Commit | Line | Data |
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69d05d38 HZ |
1 | /* Process record and replay target for GDB, the GNU debugger. |
2 | ||
618f726f | 3 | Copyright (C) 2008-2016 Free Software Foundation, Inc. |
69d05d38 HZ |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
0156b218 | 22 | #include "completer.h" |
69d05d38 | 23 | #include "record.h" |
82a90ccf | 24 | #include "observer.h" |
d02ed0bb MM |
25 | #include "inferior.h" |
26 | #include "common/common-utils.h" | |
67c86d06 MM |
27 | #include "cli/cli-utils.h" |
28 | #include "disasm.h" | |
29 | ||
30 | #include <ctype.h> | |
69d05d38 | 31 | |
d02ed0bb MM |
32 | /* This is the debug switch for process record. */ |
33 | unsigned int record_debug = 0; | |
27699eea | 34 | |
67c86d06 MM |
35 | /* The number of instructions to print in "record instruction-history". */ |
36 | static unsigned int record_insn_history_size = 10; | |
37 | ||
42c634cb PA |
38 | /* The variable registered as control variable in the "record |
39 | instruction-history" command. Necessary for extra input | |
40 | validation. */ | |
41 | static unsigned int record_insn_history_size_setshow_var; | |
42 | ||
15984c13 MM |
43 | /* The number of functions to print in "record function-call-history". */ |
44 | static unsigned int record_call_history_size = 10; | |
45 | ||
42c634cb PA |
46 | /* The variable registered as control variable in the "record |
47 | call-history" command. Necessary for extra input validation. */ | |
48 | static unsigned int record_call_history_size_setshow_var; | |
49 | ||
d02ed0bb | 50 | struct cmd_list_element *record_cmdlist = NULL; |
742ce053 | 51 | struct cmd_list_element *record_goto_cmdlist = NULL; |
d02ed0bb MM |
52 | struct cmd_list_element *set_record_cmdlist = NULL; |
53 | struct cmd_list_element *show_record_cmdlist = NULL; | |
54 | struct cmd_list_element *info_record_cmdlist = NULL; | |
27699eea | 55 | |
7c1687a9 MM |
56 | #define DEBUG(msg, args...) \ |
57 | if (record_debug) \ | |
58 | fprintf_unfiltered (gdb_stdlog, "record: " msg "\n", ##args) | |
59 | ||
8213266a | 60 | /* See record.h. */ |
27699eea | 61 | |
8213266a | 62 | struct target_ops * |
d02ed0bb | 63 | find_record_target (void) |
27699eea | 64 | { |
8b06beed | 65 | return find_target_at (record_stratum); |
27699eea MS |
66 | } |
67 | ||
d02ed0bb | 68 | /* Check that recording is active. Throw an error, if it isn't. */ |
27699eea | 69 | |
d02ed0bb MM |
70 | static struct target_ops * |
71 | require_record_target (void) | |
27699eea | 72 | { |
d02ed0bb | 73 | struct target_ops *t; |
27699eea | 74 | |
d02ed0bb MM |
75 | t = find_record_target (); |
76 | if (t == NULL) | |
77 | error (_("No record target is currently active.\n" | |
78 | "Use one of the \"target record-<tab><tab>\" commands first.")); | |
27699eea | 79 | |
d02ed0bb | 80 | return t; |
27699eea MS |
81 | } |
82 | ||
d02ed0bb | 83 | /* See record.h. */ |
27699eea | 84 | |
8213266a PA |
85 | void |
86 | record_preopen (void) | |
87 | { | |
88 | /* Check if a record target is already running. */ | |
89 | if (find_record_target () != NULL) | |
90 | error (_("The process is already being recorded. Use \"record stop\" to " | |
91 | "stop recording first.")); | |
92 | } | |
93 | ||
94 | /* See record.h. */ | |
95 | ||
d02ed0bb MM |
96 | int |
97 | record_read_memory (struct gdbarch *gdbarch, | |
98 | CORE_ADDR memaddr, gdb_byte *myaddr, | |
99 | ssize_t len) | |
27699eea | 100 | { |
d02ed0bb | 101 | int ret = target_read_memory (memaddr, myaddr, len); |
27699eea | 102 | |
7c1687a9 MM |
103 | if (ret != 0) |
104 | DEBUG ("error reading memory at addr %s len = %ld.\n", | |
105 | paddress (gdbarch, memaddr), (long) len); | |
106 | ||
