Commit | Line | Data |
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c906108c | 1 | /* Multi-process/thread control for GDB, the GNU debugger. |
8926118c | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 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" | |
26 | #include "environ.h" | |
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" |
5b7f31a4 | 33 | #include "gdb.h" |
02d27625 | 34 | #include "btrace.h" |
c906108c SS |
35 | |
36 | #include <ctype.h> | |
37 | #include <sys/types.h> | |
38 | #include <signal.h> | |
8b93c638 | 39 | #include "ui-out.h" |
683f2885 | 40 | #include "observer.h" |
d4fc5b1e | 41 | #include "annotate.h" |
94cc34af | 42 | #include "cli/cli-decode.h" |
60f98dde | 43 | #include "gdb_regex.h" |
aea5b279 | 44 | #include "cli/cli-utils.h" |
be34f849 | 45 | #include "continuations.h" |
94cc34af | 46 | |
c378eb4e | 47 | /* Definition of struct thread_info exported to gdbthread.h. */ |
c906108c | 48 | |
c378eb4e | 49 | /* Prototypes for exported functions. */ |
c906108c | 50 | |
a14ed312 | 51 | void _initialize_thread (void); |
c906108c | 52 | |
c378eb4e | 53 | /* Prototypes for local functions. */ |
c906108c | 54 | |
e5ef252a | 55 | struct thread_info *thread_list = NULL; |
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 KB |
65 | static void thread_command (char *tidstr, int from_tty); |
66 | static void thread_apply_all_command (char *, int); | |
67 | static int thread_alive (struct thread_info *); | |
68 | static void info_threads_command (char *, int); | |
69 | static void thread_apply_command (char *, int); | |
39f77062 | 70 | static void restore_current_thread (ptid_t); |
a14ed312 | 71 | static void prune_threads (void); |
c906108c | 72 | |
054e8d9e AA |
73 | /* Data to cleanup thread array. */ |
74 | ||
75 | struct thread_array_cleanup | |
76 | { | |
77 | /* Array of thread pointers used to set | |
78 | reference count. */ | |
79 | struct thread_info **tp_array; | |
80 | ||
81 | /* Thread count in the array. */ | |
82 | int count; | |
83 | }; | |
84 | ||
85 | ||
a5321aa4 | 86 | struct thread_info* |
4e1c45ea | 87 | inferior_thread (void) |
8601f500 | 88 | { |
e09875d4 | 89 | struct thread_info *tp = find_thread_ptid (inferior_ptid); |
4e1c45ea PA |
90 | gdb_assert (tp); |
91 | return tp; | |
92 | } | |
8601f500 | 93 | |
4e1c45ea PA |
94 | void |
95 | delete_step_resume_breakpoint (struct thread_info *tp) | |
96 | { | |
8358c15c | 97 | if (tp && tp->control.step_resume_breakpoint) |
8601f500 | 98 | { |
8358c15c JK |
99 | delete_breakpoint (tp->control.step_resume_breakpoint); |
100 | tp->control.step_resume_breakpoint = NULL; | |
8601f500 MS |
101 | } |
102 | } | |
103 | ||
186c406b TT |
104 | void |
105 | delete_exception_resume_breakpoint (struct thread_info *tp) | |
106 | { | |
107 | if (tp && tp->control.exception_resume_breakpoint) | |
108 | { | |
109 | delete_breakpoint (tp->control.exception_resume_breakpoint); | |
110 | tp->control.exception_resume_breakpoint = NULL; | |
111 | } | |
112 | } | |
113 | ||
7c952b6d | 114 | static void |
4f8d22e3 | 115 | clear_thread_inferior_resources (struct thread_info *tp) |
7c952b6d ND |
116 | { |
117 | /* NOTE: this will take care of any left-over step_resume breakpoints, | |
4d8453a5 DJ |
118 | but not any user-specified thread-specific breakpoints. We can not |
119 | delete the breakpoint straight-off, because the inferior might not | |
120 | be stopped at the moment. */ | |
8358c15c | 121 | if (tp->control.step_resume_breakpoint) |
4f8d22e3 | 122 | { |
8358c15c JK |
123 | tp->control.step_resume_breakpoint->disposition = disp_del_at_next_stop; |
124 | tp->control.step_resume_breakpoint = NULL; | |
4f8d22e3 | 125 | } |
7c952b6d | 126 | |
186c406b TT |
127 | if (tp->control.exception_resume_breakpoint) |
128 | { | |
129 | tp->control.exception_resume_breakpoint->disposition | |
130 | = disp_del_at_next_stop; | |
131 | tp->control.exception_resume_breakpoint = NULL; | |
132 | } | |
133 | ||
f59f708a PA |
134 | delete_longjmp_breakpoint_at_next_stop (tp->num); |
135 | ||
16c381f0 | 136 | bpstat_clear (&tp->control.stop_bpstat); |
95e54da7 | 137 | |
02d27625 MM |
138 | btrace_teardown (tp); |
139 | ||
fa4cd53f PA |
140 | do_all_intermediate_continuations_thread (tp, 1); |
141 | do_all_continuations_thread (tp, 1); | |
4f8d22e3 PA |
142 | } |
143 | ||
144 | static void | |
145 | free_thread (struct thread_info *tp) | |
146 | { | |
7c952b6d | 147 | if (tp->private) |
dc146f7c VP |
148 | { |
149 | if (tp->private_dtor) | |
150 | tp->private_dtor (tp->private); | |
151 | else | |
152 | xfree (tp->private); | |
153 | } | |
7c952b6d | 154 | |
4694da01 | 155 | xfree (tp->name); |
b8c9b27d | 156 | xfree (tp); |
7c952b6d ND |
157 | } |
158 | ||
c906108c | 159 | void |
fba45db2 | 160 | init_thread_list (void) |
c906108c SS |
161 | { |
162 | struct thread_info *tp, *tpnext; | |
163 | ||
7c952b6d | 164 | highest_thread_num = 0; |
8ea051c5 | 165 | |
c906108c SS |
166 | if (!thread_list) |
167 | return; | |
168 | ||
169 | for (tp = thread_list; tp; tp = tpnext) | |
170 | { | |
171 | tpnext = tp->next; | |
7c952b6d | 172 | free_thread (tp); |
c906108c SS |
173 | } |
174 | ||
175 | thread_list = NULL; | |
b57bacec | 176 | threads_executing = 0; |
c906108c SS |
177 | } |
178 | ||
e58b0e63 PA |
179 | /* Allocate a new thread with target id PTID and add it to the thread |
180 | list. */ | |
181 | ||
182 | static struct thread_info * | |
183 | new_thread (ptid_t ptid) | |
184 | { | |
185 | struct thread_info *tp; | |
186 | ||
187 | tp = xcalloc (1, sizeof (*tp)); | |
188 | ||
189 | tp->ptid = ptid; | |
190 | tp->num = ++highest_thread_num; | |
191 | tp->next = thread_list; | |
192 | thread_list = tp; | |
193 | ||
194 | /* Nothing to follow yet. */ | |
195 | tp->pending_follow.kind = TARGET_WAITKIND_SPURIOUS; | |
30596231 | 196 | tp->state = THREAD_STOPPED; |
e58b0e63 PA |
197 | |
198 | return tp; | |
199 | } | |
200 | ||
0d06e24b | 201 | struct thread_info * |
93815fbf | 202 | add_thread_silent (ptid_t ptid) |
c906108c SS |
203 | { |
204 | struct thread_info *tp; | |
205 | ||
e09875d4 | 206 | tp = find_thread_ptid (ptid); |
4f8d22e3 PA |
207 | if (tp) |
208 | /* Found an old thread with the same id. It has to be dead, | |
209 | otherwise we wouldn't be adding a new thread with the same id. | |
210 | The OS is reusing this id --- delete it, and recreate a new | |
211 | one. */ | |
212 | { | |
213 | /* In addition to deleting the thread, if this is the current | |
dcf4fbde PA |
214 | thread, then we need to take care that delete_thread doesn't |
215 | really delete the thread if it is inferior_ptid. Create a | |
216 | new template thread in the list with an invalid ptid, switch | |
217 | to it, delete the original thread, reset the new thread's | |
218 | ptid, and switch to it. */ | |
4f8d22e3 PA |
219 | |
220 | if (ptid_equal (inferior_ptid, ptid)) | |
221 | { | |
c820c52a | 222 | tp = new_thread (null_ptid); |
dcf4fbde PA |
223 | |
224 | /* Make switch_to_thread not read from the thread. */ | |
30596231 | 225 | tp->state = THREAD_EXITED; |
c820c52a | 226 | switch_to_thread (null_ptid); |
4f8d22e3 PA |
227 | |
228 | /* Now we can delete it. */ | |
229 | delete_thread (ptid); | |
230 | ||
dcf4fbde | 231 | /* Now reset its ptid, and reswitch inferior_ptid to it. */ |
