker-id", "ID"); |
0fb4aa4b | 3780 | |
112e8700 | 3781 | uiout->table_header (3, ui_left, "enabled", "Enb"); |
f5656ead | 3782 | if (gdbarch_addr_bit (target_gdbarch ()) <= 32) |
112e8700 | 3783 | uiout->table_header (10, ui_left, "addr", "Address"); |
0fb4aa4b | 3784 | else |
112e8700 SM |
3785 | uiout->table_header (18, ui_left, "addr", "Address"); |
3786 | uiout->table_header (40, ui_noalign, "what", "What"); | |
0fb4aa4b | 3787 | |
112e8700 | 3788 | uiout->table_body (); |
0fb4aa4b | 3789 | |
5d9310c4 SM |
3790 | for (int i = 0; i < markers.size (); i++) |
3791 | print_one_static_tracepoint_marker (i + 1, markers[i]); | |
0fb4aa4b PA |
3792 | } |
3793 | ||
3794 | /* The $_sdata convenience variable is a bit special. We don't know | |
3795 | for sure type of the value until we actually have a chance to fetch | |
3796 | the data --- the size of the object depends on what has been | |
3797 | collected. We solve this by making $_sdata be an internalvar that | |
3798 | creates a new value on access. */ | |
3799 | ||
3800 | /* Return a new value with the correct type for the sdata object of | |
3801 | the current trace frame. Return a void value if there's no object | |
3802 | available. */ | |
3803 | ||
3804 | static struct value * | |
22d2b532 SDJ |
3805 | sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var, |
3806 | void *ignore) | |
0fb4aa4b | 3807 | { |
0fb4aa4b | 3808 | /* We need to read the whole object before we know its size. */ |
9018be22 | 3809 | gdb::optional<gdb::byte_vector> buf |
328d42d8 SM |
3810 | = target_read_alloc (current_inferior ()->top_target (), |
3811 | TARGET_OBJECT_STATIC_TRACE_DATA, | |
9018be22 SM |
3812 | NULL); |
3813 | if (buf) | |
0fb4aa4b PA |
3814 | { |
3815 | struct value *v; | |
3816 | struct type *type; | |
3817 | ||
3818 | type = init_vector_type (builtin_type (gdbarch)->builtin_true_char, | |
9018be22 | 3819 | buf->size ()); |
0fb4aa4b | 3820 | v = allocate_value (type); |
9018be22 | 3821 | memcpy (value_contents_raw (v), buf->data (), buf->size ()); |
0fb4aa4b PA |
3822 | return v; |
3823 | } | |
3824 | else | |
3825 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
3826 | } | |
3827 | ||
b3b9301e PA |
3828 | #if !defined(HAVE_LIBEXPAT) |
3829 | ||
86766165 | 3830 | struct std::unique_ptr<traceframe_info> |
b3b9301e PA |
3831 | parse_traceframe_info (const char *tframe_info) |
3832 | { | |
3833 | static int have_warned; | |
3834 | ||
3835 | if (!have_warned) | |
3836 | { | |
3837 | have_warned = 1; | |
3838 | warning (_("Can not parse XML trace frame info; XML support " | |
3839 | "was disabled at compile time")); | |
3840 | } | |
3841 | ||
3842 | return NULL; | |
3843 | } | |
3844 | ||
3845 | #else /* HAVE_LIBEXPAT */ | |
3846 | ||
3847 | #include "xml-support.h" | |
3848 | ||
3849 | /* Handle the start of a <memory> element. */ | |
3850 | ||
3851 | static void | |
3852 | traceframe_info_start_memory (struct gdb_xml_parser *parser, | |
3853 | const struct gdb_xml_element *element, | |
4d0fdd9b SM |
3854 | void *user_data, |
3855 | std::vector<gdb_xml_value> &attributes) | |
b3b9301e | 3856 | { |
19ba03f4 | 3857 | struct traceframe_info *info = (struct traceframe_info *) user_data; |
b3b9301e PA |
3858 | ULONGEST *start_p, *length_p; |
3859 | ||
19ba03f4 | 3860 | start_p |
4d0fdd9b | 3861 | = (ULONGEST *) xml_find_attribute (attributes, "start")->value.get (); |
19ba03f4 | 3862 | length_p |
4d0fdd9b | 3863 | = (ULONGEST *) xml_find_attribute (attributes, "length")->value.get (); |
b3b9301e | 3864 | |
4cdd21a8 | 3865 | info->memory.emplace_back (*start_p, *length_p); |
b3b9301e PA |
3866 | } |
3867 | ||
28a93511 YQ |
3868 | /* Handle the start of a <tvar> element. */ |
3869 | ||
3870 | static void | |
3871 | traceframe_info_start_tvar (struct gdb_xml_parser *parser, | |
3872 | const struct gdb_xml_element *element, | |
3873 | void *user_data, | |
4d0fdd9b | 3874 | std::vector<gdb_xml_value> &attributes) |
28a93511 | 3875 | { |