d02ed0bb | 107 | return ret; |
27699eea MS |
108 | } |
109 | ||
7c1687a9 MM |
110 | /* Stop recording. */ |
111 | ||
112 | static void | |
113 | record_stop (struct target_ops *t) | |
114 | { | |
115 | DEBUG ("stop %s", t->to_shortname); | |
116 | ||
ee97f592 | 117 | t->to_stop_recording (t); |
7c1687a9 MM |
118 | } |
119 | ||
120 | /* Unpush the record target. */ | |
121 | ||
122 | static void | |
123 | record_unpush (struct target_ops *t) | |
124 | { | |
125 | DEBUG ("unpush %s", t->to_shortname); | |
126 | ||
127 | unpush_target (t); | |
128 | } | |
129 | ||
130 | /* See record.h. */ | |
131 | ||
132 | void | |
fee354ee | 133 | record_disconnect (struct target_ops *t, const char *args, int from_tty) |
7c1687a9 MM |
134 | { |
135 | gdb_assert (t->to_stratum == record_stratum); | |
136 | ||
137 | DEBUG ("disconnect %s", t->to_shortname); | |
138 | ||
139 | record_stop (t); | |
140 | record_unpush (t); | |
141 | ||
142 | target_disconnect (args, from_tty); | |
143 | } | |
144 | ||
145 | /* See record.h. */ | |
146 | ||
147 | void | |
52554a0e | 148 | record_detach (struct target_ops *t, const char *args, int from_tty) |
7c1687a9 MM |
149 | { |
150 | gdb_assert (t->to_stratum == record_stratum); | |
151 | ||
152 | DEBUG ("detach %s", t->to_shortname); | |
153 | ||
154 | record_stop (t); | |
155 | record_unpush (t); | |
156 | ||
157 | target_detach (args, from_tty); | |
158 | } | |
159 | ||
160 | /* See record.h. */ | |
161 | ||
162 | void | |
163 | record_mourn_inferior (struct target_ops *t) | |
164 | { | |
165 | gdb_assert (t->to_stratum == record_stratum); | |
166 | ||
167 | DEBUG ("mourn inferior %s", t->to_shortname); | |
168 | ||
169 | /* It is safer to not stop recording. Resources will be freed when | |
170 | threads are discarded. */ | |
171 | record_unpush (t); | |
172 | ||
173 | target_mourn_inferior (); | |
174 | } | |
175 | ||
176 | /* See record.h. */ | |
177 | ||
178 | void | |
179 | record_kill (struct target_ops *t) | |
180 | { | |
181 | gdb_assert (t->to_stratum == record_stratum); | |
182 | ||
183 | DEBUG ("kill %s", t->to_shortname); | |
184 | ||
185 | /* It is safer to not stop recording. Resources will be freed when | |
186 | threads are discarded. */ | |
187 | record_unpush (t); | |
188 | ||
189 | target_kill (); | |
190 | } | |
191 | ||
9e8915c6 PA |
192 | /* See record.h. */ |
193 | ||
194 | int | |
195 | record_check_stopped_by_breakpoint (struct address_space *aspace, CORE_ADDR pc, | |
196 | enum target_stop_reason *reason) | |
197 | { | |
198 | if (breakpoint_inserted_here_p (aspace, pc)) | |
199 | { | |
200 | if (hardware_breakpoint_inserted_here_p (aspace, pc)) | |
201 | *reason = TARGET_STOPPED_BY_HW_BREAKPOINT; | |
202 | else | |
203 | *reason = TARGET_STOPPED_BY_SW_BREAKPOINT; | |
204 | return 1; | |
205 | } | |
206 | ||
207 | *reason = TARGET_STOPPED_BY_NO_REASON; | |
208 | return 0; | |
209 | } | |
210 | ||
6df67667 MS |
211 | /* Implement "show record debug" command. */ |
212 | ||
69d05d38 HZ |
213 | static void |
214 | show_record_debug (struct ui_file *file, int from_tty, | |
215 | struct cmd_list_element *c, const char *value) | |
216 | { | |
217 | fprintf_filtered (file, _("Debugging of process record target is %s.\n"), | |
218 | value); | |
219 | } | |
220 | ||
221 | /* Alias for "target record". */ | |
222 | ||
223 | static void | |
224 | cmd_record_start (char *args, int from_tty) | |
225 | { | |
d02ed0bb | 226 | execute_command ("target record-full", from_tty); |
69d05d38 HZ |
227 | } |
228 | ||
229 | /* Truncate the record log from the present point | |
230 | of replay until the end. */ | |
231 | ||
232 | static void | |
233 | cmd_record_delete (char *args, int from_tty) | |
234 | { | |
d02ed0bb MM |