4f8d22e3 | 232 | tp->ptid = ptid; |
30596231 | 233 | tp->state = THREAD_STOPPED; |
4f8d22e3 PA |
234 | switch_to_thread (ptid); |
235 | ||
236 | observer_notify_new_thread (tp); | |
237 | ||
238 | /* All done. */ | |
239 | return tp; | |
240 | } | |
241 | else | |
242 | /* Just go ahead and delete it. */ | |
243 | delete_thread (ptid); | |
244 | } | |
245 | ||
e58b0e63 | 246 | tp = new_thread (ptid); |
cfc01461 VP |
247 | observer_notify_new_thread (tp); |
248 | ||
0d06e24b | 249 | return tp; |
c906108c SS |
250 | } |
251 | ||
93815fbf | 252 | struct thread_info * |
17faa917 | 253 | add_thread_with_info (ptid_t ptid, struct private_thread_info *private) |
93815fbf VP |
254 | { |
255 | struct thread_info *result = add_thread_silent (ptid); | |
256 | ||
17faa917 DJ |
257 | result->private = private; |
258 | ||
93815fbf | 259 | if (print_thread_events) |
fd532e2e | 260 | printf_unfiltered (_("[New %s]\n"), target_pid_to_str (ptid)); |
d4fc5b1e NR |
261 | |
262 | annotate_new_thread (); | |
93815fbf VP |
263 | return result; |
264 | } | |
265 | ||
17faa917 DJ |
266 | struct thread_info * |
267 | add_thread (ptid_t ptid) | |
268 | { | |
269 | return add_thread_with_info (ptid, NULL); | |
270 | } | |
271 | ||
5e0b29c1 PA |
272 | /* Delete thread PTID. If SILENT, don't notify the observer of this |
273 | exit. */ | |
274 | static void | |
275 | delete_thread_1 (ptid_t ptid, int silent) | |
c906108c SS |
276 | { |
277 | struct thread_info *tp, *tpprev; | |
278 | ||
279 | tpprev = NULL; | |
280 | ||
281 | for (tp = thread_list; tp; tpprev = tp, tp = tp->next) | |
39f77062 | 282 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
283 | break; |
284 | ||
285 | if (!tp) | |
286 | return; | |
287 | ||
4f8d22e3 PA |
288 | /* If this is the current thread, or there's code out there that |
289 | relies on it existing (refcount > 0) we can't delete yet. Mark | |
290 | it as exited, and notify it. */ | |
291 | if (tp->refcount > 0 | |
292 | || ptid_equal (tp->ptid, inferior_ptid)) | |
293 | { | |
30596231 | 294 | if (tp->state != THREAD_EXITED) |
4f8d22e3 | 295 | { |
a07daef3 | 296 | observer_notify_thread_exit (tp, silent); |
4f8d22e3 PA |
297 | |
298 | /* Tag it as exited. */ | |
30596231 | 299 | tp->state = THREAD_EXITED; |
4f8d22e3 PA |
300 | |
301 | /* Clear breakpoints, etc. associated with this thread. */ | |
302 | clear_thread_inferior_resources (tp); | |
303 | } | |
304 | ||
305 | /* Will be really deleted some other time. */ | |
306 | return; | |
307 | } | |
308 | ||
fa4cd53f | 309 | /* Notify thread exit, but only if we haven't already. */ |
30596231 | 310 | if (tp->state != THREAD_EXITED) |
fa4cd53f PA |
311 | observer_notify_thread_exit (tp, silent); |
312 | ||
313 | /* Tag it as exited. */ | |
30596231 | 314 | tp->state = THREAD_EXITED; |
fa4cd53f PA |
315 | clear_thread_inferior_resources (tp); |
316 | ||
c906108c SS |
317 | if (tpprev) |
318 | tpprev->next = tp->next; | |
319 | else | |
320 | thread_list = tp->next; | |
321 | ||
7c952b6d | 322 | free_thread (tp); |
c906108c SS |
323 | } |
324 | ||
4f8d22e3 PA |
325 | /* Delete thread PTID and notify of thread exit. If this is |
326 | inferior_ptid, don't actually delete it, but tag it as exited and | |
327 | do the notification. If PTID is the user selected thread, clear | |
328 | it. */ | |
5e0b29c1 PA |
329 | void |
330 | delete_thread (ptid_t ptid) | |
331 | { | |
332 | delete_thread_1 (ptid, 0 /* not silent */); | |
333 | } | |
334 | ||
335 | void | |
336 | delete_thread_silent (ptid_t ptid) | |
337 | { | |
338 | delete_thread_1 (ptid, 1 /* silent */); | |
339 | } | |
340 | ||
1e92afda | 341 | struct thread_info * |
fba45db2 | 342 | find_thread_id (int num) |
c906108c SS |
343 | { |
344 | struct thread_info *tp; | |
345 | ||
346 | for (tp = thread_list; tp; tp = tp->next) | |
347 | if (tp->num == num) | |
348 | return tp; | |
349 | ||
350 | return NULL; | |
351 | } | |
352 | ||
39f77062 | 353 | /* Find a thread_info by matching PTID. */ |
0d06e24b | 354 | struct thread_info * |
e09875d4 | 355 | find_thread_ptid (ptid_t ptid) |
0d06e24b JM |
356 | { |
357 | struct thread_info *tp; | |
358 | ||
359 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 360 | if (ptid_equal (tp->ptid, ptid)) |
0d06e24b JM |
361 | return tp; |
362 | ||
363 | return NULL; | |
364 | } | |
365 | ||
366 | /* | |
367 | * Thread iterator function. | |
368 | * | |
369 | * Calls a callback function once for each thread, so long as | |
370 | * the callback function returns false. If the callback function | |
371 | * returns true, the iteration will end and the current thread | |
372 | * will be returned. This can be useful for implementing a | |
373 | * search for a thread with arbitrary attributes, or for applying | |
374 | * some operation to every thread. | |
375 | * | |
376 | * FIXME: some of the existing functionality, such as | |
377 | * "Thread apply all", might be rewritten using this functionality. | |
378 | */ | |
379 | ||
380 | struct thread_info * | |
fd118b61 KB |
381 | iterate_over_threads (int (*callback) (struct thread_info *, void *), |
382 | void *data) | |
0d06e24b | 383 | { |
4f8d22e3 | 384 | struct thread_info *tp, *next; |
0d06e24b | 385 | |
4f8d22e3 PA |
386 | for (tp = thread_list; tp; tp = next) |
387 | { | |
388 | next = tp->next; | |
389 | if ((*callback) (tp, data)) | |
390 | return tp; | |
391 | } | |
0d06e24b JM |
392 | |
393 | return NULL; | |
394 | } | |
395 | ||
20874c92 VP |
396 | int |
397 | thread_count (void) | |
398 | { | |
399 | int result = 0; | |
400 | struct thread_info *tp; | |
401 | ||
402 | for (tp = thread_list; tp; tp = tp->next) | |
403 | ++result; | |
404 | ||
405 | return result; | |
406 | } | |
407 | ||
c906108c | 408 | int |
fba45db2 | 409 | valid_thread_id (int num) |
c906108c SS |
410 | { |
411 | struct thread_info *tp; | |
412 | ||
413 | for (tp = thread_list; tp; tp = tp->next) | |
414 | if (tp->num == num) | |
415 | return 1; | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | int | |
39f77062 | 421 | pid_to_thread_id (ptid_t ptid) |
c906108c SS |
422 | { |
423 | struct thread_info *tp; | |
424 | ||
425 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 426 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
427 | return tp->num; |
428 | ||
429 | return 0; | |
430 | } | |
431 | ||
39f77062 | 432 | ptid_t |
fba45db2 | 433 | thread_id_to_pid (int num) |
c906108c SS |
434 | { |
435 | struct thread_info *thread = find_thread_id (num); | |
5d502164 | 436 | |
c906108c | 437 | if (thread) |
39f77062 | 438 | return thread->ptid; |
c906108c | 439 | else |
39f77062 | 440 | return pid_to_ptid (-1); |
c906108c SS |
441 | } |
442 | ||
443 | int | |
39f77062 | 444 | in_thread_list (ptid_t ptid) |
c906108c SS |
445 | { |
446 | struct thread_info *tp; | |
447 | ||
448 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 449 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
450 | return 1; |
451 | ||
c378eb4e | 452 | return 0; /* Never heard of 'im. */ |
c906108c | 453 | } |
8926118c | 454 | |
bad34192 PA |
455 | /* Finds the first thread of the inferior given by PID. If PID is -1, |
456 | return the first thread in the list. */ | |
457 | ||
458 | struct thread_info * | |
459 | first_thread_of_process (int pid) | |
460 | { | |