19ba03f4 SM |
3876 | struct traceframe_info *info = (struct traceframe_info *) user_data; |
3877 | const char *id_attrib | |
4d0fdd9b | 3878 | = (const char *) xml_find_attribute (attributes, "id")->value.get (); |
28a93511 YQ |
3879 | int id = gdb_xml_parse_ulongest (parser, id_attrib); |
3880 | ||
d0d292a2 | 3881 | info->tvars.push_back (id); |
28a93511 YQ |
3882 | } |
3883 | ||
b3b9301e PA |
3884 | /* The allowed elements and attributes for an XML memory map. */ |
3885 | ||
3886 | static const struct gdb_xml_attribute memory_attributes[] = { | |
3887 | { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
3888 | { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL }, | |
3889 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
3890 | }; | |
3891 | ||
28a93511 YQ |
3892 | static const struct gdb_xml_attribute tvar_attributes[] = { |
3893 | { "id", GDB_XML_AF_NONE, NULL, NULL }, | |
3894 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
3895 | }; | |
3896 | ||
b3b9301e PA |
3897 | static const struct gdb_xml_element traceframe_info_children[] = { |
3898 | { "memory", memory_attributes, NULL, | |
3899 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
3900 | traceframe_info_start_memory, NULL }, | |
28a93511 YQ |
3901 | { "tvar", tvar_attributes, NULL, |
3902 | GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL, | |
3903 | traceframe_info_start_tvar, NULL }, | |
b3b9301e PA |
3904 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } |
3905 | }; | |
3906 | ||
3907 | static const struct gdb_xml_element traceframe_info_elements[] = { | |
3908 | { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE, | |
3909 | NULL, NULL }, | |
3910 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
3911 | }; | |
3912 | ||
3913 | /* Parse a traceframe-info XML document. */ | |
3914 | ||
2098b393 | 3915 | traceframe_info_up |
b3b9301e PA |
3916 | parse_traceframe_info (const char *tframe_info) |
3917 | { | |
2098b393 | 3918 | traceframe_info_up result (new traceframe_info); |
b3b9301e PA |
3919 | |
3920 | if (gdb_xml_parse_quick (_("trace frame info"), | |
3921 | "traceframe-info.dtd", traceframe_info_elements, | |
2098b393 SM |
3922 | tframe_info, result.get ()) == 0) |
3923 | return result; | |
b3b9301e | 3924 | |
b3b9301e PA |
3925 | return NULL; |
3926 | } | |
3927 | ||
3928 | #endif /* HAVE_LIBEXPAT */ | |
3929 | ||
3930 | /* Returns the traceframe_info object for the current traceframe. | |
3931 | This is where we avoid re-fetching the object from the target if we | |
3932 | already have it cached. */ | |
3933 | ||
dc673c81 | 3934 | struct traceframe_info * |
b3b9301e PA |
3935 | get_traceframe_info (void) |
3936 | { | |
8d3c73ef SM |
3937 | if (current_traceframe_info == NULL) |
3938 | current_traceframe_info = target_traceframe_info (); | |
b3b9301e | 3939 | |
2098b393 | 3940 | return current_traceframe_info.get (); |
b3b9301e PA |
3941 | } |
3942 | ||
c0f61f9c PA |
3943 | /* If the target supports the query, return in RESULT the set of |
3944 | collected memory in the current traceframe, found within the LEN | |
3945 | bytes range starting at MEMADDR. Returns true if the target | |
3946 | supports the query, otherwise returns false, and RESULT is left | |
3947 | undefined. */ | |
2a7498d8 PA |
3948 | |
3949 | int | |
a79b1bc6 | 3950 | traceframe_available_memory (std::vector<mem_range> *result, |
2a7498d8 PA |
3951 | CORE_ADDR memaddr, ULONGEST len) |
3952 | { | |
3953 | struct traceframe_info *info = get_traceframe_info (); | |
3954 | ||
3955 | if (info != NULL) | |
3956 | { | |
a79b1bc6 | 3957 | result->clear (); |
2a7498d8 | 3958 | |
4cdd21a8 SM |
3959 | for (mem_range &r : info->memory) |
3960 | if (mem_ranges_overlap (r.start, r.length, memaddr, len)) | |
2a7498d8 PA |
3961 | { |
3962 | ULONGEST lo1, hi1, lo2, hi2; | |
2a7498d8 PA |
3963 | |
3964 | lo1 = memaddr; | |
3965 | hi1 = memaddr + len; | |
3966 | ||
4cdd21a8 SM |
3967 | lo2 = r.start; |
