Commit | Line | Data |
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c906108c | 1 | /* Multi-process/thread control for GDB, the GNU debugger. |
8926118c | 2 | |
b811d2c2 | 3 | Copyright (C) 1986-2020 Free Software Foundation, Inc. |
8926118c | 4 | |
b6ba6518 | 5 | Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
268a13a5 | 26 | #include "gdbsupport/environ.h" |
c906108c SS |
27 | #include "value.h" |
28 | #include "target.h" | |
29 | #include "gdbthread.h" | |
30 | #include "command.h" | |
31 | #include "gdbcmd.h" | |
4e052eda | 32 | #include "regcache.h" |
02d27625 | 33 | #include "btrace.h" |
c906108c SS |
34 | |
35 | #include <ctype.h> | |
36 | #include <sys/types.h> | |
37 | #include <signal.h> | |
8b93c638 | 38 | #include "ui-out.h" |
76727919 | 39 | #include "observable.h" |
d4fc5b1e | 40 | #include "annotate.h" |
94cc34af | 41 | #include "cli/cli-decode.h" |
6665660a | 42 | #include "cli/cli-option.h" |
60f98dde | 43 | #include "gdb_regex.h" |
aea5b279 | 44 | #include "cli/cli-utils.h" |
243a9253 | 45 | #include "thread-fsm.h" |
5d5658a1 | 46 | #include "tid-parse.h" |
c6609450 | 47 | #include <algorithm> |
268a13a5 | 48 | #include "gdbsupport/gdb_optional.h" |
08036331 | 49 | #include "inline-frame.h" |
5d707134 | 50 | #include "stack.h" |
94cc34af | 51 | |
c378eb4e | 52 | /* Definition of struct thread_info exported to gdbthread.h. */ |
c906108c | 53 | |
c378eb4e | 54 | /* Prototypes for local functions. */ |
c906108c | 55 | |
c906108c SS |
56 | static int highest_thread_num; |
57 | ||
b57bacec PA |
58 | /* True if any thread is, or may be executing. We need to track this |
59 | separately because until we fully sync the thread list, we won't | |
60 | know whether the target is fully stopped, even if we see stop | |
61 | events for all known threads, because any of those threads may have | |
62 | spawned new threads we haven't heard of yet. */ | |
63 | static int threads_executing; | |
64 | ||
a14ed312 | 65 | static int thread_alive (struct thread_info *); |
c906108c | 66 | |
c6609450 PA |
67 | /* RAII type used to increase / decrease the refcount of each thread |
68 | in a given list of threads. */ | |
054e8d9e | 69 | |
c6609450 | 70 | class scoped_inc_dec_ref |
054e8d9e | 71 | { |
c6609450 PA |
72 | public: |
73 | explicit scoped_inc_dec_ref (const std::vector<thread_info *> &thrds) | |
74 | : m_thrds (thrds) | |
75 | { | |
76 | for (thread_info *thr : m_thrds) | |
77 | thr->incref (); | |
78 | } | |
054e8d9e | 79 | |
c6609450 PA |
80 | ~scoped_inc_dec_ref () |
81 | { | |
82 | for (thread_info *thr : m_thrds) | |
83 | thr->decref (); | |
84 | } | |
85 | ||
86 | private: | |
87 | const std::vector<thread_info *> &m_thrds; | |
054e8d9e AA |
88 | }; |
89 | ||
90 | ||
a5321aa4 | 91 | struct thread_info* |
4e1c45ea | 92 | inferior_thread (void) |
8601f500 | 93 | { |
e09875d4 | 94 | struct thread_info *tp = find_thread_ptid (inferior_ptid); |
4e1c45ea PA |
95 | gdb_assert (tp); |
96 | return tp; | |
97 | } | |
8601f500 | 98 | |
5b834a0a PA |
99 | /* Delete the breakpoint pointed at by BP_P, if there's one. */ |
100 | ||
101 | static void | |
102 | delete_thread_breakpoint (struct breakpoint **bp_p) | |
4e1c45ea | 103 | { |
5b834a0a | 104 | if (*bp_p != NULL) |
8601f500 | 105 | { |
5b834a0a PA |
106 | delete_breakpoint (*bp_p); |
107 | *bp_p = NULL; | |
8601f500 MS |
108 | } |
109 | } | |
110 | ||
5b834a0a PA |
111 | void |
112 | delete_step_resume_breakpoint (struct thread_info *tp) | |
113 | { | |
114 | if (tp != NULL) | |
115 | delete_thread_breakpoint (&tp->control.step_resume_breakpoint); | |
116 | } | |
117 | ||
186c406b TT |
118 | void |
119 | delete_exception_resume_breakpoint (struct thread_info *tp) | |
120 | { | |
5b834a0a PA |
121 | if (tp != NULL) |
122 | delete_thread_breakpoint (&tp->control.exception_resume_breakpoint); | |
123 | } | |
124 | ||
34b7e8a6 PA |
125 | /* See gdbthread.h. */ |
126 | ||
127 | void | |
128 | delete_single_step_breakpoints (struct thread_info *tp) | |
129 | { | |
130 | if (tp != NULL) | |
131 | delete_thread_breakpoint (&tp->control.single_step_breakpoints); | |
132 | } | |
133 | ||
5b834a0a PA |
134 | /* Delete the breakpoint pointed at by BP_P at the next stop, if |
135 | there's one. */ | |
136 | ||
137 | static void | |
138 | delete_at_next_stop (struct breakpoint **bp) | |
139 | { | |
140 | if (*bp != NULL) | |
186c406b | 141 | { |
5b834a0a PA |
142 | (*bp)->disposition = disp_del_at_next_stop; |
143 | *bp = NULL; | |
186c406b TT |
144 | } |
145 | } | |
146 | ||
34b7e8a6 PA |
147 | /* See gdbthread.h. */ |
148 | ||
149 | int | |
150 | thread_has_single_step_breakpoints_set (struct thread_info *tp) | |
151 | { | |
152 | return tp->control.single_step_breakpoints != NULL; | |
153 | } | |
154 | ||
155 | /* See gdbthread.h. */ | |
156 | ||
157 | int | |
158 | thread_has_single_step_breakpoint_here (struct thread_info *tp, | |
accd0bcd | 159 | const address_space *aspace, |
34b7e8a6 PA |
160 | CORE_ADDR addr) |
161 | { | |
162 | struct breakpoint *ss_bps = tp->control.single_step_breakpoints; | |
163 | ||
164 | return (ss_bps != NULL | |
165 | && breakpoint_has_location_inserted_here (ss_bps, aspace, addr)); | |
166 | } | |
167 | ||
243a9253 PA |
168 | /* See gdbthread.h. */ |
169 | ||
170 | void | |
171 | thread_cancel_execution_command (struct thread_info *thr) | |
172 | { | |
173 | if (thr->thread_fsm != NULL) | |
174 | { | |
46e3ed7f TT |
175 | thr->thread_fsm->clean_up (thr); |
176 | delete thr->thread_fsm; | |
243a9253 PA |
177 | thr->thread_fsm = NULL; |
178 | } | |
179 | } | |
180 | ||
7c952b6d | 181 | static void |
4f8d22e3 | 182 | clear_thread_inferior_resources (struct thread_info *tp) |
7c952b6d ND |
183 | { |
184 | /* NOTE: this will take care of any left-over step_resume breakpoints, | |
4d8453a5 DJ |
185 | but not any user-specified thread-specific breakpoints. We can not |
186 | delete the breakpoint straight-off, because the inferior might not | |
187 | be stopped at the moment. */ | |
5b834a0a PA |
188 | delete_at_next_stop (&tp->control.step_resume_breakpoint); |
189 | delete_at_next_stop (&tp->control.exception_resume_breakpoint); | |
34b7e8a6 | 190 | delete_at_next_stop (&tp->control.single_step_breakpoints); |
186c406b | 191 | |
5d5658a1 | 192 | delete_longjmp_breakpoint_at_next_stop (tp->global_num); |
f59f708a | 193 | |
16c381f0 | 194 | bpstat_clear (&tp->control.stop_bpstat); |
95e54da7 | 195 | |
02d27625 MM |
196 | btrace_teardown (tp); |
197 | ||
243a9253 | 198 | thread_cancel_execution_command (tp); |
08036331 PA |
199 | |
200 | clear_inline_frame_state (tp->ptid); | |
4f8d22e3 PA |
201 | } |
202 | ||
803bdfe4 YQ |
203 | /* Set the TP's state as exited. */ |
204 | ||
205 | static void | |
206 | set_thread_exited (thread_info *tp, int silent) | |
207 | { | |
208 | /* Dead threads don't need to step-over. Remove from queue. */ | |
209 | if (tp->step_over_next != NULL) | |
210 | thread_step_over_chain_remove (tp); | |
211 | ||
212 | if (tp->state != THREAD_EXITED) | |
213 | { | |
76727919 | 214 | gdb::observers::thread_exit.notify (tp, silent); |
803bdfe4 YQ |
215 | |
216 | /* Tag it as exited. */ | |
217 | tp->state = THREAD_EXITED; | |
218 | ||
219 | /* Clear breakpoints, etc. associated with this thread. */ | |
220 | clear_thread_inferior_resources (tp); | |
221 | } | |
222 | } | |
223 | ||
c906108c | 224 | void |
fba45db2 | 225 | init_thread_list (void) |
c906108c | 226 | { |
7c952b6d | 227 | highest_thread_num = 0; |
8ea051c5 | 228 | |
08036331 | 229 | for (thread_info *tp : all_threads_safe ()) |
c906108c | 230 | { |
08036331 PA |
231 | inferior *inf = tp->inf; |
232 | ||
803bdfe4 YQ |
233 | if (tp->deletable ()) |
234 | delete tp; | |
235 | else | |
236 | set_thread_exited (tp, 1); | |
c906108c | 237 | |
08036331 PA |
238 | inf->thread_list = NULL; |
239 | } | |
c906108c SS |
240 | } |
241 | ||
5d5658a1 PA |
242 | /* Allocate a new thread of inferior INF with target id PTID and add |
243 | it to the thread list. */ | |
e58b0e63 PA |
244 | |
245 | static struct thread_info * | |
5d5658a1 | 246 | new_thread (struct inferior *inf, ptid_t ptid) |
e58b0e63 | 247 | { |
12316564 | 248 | thread_info *tp = new thread_info (inf, ptid); |
b05b1202 | 249 | |
08036331 PA |
250 | if (inf->thread_list == NULL) |
251 | inf->thread_list = tp; | |
b05b1202 PA |
252 | else |
253 | { | |
254 | struct thread_info *last; | |
255 | ||
08036331 | 256 | for (last = inf->thread_list; last->next != NULL; last = last->next) |
b05b1202 PA |
257 | ; |
258 | last->next = tp; | |
259 | } | |
e58b0e63 | 260 | |
e58b0e63 PA |
261 | return tp; |
262 | } | |
263 | ||
0d06e24b | 264 | struct thread_info * |
93815fbf | 265 | add_thread_silent (ptid_t ptid) |
c906108c | 266 | { |
5d5658a1 PA |
267 | struct inferior *inf = find_inferior_ptid (ptid); |
268 | gdb_assert (inf != NULL); | |
c906108c | 269 | |
08036331 | 270 | thread_info *tp = find_thread_ptid (inf, ptid); |
4f8d22e3 PA |
271 | if (tp) |
272 | /* Found an old thread with the same id. It has to be dead, | |
273 | otherwise we wouldn't be adding a new thread with the same id. | |
274 | The OS is reusing this id --- delete it, and recreate a new | |
275 | one. */ | |
276 | { | |
277 | /* In addition to deleting the thread, if this is the current | |
dcf4fbde PA |
278 | thread, then we need to take care that delete_thread doesn't |
279 | really delete the thread if it is inferior_ptid. Create a | |
280 | new template thread in the list with an invalid ptid, switch | |
281 | to it, delete the original thread, reset the new thread's | |
282 | ptid, and switch to it. */ | |
4f8d22e3 | 283 | |
9295a5a9 | 284 | if (inferior_ptid == ptid) |
4f8d22e3 | 285 | { |
00431a78 | 286 | thread_info *new_thr = new_thread (inf, null_ptid); |
dcf4fbde PA |
287 | |
288 | /* Make switch_to_thread not read from the thread. */ | |
00431a78 PA |
289 | new_thr->state = THREAD_EXITED; |
290 | switch_to_no_thread (); | |
4f8d22e3 PA |
291 | |
292 | /* Now we can delete it. */ | |
00431a78 | 293 | delete_thread (tp); |
4f8d22e3 | 294 | |
dcf4fbde | 295 | /* Now reset its ptid, and reswitch inferior_ptid to it. */ |
00431a78 PA |
296 | new_thr->ptid = ptid; |
297 | new_thr->state = THREAD_STOPPED; | |
298 | switch_to_thread (new_thr); | |
4f8d22e3 | 299 | |
00431a78 | 300 | gdb::observers::new_thread.notify (new_thr); |
4f8d22e3 PA |
301 | |
302 | /* All done. */ | |
00431a78 | 303 | return new_thr; |
4f8d22e3 PA |
304 | } |
305 | else | |
306 | /* Just go ahead and delete it. */ | |