235 | require_record_target (); |
236 | ||
a52eab48 | 237 | if (!target_record_is_replaying (inferior_ptid)) |
69d05d38 | 238 | { |
d02ed0bb MM |
239 | printf_unfiltered (_("Already at end of record list.\n")); |
240 | return; | |
241 | } | |
69d05d38 | 242 | |
d02ed0bb MM |
243 | if (!target_supports_delete_record ()) |
244 | { | |
245 | printf_unfiltered (_("The current record target does not support " | |
246 | "this operation.\n")); | |
247 | return; | |
69d05d38 | 248 | } |
d02ed0bb MM |
249 | |
250 | if (!from_tty || query (_("Delete the log from this point forward " | |
251 | "and begin to record the running message " | |
252 | "at current PC?"))) | |
253 | target_delete_record (); | |
69d05d38 HZ |
254 | } |
255 | ||
6df67667 | 256 | /* Implement the "stoprecord" or "record stop" command. */ |
69d05d38 HZ |
257 | |
258 | static void | |
259 | cmd_record_stop (char *args, int from_tty) | |
260 | { | |
d02ed0bb | 261 | struct target_ops *t; |
82a90ccf | 262 | |
d02ed0bb | 263 | t = require_record_target (); |
7c1687a9 MM |
264 | |
265 | record_stop (t); | |
266 | record_unpush (t); | |
69d05d38 | 267 | |
d02ed0bb MM |
268 | printf_unfiltered (_("Process record is stopped and all execution " |
269 | "logs are deleted.\n")); | |
69d05d38 | 270 | |
d02ed0bb | 271 | observer_notify_record_changed (current_inferior (), 0); |
69d05d38 HZ |
272 | } |
273 | ||
d02ed0bb | 274 | /* The "set record" command. */ |
69d05d38 HZ |
275 | |
276 | static void | |
277 | set_record_command (char *args, int from_tty) | |
278 | { | |
3e43a32a MS |
279 | printf_unfiltered (_("\"set record\" must be followed " |
280 | "by an apporpriate subcommand.\n")); | |
69d05d38 HZ |
281 | help_list (set_record_cmdlist, "set record ", all_commands, gdb_stdout); |
282 | } | |
283 | ||
d02ed0bb MM |
284 | /* The "show record" command. */ |
285 | ||
69d05d38 HZ |
286 | static void |
287 | show_record_command (char *args, int from_tty) | |
288 | { | |
289 | cmd_show_list (show_record_cmdlist, from_tty, ""); | |
290 | } | |
291 | ||
d02ed0bb | 292 | /* The "info record" command. */ |
b54295a7 | 293 | |
69d05d38 HZ |
294 | static void |
295 | info_record_command (char *args, int from_tty) | |
296 | { | |
d02ed0bb | 297 | struct target_ops *t; |
0156b218 | 298 | |
d02ed0bb MM |
299 | t = find_record_target (); |
300 | if (t == NULL) | |
0156b218 | 301 | { |
d02ed0bb MM |
302 | printf_filtered (_("No record target is currently active.\n")); |
303 | return; | |
0156b218 MS |
304 | } |
305 | ||
d02ed0bb | 306 | printf_filtered (_("Active record target: %s\n"), t->to_shortname); |
38e229b2 | 307 | t->to_info_record (t); |
0156b218 MS |
308 | } |
309 | ||
d02ed0bb | 310 | /* The "record save" command. */ |
0156b218 MS |
311 | |
312 | static void | |
313 | cmd_record_save (char *args, int from_tty) | |
314 | { | |
315 | char *recfilename, recfilename_buffer[40]; | |
0156b218 | 316 | |
d02ed0bb | 317 | require_record_target (); |
0156b218 | 318 | |
d02ed0bb | 319 | if (args != NULL && *args != 0) |
0156b218 MS |
320 | recfilename = args; |
321 | else | |
322 | { | |
323 | /* Default recfile name is "gdb_record.PID". */ | |
d02ed0bb | 324 | xsnprintf (recfilename_buffer, sizeof (recfilename_buffer), |
dfd4cc63 | 325 | "gdb_record.%d", ptid_get_pid (inferior_ptid)); |
0156b218 MS |
326 | recfilename = recfilename_buffer; |
327 | } | |
328 | ||
d02ed0bb | 329 | target_save_record (recfilename); |
6b04bdb7 MS |
330 | } |
331 | ||
c2bcbb1d | 332 | /* See record.h. */ |
6b04bdb7 | 333 | |
d02ed0bb | 334 | void |
c2bcbb1d | 335 | record_goto (const char *arg) |
6b04bdb7 | 336 | { |
742ce053 | 337 | ULONGEST insn; |
6b04bdb7 MS |
338 | |
339 | if (arg == NULL || *arg == '\0') | |
