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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
4c38e0a4 | 4 | 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
5af949e3 | 22 | #include "arch-utils.h" |
c906108c SS |
23 | #include "symtab.h" |
24 | #include "frame.h" | |
c906108c SS |
25 | #include "gdbtypes.h" |
26 | #include "expression.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "value.h" | |
29 | #include "target.h" | |
30 | #include "language.h" | |
31 | #include "gdb_string.h" | |
104c1213 | 32 | #include "inferior.h" |
1042e4c0 | 33 | #include "breakpoint.h" |
104c1213 | 34 | #include "tracepoint.h" |
c5f0f3d0 | 35 | #include "linespec.h" |
4e052eda | 36 | #include "regcache.h" |
c94fdfd0 | 37 | #include "completer.h" |
fe898f56 | 38 | #include "block.h" |
de4f826b | 39 | #include "dictionary.h" |
383f836e | 40 | #include "observer.h" |
029a67e4 | 41 | #include "user-regs.h" |
79a45b7d | 42 | #include "valprint.h" |
41575630 | 43 | #include "gdbcore.h" |
768a979c | 44 | #include "objfiles.h" |
35b1e5cc | 45 | #include "filenames.h" |
00bf0b85 | 46 | #include "gdbthread.h" |
c906108c SS |
47 | |
48 | #include "ax.h" | |
49 | #include "ax-gdb.h" | |
50 | ||
51 | /* readline include files */ | |
dbda9972 AC |
52 | #include "readline/readline.h" |
53 | #include "readline/history.h" | |
c906108c SS |
54 | |
55 | /* readline defines this. */ | |
56 | #undef savestring | |
57 | ||
58 | #ifdef HAVE_UNISTD_H | |
59 | #include <unistd.h> | |
60 | #endif | |
61 | ||
00bf0b85 SS |
62 | #ifndef O_LARGEFILE |
63 | #define O_LARGEFILE 0 | |
64 | #endif | |
65 | ||
66 | extern int hex2bin (const char *hex, gdb_byte *bin, int count); | |
67 | extern int bin2hex (const gdb_byte *bin, char *hex, int count); | |
68 | ||
d5551862 SS |
69 | extern void stop_tracing (); |
70 | ||
d183932d MS |
71 | /* Maximum length of an agent aexpression. |
72 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
73 | (which includes everything -- including the checksum), and assumes |
74 | the worst case of maximum length for each of the pieces of a | |
75 | continuation packet. | |
c5aa993b | 76 | |
c906108c SS |
77 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
78 | large. (400 - 31)/2 == 184 */ | |
79 | #define MAX_AGENT_EXPR_LEN 184 | |
80 | ||
98c5b216 TT |
81 | /* A hook used to notify the UI of tracepoint operations. */ |
82 | ||
83 | void (*deprecated_trace_find_hook) (char *arg, int from_tty); | |
84 | void (*deprecated_trace_start_stop_hook) (int start, int from_tty); | |
c906108c | 85 | |
9a4105ab AC |
86 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
87 | extern char *(*deprecated_readline_hook) (char *); | |
88 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 89 | |
104c1213 JM |
90 | /* GDB commands implemented in other modules: |
91 | */ | |
92 | ||
a14ed312 | 93 | extern void output_command (char *, int); |
104c1213 | 94 | |
c906108c SS |
95 | /* |
96 | Tracepoint.c: | |
97 | ||
98 | This module defines the following debugger commands: | |
99 | trace : set a tracepoint on a function, line, or address. | |
100 | info trace : list all debugger-defined tracepoints. | |
101 | delete trace : delete one or more tracepoints. | |
102 | enable trace : enable one or more tracepoints. | |
103 | disable trace : disable one or more tracepoints. | |
104 | actions : specify actions to be taken at a tracepoint. | |
105 | passcount : specify a pass count for a tracepoint. | |
106 | tstart : start a trace experiment. | |
107 | tstop : stop a trace experiment. | |
108 | tstatus : query the status of a trace experiment. | |
109 | tfind : find a trace frame in the trace buffer. | |
110 | tdump : print everything collected at the current tracepoint. | |
111 | save-tracepoints : write tracepoint setup into a file. | |
112 | ||
113 | This module defines the following user-visible debugger variables: | |
114 | $trace_frame : sequence number of trace frame currently being debugged. | |
115 | $trace_line : source line of trace frame currently being debugged. | |
116 | $trace_file : source file of trace frame currently being debugged. | |
117 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 118 | */ |
c906108c SS |
119 | |
120 | ||
121 | /* ======= Important global variables: ======= */ | |
122 | ||
f61e138d SS |
123 | /* The list of all trace state variables. We don't retain pointers to |
124 | any of these for any reason - API is by name or number only - so it | |
125 | works to have a vector of objects. */ | |
126 | ||
127 | typedef struct trace_state_variable tsv_s; | |
128 | DEF_VEC_O(tsv_s); | |
129 | ||
130 | static VEC(tsv_s) *tvariables; | |
131 | ||
132 | /* The next integer to assign to a variable. */ | |
133 | ||
134 | static int next_tsv_number = 1; | |
135 | ||
c906108c SS |
136 | /* Number of last traceframe collected. */ |
137 | static int traceframe_number; | |
138 | ||
139 | /* Tracepoint for last traceframe collected. */ | |
140 | static int tracepoint_number; | |
141 | ||
142 | /* Symbol for function for last traceframe collected */ | |
143 | static struct symbol *traceframe_fun; | |
144 | ||
145 | /* Symtab and line for last traceframe collected */ | |
146 | static struct symtab_and_line traceframe_sal; | |
147 | ||
148 | /* Tracing command lists */ | |
149 | static struct cmd_list_element *tfindlist; | |
150 | ||
236f1d4d | 151 | /* List of expressions to collect by default at each tracepoint hit. */ |
35b1e5cc | 152 | char *default_collect = ""; |
236f1d4d | 153 | |
d5551862 SS |
154 | static int disconnected_tracing; |
155 | ||
4daf5ac0 SS |
156 | /* This variable controls whether we ask the target for a linear or |
157 | circular trace buffer. */ | |
158 | ||
159 | static int circular_trace_buffer; | |
160 | ||
c906108c | 161 | /* ======= Important command functions: ======= */ |
a14ed312 KB |
162 | static void trace_actions_command (char *, int); |
163 | static void trace_start_command (char *, int); | |
164 | static void trace_stop_command (char *, int); | |
165 | static void trace_status_command (char *, int); | |
166 | static void trace_find_command (char *, int); | |
167 | static void trace_find_pc_command (char *, int); | |
168 | static void trace_find_tracepoint_command (char *, int); | |
169 | static void trace_find_line_command (char *, int); | |
170 | static void trace_find_range_command (char *, int); | |
171 | static void trace_find_outside_command (char *, int); | |
a14ed312 | 172 | static void trace_dump_command (char *, int); |
c906108c SS |
173 | |
174 | /* support routines */ | |
c906108c SS |
175 | |
176 | struct collection_list; | |
a14ed312 | 177 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 178 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
179 | static void add_register (struct collection_list *collection, |
180 | unsigned int regno); | |
392a587b | 181 | |
d5551862 SS |
182 | extern void send_disconnected_tracing_value (int value); |
183 | ||
00bf0b85 SS |
184 | static void free_uploaded_tps (struct uploaded_tp **utpp); |
185 | static void free_uploaded_tsvs (struct uploaded_tsv **utsvp); | |
186 | ||
187 | ||
a14ed312 | 188 | extern void _initialize_tracepoint (void); |
c906108c | 189 | |
00bf0b85 SS |
190 | static struct trace_status trace_status; |
191 | ||
192 | char *stop_reason_names[] = { | |
193 | "tunknown", | |
194 | "tnotrun", | |
195 | "tstop", | |
196 | "tfull", | |
197 | "tdisconnected", | |
6c28cbf2 SS |
198 | "tpasscount", |
199 | "terror" | |
00bf0b85 SS |
200 | }; |
201 | ||
202 | struct trace_status * | |
203 | current_trace_status () | |
204 | { | |
205 | return &trace_status; | |
206 | } | |
207 | ||
c906108c SS |
208 | /* Set traceframe number to NUM. */ |
209 | static void | |
fba45db2 | 210 | set_traceframe_num (int num) |
c906108c SS |
211 | { |
212 | traceframe_number = num; | |
4fa62494 | 213 | set_internalvar_integer (lookup_internalvar ("trace_frame"), num); |
c906108c SS |
214 | } |
215 | ||
216 | /* Set tracepoint number to NUM. */ | |
217 | static void | |
fba45db2 | 218 | set_tracepoint_num (int num) |
c906108c SS |
219 | { |
220 | tracepoint_number = num; | |
4fa62494 | 221 | set_internalvar_integer (lookup_internalvar ("tracepoint"), num); |
c906108c SS |
222 | } |
223 | ||
224 | /* Set externally visible debug variables for querying/printing | |
225 | the traceframe context (line, function, file) */ | |
226 | ||
227 | static void | |
fb14de7b | 228 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 229 | { |
fb14de7b UW |
230 | CORE_ADDR trace_pc; |
231 | ||
fb14de7b | 232 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
233 | { |
234 | traceframe_fun = 0; | |
235 | traceframe_sal.pc = traceframe_sal.line = 0; | |
236 | traceframe_sal.symtab = NULL; | |
4fa62494 UW |
237 | clear_internalvar (lookup_internalvar ("trace_func")); |
238 | clear_internalvar (lookup_internalvar ("trace_file")); | |
239 | set_internalvar_integer (lookup_internalvar ("trace_line"), -1); | |
c906108c SS |
240 | return; |
241 | } | |
242 | ||
d183932d | 243 | /* Save as globals for internal use. */ |
fb14de7b | 244 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
245 | traceframe_sal = find_pc_line (trace_pc, 0); |
246 | traceframe_fun = find_pc_function (trace_pc); | |
247 | ||
d183932d MS |
248 | /* Save linenumber as "$trace_line", a debugger variable visible to |
249 | users. */ | |
4fa62494 UW |
250 | set_internalvar_integer (lookup_internalvar ("trace_line"), |
251 | traceframe_sal.line); | |
c906108c | 252 | |
d183932d MS |
253 | /* Save func name as "$trace_func", a debugger variable visible to |
254 | users. */ | |
4fa62494 UW |
255 | if (traceframe_fun == NULL |
256 | || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) | |
257 | clear_internalvar (lookup_internalvar ("trace_func")); | |
c906108c | 258 | else |
78267919 UW |
259 | set_internalvar_string (lookup_internalvar ("trace_func"), |
260 | SYMBOL_LINKAGE_NAME (traceframe_fun)); | |
c906108c | 261 | |
d183932d MS |
262 | /* Save file name as "$trace_file", a debugger variable visible to |
263 | users. */ | |
4fa62494 UW |
264 | if (traceframe_sal.symtab == NULL |
265 | || traceframe_sal.symtab->filename == NULL) | |
266 | clear_internalvar (lookup_internalvar ("trace_file")); | |
c906108c | 267 | else |
78267919 UW |
268 | set_internalvar_string (lookup_internalvar ("trace_file"), |
269 | traceframe_sal.symtab->filename); | |
c906108c SS |
270 | } |
271 | ||
f61e138d SS |
272 | /* Create a new trace state variable with the given name. */ |
273 | ||
274 | struct trace_state_variable * | |
275 | create_trace_state_variable (const char *name) | |
276 | { | |
277 | struct trace_state_variable tsv; | |
278 | ||
279 | memset (&tsv, 0, sizeof (tsv)); | |
40e1c229 | 280 | tsv.name = xstrdup (name); |
f61e138d SS |
281 | tsv.number = next_tsv_number++; |
282 | return VEC_safe_push (tsv_s, tvariables, &tsv); | |
283 | } | |
284 | ||
285 | /* Look for a trace state variable of the given name. */ | |
286 | ||
287 | struct trace_state_variable * | |
288 | find_trace_state_variable (const char *name) | |
289 | { | |
290 | struct trace_state_variable *tsv; | |
291 | int ix; | |
292 | ||
293 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
294 | if (strcmp (name, tsv->name) == 0) | |
295 | return tsv; | |
296 | ||
297 | return NULL; | |
298 | } | |
299 | ||
300 | void | |
301 | delete_trace_state_variable (const char *name) | |
302 | { | |
303 | struct trace_state_variable *tsv; | |
304 | int ix; | |
305 | ||
306 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
307 | if (strcmp (name, tsv->name) == 0) | |
308 | { | |
40e1c229 | 309 | xfree ((void *)tsv->name); |
f61e138d SS |
310 | VEC_unordered_remove (tsv_s, tvariables, ix); |
311 | return; | |
312 | } | |
313 | ||
314 | warning (_("No trace variable named \"$%s\", not deleting"), name); | |
315 | } | |
316 | ||
317 | /* The 'tvariable' command collects a name and optional expression to | |
318 | evaluate into an initial value. */ | |
319 | ||
320 | void | |
321 | trace_variable_command (char *args, int from_tty) | |
322 | { | |
323 | struct expression *expr; | |
324 | struct cleanup *old_chain; | |
325 | struct internalvar *intvar = NULL; | |
326 | LONGEST initval = 0; | |
327 | struct trace_state_variable *tsv; | |
328 | ||
329 | if (!args || !*args) | |
330 | error_no_arg (_("trace state variable name")); | |
331 | ||
332 | /* All the possible valid arguments are expressions. */ | |
333 | expr = parse_expression (args); | |
334 | old_chain = make_cleanup (free_current_contents, &expr); | |
335 | ||
336 | if (expr->nelts == 0) | |
337 | error (_("No expression?")); | |
338 | ||
339 | /* Only allow two syntaxes; "$name" and "$name=value". */ | |
340 | if (expr->elts[0].opcode == OP_INTERNALVAR) | |
341 | { | |
342 | intvar = expr->elts[1].internalvar; | |
343 | } | |
344 | else if (expr->elts[0].opcode == BINOP_ASSIGN | |
345 | && expr->elts[1].opcode == OP_INTERNALVAR) | |
346 | { | |
347 | intvar = expr->elts[2].internalvar; | |
348 | initval = value_as_long (evaluate_subexpression_type (expr, 4)); | |
349 | } | |
350 | else | |
351 | error (_("Syntax must be $NAME [ = EXPR ]")); | |
352 | ||
353 | if (!intvar) | |
354 | error (_("No name given")); | |
355 | ||
356 | if (strlen (internalvar_name (intvar)) <= 0) | |
357 | error (_("Must supply a non-empty variable name")); | |
358 | ||
359 | /* If the variable already exists, just change its initial value. */ | |
360 | tsv = find_trace_state_variable (internalvar_name (intvar)); | |
361 | if (tsv) | |
362 | { | |
363 | tsv->initial_value = initval; | |
364 | printf_filtered (_("Trace state variable $%s now has initial value %s.\n"), | |
365 | tsv->name, plongest (tsv->initial_value)); | |
366 | return; | |
367 | } | |
368 | ||
369 | /* Create a new variable. */ | |
370 | tsv = create_trace_state_variable (internalvar_name (intvar)); | |
371 | tsv->initial_value = initval; | |
372 | ||
373 | printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"), | |
374 | tsv->name, plongest (tsv->initial_value)); | |
375 | ||
376 | do_cleanups (old_chain); | |
377 | } | |
378 | ||
379 | void | |
380 | delete_trace_variable_command (char *args, int from_tty) | |
381 | { | |
382 | int i, ix; | |
383 | char **argv; | |
384 | struct cleanup *back_to; | |
385 | struct trace_state_variable *tsv; | |
386 | ||
387 | if (args == NULL) | |
388 | { | |
389 | if (query (_("Delete all trace state variables? "))) | |
390 | VEC_free (tsv_s, tvariables); | |
391 | dont_repeat (); | |
392 | return; | |
393 | } | |
394 | ||
395 | argv = gdb_buildargv (args); | |
396 | back_to = make_cleanup_freeargv (argv); | |
397 | ||
398 | for (i = 0; argv[i] != NULL; i++) | |
399 | { | |
400 | if (*argv[i] == '$') | |
401 | delete_trace_state_variable (argv[i] + 1); | |
402 | else | |
403 | warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]); | |
404 | } | |
405 | ||
406 | do_cleanups (back_to); | |
407 | ||
408 | dont_repeat (); | |
409 | } | |
410 | ||
40e1c229 VP |
411 | void |
412 | tvariables_info_1 (void) | |
f61e138d SS |
413 | { |
414 | struct trace_state_variable *tsv; | |
415 | int ix; | |
40e1c229 VP |
416 | int count = 0; |
417 | struct cleanup *back_to; | |
f61e138d | 418 | |
40e1c229 | 419 | if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout)) |
f61e138d SS |
420 | { |
421 | printf_filtered (_("No trace state variables.\n")); | |
422 | return; | |
423 | } | |
424 | ||
35b1e5cc | 425 | /* Try to acquire values from the target. */ |
4baf5cf4 | 426 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count) |
35b1e5cc SS |
427 | tsv->value_known = target_get_trace_state_variable_value (tsv->number, |
428 | &(tsv->value)); | |
429 | ||
40e1c229 VP |
430 | back_to = make_cleanup_ui_out_table_begin_end (uiout, 3, |
431 | count, "trace-variables"); | |
432 | ui_out_table_header (uiout, 15, ui_left, "name", "Name"); | |
433 | ui_out_table_header (uiout, 11, ui_left, "initial", "Initial"); | |
434 | ui_out_table_header (uiout, 11, ui_left, "current", "Current"); | |
435 | ||
436 | ui_out_table_body (uiout); | |
f61e138d SS |
437 | |
438 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
439 | { | |
40e1c229 VP |
440 | struct cleanup *back_to2; |
441 | char *c; | |
442 | char *name; | |
443 | ||
444 | back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable"); | |
445 | ||
446 | name = concat ("$", tsv->name, NULL); | |
447 | make_cleanup (xfree, name); | |
448 | ui_out_field_string (uiout, "name", name); | |
449 | ui_out_field_string (uiout, "initial", plongest (tsv->initial_value)); | |
450 | ||
f61e138d | 451 | if (tsv->value_known) |
40e1c229 VP |
452 | c = plongest (tsv->value); |
453 | else if (ui_out_is_mi_like_p (uiout)) | |
454 | /* For MI, we prefer not to use magic string constants, but rather | |
455 | omit the field completely. The difference between unknown and | |
456 | undefined does not seem important enough to represent. */ | |
457 | c = NULL; | |
00bf0b85 | 458 | else if (current_trace_status ()->running || traceframe_number >= 0) |
f61e138d | 459 | /* The value is/was defined, but we don't have it. */ |
40e1c229 | 460 | c = "<unknown>"; |
f61e138d SS |
461 | else |
462 | /* It is not meaningful to ask about the value. */ | |
40e1c229 VP |
463 | c = "<undefined>"; |
464 | if (c) | |
465 | ui_out_field_string (uiout, "current", c); | |
466 | ui_out_text (uiout, "\n"); | |
467 | ||
468 | do_cleanups (back_to2); | |
f61e138d | 469 | } |
40e1c229 VP |
470 | |
471 | do_cleanups (back_to); | |
472 | } | |
473 | ||
474 | /* List all the trace state variables. */ | |
475 | ||
476 | static void | |
477 | tvariables_info (char *args, int from_tty) | |
478 | { | |
479 | tvariables_info_1 (); | |
f61e138d SS |
480 | } |
481 | ||
c906108c SS |
482 | /* ACTIONS functions: */ |
483 | ||
c906108c | 484 | /* The three functions: |
c5aa993b JM |
485 | collect_pseudocommand, |
486 | while_stepping_pseudocommand, and | |
487 | end_actions_pseudocommand | |
c906108c SS |
488 | are placeholders for "commands" that are actually ONLY to be used |
489 | within a tracepoint action list. If the actual function is ever called, | |
490 | it means that somebody issued the "command" at the top level, | |
491 | which is always an error. */ | |
492 | ||
1042e4c0 | 493 | void |
fba45db2 | 494 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 495 | { |
8a3fe4f8 | 496 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
497 | } |
498 | ||
1042e4c0 | 499 | void |
fba45db2 | 500 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 501 | { |
8a3fe4f8 | 502 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
503 | } |
504 | ||
505 | static void | |