00431a78 | 307 | delete_thread (tp); |
4f8d22e3 PA |
308 | } |
309 | ||
5d5658a1 | 310 | tp = new_thread (inf, ptid); |
76727919 | 311 | gdb::observers::new_thread.notify (tp); |
cfc01461 | 312 | |
0d06e24b | 313 | return tp; |
c906108c SS |
314 | } |
315 | ||
93815fbf | 316 | struct thread_info * |
7aabaf9d | 317 | add_thread_with_info (ptid_t ptid, private_thread_info *priv) |
93815fbf VP |
318 | { |
319 | struct thread_info *result = add_thread_silent (ptid); | |
320 | ||
7aabaf9d | 321 | result->priv.reset (priv); |
17faa917 | 322 | |
93815fbf | 323 | if (print_thread_events) |
a068643d | 324 | printf_unfiltered (_("[New %s]\n"), target_pid_to_str (ptid).c_str ()); |
d4fc5b1e NR |
325 | |
326 | annotate_new_thread (); | |
93815fbf VP |
327 | return result; |
328 | } | |
329 | ||
17faa917 DJ |
330 | struct thread_info * |
331 | add_thread (ptid_t ptid) | |
332 | { | |
333 | return add_thread_with_info (ptid, NULL); | |
334 | } | |
335 | ||
7aabaf9d SM |
336 | private_thread_info::~private_thread_info () = default; |
337 | ||
12316564 YQ |
338 | thread_info::thread_info (struct inferior *inf_, ptid_t ptid_) |
339 | : ptid (ptid_), inf (inf_) | |
340 | { | |
341 | gdb_assert (inf_ != NULL); | |
342 | ||
343 | this->global_num = ++highest_thread_num; | |
344 | this->per_inf_num = ++inf_->highest_thread_num; | |
345 | ||
346 | /* Nothing to follow yet. */ | |
347 | memset (&this->pending_follow, 0, sizeof (this->pending_follow)); | |
348 | this->pending_follow.kind = TARGET_WAITKIND_SPURIOUS; | |
349 | this->suspend.waitstatus.kind = TARGET_WAITKIND_IGNORE; | |
350 | } | |
351 | ||
352 | thread_info::~thread_info () | |
353 | { | |
12316564 YQ |
354 | xfree (this->name); |
355 | } | |
356 | ||
08036331 PA |
357 | /* See gdbthread.h. */ |
358 | ||
359 | bool | |
360 | thread_info::deletable () const | |
361 | { | |
362 | /* If this is the current thread, or there's code out there that | |
363 | relies on it existing (refcount > 0) we can't delete yet. */ | |
364 | return refcount () == 0 && ptid != inferior_ptid; | |
365 | } | |
366 | ||
c2829269 PA |
367 | /* Add TP to the end of the step-over chain LIST_P. */ |
368 | ||
369 | static void | |
370 | step_over_chain_enqueue (struct thread_info **list_p, struct thread_info *tp) | |
371 | { | |
372 | gdb_assert (tp->step_over_next == NULL); | |
373 | gdb_assert (tp->step_over_prev == NULL); | |
374 | ||
375 | if (*list_p == NULL) | |
376 | { | |
377 | *list_p = tp; | |
378 | tp->step_over_prev = tp->step_over_next = tp; | |
379 | } | |
380 | else | |
381 | { | |
382 | struct thread_info *head = *list_p; | |
383 | struct thread_info *tail = head->step_over_prev; | |
384 | ||
385 | tp->step_over_prev = tail; | |
386 | tp->step_over_next = head; | |
387 | head->step_over_prev = tp; | |
388 | tail->step_over_next = tp; | |
389 | } | |
390 | } | |
391 | ||
392 | /* Remove TP from step-over chain LIST_P. */ | |
393 | ||
394 | static void | |
395 | step_over_chain_remove (struct thread_info **list_p, struct thread_info *tp) | |
396 | { | |
397 | gdb_assert (tp->step_over_next != NULL); | |
398 | gdb_assert (tp->step_over_prev != NULL); | |
399 | ||
400 | if (*list_p == tp) | |
401 | { | |
402 | if (tp == tp->step_over_next) | |
403 | *list_p = NULL; | |
404 | else | |
405 | *list_p = tp->step_over_next; | |
406 | } | |
407 | ||
408 | tp->step_over_prev->step_over_next = tp->step_over_next; | |
409 | tp->step_over_next->step_over_prev = tp->step_over_prev; | |
410 | tp->step_over_prev = tp->step_over_next = NULL; | |
411 | } | |
412 | ||
413 | /* See gdbthread.h. */ | |
414 | ||
415 | struct thread_info * | |
416 | thread_step_over_chain_next (struct thread_info *tp) | |
417 | { | |
418 | struct thread_info *next = tp->step_over_next; | |
419 | ||
420 | return (next == step_over_queue_head ? NULL : next); | |
421 | } | |
422 | ||
423 | /* See gdbthread.h. */ | |
424 | ||
425 | int | |
426 | thread_is_in_step_over_chain (struct thread_info *tp) | |
427 | { | |
428 | return (tp->step_over_next != NULL); | |
429 | } | |
430 | ||
431 | /* See gdbthread.h. */ | |
432 | ||
433 | void | |
434 | thread_step_over_chain_enqueue (struct thread_info *tp) | |
435 | { | |
436 | step_over_chain_enqueue (&step_over_queue_head, tp); | |
437 | } | |
438 | ||
439 | /* See gdbthread.h. */ | |
440 | ||
441 | void | |
442 | thread_step_over_chain_remove (struct thread_info *tp) | |
443 | { | |
444 | step_over_chain_remove (&step_over_queue_head, tp); | |
445 | } | |
446 | ||
85102364 | 447 | /* Delete the thread referenced by THR. If SILENT, don't notify |
2eab46b1 JB |
448 | the observer of this exit. |
449 | ||
450 | THR must not be NULL or a failed assertion will be raised. */ | |
00431a78 | 451 | |
5e0b29c1 | 452 | static void |
00431a78 | 453 | delete_thread_1 (thread_info *thr, bool silent) |
c906108c | 454 | { |
2eab46b1 | 455 | gdb_assert (thr != nullptr); |
c906108c | 456 | |
2eab46b1 | 457 | struct thread_info *tp, *tpprev = NULL; |
c906108c | 458 | |
08036331 | 459 | for (tp = thr->inf->thread_list; tp; tpprev = tp, tp = tp->next) |
00431a78 | 460 | if (tp == thr) |
c906108c SS |
461 | break; |
462 | ||
463 | if (!tp) | |
464 | return; | |
465 | ||
803bdfe4 | 466 | set_thread_exited (tp, silent); |
c2829269 | 467 | |
803bdfe4 | 468 | if (!tp->deletable ()) |
8c25b497 | 469 | { |
4f8d22e3 PA |
470 | /* Will be really deleted some other time. */ |
471 | return; | |
472 | } | |
473 | ||
c906108c SS |
474 | if (tpprev) |
475 | tpprev->next = tp->next; | |
476 | else | |
08036331 | 477 | tp->inf->thread_list = tp->next; |
c906108c | 478 | |
12316564 | 479 | delete tp; |
c906108c SS |
480 | } |
481 | ||
00431a78 PA |
482 | /* Delete thread THREAD and notify of thread exit. If this is the |
483 | current thread, don't actually delete it, but tag it as exited and | |
484 | do the notification. If this is the user selected thread, clear | |
4f8d22e3 | 485 | it. */ |
00431a78 | 486 | |
5e0b29c1 | 487 | void |
00431a78 | 488 | delete_thread (thread_info *thread) |
5e0b29c1 | 489 | { |
00431a78 | 490 | delete_thread_1 (thread, false /* not silent */); |
5e0b29c1 PA |
491 | } |
492 | ||
493 | void | |
00431a78 | 494 | delete_thread_silent (thread_info *thread) |
5e0b29c1 | 495 | { |
00431a78 | 496 | delete_thread_1 (thread, true /* silent */); |
5e0b29c1 PA |
497 | } |
498 | ||
1e92afda | 499 | struct thread_info * |
5d5658a1 | 500 | find_thread_global_id (int global_id) |
c906108c | 501 | { |
08036331 | 502 | for (thread_info *tp : all_threads ()) |
5d5658a1 PA |
503 | if (tp->global_num == global_id) |
504 | return tp; | |
505 | ||
506 | return NULL; | |
507 | } | |
508 | ||
509 | static struct thread_info * | |
510 | find_thread_id (struct inferior *inf, int thr_num) | |
511 | { | |
08036331 PA |
512 | for (thread_info *tp : inf->threads ()) |
513 | if (tp->per_inf_num == thr_num) | |
c906108c SS |
514 | return tp; |
515 | ||
516 | return NULL; | |
517 | } | |
518 | ||
39f77062 | 519 | /* Find a thread_info by matching PTID. */ |
e04ee09e | 520 | |
0d06e24b | 521 | struct thread_info * |
e09875d4 | 522 | find_thread_ptid (ptid_t ptid) |
0d06e24b | 523 | { |
08036331 PA |
524 | inferior *inf = find_inferior_ptid (ptid); |
525 | if (inf == NULL) | |
526 | return NULL; | |
527 | return find_thread_ptid (inf, ptid); | |
528 | } | |
0d06e24b | 529 | |
08036331 PA |
530 | /* See gdbthread.h. */ |
531 | ||
532 | struct thread_info * | |
533 | find_thread_ptid (inferior *inf, ptid_t ptid) | |
534 | { | |
535 | for (thread_info *tp : inf->threads ()) | |
9295a5a9 | 536 | if (tp->ptid == ptid) |
0d06e24b JM |
537 | return tp; |
538 | ||
539 | return NULL; | |
540 | } | |
541 | ||
e04ee09e KB |
542 | /* See gdbthread.h. */ |
543 | ||
544 | struct thread_info * | |
50a82723 KB |
545 | find_thread_by_handle (gdb::array_view<const gdb_byte> handle, |
546 | struct inferior *inf) | |
e04ee09e | 547 | { |
50a82723 KB |
548 | return target_thread_handle_to_thread_info (handle.data (), |
549 | handle.size (), | |
550 | inf); | |
e04ee09e KB |
551 | } |
552 | ||
0d06e24b JM |
553 | /* |
554 | * Thread iterator function. | |
555 | * | |
556 | * Calls a callback function once for each thread, so long as | |
557 | * the callback function returns false. If the callback function | |
558 | * returns true, the iteration will end and the current thread | |
ae0eee42 | 559 | * will be returned. This can be useful for implementing a |
0d06e24b JM |
560 | * search for a thread with arbitrary attributes, or for applying |
561 | * some operation to every thread. | |
562 | * | |
ae0eee42 | 563 | * FIXME: some of the existing functionality, such as |
0d06e24b JM |
564 | * "Thread apply all", might be rewritten using this functionality. |
565 | */ | |
566 | ||
567 | struct thread_info * | |
fd118b61 KB |
568 | iterate_over_threads (int (*callback) (struct thread_info *, void *), |
569 | void *data) | |
0d06e24b | 570 | { |
08036331 PA |
571 | for (thread_info *tp : all_threads_safe ()) |
572 | if ((*callback) (tp, data)) | |
573 | return tp; | |
0d06e24b JM |
574 | |
575 | return NULL; | |
576 | } | |
577 | ||
08036331 PA |
578 | /* See gdbthread.h. */ |
579 | ||
580 | bool | |
581 | any_thread_p () | |
582 | { | |
583 | for (thread_info *tp ATTRIBUTE_UNUSED : all_threads ()) | |
584 | return true; | |
585 | return false; | |
586 | } | |
587 | ||
20874c92 VP |
588 | int |
589 | thread_count (void) | |
590 | { | |
08036331 PA |
591 | auto rng = all_threads (); |
592 | return std::distance (rng.begin (), rng.end ()); | |
20874c92 VP |
593 | } |
594 | ||
c6609450 PA |
595 | /* Return the number of non-exited threads in the thread list. */ |
596 | ||
597 | static int | |
598 | live_threads_count (void) | |
599 | { | |
08036331 PA |
600 | auto rng = all_non_exited_threads (); |
601 | return std::distance (rng.begin (), rng.end ()); | |
c6609450 PA |
602 | } |
603 | ||
c906108c | 604 | int |
5d5658a1 | 605 | valid_global_thread_id (int global_id) |
c906108c | 606 | { |
08036331 | 607 | for (thread_info *tp : all_threads ()) |
5d5658a1 | 608 | if (tp->global_num == global_id) |
c906108c SS |
609 | return 1; |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
c906108c | 614 | int |
39f77062 | 615 | in_thread_list (ptid_t ptid) |
c906108c | 616 | { |
08036331 | 617 | return find_thread_ptid (ptid) != nullptr; |
c906108c | 618 | } |
8926118c | 619 | |
00431a78 | 620 | /* Finds the first thread of the inferior. */ |
bad34192 | 621 | |
00431a78 PA |
622 | thread_info * |