461 | struct thread_info *tp, *ret = NULL; | |
462 | ||
463 | for (tp = thread_list; tp; tp = tp->next) | |
464 | if (pid == -1 || ptid_get_pid (tp->ptid) == pid) | |
465 | if (ret == NULL || tp->num < ret->num) | |
466 | ret = tp; | |
467 | ||
468 | return ret; | |
469 | } | |
470 | ||
2277426b PA |
471 | struct thread_info * |
472 | any_thread_of_process (int pid) | |
473 | { | |
474 | struct thread_info *tp; | |
475 | ||
32990ada PA |
476 | gdb_assert (pid != 0); |
477 | ||
478 | /* Prefer the current thread. */ | |
479 | if (ptid_get_pid (inferior_ptid) == pid) | |
480 | return inferior_thread (); | |
481 | ||
482 | ALL_NON_EXITED_THREADS (tp) | |
2277426b PA |
483 | if (ptid_get_pid (tp->ptid) == pid) |
484 | return tp; | |
485 | ||
486 | return NULL; | |
487 | } | |
488 | ||
6c95b8df PA |
489 | struct thread_info * |
490 | any_live_thread_of_process (int pid) | |
491 | { | |
32990ada | 492 | struct thread_info *curr_tp = NULL; |
6c95b8df | 493 | struct thread_info *tp; |
9941e0c5 | 494 | struct thread_info *tp_executing = NULL; |
6c95b8df | 495 | |
32990ada PA |
496 | gdb_assert (pid != 0); |
497 | ||
498 | /* Prefer the current thread if it's not executing. */ | |
499 | if (ptid_get_pid (inferior_ptid) == pid) | |
500 | { | |
501 | /* If the current thread is dead, forget it. If it's not | |
502 | executing, use it. Otherwise, still choose it (below), but | |
503 | only if no other non-executing thread is found. */ | |
504 | curr_tp = inferior_thread (); | |
505 | if (curr_tp->state == THREAD_EXITED) | |
506 | curr_tp = NULL; | |
507 | else if (!curr_tp->executing) | |
508 | return curr_tp; | |
509 | } | |
510 | ||
511 | ALL_NON_EXITED_THREADS (tp) | |
512 | if (ptid_get_pid (tp->ptid) == pid) | |
6c95b8df | 513 | { |
32990ada | 514 | if (!tp->executing) |
6c95b8df | 515 | return tp; |
32990ada PA |
516 | |
517 | tp_executing = tp; | |
6c95b8df PA |
518 | } |
519 | ||
32990ada PA |
520 | /* If both the current thread and all live threads are executing, |
521 | prefer the current thread. */ | |
522 | if (curr_tp != NULL) | |
523 | return curr_tp; | |
524 | ||
525 | /* Otherwise, just return an executing thread, if any. */ | |
9941e0c5 | 526 | return tp_executing; |
6c95b8df PA |
527 | } |
528 | ||
8b93c638 | 529 | /* Print a list of thread ids currently known, and the total number of |
c378eb4e | 530 | threads. To be used from within catch_errors. */ |
6949171e JJ |
531 | static int |
532 | do_captured_list_thread_ids (struct ui_out *uiout, void *arg) | |
8b93c638 JM |
533 | { |
534 | struct thread_info *tp; | |
535 | int num = 0; | |
3b31d625 | 536 | struct cleanup *cleanup_chain; |
592375cd | 537 | int current_thread = -1; |
8b93c638 | 538 | |
dc146f7c | 539 | update_thread_list (); |
7990a578 | 540 | |
3b31d625 | 541 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "thread-ids"); |
8b93c638 JM |
542 | |
543 | for (tp = thread_list; tp; tp = tp->next) | |
544 | { | |
30596231 | 545 | if (tp->state == THREAD_EXITED) |
4f8d22e3 | 546 | continue; |
592375cd VP |
547 | |
548 | if (ptid_equal (tp->ptid, inferior_ptid)) | |
549 | current_thread = tp->num; | |
550 | ||
8b93c638 JM |
551 | num++; |
552 | ui_out_field_int (uiout, "thread-id", tp->num); | |
553 | } | |
554 | ||
3b31d625 | 555 | do_cleanups (cleanup_chain); |
592375cd VP |
556 | |
557 | if (current_thread != -1) | |
558 | ui_out_field_int (uiout, "current-thread-id", current_thread); | |
8b93c638 JM |
559 | ui_out_field_int (uiout, "number-of-threads", num); |
560 | return GDB_RC_OK; | |
561 | } | |
562 | ||
563 | /* Official gdblib interface function to get a list of thread ids and | |
c378eb4e | 564 | the total number. */ |
8b93c638 | 565 | enum gdb_rc |
ce43223b | 566 | gdb_list_thread_ids (struct ui_out *uiout, char **error_message) |
8b93c638 | 567 | { |
b0b13bb4 DJ |
568 | if (catch_exceptions_with_msg (uiout, do_captured_list_thread_ids, NULL, |
569 | error_message, RETURN_MASK_ALL) < 0) | |
570 | return GDB_RC_FAIL; | |
571 | return GDB_RC_OK; | |
8b93c638 | 572 | } |
c906108c | 573 | |
c378eb4e | 574 | /* Return true if TP is an active thread. */ |
c906108c | 575 | static int |
fba45db2 | 576 | thread_alive (struct thread_info *tp) |
c906108c | 577 | { |
30596231 | 578 | if (tp->state == THREAD_EXITED) |
c906108c | 579 | return 0; |
39f77062 | 580 | if (!target_thread_alive (tp->ptid)) |
4f8d22e3 | 581 | return 0; |
c906108c SS |
582 | return 1; |
583 | } | |
584 | ||
585 | static void | |
fba45db2 | 586 | prune_threads (void) |
c906108c | 587 | { |
d4f3574e | 588 | struct thread_info *tp, *next; |
c906108c | 589 | |
c906108c SS |
590 | for (tp = thread_list; tp; tp = next) |
591 | { | |
592 | next = tp->next; | |
593 | if (!thread_alive (tp)) | |
39f77062 | 594 | delete_thread (tp->ptid); |
c906108c SS |
595 | } |
596 | } | |
597 | ||
5231c1fd PA |
598 | void |
599 | thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid) | |
600 | { | |
82f73884 PA |
601 | struct inferior *inf; |
602 | struct thread_info *tp; | |
603 | ||
604 | /* It can happen that what we knew as the target inferior id | |
605 | changes. E.g, target remote may only discover the remote process | |
606 | pid after adding the inferior to GDB's list. */ | |
607 | inf = find_inferior_pid (ptid_get_pid (old_ptid)); | |
608 | inf->pid = ptid_get_pid (new_ptid); | |
609 | ||
e09875d4 | 610 | tp = find_thread_ptid (old_ptid); |
5231c1fd PA |
611 | tp->ptid = new_ptid; |
612 | ||
613 | observer_notify_thread_ptid_changed (old_ptid, new_ptid); | |
614 | } | |
615 | ||
e1ac3328 VP |
616 | void |
617 | set_running (ptid_t ptid, int running) | |
618 | { | |
619 | struct thread_info *tp; | |
d90e17a7 | 620 | int all = ptid_equal (ptid, minus_one_ptid); |
e1ac3328 | 621 | |
e1ac3328 VP |
622 | /* We try not to notify the observer if no thread has actually changed |
623 | the running state -- merely to reduce the number of messages to | |
624 | frontend. Frontend is supposed to handle multiple *running just fine. */ | |
d90e17a7 | 625 | if (all || ptid_is_pid (ptid)) |
e1ac3328 VP |
626 | { |
627 | int any_started = 0; | |
5d502164 | 628 | |
e1ac3328 | 629 | for (tp = thread_list; tp; tp = tp->next) |
d90e17a7 PA |
630 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) |
631 | { | |
30596231 | 632 | if (tp->state == THREAD_EXITED) |
d90e17a7 | 633 | continue; |
30596231 | 634 | if (running && tp->state == THREAD_STOPPED) |
d90e17a7 | 635 | any_started = 1; |
30596231 | 636 | tp->state = running ? THREAD_RUNNING : THREAD_STOPPED; |
d90e17a7 | 637 | } |
c5a4d20b PA |
638 | if (any_started) |
639 | observer_notify_target_resumed (ptid); | |
e1ac3328 VP |
640 | } |
641 | else | |
642 | { | |
4f8d22e3 | 643 | int started = 0; |
5d502164 | 644 | |
e09875d4 | 645 | tp = find_thread_ptid (ptid); |
e1ac3328 | 646 | gdb_assert (tp); |
30596231 PA |
647 | gdb_assert (tp->state != THREAD_EXITED); |
648 | if (running && tp->state == THREAD_STOPPED) | |
4f8d22e3 | 649 | started = 1; |
30596231 | 650 | tp->state = running ? THREAD_RUNNING : THREAD_STOPPED; |
c5a4d20b | 651 | if (started) |
4f8d22e3 PA |
652 | observer_notify_target_resumed (ptid); |
653 | } | |
e1ac3328 VP |
654 | } |
655 | ||
4f8d22e3 PA |
656 | static int |
657 | is_thread_state (ptid_t ptid, enum thread_state state) | |
e1ac3328 VP |
658 | { |