340 | error (_("Command requires an argument (insn number to go to).")); | |
341 | ||
742ce053 | 342 | insn = parse_and_eval_long (arg); |
6b04bdb7 | 343 | |
742ce053 MM |
344 | require_record_target (); |
345 | target_goto_record (insn); | |
346 | } | |
347 | ||
c2bcbb1d TT |
348 | /* "record goto" command. Argument is an instruction number, |
349 | as given by "info record". | |
350 | ||
351 | Rewinds the recording (forward or backward) to the given instruction. */ | |
352 | ||
353 | static void | |
354 | cmd_record_goto (char *arg, int from_tty) | |
355 | { | |
356 | record_goto (arg); | |
357 | } | |
358 | ||
742ce053 MM |
359 | /* The "record goto begin" command. */ |
360 | ||
361 | static void | |
362 | cmd_record_goto_begin (char *arg, int from_tty) | |
363 | { | |
364 | if (arg != NULL && *arg != '\0') | |
365 | error (_("Junk after argument: %s."), arg); | |
366 | ||
367 | require_record_target (); | |
368 | target_goto_record_begin (); | |
369 | } | |
370 | ||
371 | /* The "record goto end" command. */ | |
372 | ||
373 | static void | |
374 | cmd_record_goto_end (char *arg, int from_tty) | |
375 | { | |
376 | if (arg != NULL && *arg != '\0') | |
377 | error (_("Junk after argument: %s."), arg); | |
378 | ||
379 | require_record_target (); | |
380 | target_goto_record_end (); | |
6b04bdb7 MS |
381 | } |
382 | ||
67c86d06 MM |
383 | /* Read an instruction number from an argument string. */ |
384 | ||
385 | static ULONGEST | |
386 | get_insn_number (char **arg) | |
387 | { | |
388 | ULONGEST number; | |
389 | const char *begin, *end, *pos; | |
390 | ||
391 | begin = *arg; | |
392 | pos = skip_spaces_const (begin); | |
393 | ||
394 | if (!isdigit (*pos)) | |
395 | error (_("Expected positive number, got: %s."), pos); | |
396 | ||
397 | number = strtoulst (pos, &end, 10); | |
398 | ||
399 | *arg += (end - begin); | |
400 | ||
401 | return number; | |
402 | } | |
403 | ||
404 | /* Read a context size from an argument string. */ | |
405 | ||
406 | static int | |
407 | get_context_size (char **arg) | |
408 | { | |
409 | char *pos; | |
410 | int number; | |
411 | ||
412 | pos = skip_spaces (*arg); | |
413 | ||
414 | if (!isdigit (*pos)) | |
415 | error (_("Expected positive number, got: %s."), pos); | |
416 | ||
417 | return strtol (pos, arg, 10); | |
418 | } | |
419 | ||
420 | /* Complain about junk at the end of an argument string. */ | |
421 | ||
422 | static void | |
423 | no_chunk (char *arg) | |
424 | { | |
425 | if (*arg != 0) | |
426 | error (_("Junk after argument: %s."), arg); | |
427 | } | |
428 | ||
429 | /* Read instruction-history modifiers from an argument string. */ | |
430 | ||
431 | static int | |
432 | get_insn_history_modifiers (char **arg) | |
433 | { | |
434 | int modifiers; | |
435 | char *args; | |
436 | ||
437 | modifiers = 0; | |
438 | args = *arg; | |
439 | ||
440 | if (args == NULL) | |
441 | return modifiers; | |
442 | ||
443 | while (*args == '/') | |
444 | { | |
445 | ++args; | |
446 | ||
447 | if (*args == '\0') | |
448 | error (_("Missing modifier.")); | |
449 | ||
450 | for (; *args; ++args) | |
451 | { | |
452 | if (isspace (*args)) | |
453 | break; | |
454 | ||
455 | if (*args == '/') | |
456 | continue; | |
457 | ||
458 | switch (*args) | |
459 | { | |
460 | case 'm': | |
0c532a29 MM |
461 | case 's': |
462 | modifiers |= DISASSEMBLY_SOURCE; | |
67c86d06 MM |
463 | modifiers |= DISASSEMBLY_FILENAME; |
464 | break; | |
465 | case 'r': | |
466 | modifiers |= DISASSEMBLY_RAW_INSN; | |
467 | break; | |
468 | case 'f': | |
469 | modifiers |= DISASSEMBLY_OMIT_FNAME; | |
470 | break; | |
946287b7 MM |
471 | case 'p': |
472 | modifiers |= DISASSEMBLY_OMIT_PC; | |
473 | break; | |
67c86d06 MM |
474 | default: |