fba45db2 | 506 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 507 | { |
8a3fe4f8 | 508 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
509 | } |
510 | ||
6da95a67 SS |
511 | static void |
512 | teval_pseudocommand (char *args, int from_tty) | |
513 | { | |
514 | error (_("This command can only be used in a tracepoint actions list.")); | |
515 | } | |
516 | ||
c906108c SS |
517 | /* Enter a list of actions for a tracepoint. */ |
518 | static void | |
fba45db2 | 519 | trace_actions_command (char *args, int from_tty) |
c906108c | 520 | { |
1042e4c0 | 521 | struct breakpoint *t; |
a7bdde9e | 522 | struct command_line *l; |
c906108c | 523 | |
c2d11a7d | 524 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 525 | if (t) |
c906108c | 526 | { |
a7bdde9e VP |
527 | char *tmpbuf = |
528 | xstrprintf ("Enter actions for tracepoint %d, one per line.", | |
529 | t->number); | |
530 | struct cleanup *cleanups = make_cleanup (xfree, tmpbuf); | |
531 | ||
532 | l = read_command_lines (tmpbuf, from_tty, 1, check_tracepoint_command, t); | |
533 | do_cleanups (cleanups); | |
534 | breakpoint_set_commands (t, l); | |
c906108c | 535 | } |
5c44784c | 536 | /* else just return */ |
c906108c SS |
537 | } |
538 | ||
c906108c SS |
539 | /* worker function */ |
540 | enum actionline_type | |
1042e4c0 | 541 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
542 | { |
543 | struct cmd_list_element *c; | |
544 | struct expression *exp = NULL; | |
c906108c | 545 | struct cleanup *old_chain = NULL; |
9355b391 SS |
546 | char *p, *tmp_p; |
547 | struct bp_location *loc; | |
c906108c | 548 | |
15255275 MS |
549 | /* if EOF is typed, *line is NULL */ |
550 | if (*line == NULL) | |
551 | return END; | |
552 | ||
104c1213 | 553 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
554 | p++; |
555 | ||
d183932d MS |
556 | /* Symbol lookup etc. */ |
557 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
558 | return BADLINE; |
559 | ||
c5aa993b | 560 | if (*p == '#') /* comment line */ |
c906108c SS |
561 | return GENERIC; |
562 | ||
563 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
564 | if (c == 0) | |
565 | { | |
8a3fe4f8 | 566 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 567 | p); |
c906108c SS |
568 | return BADLINE; |
569 | } | |
c5aa993b | 570 | |
bbaca940 | 571 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
572 | { |
573 | struct agent_expr *aexpr; | |
574 | struct agent_reqs areqs; | |
575 | ||
c5aa993b JM |
576 | do |
577 | { /* repeat over a comma-separated list */ | |
578 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 579 | while (isspace ((int) *p)) |
c5aa993b | 580 | p++; |
c906108c | 581 | |
c5aa993b JM |
582 | if (*p == '$') /* look for special pseudo-symbols */ |
583 | { | |
c5aa993b JM |
584 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
585 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
586 | (0 == strncasecmp ("loc", p + 1, 3))) | |
587 | { | |
588 | p = strchr (p, ','); | |
589 | continue; | |
590 | } | |
d183932d | 591 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 592 | } |
9355b391 SS |
593 | tmp_p = p; |
594 | for (loc = t->loc; loc; loc = loc->next) | |
c5aa993b | 595 | { |
9355b391 SS |
596 | p = tmp_p; |
597 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
598 | old_chain = make_cleanup (free_current_contents, &exp); | |
599 | ||
600 | if (exp->elts[0].opcode == OP_VAR_VALUE) | |
c5aa993b | 601 | { |
9355b391 SS |
602 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) |
603 | { | |
604 | warning (_("constant %s (value %ld) will not be collected."), | |
605 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), | |
606 | SYMBOL_VALUE (exp->elts[2].symbol)); | |
607 | return BADLINE; | |
608 | } | |
609 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
610 | { | |
611 | warning (_("%s is optimized away and cannot be collected."), | |
612 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); | |
613 | return BADLINE; | |
614 | } | |
c5aa993b | 615 | } |
c906108c | 616 | |
9355b391 SS |
617 | /* We have something to collect, make sure that the expr to |
618 | bytecode translator can handle it and that it's not too | |
619 | long. */ | |
620 | aexpr = gen_trace_for_expr (loc->address, exp); | |
621 | make_cleanup_free_agent_expr (aexpr); | |
c906108c | 622 | |
9355b391 SS |
623 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
624 | error (_("expression too complicated, try simplifying")); | |
c906108c | 625 | |
9355b391 SS |
626 | ax_reqs (aexpr, &areqs); |
627 | (void) make_cleanup (xfree, areqs.reg_mask); | |
c906108c | 628 | |
9355b391 SS |
629 | if (areqs.flaw != agent_flaw_none) |
630 | error (_("malformed expression")); | |
c906108c | 631 | |
9355b391 SS |
632 | if (areqs.min_height < 0) |
633 | error (_("gdb: Internal error: expression has min height < 0")); | |
c906108c | 634 | |
9355b391 SS |
635 | if (areqs.max_height > 20) |
636 | error (_("expression too complicated, try simplifying")); | |
c906108c | 637 | |
9355b391 SS |
638 | do_cleanups (old_chain); |
639 | } | |
c5aa993b JM |
640 | } |
641 | while (p && *p++ == ','); | |
c906108c SS |
642 | return GENERIC; |
643 | } | |
6da95a67 SS |
644 | else if (cmd_cfunc_eq (c, teval_pseudocommand)) |
645 | { | |
646 | struct agent_expr *aexpr; | |
647 | ||
648 | do | |
649 | { /* repeat over a comma-separated list */ | |
650 | QUIT; /* allow user to bail out with ^C */ | |
651 | while (isspace ((int) *p)) | |
652 | p++; | |
653 | ||
9355b391 SS |
654 | tmp_p = p; |
655 | for (loc = t->loc; loc; loc = loc->next) | |
656 | { | |
657 | p = tmp_p; | |
658 | /* Only expressions are allowed for this action. */ | |
659 | exp = parse_exp_1 (&p, block_for_pc (loc->address), 1); | |
660 | old_chain = make_cleanup (free_current_contents, &exp); | |
6da95a67 | 661 | |
9355b391 SS |
662 | /* We have something to evaluate, make sure that the expr to |
663 | bytecode translator can handle it and that it's not too | |
664 | long. */ | |
665 | aexpr = gen_eval_for_expr (loc->address, exp); | |
666 | make_cleanup_free_agent_expr (aexpr); | |
6da95a67 | 667 | |
9355b391 SS |
668 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
669 | error (_("expression too complicated, try simplifying")); | |
6da95a67 | 670 | |
9355b391 SS |
671 | do_cleanups (old_chain); |
672 | } | |
6da95a67 SS |
673 | } |
674 | while (p && *p++ == ','); | |
675 | return GENERIC; | |
676 | } | |
bbaca940 | 677 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 678 | { |
c5aa993b | 679 | char *steparg; /* in case warning is necessary */ |
c906108c | 680 | |
104c1213 | 681 | while (isspace ((int) *p)) |
c906108c SS |
682 | p++; |
683 | steparg = p; | |
684 | ||
685 | if (*p == '\0' || | |
686 | (t->step_count = strtol (p, &p, 0)) == 0) | |
687 | { | |
a7bdde9e | 688 | error (_("'%s': bad step-count."), *line); |
c906108c SS |
689 | } |
690 | return STEPPING; | |
691 | } | |
bbaca940 | 692 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
693 | return END; |
694 | else | |
695 | { | |
a7bdde9e | 696 | error (_("'%s' is not a supported tracepoint action."), *line); |
c906108c | 697 | } |
74b7792f AC |
698 | } |
699 | ||
f50e79a4 JB |
700 | enum { |
701 | memrange_absolute = -1 | |
702 | }; | |
703 | ||
c5aa993b JM |
704 | struct memrange |
705 | { | |
f50e79a4 JB |
706 | int type; /* memrange_absolute for absolute memory range, |
707 | else basereg number */ | |
c906108c SS |
708 | bfd_signed_vma start; |
709 | bfd_signed_vma end; | |
710 | }; | |
711 | ||
c5aa993b JM |
712 | struct collection_list |
713 | { | |
549678da | 714 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
715 | long listsize; |
716 | long next_memrange; | |
717 | struct memrange *list; | |
718 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
719 | long next_aexpr_elt; | |
720 | struct agent_expr **aexpr_list; | |
721 | ||
722 | } | |
723 | tracepoint_list, stepping_list; | |
c906108c SS |
724 | |
725 | /* MEMRANGE functions: */ | |
726 | ||
a14ed312 | 727 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
728 | |
729 | /* compare memranges for qsort */ | |
730 | static int | |
fba45db2 | 731 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
732 | { |
733 | const struct memrange *a = va, *b = vb; | |
734 | ||
735 | if (a->type < b->type) | |
736 | return -1; | |
737 | if (a->type > b->type) | |
c5aa993b | 738 | return 1; |
f50e79a4 | 739 | if (a->type == memrange_absolute) |
c906108c | 740 | { |
c5aa993b JM |
741 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
742 | return -1; | |
743 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
744 | return 1; | |
c906108c SS |
745 | } |
746 | else | |
747 | { | |
c5aa993b | 748 | if (a->start < b->start) |
c906108c | 749 | return -1; |
c5aa993b JM |
750 | if (a->start > b->start) |
751 | return 1; | |
c906108c SS |
752 | } |
753 | return 0; | |
754 | } | |
755 | ||
d183932d | 756 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 757 | static void |
fba45db2 | 758 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
759 | { |
760 | int a, b; | |
761 | ||
c5aa993b | 762 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
763 | sizeof (struct memrange), memrange_cmp); |
764 | if (memranges->next_memrange > 0) | |
765 | { | |
766 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
767 | { | |
768 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 769 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 770 | MAX_REGISTER_SIZE) |
c906108c SS |
771 | { |
772 | /* memrange b starts before memrange a ends; merge them. */ | |
773 | if (memranges->list[b].end > memranges->list[a].end) | |
774 | memranges->list[a].end = memranges->list[b].end; | |
775 | continue; /* next b, same a */ | |
776 | } | |
777 | a++; /* next a */ | |
778 | if (a != b) | |
c5aa993b | 779 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
780 | sizeof (struct memrange)); |
781 | } | |
782 | memranges->next_memrange = a + 1; | |
783 | } | |
784 | } | |
785 | ||
d183932d | 786 | /* Add a register to a collection list. */ |
392a587b | 787 | static void |
fba45db2 | 788 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
789 | { |
790 | if (info_verbose) | |
791 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 792 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 793 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 794 | regno); |
c5aa993b | 795 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
796 | } |
797 | ||
798 | /* Add a memrange to a collection list */ | |
799 | static void | |
d183932d MS |
800 | add_memrange (struct collection_list *memranges, |
801 | int type, bfd_signed_vma base, | |
fba45db2 | 802 | unsigned long len) |
c906108c SS |
803 | { |
804 | if (info_verbose) | |
104c1213 JM |
805 | { |
806 | printf_filtered ("(%d,", type); | |
807 | printf_vma (base); | |
808 | printf_filtered (",%ld)\n", len); | |
809 | } | |
810 | ||
f50e79a4 | 811 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 812 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 813 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
814 | memranges->list[memranges->next_memrange].start = base; |
815 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 816 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
817 | memranges->next_memrange++; |
818 | if (memranges->next_memrange >= memranges->listsize) | |
819 | { | |
820 | memranges->listsize *= 2; | |
c5aa993b | 821 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
822 | memranges->listsize); |
823 | } | |
824 | ||
f50e79a4 | 825 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
826 | add_register (memranges, type); |
827 | } | |
828 | ||
d183932d | 829 | /* Add a symbol to a collection list. */ |
c906108c | 830 | static void |
d183932d MS |
831 | collect_symbol (struct collection_list *collect, |
832 | struct symbol *sym, | |
a6d9a66e | 833 | struct gdbarch *gdbarch, |
0936ad1d SS |
834 | long frame_regno, long frame_offset, |
835 | CORE_ADDR scope) | |
c906108c | 836 | { |
c5aa993b | 837 | unsigned long len; |
104c1213 | 838 | unsigned int reg; |
c906108c | 839 | bfd_signed_vma offset; |
400c6af0 | 840 | int treat_as_expr = 0; |
c906108c | 841 | |
c5aa993b JM |
842 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
843 | switch (SYMBOL_CLASS (sym)) | |
844 | { | |
845 | default: | |
846 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 847 | SYMBOL_PRINT_NAME (sym), |
d183932d | 848 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
849 | break; |
850 | case LOC_CONST: | |
104c1213 | 851 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 852 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
853 | break; |
854 | case LOC_STATIC: | |
855 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
856 | if (info_verbose) | |
104c1213 JM |
857 | { |
858 | char tmp[40]; | |
859 | ||
860 | sprintf_vma (tmp, offset); | |
861 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 862 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 863 | tmp /* address */); |
104c1213 | 864 | } |
400c6af0 SS |
865 | /* A struct may be a C++ class with static fields, go to general |
866 | expression handling. */ | |
867 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT) | |
868 | treat_as_expr = 1; | |
869 | else | |
870 | add_memrange (collect, memrange_absolute, offset, len); | |
c5aa993b JM |
871 | break; |
872 | case LOC_REGISTER: | |
a6d9a66e | 873 | reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); |
c5aa993b | 874 | if (info_verbose) |
d183932d | 875 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 876 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 877 | add_register (collect, reg); |
d183932d MS |
878 | /* Check for doubles stored in two registers. */ |
879 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 880 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
a6d9a66e | 881 | len > register_size (gdbarch, reg)) |
c5aa993b JM |
882 | add_register (collect, reg + 1); |
883 | break; | |
884 | case LOC_REF_ARG: | |
885 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
886 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 887 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
888 | break; |
889 | case LOC_ARG: | |
890 | reg = frame_regno; | |
891 | offset = frame_offset + SYMBOL_VALUE (sym); | |
892 | if (info_verbose) | |
893 | { | |
104c1213 | 894 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 895 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
896 | printf_vma (offset); |
897 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
898 | } |
899 | add_memrange (collect, reg, offset, len); | |
900 | break; | |
901 | case LOC_REGPARM_ADDR: | |
902 | reg = SYMBOL_VALUE (sym); | |
903 | offset = 0; | |
904 | if (info_verbose) | |
905 | { | |
104c1213 | 906 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 907 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
908 | printf_vma (offset); |
909 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
910 | } |
911 | add_memrange (collect, reg, offset, len); | |
912 | break; | |
913 | case LOC_LOCAL: | |
c5aa993b JM |
914 | reg = frame_regno; |
915 | offset = frame_offset + SYMBOL_VALUE (sym); | |
916 | if (info_verbose) | |
917 | { | |
104c1213 | 918 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 919 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
920 | printf_vma (offset); |
921 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
922 | } |
923 | add_memrange (collect, reg, offset, len); | |
924 | break; | |
a0405854 | 925 | |
c5aa993b | 926 | case LOC_UNRESOLVED: |
a0405854 | 927 | treat_as_expr = 1; |
c5aa993b | 928 | break; |
a0405854 | 929 | |
c5aa993b | 930 | case LOC_OPTIMIZED_OUT: |
8e1a459b | 931 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 932 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 933 | break; |
0936ad1d SS |
934 | |
935 | case LOC_COMPUTED: | |
400c6af0 | 936 | treat_as_expr = 1; |
0936ad1d | 937 | break; |
c5aa993b | 938 | } |
400c6af0 SS |
939 | |
940 | /* Expressions are the most general case. */ | |
941 | if (treat_as_expr) | |
942 | { | |
943 | struct agent_expr *aexpr; | |
944 | struct cleanup *old_chain1 = NULL; | |
945 | struct agent_reqs areqs; | |
946 | ||
947 | aexpr = gen_trace_for_var (scope, gdbarch, sym); | |
948 | ||
949 | /* It can happen that the symbol is recorded as a computed | |
950 | location, but it's been optimized away and doesn't actually | |
951 | have a location expression. */ | |
952 | if (!aexpr) | |
953 | { | |
954 | printf_filtered ("%s has been optimized out of existence.\n", | |
955 | SYMBOL_PRINT_NAME (sym)); | |
956 | return; | |
957 | } | |
958 | ||
959 | old_chain1 = make_cleanup_free_agent_expr (aexpr); | |
960 | ||
961 | ax_reqs (aexpr, &areqs); | |
962 | if (areqs.flaw != agent_flaw_none) | |
963 | error (_("malformed expression")); | |
964 | ||
965 | if (areqs.min_height < 0) | |
966 | error (_("gdb: Internal error: expression has min height < 0")); | |
967 | if (areqs.max_height > 20) | |
968 | error (_("expression too complicated, try simplifying")); | |
969 | ||
970 | discard_cleanups (old_chain1); | |
971 | add_aexpr (collect, aexpr); | |
972 | ||
973 | /* take care of the registers */ | |
974 | if (areqs.reg_mask_len > 0) | |
975 | { | |
976 | int ndx1, ndx2; | |
977 | ||
978 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
979 | { | |
980 | QUIT; /* allow user to bail out with ^C */ | |
981 | if (areqs.reg_mask[ndx1] != 0) | |
982 | { | |
983 | /* assume chars have 8 bits */ | |
984 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
985 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
986 | /* it's used -- record it */ | |
987 | add_register (collect, ndx1 * 8 + ndx2); | |
988 | } | |
989 | } | |
990 | } | |
991 | } | |
c906108c SS |
992 | } |
993 | ||
994 | /* Add all locals (or args) symbols to collection list */ | |
995 | static void | |
a6d9a66e UW |
996 | add_local_symbols (struct collection_list *collect, |
997 | struct gdbarch *gdbarch, CORE_ADDR pc, | |
fba45db2 | 998 | long frame_regno, long frame_offset, int type) |
c906108c SS |
999 | { |
1000 | struct symbol *sym; | |
c5aa993b | 1001 | struct block *block; |
de4f826b DC |
1002 | struct dict_iterator iter; |
1003 | int count = 0; | |
c906108c SS |
1004 | |
1005 | block = block_for_pc (pc); | |
1006 | while (block != 0) | |
1007 | { | |
c5aa993b | 1008 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 1009 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 1010 | { |
2a2d4dc3 AS |
1011 | if (SYMBOL_IS_ARGUMENT (sym) |
1012 | ? type == 'A' /* collecting Arguments */ | |
1013 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 1014 | { |