659 | struct thread_info *tp; | |
660 | ||
e09875d4 | 661 | tp = find_thread_ptid (ptid); |
e1ac3328 | 662 | gdb_assert (tp); |
30596231 | 663 | return tp->state == state; |
4f8d22e3 PA |
664 | } |
665 | ||
666 | int | |
667 | is_stopped (ptid_t ptid) | |
668 | { | |
4f8d22e3 PA |
669 | return is_thread_state (ptid, THREAD_STOPPED); |
670 | } | |
671 | ||
672 | int | |
673 | is_exited (ptid_t ptid) | |
674 | { | |
4f8d22e3 PA |
675 | return is_thread_state (ptid, THREAD_EXITED); |
676 | } | |
677 | ||
678 | int | |
679 | is_running (ptid_t ptid) | |
680 | { | |
4f8d22e3 | 681 | return is_thread_state (ptid, THREAD_RUNNING); |
e1ac3328 VP |
682 | } |
683 | ||
8ea051c5 PA |
684 | int |
685 | is_executing (ptid_t ptid) | |
686 | { | |
687 | struct thread_info *tp; | |
688 | ||
e09875d4 | 689 | tp = find_thread_ptid (ptid); |
8ea051c5 | 690 | gdb_assert (tp); |
30596231 | 691 | return tp->executing; |
8ea051c5 PA |
692 | } |
693 | ||
694 | void | |
695 | set_executing (ptid_t ptid, int executing) | |
696 | { | |
697 | struct thread_info *tp; | |
d90e17a7 | 698 | int all = ptid_equal (ptid, minus_one_ptid); |
8ea051c5 | 699 | |
d90e17a7 | 700 | if (all || ptid_is_pid (ptid)) |
8ea051c5 PA |
701 | { |
702 | for (tp = thread_list; tp; tp = tp->next) | |
d90e17a7 | 703 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) |
30596231 | 704 | tp->executing = executing; |
8ea051c5 PA |
705 | } |
706 | else | |
707 | { | |
e09875d4 | 708 | tp = find_thread_ptid (ptid); |
8ea051c5 | 709 | gdb_assert (tp); |
30596231 | 710 | tp->executing = executing; |
8ea051c5 | 711 | } |
b57bacec PA |
712 | |
713 | /* It only takes one running thread to spawn more threads.*/ | |
714 | if (executing) | |
715 | threads_executing = 1; | |
716 | /* Only clear the flag if the caller is telling us everything is | |
717 | stopped. */ | |
718 | else if (ptid_equal (minus_one_ptid, ptid)) | |
719 | threads_executing = 0; | |
720 | } | |
721 | ||
722 | /* See gdbthread.h. */ | |
723 | ||
724 | int | |
725 | threads_are_executing (void) | |
726 | { | |
727 | return threads_executing; | |
8ea051c5 PA |
728 | } |
729 | ||
252fbfc8 PA |
730 | void |
731 | set_stop_requested (ptid_t ptid, int stop) | |
732 | { | |
733 | struct thread_info *tp; | |
734 | int all = ptid_equal (ptid, minus_one_ptid); | |
735 | ||
736 | if (all || ptid_is_pid (ptid)) | |
737 | { | |
738 | for (tp = thread_list; tp; tp = tp->next) | |
739 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) | |
740 | tp->stop_requested = stop; | |
741 | } | |
742 | else | |
743 | { | |
e09875d4 | 744 | tp = find_thread_ptid (ptid); |
252fbfc8 PA |
745 | gdb_assert (tp); |
746 | tp->stop_requested = stop; | |
747 | } | |
748 | ||
749 | /* Call the stop requested observer so other components of GDB can | |
750 | react to this request. */ | |
751 | if (stop) | |
752 | observer_notify_thread_stop_requested (ptid); | |
753 | } | |
754 | ||
29f49a6a PA |
755 | void |
756 | finish_thread_state (ptid_t ptid) | |
757 | { | |
758 | struct thread_info *tp; | |
759 | int all; | |
760 | int any_started = 0; | |
761 | ||
762 | all = ptid_equal (ptid, minus_one_ptid); | |
763 | ||
764 | if (all || ptid_is_pid (ptid)) | |
765 | { | |
766 | for (tp = thread_list; tp; tp = tp->next) | |
767 | { | |
30596231 | 768 | if (tp->state == THREAD_EXITED) |
29f49a6a PA |
769 | continue; |
770 | if (all || ptid_get_pid (ptid) == ptid_get_pid (tp->ptid)) | |
771 | { | |
30596231 | 772 | if (tp->executing && tp->state == THREAD_STOPPED) |
29f49a6a | 773 | any_started = 1; |
30596231 | 774 | tp->state = tp->executing ? THREAD_RUNNING : THREAD_STOPPED; |
29f49a6a PA |
775 | } |
776 | } | |
777 | } | |
778 | else | |
779 | { | |
e09875d4 | 780 | tp = find_thread_ptid (ptid); |
29f49a6a | 781 | gdb_assert (tp); |
30596231 | 782 | if (tp->state != THREAD_EXITED) |
29f49a6a | 783 | { |
30596231 | 784 | if (tp->executing && tp->state == THREAD_STOPPED) |
29f49a6a | 785 | any_started = 1; |
30596231 | 786 | tp->state = tp->executing ? THREAD_RUNNING : THREAD_STOPPED; |
29f49a6a PA |
787 | } |
788 | } | |
789 | ||
790 | if (any_started) | |
791 | observer_notify_target_resumed (ptid); | |
792 | } | |
793 | ||
794 | void | |
795 | finish_thread_state_cleanup (void *arg) | |
796 | { | |
797 | ptid_t *ptid_p = arg; | |
798 | ||
799 | gdb_assert (arg); | |
800 | ||
801 | finish_thread_state (*ptid_p); | |
802 | } | |
803 | ||
ce4c476a PA |
804 | int |
805 | pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread) | |
806 | { | |
807 | return (pc >= thread->control.step_range_start | |
808 | && pc < thread->control.step_range_end); | |
809 | } | |
810 | ||
8e8901c5 | 811 | /* Prints the list of threads and their details on UIOUT. |
aea5b279 | 812 | This is a version of 'info_threads_command' suitable for |
c378eb4e | 813 | use from MI. |
4f8d22e3 | 814 | If REQUESTED_THREAD is not -1, it's the GDB id of the thread |
8e8901c5 | 815 | that should be printed. Otherwise, all threads are |
c378eb4e | 816 | printed. |
3ee1c036 | 817 | If PID is not -1, only print threads from the process PID. |
c378eb4e | 818 | Otherwise, threads from all attached PIDs are printed. |
3ee1c036 VP |
819 | If both REQUESTED_THREAD and PID are not -1, then the thread |
820 | is printed if it belongs to the specified process. Otherwise, | |
821 | an error is raised. */ | |
8e8901c5 | 822 | void |
aea5b279 | 823 | print_thread_info (struct ui_out *uiout, char *requested_threads, int pid) |
c906108c SS |
824 | { |
825 | struct thread_info *tp; | |
39f77062 | 826 | ptid_t current_ptid; |
99b3d574 | 827 | struct cleanup *old_chain; |
4694da01 | 828 | char *extra_info, *name, *target_id; |
8e8901c5 | 829 | int current_thread = -1; |
c906108c | 830 | |
dc146f7c | 831 | update_thread_list (); |
39f77062 | 832 | current_ptid = inferior_ptid; |
4f8d22e3 PA |
833 | |
834 | /* We'll be switching threads temporarily. */ | |
835 | old_chain = make_cleanup_restore_current_thread (); | |
836 | ||
a7658b96 TT |
837 | /* For backward compatibility, we make a list for MI. A table is |
838 | preferable for the CLI, though, because it shows table | |
839 | headers. */ | |
840 | if (ui_out_is_mi_like_p (uiout)) | |
841 | make_cleanup_ui_out_list_begin_end (uiout, "threads"); | |
842 | else | |
843 | { | |
844 | int n_threads = 0; | |
845 | ||
846 | for (tp = thread_list; tp; tp = tp->next) | |
847 | { | |
aea5b279 | 848 | if (!number_is_in_list (requested_threads, tp->num)) |
a7658b96 TT |
849 | continue; |
850 | ||
dfd4cc63 | 851 | if (pid != -1 && ptid_get_pid (tp->ptid) != pid) |
a7658b96 TT |
852 | continue; |
853 | ||
30596231 | 854 | if (tp->state == THREAD_EXITED) |
a7658b96 TT |
855 | continue; |
856 | ||
857 | ++n_threads; | |
858 | } | |
859 | ||
860 | if (n_threads == 0) | |
861 | { | |
aea5b279 | 862 | if (requested_threads == NULL || *requested_threads == '\0') |
a7658b96 TT |
863 | ui_out_message (uiout, 0, _("No threads.\n")); |
864 | else | |
aea5b279 MS |
865 | ui_out_message (uiout, 0, _("No threads match '%s'.\n"), |
866 | requested_threads); | |
a7658b96 TT |
867 | do_cleanups (old_chain); |
868 | return; | |
869 | } | |
870 | ||
4694da01 | 871 | make_cleanup_ui_out_table_begin_end (uiout, 4, n_threads, "threads"); |
a7658b96 TT |
872 | |
873 | ui_out_table_header (uiout, 1, ui_left, "current", ""); | |