475 | error (_("Invalid modifier: %c."), *args); | |
476 | } | |
477 | } | |
478 | ||
479 | args = skip_spaces (args); | |
480 | } | |
481 | ||
482 | /* Update the argument string. */ | |
483 | *arg = args; | |
484 | ||
485 | return modifiers; | |
486 | } | |
487 | ||
42c634cb PA |
488 | /* The "set record instruction-history-size / set record |
489 | function-call-history-size" commands are unsigned, with UINT_MAX | |
490 | meaning unlimited. The target interfaces works with signed int | |
491 | though, to indicate direction, so map "unlimited" to INT_MAX, which | |
492 | is about the same as unlimited in practice. If the user does have | |
0ccfeeae MM |
493 | a log that huge, she can fetch it in chunks across several requests, |
494 | but she'll likely have other problems first... */ | |
42c634cb PA |
495 | |
496 | static int | |
0ccfeeae | 497 | command_size_to_target_size (unsigned int size) |
42c634cb | 498 | { |
0ccfeeae | 499 | gdb_assert (size <= INT_MAX || size == UINT_MAX); |
42c634cb | 500 | |
0ccfeeae | 501 | if (size == UINT_MAX) |
42c634cb PA |
502 | return INT_MAX; |
503 | else | |
0ccfeeae | 504 | return size; |
42c634cb PA |
505 | } |
506 | ||
67c86d06 MM |
507 | /* The "record instruction-history" command. */ |
508 | ||
509 | static void | |
510 | cmd_record_insn_history (char *arg, int from_tty) | |
511 | { | |
512 | int flags, size; | |
513 | ||
514 | require_record_target (); | |
515 | ||
516 | flags = get_insn_history_modifiers (&arg); | |
517 | ||
0ccfeeae | 518 | size = command_size_to_target_size (record_insn_history_size); |
67c86d06 MM |
519 | |
520 | if (arg == NULL || *arg == 0 || strcmp (arg, "+") == 0) | |
521 | target_insn_history (size, flags); | |
522 | else if (strcmp (arg, "-") == 0) | |
523 | target_insn_history (-size, flags); | |
524 | else | |
525 | { | |
526 | ULONGEST begin, end; | |
527 | ||
528 | begin = get_insn_number (&arg); | |
529 | ||
530 | if (*arg == ',') | |
531 | { | |
532 | arg = skip_spaces (++arg); | |
533 | ||
534 | if (*arg == '+') | |
535 | { | |
536 | arg += 1; | |
537 | size = get_context_size (&arg); | |
538 | ||
539 | no_chunk (arg); | |
540 | ||
541 | target_insn_history_from (begin, size, flags); | |
542 | } | |
543 | else if (*arg == '-') | |
544 | { | |
545 | arg += 1; | |
546 | size = get_context_size (&arg); | |
547 | ||
548 | no_chunk (arg); | |
549 | ||
550 | target_insn_history_from (begin, -size, flags); | |
551 | } | |
552 | else | |
553 | { | |
554 | end = get_insn_number (&arg); | |
555 | ||
556 | no_chunk (arg); | |
557 | ||
558 | target_insn_history_range (begin, end, flags); | |
559 | } | |
560 | } | |
561 | else | |
562 | { | |
563 | no_chunk (arg); | |
564 | ||
565 | target_insn_history_from (begin, size, flags); | |
566 | } | |
567 | ||
568 | dont_repeat (); | |
569 | } | |
570 | } | |
571 | ||
15984c13 MM |
572 | /* Read function-call-history modifiers from an argument string. */ |
573 | ||
574 | static int | |
575 | get_call_history_modifiers (char **arg) | |
576 | { | |
577 | int modifiers; | |
578 | char *args; | |
579 | ||
580 | modifiers = 0; | |
581 | args = *arg; | |
582 | ||
583 | if (args == NULL) | |
584 | return modifiers; | |
585 | ||
586 | while (*args == '/') | |
587 | { | |
588 | ++args; | |
589 | ||
590 | if (*args == '\0') | |
591 | error (_("Missing modifier.")); | |
592 | ||
593 | for (; *args; ++args) | |
594 | { | |
595 | if (isspace (*args)) | |
596 | break; | |
597 | ||
598 | if (*args == '/') | |
599 | continue; | |
600 | ||
601 | switch (*args) | |
602 | { | |
603 | case 'l': | |
1e038f67 | 604 | modifiers |= RECORD_PRINT_SRC_LINE; |
15984c13 MM |
605 | break; |
606 | case 'i': | |
1e038f67 | 607 | modifiers |= RECORD_PRINT_INSN_RANGE; |
15984c13 | 608 | break; |