623 | first_thread_of_inferior (inferior *inf) | |
bad34192 | 624 | { |
08036331 | 625 | return inf->thread_list; |
bad34192 PA |
626 | } |
627 | ||
00431a78 PA |
628 | thread_info * |
629 | any_thread_of_inferior (inferior *inf) | |
2277426b | 630 | { |
00431a78 | 631 | gdb_assert (inf->pid != 0); |
32990ada PA |
632 | |
633 | /* Prefer the current thread. */ | |
00431a78 | 634 | if (inf == current_inferior ()) |
32990ada PA |
635 | return inferior_thread (); |
636 | ||
08036331 PA |
637 | for (thread_info *tp : inf->non_exited_threads ()) |
638 | return tp; | |
2277426b PA |
639 | |
640 | return NULL; | |
641 | } | |
642 | ||
00431a78 PA |
643 | thread_info * |
644 | any_live_thread_of_inferior (inferior *inf) | |
6c95b8df | 645 | { |
32990ada | 646 | struct thread_info *curr_tp = NULL; |
9941e0c5 | 647 | struct thread_info *tp_executing = NULL; |
6c95b8df | 648 | |
00431a78 | 649 | gdb_assert (inf != NULL && inf->pid != 0); |
32990ada PA |
650 | |
651 | /* Prefer the current thread if it's not executing. */ | |
00431a78 | 652 | if (inferior_ptid != null_ptid && current_inferior () == inf) |
32990ada PA |
653 | { |
654 | /* If the current thread is dead, forget it. If it's not | |
655 | executing, use it. Otherwise, still choose it (below), but | |
656 | only if no other non-executing thread is found. */ | |
657 | curr_tp = inferior_thread (); | |
658 | if (curr_tp->state == THREAD_EXITED) | |
659 | curr_tp = NULL; | |
660 | else if (!curr_tp->executing) | |
661 | return curr_tp; | |
662 | } | |
663 | ||
08036331 PA |
664 | for (thread_info *tp : inf->non_exited_threads ()) |
665 | { | |
666 | if (!tp->executing) | |
667 | return tp; | |
32990ada | 668 | |
08036331 PA |
669 | tp_executing = tp; |
670 | } | |
6c95b8df | 671 | |
32990ada PA |
672 | /* If both the current thread and all live threads are executing, |
673 | prefer the current thread. */ | |
674 | if (curr_tp != NULL) | |
675 | return curr_tp; | |
676 | ||
677 | /* Otherwise, just return an executing thread, if any. */ | |
9941e0c5 | 678 | return tp_executing; |
6c95b8df PA |
679 | } |
680 | ||
c378eb4e | 681 | /* Return true if TP is an active thread. */ |
c906108c | 682 | static int |
fba45db2 | 683 | thread_alive (struct thread_info *tp) |
c906108c | 684 | { |
30596231 | 685 | if (tp->state == THREAD_EXITED) |
c906108c | 686 | return 0; |
39f77062 | 687 | if (!target_thread_alive (tp->ptid)) |
4f8d22e3 | 688 | return 0; |
c906108c SS |
689 | return 1; |
690 | } | |
691 | ||
e8032dde PA |
692 | /* See gdbthreads.h. */ |
693 | ||
694 | void | |
fba45db2 | 695 | prune_threads (void) |
c906108c | 696 | { |
08036331 PA |
697 | for (thread_info *tp : all_threads_safe ()) |
698 | if (!thread_alive (tp)) | |
699 | delete_thread (tp); | |
c906108c SS |
700 | } |
701 | ||
8a06aea7 PA |
702 | /* See gdbthreads.h. */ |
703 | ||
704 | void | |
705 | delete_exited_threads (void) | |
706 | { | |
08036331 PA |
707 | for (thread_info *tp : all_threads_safe ()) |
708 | if (tp->state == THREAD_EXITED) | |
709 | delete_thread (tp); | |
8a06aea7 PA |
710 | } |
711 | ||
85102364 | 712 | /* Return true value if stack temporaries are enabled for the thread |
00431a78 | 713 | TP. */ |
6c659fc2 | 714 | |
fdf07f3a | 715 | bool |
00431a78 | 716 | thread_stack_temporaries_enabled_p (thread_info *tp) |
6c659fc2 | 717 | { |
6c659fc2 | 718 | if (tp == NULL) |
fdf07f3a | 719 | return false; |
6c659fc2 SC |
720 | else |
721 | return tp->stack_temporaries_enabled; | |
722 | } | |
723 | ||
724 | /* Push V on to the stack temporaries of the thread with id PTID. */ | |
725 | ||
726 | void | |
00431a78 | 727 | push_thread_stack_temporary (thread_info *tp, struct value *v) |
6c659fc2 | 728 | { |
6c659fc2 | 729 | gdb_assert (tp != NULL && tp->stack_temporaries_enabled); |
fdf07f3a | 730 | tp->stack_temporaries.push_back (v); |
6c659fc2 SC |
731 | } |
732 | ||
fdf07f3a | 733 | /* Return true if VAL is among the stack temporaries of the thread |
00431a78 | 734 | TP. Return false otherwise. */ |
6c659fc2 | 735 | |
fdf07f3a | 736 | bool |
00431a78 | 737 | value_in_thread_stack_temporaries (struct value *val, thread_info *tp) |
6c659fc2 | 738 | { |
6c659fc2 | 739 | gdb_assert (tp != NULL && tp->stack_temporaries_enabled); |
52941706 | 740 | for (value *v : tp->stack_temporaries) |
fdf07f3a TT |
741 | if (v == val) |
742 | return true; | |
6c659fc2 | 743 | |
fdf07f3a | 744 | return false; |
6c659fc2 SC |
745 | } |
746 | ||
747 | /* Return the last of the stack temporaries for thread with id PTID. | |
748 | Return NULL if there are no stack temporaries for the thread. */ | |
749 | ||
00431a78 PA |
750 | value * |
751 | get_last_thread_stack_temporary (thread_info *tp) | |
6c659fc2 SC |
752 | { |
753 | struct value *lastval = NULL; | |
6c659fc2 SC |
754 | |
755 | gdb_assert (tp != NULL); | |
fdf07f3a TT |
756 | if (!tp->stack_temporaries.empty ()) |
757 | lastval = tp->stack_temporaries.back (); | |
6c659fc2 SC |
758 | |
759 | return lastval; | |
760 | } | |
761 | ||
5231c1fd PA |
762 | void |
763 | thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid) | |
764 | { | |
82f73884 PA |
765 | struct inferior *inf; |
766 | struct thread_info *tp; | |
767 | ||
768 | /* It can happen that what we knew as the target inferior id | |
769 | changes. E.g, target remote may only discover the remote process | |
770 | pid after adding the inferior to GDB's list. */ | |
c9657e70 | 771 | inf = find_inferior_ptid (old_ptid); |
e99b03dc | 772 | inf->pid = new_ptid.pid (); |
82f73884 | 773 | |
08036331 | 774 | tp = find_thread_ptid (inf, old_ptid); |
5231c1fd PA |
775 | tp->ptid = new_ptid; |
776 | ||
76727919 | 777 | gdb::observers::thread_ptid_changed.notify (old_ptid, new_ptid); |
5231c1fd PA |
778 | } |
779 | ||
372316f1 PA |
780 | /* See gdbthread.h. */ |
781 | ||
782 | void | |
783 | set_resumed (ptid_t ptid, int resumed) | |
784 | { | |
08036331 PA |
785 | for (thread_info *tp : all_non_exited_threads (ptid)) |
786 | tp->resumed = resumed; | |
372316f1 PA |
787 | } |
788 | ||
4d9d9d04 PA |
789 | /* Helper for set_running, that marks one thread either running or |
790 | stopped. */ | |
791 | ||
792 | static int | |
793 | set_running_thread (struct thread_info *tp, int running) | |
794 | { | |
795 | int started = 0; | |
796 | ||
797 | if (running && tp->state == THREAD_STOPPED) | |
798 | started = 1; | |
799 | tp->state = running ? THREAD_RUNNING : THREAD_STOPPED; | |
800 | ||
801 | if (!running) | |
802 | { | |
803 | /* If the thread is now marked stopped, remove it from | |
804 | the step-over queue, so that we don't try to resume | |
805 | it until the user wants it to. */ | |
806 | if (tp->step_over_next != NULL) | |
807 | thread_step_over_chain_remove (tp); | |
808 | } | |
809 | ||
810 | return started; | |
811 | } | |
812 | ||
00431a78 PA |
813 | /* See gdbthread.h. */ |
814 | ||
815 | void | |
816 | thread_info::set_running (bool running) | |
817 | { | |
818 | if (set_running_thread (this, running)) | |
819 | gdb::observers::target_resumed.notify (this->ptid); | |
820 | } | |
821 | ||
e1ac3328 VP |
822 | void |
823 | set_running (ptid_t ptid, int running) | |
824 | { | |
08036331 PA |
825 | /* We try not to notify the observer if no thread has actually |
826 | changed the running state -- merely to reduce the number of | |
827 | messages to the MI frontend. A frontend is supposed to handle | |
828 | multiple *running notifications just fine. */ | |
829 | bool any_started = false; | |
e1ac3328 | 830 | |
08036331 PA |
831 | for (thread_info *tp : all_non_exited_threads (ptid)) |
832 | if (set_running_thread (tp, running)) | |
833 | any_started = true; | |
4d9d9d04 | 834 | |
4d9d9d04 | 835 | if (any_started) |
76727919 | 836 | gdb::observers::target_resumed.notify (ptid); |
e1ac3328 VP |
837 | } |
838 | ||
8ea051c5 | 839 | |
f2ffa92b PA |
840 | /* Helper for set_executing. Set's the thread's 'executing' field |
841 | from EXECUTING, and if EXECUTING is true also clears the thread's | |
842 | stop_pc. */ | |
843 | ||
844 | static void | |
845 | set_executing_thread (thread_info *thr, bool executing) | |
846 | { | |
847 | thr->executing = executing; | |
848 | if (executing) | |
849 | thr->suspend.stop_pc = ~(CORE_ADDR) 0; | |
850 | } | |
851 | ||
8ea051c5 PA |
852 | void |
853 | set_executing (ptid_t ptid, int executing) | |
854 | { | |
08036331 PA |
855 | for (thread_info *tp : all_non_exited_threads (ptid)) |
856 | set_executing_thread (tp, executing); | |
8ea051c5 | 857 | |
08036331 | 858 | /* It only takes one running thread to spawn more threads. */ |
b57bacec PA |
859 | if (executing) |
860 | threads_executing = 1; | |
861 | /* Only clear the flag if the caller is telling us everything is | |
862 | stopped. */ | |
9295a5a9 | 863 | else if (minus_one_ptid == ptid) |
b57bacec PA |
864 | threads_executing = 0; |
865 | } | |
866 | ||
867 | /* See gdbthread.h. */ | |
868 | ||
869 | int | |
870 | threads_are_executing (void) | |
871 | { | |
872 | return threads_executing; | |
8ea051c5 PA |
873 | } |
874 | ||
252fbfc8 PA |
875 | void |
876 | set_stop_requested (ptid_t ptid, int stop) | |
877 | { | |
08036331 PA |
878 | for (thread_info *tp : all_non_exited_threads (ptid)) |
879 | tp->stop_requested = stop; | |
252fbfc8 PA |
880 | |
881 | /* Call the stop requested observer so other components of GDB can | |
882 | react to this request. */ | |
883 | if (stop) | |
76727919 | 884 | gdb::observers::thread_stop_requested.notify (ptid); |
252fbfc8 PA |
885 | } |
886 | ||
29f49a6a PA |
887 | void |
888 | finish_thread_state (ptid_t ptid) | |
889 | { | |
08036331 | 890 | bool any_started = false; |
29f49a6a | 891 | |
08036331 PA |
892 | for (thread_info *tp : all_non_exited_threads (ptid)) |
893 | if (set_running_thread (tp, tp->executing)) | |
894 | any_started = true; | |
29f49a6a PA |
895 | |
896 | if (any_started) | |
76727919 | 897 | gdb::observers::target_resumed.notify (ptid); |
29f49a6a PA |
898 | } |
899 | ||
a911d87a PA |
900 | /* See gdbthread.h. */ |
901 | ||
902 | void | |
903 | validate_registers_access (void) | |
904 | { | |
905 | /* No selected thread, no registers. */ | |
9295a5a9 | 906 | if (inferior_ptid == null_ptid) |
a911d87a PA |
907 | error (_("No thread selected.")); |
908 | ||
00431a78 PA |
909 | thread_info *tp = inferior_thread (); |
910 | ||
a911d87a | 911 | /* Don't try to read from a dead thread. */ |
00431a78 | 912 | if (tp->state == THREAD_EXITED) |
a911d87a PA |
913 | error (_("The current thread has terminated")); |
914 | ||