874 | ui_out_table_header (uiout, 4, ui_left, "id", "Id"); | |
875 | ui_out_table_header (uiout, 17, ui_left, "target-id", "Target Id"); | |
a7658b96 TT |
876 | ui_out_table_header (uiout, 1, ui_left, "frame", "Frame"); |
877 | ui_out_table_body (uiout); | |
878 | } | |
879 | ||
c906108c SS |
880 | for (tp = thread_list; tp; tp = tp->next) |
881 | { | |
8e8901c5 | 882 | struct cleanup *chain2; |
dc146f7c | 883 | int core; |
8e8901c5 | 884 | |
aea5b279 | 885 | if (!number_is_in_list (requested_threads, tp->num)) |
8e8901c5 VP |
886 | continue; |
887 | ||
dfd4cc63 | 888 | if (pid != -1 && ptid_get_pid (tp->ptid) != pid) |
3ee1c036 | 889 | { |
aea5b279 | 890 | if (requested_threads != NULL && *requested_threads != '\0') |
3ee1c036 VP |
891 | error (_("Requested thread not found in requested process")); |
892 | continue; | |
893 | } | |
894 | ||
4f8d22e3 PA |
895 | if (ptid_equal (tp->ptid, current_ptid)) |
896 | current_thread = tp->num; | |
897 | ||
30596231 | 898 | if (tp->state == THREAD_EXITED) |
4f8d22e3 PA |
899 | continue; |
900 | ||
8e8901c5 VP |
901 | chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); |
902 | ||
a7658b96 TT |
903 | if (ui_out_is_mi_like_p (uiout)) |
904 | { | |
905 | /* Compatibility. */ | |
906 | if (ptid_equal (tp->ptid, current_ptid)) | |
907 | ui_out_text (uiout, "* "); | |
908 | else | |
909 | ui_out_text (uiout, " "); | |
910 | } | |
c906108c | 911 | else |
a7658b96 TT |
912 | { |
913 | if (ptid_equal (tp->ptid, current_ptid)) | |
914 | ui_out_field_string (uiout, "current", "*"); | |
915 | else | |
916 | ui_out_field_skip (uiout, "current"); | |
917 | } | |
c906108c | 918 | |
8e8901c5 | 919 | ui_out_field_int (uiout, "id", tp->num); |
0d06e24b | 920 | |
4694da01 TT |
921 | /* For the CLI, we stuff everything into the target-id field. |
922 | This is a gross hack to make the output come out looking | |
923 | correct. The underlying problem here is that ui-out has no | |
924 | way to specify that a field's space allocation should be | |
925 | shared by several fields. For MI, we do the right thing | |
926 | instead. */ | |
927 | ||
928 | target_id = target_pid_to_str (tp->ptid); | |
ed406532 | 929 | extra_info = target_extra_thread_info (tp); |
4694da01 TT |
930 | name = tp->name ? tp->name : target_thread_name (tp); |
931 | ||
932 | if (ui_out_is_mi_like_p (uiout)) | |
8e8901c5 | 933 | { |
4694da01 TT |
934 | ui_out_field_string (uiout, "target-id", target_id); |
935 | if (extra_info) | |
936 | ui_out_field_string (uiout, "details", extra_info); | |
937 | if (name) | |
938 | ui_out_field_string (uiout, "name", name); | |
939 | } | |
940 | else | |
941 | { | |
942 | struct cleanup *str_cleanup; | |
943 | char *contents; | |
944 | ||
945 | if (extra_info && name) | |
946 | contents = xstrprintf ("%s \"%s\" (%s)", target_id, | |
947 | name, extra_info); | |
948 | else if (extra_info) | |
949 | contents = xstrprintf ("%s (%s)", target_id, extra_info); | |
950 | else if (name) | |
951 | contents = xstrprintf ("%s \"%s\"", target_id, name); | |
952 | else | |
953 | contents = xstrdup (target_id); | |
954 | str_cleanup = make_cleanup (xfree, contents); | |
955 | ||
956 | ui_out_field_string (uiout, "target-id", contents); | |
957 | do_cleanups (str_cleanup); | |
8e8901c5 | 958 | } |
4f8d22e3 | 959 | |
30596231 | 960 | if (tp->state == THREAD_RUNNING) |
94cc34af PA |
961 | ui_out_text (uiout, "(running)\n"); |
962 | else | |
963 | { | |
964 | /* The switch below puts us at the top of the stack (leaf | |
965 | frame). */ | |
966 | switch_to_thread (tp->ptid); | |
967 | print_stack_frame (get_selected_frame (NULL), | |
968 | /* For MI output, print frame level. */ | |
969 | ui_out_is_mi_like_p (uiout), | |
08d72866 | 970 | LOCATION, 0); |
94cc34af | 971 | } |
8e8901c5 | 972 | |
90139f7d VP |
973 | if (ui_out_is_mi_like_p (uiout)) |
974 | { | |
975 | char *state = "stopped"; | |
5d502164 | 976 | |
30596231 | 977 | if (tp->state == THREAD_RUNNING) |
90139f7d VP |
978 | state = "running"; |
979 | ui_out_field_string (uiout, "state", state); | |
980 | } | |
981 | ||
dc146f7c VP |
982 | core = target_core_of_thread (tp->ptid); |
983 | if (ui_out_is_mi_like_p (uiout) && core != -1) | |
984 | ui_out_field_int (uiout, "core", core); | |
985 | ||
8e8901c5 | 986 | do_cleanups (chain2); |
c906108c SS |
987 | } |
988 | ||
99b3d574 DP |
989 | /* Restores the current thread and the frame selected before |
990 | the "info threads" command. */ | |
991 | do_cleanups (old_chain); | |
c906108c | 992 | |
aea5b279 | 993 | if (pid == -1 && requested_threads == NULL) |
8e8901c5 | 994 | { |
4f8d22e3 | 995 | gdb_assert (current_thread != -1 |
d729566a PA |
996 | || !thread_list |
997 | || ptid_equal (inferior_ptid, null_ptid)); | |
0bcd3e20 | 998 | if (current_thread != -1 && ui_out_is_mi_like_p (uiout)) |
8e8901c5 | 999 | ui_out_field_int (uiout, "current-thread-id", current_thread); |
94cc34af | 1000 | |
4f8d22e3 PA |
1001 | if (current_thread != -1 && is_exited (current_ptid)) |
1002 | ui_out_message (uiout, 0, "\n\ | |
1003 | The current thread <Thread ID %d> has terminated. See `help thread'.\n", | |
1004 | current_thread); | |
d729566a PA |
1005 | else if (thread_list |
1006 | && current_thread == -1 | |
1007 | && ptid_equal (current_ptid, null_ptid)) | |
1008 | ui_out_message (uiout, 0, "\n\ | |
1009 | No selected thread. See `help thread'.\n"); | |
c906108c | 1010 | } |
c906108c SS |
1011 | } |
1012 | ||
8e8901c5 VP |
1013 | /* Print information about currently known threads |
1014 | ||
60f98dde MS |
1015 | Optional ARG is a thread id, or list of thread ids. |
1016 | ||
1017 | Note: this has the drawback that it _really_ switches | |
1018 | threads, which frees the frame cache. A no-side | |
1019 | effects info-threads command would be nicer. */ | |
8e8901c5 VP |
1020 | |
1021 | static void | |
1022 | info_threads_command (char *arg, int from_tty) | |
1023 | { | |
79a45e25 | 1024 | print_thread_info (current_uiout, arg, -1); |
8e8901c5 VP |
1025 | } |
1026 | ||
c378eb4e | 1027 | /* Switch from one thread to another. */ |
c906108c | 1028 | |
6a6b96b9 | 1029 | void |
39f77062 | 1030 | switch_to_thread (ptid_t ptid) |
c906108c | 1031 | { |
6c95b8df PA |
1032 | /* Switch the program space as well, if we can infer it from the now |
1033 | current thread. Otherwise, it's up to the caller to select the | |
1034 | space it wants. */ | |
1035 | if (!ptid_equal (ptid, null_ptid)) | |
1036 | { | |
1037 | struct inferior *inf; | |
1038 | ||
1039 | inf = find_inferior_pid (ptid_get_pid (ptid)); | |
1040 | gdb_assert (inf != NULL); | |
1041 | set_current_program_space (inf->pspace); | |
1042 | set_current_inferior (inf); | |
1043 | } | |
1044 | ||
39f77062 | 1045 | if (ptid_equal (ptid, inferior_ptid)) |
c906108c SS |
1046 | return; |
1047 | ||
39f77062 | 1048 | inferior_ptid = ptid; |
35f196d9 | 1049 | reinit_frame_cache (); |
94cc34af | 1050 | |
4f8d22e3 PA |
1051 | /* We don't check for is_stopped, because we're called at times |
1052 | while in the TARGET_RUNNING state, e.g., while handling an | |
1053 | internal event. */ | |
d729566a PA |
1054 | if (!ptid_equal (inferior_ptid, null_ptid) |
1055 | && !is_exited (ptid) | |
1056 | && !is_executing (ptid)) | |
fb14de7b | 1057 | stop_pc = regcache_read_pc (get_thread_regcache (ptid)); |