2a2d4dc3 | 1015 | count++; |
a6d9a66e | 1016 | collect_symbol (collect, sym, gdbarch, |
0936ad1d | 1017 | frame_regno, frame_offset, pc); |
c5aa993b | 1018 | } |
c906108c SS |
1019 | } |
1020 | if (BLOCK_FUNCTION (block)) | |
1021 | break; | |
1022 | else | |
1023 | block = BLOCK_SUPERBLOCK (block); | |
1024 | } | |
1025 | if (count == 0) | |
8a3fe4f8 | 1026 | warning (_("No %s found in scope."), |
d183932d | 1027 | type == 'L' ? "locals" : "args"); |
c906108c SS |
1028 | } |
1029 | ||
1030 | /* worker function */ | |
1031 | static void | |
fba45db2 | 1032 | clear_collection_list (struct collection_list *list) |
c906108c SS |
1033 | { |
1034 | int ndx; | |
1035 | ||
1036 | list->next_memrange = 0; | |
1037 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
1038 | { | |
c5aa993b | 1039 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
1040 | list->aexpr_list[ndx] = NULL; |
1041 | } | |
1042 | list->next_aexpr_elt = 0; | |
1043 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
1044 | } | |
1045 | ||
1046 | /* reduce a collection list to string form (for gdb protocol) */ | |
1047 | static char ** | |
fba45db2 | 1048 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
1049 | { |
1050 | char temp_buf[2048]; | |
104c1213 | 1051 | char tmp2[40]; |
c906108c SS |
1052 | int count; |
1053 | int ndx = 0; | |
1054 | char *(*str_list)[]; | |
1055 | char *end; | |
c5aa993b | 1056 | long i; |
c906108c SS |
1057 | |
1058 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 1059 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
1060 | |
1061 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
1062 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
1063 | break; | |
1064 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
1065 | { | |
1066 | if (info_verbose) | |
1067 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
1068 | end = temp_buf; | |
c5aa993b | 1069 | *end++ = 'R'; |
c906108c SS |
1070 | for (; i >= 0; i--) |
1071 | { | |
c5aa993b | 1072 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1073 | if (info_verbose) |
1074 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 1075 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
1076 | end += 2; |
1077 | } | |
1b36a34b | 1078 | (*str_list)[ndx] = xstrdup (temp_buf); |
c906108c SS |
1079 | ndx++; |
1080 | } | |
1081 | if (info_verbose) | |
1082 | printf_filtered ("\n"); | |
1083 | if (list->next_memrange > 0 && info_verbose) | |
1084 | printf_filtered ("Collecting memranges: \n"); | |
1085 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
1086 | { | |
1087 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1088 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 1089 | if (info_verbose) |
104c1213 JM |
1090 | { |
1091 | printf_filtered ("(%d, %s, %ld)\n", | |
1092 | list->list[i].type, | |
1093 | tmp2, | |
1094 | (long) (list->list[i].end - list->list[i].start)); | |
1095 | } | |
c906108c SS |
1096 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
1097 | { | |
c5aa993b | 1098 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1099 | ndx++; |
1100 | count = 0; | |
1101 | end = temp_buf; | |
1102 | } | |
104c1213 | 1103 | |
d1948716 JB |
1104 | { |
1105 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
1106 | ||
1107 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
1108 | so passing -1 (memrange_absolute) to it directly gives you |
1109 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
1110 | Special-case it. */ | |
1111 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
1112 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
1113 | else | |
1114 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
1115 | } | |
104c1213 | 1116 | |
c906108c | 1117 | count += strlen (end); |
3ffbc0a5 | 1118 | end = temp_buf + count; |
c906108c SS |
1119 | } |
1120 | ||
1121 | for (i = 0; i < list->next_aexpr_elt; i++) | |
1122 | { | |
1123 | QUIT; /* allow user to bail out with ^C */ | |
1124 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
1125 | { | |
c5aa993b | 1126 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1127 | ndx++; |
1128 | count = 0; | |
1129 | end = temp_buf; | |
1130 | } | |
1131 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
1132 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
1133 | count += 10; | |
1134 | ||
d183932d MS |
1135 | end = mem2hex (list->aexpr_list[i]->buf, |
1136 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1137 | count += 2 * list->aexpr_list[i]->len; |
1138 | } | |
1139 | ||
1140 | if (count != 0) | |
1141 | { | |
c5aa993b | 1142 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1143 | ndx++; |
1144 | count = 0; | |
1145 | end = temp_buf; | |
1146 | } | |
1147 | (*str_list)[ndx] = NULL; | |
1148 | ||
1149 | if (ndx == 0) | |
27e06d3e | 1150 | { |
6c761d9c | 1151 | xfree (str_list); |
27e06d3e MS |
1152 | return NULL; |
1153 | } | |
c906108c SS |
1154 | else |
1155 | return *str_list; | |
1156 | } | |
1157 | ||
a7bdde9e VP |
1158 | |
1159 | static void | |
1160 | encode_actions_1 (struct command_line *action, | |
1161 | struct breakpoint *t, | |
1162 | struct bp_location *tloc, | |
1163 | int frame_reg, | |
1164 | LONGEST frame_offset, | |
1165 | struct collection_list *collect, | |
1166 | struct collection_list *stepping_list) | |
c906108c | 1167 | { |
c5aa993b JM |
1168 | char *action_exp; |
1169 | struct expression *exp = NULL; | |
a7bdde9e | 1170 | struct command_line *actions; |
104c1213 | 1171 | int i; |
f976f6d4 | 1172 | struct value *tempval; |
c906108c SS |
1173 | struct cmd_list_element *cmd; |
1174 | struct agent_expr *aexpr; | |
236f1d4d SS |
1175 | |
1176 | for (; action; action = action->next) | |
c906108c SS |
1177 | { |
1178 | QUIT; /* allow user to bail out with ^C */ | |
a7bdde9e | 1179 | action_exp = action->line; |
104c1213 | 1180 | while (isspace ((int) *action_exp)) |
c906108c SS |
1181 | action_exp++; |
1182 | ||
c906108c SS |
1183 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); |
1184 | if (cmd == 0) | |
8a3fe4f8 | 1185 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1186 | |
bbaca940 | 1187 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1188 | { |
c5aa993b JM |
1189 | do |
1190 | { /* repeat over a comma-separated list */ | |
1191 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1192 | while (isspace ((int) *action_exp)) |
c5aa993b | 1193 | action_exp++; |
c906108c | 1194 | |
c5aa993b JM |
1195 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1196 | { | |
a6d9a66e | 1197 | for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++) |
c5aa993b JM |
1198 | add_register (collect, i); |
1199 | action_exp = strchr (action_exp, ','); /* more? */ | |
1200 | } | |
1201 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1202 | { | |
1203 | add_local_symbols (collect, | |
a6d9a66e | 1204 | t->gdbarch, |
9355b391 | 1205 | tloc->address, |
c5aa993b JM |
1206 | frame_reg, |
1207 | frame_offset, | |
1208 | 'A'); | |
1209 | action_exp = strchr (action_exp, ','); /* more? */ | |
1210 | } | |
1211 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1212 | { | |
1213 | add_local_symbols (collect, | |
a6d9a66e | 1214 | t->gdbarch, |
9355b391 | 1215 | tloc->address, |
c5aa993b JM |
1216 | frame_reg, |
1217 | frame_offset, | |
1218 | 'L'); | |
1219 | action_exp = strchr (action_exp, ','); /* more? */ | |
1220 | } | |
1221 | else | |
1222 | { | |
1223 | unsigned long addr, len; | |
1224 | struct cleanup *old_chain = NULL; | |
1225 | struct cleanup *old_chain1 = NULL; | |
1226 | struct agent_reqs areqs; | |
1227 | ||
75ac9d7b | 1228 | exp = parse_exp_1 (&action_exp, |
9355b391 | 1229 | block_for_pc (tloc->address), 1); |
74b7792f | 1230 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1231 | |
c5aa993b JM |
1232 | switch (exp->elts[0].opcode) |
1233 | { | |
1234 | case OP_REGISTER: | |
67f3407f DJ |
1235 | { |
1236 | const char *name = &exp->elts[2].string; | |
1237 | ||
a6d9a66e | 1238 | i = user_reg_map_name_to_regnum (t->gdbarch, |
029a67e4 | 1239 | name, strlen (name)); |
67f3407f DJ |
1240 | if (i == -1) |
1241 | internal_error (__FILE__, __LINE__, | |
1242 | _("Register $%s not available"), | |
1243 | name); | |
1244 | if (info_verbose) | |
1245 | printf_filtered ("OP_REGISTER: "); | |
1246 | add_register (collect, i); | |
1247 | break; | |
1248 | } | |
c5aa993b JM |
1249 | |
1250 | case UNOP_MEMVAL: | |
1251 | /* safe because we know it's a simple expression */ | |
1252 | tempval = evaluate_expression (exp); | |
42ae5230 | 1253 | addr = value_address (tempval); |
c5aa993b | 1254 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1255 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1256 | break; |
1257 | ||
1258 | case OP_VAR_VALUE: | |
1259 | collect_symbol (collect, | |
1260 | exp->elts[2].symbol, | |
a6d9a66e | 1261 | t->gdbarch, |
c5aa993b | 1262 | frame_reg, |
0936ad1d | 1263 | frame_offset, |
9355b391 | 1264 | tloc->address); |
c5aa993b JM |
1265 | break; |
1266 | ||
1267 | default: /* full-fledged expression */ | |
9355b391 | 1268 | aexpr = gen_trace_for_expr (tloc->address, exp); |
c5aa993b | 1269 | |
f23d52e0 | 1270 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1271 | |
1272 | ax_reqs (aexpr, &areqs); | |
1273 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1274 | error (_("malformed expression")); |
c5aa993b JM |
1275 | |
1276 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1277 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1278 | if (areqs.max_height > 20) |
8a3fe4f8 | 1279 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1280 | |
1281 | discard_cleanups (old_chain1); | |
1282 | add_aexpr (collect, aexpr); | |
1283 | ||
1284 | /* take care of the registers */ | |
1285 | if (areqs.reg_mask_len > 0) | |
c906108c | 1286 | { |
c5aa993b JM |
1287 | int ndx1; |
1288 | int ndx2; | |
1289 | ||
1290 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1291 | { |
c5aa993b JM |
1292 | QUIT; /* allow user to bail out with ^C */ |
1293 | if (areqs.reg_mask[ndx1] != 0) | |
1294 | { | |
1295 | /* assume chars have 8 bits */ | |
1296 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1297 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1298 | /* it's used -- record it */ | |
d183932d MS |
1299 | add_register (collect, |
1300 | ndx1 * 8 + ndx2); | |
c5aa993b | 1301 | } |
c906108c SS |
1302 | } |
1303 | } | |
c5aa993b JM |
1304 | break; |
1305 | } /* switch */ | |
1306 | do_cleanups (old_chain); | |
1307 | } /* do */ | |
1308 | } | |
1309 | while (action_exp && *action_exp++ == ','); | |
1310 | } /* if */ | |
6da95a67 SS |
1311 | else if (cmd_cfunc_eq (cmd, teval_pseudocommand)) |
1312 | { | |
1313 | do | |
1314 | { /* repeat over a comma-separated list */ | |
1315 | QUIT; /* allow user to bail out with ^C */ | |
1316 | while (isspace ((int) *action_exp)) | |
1317 | action_exp++; | |
1318 | ||
1319 | { | |
1320 | unsigned long addr, len; | |
1321 | struct cleanup *old_chain = NULL; | |
1322 | struct cleanup *old_chain1 = NULL; | |
1323 | struct agent_reqs areqs; | |
1324 | ||
1325 | exp = parse_exp_1 (&action_exp, | |
9355b391 | 1326 | block_for_pc (tloc->address), 1); |
6da95a67 SS |
1327 | old_chain = make_cleanup (free_current_contents, &exp); |
1328 | ||
9355b391 | 1329 | aexpr = gen_eval_for_expr (tloc->address, exp); |
6da95a67 SS |
1330 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
1331 | ||
1332 | ax_reqs (aexpr, &areqs); | |
1333 | if (areqs.flaw != agent_flaw_none) | |
1334 | error (_("malformed expression")); | |
1335 | ||
1336 | if (areqs.min_height < 0) | |
1337 | error (_("gdb: Internal error: expression has min height < 0")); | |
1338 | if (areqs.max_height > 20) | |
1339 | error (_("expression too complicated, try simplifying")); | |
1340 | ||
1341 | discard_cleanups (old_chain1); | |
1342 | /* Even though we're not officially collecting, add | |
1343 | to the collect list anyway. */ | |
1344 | add_aexpr (collect, aexpr); | |
1345 | ||
1346 | do_cleanups (old_chain); | |
1347 | } /* do */ | |
1348 | } | |
1349 | while (action_exp && *action_exp++ == ','); | |
1350 | } /* if */ | |
bbaca940 | 1351 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 1352 | { |
a7bdde9e VP |
1353 | /* We check against nested while-stepping when setting |
1354 | breakpoint action, so no way to run into nested | |
1355 | here. */ | |
1356 | gdb_assert (stepping_list); | |
1357 | ||
1358 | encode_actions_1 (action->body_list[0], t, tloc, frame_reg, frame_offset, | |
1359 | stepping_list, NULL); | |
c906108c | 1360 | } |
a7bdde9e VP |
1361 | else |
1362 | error (_("Invalid tracepoint command '%s'"), action->line); | |
1363 | } /* for */ | |
1364 | } | |
1365 | ||
1366 | /* Render all actions into gdb protocol. */ | |
1367 | /*static*/ void | |
1368 | encode_actions (struct breakpoint *t, struct bp_location *tloc, | |
1369 | char ***tdp_actions, char ***stepping_actions) | |
1370 | { | |
1371 | static char tdp_buff[2048], step_buff[2048]; | |
1372 | char *default_collect_line = NULL; | |
1373 | struct command_line *actions; | |
1374 | struct command_line *default_collect_action = NULL; | |
1375 | int frame_reg; | |
1376 | LONGEST frame_offset; | |
1377 | struct cleanup *back_to; | |
1378 | ||
1379 | back_to = make_cleanup (null_cleanup, NULL); | |
1380 | ||
1381 | clear_collection_list (&tracepoint_list); | |
1382 | clear_collection_list (&stepping_list); | |
1383 | ||
1384 | *tdp_actions = NULL; | |
1385 | *stepping_actions = NULL; | |
1386 | ||
1387 | gdbarch_virtual_frame_pointer (t->gdbarch, | |
1388 | t->loc->address, &frame_reg, &frame_offset); | |
1389 | ||
9add0f1b | 1390 | actions = t->commands->commands; |
a7bdde9e VP |
1391 | |
1392 | /* If there are default expressions to collect, make up a collect | |
1393 | action and prepend to the action list to encode. Note that since | |
1394 | validation is per-tracepoint (local var "xyz" might be valid for | |
1395 | one tracepoint and not another, etc), we make up the action on | |
1396 | the fly, and don't cache it. */ | |
1397 | if (*default_collect) | |
1398 | { | |
1399 | char *line; | |
1400 | enum actionline_type linetype; | |
1401 | ||
1402 | default_collect_line = xstrprintf ("collect %s", default_collect); | |
1403 | make_cleanup (xfree, default_collect_line); | |
1404 | ||
1405 | line = default_collect_line; | |
1406 | linetype = validate_actionline (&line, t); | |
1407 | if (linetype != BADLINE) | |
c906108c | 1408 | { |
a7bdde9e VP |
1409 | default_collect_action = xmalloc (sizeof (struct command_line)); |
1410 | make_cleanup (xfree, default_collect_action); | |
9add0f1b | 1411 | default_collect_action->next = t->commands->commands; |
a7bdde9e VP |
1412 | default_collect_action->line = line; |
1413 | actions = default_collect_action; | |
c906108c | 1414 | } |
a7bdde9e VP |
1415 | } |
1416 | encode_actions_1 (actions, t, tloc, frame_reg, frame_offset, | |
1417 | &tracepoint_list, &stepping_list); | |
1418 | ||
c5aa993b JM |
1419 | memrange_sortmerge (&tracepoint_list); |
1420 | memrange_sortmerge (&stepping_list); | |
c906108c | 1421 | |
a7bdde9e | 1422 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
d183932d | 1423 | tdp_buff); |
a7bdde9e | 1424 | *stepping_actions = stringify_collection_list (&stepping_list, |
d183932d | 1425 | step_buff); |
236f1d4d | 1426 | |
a7bdde9e | 1427 | do_cleanups (back_to); |
c906108c SS |
1428 | } |
1429 | ||
1430 | static void | |
fba45db2 | 1431 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1432 | { |
1433 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1434 | { | |
1435 | collect->aexpr_list = | |
1436 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1437 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1438 | collect->aexpr_listsize *= 2; |
1439 | } | |
1440 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1441 | collect->next_aexpr_elt++; | |
1442 | } | |
1443 | ||
c5aa993b | 1444 | |
f224b49d VP |
1445 | void |
1446 | start_tracing (void) | |
d183932d | 1447 | { |
f61e138d | 1448 | char buf[2048]; |
1042e4c0 SS |
1449 | VEC(breakpoint_p) *tp_vec = NULL; |
1450 | int ix; | |
1451 | struct breakpoint *t; | |
f61e138d | 1452 | struct trace_state_variable *tsv; |
76a2b958 | 1453 | int any_enabled = 0; |
35b1e5cc SS |
1454 | |
1455 | tp_vec = all_tracepoints (); | |
76a2b958 SS |
1456 | |
1457 | /* No point in tracing without any tracepoints... */ | |
1458 | if (VEC_length (breakpoint_p, tp_vec) == 0) | |
1459 | { | |
1460 | VEC_free (breakpoint_p, tp_vec); | |
1461 | error (_("No tracepoints defined, not starting trace")); | |
1462 | } | |
1463 | ||
1464 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1465 | { | |
1466 | if (t->enable_state == bp_enabled) | |
1467 | { | |
1468 | any_enabled = 1; | |
1469 | break; | |
1470 | } | |
1471 | } | |
1472 | ||
1473 | /* No point in tracing with only disabled tracepoints. */ | |
1474 | if (!any_enabled) | |
1475 | { | |
1476 | VEC_free (breakpoint_p, tp_vec); | |
1477 | error (_("No tracepoints enabled, not starting trace")); | |
1478 | } | |
1479 | ||
1480 | target_trace_init (); | |
1481 | ||
35b1e5cc | 1482 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) |
7a697b8d | 1483 | { |
35b1e5cc SS |
1484 | t->number_on_target = 0; |
1485 | target_download_tracepoint (t); | |
1486 | t->number_on_target = t->number; | |
7a697b8d | 1487 | } |
35b1e5cc | 1488 | VEC_free (breakpoint_p, tp_vec); |
76a2b958 | 1489 | |
00bf0b85 | 1490 | /* Send down all the trace state variables too. */ |
35b1e5cc | 1491 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) |
782b2b07 | 1492 | { |
00bf0b85 | 1493 | target_download_trace_state_variable (tsv); |
782b2b07 | 1494 | } |
35b1e5cc SS |
1495 | |
1496 | /* Tell target to treat text-like sections as transparent. */ | |
1497 | target_trace_set_readonly_regions (); | |
4daf5ac0 SS |
1498 | /* Set some mode flags. */ |
1499 | target_set_disconnected_tracing (disconnected_tracing); | |
1500 | target_set_circular_trace_buffer (circular_trace_buffer); | |
1042e4c0 | 1501 | |
35b1e5cc SS |
1502 | /* Now insert traps and begin collecting data. */ |
1503 | target_trace_start (); | |
1042e4c0 | 1504 | |
35b1e5cc SS |
1505 | /* Reset our local state. */ |
1506 | set_traceframe_num (-1); | |
1507 | set_tracepoint_num (-1); | |
1508 | set_traceframe_context (NULL); | |
00bf0b85 | 1509 | current_trace_status()->running = 1; |
1042e4c0 SS |
1510 | } |
1511 | ||
f224b49d VP |
1512 | /* tstart command: |
1513 | ||
1514 | Tell target to clear any previous trace experiment. | |
1515 | Walk the list of tracepoints, and send them (and their actions) | |
1516 | to the target. If no errors, | |
1517 | Tell target to start a new trace experiment. */ | |