915 | /* ... or from a spinning thread. FIXME: This isn't actually fully | |
916 | correct. It'll allow an user-requested access (e.g., "print $pc" | |
917 | at the prompt) when a thread is not executing for some internal | |
918 | reason, but is marked running from the user's perspective. E.g., | |
919 | the thread is waiting for its turn in the step-over queue. */ | |
00431a78 | 920 | if (tp->executing) |
a911d87a PA |
921 | error (_("Selected thread is running.")); |
922 | } | |
923 | ||
cf77c34e MM |
924 | /* See gdbthread.h. */ |
925 | ||
926 | bool | |
00431a78 | 927 | can_access_registers_thread (thread_info *thread) |
cf77c34e MM |
928 | { |
929 | /* No thread, no registers. */ | |
00431a78 | 930 | if (thread == NULL) |
cf77c34e MM |
931 | return false; |
932 | ||
933 | /* Don't try to read from a dead thread. */ | |
00431a78 | 934 | if (thread->state == THREAD_EXITED) |
cf77c34e MM |
935 | return false; |
936 | ||
937 | /* ... or from a spinning thread. FIXME: see validate_registers_access. */ | |
00431a78 | 938 | if (thread->executing) |
cf77c34e MM |
939 | return false; |
940 | ||
941 | return true; | |
942 | } | |
943 | ||
ce4c476a PA |
944 | int |
945 | pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread) | |
946 | { | |
947 | return (pc >= thread->control.step_range_start | |
948 | && pc < thread->control.step_range_end); | |
949 | } | |
950 | ||
5d5658a1 PA |
951 | /* Helper for print_thread_info. Returns true if THR should be |
952 | printed. If REQUESTED_THREADS, a list of GDB ids/ranges, is not | |
953 | NULL, only print THR if its ID is included in the list. GLOBAL_IDS | |
954 | is true if REQUESTED_THREADS is list of global IDs, false if a list | |
955 | of per-inferior thread ids. If PID is not -1, only print THR if it | |
956 | is a thread from the process PID. Otherwise, threads from all | |
957 | attached PIDs are printed. If both REQUESTED_THREADS is not NULL | |
958 | and PID is not -1, then the thread is printed if it belongs to the | |
959 | specified process. Otherwise, an error is raised. */ | |
960 | ||
961 | static int | |
962 | should_print_thread (const char *requested_threads, int default_inf_num, | |
963 | int global_ids, int pid, struct thread_info *thr) | |
964 | { | |
965 | if (requested_threads != NULL && *requested_threads != '\0') | |
966 | { | |
967 | int in_list; | |
968 | ||
969 | if (global_ids) | |
970 | in_list = number_is_in_list (requested_threads, thr->global_num); | |
971 | else | |
972 | in_list = tid_is_in_list (requested_threads, default_inf_num, | |
973 | thr->inf->num, thr->per_inf_num); | |
974 | if (!in_list) | |
975 | return 0; | |
976 | } | |
977 | ||
e99b03dc | 978 | if (pid != -1 && thr->ptid.pid () != pid) |
5d5658a1 PA |
979 | { |
980 | if (requested_threads != NULL && *requested_threads != '\0') | |
981 | error (_("Requested thread not found in requested process")); | |
982 | return 0; | |
983 | } | |
984 | ||
985 | if (thr->state == THREAD_EXITED) | |
986 | return 0; | |
987 | ||
988 | return 1; | |
989 | } | |
990 | ||
75acb486 PA |
991 | /* Return the string to display in "info threads"'s "Target Id" |
992 | column, for TP. */ | |
993 | ||
994 | static std::string | |
995 | thread_target_id_str (thread_info *tp) | |
996 | { | |
a068643d | 997 | std::string target_id = target_pid_to_str (tp->ptid); |
75acb486 PA |
998 | const char *extra_info = target_extra_thread_info (tp); |
999 | const char *name = tp->name != nullptr ? tp->name : target_thread_name (tp); | |
1000 | ||
1001 | if (extra_info != nullptr && name != nullptr) | |
a068643d TT |
1002 | return string_printf ("%s \"%s\" (%s)", target_id.c_str (), name, |
1003 | extra_info); | |
75acb486 | 1004 | else if (extra_info != nullptr) |
a068643d | 1005 | return string_printf ("%s (%s)", target_id.c_str (), extra_info); |
75acb486 | 1006 | else if (name != nullptr) |
a068643d | 1007 | return string_printf ("%s \"%s\"", target_id.c_str (), name); |
75acb486 PA |
1008 | else |
1009 | return target_id; | |
1010 | } | |
1011 | ||
5d5658a1 PA |
1012 | /* Like print_thread_info, but in addition, GLOBAL_IDS indicates |
1013 | whether REQUESTED_THREADS is a list of global or per-inferior | |
1014 | thread ids. */ | |
1015 | ||
1016 | static void | |
1d12d88f | 1017 | print_thread_info_1 (struct ui_out *uiout, const char *requested_threads, |
5d5658a1 PA |
1018 | int global_ids, int pid, |
1019 | int show_global_ids) | |
c906108c | 1020 | { |
5d5658a1 | 1021 | int default_inf_num = current_inferior ()->num; |
c906108c | 1022 | |
dc146f7c | 1023 | update_thread_list (); |
00431a78 PA |
1024 | |
1025 | /* Whether we saw any thread. */ | |
1026 | bool any_thread = false; | |
1027 | /* Whether the current thread is exited. */ | |
1028 | bool current_exited = false; | |
1029 | ||
1030 | thread_info *current_thread = (inferior_ptid != null_ptid | |
1031 | ? inferior_thread () : NULL); | |
4f8d22e3 | 1032 | |
f8cc3da6 TT |
1033 | { |
1034 | /* For backward compatibility, we make a list for MI. A table is | |
1035 | preferable for the CLI, though, because it shows table | |
1036 | headers. */ | |
1037 | gdb::optional<ui_out_emit_list> list_emitter; | |
1038 | gdb::optional<ui_out_emit_table> table_emitter; | |
1039 | ||
1040 | if (uiout->is_mi_like_p ()) | |
1041 | list_emitter.emplace (uiout, "threads"); | |
1042 | else | |
1043 | { | |
1044 | int n_threads = 0; | |
75acb486 PA |
1045 | /* The width of the "Target Id" column. Grown below to |
1046 | accommodate the largest entry. */ | |
1047 | size_t target_id_col_width = 17; | |
a7658b96 | 1048 | |
08036331 | 1049 | for (thread_info *tp : all_threads ()) |
f8cc3da6 TT |
1050 | { |
1051 | if (!should_print_thread (requested_threads, default_inf_num, | |
1052 | global_ids, pid, tp)) | |
1053 | continue; | |
a7658b96 | 1054 | |
75acb486 PA |
1055 | if (!uiout->is_mi_like_p ()) |
1056 | { | |
1057 | target_id_col_width | |
1058 | = std::max (target_id_col_width, | |
1059 | thread_target_id_str (tp).size ()); | |
1060 | } | |
1061 | ||
f8cc3da6 TT |
1062 | ++n_threads; |
1063 | } | |
a7658b96 | 1064 | |
f8cc3da6 TT |
1065 | if (n_threads == 0) |
1066 | { | |
1067 | if (requested_threads == NULL || *requested_threads == '\0') | |
1068 | uiout->message (_("No threads.\n")); | |
1069 | else | |
1070 | uiout->message (_("No threads match '%s'.\n"), | |
1071 | requested_threads); | |
1072 | return; | |
1073 | } | |
a7658b96 | 1074 | |
0d64823e | 1075 | table_emitter.emplace (uiout, show_global_ids ? 5 : 4, |
f8cc3da6 | 1076 | n_threads, "threads"); |
a7658b96 | 1077 | |
f8cc3da6 | 1078 | uiout->table_header (1, ui_left, "current", ""); |
0d64823e SM |
1079 | uiout->table_header (4, ui_left, "id-in-tg", "Id"); |
1080 | if (show_global_ids) | |
f8cc3da6 | 1081 | uiout->table_header (4, ui_left, "id", "GId"); |
75acb486 PA |
1082 | uiout->table_header (target_id_col_width, ui_left, |
1083 | "target-id", "Target Id"); | |
f8cc3da6 TT |
1084 | uiout->table_header (1, ui_left, "frame", "Frame"); |
1085 | uiout->table_body (); | |
1086 | } | |
a7658b96 | 1087 | |
f8cc3da6 | 1088 | /* We'll be switching threads temporarily. */ |
5ed8105e | 1089 | scoped_restore_current_thread restore_thread; |
8e8901c5 | 1090 | |
08036331 PA |
1091 | for (inferior *inf : all_inferiors ()) |
1092 | for (thread_info *tp : inf->threads ()) | |
3061113b SM |
1093 | { |
1094 | int core; | |
1095 | ||
1096 | any_thread = true; | |
1097 | if (tp == current_thread && tp->state == THREAD_EXITED) | |
1098 | current_exited = true; | |
1099 | ||
1100 | if (!should_print_thread (requested_threads, default_inf_num, | |
1101 | global_ids, pid, tp)) | |
1102 | continue; | |
1103 | ||
1104 | ui_out_emit_tuple tuple_emitter (uiout, NULL); | |
1105 | ||
1106 | if (!uiout->is_mi_like_p ()) | |
1107 | { | |
1108 | if (tp == current_thread) | |
1109 | uiout->field_string ("current", "*"); | |
1110 | else | |
1111 | uiout->field_skip ("current"); | |
1112 | ||
1113 | uiout->field_string ("id-in-tg", print_thread_id (tp)); | |
1114 | } | |
1115 | ||
1116 | if (show_global_ids || uiout->is_mi_like_p ()) | |
1117 | uiout->field_signed ("id", tp->global_num); | |
1118 | ||
1119 | /* For the CLI, we stuff everything into the target-id field. | |
1120 | This is a gross hack to make the output come out looking | |
1121 | correct. The underlying problem here is that ui-out has no | |
1122 | way to specify that a field's space allocation should be | |
1123 | shared by several fields. For MI, we do the right thing | |
1124 | instead. */ | |
1125 | ||
1126 | if (uiout->is_mi_like_p ()) | |
1127 | { | |
1128 | uiout->field_string ("target-id", target_pid_to_str (tp->ptid)); | |
1129 | ||
1130 | const char *extra_info = target_extra_thread_info (tp); | |
1131 | if (extra_info != nullptr) | |
1132 | uiout->field_string ("details", extra_info); | |
1133 | ||
1134 | const char *name = (tp->name != nullptr | |
1135 | ? tp->name | |
1136 | : target_thread_name (tp)); | |
1137 | if (name != NULL) | |
1138 | uiout->field_string ("name", name); | |
1139 | } | |
1140 | else | |
1141 | { | |
1142 | uiout->field_string ("target-id", | |
1143 | thread_target_id_str (tp).c_str ()); | |
1144 | } | |
1145 | ||
1146 | if (tp->state == THREAD_RUNNING) | |
1147 | uiout->text ("(running)\n"); | |
1148 | else | |
1149 | { | |
1150 | /* The switch below puts us at the top of the stack (leaf | |
1151 | frame). */ | |
1152 | switch_to_thread (tp); | |
1153 | print_stack_frame (get_selected_frame (NULL), | |
1154 | /* For MI output, print frame level. */ | |
1155 | uiout->is_mi_like_p (), | |
1156 | LOCATION, 0); | |
1157 | } | |
1158 | ||
1159 | if (uiout->is_mi_like_p ()) | |
1160 | { | |
1161 | const char *state = "stopped"; | |
1162 | ||
1163 | if (tp->state == THREAD_RUNNING) | |
1164 | state = "running"; | |
1165 | uiout->field_string ("state", state); | |
1166 | } | |
1167 | ||
1168 | core = target_core_of_thread (tp->ptid); | |
1169 | if (uiout->is_mi_like_p () && core != -1) | |
1170 | uiout->field_signed ("core", core); | |
1171 | } | |
c906108c | 1172 | |
5ed8105e | 1173 | /* This end scope restores the current thread and the frame |
f8cc3da6 TT |
1174 | selected before the "info threads" command, and it finishes the |
1175 | ui-out list or table. */ | |
5ed8105e PA |
1176 | } |
1177 | ||
aea5b279 | 1178 | if (pid == -1 && requested_threads == NULL) |
8e8901c5 | 1179 | { |
00431a78 | 1180 | if (uiout->is_mi_like_p () && inferior_ptid != null_ptid) |