94cc34af PA |
1058 | else |
1059 | stop_pc = ~(CORE_ADDR) 0; | |
c906108c SS |
1060 | } |
1061 | ||
1062 | static void | |
39f77062 | 1063 | restore_current_thread (ptid_t ptid) |
c906108c | 1064 | { |
dcf4fbde | 1065 | switch_to_thread (ptid); |
99b3d574 DP |
1066 | } |
1067 | ||
1068 | static void | |
4f8d22e3 | 1069 | restore_selected_frame (struct frame_id a_frame_id, int frame_level) |
99b3d574 | 1070 | { |
4f8d22e3 PA |
1071 | struct frame_info *frame = NULL; |
1072 | int count; | |
1073 | ||
eb8c0621 TT |
1074 | /* This means there was no selected frame. */ |
1075 | if (frame_level == -1) | |
1076 | { | |
1077 | select_frame (NULL); | |
1078 | return; | |
1079 | } | |
1080 | ||
4f8d22e3 PA |
1081 | gdb_assert (frame_level >= 0); |
1082 | ||
1083 | /* Restore by level first, check if the frame id is the same as | |
1084 | expected. If that fails, try restoring by frame id. If that | |
1085 | fails, nothing to do, just warn the user. */ | |
1086 | ||
1087 | count = frame_level; | |
1088 | frame = find_relative_frame (get_current_frame (), &count); | |
1089 | if (count == 0 | |
1090 | && frame != NULL | |
005ca36a JB |
1091 | /* The frame ids must match - either both valid or both outer_frame_id. |
1092 | The latter case is not failsafe, but since it's highly unlikely | |
4f8d22e3 PA |
1093 | the search by level finds the wrong frame, it's 99.9(9)% of |
1094 | the time (for all practical purposes) safe. */ | |
005ca36a | 1095 | && frame_id_eq (get_frame_id (frame), a_frame_id)) |
4f8d22e3 PA |
1096 | { |
1097 | /* Cool, all is fine. */ | |
1098 | select_frame (frame); | |
1099 | return; | |
1100 | } | |
99b3d574 | 1101 | |
4f8d22e3 PA |
1102 | frame = frame_find_by_id (a_frame_id); |
1103 | if (frame != NULL) | |
1104 | { | |
1105 | /* Cool, refound it. */ | |
1106 | select_frame (frame); | |
1107 | return; | |
1108 | } | |
99b3d574 | 1109 | |
0c501536 PA |
1110 | /* Nothing else to do, the frame layout really changed. Select the |
1111 | innermost stack frame. */ | |
1112 | select_frame (get_current_frame ()); | |
1113 | ||
1114 | /* Warn the user. */ | |
79a45e25 | 1115 | if (frame_level > 0 && !ui_out_is_mi_like_p (current_uiout)) |
99b3d574 | 1116 | { |
3e43a32a | 1117 | warning (_("Couldn't restore frame #%d in " |
e0162910 | 1118 | "current thread. Bottom (innermost) frame selected:"), |
4f8d22e3 PA |
1119 | frame_level); |
1120 | /* For MI, we should probably have a notification about | |
1121 | current frame change. But this error is not very | |
1122 | likely, so don't bother for now. */ | |
08d72866 | 1123 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
1124 | } |
1125 | } | |
1126 | ||
6ecce94d AC |
1127 | struct current_thread_cleanup |
1128 | { | |
39f77062 | 1129 | ptid_t inferior_ptid; |
99b3d574 | 1130 | struct frame_id selected_frame_id; |
4f8d22e3 PA |
1131 | int selected_frame_level; |
1132 | int was_stopped; | |
6c95b8df | 1133 | int inf_id; |
9addecb9 | 1134 | int was_removable; |
6ecce94d AC |
1135 | }; |
1136 | ||
1137 | static void | |
1138 | do_restore_current_thread_cleanup (void *arg) | |
1139 | { | |
4f8d22e3 | 1140 | struct thread_info *tp; |
6ecce94d | 1141 | struct current_thread_cleanup *old = arg; |
d729566a | 1142 | |
e09875d4 | 1143 | tp = find_thread_ptid (old->inferior_ptid); |
d729566a PA |
1144 | |
1145 | /* If the previously selected thread belonged to a process that has | |
1146 | in the mean time been deleted (due to normal exit, detach, etc.), | |
1147 | then don't revert back to it, but instead simply drop back to no | |
1148 | thread selected. */ | |
1149 | if (tp | |
88fc996f | 1150 | && find_inferior_pid (ptid_get_pid (tp->ptid)) != NULL) |
d729566a | 1151 | restore_current_thread (old->inferior_ptid); |
88fc996f | 1152 | else |
6c95b8df PA |
1153 | { |
1154 | restore_current_thread (null_ptid); | |
1155 | set_current_inferior (find_inferior_id (old->inf_id)); | |
1156 | } | |
94cc34af | 1157 | |
4f8d22e3 PA |
1158 | /* The running state of the originally selected thread may have |
1159 | changed, so we have to recheck it here. */ | |
d729566a PA |
1160 | if (!ptid_equal (inferior_ptid, null_ptid) |
1161 | && old->was_stopped | |
4f8d22e3 PA |
1162 | && is_stopped (inferior_ptid) |
1163 | && target_has_registers | |
1164 | && target_has_stack | |
1165 | && target_has_memory) | |
1166 | restore_selected_frame (old->selected_frame_id, | |
1167 | old->selected_frame_level); | |
1168 | } | |
1169 | ||
1170 | static void | |
1171 | restore_current_thread_cleanup_dtor (void *arg) | |
1172 | { | |
1173 | struct current_thread_cleanup *old = arg; | |
1174 | struct thread_info *tp; | |
9addecb9 | 1175 | struct inferior *inf; |
5d502164 | 1176 | |
e09875d4 | 1177 | tp = find_thread_ptid (old->inferior_ptid); |
4f8d22e3 PA |
1178 | if (tp) |
1179 | tp->refcount--; | |
9addecb9 TT |
1180 | inf = find_inferior_id (old->inf_id); |
1181 | if (inf != NULL) | |
1182 | inf->removable = old->was_removable; | |
b8c9b27d | 1183 | xfree (old); |
6ecce94d AC |
1184 | } |
1185 | ||
054e8d9e AA |
1186 | /* Set the thread reference count. */ |
1187 | ||
1188 | static void | |
1189 | set_thread_refcount (void *data) | |
1190 | { | |
1191 | int k; | |
1192 | struct thread_array_cleanup *ta_cleanup = data; | |
1193 | ||
1194 | for (k = 0; k != ta_cleanup->count; k++) | |
1195 | ta_cleanup->tp_array[k]->refcount--; | |
1196 | } | |
1197 | ||
6208b47d | 1198 | struct cleanup * |
4f8d22e3 | 1199 | make_cleanup_restore_current_thread (void) |
6ecce94d | 1200 | { |
4f8d22e3 PA |
1201 | struct thread_info *tp; |
1202 | struct frame_info *frame; | |
1203 | struct current_thread_cleanup *old; | |
1204 | ||
1205 | old = xmalloc (sizeof (struct current_thread_cleanup)); | |
39f77062 | 1206 | old->inferior_ptid = inferior_ptid; |
6c95b8df | 1207 | old->inf_id = current_inferior ()->num; |
9addecb9 | 1208 | old->was_removable = current_inferior ()->removable; |
4f8d22e3 | 1209 | |
d729566a PA |
1210 | if (!ptid_equal (inferior_ptid, null_ptid)) |
1211 | { | |
1212 | old->was_stopped = is_stopped (inferior_ptid); | |
1213 | if (old->was_stopped | |
1214 | && target_has_registers | |
1215 | && target_has_stack | |
1216 | && target_has_memory) | |
eb8c0621 TT |
1217 | { |
1218 | /* When processing internal events, there might not be a | |
1219 | selected frame. If we naively call get_selected_frame | |
1220 | here, then we can end up reading debuginfo for the | |
1221 | current frame, but we don't generally need the debuginfo | |
1222 | at this point. */ | |
1223 | frame = get_selected_frame_if_set (); | |
1224 | } | |
d729566a PA |
1225 | else |
1226 | frame = NULL; | |
4f8d22e3 | 1227 | |
d729566a PA |
1228 | old->selected_frame_id = get_frame_id (frame); |
1229 | old->selected_frame_level = frame_relative_level (frame); | |
1230 | ||
e09875d4 | 1231 | tp = find_thread_ptid (inferior_ptid); |
d729566a PA |
1232 | if (tp) |
1233 | tp->refcount++; | |
1234 | } | |
4f8d22e3 | 1235 | |
9addecb9 TT |
1236 | current_inferior ()->removable = 0; |
1237 | ||
4f8d22e3 PA |
1238 | return make_cleanup_dtor (do_restore_current_thread_cleanup, old, |
1239 | restore_current_thread_cleanup_dtor); | |
6ecce94d AC |
1240 | } |
1241 | ||
c906108c SS |
1242 | /* Apply a GDB command to a list of threads. List syntax is a whitespace |