3968 | hi2 = r.start + r.length; | |
2a7498d8 | 3969 | |
a79b1bc6 SM |
3970 | CORE_ADDR start = std::max (lo1, lo2); |
3971 | int length = std::min (hi1, hi2) - start; | |
2a7498d8 | 3972 | |
a79b1bc6 | 3973 | result->emplace_back (start, length); |
2a7498d8 PA |
3974 | } |
3975 | ||
a79b1bc6 | 3976 | normalize_mem_ranges (result); |
2a7498d8 PA |
3977 | return 1; |
3978 | } | |
3979 | ||
3980 | return 0; | |
3981 | } | |
3982 | ||
22d2b532 SDJ |
3983 | /* Implementation of `sdata' variable. */ |
3984 | ||
3985 | static const struct internalvar_funcs sdata_funcs = | |
3986 | { | |
3987 | sdata_make_value, | |
3988 | NULL, | |
3989 | NULL | |
3990 | }; | |
3991 | ||
8588b356 SM |
3992 | /* See tracepoint.h. */ |
3993 | cmd_list_element *while_stepping_cmd_element = nullptr; | |
3994 | ||
c906108c | 3995 | /* module initialization */ |
6c265988 | 3996 | void _initialize_tracepoint (); |
c906108c | 3997 | void |
6c265988 | 3998 | _initialize_tracepoint () |
c906108c | 3999 | { |
fa58ee11 EZ |
4000 | struct cmd_list_element *c; |
4001 | ||
0fb4aa4b PA |
4002 | /* Explicitly create without lookup, since that tries to create a |
4003 | value with a void typed value, and when we get here, gdbarch | |
4004 | isn't initialized yet. At this point, we're quite sure there | |
4005 | isn't another convenience variable of the same name. */ | |
22d2b532 | 4006 | create_internalvar_type_lazy ("_sdata", &sdata_funcs, NULL); |
0fb4aa4b | 4007 | |
c906108c SS |
4008 | traceframe_number = -1; |
4009 | tracepoint_number = -1; | |
4010 | ||
11db9430 | 4011 | add_info ("scope", info_scope_command, |
590042fc | 4012 | _("List the variables local to a scope.")); |
c906108c | 4013 | |
0450cc4c | 4014 | add_cmd ("tracepoints", class_trace, |
1a966eab | 4015 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
4016 | &cmdlist); |
4017 | ||
e5a873b7 | 4018 | add_com ("tdump", class_trace, tdump_command, |
1bedd215 | 4019 | _("Print everything collected at the current tracepoint.")); |
c906108c | 4020 | |
f61e138d SS |
4021 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
4022 | Define a trace state variable.\n\ | |
4023 | Argument is a $-prefixed name, optionally followed\n\ | |
4024 | by '=' and an expression that sets the initial value\n\ | |
4025 | at the start of tracing.")); | |
4026 | set_cmd_completer (c, expression_completer); | |
4027 | ||
4028 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
4029 | Delete one or more trace state variables.\n\ | |
4030 | Arguments are the names of the variables to delete.\n\ | |
4031 | If no arguments are supplied, delete all variables."), &deletelist); | |
c378eb4e | 4032 | /* FIXME add a trace variable completer. */ |
f61e138d | 4033 | |
11db9430 | 4034 | add_info ("tvariables", info_tvariables_command, _("\ |
89549d7f | 4035 | Status of trace state variables and their values.")); |
0fb4aa4b PA |
4036 | |
4037 | add_info ("static-tracepoint-markers", | |
4038 | info_static_tracepoint_markers_command, _("\ | |
89549d7f | 4039 | List target static tracepoints markers.")); |
f61e138d | 4040 | |
e5a873b7 | 4041 | add_prefix_cmd ("tfind", class_trace, tfind_command, _("\ |
590042fc | 4042 | Select a trace frame.\n\ |
1bedd215 | 4043 | No argument means forward by one frame; '-' means backward by one frame."), |
2f822da5 | 4044 | &tfindlist, 1, &cmdlist); |
c906108c | 4045 | |
e5a873b7 | 4046 | add_cmd ("outside", class_trace, tfind_outside_command, _("\ |
081dfbf7 | 4047 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
65e65158 | 4048 | Usage: tfind outside ADDR1, ADDR2"), |
c906108c SS |
4049 | &tfindlist); |
4050 | ||
e5a873b7 | 4051 | add_cmd ("range", class_trace, tfind_range_command, _("\ |
081dfbf7 | 4052 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
65e65158 | 4053 | Usage: tfind range ADDR1, ADDR2"), |
c906108c SS |
4054 | &tfindlist); |
4055 | ||
e5a873b7 | 4056 | add_cmd ("line", class_trace, tfind_line_command, _("\ |