1518 | ||
1519 | static void | |
1520 | trace_start_command (char *args, int from_tty) | |
1521 | { | |
1522 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ | |
1523 | ||
1524 | start_tracing (); | |
1525 | } | |
1526 | ||
c906108c SS |
1527 | /* tstop command */ |
1528 | static void | |
fba45db2 | 1529 | trace_stop_command (char *args, int from_tty) |
d183932d | 1530 | { |
35b1e5cc | 1531 | stop_tracing (); |
c906108c SS |
1532 | } |
1533 | ||
d5551862 | 1534 | void |
f224b49d | 1535 | stop_tracing (void) |
d5551862 | 1536 | { |
35b1e5cc | 1537 | target_trace_stop (); |
00bf0b85 SS |
1538 | /* should change in response to reply? */ |
1539 | current_trace_status ()->running = 0; | |
d5551862 SS |
1540 | } |
1541 | ||
c906108c SS |
1542 | /* tstatus command */ |
1543 | static void | |
fba45db2 | 1544 | trace_status_command (char *args, int from_tty) |
d183932d | 1545 | { |
00bf0b85 SS |
1546 | struct trace_status *ts = current_trace_status (); |
1547 | int status; | |
35b1e5cc | 1548 | |
00bf0b85 SS |
1549 | status = target_get_trace_status (ts); |
1550 | ||
1551 | if (status == -1) | |
1552 | { | |
1553 | if (ts->from_file) | |
1554 | printf_filtered (_("Using a trace file.\n")); | |
1555 | else | |
1556 | { | |
1557 | printf_filtered (_("Trace can not be run on this target.\n")); | |
1558 | return; | |
1559 | } | |
1560 | } | |
1561 | ||
1562 | if (!ts->running_known) | |
1563 | { | |
1564 | printf_filtered (_("Run/stop status is unknown.\n")); | |
1565 | } | |
1566 | else if (ts->running) | |
c906108c | 1567 | { |
35b1e5cc SS |
1568 | printf_filtered (_("Trace is running on the target.\n")); |
1569 | if (disconnected_tracing) | |
1570 | printf_filtered (_("Trace will continue if GDB disconnects.\n")); | |
d3513012 | 1571 | else |
35b1e5cc | 1572 | printf_filtered (_("Trace will stop if GDB disconnects.\n")); |
c906108c SS |
1573 | } |
1574 | else | |
00bf0b85 SS |
1575 | { |
1576 | switch (ts->stop_reason) | |
1577 | { | |
1578 | case trace_never_run: | |
1579 | printf_filtered (_("No trace has been run on the target.\n")); | |
1580 | break; | |
1581 | case tstop_command: | |
1582 | printf_filtered (_("Trace stopped by a tstop command.\n")); | |
1583 | break; | |
1584 | case trace_buffer_full: | |
1585 | printf_filtered (_("Trace stopped because the buffer was full.\n")); | |
1586 | break; | |
1587 | case trace_disconnected: | |
1588 | printf_filtered (_("Trace stopped because of disconnection.\n")); | |
1589 | break; | |
1590 | case tracepoint_passcount: | |
00bf0b85 SS |
1591 | printf_filtered (_("Trace stopped by tracepoint %d.\n"), |
1592 | ts->stopping_tracepoint); | |
1593 | break; | |
6c28cbf2 SS |
1594 | case tracepoint_error: |
1595 | if (ts->stopping_tracepoint) | |
1596 | printf_filtered (_("Trace stopped by an error (%s, tracepoint %d).\n"), | |
1597 | ts->error_desc, ts->stopping_tracepoint); | |
1598 | else | |
1599 | printf_filtered (_("Trace stopped by an error (%s).\n"), | |
1600 | ts->error_desc); | |
1601 | break; | |
00bf0b85 SS |
1602 | case trace_stop_reason_unknown: |
1603 | printf_filtered (_("Trace stopped for an unknown reason.\n")); | |
1604 | break; | |
1605 | default: | |
1606 | printf_filtered (_("Trace stopped for some other reason (%d).\n"), | |
1607 | ts->stop_reason); | |
1608 | break; | |
1609 | } | |
1610 | } | |
1611 | ||
4daf5ac0 SS |
1612 | if (ts->traceframes_created >= 0 |
1613 | && ts->traceframe_count != ts->traceframes_created) | |
1614 | { | |
1615 | printf_filtered (_("Buffer contains %d trace frames (of %d created total).\n"), | |
1616 | ts->traceframe_count, ts->traceframes_created); | |
1617 | } | |
1618 | else if (ts->traceframe_count >= 0) | |
00bf0b85 SS |
1619 | { |
1620 | printf_filtered (_("Collected %d trace frames.\n"), | |
1621 | ts->traceframe_count); | |
1622 | } | |
1623 | ||
4daf5ac0 | 1624 | if (ts->buffer_free >= 0) |
00bf0b85 | 1625 | { |
4daf5ac0 SS |
1626 | if (ts->buffer_size >= 0) |
1627 | { | |
1628 | printf_filtered (_("Trace buffer has %d bytes of %d bytes free"), | |
1629 | ts->buffer_free, ts->buffer_size); | |
1630 | if (ts->buffer_size > 0) | |
1631 | printf_filtered (_(" (%d%% full)"), | |
1632 | ((int) ((((long long) (ts->buffer_size | |
1633 | - ts->buffer_free)) * 100) | |
1634 | / ts->buffer_size))); | |
1635 | printf_filtered (_(".\n")); | |
1636 | } | |
1637 | else | |
1638 | printf_filtered (_("Trace buffer has %d bytes free.\n"), | |
1639 | ts->buffer_free); | |
00bf0b85 | 1640 | } |
35b1e5cc | 1641 | |
00bf0b85 | 1642 | /* Now report on what we're doing with tfind. */ |
35b1e5cc SS |
1643 | if (traceframe_number >= 0) |
1644 | printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"), | |
1645 | traceframe_number, tracepoint_number); | |
1646 | else | |
1647 | printf_filtered (_("Not looking at any trace frame.\n")); | |
c906108c SS |
1648 | } |
1649 | ||
f224b49d VP |
1650 | /* Report the trace status to uiout, in a way suitable for MI, and not |
1651 | suitable for CLI. If ON_STOP is true, suppress a few fields that | |
1652 | are not meaningful in the -trace-stop response. | |
1653 | ||
1654 | The implementation is essentially parallel to trace_status_command, but | |
1655 | merging them will result in unreadable code. */ | |
1656 | void | |
1657 | trace_status_mi (int on_stop) | |
1658 | { | |
1659 | struct trace_status *ts = current_trace_status (); | |
1660 | int status; | |
1661 | char *string_status; | |
1662 | ||
1663 | status = target_get_trace_status (ts); | |
1664 | ||
1665 | if (status == -1 && !ts->from_file) | |
1666 | { | |
1667 | ui_out_field_string (uiout, "supported", "0"); | |
1668 | return; | |
1669 | } | |
1670 | ||
1671 | if (ts->from_file) | |
1672 | ui_out_field_string (uiout, "supported", "file"); | |
1673 | else if (!on_stop) | |
1674 | ui_out_field_string (uiout, "supported", "1"); | |
1675 | ||
1676 | gdb_assert (ts->running_known); | |
1677 | ||
1678 | if (ts->running) | |
1679 | { | |
1680 | ui_out_field_string (uiout, "running", "1"); | |
1681 | ||
1682 | /* Unlike CLI, do not show the state of 'disconnected-tracing' variable. | |
1683 | Given that the frontend gets the status either on -trace-stop, or from | |
1684 | -trace-status after re-connection, it does not seem like this | |
1685 | information is necessary for anything. It is not necessary for either | |
1686 | figuring the vital state of the target nor for navigation of trace | |
1687 | frames. If the frontend wants to show the current state is some | |
1688 | configure dialog, it can request the value when such dialog is | |
1689 | invoked by the user. */ | |
1690 | } | |
1691 | else | |
1692 | { | |
1693 | char *stop_reason = NULL; | |
1694 | int stopping_tracepoint = -1; | |
1695 | ||
1696 | if (!on_stop) | |
1697 | ui_out_field_string (uiout, "running", "0"); | |
1698 | ||
1699 | if (ts->stop_reason != trace_stop_reason_unknown) | |
1700 | { | |
1701 | switch (ts->stop_reason) | |
1702 | { | |
1703 | case tstop_command: | |
1704 | stop_reason = "request"; | |
1705 | break; | |
1706 | case trace_buffer_full: | |
1707 | stop_reason = "overflow"; | |
1708 | break; | |
1709 | case trace_disconnected: | |
1710 | stop_reason = "disconnection"; | |
1711 | break; | |
1712 | case tracepoint_passcount: | |
1713 | stop_reason = "passcount"; | |
1714 | stopping_tracepoint = ts->stopping_tracepoint; | |
1715 | break; | |
6c28cbf2 SS |
1716 | case tracepoint_error: |
1717 | stop_reason = "error"; | |
1718 | stopping_tracepoint = ts->stopping_tracepoint; | |
1719 | break; | |
f224b49d VP |
1720 | } |
1721 | ||
1722 | if (stop_reason) | |
1723 | { | |
1724 | ui_out_field_string (uiout, "stop-reason", stop_reason); | |
1725 | if (stopping_tracepoint != -1) | |
1726 | ui_out_field_int (uiout, "stopping-tracepoint", | |
1727 | stopping_tracepoint); | |
6c28cbf2 SS |
1728 | if (ts->stop_reason == tracepoint_error) |
1729 | ui_out_field_string (uiout, "error-description", | |
1730 | ts->error_desc); | |
f224b49d VP |
1731 | } |
1732 | } | |
1733 | } | |
1734 | ||
1735 | ||
1736 | if ((int) ts->traceframe_count != -1) | |
1737 | ui_out_field_int (uiout, "frames", ts->traceframe_count); | |
1738 | if ((int) ts->buffer_size != -1) | |
1739 | ui_out_field_int (uiout, "buffer-size", (int) ts->buffer_size); | |
1740 | if ((int) ts->buffer_free != -1) | |
1741 | ui_out_field_int (uiout, "buffer-free", (int) ts->buffer_free); | |
1742 | } | |
1743 | ||
1744 | ||
d5551862 SS |
1745 | void |
1746 | disconnect_or_stop_tracing (int from_tty) | |
1747 | { | |
00bf0b85 SS |
1748 | /* It can happen that the target that was tracing went away on its |
1749 | own, and we didn't notice. Get a status update, and if the | |
1750 | current target doesn't even do tracing, then assume it's not | |
1751 | running anymore. */ | |
1752 | if (target_get_trace_status (current_trace_status ()) < 0) | |
1753 | current_trace_status ()->running = 0; | |
1754 | ||
1755 | if (current_trace_status ()->running && from_tty) | |
d5551862 SS |
1756 | { |
1757 | int cont = query (_("Trace is running. Continue tracing after detach? ")); | |
1758 | /* Note that we send the query result without affecting the | |
1759 | user's setting of disconnected_tracing, so that the answer is | |
1760 | a one-time-only. */ | |
1761 | send_disconnected_tracing_value (cont); | |
1762 | ||
1763 | /* Also ensure that we do the equivalent of a tstop command if | |
1764 | tracing is not to continue after the detach. */ | |
1765 | if (!cont) | |
1766 | stop_tracing (); | |
1767 | } | |
8b9b7ef8 SS |
1768 | |
1769 | /* Also we want to be out of tfind mode, otherwise things can get | |
1770 | confusing upon reconnection. Just use these calls instead of | |
1771 | full tfind_1 behavior because we're in the middle of detaching, | |
1772 | and there's no point to updating current stack frame etc. */ | |
1773 | set_traceframe_number (-1); | |
1774 | set_traceframe_context (NULL); | |
d5551862 SS |
1775 | } |
1776 | ||
d183932d | 1777 | /* Worker function for the various flavors of the tfind command. */ |
f197e0f1 VP |
1778 | void |
1779 | tfind_1 (enum trace_find_type type, int num, | |
1780 | ULONGEST addr1, ULONGEST addr2, | |
1781 | int from_tty) | |
c906108c SS |
1782 | { |
1783 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1784 | struct frame_id old_frame_id; |
c906108c | 1785 | char *reply; |
d5551862 | 1786 | struct breakpoint *tp; |
c906108c | 1787 | |
fb14de7b | 1788 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1789 | |
35b1e5cc SS |
1790 | target_frameno = target_trace_find (type, num, addr1, addr2, |
1791 | &target_tracept); | |
1792 | ||
1793 | if (type == tfind_number | |
1794 | && num == -1 | |
1795 | && target_frameno == -1) | |
1796 | { | |
1797 | /* We told the target to get out of tfind mode, and it did. */ | |
1798 | } | |
1799 | else if (target_frameno == -1) | |
1800 | { | |
1801 | /* A request for a non-existant trace frame has failed. | |
1802 | Our response will be different, depending on FROM_TTY: | |
1803 | ||
1804 | If FROM_TTY is true, meaning that this command was | |
1805 | typed interactively by the user, then give an error | |
1806 | and DO NOT change the state of traceframe_number etc. | |
1807 | ||
1808 | However if FROM_TTY is false, meaning that we're either | |
1809 | in a script, a loop, or a user-defined command, then | |
1810 | DON'T give an error, but DO change the state of | |
1811 | traceframe_number etc. to invalid. | |
1812 | ||
1813 | The rationalle is that if you typed the command, you | |
1814 | might just have committed a typo or something, and you'd | |
1815 | like to NOT lose your current debugging state. However | |
1816 | if you're in a user-defined command or especially in a | |
1817 | loop, then you need a way to detect that the command | |
1818 | failed WITHOUT aborting. This allows you to write | |
1819 | scripts that search thru the trace buffer until the end, | |
1820 | and then continue on to do something else. */ | |
1821 | ||
1822 | if (from_tty) | |
1823 | error (_("Target failed to find requested trace frame.")); | |
1824 | else | |
1825 | { | |
1826 | if (info_verbose) | |
1827 | printf_filtered ("End of trace buffer.\n"); | |
1828 | #if 0 /* dubious now? */ | |
1829 | /* The following will not recurse, since it's | |
1830 | special-cased. */ | |
1831 | trace_find_command ("-1", from_tty); | |
1832 | #endif | |
1833 | } | |
1834 | } | |
1835 | ||
d5551862 SS |
1836 | tp = get_tracepoint_by_number_on_target (target_tracept); |
1837 | ||
35f196d9 | 1838 | reinit_frame_cache (); |
c906108c | 1839 | registers_changed (); |
2f4d8875 | 1840 | target_dcache_invalidate (); |
c906108c | 1841 | set_traceframe_num (target_frameno); |
d5551862 | 1842 | set_tracepoint_num (tp ? tp->number : target_tracept); |
c906108c | 1843 | if (target_frameno == -1) |
fb14de7b | 1844 | set_traceframe_context (NULL); |
c906108c | 1845 | else |
fb14de7b | 1846 | set_traceframe_context (get_current_frame ()); |
c906108c | 1847 | |
f197e0f1 VP |
1848 | if (traceframe_number >= 0) |
1849 | { | |
1850 | /* Use different branches for MI and CLI to make CLI messages | |
1851 | i18n-eable. */ | |
1852 | if (ui_out_is_mi_like_p (uiout)) | |
1853 | { | |
1854 | ui_out_field_string (uiout, "found", "1"); | |
1855 | ui_out_field_int (uiout, "tracepoint", tracepoint_number); | |
1856 | ui_out_field_int (uiout, "traceframe", traceframe_number); | |
1857 | } | |
1858 | else | |
1859 | { | |
1860 | printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"), | |
1861 | traceframe_number, tracepoint_number); | |
1862 | } | |
1863 | } | |
1864 | else | |
1865 | { | |
1866 | if (ui_out_is_mi_like_p (uiout)) | |
1867 | ui_out_field_string (uiout, "found", "0"); | |
1868 | else | |
1869 | printf_unfiltered (_("No trace frame found")); | |
1870 | } | |
1871 | ||
00bf0b85 SS |
1872 | /* If we're in nonstop mode and getting out of looking at trace |
1873 | frames, there won't be any current frame to go back to and | |
1874 | display. */ | |
1875 | if (from_tty | |
1876 | && (has_stack_frames () || traceframe_number >= 0)) | |
c906108c | 1877 | { |
0faf0076 | 1878 | enum print_what print_what; |
c906108c SS |
1879 | |
1880 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1881 | whether we have made a transition from one function to |
1882 | another. If so, we'll print the "stack frame" (ie. the new | |
1883 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1884 | new source line. */ |
1885 | ||
1886 | if (frame_id_eq (old_frame_id, | |
1887 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1888 | print_what = SRC_LINE; |
c906108c | 1889 | else |
0faf0076 | 1890 | print_what = SRC_AND_LOC; |
c906108c | 1891 | |
b04f3ab4 | 1892 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1893 | do_displays (); |
1894 | } | |
1895 | } | |
1896 | ||
1897 | /* trace_find_command takes a trace frame number n, | |
1898 | sends "QTFrame:<n>" to the target, | |
1899 | and accepts a reply that may contain several optional pieces | |
1900 | of information: a frame number, a tracepoint number, and an | |
1901 | indication of whether this is a trap frame or a stepping frame. | |
1902 | ||
1903 | The minimal response is just "OK" (which indicates that the | |
1904 | target does not give us a frame number or a tracepoint number). | |
1905 | Instead of that, the target may send us a string containing | |
1906 | any combination of: | |
c5aa993b JM |
1907 | F<hexnum> (gives the selected frame number) |
1908 | T<hexnum> (gives the selected tracepoint number) | |
1909 | */ | |
c906108c SS |
1910 | |
1911 | /* tfind command */ | |
1912 | static void | |
fba45db2 | 1913 | trace_find_command (char *args, int from_tty) |
d183932d | 1914 | { /* this should only be called with a numeric argument */ |
c906108c | 1915 | int frameno = -1; |
c906108c | 1916 | |
00bf0b85 | 1917 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc SS |
1918 | error ("May not look at trace frames while trace is running."); |
1919 | ||
1920 | if (args == 0 || *args == 0) | |
1921 | { /* TFIND with no args means find NEXT trace frame. */ | |
1922 | if (traceframe_number == -1) | |
1923 | frameno = 0; /* "next" is first one */ | |
1924 | else | |
1925 | frameno = traceframe_number + 1; | |
1926 | } | |
1927 | else if (0 == strcmp (args, "-")) | |
c906108c | 1928 | { |
35b1e5cc SS |
1929 | if (traceframe_number == -1) |
1930 | error (_("not debugging trace buffer")); | |
1931 | else if (from_tty && traceframe_number == 0) | |
1932 | error (_("already at start of trace buffer")); | |
1933 | ||
1934 | frameno = traceframe_number - 1; | |
1935 | } | |
1936 | /* A hack to work around eval's need for fp to have been collected. */ | |
1937 | else if (0 == strcmp (args, "-1")) | |
1938 | frameno = -1; | |
1939 | else | |
1940 | frameno = parse_and_eval_long (args); | |
c906108c | 1941 | |
35b1e5cc SS |
1942 | if (frameno < -1) |
1943 | error (_("invalid input (%d is less than zero)"), frameno); | |
c906108c | 1944 | |
f197e0f1 | 1945 | tfind_1 (tfind_number, frameno, 0, 0, from_tty); |
c906108c SS |
1946 | } |
1947 | ||
1948 | /* tfind end */ | |
1949 | static void | |
fba45db2 | 1950 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1951 | { |
1952 | trace_find_command ("-1", from_tty); | |
1953 | } | |
1954 | ||
1955 | /* tfind none */ | |
1956 | static void | |
fba45db2 | 1957 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1958 | { |
1959 | trace_find_command ("-1", from_tty); | |
1960 | } | |
1961 | ||
1962 | /* tfind start */ | |
1963 | static void | |
fba45db2 | 1964 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1965 | { |
1966 | trace_find_command ("0", from_tty); | |
1967 | } | |
1968 | ||
1969 | /* tfind pc command */ | |
1970 | static void | |
fba45db2 | 1971 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1972 | { |
c906108c | 1973 | CORE_ADDR pc; |
104c1213 | 1974 | char tmp[40]; |
c906108c | 1975 | |
00bf0b85 | 1976 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1977 | error ("May not look at trace frames while trace is running."); |
c906108c | 1978 | |
35b1e5cc SS |
1979 | if (args == 0 || *args == 0) |
1980 | pc = regcache_read_pc (get_current_regcache ()); | |
c906108c | 1981 | else |
35b1e5cc SS |
1982 | pc = parse_and_eval_address (args); |
1983 | ||
f197e0f1 | 1984 | tfind_1 (tfind_pc, 0, pc, 0, from_tty); |
c906108c SS |
1985 | } |
1986 | ||
1987 | /* tfind tracepoint command */ | |
1988 | static void | |
fba45db2 | 1989 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1990 | { |
c906108c | 1991 | int tdp; |
d5551862 | 1992 | struct breakpoint *tp; |
c906108c | 1993 | |
00bf0b85 | 1994 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 1995 | error ("May not look at trace frames while trace is running."); |