1243 | seperated list of numbers, or ranges, or the keyword `all'. Ranges consist | |
1244 | of two numbers seperated by a hyphen. Examples: | |
1245 | ||
c5aa993b JM |
1246 | thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4 |
1247 | thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9 | |
c378eb4e | 1248 | thread apply all p x/i $pc Apply x/i $pc cmd to all threads. */ |
c906108c SS |
1249 | |
1250 | static void | |
fba45db2 | 1251 | thread_apply_all_command (char *cmd, int from_tty) |
c906108c | 1252 | { |
4f8d22e3 | 1253 | struct cleanup *old_chain; |
e35ce267 | 1254 | char *saved_cmd; |
054e8d9e AA |
1255 | int tc; |
1256 | struct thread_array_cleanup ta_cleanup; | |
c906108c SS |
1257 | |
1258 | if (cmd == NULL || *cmd == '\000') | |
8a3fe4f8 | 1259 | error (_("Please specify a command following the thread ID list")); |
94cc34af | 1260 | |
dc146f7c | 1261 | update_thread_list (); |
e9d196c5 | 1262 | |
4f8d22e3 PA |
1263 | old_chain = make_cleanup_restore_current_thread (); |
1264 | ||
e35ce267 | 1265 | /* Save a copy of the command in case it is clobbered by |
c378eb4e | 1266 | execute_command. */ |
5b616ba1 | 1267 | saved_cmd = xstrdup (cmd); |
94cc34af | 1268 | make_cleanup (xfree, saved_cmd); |
054e8d9e | 1269 | tc = thread_count (); |
94cc34af | 1270 | |
054e8d9e AA |
1271 | if (tc) |
1272 | { | |
1273 | struct thread_info **tp_array; | |
1274 | struct thread_info *tp; | |
1275 | int i = 0, k; | |
1276 | ||
1277 | /* Save a copy of the thread_list in case we execute detach | |
1278 | command. */ | |
1279 | tp_array = xmalloc (sizeof (struct thread_info *) * tc); | |
1280 | make_cleanup (xfree, tp_array); | |
1281 | ta_cleanup.tp_array = tp_array; | |
1282 | ta_cleanup.count = tc; | |
1283 | ||
034f788c | 1284 | ALL_NON_EXITED_THREADS (tp) |
054e8d9e AA |
1285 | { |
1286 | tp_array[i] = tp; | |
1287 | tp->refcount++; | |
1288 | i++; | |
1289 | } | |
1290 | ||
1291 | make_cleanup (set_thread_refcount, &ta_cleanup); | |
1292 | ||
1293 | for (k = 0; k != i; k++) | |
1294 | if (thread_alive (tp_array[k])) | |
1295 | { | |
1296 | switch_to_thread (tp_array[k]->ptid); | |
1297 | printf_filtered (_("\nThread %d (%s):\n"), | |
1298 | tp_array[k]->num, | |
1299 | target_pid_to_str (inferior_ptid)); | |
1300 | execute_command (cmd, from_tty); | |
1301 | ||
1302 | /* Restore exact command used previously. */ | |
1303 | strcpy (cmd, saved_cmd); | |
1304 | } | |
1305 | } | |
6ecce94d AC |
1306 | |
1307 | do_cleanups (old_chain); | |
c906108c SS |
1308 | } |
1309 | ||
1310 | static void | |
fba45db2 | 1311 | thread_apply_command (char *tidlist, int from_tty) |
c906108c SS |
1312 | { |
1313 | char *cmd; | |
c906108c | 1314 | struct cleanup *old_chain; |
e35ce267 | 1315 | char *saved_cmd; |
197f0a60 | 1316 | struct get_number_or_range_state state; |
c906108c SS |
1317 | |
1318 | if (tidlist == NULL || *tidlist == '\000') | |
8a3fe4f8 | 1319 | error (_("Please specify a thread ID list")); |
c906108c | 1320 | |
c5aa993b | 1321 | for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++); |
c906108c SS |
1322 | |
1323 | if (*cmd == '\000') | |
8a3fe4f8 | 1324 | error (_("Please specify a command following the thread ID list")); |
c906108c | 1325 | |
e35ce267 | 1326 | /* Save a copy of the command in case it is clobbered by |
c378eb4e | 1327 | execute_command. */ |
5b616ba1 | 1328 | saved_cmd = xstrdup (cmd); |
4f8d22e3 | 1329 | old_chain = make_cleanup (xfree, saved_cmd); |
197f0a60 TT |
1330 | |
1331 | init_number_or_range (&state, tidlist); | |
1332 | while (!state.finished && state.string < cmd) | |
c906108c SS |
1333 | { |
1334 | struct thread_info *tp; | |
65ebfb52 | 1335 | int start; |
c906108c | 1336 | |
197f0a60 | 1337 | start = get_number_or_range (&state); |
c906108c | 1338 | |
65fc9b77 PA |
1339 | make_cleanup_restore_current_thread (); |
1340 | ||
65ebfb52 | 1341 | tp = find_thread_id (start); |
c906108c | 1342 | |
65ebfb52 MS |
1343 | if (!tp) |
1344 | warning (_("Unknown thread %d."), start); | |
1345 | else if (!thread_alive (tp)) | |
1346 | warning (_("Thread %d has terminated."), start); | |
1347 | else | |
1348 | { | |
1349 | switch_to_thread (tp->ptid); | |
4f8d22e3 | 1350 | |
65ebfb52 MS |
1351 | printf_filtered (_("\nThread %d (%s):\n"), tp->num, |
1352 | target_pid_to_str (inferior_ptid)); | |
1353 | execute_command (cmd, from_tty); | |
4f8d22e3 | 1354 | |
65ebfb52 MS |
1355 | /* Restore exact command used previously. */ |
1356 | strcpy (cmd, saved_cmd); | |
c906108c SS |
1357 | } |
1358 | } | |
6ecce94d AC |
1359 | |
1360 | do_cleanups (old_chain); | |
c906108c SS |
1361 | } |
1362 | ||
1363 | /* Switch to the specified thread. Will dispatch off to thread_apply_command | |
1364 | if prefix of arg is `apply'. */ | |
1365 | ||
1366 | static void | |
fba45db2 | 1367 | thread_command (char *tidstr, int from_tty) |
c906108c | 1368 | { |
c906108c SS |
1369 | if (!tidstr) |
1370 | { | |
d729566a PA |
1371 | if (ptid_equal (inferior_ptid, null_ptid)) |
1372 | error (_("No thread selected")); | |
1373 | ||
c906108c | 1374 | if (target_has_stack) |
4f8d22e3 PA |
1375 | { |
1376 | if (is_exited (inferior_ptid)) | |
1377 | printf_filtered (_("[Current thread is %d (%s) (exited)]\n"), | |
1378 | pid_to_thread_id (inferior_ptid), | |
54ba13f7 | 1379 | target_pid_to_str (inferior_ptid)); |
4f8d22e3 PA |
1380 | else |
1381 | printf_filtered (_("[Current thread is %d (%s)]\n"), | |
1382 | pid_to_thread_id (inferior_ptid), | |
54ba13f7 | 1383 | target_pid_to_str (inferior_ptid)); |
4f8d22e3 | 1384 | } |
c906108c | 1385 | else |
8a3fe4f8 | 1386 | error (_("No stack.")); |
c906108c SS |
1387 | return; |
1388 | } | |
c5394b80 | 1389 | |
79a45e25 | 1390 | gdb_thread_select (current_uiout, tidstr, NULL); |
c5394b80 JM |
1391 | } |
1392 | ||
4694da01 TT |
1393 | /* Implementation of `thread name'. */ |
1394 | ||
1395 | static void | |
1396 | thread_name_command (char *arg, int from_tty) | |
1397 | { | |
1398 | struct thread_info *info; | |
1399 | ||
1400 | if (ptid_equal (inferior_ptid, null_ptid)) | |
1401 | error (_("No thread selected")); | |
1402 | ||
529480d0 | 1403 | arg = skip_spaces (arg); |
4694da01 TT |
1404 | |
1405 | info = inferior_thread (); | |
1406 | xfree (info->name); | |
1407 | info->name = arg ? xstrdup (arg) : NULL; | |
1408 | } | |
1409 | ||
60f98dde MS |
1410 | /* Find thread ids with a name, target pid, or extra info matching ARG. */ |
1411 | ||
1412 | static void | |
1413 | thread_find_command (char *arg, int from_tty) | |
1414 | { | |
1415 | struct thread_info *tp; | |
1416 | char *tmp; | |
1417 | unsigned long match = 0; | |
1418 | ||
1419 | if (arg == NULL || *arg == '\0') | |
1420 | error (_("Command requires an argument.")); | |
1421 | ||
1422 | tmp = re_comp (arg); | |
1423 | if (tmp != 0) | |
1424 | error (_("Invalid regexp (%s): %s"), tmp, arg); | |
1425 | ||
1426 | update_thread_list (); | |
1427 | for (tp = thread_list; tp; tp = tp->next) | |
1428 | { | |
1429 | if (tp->name != NULL && re_exec (tp->name)) | |
1430 | { | |
1431 | printf_filtered (_("Thread %d has name '%s'\n"), | |
1432 | tp->num, tp->name); | |
1433 | match++; | |
1434 | } | |
1435 | ||
1436 | tmp = target_thread_name (tp); | |
1437 | if (tmp != NULL && re_exec (tmp)) | |
1438 | { | |
1439 | printf_filtered (_("Thread %d has target name '%s'\n"), | |