1a966eab | 4057 | Select a trace frame by source line.\n\ |
cce7e648 | 4058 | Argument can be a line number (with optional source file),\n\ |
c906108c | 4059 | a function name, or '*' followed by an address.\n\ |
1a966eab | 4060 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
4061 | &tfindlist); |
4062 | ||
e5a873b7 | 4063 | add_cmd ("tracepoint", class_trace, tfind_tracepoint_command, _("\ |
1a966eab AC |
4064 | Select a trace frame by tracepoint number.\n\ |
4065 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
4066 | &tfindlist); |
4067 | ||
e5a873b7 | 4068 | add_cmd ("pc", class_trace, tfind_pc_command, _("\ |
1a966eab AC |
4069 | Select a trace frame by PC.\n\ |
4070 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
4071 | &tfindlist); |
4072 | ||
5e84b7ee SM |
4073 | cmd_list_element *tfind_end_cmd |
4074 | = add_cmd ("end", class_trace, tfind_end_command, _("\ | |
4075 | De-select any trace frame and resume 'live' debugging."), &tfindlist); | |
c906108c | 4076 | |
5e84b7ee | 4077 | add_alias_cmd ("none", tfind_end_cmd, class_trace, 0, &tfindlist); |
c906108c | 4078 | |
e5a873b7 | 4079 | add_cmd ("start", class_trace, tfind_start_command, |
1a966eab | 4080 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
4081 | &tfindlist); |
4082 | ||
e5a873b7 | 4083 | add_com ("tstatus", class_trace, tstatus_command, |
1bedd215 | 4084 | _("Display the status of the current trace data collection.")); |
c906108c | 4085 | |
e5a873b7 | 4086 | add_com ("tstop", class_trace, tstop_command, _("\ |
f196051f | 4087 | Stop trace data collection.\n\ |
02d016b7 | 4088 | Usage: tstop [NOTES]...\n\ |
f196051f SS |
4089 | Any arguments supplied are recorded with the trace as a stop reason and\n\ |
4090 | reported by tstatus (if the target supports trace notes).")); | |
c906108c | 4091 | |
e5a873b7 | 4092 | add_com ("tstart", class_trace, tstart_command, _("\ |
f196051f | 4093 | Start trace data collection.\n\ |
02d016b7 | 4094 | Usage: tstart [NOTES]...\n\ |
f196051f SS |
4095 | Any arguments supplied are recorded with the trace as a note and\n\ |
4096 | reported by tstatus (if the target supports trace notes).")); | |
c906108c | 4097 | |
1bedd215 AC |
4098 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
4099 | Ends a list of commands or actions.\n\ | |
c906108c SS |
4100 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
4101 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
4102 | such a list.\n\n\ | |
1bedd215 | 4103 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 4104 | |
8588b356 SM |
4105 | while_stepping_cmd_element = add_com ("while-stepping", class_trace, |
4106 | while_stepping_pseudocommand, _("\ | |
1bedd215 | 4107 | Specify single-stepping behavior at a tracepoint.\n\ |
c906108c SS |
4108 | Argument is number of instructions to trace in single-step mode\n\ |
4109 | following the tracepoint. This command is normally followed by\n\ | |
4110 | one or more \"collect\" commands, to specify what to collect\n\ | |
4111 | while single-stepping.\n\n\ | |
1bedd215 | 4112 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4113 | |
3947f654 SM |
4114 | add_com_alias ("ws", while_stepping_cmd_element, class_trace, 0); |
4115 | add_com_alias ("stepping", while_stepping_cmd_element, class_trace, 0); | |
c906108c | 4116 | |
1bedd215 AC |
4117 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
4118 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
4119 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
4120 | collect all data (variables, registers) referenced by that expression.\n\ | |
4121 | Also accepts the following special arguments:\n\ | |
4122 | $regs -- all registers.\n\ | |
4123 | $args -- all function arguments.\n\ | |
4124 | $locals -- all variables local to the block/function scope.\n\ | |
0fb4aa4b | 4125 | $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\ |
1bedd215 | 4126 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 4127 | |