383e5f85 | 1996 | |
35b1e5cc SS |
1997 | if (args == 0 || *args == 0) |
1998 | { | |
1999 | if (tracepoint_number == -1) | |
2000 | error (_("No current tracepoint -- please supply an argument.")); | |
c906108c | 2001 | else |
35b1e5cc | 2002 | tdp = tracepoint_number; /* default is current TDP */ |
c906108c SS |
2003 | } |
2004 | else | |
35b1e5cc SS |
2005 | tdp = parse_and_eval_long (args); |
2006 | ||
2007 | /* If we have the tracepoint on hand, use the number that the | |
2008 | target knows about (which may be different if we disconnected | |
2009 | and reconnected). */ | |
2010 | tp = get_tracepoint (tdp); | |
2011 | if (tp) | |
2012 | tdp = tp->number_on_target; | |
2013 | ||
f197e0f1 | 2014 | tfind_1 (tfind_tp, tdp, 0, 0, from_tty); |
c906108c SS |
2015 | } |
2016 | ||
2017 | /* TFIND LINE command: | |
c5aa993b | 2018 | |
c906108c | 2019 | This command will take a sourceline for argument, just like BREAK |
d183932d | 2020 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 2021 | |
c906108c SS |
2022 | With no argument, this command will find the next trace frame |
2023 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
2024 | ||
2025 | static void | |
fba45db2 | 2026 | trace_find_line_command (char *args, int from_tty) |
d183932d | 2027 | { |
c906108c SS |
2028 | static CORE_ADDR start_pc, end_pc; |
2029 | struct symtabs_and_lines sals; | |
2030 | struct symtab_and_line sal; | |
c906108c | 2031 | struct cleanup *old_chain; |
104c1213 | 2032 | char startpc_str[40], endpc_str[40]; |
c906108c | 2033 | |
00bf0b85 | 2034 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2035 | error ("May not look at trace frames while trace is running."); |
5af949e3 | 2036 | |
35b1e5cc SS |
2037 | if (args == 0 || *args == 0) |
2038 | { | |
2039 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); | |
2040 | sals.nelts = 1; | |
2041 | sals.sals = (struct symtab_and_line *) | |
2042 | xmalloc (sizeof (struct symtab_and_line)); | |
2043 | sals.sals[0] = sal; | |
2044 | } | |
2045 | else | |
2046 | { | |
2047 | sals = decode_line_spec (args, 1); | |
2048 | sal = sals.sals[0]; | |
2049 | } | |
2050 | ||
2051 | old_chain = make_cleanup (xfree, sals.sals); | |
2052 | if (sal.symtab == 0) | |
2053 | { | |
2054 | printf_filtered ("TFIND: No line number information available"); | |
2055 | if (sal.pc != 0) | |
c906108c | 2056 | { |
35b1e5cc SS |
2057 | /* This is useful for "info line *0x7f34". If we can't |
2058 | tell the user about a source line, at least let them | |
2059 | have the symbolic address. */ | |
2060 | printf_filtered (" for address "); | |
2061 | wrap_here (" "); | |
2062 | print_address (get_current_arch (), sal.pc, gdb_stdout); | |
2063 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
2064 | } | |
2065 | else | |
2066 | { | |
2067 | printf_filtered (".\n"); | |
2068 | return; /* No line, no PC; what can we do? */ | |
2069 | } | |
c906108c | 2070 | } |
35b1e5cc SS |
2071 | else if (sal.line > 0 |
2072 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
2073 | { | |
2074 | if (start_pc == end_pc) | |
2075 | { | |
2076 | printf_filtered ("Line %d of \"%s\"", | |
2077 | sal.line, sal.symtab->filename); | |
2078 | wrap_here (" "); | |
2079 | printf_filtered (" is at address "); | |
2080 | print_address (get_current_arch (), start_pc, gdb_stdout); | |
2081 | wrap_here (" "); | |
2082 | printf_filtered (" but contains no code.\n"); | |
2083 | sal = find_pc_line (start_pc, 0); | |
2084 | if (sal.line > 0 | |
2085 | && find_line_pc_range (sal, &start_pc, &end_pc) | |
2086 | && start_pc != end_pc) | |
2087 | printf_filtered ("Attempting to find line %d instead.\n", | |
2088 | sal.line); | |
2089 | else | |
2090 | error (_("Cannot find a good line.")); | |
2091 | } | |
2092 | } | |
2093 | else | |
2094 | /* Is there any case in which we get here, and have an address | |
2095 | which the user would want to see? If we have debugging | |
2096 | symbols and no line numbers? */ | |
2097 | error (_("Line number %d is out of range for \"%s\"."), | |
2098 | sal.line, sal.symtab->filename); | |
2099 | ||
2100 | /* Find within range of stated line. */ | |
2101 | if (args && *args) | |
f197e0f1 | 2102 | tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty); |
c906108c | 2103 | else |
f197e0f1 | 2104 | tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty); |
35b1e5cc | 2105 | do_cleanups (old_chain); |
c906108c SS |
2106 | } |
2107 | ||
2108 | /* tfind range command */ | |
2109 | static void | |
fba45db2 | 2110 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 2111 | { |
c906108c | 2112 | static CORE_ADDR start, stop; |
104c1213 | 2113 | char start_str[40], stop_str[40]; |
c906108c SS |
2114 | char *tmp; |
2115 | ||
00bf0b85 | 2116 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2117 | error ("May not look at trace frames while trace is running."); |
c906108c | 2118 | |
35b1e5cc SS |
2119 | if (args == 0 || *args == 0) |
2120 | { /* XXX FIXME: what should default behavior be? */ | |
2121 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); | |
2122 | return; | |
2123 | } | |
c906108c | 2124 | |
35b1e5cc SS |
2125 | if (0 != (tmp = strchr (args, ','))) |
2126 | { | |
2127 | *tmp++ = '\0'; /* terminate start address */ | |
2128 | while (isspace ((int) *tmp)) | |
2129 | tmp++; | |
2130 | start = parse_and_eval_address (args); | |
2131 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2132 | } |
2133 | else | |
35b1e5cc SS |
2134 | { /* no explicit end address? */ |
2135 | start = parse_and_eval_address (args); | |
2136 | stop = start + 1; /* ??? */ | |
2137 | } | |
2138 | ||
f197e0f1 | 2139 | tfind_1 (tfind_range, 0, start, stop, from_tty); |
c906108c SS |
2140 | } |
2141 | ||
2142 | /* tfind outside command */ | |
2143 | static void | |
fba45db2 | 2144 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 2145 | { |
c906108c | 2146 | CORE_ADDR start, stop; |
104c1213 | 2147 | char start_str[40], stop_str[40]; |
c906108c SS |
2148 | char *tmp; |
2149 | ||
00bf0b85 | 2150 | if (current_trace_status ()->running && !current_trace_status ()->from_file) |
35b1e5cc | 2151 | error ("May not look at trace frames while trace is running."); |
c906108c | 2152 | |
35b1e5cc SS |
2153 | if (args == 0 || *args == 0) |
2154 | { /* XXX FIXME: what should default behavior be? */ | |
2155 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); | |
2156 | return; | |
2157 | } | |
c906108c | 2158 | |
35b1e5cc SS |
2159 | if (0 != (tmp = strchr (args, ','))) |
2160 | { | |
2161 | *tmp++ = '\0'; /* terminate start address */ | |
2162 | while (isspace ((int) *tmp)) | |
2163 | tmp++; | |
2164 | start = parse_and_eval_address (args); | |
2165 | stop = parse_and_eval_address (tmp); | |
c906108c SS |
2166 | } |
2167 | else | |
35b1e5cc SS |
2168 | { /* no explicit end address? */ |
2169 | start = parse_and_eval_address (args); | |
2170 | stop = start + 1; /* ??? */ | |
2171 | } | |
2172 | ||
f197e0f1 | 2173 | tfind_1 (tfind_outside, 0, start, stop, from_tty); |
c906108c SS |
2174 | } |
2175 | ||
c906108c SS |
2176 | /* info scope command: list the locals for a scope. */ |
2177 | static void | |
fba45db2 | 2178 | scope_info (char *args, int from_tty) |
c906108c | 2179 | { |
c906108c SS |
2180 | struct symtabs_and_lines sals; |
2181 | struct symbol *sym; | |
2182 | struct minimal_symbol *msym; | |
2183 | struct block *block; | |
2184 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
2185 | struct dict_iterator iter; |
2186 | int j, count = 0; | |
768a979c UW |
2187 | struct gdbarch *gdbarch; |
2188 | int regno; | |
c906108c SS |
2189 | |
2190 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 2191 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 2192 | |
68219205 | 2193 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 2194 | if (sals.nelts == 0) |
450bd37b | 2195 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
2196 | |
2197 | /* Resolve line numbers to PC */ | |
2198 | resolve_sal_pc (&sals.sals[0]); | |
2199 | block = block_for_pc (sals.sals[0].pc); | |
2200 | ||
2201 | while (block != 0) | |
2202 | { | |
c5aa993b | 2203 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 2204 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 2205 | { |
c5aa993b | 2206 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
2207 | if (count == 0) |
2208 | printf_filtered ("Scope for %s:\n", save_args); | |
2209 | count++; | |
e88c90f2 | 2210 | |
3567439c | 2211 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 2212 | if (symname == NULL || *symname == '\0') |
c5aa993b | 2213 | continue; /* probably botched, certainly useless */ |
c906108c | 2214 | |
768a979c UW |
2215 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
2216 | ||
c906108c | 2217 | printf_filtered ("Symbol %s is ", symname); |
c5aa993b JM |
2218 | switch (SYMBOL_CLASS (sym)) |
2219 | { | |
2220 | default: | |
2221 | case LOC_UNDEF: /* messed up symbol? */ | |
2222 | printf_filtered ("a bogus symbol, class %d.\n", | |
2223 | SYMBOL_CLASS (sym)); | |
2224 | count--; /* don't count this one */ | |
2225 | continue; | |
2226 | case LOC_CONST: | |
104c1213 | 2227 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
2228 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
2229 | break; | |
2230 | case LOC_CONST_BYTES: | |
2231 | printf_filtered ("constant bytes: "); | |
2232 | if (SYMBOL_TYPE (sym)) | |
2233 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
2234 | fprintf_filtered (gdb_stdout, " %02x", | |
2235 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
2236 | break; | |
2237 | case LOC_STATIC: | |
2238 | printf_filtered ("in static storage at address "); | |
5af949e3 UW |
2239 | printf_filtered ("%s", paddress (gdbarch, |
2240 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2241 | break; |
2242 | case LOC_REGISTER: | |
768a979c UW |
2243 | /* GDBARCH is the architecture associated with the objfile |
2244 | the symbol is defined in; the target architecture may be | |
2245 | different, and may provide additional registers. However, | |
2246 | we do not know the target architecture at this point. | |
2247 | We assume the objfile architecture will contain all the | |
2248 | standard registers that occur in debug info in that | |
2249 | objfile. */ | |
2250 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
2251 | ||
2a2d4dc3 AS |
2252 | if (SYMBOL_IS_ARGUMENT (sym)) |
2253 | printf_filtered ("an argument in register $%s", | |
768a979c | 2254 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
2255 | else |
2256 | printf_filtered ("a local variable in register $%s", | |
768a979c | 2257 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2258 | break; |
2259 | case LOC_ARG: | |
c5aa993b JM |
2260 | printf_filtered ("an argument at stack/frame offset %ld", |
2261 | SYMBOL_VALUE (sym)); | |
2262 | break; | |
2263 | case LOC_LOCAL: | |
2264 | printf_filtered ("a local variable at frame offset %ld", | |
2265 | SYMBOL_VALUE (sym)); | |
2266 | break; | |
2267 | case LOC_REF_ARG: | |
2268 | printf_filtered ("a reference argument at offset %ld", | |
2269 | SYMBOL_VALUE (sym)); | |
2270 | break; | |
c5aa993b | 2271 | case LOC_REGPARM_ADDR: |
768a979c UW |
2272 | /* Note comment at LOC_REGISTER. */ |
2273 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
c5aa993b | 2274 | printf_filtered ("the address of an argument, in register $%s", |
768a979c | 2275 | gdbarch_register_name (gdbarch, regno)); |
c5aa993b JM |
2276 | break; |
2277 | case LOC_TYPEDEF: | |
2278 | printf_filtered ("a typedef.\n"); | |
2279 | continue; | |
2280 | case LOC_LABEL: | |
2281 | printf_filtered ("a label at address "); | |
5af949e3 UW |
2282 | printf_filtered ("%s", paddress (gdbarch, |
2283 | SYMBOL_VALUE_ADDRESS (sym))); | |
c5aa993b JM |
2284 | break; |
2285 | case LOC_BLOCK: | |
2286 | printf_filtered ("a function at address "); | |
5af949e3 UW |
2287 | printf_filtered ("%s", |
2288 | paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
c5aa993b | 2289 | break; |
c5aa993b | 2290 | case LOC_UNRESOLVED: |
3567439c | 2291 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 2292 | NULL, NULL); |
c5aa993b JM |
2293 | if (msym == NULL) |
2294 | printf_filtered ("Unresolved Static"); | |
2295 | else | |
2296 | { | |
2297 | printf_filtered ("static storage at address "); | |
5af949e3 UW |
2298 | printf_filtered ("%s", |
2299 | paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym))); | |
c5aa993b JM |
2300 | } |
2301 | break; | |
2302 | case LOC_OPTIMIZED_OUT: | |
2303 | printf_filtered ("optimized out.\n"); | |
2304 | continue; | |
450bd37b | 2305 | case LOC_COMPUTED: |
768a979c | 2306 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
450bd37b | 2307 | break; |
c5aa993b | 2308 | } |
c906108c | 2309 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 2310 | printf_filtered (", length %d.\n", |
450bd37b | 2311 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
2312 | } |
2313 | if (BLOCK_FUNCTION (block)) | |
2314 | break; | |
2315 | else | |
2316 | block = BLOCK_SUPERBLOCK (block); | |
2317 | } | |
2318 | if (count <= 0) | |
2319 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
2320 | save_args); | |
2321 | } | |
2322 | ||
2323 | /* worker function (cleanup) */ | |
2324 | static void | |
710b33bd | 2325 | replace_comma (void *data) |
c906108c | 2326 | { |
710b33bd | 2327 | char *comma = data; |
c906108c SS |
2328 | *comma = ','; |
2329 | } | |
2330 | ||
2331 | /* tdump command */ | |
2332 | static void | |
fba45db2 | 2333 | trace_dump_command (char *args, int from_tty) |
c906108c | 2334 | { |
515630c5 UW |
2335 | struct regcache *regcache; |
2336 | struct gdbarch *gdbarch; | |
1042e4c0 | 2337 | struct breakpoint *t; |
a7bdde9e | 2338 | struct command_line *action; |
c5aa993b JM |
2339 | char *action_exp, *next_comma; |
2340 | struct cleanup *old_cleanups; | |
2341 | int stepping_actions = 0; | |
2342 | int stepping_frame = 0; | |
9355b391 | 2343 | struct bp_location *loc; |
c906108c | 2344 | |
c906108c SS |
2345 | if (tracepoint_number == -1) |
2346 | { | |
8a3fe4f8 | 2347 | warning (_("No current trace frame.")); |
c906108c SS |
2348 | return; |
2349 | } | |
2350 | ||
1042e4c0 | 2351 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2352 | |
2353 | if (t == NULL) | |
8a3fe4f8 | 2354 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2355 | tracepoint_number); |
2356 | ||
2357 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2358 | ||
c5aa993b | 2359 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2360 | tracepoint_number, traceframe_number); |
2361 | ||
2362 | /* The current frame is a trap frame if the frame PC is equal | |
2363 | to the tracepoint PC. If not, then the current frame was | |
2364 | collected during single-stepping. */ | |
2365 | ||
515630c5 UW |
2366 | regcache = get_current_regcache (); |
2367 | gdbarch = get_regcache_arch (regcache); | |
2368 | ||
9355b391 SS |
2369 | /* If the traceframe's address matches any of the tracepoint's |
2370 | locations, assume it is a direct hit rather than a while-stepping | |
2371 | frame. (FIXME this is not reliable, should record each frame's | |
2372 | type.) */ | |
2373 | stepping_frame = 1; | |
2374 | for (loc = t->loc; loc; loc = loc->next) | |
2375 | if (loc->address == regcache_read_pc (regcache)) | |
2376 | stepping_frame = 0; | |
c906108c | 2377 | |
9add0f1b | 2378 | for (action = t->commands->commands; action; action = action->next) |
c906108c SS |
2379 | { |
2380 | struct cmd_list_element *cmd; | |
2381 | ||
c5aa993b | 2382 | QUIT; /* allow user to bail out with ^C */ |
a7bdde9e | 2383 | action_exp = action->line; |
104c1213 | 2384 | while (isspace ((int) *action_exp)) |
c906108c SS |
2385 | action_exp++; |
2386 | ||
2387 | /* The collection actions to be done while stepping are | |
c5aa993b | 2388 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2389 | |
2390 | if (*action_exp == '#') /* comment line */ | |
2391 | continue; | |
2392 | ||
2393 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2394 | if (cmd == 0) | |
8a3fe4f8 | 2395 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2396 | |
bbaca940 | 2397 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2398 | stepping_actions = 1; |
bbaca940 | 2399 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2400 | stepping_actions = 0; |
bbaca940 | 2401 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2402 | { |
2403 | /* Display the collected data. | |
d183932d MS |
2404 | For the trap frame, display only what was collected at |
2405 | the trap. Likewise for stepping frames, display only | |
2406 | what was collected while stepping. This means that the | |
2407 | two boolean variables, STEPPING_FRAME and | |
2408 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2409 | if (stepping_frame == stepping_actions) |
2410 | { | |
c5aa993b JM |
2411 | do |
2412 | { /* repeat over a comma-separated list */ | |
2413 | QUIT; /* allow user to bail out with ^C */ | |
2414 | if (*action_exp == ',') | |
2415 | action_exp++; | |
104c1213 | 2416 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2417 | action_exp++; |
2418 | ||
2419 | next_comma = strchr (action_exp, ','); | |
2420 | ||
2421 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2422 | registers_info (NULL, from_tty); | |
2423 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2424 | locals_info (NULL, from_tty); | |
2425 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2426 | args_info (NULL, from_tty); | |
2427 | else | |
2428 | { /* variable */ | |
2429 | if (next_comma) | |
2430 | { | |
2431 | make_cleanup (replace_comma, next_comma); | |
2432 | *next_comma = '\0'; | |
2433 | } | |
2434 | printf_filtered ("%s = ", action_exp); | |
2435 | output_command (action_exp, from_tty); | |
2436 | printf_filtered ("\n"); | |
2437 | } | |
2438 | if (next_comma) | |
2439 | *next_comma = ','; | |
2440 | action_exp = next_comma; | |
2441 | } | |
2442 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2443 | } |
2444 | } | |
2445 | } | |
2446 | discard_cleanups (old_cleanups); | |
2447 | } | |
2448 | ||
00bf0b85 SS |
2449 | extern int trace_regblock_size; |
2450 | ||
011aacb0 VP |
2451 | /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is |
2452 | non-zero, the save is performed on the target, otherwise GDB obtains all | |
2453 | trace data and saves it locally. */ | |
2454 | ||
2455 | void | |
2456 | trace_save (const char *filename, int target_does_save) | |
00bf0b85 | 2457 | { |
00bf0b85 | 2458 | struct cleanup *cleanup; |
011aacb0 | 2459 | char *pathname; |
00bf0b85 SS |
2460 | struct trace_status *ts = current_trace_status (); |
2461 | int err, status; | |