1440 | tp->num, tmp); | |
1441 | match++; | |
1442 | } | |
1443 | ||
1444 | tmp = target_pid_to_str (tp->ptid); | |
1445 | if (tmp != NULL && re_exec (tmp)) | |
1446 | { | |
1447 | printf_filtered (_("Thread %d has target id '%s'\n"), | |
1448 | tp->num, tmp); | |
1449 | match++; | |
1450 | } | |
1451 | ||
1452 | tmp = target_extra_thread_info (tp); | |
1453 | if (tmp != NULL && re_exec (tmp)) | |
1454 | { | |
1455 | printf_filtered (_("Thread %d has extra info '%s'\n"), | |
1456 | tp->num, tmp); | |
1457 | match++; | |
1458 | } | |
1459 | } | |
1460 | if (!match) | |
1461 | printf_filtered (_("No threads match '%s'\n"), arg); | |
1462 | } | |
1463 | ||
93815fbf VP |
1464 | /* Print notices when new threads are attached and detached. */ |
1465 | int print_thread_events = 1; | |
1466 | static void | |
1467 | show_print_thread_events (struct ui_file *file, int from_tty, | |
1468 | struct cmd_list_element *c, const char *value) | |
1469 | { | |
3e43a32a MS |
1470 | fprintf_filtered (file, |
1471 | _("Printing of thread events is %s.\n"), | |
93815fbf VP |
1472 | value); |
1473 | } | |
1474 | ||
c5394b80 | 1475 | static int |
6949171e | 1476 | do_captured_thread_select (struct ui_out *uiout, void *tidstr) |
c5394b80 JM |
1477 | { |
1478 | int num; | |
1479 | struct thread_info *tp; | |
1480 | ||
81490ea1 | 1481 | num = value_as_long (parse_and_eval (tidstr)); |
c906108c SS |
1482 | |
1483 | tp = find_thread_id (num); | |
1484 | ||
8b93c638 | 1485 | if (!tp) |
8a3fe4f8 | 1486 | error (_("Thread ID %d not known."), num); |
c906108c SS |
1487 | |
1488 | if (!thread_alive (tp)) | |
8a3fe4f8 | 1489 | error (_("Thread ID %d has terminated."), num); |
c906108c | 1490 | |
dcf4fbde | 1491 | switch_to_thread (tp->ptid); |
c906108c | 1492 | |
db5a7484 NR |
1493 | annotate_thread_changed (); |
1494 | ||
8b93c638 | 1495 | ui_out_text (uiout, "[Switching to thread "); |
39f77062 | 1496 | ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_ptid)); |
8b93c638 | 1497 | ui_out_text (uiout, " ("); |
54ba13f7 | 1498 | ui_out_text (uiout, target_pid_to_str (inferior_ptid)); |
8b93c638 | 1499 | ui_out_text (uiout, ")]"); |
c5394b80 | 1500 | |
4f8d22e3 PA |
1501 | /* Note that we can't reach this with an exited thread, due to the |
1502 | thread_alive check above. */ | |
30596231 | 1503 | if (tp->state == THREAD_RUNNING) |
94cc34af | 1504 | ui_out_text (uiout, "(running)\n"); |
4f8d22e3 | 1505 | else |
98871305 TT |
1506 | { |
1507 | ui_out_text (uiout, "\n"); | |
08d72866 | 1508 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
98871305 | 1509 | } |
4f8d22e3 PA |
1510 | |
1511 | /* Since the current thread may have changed, see if there is any | |
1512 | exited thread we can now delete. */ | |
1513 | prune_threads (); | |
94cc34af | 1514 | |
c5394b80 JM |
1515 | return GDB_RC_OK; |
1516 | } | |
1517 | ||
1518 | enum gdb_rc | |
ce43223b | 1519 | gdb_thread_select (struct ui_out *uiout, char *tidstr, char **error_message) |
c5394b80 | 1520 | { |
b0b13bb4 DJ |
1521 | if (catch_exceptions_with_msg (uiout, do_captured_thread_select, tidstr, |
1522 | error_message, RETURN_MASK_ALL) < 0) | |
1523 | return GDB_RC_FAIL; | |
1524 | return GDB_RC_OK; | |
c906108c SS |
1525 | } |
1526 | ||
b57bacec PA |
1527 | /* Update the 'threads_executing' global based on the threads we know |
1528 | about right now. */ | |
1529 | ||
1530 | static void | |
1531 | update_threads_executing (void) | |
1532 | { | |
1533 | struct thread_info *tp; | |
1534 | ||
1535 | threads_executing = 0; | |
1536 | ALL_NON_EXITED_THREADS (tp) | |
1537 | { | |
1538 | if (tp->executing) | |
1539 | { | |
1540 | threads_executing = 1; | |
1541 | break; | |
1542 | } | |
1543 | } | |
1544 | } | |
1545 | ||
dc146f7c VP |
1546 | void |
1547 | update_thread_list (void) | |
1548 | { | |
1549 | prune_threads (); | |
1550 | target_find_new_threads (); | |
b57bacec | 1551 | update_threads_executing (); |
dc146f7c VP |
1552 | } |
1553 | ||
6aed2dbc SS |
1554 | /* Return a new value for the selected thread's id. Return a value of 0 if |
1555 | no thread is selected, or no threads exist. */ | |
1556 | ||
1557 | static struct value * | |
22d2b532 SDJ |
1558 | thread_id_make_value (struct gdbarch *gdbarch, struct internalvar *var, |
1559 | void *ignore) | |
6aed2dbc SS |
1560 | { |
1561 | struct thread_info *tp = find_thread_ptid (inferior_ptid); | |
1562 | ||
1563 | return value_from_longest (builtin_type (gdbarch)->builtin_int, | |
1564 | (tp ? tp->num : 0)); | |
1565 | } | |
1566 | ||
c906108c SS |
1567 | /* Commands with a prefix of `thread'. */ |
1568 | struct cmd_list_element *thread_cmd_list = NULL; | |
1569 | ||
22d2b532 SDJ |
1570 | /* Implementation of `thread' variable. */ |
1571 | ||
1572 | static const struct internalvar_funcs thread_funcs = | |
1573 | { | |
1574 | thread_id_make_value, | |
1575 | NULL, | |
1576 | NULL | |
1577 | }; | |
1578 | ||
c906108c | 1579 | void |
fba45db2 | 1580 | _initialize_thread (void) |
c906108c SS |
1581 | { |
1582 | static struct cmd_list_element *thread_apply_list = NULL; | |
c906108c | 1583 | |
60f98dde MS |
1584 | add_info ("threads", info_threads_command, |
1585 | _("Display currently known threads.\n\ | |
1586 | Usage: info threads [ID]...\n\ | |
1587 | Optional arguments are thread IDs with spaces between.\n\ | |
1588 | If no arguments, all threads are displayed.")); | |
c906108c | 1589 | |
d729566a | 1590 | add_prefix_cmd ("thread", class_run, thread_command, _("\ |
1bedd215 AC |
1591 | Use this command to switch between threads.\n\ |
1592 | The new thread ID must be currently known."), | |
d729566a | 1593 | &thread_cmd_list, "thread ", 1, &cmdlist); |
c906108c | 1594 | |
d729566a PA |
1595 | add_prefix_cmd ("apply", class_run, thread_apply_command, |
1596 | _("Apply a command to a list of threads."), | |
1597 | &thread_apply_list, "thread apply ", 1, &thread_cmd_list); | |
c906108c | 1598 | |
d729566a PA |
1599 | add_cmd ("all", class_run, thread_apply_all_command, |
1600 | _("Apply a command to all threads."), &thread_apply_list); | |
c906108c | 1601 | |
4694da01 TT |
1602 | add_cmd ("name", class_run, thread_name_command, |
1603 | _("Set the current thread's name.\n\ | |
1604 | Usage: thread name [NAME]\n\ | |
1605 | If NAME is not given, then any existing name is removed."), &thread_cmd_list); | |
1606 | ||
60f98dde MS |
1607 | add_cmd ("find", class_run, thread_find_command, _("\ |
1608 | Find threads that match a regular expression.\n\ | |
1609 | Usage: thread find REGEXP\n\ | |
1610 | Will display thread ids whose name, target ID, or extra info matches REGEXP."), | |
1611 | &thread_cmd_list); | |
1612 | ||
c906108c SS |
1613 | if (!xdb_commands) |
1614 | add_com_alias ("t", "thread", class_run, 1); | |
93815fbf VP |
1615 | |
1616 | add_setshow_boolean_cmd ("thread-events", no_class, | |
1617 | &print_thread_events, _("\ | |
11c68c47 EZ |
1618 | Set printing of thread events (such as thread start and exit)."), _("\ |
1619 | Show printing of thread events (such as thread start and exit)."), NULL, | |
93815fbf VP |
1620 | NULL, |
1621 | show_print_thread_events, | |
1622 | &setprintlist, &showprintlist); | |
6aed2dbc | 1623 | |
22d2b532 | 1624 | create_internalvar_type_lazy ("_thread", &thread_funcs, NULL); |
c906108c | 1625 | } |