381befee | 1181 | uiout->field_signed ("current-thread-id", current_thread->global_num); |
5d5658a1 | 1182 | |
00431a78 | 1183 | if (inferior_ptid != null_ptid && current_exited) |
112e8700 | 1184 | uiout->message ("\n\ |
5d5658a1 PA |
1185 | The current thread <Thread ID %s> has terminated. See `help thread'.\n", |
1186 | print_thread_id (inferior_thread ())); | |
00431a78 | 1187 | else if (any_thread && inferior_ptid == null_ptid) |
112e8700 | 1188 | uiout->message ("\n\ |
d729566a | 1189 | No selected thread. See `help thread'.\n"); |
c906108c | 1190 | } |
c906108c SS |
1191 | } |
1192 | ||
5d5658a1 | 1193 | /* See gdbthread.h. */ |
8e8901c5 | 1194 | |
5d5658a1 | 1195 | void |
24c54127 TT |
1196 | print_thread_info (struct ui_out *uiout, const char *requested_threads, |
1197 | int pid) | |
5d5658a1 PA |
1198 | { |
1199 | print_thread_info_1 (uiout, requested_threads, 1, pid, 0); | |
1200 | } | |
1201 | ||
54d66006 PA |
1202 | /* The options for the "info threads" command. */ |
1203 | ||
1204 | struct info_threads_opts | |
1205 | { | |
1206 | /* For "-gid". */ | |
491144b5 | 1207 | bool show_global_ids = false; |
54d66006 PA |
1208 | }; |
1209 | ||
1210 | static const gdb::option::option_def info_threads_option_defs[] = { | |
1211 | ||
1212 | gdb::option::flag_option_def<info_threads_opts> { | |
1213 | "gid", | |
1214 | [] (info_threads_opts *opts) { return &opts->show_global_ids; }, | |
1215 | N_("Show global thread IDs."), | |
1216 | }, | |
1217 | ||
1218 | }; | |
1219 | ||
1220 | /* Create an option_def_group for the "info threads" options, with | |
1221 | IT_OPTS as context. */ | |
1222 | ||
1223 | static inline gdb::option::option_def_group | |
1224 | make_info_threads_options_def_group (info_threads_opts *it_opts) | |
1225 | { | |
1226 | return {{info_threads_option_defs}, it_opts}; | |
1227 | } | |
1228 | ||
5d5658a1 | 1229 | /* Implementation of the "info threads" command. |
60f98dde MS |
1230 | |
1231 | Note: this has the drawback that it _really_ switches | |
ae0eee42 PA |
1232 | threads, which frees the frame cache. A no-side |
1233 | effects info-threads command would be nicer. */ | |
8e8901c5 VP |
1234 | |
1235 | static void | |
1d12d88f | 1236 | info_threads_command (const char *arg, int from_tty) |
8e8901c5 | 1237 | { |
54d66006 PA |
1238 | info_threads_opts it_opts; |
1239 | ||
1240 | auto grp = make_info_threads_options_def_group (&it_opts); | |
1241 | gdb::option::process_options | |
1242 | (&arg, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, grp); | |
1243 | ||
1244 | print_thread_info_1 (current_uiout, arg, 0, -1, it_opts.show_global_ids); | |
1245 | } | |
1246 | ||
1247 | /* Completer for the "info threads" command. */ | |
c84f6bbf | 1248 | |
54d66006 PA |
1249 | static void |
1250 | info_threads_command_completer (struct cmd_list_element *ignore, | |
1251 | completion_tracker &tracker, | |
1252 | const char *text, const char *word_ignored) | |
1253 | { | |
1254 | const auto grp = make_info_threads_options_def_group (nullptr); | |
1255 | ||
1256 | if (gdb::option::complete_options | |
1257 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, grp)) | |
1258 | return; | |
1259 | ||
1260 | /* Convenience to let the user know what the option can accept. */ | |
1261 | if (*text == '\0') | |
c84f6bbf | 1262 | { |
54d66006 PA |
1263 | gdb::option::complete_on_all_options (tracker, grp); |
1264 | /* Keep this "ID" in sync with what "help info threads" | |
1265 | says. */ | |
1266 | tracker.add_completion (make_unique_xstrdup ("ID")); | |
c84f6bbf | 1267 | } |
8e8901c5 VP |
1268 | } |
1269 | ||
6efcd9a8 PA |
1270 | /* See gdbthread.h. */ |
1271 | ||
1272 | void | |
1273 | switch_to_thread_no_regs (struct thread_info *thread) | |
1274 | { | |
3a3fd0fd | 1275 | struct inferior *inf = thread->inf; |
6efcd9a8 | 1276 | |
6efcd9a8 PA |
1277 | set_current_program_space (inf->pspace); |
1278 | set_current_inferior (inf); | |
1279 | ||
1280 | inferior_ptid = thread->ptid; | |
6efcd9a8 PA |
1281 | } |
1282 | ||
00431a78 | 1283 | /* See gdbthread.h. */ |
c906108c | 1284 | |
00431a78 | 1285 | void |
3a3fd0fd | 1286 | switch_to_no_thread () |
c906108c | 1287 | { |
3a3fd0fd PA |
1288 | if (inferior_ptid == null_ptid) |
1289 | return; | |
6c95b8df | 1290 | |
3a3fd0fd PA |
1291 | inferior_ptid = null_ptid; |
1292 | reinit_frame_cache (); | |
3a3fd0fd PA |
1293 | } |
1294 | ||
00431a78 | 1295 | /* See gdbthread.h. */ |
6c95b8df | 1296 | |
00431a78 | 1297 | void |
3a3fd0fd PA |
1298 | switch_to_thread (thread_info *thr) |
1299 | { | |
1300 | gdb_assert (thr != NULL); | |
1301 | ||
1302 | if (inferior_ptid == thr->ptid) | |
c906108c SS |
1303 | return; |
1304 | ||
3a3fd0fd PA |
1305 | switch_to_thread_no_regs (thr); |
1306 | ||
35f196d9 | 1307 | reinit_frame_cache (); |
c906108c SS |
1308 | } |
1309 | ||
268a13a5 | 1310 | /* See gdbsupport/common-gdbthread.h. */ |
3a3fd0fd PA |
1311 | |
1312 | void | |
1313 | switch_to_thread (ptid_t ptid) | |
c906108c | 1314 | { |
00431a78 PA |
1315 | thread_info *thr = find_thread_ptid (ptid); |
1316 | switch_to_thread (thr); | |
99b3d574 DP |
1317 | } |
1318 | ||
1319 | static void | |
4f8d22e3 | 1320 | restore_selected_frame (struct frame_id a_frame_id, int frame_level) |
99b3d574 | 1321 | { |
4f8d22e3 PA |
1322 | struct frame_info *frame = NULL; |
1323 | int count; | |
1324 | ||
eb8c0621 TT |
1325 | /* This means there was no selected frame. */ |
1326 | if (frame_level == -1) | |
1327 | { | |
1328 | select_frame (NULL); | |
1329 | return; | |
1330 | } | |
1331 | ||
4f8d22e3 PA |
1332 | gdb_assert (frame_level >= 0); |
1333 | ||
1334 | /* Restore by level first, check if the frame id is the same as | |
1335 | expected. If that fails, try restoring by frame id. If that | |
1336 | fails, nothing to do, just warn the user. */ | |
1337 | ||
1338 | count = frame_level; | |
1339 | frame = find_relative_frame (get_current_frame (), &count); | |
1340 | if (count == 0 | |
1341 | && frame != NULL | |
005ca36a JB |
1342 | /* The frame ids must match - either both valid or both outer_frame_id. |
1343 | The latter case is not failsafe, but since it's highly unlikely | |
4f8d22e3 PA |
1344 | the search by level finds the wrong frame, it's 99.9(9)% of |
1345 | the time (for all practical purposes) safe. */ | |
005ca36a | 1346 | && frame_id_eq (get_frame_id (frame), a_frame_id)) |
4f8d22e3 PA |
1347 | { |
1348 | /* Cool, all is fine. */ | |
1349 | select_frame (frame); | |
1350 | return; | |
1351 | } | |
99b3d574 | 1352 | |
4f8d22e3 PA |
1353 | frame = frame_find_by_id (a_frame_id); |
1354 | if (frame != NULL) | |
1355 | { | |
1356 | /* Cool, refound it. */ | |
1357 | select_frame (frame); | |
1358 | return; | |
1359 | } | |
99b3d574 | 1360 | |
0c501536 PA |
1361 | /* Nothing else to do, the frame layout really changed. Select the |
1362 | innermost stack frame. */ | |
1363 | select_frame (get_current_frame ()); | |
1364 | ||
1365 | /* Warn the user. */ | |
112e8700 | 1366 | if (frame_level > 0 && !current_uiout->is_mi_like_p ()) |
99b3d574 | 1367 | { |
3e43a32a | 1368 | warning (_("Couldn't restore frame #%d in " |
e0162910 | 1369 | "current thread. Bottom (innermost) frame selected:"), |
4f8d22e3 PA |
1370 | frame_level); |
1371 | /* For MI, we should probably have a notification about | |
1372 | current frame change. But this error is not very | |
1373 | likely, so don't bother for now. */ | |
08d72866 | 1374 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
1375 | } |
1376 | } | |
1377 | ||
873657b9 PA |
1378 | void |
1379 | scoped_restore_current_thread::restore () | |
6ecce94d | 1380 | { |
803bdfe4 YQ |
1381 | /* If an entry of thread_info was previously selected, it won't be |
1382 | deleted because we've increased its refcount. The thread represented | |
1383 | by this thread_info entry may have already exited (due to normal exit, | |
1384 | detach, etc), so the thread_info.state is THREAD_EXITED. */ | |
5ed8105e | 1385 | if (m_thread != NULL |
803bdfe4 YQ |
1386 | /* If the previously selected thread belonged to a process that has |
1387 | in the mean time exited (or killed, detached, etc.), then don't revert | |
1388 | back to it, but instead simply drop back to no thread selected. */ | |
5ed8105e PA |
1389 | && m_inf->pid != 0) |
1390 | switch_to_thread (m_thread); | |
88fc996f | 1391 | else |
6c95b8df | 1392 | { |
3a3fd0fd | 1393 | switch_to_no_thread (); |
5ed8105e | 1394 | set_current_inferior (m_inf); |
6c95b8df | 1395 | } |
94cc34af | 1396 | |
4f8d22e3 PA |
1397 | /* The running state of the originally selected thread may have |
1398 | changed, so we have to recheck it here. */ | |
9295a5a9 | 1399 | if (inferior_ptid != null_ptid |
5ed8105e | 1400 | && m_was_stopped |
00431a78 | 1401 | && m_thread->state == THREAD_STOPPED |
4f8d22e3 PA |
1402 | && target_has_registers |
1403 | && target_has_stack | |
1404 | && target_has_memory) | |
5ed8105e | 1405 | restore_selected_frame (m_selected_frame_id, m_selected_frame_level); |
873657b9 PA |
1406 | } |
1407 | ||
1408 | scoped_restore_current_thread::~scoped_restore_current_thread () | |
1409 | { | |
1410 | if (!m_dont_restore) | |
1411 | { | |
1412 | try | |
1413 | { | |
1414 | restore (); | |
1415 | } | |
1416 | catch (const gdb_exception &ex) | |
1417 | { | |
1418 | /* We're in a dtor, there's really nothing else we can do | |
1419 | but swallow the exception. */ | |
1420 | } | |
1421 | } | |
5d502164 | 1422 | |
5ed8105e PA |
1423 | if (m_thread != NULL) |
1424 | m_thread->decref (); | |
1425 | m_inf->decref (); | |
6ecce94d AC |
1426 | } |
1427 | ||
5ed8105e | 1428 | scoped_restore_current_thread::scoped_restore_current_thread () |
6ecce94d | 1429 | { |
5ed8105e PA |
1430 | m_thread = NULL; |
1431 | m_inf = current_inferior (); | |
4f8d22e3 | 1432 | |
9295a5a9 | 1433 | if (inferior_ptid != null_ptid) |
d729566a | 1434 | { |
00431a78 | 1435 | thread_info *tp = inferior_thread (); |
12316564 YQ |
1436 | struct frame_info *frame; |
1437 | ||
5ed8105e PA |
1438 | m_was_stopped = tp->state == THREAD_STOPPED; |
1439 | if (m_was_stopped | |
d729566a PA |
1440 | && target_has_registers |
1441 | && target_has_stack | |
1442 | && target_has_memory) | |
eb8c0621 TT |
1443 | { |
1444 | /* When processing internal events, there might not be a | |
1445 | selected frame. If we naively call get_selected_frame | |
1446 | here, then we can end up reading debuginfo for the | |
1447 | current frame, but we don't generally need the debuginfo | |
1448 | at this point. */ | |
1449 | frame = get_selected_frame_if_set (); | |