8710b709 MM |
609 | case 'c': |
610 | modifiers |= RECORD_PRINT_INDENT_CALLS; | |
611 | break; | |
15984c13 MM |
612 | default: |
613 | error (_("Invalid modifier: %c."), *args); | |
614 | } | |
615 | } | |
616 | ||
617 | args = skip_spaces (args); | |
618 | } | |
619 | ||
620 | /* Update the argument string. */ | |
621 | *arg = args; | |
622 | ||
623 | return modifiers; | |
624 | } | |
625 | ||
626 | /* The "record function-call-history" command. */ | |
627 | ||
628 | static void | |
629 | cmd_record_call_history (char *arg, int from_tty) | |
630 | { | |
631 | int flags, size; | |
632 | ||
633 | require_record_target (); | |
634 | ||
635 | flags = get_call_history_modifiers (&arg); | |
636 | ||
0ccfeeae | 637 | size = command_size_to_target_size (record_call_history_size); |
15984c13 MM |
638 | |
639 | if (arg == NULL || *arg == 0 || strcmp (arg, "+") == 0) | |
640 | target_call_history (size, flags); | |
641 | else if (strcmp (arg, "-") == 0) | |
642 | target_call_history (-size, flags); | |
643 | else | |
644 | { | |
645 | ULONGEST begin, end; | |
646 | ||
647 | begin = get_insn_number (&arg); | |
648 | ||
649 | if (*arg == ',') | |
650 | { | |
651 | arg = skip_spaces (++arg); | |
652 | ||
653 | if (*arg == '+') | |
654 | { | |
655 | arg += 1; | |
656 | size = get_context_size (&arg); | |
657 | ||
658 | no_chunk (arg); | |
659 | ||
660 | target_call_history_from (begin, size, flags); | |
661 | } | |
662 | else if (*arg == '-') | |
663 | { | |
664 | arg += 1; | |
665 | size = get_context_size (&arg); | |
666 | ||
667 | no_chunk (arg); | |
668 | ||
669 | target_call_history_from (begin, -size, flags); | |
670 | } | |
671 | else | |
672 | { | |
673 | end = get_insn_number (&arg); | |
674 | ||
675 | no_chunk (arg); | |
676 | ||
677 | target_call_history_range (begin, end, flags); | |
678 | } | |
679 | } | |
680 | else | |
681 | { | |
682 | no_chunk (arg); | |
683 | ||
684 | target_call_history_from (begin, size, flags); | |
685 | } | |
686 | ||
687 | dont_repeat (); | |
688 | } | |
689 | } | |
690 | ||
42c634cb PA |
691 | /* Helper for "set record instruction-history-size" and "set record |
692 | function-call-history-size" input validation. COMMAND_VAR is the | |
693 | variable registered in the command as control variable. *SETTING | |
694 | is the real setting the command allows changing. */ | |
695 | ||
696 | static void | |
9c37696b | 697 | validate_history_size (unsigned int *command_var, unsigned int *setting) |
42c634cb PA |
698 | { |
699 | if (*command_var != UINT_MAX && *command_var > INT_MAX) | |
700 | { | |
701 | unsigned int new_value = *command_var; | |
702 | ||
703 | /* Restore previous value. */ | |
704 | *command_var = *setting; | |
705 | error (_("integer %u out of range"), new_value); | |
706 | } | |
707 | ||
708 | /* Commit new value. */ | |
709 | *setting = *command_var; | |
710 | } | |
711 | ||
712 | /* Called by do_setshow_command. We only want values in the | |
713 | [0..INT_MAX] range, while the command's machinery accepts | |
714 | [0..UINT_MAX]. See command_size_to_target_size. */ | |
715 | ||
716 | static void | |
717 | set_record_insn_history_size (char *args, int from_tty, | |
718 | struct cmd_list_element *c) | |
719 | { | |
720 | validate_history_size (&record_insn_history_size_setshow_var, | |
721 | &record_insn_history_size); | |
722 | } | |
723 | ||
724 | /* Called by do_setshow_command. We only want values in the | |
725 | [0..INT_MAX] range, while the command's machinery accepts | |
726 | [0..UINT_MAX]. See command_size_to_target_size. */ | |
727 | ||
728 | static void | |
729 | set_record_call_history_size (char *args, int from_tty, | |
730 | struct cmd_list_element *c) | |
731 | { | |