2462 | FILE *fp; | |
2463 | struct uploaded_tp *uploaded_tps = NULL, *utp; | |
2464 | struct uploaded_tsv *uploaded_tsvs = NULL, *utsv; | |
2465 | int a; | |
2466 | LONGEST gotten = 0; | |
2467 | ULONGEST offset = 0; | |
2468 | #define MAX_TRACE_UPLOAD 2000 | |
2469 | gdb_byte buf[MAX_TRACE_UPLOAD]; | |
98e03262 | 2470 | int written; |
00bf0b85 | 2471 | |
00bf0b85 SS |
2472 | /* If the target is to save the data to a file on its own, then just |
2473 | send the command and be done with it. */ | |
2474 | if (target_does_save) | |
2475 | { | |
2476 | err = target_save_trace_data (filename); | |
2477 | if (err < 0) | |
2478 | error (_("Target failed to save trace data to '%s'."), | |
2479 | filename); | |
2480 | return; | |
2481 | } | |
2482 | ||
2483 | /* Get the trace status first before opening the file, so if the | |
2484 | target is losing, we can get out without touching files. */ | |
2485 | status = target_get_trace_status (ts); | |
2486 | ||
011aacb0 | 2487 | pathname = tilde_expand (filename); |
00bf0b85 SS |
2488 | cleanup = make_cleanup (xfree, pathname); |
2489 | ||
2490 | fp = fopen (pathname, "w"); | |
2491 | if (!fp) | |
2492 | error (_("Unable to open file '%s' for saving trace data (%s)"), | |
011aacb0 | 2493 | filename, safe_strerror (errno)); |
00bf0b85 SS |
2494 | make_cleanup_fclose (fp); |
2495 | ||
2496 | /* Write a file header, with a high-bit-set char to indicate a | |
2497 | binary file, plus a hint as what this file is, and a version | |
2498 | number in case of future needs. */ | |
98e03262 SS |
2499 | written = fwrite ("\x7fTRACE0\n", 8, 1, fp); |
2500 | if (written < 8) | |
2501 | perror_with_name (pathname); | |
00bf0b85 SS |
2502 | |
2503 | /* Write descriptive info. */ | |
2504 | ||
2505 | /* Write out the size of a register block. */ | |
2506 | fprintf (fp, "R %x\n", trace_regblock_size); | |
2507 | ||
2508 | /* Write out status of the tracing run (aka "tstatus" info). */ | |
6c28cbf2 SS |
2509 | fprintf (fp, "status %c;%s", |
2510 | (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]); | |
6c28cbf2 SS |
2511 | if (ts->stop_reason == tracepoint_error) |
2512 | { | |
2513 | char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1); | |
2514 | bin2hex ((gdb_byte *) ts->error_desc, buf, 0); | |
610197fd | 2515 | fprintf (fp, ":%s", buf); |
6c28cbf2 SS |
2516 | } |
2517 | fprintf (fp, ":%x", ts->stopping_tracepoint); | |
4daf5ac0 SS |
2518 | if (ts->traceframe_count >= 0) |
2519 | fprintf (fp, ";tframes:%x", ts->traceframe_count); | |
2520 | if (ts->traceframes_created >= 0) | |
2521 | fprintf (fp, ";tcreated:%x", ts->traceframes_created); | |
2522 | if (ts->buffer_free >= 0) | |
2523 | fprintf (fp, ";tfree:%x", ts->buffer_free); | |
2524 | if (ts->buffer_size >= 0) | |
2525 | fprintf (fp, ";tsize:%x", ts->buffer_size); | |
2526 | fprintf (fp, "\n"); | |
00bf0b85 SS |
2527 | |
2528 | /* Note that we want to upload tracepoints and save those, rather | |
2529 | than simply writing out the local ones, because the user may have | |
2530 | changed tracepoints in GDB in preparation for a future tracing | |
2531 | run, or maybe just mass-deleted all types of breakpoints as part | |
2532 | of cleaning up. So as not to contaminate the session, leave the | |
2533 | data in its uploaded form, don't make into real tracepoints. */ | |
2534 | ||
2535 | /* Get trace state variables first, they may be checked when parsing | |
2536 | uploaded commands. */ | |
2537 | ||
2538 | target_upload_trace_state_variables (&uploaded_tsvs); | |
2539 | ||
2540 | for (utsv = uploaded_tsvs; utsv; utsv = utsv->next) | |
2541 | { | |
2542 | char *buf = ""; | |
2543 | ||
2544 | if (utsv->name) | |
2545 | { | |
2546 | buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1); | |
2547 | bin2hex ((gdb_byte *) (utsv->name), buf, 0); | |
2548 | } | |
2549 | ||
2550 | fprintf (fp, "tsv %x:%s:%x:%s\n", | |
2551 | utsv->number, phex_nz (utsv->initial_value, 8), | |
2552 | utsv->builtin, buf); | |
2553 | ||
2554 | if (utsv->name) | |
2555 | xfree (buf); | |
2556 | } | |
2557 | ||
2558 | free_uploaded_tsvs (&uploaded_tsvs); | |
2559 | ||
2560 | target_upload_tracepoints (&uploaded_tps); | |
2561 | ||
2562 | for (utp = uploaded_tps; utp; utp = utp->next) | |
2563 | { | |
2564 | fprintf (fp, "tp T%x:%s:%c:%x:%x", | |
2565 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2566 | (utp->enabled ? 'E' : 'D'), utp->step, utp->pass); | |
2567 | if (utp->type == bp_fast_tracepoint) | |
2568 | fprintf (fp, ":F%x", utp->orig_size); | |
2569 | if (utp->cond) | |
2570 | fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2, | |
2571 | utp->cond); | |
2572 | fprintf (fp, "\n"); | |
2573 | for (a = 0; a < utp->numactions; ++a) | |
2574 | fprintf (fp, "tp A%x:%s:%s\n", | |
2575 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2576 | utp->actions[a]); | |
2577 | for (a = 0; a < utp->num_step_actions; ++a) | |
2578 | fprintf (fp, "tp S%x:%s:%s\n", | |
2579 | utp->number, phex_nz (utp->addr, sizeof (utp->addr)), | |
2580 | utp->step_actions[a]); | |
2581 | } | |
2582 | ||
2583 | free_uploaded_tps (&uploaded_tps); | |
2584 | ||
2585 | /* Mark the end of the definition section. */ | |
2586 | fprintf (fp, "\n"); | |
2587 | ||
2588 | /* Get and write the trace data proper. We ask for big blocks, in | |
2589 | the hopes of efficiency, but will take less if the target has | |
2590 | packet size limitations or some such. */ | |
2591 | while (1) | |
2592 | { | |
2593 | gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD); | |
2594 | if (gotten < 0) | |
2595 | error (_("Failure to get requested trace buffer data")); | |
2596 | /* No more data is forthcoming, we're done. */ | |
2597 | if (gotten == 0) | |
2598 | break; | |
98e03262 SS |
2599 | written = fwrite (buf, gotten, 1, fp); |
2600 | if (written < gotten) | |
2601 | perror_with_name (pathname); | |
00bf0b85 SS |
2602 | offset += gotten; |
2603 | } | |
2604 | ||
2605 | /* Mark the end of trace data. */ | |
98e03262 SS |
2606 | written = fwrite (&gotten, 4, 1, fp); |
2607 | if (written < 4) | |
2608 | perror_with_name (pathname); | |
00bf0b85 SS |
2609 | |
2610 | do_cleanups (cleanup); | |
011aacb0 VP |
2611 | } |
2612 | ||
2613 | static void | |
2614 | trace_save_command (char *args, int from_tty) | |
2615 | { | |
2616 | int target_does_save = 0; | |
2617 | char **argv; | |
2618 | char *filename = NULL; | |
2619 | struct cleanup *back_to; | |
2620 | ||
2621 | if (args == NULL) | |
2622 | error_no_arg (_("file in which to save trace data")); | |
2623 | ||
2624 | argv = gdb_buildargv (args); | |
2625 | back_to = make_cleanup_freeargv (argv); | |
2626 | ||
2627 | for (; *argv; ++argv) | |
2628 | { | |
2629 | if (strcmp (*argv, "-r") == 0) | |
2630 | target_does_save = 1; | |
2631 | else if (**argv == '-') | |
2632 | error (_("unknown option `%s'"), *argv); | |
2633 | else | |
2634 | filename = *argv; | |
2635 | } | |
2636 | ||
2637 | if (!filename) | |
2638 | error_no_arg (_("file in which to save trace data")); | |
2639 | ||
2640 | trace_save (filename, target_does_save); | |
2641 | ||
00bf0b85 SS |
2642 | if (from_tty) |
2643 | printf_filtered (_("Trace data saved to file '%s'.\n"), args); | |
011aacb0 VP |
2644 | |
2645 | do_cleanups (back_to); | |
00bf0b85 SS |
2646 | } |
2647 | ||
d5551862 SS |
2648 | /* Tell the target what to do with an ongoing tracing run if GDB |
2649 | disconnects for some reason. */ | |
2650 | ||
2651 | void | |
2652 | send_disconnected_tracing_value (int value) | |
2653 | { | |
35b1e5cc | 2654 | target_set_disconnected_tracing (value); |
d5551862 SS |
2655 | } |
2656 | ||
2657 | static void | |
2658 | set_disconnected_tracing (char *args, int from_tty, | |
2659 | struct cmd_list_element *c) | |
2660 | { | |
2661 | send_disconnected_tracing_value (disconnected_tracing); | |
2662 | } | |
2663 | ||
4daf5ac0 SS |
2664 | static void |
2665 | set_circular_trace_buffer (char *args, int from_tty, | |
2666 | struct cmd_list_element *c) | |
2667 | { | |
2668 | target_set_circular_trace_buffer (circular_trace_buffer); | |
2669 | } | |
2670 | ||
c906108c SS |
2671 | /* Convert the memory pointed to by mem into hex, placing result in buf. |
2672 | * Return a pointer to the last char put in buf (null) | |
2673 | * "stolen" from sparc-stub.c | |
2674 | */ | |
2675 | ||
c5aa993b | 2676 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2677 | |
47b667de AC |
2678 | static char * |
2679 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2680 | { |
47b667de | 2681 | gdb_byte ch; |
c906108c SS |
2682 | |
2683 | while (count-- > 0) | |
2684 | { | |
2685 | ch = *mem++; | |
2686 | ||
2687 | *buf++ = hexchars[ch >> 4]; | |
2688 | *buf++ = hexchars[ch & 0xf]; | |
2689 | } | |
2690 | ||
2691 | *buf = 0; | |
2692 | ||
2693 | return buf; | |
2694 | } | |
2695 | ||
c5aa993b | 2696 | int |
fba45db2 | 2697 | get_traceframe_number (void) |
c906108c | 2698 | { |
c5aa993b | 2699 | return traceframe_number; |
c906108c SS |
2700 | } |
2701 | ||
06cd862c PA |
2702 | /* Make the traceframe NUM be the current trace frame. Does nothing |
2703 | if NUM is already current. */ | |
2704 | ||
2705 | void | |
2706 | set_traceframe_number (int num) | |
2707 | { | |
2708 | int newnum; | |
2709 | ||
2710 | if (traceframe_number == num) | |
2711 | { | |
2712 | /* Nothing to do. */ | |
2713 | return; | |
2714 | } | |
2715 | ||
2716 | newnum = target_trace_find (tfind_number, num, 0, 0, NULL); | |
2717 | ||
2718 | if (newnum != num) | |
2719 | warning (_("could not change traceframe")); | |
2720 | ||
2721 | traceframe_number = newnum; | |
2722 | ||
2723 | /* Changing the traceframe changes our view of registers and of the | |
2724 | frame chain. */ | |
2725 | registers_changed (); | |
2726 | } | |
2727 | ||
2728 | /* A cleanup used when switching away and back from tfind mode. */ | |
2729 | ||
2730 | struct current_traceframe_cleanup | |
2731 | { | |
2732 | /* The traceframe we were inspecting. */ | |
2733 | int traceframe_number; | |
2734 | }; | |
2735 | ||
2736 | static void | |
2737 | do_restore_current_traceframe_cleanup (void *arg) | |
2738 | { | |
2739 | struct current_traceframe_cleanup *old = arg; | |
2740 | ||
2741 | set_traceframe_number (old->traceframe_number); | |
2742 | } | |
2743 | ||
2744 | static void | |
2745 | restore_current_traceframe_cleanup_dtor (void *arg) | |
2746 | { | |
2747 | struct current_traceframe_cleanup *old = arg; | |
2748 | ||
2749 | xfree (old); | |
2750 | } | |
2751 | ||
2752 | struct cleanup * | |
2753 | make_cleanup_restore_current_traceframe (void) | |
2754 | { | |
2755 | struct current_traceframe_cleanup *old; | |
2756 | ||
2757 | old = xmalloc (sizeof (struct current_traceframe_cleanup)); | |
2758 | old->traceframe_number = traceframe_number; | |
2759 | ||
2760 | return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old, | |
2761 | restore_current_traceframe_cleanup_dtor); | |
2762 | } | |
00bf0b85 SS |
2763 | |
2764 | /* Given a number and address, return an uploaded tracepoint with that | |
2765 | number, creating if necessary. */ | |
2766 | ||
2767 | struct uploaded_tp * | |
2768 | get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp) | |
2769 | { | |
2770 | struct uploaded_tp *utp; | |
2771 | ||
2772 | for (utp = *utpp; utp; utp = utp->next) | |
2773 | if (utp->number == num && utp->addr == addr) | |
2774 | return utp; | |
2775 | utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp)); | |
2776 | memset (utp, 0, sizeof (struct uploaded_tp)); | |
2777 | utp->number = num; | |
2778 | utp->addr = addr; | |
2779 | utp->next = *utpp; | |
2780 | *utpp = utp; | |
2781 | return utp; | |
2782 | } | |
2783 | ||
2784 | static void | |
2785 | free_uploaded_tps (struct uploaded_tp **utpp) | |
2786 | { | |
2787 | struct uploaded_tp *next_one; | |
2788 | ||
2789 | while (*utpp) | |
2790 | { | |
2791 | next_one = (*utpp)->next; | |
2792 | xfree (*utpp); | |
2793 | *utpp = next_one; | |
2794 | } | |
2795 | } | |
2796 | ||
2797 | /* Given a number and address, return an uploaded tracepoint with that | |
2798 | number, creating if necessary. */ | |
2799 | ||
2800 | struct uploaded_tsv * | |
2801 | get_uploaded_tsv (int num, struct uploaded_tsv **utsvp) | |
2802 | { | |
2803 | struct uploaded_tsv *utsv; | |
2804 | ||
2805 | for (utsv = *utsvp; utsv; utsv = utsv->next) | |
2806 | if (utsv->number == num) | |
2807 | return utsv; | |
2808 | utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv)); | |
2809 | memset (utsv, 0, sizeof (struct uploaded_tsv)); | |
2810 | utsv->number = num; | |
2811 | utsv->next = *utsvp; | |
2812 | *utsvp = utsv; | |
2813 | return utsv; | |
2814 | } | |
2815 | ||
2816 | static void | |
2817 | free_uploaded_tsvs (struct uploaded_tsv **utsvp) | |
2818 | { | |
2819 | struct uploaded_tsv *next_one; | |
2820 | ||
2821 | while (*utsvp) | |
2822 | { | |
2823 | next_one = (*utsvp)->next; | |
2824 | xfree (*utsvp); | |
2825 | *utsvp = next_one; | |
2826 | } | |
2827 | } | |
2828 | ||
2829 | /* Look for an existing tracepoint that seems similar enough to the | |
2830 | uploaded one. Enablement isn't compared, because the user can | |
2831 | toggle that freely, and may have done so in anticipation of the | |
2832 | next trace run. */ | |
2833 | ||
2834 | struct breakpoint * | |
2835 | find_matching_tracepoint (struct uploaded_tp *utp) | |
2836 | { | |
2837 | VEC(breakpoint_p) *tp_vec = all_tracepoints (); | |
2838 | int ix; | |
2839 | struct breakpoint *t; | |
2840 | struct bp_location *loc; | |
2841 | ||
2842 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
2843 | { | |
2844 | if (t->type == utp->type | |
2845 | && t->step_count == utp->step | |
2846 | && t->pass_count == utp->pass | |
2847 | /* FIXME also test conditionals and actions */ | |
2848 | ) | |
2849 | { | |
2850 | /* Scan the locations for an address match. */ | |
2851 | for (loc = t->loc; loc; loc = loc->next) | |
2852 | { | |
2853 | if (loc->address == utp->addr) | |
2854 | return t; | |
2855 | } | |
2856 | } | |
2857 | } | |
2858 | return NULL; | |
2859 | } | |
2860 | ||
2861 | /* Given a list of tracepoints uploaded from a target, attempt to | |
2862 | match them up with existing tracepoints, and create new ones if not | |
2863 | found. */ | |
2864 | ||
2865 | void | |
2866 | merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps) | |
2867 | { | |
2868 | struct uploaded_tp *utp; | |
2869 | struct breakpoint *t; | |
2870 | ||
2871 | /* Look for GDB tracepoints that match up with our uploaded versions. */ | |
2872 | for (utp = *uploaded_tps; utp; utp = utp->next) | |
2873 | { | |
2874 | t = find_matching_tracepoint (utp); | |
2875 | if (t) | |
2876 | printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"), | |
2877 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2878 | else | |
2879 | { | |
2880 | t = create_tracepoint_from_upload (utp); | |
2881 | if (t) | |
2882 | printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"), | |
2883 | t->number, utp->number, paddress (get_current_arch (), utp->addr)); | |
2884 | else | |
2885 | printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"), | |
2886 | utp->number, paddress (get_current_arch (), utp->addr)); | |
2887 | } | |
2888 | /* Whether found or created, record the number used by the | |
2889 | target, to help with mapping target tracepoints back to their | |
2890 | counterparts here. */ | |
2891 | if (t) | |
2892 | t->number_on_target = utp->number; | |
2893 | } | |
2894 | ||
2895 | free_uploaded_tps (uploaded_tps); | |
2896 | } | |
2897 | ||
2898 | /* Trace state variables don't have much to identify them beyond their | |
2899 | name, so just use that to detect matches. */ | |
2900 | ||
2901 | struct trace_state_variable * | |
2902 | find_matching_tsv (struct uploaded_tsv *utsv) | |
2903 | { | |
2904 | if (!utsv->name) | |
2905 | return NULL; | |
2906 | ||
2907 | return find_trace_state_variable (utsv->name); | |
2908 | } | |
2909 | ||
2910 | struct trace_state_variable * | |
2911 | create_tsv_from_upload (struct uploaded_tsv *utsv) | |
2912 | { | |
2913 | const char *namebase; | |
2914 | char buf[20]; | |
2915 | int try_num = 0; | |
2916 | struct trace_state_variable *tsv; | |
2917 | ||
2918 | if (utsv->name) | |
2919 | { | |
2920 | namebase = utsv->name; | |
2921 | sprintf (buf, "%s", namebase); | |
2922 | } | |
2923 | else | |
2924 | { | |
2925 | namebase = "__tsv"; | |
2926 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2927 | } | |
2928 | ||
2929 | /* Fish for a name that is not in use. */ | |
2930 | /* (should check against all internal vars?) */ | |
2931 | while (find_trace_state_variable (buf)) | |
2932 | sprintf (buf, "%s_%d", namebase, try_num++); | |
2933 | ||
2934 | /* We have an available name, create the variable. */ | |
2935 | tsv = create_trace_state_variable (xstrdup (buf)); | |
2936 | tsv->initial_value = utsv->initial_value; | |
2937 | tsv->builtin = utsv->builtin; | |
2938 | ||
2939 | return tsv; | |
2940 | } | |
2941 | ||
2942 | /* Given a list of uploaded trace state variables, try to match them | |
2943 | up with existing variables, or create additional ones. */ | |
2944 | ||
2945 | void | |
2946 | merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs) | |
2947 | { | |
2948 | int ix; | |
2949 | struct uploaded_tsv *utsv; | |
2950 | struct trace_state_variable *tsv; | |
2951 | int highest; | |
2952 | ||
2953 | /* Most likely some numbers will have to be reassigned as part of | |
2954 | the merge, so clear them all in anticipation. */ | |
2955 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2956 | tsv->number = 0; | |
2957 | ||
2958 | for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next) | |
2959 | { | |
2960 | tsv = find_matching_tsv (utsv); | |
2961 | if (tsv) | |
2962 | printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"), | |
2963 | tsv->name, utsv->number); | |
2964 | else | |
2965 | { | |
2966 | tsv = create_tsv_from_upload (utsv); | |
2967 | printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"), | |
2968 | tsv->name, utsv->number); | |
2969 | } | |
2970 | /* Give precedence to numberings that come from the target. */ | |
2971 | if (tsv) | |
2972 | tsv->number = utsv->number; | |
2973 | } | |
2974 | ||
2975 | /* Renumber everything that didn't get a target-assigned number. */ | |
2976 | highest = 0; | |
2977 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2978 | if (tsv->number > highest) | |
2979 | highest = tsv->number; | |
2980 | ||
2981 | ++highest; | |
2982 | for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix) | |
2983 | if (tsv->number == 0) | |
2984 | tsv->number = highest++; | |
2985 | ||
2986 | free_uploaded_tsvs (uploaded_tsvs); | |
2987 | } | |
2988 | ||
2989 | /* target tfile command */ | |