1450 | } | |
d729566a PA |
1451 | else |
1452 | frame = NULL; | |
4f8d22e3 | 1453 | |
5ed8105e PA |
1454 | m_selected_frame_id = get_frame_id (frame); |
1455 | m_selected_frame_level = frame_relative_level (frame); | |
d729566a | 1456 | |
f6223dbb | 1457 | tp->incref (); |
5ed8105e | 1458 | m_thread = tp; |
d729566a | 1459 | } |
4f8d22e3 | 1460 | |
5ed8105e | 1461 | m_inf->incref (); |
6ecce94d AC |
1462 | } |
1463 | ||
43792cf0 PA |
1464 | /* See gdbthread.h. */ |
1465 | ||
f303dbd6 PA |
1466 | int |
1467 | show_thread_that_caused_stop (void) | |
1468 | { | |
1469 | return highest_thread_num > 1; | |
1470 | } | |
1471 | ||
1472 | /* See gdbthread.h. */ | |
1473 | ||
5d5658a1 PA |
1474 | int |
1475 | show_inferior_qualified_tids (void) | |
1476 | { | |
1477 | return (inferior_list->next != NULL || inferior_list->num != 1); | |
1478 | } | |
1479 | ||
1480 | /* See gdbthread.h. */ | |
1481 | ||
43792cf0 PA |
1482 | const char * |
1483 | print_thread_id (struct thread_info *thr) | |
1484 | { | |
1485 | char *s = get_print_cell (); | |
1486 | ||
5d5658a1 PA |
1487 | if (show_inferior_qualified_tids ()) |
1488 | xsnprintf (s, PRINT_CELL_SIZE, "%d.%d", thr->inf->num, thr->per_inf_num); | |
1489 | else | |
1490 | xsnprintf (s, PRINT_CELL_SIZE, "%d", thr->per_inf_num); | |
43792cf0 PA |
1491 | return s; |
1492 | } | |
1493 | ||
6665660a PA |
1494 | /* Sort an array of struct thread_info pointers by thread ID (first by |
1495 | inferior number, and then by per-inferior thread number). Sorts in | |
1496 | ascending order. */ | |
253828f1 | 1497 | |
6665660a PA |
1498 | static bool |
1499 | tp_array_compar_ascending (const thread_info *a, const thread_info *b) | |
1500 | { | |
1501 | if (a->inf->num != b->inf->num) | |
1502 | return a->inf->num < b->inf->num; | |
1503 | ||
1504 | return (a->per_inf_num < b->per_inf_num); | |
1505 | } | |
253828f1 | 1506 | |
6665660a PA |
1507 | /* Sort an array of struct thread_info pointers by thread ID (first by |
1508 | inferior number, and then by per-inferior thread number). Sorts in | |
1509 | descending order. */ | |
253828f1 | 1510 | |
c6609450 | 1511 | static bool |
6665660a | 1512 | tp_array_compar_descending (const thread_info *a, const thread_info *b) |
253828f1 | 1513 | { |
5d5658a1 | 1514 | if (a->inf->num != b->inf->num) |
6665660a | 1515 | return a->inf->num > b->inf->num; |
253828f1 | 1516 | |
6665660a | 1517 | return (a->per_inf_num > b->per_inf_num); |
253828f1 JK |
1518 | } |
1519 | ||
1fe75df7 PW |
1520 | /* Switch to thread THR and execute CMD. |
1521 | FLAGS.QUIET controls the printing of the thread information. | |
1522 | FLAGS.CONT and FLAGS.SILENT control how to handle errors. */ | |
1523 | ||
1524 | static void | |
1525 | thr_try_catch_cmd (thread_info *thr, const char *cmd, int from_tty, | |
1526 | const qcs_flags &flags) | |
1527 | { | |
1528 | switch_to_thread (thr); | |
a70b8144 | 1529 | try |
1fe75df7 | 1530 | { |
8a522c6c PW |
1531 | std::string cmd_result = execute_command_to_string |
1532 | (cmd, from_tty, gdb_stdout->term_out ()); | |
1fe75df7 PW |
1533 | if (!flags.silent || cmd_result.length () > 0) |
1534 | { | |
1535 | if (!flags.quiet) | |
1536 | printf_filtered (_("\nThread %s (%s):\n"), | |
1537 | print_thread_id (thr), | |
a068643d | 1538 | target_pid_to_str (inferior_ptid).c_str ()); |
1fe75df7 PW |
1539 | printf_filtered ("%s", cmd_result.c_str ()); |
1540 | } | |
1541 | } | |
230d2906 | 1542 | catch (const gdb_exception_error &ex) |
1fe75df7 PW |
1543 | { |
1544 | if (!flags.silent) | |
1545 | { | |
1546 | if (!flags.quiet) | |
1547 | printf_filtered (_("\nThread %s (%s):\n"), | |
1548 | print_thread_id (thr), | |
a068643d | 1549 | target_pid_to_str (inferior_ptid).c_str ()); |
1fe75df7 | 1550 | if (flags.cont) |
3d6e9d23 | 1551 | printf_filtered ("%s\n", ex.what ()); |
1fe75df7 | 1552 | else |
eedc3f4f | 1553 | throw; |
1fe75df7 PW |
1554 | } |
1555 | } | |
1fe75df7 PW |
1556 | } |
1557 | ||
6665660a PA |
1558 | /* Option definition of "thread apply"'s "-ascending" option. */ |
1559 | ||
1560 | static const gdb::option::flag_option_def<> ascending_option_def = { | |
1561 | "ascending", | |
1562 | N_("\ | |
1563 | Call COMMAND for all threads in ascending order.\n\ | |
1564 | The default is descending order."), | |
1565 | }; | |
1566 | ||
1567 | /* The qcs command line flags for the "thread apply" commands. Keep | |
1568 | this in sync with the "frame apply" commands. */ | |
1569 | ||
1570 | using qcs_flag_option_def | |
1571 | = gdb::option::flag_option_def<qcs_flags>; | |
1572 | ||
1573 | static const gdb::option::option_def thr_qcs_flags_option_defs[] = { | |
1574 | qcs_flag_option_def { | |
1575 | "q", [] (qcs_flags *opt) { return &opt->quiet; }, | |
1576 | N_("Disables printing the thread information."), | |
1577 | }, | |
1578 | ||
1579 | qcs_flag_option_def { | |
1580 | "c", [] (qcs_flags *opt) { return &opt->cont; }, | |
1581 | N_("Print any error raised by COMMAND and continue."), | |
1582 | }, | |
1583 | ||
1584 | qcs_flag_option_def { | |
1585 | "s", [] (qcs_flags *opt) { return &opt->silent; }, | |
1586 | N_("Silently ignore any errors or empty output produced by COMMAND."), | |
1587 | }, | |
1588 | }; | |
1589 | ||
1590 | /* Create an option_def_group for the "thread apply all" options, with | |
1591 | ASCENDING and FLAGS as context. */ | |
1592 | ||
1593 | static inline std::array<gdb::option::option_def_group, 2> | |
491144b5 | 1594 | make_thread_apply_all_options_def_group (bool *ascending, |
6665660a PA |
1595 | qcs_flags *flags) |
1596 | { | |
1597 | return {{ | |
66eb1ed3 PA |
1598 | { {ascending_option_def.def ()}, ascending}, |
1599 | { {thr_qcs_flags_option_defs}, flags }, | |
6665660a PA |
1600 | }}; |
1601 | } | |
1602 | ||
1603 | /* Create an option_def_group for the "thread apply" options, with | |
1604 | FLAGS as context. */ | |
1605 | ||
1606 | static inline gdb::option::option_def_group | |
1607 | make_thread_apply_options_def_group (qcs_flags *flags) | |
1608 | { | |
66eb1ed3 | 1609 | return {{thr_qcs_flags_option_defs}, flags}; |
6665660a PA |
1610 | } |
1611 | ||
c906108c | 1612 | /* Apply a GDB command to a list of threads. List syntax is a whitespace |
224608c3 PW |
1613 | separated list of numbers, or ranges, or the keyword `all'. Ranges consist |
1614 | of two numbers separated by a hyphen. Examples: | |
c906108c | 1615 | |
c5aa993b JM |
1616 | thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4 |
1617 | thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9 | |
224608c3 | 1618 | thread apply all x/i $pc Apply x/i $pc cmd to all threads. */ |
c906108c SS |
1619 | |
1620 | static void | |
5fed81ff | 1621 | thread_apply_all_command (const char *cmd, int from_tty) |
c906108c | 1622 | { |
491144b5 | 1623 | bool ascending = false; |
1fe75df7 PW |
1624 | qcs_flags flags; |
1625 | ||
6665660a PA |
1626 | auto group = make_thread_apply_all_options_def_group (&ascending, |
1627 | &flags); | |
1628 | gdb::option::process_options | |
1629 | (&cmd, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group); | |
1fe75df7 | 1630 | |
6665660a | 1631 | validate_flags_qcs ("thread apply all", &flags); |
253828f1 | 1632 | |
c906108c | 1633 | if (cmd == NULL || *cmd == '\000') |
1fe75df7 | 1634 | error (_("Please specify a command at the end of 'thread apply all'")); |
94cc34af | 1635 | |
dc146f7c | 1636 | update_thread_list (); |
e9d196c5 | 1637 | |
c6609450 | 1638 | int tc = live_threads_count (); |
a25d8bf9 | 1639 | if (tc != 0) |
054e8d9e | 1640 | { |
c6609450 PA |
1641 | /* Save a copy of the thread list and increment each thread's |
1642 | refcount while executing the command in the context of each | |
1643 | thread, in case the command is one that wipes threads. E.g., | |
1644 | detach, kill, disconnect, etc., or even normally continuing | |
1645 | over an inferior or thread exit. */ | |
1646 | std::vector<thread_info *> thr_list_cpy; | |
1647 | thr_list_cpy.reserve (tc); | |
054e8d9e | 1648 | |
08036331 PA |
1649 | for (thread_info *tp : all_non_exited_threads ()) |
1650 | thr_list_cpy.push_back (tp); | |
1651 | gdb_assert (thr_list_cpy.size () == tc); | |
054e8d9e | 1652 | |
c6609450 PA |
1653 | /* Increment the refcounts, and restore them back on scope |
1654 | exit. */ | |
1655 | scoped_inc_dec_ref inc_dec_ref (thr_list_cpy); | |
253828f1 | 1656 | |
6665660a PA |
1657 | auto *sorter = (ascending |
1658 | ? tp_array_compar_ascending | |
1659 | : tp_array_compar_descending); | |
1660 | std::sort (thr_list_cpy.begin (), thr_list_cpy.end (), sorter); | |
054e8d9e | 1661 | |
5ed8105e PA |
1662 | scoped_restore_current_thread restore_thread; |
1663 | ||
c6609450 PA |
1664 | for (thread_info *thr : thr_list_cpy) |
1665 | if (thread_alive (thr)) | |
1fe75df7 | 1666 | thr_try_catch_cmd (thr, cmd, from_tty, flags); |
054e8d9e | 1667 | } |
c906108c SS |
1668 | } |
1669 | ||
6665660a PA |
1670 | /* Completer for "thread apply [ID list]". */ |
1671 | ||
1672 | static void | |
1673 | thread_apply_command_completer (cmd_list_element *ignore, | |
1674 | completion_tracker &tracker, | |
1675 | const char *text, const char * /*word*/) | |
1676 | { | |
1677 | /* Don't leave this to complete_options because there's an early | |
1678 | return below. */ | |
1679 | tracker.set_use_custom_word_point (true); | |
1680 | ||
1681 | tid_range_parser parser; | |
1682 | parser.init (text, current_inferior ()->num); | |
1683 | ||
1684 | try | |
1685 | { | |
1686 | while (!parser.finished ()) | |
1687 | { | |
1688 | int inf_num, thr_start, thr_end; | |
1689 | ||
1690 | if (!parser.get_tid_range (&inf_num, &thr_start, &thr_end)) | |
1691 | break; | |
1692 | ||
1693 | if (parser.in_star_range () || parser.in_thread_range ()) | |
1694 | parser.skip_range (); | |
1695 | } | |
1696 | } | |
1697 | catch (const gdb_exception_error &ex) | |
1698 | { | |
1699 | /* get_tid_range throws if it parses a negative number, for | |
1700 | example. But a seemingly negative number may be the start of | |
1701 | an option instead. */ | |
1702 | } | |
1703 | ||
1704 | const char *cmd = parser.cur_tok (); | |
1705 | ||
1706 | if (cmd == text) | |
1707 | { | |
1708 | /* No thread ID list yet. */ | |
1709 | return; | |
1710 | } | |
1711 | ||
1712 | /* Check if we're past a valid thread ID list already. */ | |
1713 | if (parser.finished () | |
1714 | && cmd > text && !isspace (cmd[-1])) | |
1715 | return; | |
1716 | ||
1717 | /* We're past the thread ID list, advance word point. */ | |