732 | validate_history_size (&record_call_history_size_setshow_var, | |
733 | &record_call_history_size); | |
734 | } | |
735 | ||
70221824 PA |
736 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
737 | extern initialize_file_ftype _initialize_record; | |
738 | ||
69d05d38 HZ |
739 | void |
740 | _initialize_record (void) | |
741 | { | |
0156b218 MS |
742 | struct cmd_list_element *c; |
743 | ||
ccce17b0 YQ |
744 | add_setshow_zuinteger_cmd ("record", no_class, &record_debug, |
745 | _("Set debugging of record/replay feature."), | |
746 | _("Show debugging of record/replay feature."), | |
747 | _("When enabled, debugging output for " | |
748 | "record/replay feature is displayed."), | |
749 | NULL, show_record_debug, &setdebuglist, | |
750 | &showdebuglist); | |
69d05d38 | 751 | |
67c86d06 | 752 | add_setshow_uinteger_cmd ("instruction-history-size", no_class, |
42c634cb | 753 | &record_insn_history_size_setshow_var, _("\ |
67c86d06 | 754 | Set number of instructions to print in \"record instruction-history\"."), _("\ |
f81d1120 PA |
755 | Show number of instructions to print in \"record instruction-history\"."), _("\ |
756 | A size of \"unlimited\" means unlimited instructions. The default is 10."), | |
42c634cb PA |
757 | set_record_insn_history_size, NULL, |
758 | &set_record_cmdlist, &show_record_cmdlist); | |
67c86d06 | 759 | |
15984c13 | 760 | add_setshow_uinteger_cmd ("function-call-history-size", no_class, |
42c634cb | 761 | &record_call_history_size_setshow_var, _("\ |
15984c13 | 762 | Set number of function to print in \"record function-call-history\"."), _("\ |
f81d1120 PA |
763 | Show number of functions to print in \"record function-call-history\"."), _("\ |
764 | A size of \"unlimited\" means unlimited lines. The default is 10."), | |
42c634cb PA |
765 | set_record_call_history_size, NULL, |
766 | &set_record_cmdlist, &show_record_cmdlist); | |
15984c13 | 767 | |
0156b218 | 768 | c = add_prefix_cmd ("record", class_obscure, cmd_record_start, |
d02ed0bb | 769 | _("Start recording."), |
0156b218 MS |
770 | &record_cmdlist, "record ", 0, &cmdlist); |
771 | set_cmd_completer (c, filename_completer); | |
772 | ||
69d05d38 HZ |
773 | add_com_alias ("rec", "record", class_obscure, 1); |
774 | add_prefix_cmd ("record", class_support, set_record_command, | |
775 | _("Set record options"), &set_record_cmdlist, | |
776 | "set record ", 0, &setlist); | |
777 | add_alias_cmd ("rec", "record", class_obscure, 1, &setlist); | |
778 | add_prefix_cmd ("record", class_support, show_record_command, | |
779 | _("Show record options"), &show_record_cmdlist, | |
780 | "show record ", 0, &showlist); | |
781 | add_alias_cmd ("rec", "record", class_obscure, 1, &showlist); | |
782 | add_prefix_cmd ("record", class_support, info_record_command, | |
783 | _("Info record options"), &info_record_cmdlist, | |
784 | "info record ", 0, &infolist); | |
785 | add_alias_cmd ("rec", "record", class_obscure, 1, &infolist); | |
786 | ||
0156b218 MS |
787 | c = add_cmd ("save", class_obscure, cmd_record_save, |
788 | _("Save the execution log to a file.\n\ | |
789 | Argument is optional filename.\n\ | |
790 | Default filename is 'gdb_record.<process_id>'."), | |
791 | &record_cmdlist); | |
792 | set_cmd_completer (c, filename_completer); | |
793 | ||
69d05d38 HZ |
794 | add_cmd ("delete", class_obscure, cmd_record_delete, |
795 | _("Delete the rest of execution log and start recording it anew."), | |
796 | &record_cmdlist); | |
797 | add_alias_cmd ("d", "delete", class_obscure, 1, &record_cmdlist); | |
798 | add_alias_cmd ("del", "delete", class_obscure, 1, &record_cmdlist); | |
799 | ||
800 | add_cmd ("stop", class_obscure, cmd_record_stop, | |
801 | _("Stop the record/replay target."), | |