2990 | ||
2991 | struct target_ops tfile_ops; | |
2992 | ||
2993 | /* Fill in tfile_ops with its defined operations and properties. */ | |
2994 | ||
2995 | #define TRACE_HEADER_SIZE 8 | |
2996 | ||
98e03262 | 2997 | char *trace_filename; |
00bf0b85 SS |
2998 | int trace_fd = -1; |
2999 | off_t trace_frames_offset; | |
3000 | off_t cur_offset; | |
3001 | int cur_data_size; | |
3002 | int trace_regblock_size; | |
3003 | ||
3004 | static void tfile_interp_line (char *line, | |
3005 | struct uploaded_tp **utpp, | |
3006 | struct uploaded_tsv **utsvp); | |
3007 | ||
3008 | static void | |
3009 | tfile_open (char *filename, int from_tty) | |
3010 | { | |
3011 | char *temp; | |
3012 | struct cleanup *old_chain; | |
3013 | int flags; | |
3014 | int scratch_chan; | |
3015 | char header[TRACE_HEADER_SIZE]; | |
3016 | char linebuf[1000]; /* should be max remote packet size or so */ | |
3017 | char byte; | |
98e03262 | 3018 | int bytes, i, gotten; |
00bf0b85 SS |
3019 | struct trace_status *ts; |
3020 | struct uploaded_tp *uploaded_tps = NULL; | |
3021 | struct uploaded_tsv *uploaded_tsvs = NULL; | |
3022 | ||
3023 | target_preopen (from_tty); | |
3024 | if (!filename) | |
3025 | error (_("No trace file specified.")); | |
3026 | ||
3027 | filename = tilde_expand (filename); | |
3028 | if (!IS_ABSOLUTE_PATH(filename)) | |
3029 | { | |
3030 | temp = concat (current_directory, "/", filename, (char *)NULL); | |
3031 | xfree (filename); | |
3032 | filename = temp; | |
3033 | } | |
3034 | ||
3035 | old_chain = make_cleanup (xfree, filename); | |
3036 | ||
3037 | flags = O_BINARY | O_LARGEFILE; | |
3038 | flags |= O_RDONLY; | |
3039 | scratch_chan = open (filename, flags, 0); | |
3040 | if (scratch_chan < 0) | |
3041 | perror_with_name (filename); | |
3042 | ||
3043 | /* Looks semi-reasonable. Toss the old trace file and work on the new. */ | |
3044 | ||
3045 | discard_cleanups (old_chain); /* Don't free filename any more */ | |
3046 | unpush_target (&tfile_ops); | |
3047 | ||
3048 | push_target (&tfile_ops); | |
00bf0b85 | 3049 | |
98e03262 | 3050 | trace_filename = xstrdup (filename); |
00bf0b85 SS |
3051 | trace_fd = scratch_chan; |
3052 | ||
3053 | bytes = 0; | |
3054 | /* Read the file header and test for validity. */ | |
98e03262 SS |
3055 | gotten = read (trace_fd, &header, TRACE_HEADER_SIZE); |
3056 | if (gotten < 0) | |
3057 | perror_with_name (trace_filename); | |
3058 | else if (gotten < TRACE_HEADER_SIZE) | |
3059 | error (_("Premature end of file while reading trace file")); | |
3060 | ||
00bf0b85 SS |
3061 | bytes += TRACE_HEADER_SIZE; |
3062 | if (!(header[0] == 0x7f | |
3063 | && (strncmp (header + 1, "TRACE0\n", 7) == 0))) | |
3064 | error (_("File is not a valid trace file.")); | |
3065 | ||
3066 | trace_regblock_size = 0; | |
3067 | ts = current_trace_status (); | |
3068 | /* We know we're working with a file. */ | |
3069 | ts->from_file = 1; | |
3070 | /* Set defaults in case there is no status line. */ | |
3071 | ts->running_known = 0; | |
3072 | ts->stop_reason = trace_stop_reason_unknown; | |
3073 | ts->traceframe_count = -1; | |
3074 | ts->buffer_free = 0; | |
3075 | ||
3076 | /* Read through a section of newline-terminated lines that | |
3077 | define things like tracepoints. */ | |
3078 | i = 0; | |
3079 | while (1) | |
3080 | { | |
98e03262 SS |
3081 | gotten = read (trace_fd, &byte, 1); |
3082 | if (gotten < 0) | |
3083 | perror_with_name (trace_filename); | |
3084 | else if (gotten < 1) | |
3085 | error (_("Premature end of file while reading trace file")); | |
3086 | ||
00bf0b85 SS |
3087 | ++bytes; |
3088 | if (byte == '\n') | |
3089 | { | |
3090 | /* Empty line marks end of the definition section. */ | |
3091 | if (i == 0) | |
3092 | break; | |
3093 | linebuf[i] = '\0'; | |
3094 | i = 0; | |
3095 | tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs); | |
3096 | } | |
3097 | else | |
3098 | linebuf[i++] = byte; | |
3099 | if (i >= 1000) | |
3100 | error (_("Excessively long lines in trace file")); | |
3101 | } | |
3102 | ||
3103 | /* Add the file's tracepoints and variables into the current mix. */ | |
3104 | ||
10ef8d6a PA |
3105 | /* Get trace state variables first, they may be checked when parsing |
3106 | uploaded commands. */ | |
00bf0b85 SS |
3107 | merge_uploaded_trace_state_variables (&uploaded_tsvs); |
3108 | ||
10ef8d6a PA |
3109 | merge_uploaded_tracepoints (&uploaded_tps); |
3110 | ||
00bf0b85 SS |
3111 | /* Record the starting offset of the binary trace data. */ |
3112 | trace_frames_offset = bytes; | |
3113 | ||
3114 | /* If we don't have a blocksize, we can't interpret the | |
3115 | traceframes. */ | |
3116 | if (trace_regblock_size == 0) | |
3117 | error (_("No register block size recorded in trace file")); | |
3118 | if (ts->traceframe_count <= 0) | |
3119 | { | |
3120 | warning ("No traceframes present in this file."); | |
3121 | return; | |
3122 | } | |
3123 | ||
3124 | #define TFILE_PID (1) | |
3125 | inferior_appeared (current_inferior (), TFILE_PID); | |
3126 | inferior_ptid = pid_to_ptid (TFILE_PID); | |
3127 | add_thread_silent (inferior_ptid); | |
3128 | ||
3129 | post_create_inferior (&tfile_ops, from_tty); | |
3130 | ||
3131 | #if 0 | |
3132 | /* FIXME this will get defined in MI patch submission */ | |
3133 | tfind_1 (tfind_number, 0, 0, 0, 0); | |
3134 | #endif | |
3135 | } | |
3136 | ||
3137 | /* Interpret the given line from the definitions part of the trace | |
3138 | file. */ | |
3139 | ||
3140 | static void | |
3141 | tfile_interp_line (char *line, | |
3142 | struct uploaded_tp **utpp, struct uploaded_tsv **utsvp) | |
3143 | { | |
3144 | char *p = line; | |
3145 | ||
3146 | if (strncmp (p, "R ", strlen ("R ")) == 0) | |
3147 | { | |
3148 | p += strlen ("R "); | |
3149 | trace_regblock_size = strtol (p, &p, 16); | |
3150 | } | |
3151 | else if (strncmp (p, "status ", strlen ("status ")) == 0) | |
3152 | { | |
3153 | p += strlen ("status "); | |
3154 | parse_trace_status (p, current_trace_status ()); | |
3155 | } | |
3156 | else if (strncmp (p, "tp ", strlen ("tp ")) == 0) | |
3157 | { | |
3158 | p += strlen ("tp "); | |
3159 | parse_tracepoint_definition (p, utpp); | |
3160 | } | |
3161 | else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0) | |
3162 | { | |
3163 | p += strlen ("tsv "); | |
3164 | parse_tsv_definition (p, utsvp); | |
3165 | } | |
3166 | else | |
3167 | warning ("Ignoring trace file definition \"%s\"", line); | |
3168 | } | |
3169 | ||
3170 | /* Parse the part of trace status syntax that is shared between | |
3171 | the remote protocol and the trace file reader. */ | |
3172 | ||
3173 | extern char *unpack_varlen_hex (char *buff, ULONGEST *result); | |
3174 | ||
3175 | void | |
3176 | parse_trace_status (char *line, struct trace_status *ts) | |
3177 | { | |
6c28cbf2 | 3178 | char *p = line, *p1, *p2, *p_temp; |
00bf0b85 SS |
3179 | ULONGEST val; |
3180 | ||
3181 | ts->running_known = 1; | |
3182 | ts->running = (*p++ == '1'); | |
3183 | ts->stop_reason = trace_stop_reason_unknown; | |
a609a0c8 PA |
3184 | xfree (ts->error_desc); |
3185 | ts->error_desc = NULL; | |
4daf5ac0 SS |
3186 | ts->traceframe_count = -1; |
3187 | ts->traceframes_created = -1; | |
3188 | ts->buffer_free = -1; | |
3189 | ts->buffer_size = -1; | |
3190 | ||
00bf0b85 SS |
3191 | while (*p++) |
3192 | { | |
3193 | p1 = strchr (p, ':'); | |
3194 | if (p1 == NULL) | |
3195 | error (_("Malformed trace status, at %s\n\ | |
3196 | Status line: '%s'\n"), p, line); | |
3197 | if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0) | |
3198 | { | |
3199 | p = unpack_varlen_hex (++p1, &val); | |
3200 | ts->stop_reason = trace_buffer_full; | |
3201 | } | |
3202 | else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0) | |
3203 | { | |
3204 | p = unpack_varlen_hex (++p1, &val); | |
3205 | ts->stop_reason = trace_never_run; | |
3206 | } | |
3207 | else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0) | |
3208 | { | |
3209 | p = unpack_varlen_hex (++p1, &val); | |
3210 | ts->stop_reason = tracepoint_passcount; | |
3211 | ts->stopping_tracepoint = val; | |
3212 | } | |
3213 | else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0) | |
3214 | { | |
3215 | p = unpack_varlen_hex (++p1, &val); | |
3216 | ts->stop_reason = tstop_command; | |
3217 | } | |
6c28cbf2 SS |
3218 | else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0) |
3219 | { | |
3220 | p2 = strchr (++p1, ':'); | |
3221 | if (p2 != p1) | |
3222 | { | |
3223 | int end; | |
99b5e152 PA |
3224 | |
3225 | ts->error_desc = xmalloc ((p2 - p1) / 2 + 1); | |
3226 | end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2); | |
6c28cbf2 SS |
3227 | ts->error_desc[end] = '\0'; |
3228 | } | |
a609a0c8 PA |
3229 | else |
3230 | ts->error_desc = xstrdup (""); | |
3231 | ||
6c28cbf2 SS |
3232 | p = unpack_varlen_hex (++p2, &val); |
3233 | ts->stopping_tracepoint = val; | |
3234 | ts->stop_reason = tracepoint_error; | |
3235 | } | |
4daf5ac0 | 3236 | else if (strncmp (p, "tframes", p1 - p) == 0) |
00bf0b85 SS |
3237 | { |
3238 | p = unpack_varlen_hex (++p1, &val); | |
3239 | ts->traceframe_count = val; | |
3240 | } | |
4daf5ac0 SS |
3241 | else if (strncmp (p, "tcreated", p1 - p) == 0) |
3242 | { | |
3243 | p = unpack_varlen_hex (++p1, &val); | |
3244 | ts->traceframes_created = val; | |
3245 | } | |
3246 | else if (strncmp (p, "tfree", p1 - p) == 0) | |
00bf0b85 SS |
3247 | { |
3248 | p = unpack_varlen_hex (++p1, &val); | |
3249 | ts->buffer_free = val; | |
3250 | } | |
4daf5ac0 SS |
3251 | else if (strncmp (p, "tsize", p1 - p) == 0) |
3252 | { | |
3253 | p = unpack_varlen_hex (++p1, &val); | |
3254 | ts->buffer_size = val; | |
3255 | } | |
00bf0b85 SS |
3256 | else |
3257 | { | |
3258 | /* Silently skip unknown optional info. */ | |
3259 | p_temp = strchr (p1 + 1, ';'); | |
3260 | if (p_temp) | |
3261 | p = p_temp; | |
3262 | else | |
3263 | /* Must be at the end. */ | |
3264 | break; | |
3265 | } | |
3266 | } | |
3267 | } | |
3268 | ||
3269 | /* Given a line of text defining a tracepoint or tracepoint action, parse | |
3270 | it into an "uploaded tracepoint". */ | |
3271 | ||
3272 | void | |
3273 | parse_tracepoint_definition (char *line, struct uploaded_tp **utpp) | |
3274 | { | |
3275 | char *p; | |
3276 | char piece; | |
3277 | ULONGEST num, addr, step, pass, orig_size, xlen; | |
3278 | int enabled, i; | |
3279 | enum bptype type; | |
3280 | char *cond; | |
3281 | struct uploaded_tp *utp = NULL; | |
3282 | ||
3283 | p = line; | |
3284 | /* Both tracepoint and action definitions start with the same number | |
3285 | and address sequence. */ | |
3286 | piece = *p++; | |
3287 | p = unpack_varlen_hex (p, &num); | |
3288 | p++; /* skip a colon */ | |
3289 | p = unpack_varlen_hex (p, &addr); | |
3290 | p++; /* skip a colon */ | |
3291 | if (piece == 'T') | |
3292 | { | |
3293 | enabled = (*p++ == 'E'); | |
3294 | p++; /* skip a colon */ | |
3295 | p = unpack_varlen_hex (p, &step); | |
3296 | p++; /* skip a colon */ | |
3297 | p = unpack_varlen_hex (p, &pass); | |
3298 | type = bp_tracepoint; | |
3299 | cond = NULL; | |
3300 | /* Thumb through optional fields. */ | |
3301 | while (*p == ':') | |
3302 | { | |
3303 | p++; /* skip a colon */ | |
3304 | if (*p == 'F') | |
3305 | { | |
3306 | type = bp_fast_tracepoint; | |
3307 | p++; | |
3308 | p = unpack_varlen_hex (p, &orig_size); | |
3309 | } | |
3310 | else if (*p == 'X') | |
3311 | { | |
3312 | p++; | |
3313 | p = unpack_varlen_hex (p, &xlen); | |
3314 | p++; /* skip a comma */ | |
3315 | cond = (char *) xmalloc (2 * xlen + 1); | |
3316 | strncpy (cond, p, 2 * xlen); | |
3317 | cond[2 * xlen] = '\0'; | |
3318 | p += 2 * xlen; | |
3319 | } | |
3320 | else | |
3321 | warning ("Unrecognized char '%c' in tracepoint definition, skipping rest", *p); | |
3322 | } | |
3323 | utp = get_uploaded_tp (num, addr, utpp); | |
3324 | utp->type = type; | |
3325 | utp->enabled = enabled; | |
3326 | utp->step = step; | |
3327 | utp->pass = pass; | |
3328 | utp->cond = cond; | |
3329 | } | |
3330 | else if (piece == 'A') | |
3331 | { | |
3332 | utp = get_uploaded_tp (num, addr, utpp); | |
3333 | utp->actions[utp->numactions++] = xstrdup (p); | |
3334 | } | |
3335 | else if (piece == 'S') | |
3336 | { | |
3337 | utp = get_uploaded_tp (num, addr, utpp); | |
3338 | utp->step_actions[utp->num_step_actions++] = xstrdup (p); | |
3339 | } | |
3340 | else | |
3341 | { | |
3342 | error ("Invalid tracepoint piece"); | |
3343 | } | |
3344 | } | |
3345 | ||
3346 | /* Convert a textual description of a trace state variable into an | |
3347 | uploaded object. */ | |
3348 | ||
3349 | void | |
3350 | parse_tsv_definition (char *line, struct uploaded_tsv **utsvp) | |
3351 | { | |
3352 | char *p, *buf; | |
3353 | ULONGEST num, initval, builtin; | |
3354 | int end; | |
3355 | struct uploaded_tsv *utsv = NULL; | |
3356 | ||
3357 | buf = alloca (strlen (line)); | |
3358 | ||
3359 | p = line; | |
3360 | p = unpack_varlen_hex (p, &num); | |
3361 | p++; /* skip a colon */ | |
3362 | p = unpack_varlen_hex (p, &initval); | |
3363 | p++; /* skip a colon */ | |
3364 | p = unpack_varlen_hex (p, &builtin); | |
3365 | p++; /* skip a colon */ | |
3366 | end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2); | |
3367 | buf[end] = '\0'; | |
3368 | ||
3369 | utsv = get_uploaded_tsv (num, utsvp); | |
3370 | utsv->initial_value = initval; | |
3371 | utsv->builtin = builtin; | |
3372 | utsv->name = xstrdup (buf); | |
3373 | } | |
3374 | ||
3375 | /* Close the trace file and generally clean up. */ | |
3376 | ||
3377 | static void | |
3378 | tfile_close (int quitting) | |
3379 | { | |
3380 | int pid; | |
3381 | ||
3382 | if (trace_fd < 0) | |
3383 | return; | |
3384 | ||
3385 | pid = ptid_get_pid (inferior_ptid); | |
3386 | inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */ | |
3387 | exit_inferior_silent (pid); | |
3388 | ||
3389 | close (trace_fd); | |
3390 | trace_fd = -1; | |
98e03262 SS |
3391 | if (trace_filename) |
3392 | xfree (trace_filename); | |
00bf0b85 SS |
3393 | } |
3394 | ||
3395 | static void | |
3396 | tfile_files_info (struct target_ops *t) | |
3397 | { | |
3398 | /* (it would be useful to mention the name of the file) */ | |
3399 | printf_filtered ("Looking at a trace file.\n"); | |
3400 | } | |
3401 | ||
3402 | /* The trace status for a file is that tracing can never be run. */ | |
3403 | ||
3404 | static int | |
3405 | tfile_get_trace_status (struct trace_status *ts) | |
3406 | { | |
3407 | /* Other bits of trace status were collected as part of opening the | |
3408 | trace files, so nothing to do here. */ | |
3409 | ||
3410 | return -1; | |
3411 | } | |
3412 | ||
3413 | /* Given the position of a traceframe in the file, figure out what | |
3414 | address the frame was collected at. This would normally be the | |
3415 | value of a collected PC register, but if not available, we | |
3416 | improvise. */ | |
3417 | ||
3418 | static ULONGEST | |
3419 | tfile_get_traceframe_address (off_t tframe_offset) | |
3420 | { | |
3421 | ULONGEST addr = 0; | |
3422 | short tpnum; | |
3423 | struct breakpoint *tp; | |
3424 | off_t saved_offset = cur_offset; | |
98e03262 | 3425 | int gotten; |
00bf0b85 SS |
3426 | |
3427 | /* FIXME dig pc out of collected registers */ | |
3428 | ||
3429 | /* Fall back to using tracepoint address. */ | |
3430 | lseek (trace_fd, tframe_offset, SEEK_SET); | |
98e03262 SS |
3431 | gotten = read (trace_fd, &tpnum, 2); |
3432 | if (gotten < 0) | |
3433 | perror_with_name (trace_filename); | |
3434 | else if (gotten < 2) | |
3435 | error (_("Premature end of file while reading trace file")); | |
3436 | ||
00bf0b85 | 3437 | tp = get_tracepoint_by_number_on_target (tpnum); |
9355b391 | 3438 | /* FIXME this is a poor heuristic if multiple locations */ |
00bf0b85 SS |
3439 | if (tp && tp->loc) |
3440 | addr = tp->loc->address; | |
3441 | ||
3442 | /* Restore our seek position. */ | |
3443 | cur_offset = saved_offset; | |
3444 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3445 | return addr; | |
3446 | } | |
3447 | ||
3448 | /* Given a type of search and some parameters, scan the collection of | |
3449 | traceframes in the file looking for a match. When found, return | |
3450 | both the traceframe and tracepoint number, otherwise -1 for | |
3451 | each. */ | |
3452 | ||
3453 | static int | |
3454 | tfile_trace_find (enum trace_find_type type, int num, | |
3455 | ULONGEST addr1, ULONGEST addr2, int *tpp) | |
3456 | { | |
3457 | short tpnum; | |
98e03262 | 3458 | int tfnum = 0, found = 0, gotten; |
00bf0b85 SS |
3459 | int data_size; |
3460 | struct breakpoint *tp; | |
3461 | off_t offset, tframe_offset; | |
3462 | ULONGEST tfaddr; | |
3463 | ||
3464 | lseek (trace_fd, trace_frames_offset, SEEK_SET); | |
3465 | offset = trace_frames_offset; | |
3466 | while (1) | |
3467 | { | |
3468 | tframe_offset = offset; | |
98e03262 SS |
3469 | gotten = read (trace_fd, &tpnum, 2); |
3470 | if (gotten < 0) | |
3471 | perror_with_name (trace_filename); | |
3472 | else if (gotten < 2) | |
3473 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3474 | offset += 2; |
3475 | if (tpnum == 0) | |
3476 | break; | |
98e03262 SS |
3477 | gotten = read (trace_fd, &data_size, 4); |
3478 | if (gotten < 0) | |
3479 | perror_with_name (trace_filename); | |
3480 | else if (gotten < 4) | |
3481 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3482 | offset += 4; |
3483 | switch (type) | |
3484 | { | |
3485 | case tfind_number: | |
3486 | if (tfnum == num) | |
3487 | found = 1; | |
3488 | break; | |
3489 | case tfind_pc: | |
3490 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3491 | if (tfaddr == addr1) | |
3492 | found = 1; | |
3493 | break; | |
3494 | case tfind_tp: | |
3495 | tp = get_tracepoint (num); | |
3496 | if (tp && tpnum == tp->number_on_target) | |
3497 | found = 1; | |
3498 | break; | |
3499 | case tfind_range: | |
3500 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3501 | if (addr1 <= tfaddr && tfaddr <= addr2) | |
3502 | found = 1; | |
3503 | break; | |
3504 | case tfind_outside: | |
3505 | tfaddr = tfile_get_traceframe_address (tframe_offset); | |
3506 | if (!(addr1 <= tfaddr && tfaddr <= addr2)) | |
3507 | found = 1; | |
3508 | break; | |
3509 | default: | |
3510 | internal_error (__FILE__, __LINE__, _("unknown tfind type")); | |
3511 | } | |
3512 | if (found) | |
3513 | { | |
00bf0b85 SS |
3514 | if (tpp) |
3515 | *tpp = tpnum; | |
3516 | cur_offset = offset; | |
3517 | cur_data_size = data_size; | |
3518 | return tfnum; | |
3519 | } | |
3520 | /* Skip past the traceframe's data. */ | |
3521 | lseek (trace_fd, data_size, SEEK_CUR); | |
3522 | offset += data_size; | |
3523 | /* Update our own count of traceframes. */ | |
3524 | ++tfnum; | |