1718 | tracker.advance_custom_word_point_by (cmd - text); | |
1719 | text = cmd; | |
1720 | ||
1721 | const auto group = make_thread_apply_options_def_group (nullptr); | |
1722 | if (gdb::option::complete_options | |
1723 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
1724 | return; | |
1725 | ||
1726 | complete_nested_command_line (tracker, text); | |
1727 | } | |
1728 | ||
1729 | /* Completer for "thread apply all". */ | |
1730 | ||
1731 | static void | |
1732 | thread_apply_all_command_completer (cmd_list_element *ignore, | |
1733 | completion_tracker &tracker, | |
1734 | const char *text, const char *word) | |
1735 | { | |
1736 | const auto group = make_thread_apply_all_options_def_group (nullptr, | |
1737 | nullptr); | |
1738 | if (gdb::option::complete_options | |
1739 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
1740 | return; | |
1741 | ||
1742 | complete_nested_command_line (tracker, text); | |
1743 | } | |
1744 | ||
43792cf0 PA |
1745 | /* Implementation of the "thread apply" command. */ |
1746 | ||
c906108c | 1747 | static void |
981a3fb3 | 1748 | thread_apply_command (const char *tidlist, int from_tty) |
c906108c | 1749 | { |
1fe75df7 | 1750 | qcs_flags flags; |
95a6b0a1 | 1751 | const char *cmd = NULL; |
bfd28288 | 1752 | tid_range_parser parser; |
c906108c SS |
1753 | |
1754 | if (tidlist == NULL || *tidlist == '\000') | |
8a3fe4f8 | 1755 | error (_("Please specify a thread ID list")); |
c906108c | 1756 | |
bfd28288 PA |
1757 | parser.init (tidlist, current_inferior ()->num); |
1758 | while (!parser.finished ()) | |
3f5b7598 PA |
1759 | { |
1760 | int inf_num, thr_start, thr_end; | |
c906108c | 1761 | |
bfd28288 | 1762 | if (!parser.get_tid_range (&inf_num, &thr_start, &thr_end)) |
b9a3f842 | 1763 | break; |
3f5b7598 PA |
1764 | } |
1765 | ||
b9a3f842 PA |
1766 | cmd = parser.cur_tok (); |
1767 | ||
6665660a PA |
1768 | auto group = make_thread_apply_options_def_group (&flags); |
1769 | gdb::option::process_options | |
1770 | (&cmd, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group); | |
1771 | ||
1772 | validate_flags_qcs ("thread apply", &flags); | |
1fe75df7 | 1773 | |
b9a3f842 | 1774 | if (*cmd == '\0') |
8a3fe4f8 | 1775 | error (_("Please specify a command following the thread ID list")); |
c906108c | 1776 | |
f7e13587 | 1777 | if (tidlist == cmd || isdigit (cmd[0])) |
3f5b7598 PA |
1778 | invalid_thread_id_error (cmd); |
1779 | ||
5ed8105e | 1780 | scoped_restore_current_thread restore_thread; |
c906108c | 1781 | |
bfd28288 | 1782 | parser.init (tidlist, current_inferior ()->num); |
b9a3f842 | 1783 | while (!parser.finished ()) |
5d5658a1 PA |
1784 | { |
1785 | struct thread_info *tp = NULL; | |
1786 | struct inferior *inf; | |
1787 | int inf_num, thr_num; | |
65fc9b77 | 1788 | |
bfd28288 | 1789 | parser.get_tid (&inf_num, &thr_num); |
5d5658a1 PA |
1790 | inf = find_inferior_id (inf_num); |
1791 | if (inf != NULL) | |
1792 | tp = find_thread_id (inf, thr_num); | |
71ef29a8 | 1793 | |
bfd28288 | 1794 | if (parser.in_star_range ()) |
71ef29a8 PA |
1795 | { |
1796 | if (inf == NULL) | |
1797 | { | |
1798 | warning (_("Unknown inferior %d"), inf_num); | |
bfd28288 | 1799 | parser.skip_range (); |
71ef29a8 PA |
1800 | continue; |
1801 | } | |
1802 | ||
1803 | /* No use looking for threads past the highest thread number | |
1804 | the inferior ever had. */ | |
1805 | if (thr_num >= inf->highest_thread_num) | |
bfd28288 | 1806 | parser.skip_range (); |
71ef29a8 PA |
1807 | |
1808 | /* Be quiet about unknown threads numbers. */ | |
1809 | if (tp == NULL) | |
1810 | continue; | |
1811 | } | |
1812 | ||
5d5658a1 PA |
1813 | if (tp == NULL) |
1814 | { | |
bfd28288 | 1815 | if (show_inferior_qualified_tids () || parser.tid_is_qualified ()) |
5d5658a1 PA |
1816 | warning (_("Unknown thread %d.%d"), inf_num, thr_num); |
1817 | else | |
1818 | warning (_("Unknown thread %d"), thr_num); | |
1819 | continue; | |
1820 | } | |
c906108c | 1821 | |
5d5658a1 | 1822 | if (!thread_alive (tp)) |
65ebfb52 | 1823 | { |
5d5658a1 PA |
1824 | warning (_("Thread %s has terminated."), print_thread_id (tp)); |
1825 | continue; | |
1826 | } | |
4f8d22e3 | 1827 | |
1fe75df7 | 1828 | thr_try_catch_cmd (tp, cmd, from_tty, flags); |
c906108c SS |
1829 | } |
1830 | } | |
1831 | ||
1fe75df7 PW |
1832 | |
1833 | /* Implementation of the "taas" command. */ | |
1834 | ||
1835 | static void | |
1836 | taas_command (const char *cmd, int from_tty) | |
1837 | { | |
e0fad1ea PW |
1838 | if (cmd == NULL || *cmd == '\0') |
1839 | error (_("Please specify a command to apply on all threads")); | |
1fe75df7 PW |
1840 | std::string expanded = std::string ("thread apply all -s ") + cmd; |
1841 | execute_command (expanded.c_str (), from_tty); | |
1842 | } | |
1843 | ||
1844 | /* Implementation of the "tfaas" command. */ | |
1845 | ||
1846 | static void | |
1847 | tfaas_command (const char *cmd, int from_tty) | |
1848 | { | |
e0fad1ea PW |
1849 | if (cmd == NULL || *cmd == '\0') |
1850 | error (_("Please specify a command to apply on all frames of all threads")); | |
1fe75df7 | 1851 | std::string expanded |
5d707134 | 1852 | = std::string ("thread apply all -s -- frame apply all -s ") + cmd; |
1fe75df7 PW |
1853 | execute_command (expanded.c_str (), from_tty); |
1854 | } | |
1855 | ||
224608c3 | 1856 | /* Switch to the specified thread, or print the current thread. */ |
c906108c | 1857 | |
f0e8c4c5 | 1858 | void |
981a3fb3 | 1859 | thread_command (const char *tidstr, int from_tty) |
c906108c | 1860 | { |
4034d0ff | 1861 | if (tidstr == NULL) |
c906108c | 1862 | { |
9295a5a9 | 1863 | if (inferior_ptid == null_ptid) |
d729566a PA |
1864 | error (_("No thread selected")); |
1865 | ||
c906108c | 1866 | if (target_has_stack) |
4f8d22e3 | 1867 | { |
43792cf0 PA |
1868 | struct thread_info *tp = inferior_thread (); |
1869 | ||
00431a78 | 1870 | if (tp->state == THREAD_EXITED) |
43792cf0 PA |
1871 | printf_filtered (_("[Current thread is %s (%s) (exited)]\n"), |
1872 | print_thread_id (tp), | |
a068643d | 1873 | target_pid_to_str (inferior_ptid).c_str ()); |
4f8d22e3 | 1874 | else |
43792cf0 PA |
1875 | printf_filtered (_("[Current thread is %s (%s)]\n"), |
1876 | print_thread_id (tp), | |
a068643d | 1877 | target_pid_to_str (inferior_ptid).c_str ()); |
4f8d22e3 | 1878 | } |
c906108c | 1879 | else |
8a3fe4f8 | 1880 | error (_("No stack.")); |
c906108c | 1881 | } |
4034d0ff AT |
1882 | else |
1883 | { | |
1884 | ptid_t previous_ptid = inferior_ptid; | |
4034d0ff | 1885 | |
65630365 | 1886 | thread_select (tidstr, parse_thread_id (tidstr, NULL)); |
c5394b80 | 1887 | |
ae0eee42 PA |
1888 | /* Print if the thread has not changed, otherwise an event will |
1889 | be sent. */ | |
9295a5a9 | 1890 | if (inferior_ptid == previous_ptid) |
4034d0ff AT |
1891 | { |
1892 | print_selected_thread_frame (current_uiout, | |
1893 | USER_SELECTED_THREAD | |
1894 | | USER_SELECTED_FRAME); | |
1895 | } | |
1896 | else | |
1897 | { | |
76727919 TT |
1898 | gdb::observers::user_selected_context_changed.notify |
1899 | (USER_SELECTED_THREAD | USER_SELECTED_FRAME); | |
4034d0ff AT |
1900 | } |
1901 | } | |
c5394b80 JM |
1902 | } |
1903 | ||
4694da01 TT |
1904 | /* Implementation of `thread name'. */ |
1905 | ||
1906 | static void | |
fc41a75b | 1907 | thread_name_command (const char *arg, int from_tty) |
4694da01 TT |
1908 | { |
1909 | struct thread_info *info; | |
1910 | ||
9295a5a9 | 1911 | if (inferior_ptid == null_ptid) |
4694da01 TT |
1912 | error (_("No thread selected")); |
1913 | ||
529480d0 | 1914 | arg = skip_spaces (arg); |
4694da01 TT |
1915 | |
1916 | info = inferior_thread (); | |
1917 | xfree (info->name); | |
1918 | info->name = arg ? xstrdup (arg) : NULL; | |
1919 | } | |
1920 | ||
60f98dde MS |
1921 | /* Find thread ids with a name, target pid, or extra info matching ARG. */ |
1922 | ||
1923 | static void | |
fc41a75b | 1924 | thread_find_command (const char *arg, int from_tty) |
60f98dde | 1925 | { |
73ede765 | 1926 | const char *tmp; |
60f98dde MS |
1927 | unsigned long match = 0; |
1928 | ||
1929 | if (arg == NULL || *arg == '\0') | |
1930 | error (_("Command requires an argument.")); | |
1931 | ||
1932 | tmp = re_comp (arg); | |
1933 | if (tmp != 0) | |
1934 | error (_("Invalid regexp (%s): %s"), tmp, arg); | |
1935 | ||
1936 | update_thread_list (); | |
08036331 | 1937 | for (thread_info *tp : all_threads ()) |
60f98dde MS |
1938 | { |
1939 | if (tp->name != NULL && re_exec (tp->name)) | |
1940 | { | |
43792cf0 PA |
1941 | printf_filtered (_("Thread %s has name '%s'\n"), |
1942 | print_thread_id (tp), tp->name); | |
60f98dde MS |
1943 | match++; |
1944 | } | |
1945 | ||
1946 | tmp = target_thread_name (tp); | |
1947 | if (tmp != NULL && re_exec (tmp)) | |
1948 | { | |
43792cf0 PA |
1949 | printf_filtered (_("Thread %s has target name '%s'\n"), |
1950 | print_thread_id (tp), tmp); | |
60f98dde MS |
1951 | match++; |
1952 | } | |
1953 | ||
a068643d TT |
1954 | std::string name = target_pid_to_str (tp->ptid); |
1955 | if (!name.empty () && re_exec (name.c_str ())) | |
60f98dde | 1956 | { |
43792cf0 | 1957 | printf_filtered (_("Thread %s has target id '%s'\n"), |
a068643d | 1958 | print_thread_id (tp), name.c_str ()); |
60f98dde MS |
1959 | match++; |
1960 | } | |
1961 | ||
1962 | tmp = target_extra_thread_info (tp); | |
1963 | if (tmp != NULL && re_exec (tmp)) | |
1964 | { | |
43792cf0 PA |
1965 | printf_filtered (_("Thread %s has extra info '%s'\n"), |
1966 | print_thread_id (tp), tmp); | |
60f98dde MS |
1967 | match++; |
1968 | } | |
1969 | } | |
1970 | if (!match) | |
1971 | printf_filtered (_("No threads match '%s'\n"), arg); | |
1972 | } | |
1973 | ||
93815fbf | 1974 | /* Print notices when new threads are attached and detached. */ |
491144b5 | 1975 | bool print_thread_events = true; |
93815fbf VP |
1976 | static void |
1977 | show_print_thread_events (struct ui_file *file, int from_tty, | |
ae0eee42 | 1978 | struct cmd_list_element *c, const char *value) |
93815fbf | 1979 | { |
3e43a32a MS |
1980 | fprintf_filtered (file, |
1981 | _("Printing of thread events is %s.\n"), | |
ae0eee42 | 1982 | value); |
93815fbf VP |
1983 | } |
1984 | ||
65630365 | 1985 | /* See gdbthread.h. */ |
c906108c | 1986 | |
65630365 PA |
1987 | void |
1988 | thread_select (const char *tidstr, thread_info *tp) | |
1989 | { | |
c906108c | 1990 | if (!thread_alive (tp)) |
5d5658a1 | 1991 | error (_("Thread ID %s has terminated."), tidstr); |
c906108c | 1992 | |
00431a78 | 1993 | switch_to_thread (tp); |
c906108c | 1994 | |