802 | &record_cmdlist); | |
803 | add_alias_cmd ("s", "stop", class_obscure, 1, &record_cmdlist); | |
804 | ||
742ce053 | 805 | add_prefix_cmd ("goto", class_obscure, cmd_record_goto, _("\ |
6b04bdb7 MS |
806 | Restore the program to its state at instruction number N.\n\ |
807 | Argument is instruction number, as shown by 'info record'."), | |
742ce053 MM |
808 | &record_goto_cmdlist, "record goto ", 1, &record_cmdlist); |
809 | ||
810 | add_cmd ("begin", class_obscure, cmd_record_goto_begin, | |
811 | _("Go to the beginning of the execution log."), | |
812 | &record_goto_cmdlist); | |
813 | add_alias_cmd ("start", "begin", class_obscure, 1, &record_goto_cmdlist); | |
814 | ||
815 | add_cmd ("end", class_obscure, cmd_record_goto_end, | |
816 | _("Go to the end of the execution log."), | |
817 | &record_goto_cmdlist); | |
67c86d06 MM |
818 | |
819 | add_cmd ("instruction-history", class_obscure, cmd_record_insn_history, _("\ | |
820 | Print disassembled instructions stored in the execution log.\n\ | |
0c532a29 | 821 | With a /m or /s modifier, source lines are included (if available).\n\ |
67c86d06 MM |
822 | With a /r modifier, raw instructions in hex are included.\n\ |
823 | With a /f modifier, function names are omitted.\n\ | |
946287b7 | 824 | With a /p modifier, current position markers are omitted.\n\ |
67c86d06 MM |
825 | With no argument, disassembles ten more instructions after the previous \ |
826 | disassembly.\n\ | |
827 | \"record instruction-history -\" disassembles ten instructions before a \ | |
828 | previous disassembly.\n\ | |
829 | One argument specifies an instruction number as shown by 'info record', and \ | |
830 | ten instructions are disassembled after that instruction.\n\ | |
831 | Two arguments with comma between them specify starting and ending instruction \ | |
832 | numbers to disassemble.\n\ | |
833 | If the second argument is preceded by '+' or '-', it specifies the distance \ | |
834 | from the first argument.\n\ | |
835 | The number of instructions to disassemble can be defined with \"set record \ | |
836 | instruction-history-size\"."), | |
837 | &record_cmdlist); | |
15984c13 MM |
838 | |
839 | add_cmd ("function-call-history", class_obscure, cmd_record_call_history, _("\ | |
840 | Prints the execution history at function granularity.\n\ | |
841 | It prints one line for each sequence of instructions that belong to the same \ | |
842 | function.\n\ | |
843 | Without modifiers, it prints the function name.\n\ | |
844 | With a /l modifier, the source file and line number range is included.\n\ | |
845 | With a /i modifier, the instruction number range is included.\n\ | |
8710b709 | 846 | With a /c modifier, the output is indented based on the call stack depth.\n\ |
15984c13 MM |
847 | With no argument, prints ten more lines after the previous ten-line print.\n\ |
848 | \"record function-call-history -\" prints ten lines before a previous ten-line \ | |
849 | print.\n\ | |
850 | One argument specifies a function number as shown by 'info record', and \ | |
851 | ten lines are printed after that function.\n\ | |
852 | Two arguments with comma between them specify a range of functions to print.\n\ | |
853 | If the second argument is preceded by '+' or '-', it specifies the distance \ | |
854 | from the first argument.\n\ | |
855 | The number of functions to print can be defined with \"set record \ | |
856 | function-call-history-size\"."), | |
857 | &record_cmdlist); | |
42c634cb PA |
858 | |
859 | /* Sync command control variables. */ | |
860 | record_insn_history_size_setshow_var = record_insn_history_size; | |
861 | record_call_history_size_setshow_var = record_call_history_size; | |
69d05d38 | 862 | } |