6da95a67 SS |
4128 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
4129 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
4130 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
4131 | The result of each evaluation will be discarded.\n\ | |
4132 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
4133 | ||
e5a873b7 | 4134 | add_com ("actions", class_trace, actions_command, _("\ |
1bedd215 | 4135 | Specify the actions to be taken at a tracepoint.\n\ |
cce7e648 PA |
4136 | Tracepoint actions may include collecting of specified data,\n\ |
4137 | single-stepping, or enabling/disabling other tracepoints,\n\ | |
1bedd215 | 4138 | depending on target's capabilities.")); |
c906108c | 4139 | |
236f1d4d SS |
4140 | default_collect = xstrdup (""); |
4141 | add_setshow_string_cmd ("default-collect", class_trace, | |
4142 | &default_collect, _("\ | |
590042fc PW |
4143 | Set the list of expressions to collect by default."), _("\ |
4144 | Show the list of expressions to collect by default."), NULL, | |
236f1d4d SS |
4145 | NULL, NULL, |
4146 | &setlist, &showlist); | |
4147 | ||
d5551862 SS |
4148 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
4149 | &disconnected_tracing, _("\ | |
4150 | Set whether tracing continues after GDB disconnects."), _("\ | |
4151 | Show whether tracing continues after GDB disconnects."), _("\ | |
4152 | Use this to continue a tracing run even if GDB disconnects\n\ | |
4153 | or detaches from the target. You can reconnect later and look at\n\ | |
4154 | trace data collected in the meantime."), | |
4155 | set_disconnected_tracing, | |
4156 | NULL, | |
4157 | &setlist, | |
4158 | &showlist); | |
00bf0b85 | 4159 | |
4daf5ac0 SS |
4160 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
4161 | &circular_trace_buffer, _("\ | |
4162 | Set target's use of circular trace buffer."), _("\ | |
4163 | Show target's use of circular trace buffer."), _("\ | |
4164 | Use this to make the trace buffer into a circular buffer,\n\ | |
4165 | which will discard traceframes (oldest first) instead of filling\n\ | |
4166 | up and stopping the trace run."), | |
4167 | set_circular_trace_buffer, | |
4168 | NULL, | |
4169 | &setlist, | |
4170 | &showlist); | |
4171 | ||
f6f899bf | 4172 | add_setshow_zuinteger_unlimited_cmd ("trace-buffer-size", no_class, |
9b67fcec | 4173 | &trace_buffer_size, _("\ |
f6f899bf HAQ |
4174 | Set requested size of trace buffer."), _("\ |
4175 | Show requested size of trace buffer."), _("\ | |
4176 | Use this to choose a size for the trace buffer. Some targets\n\ | |
f81d1120 PA |
4177 | may have fixed or limited buffer sizes. Specifying \"unlimited\" or -1\n\ |
4178 | disables any attempt to set the buffer size and lets the target choose."), | |
9b67fcec YQ |
4179 | set_trace_buffer_size, NULL, |
4180 | &setlist, &showlist); | |
f6f899bf | 4181 | |
f196051f SS |
4182 | add_setshow_string_cmd ("trace-user", class_trace, |
4183 | &trace_user, _("\ | |
590042fc PW |
4184 | Set the user name to use for current and future trace runs."), _("\ |
4185 | Show the user name to use for current and future trace runs."), NULL, | |
f196051f SS |
4186 | set_trace_user, NULL, |
4187 | &setlist, &showlist); | |
4188 | ||
4189 | add_setshow_string_cmd ("trace-notes", class_trace, | |
4190 | &trace_notes, _("\ | |
590042fc PW |
4191 | Set notes string to use for current and future trace runs."), _("\ |
4192 | Show the notes string to use for current and future trace runs."), NULL, | |
f196051f SS |
4193 | set_trace_notes, NULL, |
4194 | &setlist, &showlist); | |
4195 | ||
4196 | add_setshow_string_cmd ("trace-stop-notes", class_trace, | |
4197 | &trace_stop_notes, _("\ | |
590042fc PW |
4198 | Set notes string to use for future tstop commands."), _("\ |
4199 | Show the notes string to use for future tstop commands."), NULL, | |
f196051f SS |
4200 | set_trace_stop_notes, NULL, |
4201 | &setlist, &showlist); | |
c906108c | 4202 | } |