db5a7484 NR |
1995 | annotate_thread_changed (); |
1996 | ||
4034d0ff AT |
1997 | /* Since the current thread may have changed, see if there is any |
1998 | exited thread we can now delete. */ | |
1999 | prune_threads (); | |
4034d0ff AT |
2000 | } |
2001 | ||
2002 | /* Print thread and frame switch command response. */ | |
2003 | ||
2004 | void | |
2005 | print_selected_thread_frame (struct ui_out *uiout, | |
2006 | user_selected_what selection) | |
2007 | { | |
2008 | struct thread_info *tp = inferior_thread (); | |
4034d0ff AT |
2009 | |
2010 | if (selection & USER_SELECTED_THREAD) | |
5d5658a1 | 2011 | { |
112e8700 | 2012 | if (uiout->is_mi_like_p ()) |
4034d0ff | 2013 | { |
381befee TT |
2014 | uiout->field_signed ("new-thread-id", |
2015 | inferior_thread ()->global_num); | |
4034d0ff AT |
2016 | } |
2017 | else | |
2018 | { | |
112e8700 SM |
2019 | uiout->text ("[Switching to thread "); |
2020 | uiout->field_string ("new-thread-id", print_thread_id (tp)); | |
2021 | uiout->text (" ("); | |
a068643d | 2022 | uiout->text (target_pid_to_str (inferior_ptid).c_str ()); |
112e8700 | 2023 | uiout->text (")]"); |
4034d0ff | 2024 | } |
5d5658a1 | 2025 | } |
c5394b80 | 2026 | |
30596231 | 2027 | if (tp->state == THREAD_RUNNING) |
98871305 | 2028 | { |
4034d0ff | 2029 | if (selection & USER_SELECTED_THREAD) |
112e8700 | 2030 | uiout->text ("(running)\n"); |
98871305 | 2031 | } |
4034d0ff AT |
2032 | else if (selection & USER_SELECTED_FRAME) |
2033 | { | |
2034 | if (selection & USER_SELECTED_THREAD) | |
112e8700 | 2035 | uiout->text ("\n"); |
4f8d22e3 | 2036 | |
4034d0ff AT |
2037 | if (has_stack_frames ()) |
2038 | print_stack_frame_to_uiout (uiout, get_selected_frame (NULL), | |
2039 | 1, SRC_AND_LOC, 1); | |
2040 | } | |
c5394b80 JM |
2041 | } |
2042 | ||
b57bacec PA |
2043 | /* Update the 'threads_executing' global based on the threads we know |
2044 | about right now. */ | |
2045 | ||
2046 | static void | |
2047 | update_threads_executing (void) | |
2048 | { | |
b57bacec | 2049 | threads_executing = 0; |
08036331 | 2050 | for (thread_info *tp : all_non_exited_threads ()) |
b57bacec PA |
2051 | { |
2052 | if (tp->executing) | |
2053 | { | |
2054 | threads_executing = 1; | |
2055 | break; | |
2056 | } | |
2057 | } | |
2058 | } | |
2059 | ||
dc146f7c VP |
2060 | void |
2061 | update_thread_list (void) | |
2062 | { | |
e8032dde | 2063 | target_update_thread_list (); |
b57bacec | 2064 | update_threads_executing (); |
dc146f7c VP |
2065 | } |
2066 | ||
663f6d42 PA |
2067 | /* Return a new value for the selected thread's id. Return a value of |
2068 | 0 if no thread is selected. If GLOBAL is true, return the thread's | |
2069 | global number. Otherwise return the per-inferior number. */ | |
2070 | ||
2071 | static struct value * | |
2072 | thread_num_make_value_helper (struct gdbarch *gdbarch, int global) | |
2073 | { | |
663f6d42 PA |
2074 | int int_val; |
2075 | ||
00431a78 | 2076 | if (inferior_ptid == null_ptid) |
663f6d42 | 2077 | int_val = 0; |
663f6d42 | 2078 | else |
00431a78 PA |
2079 | { |
2080 | thread_info *tp = inferior_thread (); | |
2081 | if (global) | |
2082 | int_val = tp->global_num; | |
2083 | else | |
2084 | int_val = tp->per_inf_num; | |
2085 | } | |
663f6d42 PA |
2086 | |
2087 | return value_from_longest (builtin_type (gdbarch)->builtin_int, int_val); | |
2088 | } | |
2089 | ||
5d5658a1 PA |
2090 | /* Return a new value for the selected thread's per-inferior thread |
2091 | number. Return a value of 0 if no thread is selected, or no | |
2092 | threads exist. */ | |
6aed2dbc SS |
2093 | |
2094 | static struct value * | |
ae0eee42 PA |
2095 | thread_id_per_inf_num_make_value (struct gdbarch *gdbarch, |
2096 | struct internalvar *var, | |
663f6d42 | 2097 | void *ignore) |
6aed2dbc | 2098 | { |
663f6d42 PA |
2099 | return thread_num_make_value_helper (gdbarch, 0); |
2100 | } | |
2101 | ||
2102 | /* Return a new value for the selected thread's global id. Return a | |
2103 | value of 0 if no thread is selected, or no threads exist. */ | |
6aed2dbc | 2104 | |
663f6d42 PA |
2105 | static struct value * |
2106 | global_thread_id_make_value (struct gdbarch *gdbarch, struct internalvar *var, | |
2107 | void *ignore) | |
2108 | { | |
2109 | return thread_num_make_value_helper (gdbarch, 1); | |
6aed2dbc SS |
2110 | } |
2111 | ||
c906108c SS |
2112 | /* Commands with a prefix of `thread'. */ |
2113 | struct cmd_list_element *thread_cmd_list = NULL; | |
2114 | ||
22d2b532 SDJ |
2115 | /* Implementation of `thread' variable. */ |
2116 | ||
2117 | static const struct internalvar_funcs thread_funcs = | |
2118 | { | |
663f6d42 PA |
2119 | thread_id_per_inf_num_make_value, |
2120 | NULL, | |
2121 | NULL | |
2122 | }; | |
2123 | ||
2124 | /* Implementation of `gthread' variable. */ | |
2125 | ||
2126 | static const struct internalvar_funcs gthread_funcs = | |
2127 | { | |
2128 | global_thread_id_make_value, | |
22d2b532 SDJ |
2129 | NULL, |
2130 | NULL | |
2131 | }; | |
2132 | ||
c906108c | 2133 | void |
fba45db2 | 2134 | _initialize_thread (void) |
c906108c SS |
2135 | { |
2136 | static struct cmd_list_element *thread_apply_list = NULL; | |
5d707134 | 2137 | cmd_list_element *c; |
c906108c | 2138 | |
54d66006 PA |
2139 | const auto info_threads_opts = make_info_threads_options_def_group (nullptr); |
2140 | ||
2141 | /* Note: keep this "ID" in sync with what "info threads [TAB]" | |
2142 | suggests. */ | |
2143 | static std::string info_threads_help | |
2144 | = gdb::option::build_help (_("\ | |
2145 | Display currently known threads.\n\ | |
2146 | Usage: info threads [OPTION]... [ID]...\n\ | |
2147 | \n\ | |
2148 | Options:\n\ | |
2149 | %OPTIONS%\ | |
5d5658a1 | 2150 | If ID is given, it is a space-separated list of IDs of threads to display.\n\ |
54d66006 PA |
2151 | Otherwise, all threads are displayed."), |
2152 | info_threads_opts); | |
2153 | ||
2154 | c = add_info ("threads", info_threads_command, info_threads_help.c_str ()); | |
2155 | set_cmd_completer_handle_brkchars (c, info_threads_command_completer); | |
c906108c | 2156 | |
d729566a | 2157 | add_prefix_cmd ("thread", class_run, thread_command, _("\ |
1bedd215 AC |
2158 | Use this command to switch between threads.\n\ |
2159 | The new thread ID must be currently known."), | |
d729566a | 2160 | &thread_cmd_list, "thread ", 1, &cmdlist); |
c906108c | 2161 | |
6665660a | 2162 | #define THREAD_APPLY_OPTION_HELP "\ |
1fe75df7 PW |
2163 | Prints per-inferior thread number and target system's thread id\n\ |
2164 | followed by COMMAND output.\n\ | |
6665660a PA |
2165 | \n\ |
2166 | By default, an error raised during the execution of COMMAND\n\ | |
2167 | aborts \"thread apply\".\n\ | |
2168 | \n\ | |
2169 | Options:\n\ | |
2170 | %OPTIONS%" | |
2171 | ||
2172 | const auto thread_apply_opts = make_thread_apply_options_def_group (nullptr); | |
2173 | ||
8abfcabc | 2174 | static std::string thread_apply_help = gdb::option::build_help (_("\ |
6665660a PA |
2175 | Apply a command to a list of threads.\n\ |
2176 | Usage: thread apply ID... [OPTION]... COMMAND\n\ | |
1fe75df7 | 2177 | ID is a space-separated list of IDs of threads to apply COMMAND on.\n" |
6665660a PA |
2178 | THREAD_APPLY_OPTION_HELP), |
2179 | thread_apply_opts); | |
2180 | ||
2181 | c = add_prefix_cmd ("apply", class_run, thread_apply_command, | |
2182 | thread_apply_help.c_str (), | |
2183 | &thread_apply_list, "thread apply ", 1, | |
2184 | &thread_cmd_list); | |
2185 | set_cmd_completer_handle_brkchars (c, thread_apply_command_completer); | |
c906108c | 2186 | |
6665660a PA |
2187 | const auto thread_apply_all_opts |
2188 | = make_thread_apply_all_options_def_group (nullptr, nullptr); | |
2189 | ||
8abfcabc | 2190 | static std::string thread_apply_all_help = gdb::option::build_help (_("\ |
253828f1 JK |
2191 | Apply a command to all threads.\n\ |
2192 | \n\ | |
6665660a PA |
2193 | Usage: thread apply all [OPTION]... COMMAND\n" |
2194 | THREAD_APPLY_OPTION_HELP), | |
2195 | thread_apply_all_opts); | |
2196 | ||
2197 | c = add_cmd ("all", class_run, thread_apply_all_command, | |
2198 | thread_apply_all_help.c_str (), | |
2199 | &thread_apply_list); | |
2200 | set_cmd_completer_handle_brkchars (c, thread_apply_all_command_completer); | |
c906108c | 2201 | |
6665660a | 2202 | c = add_com ("taas", class_run, taas_command, _("\ |
1fe75df7 | 2203 | Apply a command to all threads (ignoring errors and empty output).\n\ |
6665660a PA |
2204 | Usage: taas [OPTION]... COMMAND\n\ |
2205 | shortcut for 'thread apply all -s [OPTION]... COMMAND'\n\ | |
2206 | See \"help thread apply all\" for available options.")); | |
2207 | set_cmd_completer_handle_brkchars (c, thread_apply_all_command_completer); | |
1fe75df7 | 2208 | |
5d707134 | 2209 | c = add_com ("tfaas", class_run, tfaas_command, _("\ |
1fe75df7 | 2210 | Apply a command to all frames of all threads (ignoring errors and empty output).\n\ |
5d707134 PA |
2211 | Usage: tfaas [OPTION]... COMMAND\n\ |
2212 | shortcut for 'thread apply all -s -- frame apply all -s [OPTION]... COMMAND'\n\ | |
2213 | See \"help frame apply all\" for available options.")); | |
2214 | set_cmd_completer_handle_brkchars (c, frame_apply_all_cmd_completer); | |
1fe75df7 | 2215 | |
4694da01 TT |
2216 | add_cmd ("name", class_run, thread_name_command, |
2217 | _("Set the current thread's name.\n\ | |
2218 | Usage: thread name [NAME]\n\ | |
2219 | If NAME is not given, then any existing name is removed."), &thread_cmd_list); | |
2220 | ||
60f98dde MS |
2221 | add_cmd ("find", class_run, thread_find_command, _("\ |
2222 | Find threads that match a regular expression.\n\ | |
2223 | Usage: thread find REGEXP\n\ | |
2224 | Will display thread ids whose name, target ID, or extra info matches REGEXP."), | |
2225 | &thread_cmd_list); | |
2226 | ||
4f45d445 | 2227 | add_com_alias ("t", "thread", class_run, 1); |
93815fbf VP |
2228 | |
2229 | add_setshow_boolean_cmd ("thread-events", no_class, | |
ae0eee42 | 2230 | &print_thread_events, _("\ |
11c68c47 EZ |
2231 | Set printing of thread events (such as thread start and exit)."), _("\ |
2232 | Show printing of thread events (such as thread start and exit)."), NULL, | |
ae0eee42 PA |
2233 | NULL, |
2234 | show_print_thread_events, | |
2235 | &setprintlist, &showprintlist); | |
6aed2dbc | 2236 | |
22d2b532 | 2237 | create_internalvar_type_lazy ("_thread", &thread_funcs, NULL); |
663f6d42 | 2238 | create_internalvar_type_lazy ("_gthread", >hread_funcs, NULL); |
c906108c | 2239 | } |