3525 | } | |
3526 | /* Did not find what we were looking for. */ | |
3527 | if (tpp) | |
3528 | *tpp = -1; | |
3529 | return -1; | |
3530 | } | |
3531 | ||
3532 | /* Look for a block of saved registers in the traceframe, and get the | |
3533 | requested register from it. */ | |
3534 | ||
3535 | static void | |
3536 | tfile_fetch_registers (struct target_ops *ops, | |
3537 | struct regcache *regcache, int regno) | |
3538 | { | |
3539 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
3540 | char block_type; | |
98e03262 | 3541 | int i, pos, offset, regn, regsize, gotten; |
00bf0b85 SS |
3542 | unsigned short mlen; |
3543 | char *regs; | |
3544 | ||
3545 | /* An uninitialized reg size says we're not going to be | |
3546 | successful at getting register blocks. */ | |
3547 | if (!trace_regblock_size) | |
3548 | return; | |
3549 | ||
3550 | regs = alloca (trace_regblock_size); | |
3551 | ||
3552 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3553 | pos = 0; | |
3554 | while (pos < cur_data_size) | |
3555 | { | |
98e03262 SS |
3556 | gotten = read (trace_fd, &block_type, 1); |
3557 | if (gotten < 0) | |
3558 | perror_with_name (trace_filename); | |
3559 | else if (gotten < 1) | |
3560 | error (_("Premature end of file while reading trace file")); | |
3561 | ||
00bf0b85 SS |
3562 | ++pos; |
3563 | switch (block_type) | |
3564 | { | |
3565 | case 'R': | |
98e03262 SS |
3566 | gotten = read (trace_fd, regs, trace_regblock_size); |
3567 | if (gotten < 0) | |
3568 | perror_with_name (trace_filename); | |
3569 | else if (gotten < trace_regblock_size) | |
3570 | error (_("Premature end of file while reading trace file")); | |
3571 | ||
00bf0b85 SS |
3572 | /* Assume the block is laid out in GDB register number order, |
3573 | each register with the size that it has in GDB. */ | |
3574 | offset = 0; | |
3575 | for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++) | |
3576 | { | |
3577 | regsize = register_size (gdbarch, regn); | |
3578 | /* Make sure we stay within block bounds. */ | |
3579 | if (offset + regsize >= trace_regblock_size) | |
3580 | break; | |
3581 | if (!regcache_valid_p (regcache, regn)) | |
3582 | { | |
3583 | if (regno == regn) | |
3584 | { | |
3585 | regcache_raw_supply (regcache, regno, regs + offset); | |
3586 | break; | |
3587 | } | |
3588 | else if (regno == -1) | |
3589 | { | |
3590 | regcache_raw_supply (regcache, regn, regs + offset); | |
3591 | } | |
3592 | } | |
3593 | offset += regsize; | |
3594 | } | |
3595 | return; | |
3596 | case 'M': | |
3597 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3598 | gotten = read (trace_fd, &mlen, 2); |
3599 | if (gotten < 0) | |
3600 | perror_with_name (trace_filename); | |
3601 | else if (gotten < 2) | |
3602 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3603 | lseek (trace_fd, mlen, SEEK_CUR); |
3604 | pos += (8 + 2 + mlen); | |
3605 | break; | |
3606 | case 'V': | |
3607 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3608 | pos += (4 + 8); | |
3609 | break; | |
3610 | default: | |
3611 | error ("Unknown block type '%c' (0x%x) in trace frame", | |
3612 | block_type, block_type); | |
3613 | break; | |
3614 | } | |
3615 | } | |
3616 | } | |
3617 | ||
3618 | static LONGEST | |
3619 | tfile_xfer_partial (struct target_ops *ops, enum target_object object, | |
3620 | const char *annex, gdb_byte *readbuf, | |
3621 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
3622 | { | |
3623 | char block_type; | |
98e03262 | 3624 | int pos, gotten; |
00bf0b85 SS |
3625 | ULONGEST maddr; |
3626 | unsigned short mlen; | |
3627 | ||
3628 | /* We're only doing regular memory for now. */ | |
3629 | if (object != TARGET_OBJECT_MEMORY) | |
3630 | return -1; | |
3631 | ||
3632 | if (readbuf == NULL) | |
3633 | error ("tfile_xfer_partial: trace file is read-only"); | |
3634 | ||
3635 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3636 | pos = 0; | |
3637 | while (pos < cur_data_size) | |
3638 | { | |
98e03262 SS |
3639 | gotten = read (trace_fd, &block_type, 1); |
3640 | if (gotten < 0) | |
3641 | perror_with_name (trace_filename); | |
3642 | else if (gotten < 1) | |
3643 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3644 | ++pos; |
3645 | switch (block_type) | |
3646 | { | |
3647 | case 'R': | |
3648 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3649 | pos += trace_regblock_size; | |
3650 | break; | |
3651 | case 'M': | |
98e03262 SS |
3652 | gotten = read (trace_fd, &maddr, 8); |
3653 | if (gotten < 0) | |
3654 | perror_with_name (trace_filename); | |
3655 | else if (gotten < 8) | |
3656 | error (_("Premature end of file while reading trace file")); | |
3657 | ||
3658 | gotten = read (trace_fd, &mlen, 2); | |
3659 | if (gotten < 0) | |
3660 | perror_with_name (trace_filename); | |
3661 | else if (gotten < 2) | |
3662 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3663 | if (maddr <= offset && (offset + len) <= (maddr + mlen)) |
3664 | { | |
98e03262 SS |
3665 | gotten = read (trace_fd, readbuf, mlen); |
3666 | if (gotten < 0) | |
3667 | perror_with_name (trace_filename); | |
3668 | else if (gotten < mlen) | |
3669 | error (_("Premature end of file qwhile reading trace file")); | |
3670 | ||
00bf0b85 SS |
3671 | return mlen; |
3672 | } | |
3673 | lseek (trace_fd, mlen, SEEK_CUR); | |
3674 | pos += (8 + 2 + mlen); | |
3675 | break; | |
3676 | case 'V': | |
3677 | lseek (trace_fd, 4 + 8, SEEK_CUR); | |
3678 | pos += (4 + 8); | |
3679 | break; | |
3680 | default: | |
3681 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3682 | block_type, block_type); | |
3683 | break; | |
3684 | } | |
3685 | } | |
3686 | /* Indicate failure to find the requested memory block. */ | |
3687 | return -1; | |
3688 | } | |
3689 | ||
3690 | /* Iterate through the blocks of a trace frame, looking for a 'V' | |
3691 | block with a matching tsv number. */ | |
3692 | ||
3693 | static int | |
3694 | tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val) | |
3695 | { | |
3696 | char block_type; | |
98e03262 | 3697 | int pos, vnum, gotten; |
00bf0b85 SS |
3698 | unsigned short mlen; |
3699 | ||
3700 | lseek (trace_fd, cur_offset, SEEK_SET); | |
3701 | pos = 0; | |
3702 | while (pos < cur_data_size) | |
3703 | { | |
98e03262 SS |
3704 | gotten = read (trace_fd, &block_type, 1); |
3705 | if (gotten < 0) | |
3706 | perror_with_name (trace_filename); | |
3707 | else if (gotten < 1) | |
3708 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3709 | ++pos; |
3710 | switch (block_type) | |
3711 | { | |
3712 | case 'R': | |
3713 | lseek (trace_fd, trace_regblock_size, SEEK_CUR); | |
3714 | pos += trace_regblock_size; | |
3715 | break; | |
3716 | case 'M': | |
3717 | lseek (trace_fd, 8, SEEK_CUR); | |
98e03262 SS |
3718 | gotten = read (trace_fd, &mlen, 2); |
3719 | if (gotten < 0) | |
3720 | perror_with_name (trace_filename); | |
3721 | else if (gotten < 2) | |
3722 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3723 | lseek (trace_fd, mlen, SEEK_CUR); |
3724 | pos += (8 + 2 + mlen); | |
3725 | break; | |
3726 | case 'V': | |
98e03262 SS |
3727 | gotten = read (trace_fd, &vnum, 4); |
3728 | if (gotten < 0) | |
3729 | perror_with_name (trace_filename); | |
3730 | else if (gotten < 4) | |
3731 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3732 | if (tsvnum == vnum) |
3733 | { | |
98e03262 SS |
3734 | gotten = read (trace_fd, val, 8); |
3735 | if (gotten < 0) | |
3736 | perror_with_name (trace_filename); | |
3737 | else if (gotten < 8) | |
3738 | error (_("Premature end of file while reading trace file")); | |
00bf0b85 SS |
3739 | return 1; |
3740 | } | |
3741 | lseek (trace_fd, 8, SEEK_CUR); | |
3742 | pos += (4 + 8); | |
3743 | break; | |
3744 | default: | |
3745 | error ("Unknown block type '%c' (0x%x) in traceframe", | |
3746 | block_type, block_type); | |
3747 | break; | |
3748 | } | |
3749 | } | |
3750 | /* Didn't find anything. */ | |
3751 | return 0; | |
3752 | } | |
3753 | ||
3754 | static int | |
3755 | tfile_has_memory (struct target_ops *ops) | |
3756 | { | |
3757 | return 1; | |
3758 | } | |
3759 | ||
3760 | static int | |
3761 | tfile_has_stack (struct target_ops *ops) | |
3762 | { | |
3763 | return 1; | |
3764 | } | |
3765 | ||
3766 | static int | |
3767 | tfile_has_registers (struct target_ops *ops) | |
3768 | { | |
3769 | return 1; | |
3770 | } | |
3771 | ||
3772 | static void | |
3773 | init_tfile_ops (void) | |
3774 | { | |
3775 | tfile_ops.to_shortname = "tfile"; | |
3776 | tfile_ops.to_longname = "Local trace dump file"; | |
3777 | tfile_ops.to_doc = | |
3778 | "Use a trace file as a target. Specify the filename of the trace file."; | |
3779 | tfile_ops.to_open = tfile_open; | |
3780 | tfile_ops.to_close = tfile_close; | |
3781 | tfile_ops.to_fetch_registers = tfile_fetch_registers; | |
3782 | tfile_ops.to_xfer_partial = tfile_xfer_partial; | |
3783 | tfile_ops.to_files_info = tfile_files_info; | |
3784 | tfile_ops.to_get_trace_status = tfile_get_trace_status; | |
3785 | tfile_ops.to_trace_find = tfile_trace_find; | |
3786 | tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value; | |
3787 | /* core_stratum might seem more logical, but GDB doesn't like having | |
3788 | more than one core_stratum vector. */ | |
3789 | tfile_ops.to_stratum = process_stratum; | |
3790 | tfile_ops.to_has_memory = tfile_has_memory; | |
3791 | tfile_ops.to_has_stack = tfile_has_stack; | |
3792 | tfile_ops.to_has_registers = tfile_has_registers; | |
3793 | tfile_ops.to_magic = OPS_MAGIC; | |
3794 | } | |
3795 | ||
c906108c SS |
3796 | /* module initialization */ |
3797 | void | |
fba45db2 | 3798 | _initialize_tracepoint (void) |
c906108c | 3799 | { |
fa58ee11 EZ |
3800 | struct cmd_list_element *c; |
3801 | ||
c906108c SS |
3802 | traceframe_number = -1; |
3803 | tracepoint_number = -1; | |
3804 | ||
c906108c SS |
3805 | if (tracepoint_list.list == NULL) |
3806 | { | |
3807 | tracepoint_list.listsize = 128; | |
c5aa993b | 3808 | tracepoint_list.list = xmalloc |
c906108c SS |
3809 | (tracepoint_list.listsize * sizeof (struct memrange)); |
3810 | } | |
3811 | if (tracepoint_list.aexpr_list == NULL) | |
3812 | { | |
3813 | tracepoint_list.aexpr_listsize = 128; | |
3814 | tracepoint_list.aexpr_list = xmalloc | |
3815 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3816 | } | |
3817 | ||
3818 | if (stepping_list.list == NULL) | |
3819 | { | |
3820 | stepping_list.listsize = 128; | |
c5aa993b | 3821 | stepping_list.list = xmalloc |
c906108c SS |
3822 | (stepping_list.listsize * sizeof (struct memrange)); |
3823 | } | |
3824 | ||
3825 | if (stepping_list.aexpr_list == NULL) | |
3826 | { | |
3827 | stepping_list.aexpr_listsize = 128; | |
3828 | stepping_list.aexpr_list = xmalloc | |
3829 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
3830 | } | |
3831 | ||
c5aa993b | 3832 | add_info ("scope", scope_info, |
1bedd215 | 3833 | _("List the variables local to a scope")); |
c906108c | 3834 | |
e00d1dc8 | 3835 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 3836 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
3837 | &cmdlist); |
3838 | ||
c5aa993b | 3839 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 3840 | _("Print everything collected at the current tracepoint.")); |
c906108c | 3841 | |
00bf0b85 SS |
3842 | add_com ("tsave", class_trace, trace_save_command, _("\ |
3843 | Save the trace data to a file.\n\ | |
3844 | Use the '-r' option to direct the target to save directly to the file,\n\ | |
3845 | using its own filesystem.")); | |
3846 | ||
f61e138d SS |
3847 | c = add_com ("tvariable", class_trace, trace_variable_command,_("\ |
3848 | Define a trace state variable.\n\ | |
3849 | Argument is a $-prefixed name, optionally followed\n\ | |
3850 | by '=' and an expression that sets the initial value\n\ | |
3851 | at the start of tracing.")); | |
3852 | set_cmd_completer (c, expression_completer); | |
3853 | ||
3854 | add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\ | |
3855 | Delete one or more trace state variables.\n\ | |
3856 | Arguments are the names of the variables to delete.\n\ | |
3857 | If no arguments are supplied, delete all variables."), &deletelist); | |
3858 | /* FIXME add a trace variable completer */ | |
3859 | ||
3860 | add_info ("tvariables", tvariables_info, _("\ | |
3861 | Status of trace state variables and their values.\n\ | |
3862 | ")); | |
3863 | ||
1bedd215 AC |
3864 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
3865 | Select a trace frame;\n\ | |
3866 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
3867 | &tfindlist, "tfind ", 1, &cmdlist); |
3868 | ||
1a966eab | 3869 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
081dfbf7 | 3870 | Select a trace frame whose PC is outside the given range (exclusive).\n\ |
1a966eab | 3871 | Usage: tfind outside addr1, addr2"), |
c906108c SS |
3872 | &tfindlist); |
3873 | ||
1a966eab | 3874 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
081dfbf7 | 3875 | Select a trace frame whose PC is in the given range (inclusive).\n\ |
1a966eab | 3876 | Usage: tfind range addr1,addr2"), |
c906108c SS |
3877 | &tfindlist); |
3878 | ||
1a966eab AC |
3879 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
3880 | Select a trace frame by source line.\n\ | |
c906108c SS |
3881 | Argument can be a line number (with optional source file), \n\ |
3882 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 3883 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
3884 | &tfindlist); |
3885 | ||
1a966eab AC |
3886 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
3887 | Select a trace frame by tracepoint number.\n\ | |
3888 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
3889 | &tfindlist); |
3890 | ||
1a966eab AC |
3891 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
3892 | Select a trace frame by PC.\n\ | |
3893 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
3894 | &tfindlist); |
3895 | ||
1a966eab AC |
3896 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
3897 | Synonym for 'none'.\n\ | |
3898 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
3899 | &tfindlist); |
3900 | ||
3901 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 3902 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
3903 | &tfindlist); |
3904 | ||
3905 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 3906 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
3907 | &tfindlist); |
3908 | ||
c5aa993b | 3909 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 3910 | _("Display the status of the current trace data collection.")); |
c906108c | 3911 | |
c5aa993b | 3912 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 3913 | _("Stop trace data collection.")); |
c906108c SS |
3914 | |
3915 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 3916 | _("Start trace data collection.")); |
c906108c | 3917 | |
1bedd215 AC |
3918 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
3919 | Ends a list of commands or actions.\n\ | |
c906108c SS |
3920 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
3921 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
3922 | such a list.\n\n\ | |
1bedd215 | 3923 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 3924 | |
1bedd215 AC |
3925 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
3926 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
3927 | Argument is number of instructions to trace in single-step mode\n\ |
3928 | following the tracepoint. This command is normally followed by\n\ | |
3929 | one or more \"collect\" commands, to specify what to collect\n\ | |
3930 | while single-stepping.\n\n\ | |
1bedd215 | 3931 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3932 | |
c5aa993b JM |
3933 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
3934 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 3935 | |
1bedd215 AC |
3936 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
3937 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
3938 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
3939 | collect all data (variables, registers) referenced by that expression.\n\ | |
3940 | Also accepts the following special arguments:\n\ | |
3941 | $regs -- all registers.\n\ | |
3942 | $args -- all function arguments.\n\ | |
3943 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 3944 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 3945 | |
6da95a67 SS |
3946 | add_com ("teval", class_trace, teval_pseudocommand, _("\ |
3947 | Specify one or more expressions to be evaluated at a tracepoint.\n\ | |
3948 | Accepts a comma-separated list of (one or more) expressions.\n\ | |
3949 | The result of each evaluation will be discarded.\n\ | |
3950 | Note: this command can only be used in a tracepoint \"actions\" list.")); | |
3951 | ||
1bedd215 AC |
3952 | add_com ("actions", class_trace, trace_actions_command, _("\ |
3953 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
3954 | Tracepoint actions may include collecting of specified data, \n\ |
3955 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 3956 | depending on target's capabilities.")); |
c906108c | 3957 | |
236f1d4d SS |
3958 | default_collect = xstrdup (""); |
3959 | add_setshow_string_cmd ("default-collect", class_trace, | |
3960 | &default_collect, _("\ | |
3961 | Set the list of expressions to collect by default"), _("\ | |
3962 | Show the list of expressions to collect by default"), NULL, | |
3963 | NULL, NULL, | |
3964 | &setlist, &showlist); | |
3965 | ||
d5551862 SS |
3966 | add_setshow_boolean_cmd ("disconnected-tracing", no_class, |
3967 | &disconnected_tracing, _("\ | |
3968 | Set whether tracing continues after GDB disconnects."), _("\ | |
3969 | Show whether tracing continues after GDB disconnects."), _("\ | |
3970 | Use this to continue a tracing run even if GDB disconnects\n\ | |
3971 | or detaches from the target. You can reconnect later and look at\n\ | |
3972 | trace data collected in the meantime."), | |
3973 | set_disconnected_tracing, | |
3974 | NULL, | |
3975 | &setlist, | |
3976 | &showlist); | |
00bf0b85 | 3977 | |
4daf5ac0 SS |
3978 | add_setshow_boolean_cmd ("circular-trace-buffer", no_class, |
3979 | &circular_trace_buffer, _("\ | |
3980 | Set target's use of circular trace buffer."), _("\ | |
3981 | Show target's use of circular trace buffer."), _("\ | |
3982 | Use this to make the trace buffer into a circular buffer,\n\ | |
3983 | which will discard traceframes (oldest first) instead of filling\n\ | |
3984 | up and stopping the trace run."), | |
3985 | set_circular_trace_buffer, | |
3986 | NULL, | |
3987 | &setlist, | |
3988 | &showlist); | |
3989 | ||
00bf0b85 SS |
3990 | init_tfile_ops (); |
3991 | ||
3992 | add_target (&tfile_ops); | |
c906108c | 3993 | } |