Commit | Line | Data |
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b77209e0 PA |
1 | /* Multi-process control for GDB, the GNU debugger. |
2 | ||
7b6bb8da | 3 | Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
b77209e0 PA |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
6c95b8df | 21 | #include "exec.h" |
b77209e0 PA |
22 | #include "inferior.h" |
23 | #include "target.h" | |
24 | #include "command.h" | |
25 | #include "gdbcmd.h" | |
26 | #include "gdbthread.h" | |
27 | #include "ui-out.h" | |
4a92f99b | 28 | #include "observer.h" |
2277426b | 29 | #include "gdbthread.h" |
6c95b8df PA |
30 | #include "gdbcore.h" |
31 | #include "symfile.h" | |
3f81c18a | 32 | #include "environ.h" |
c82c0b55 | 33 | #include "cli/cli-utils.h" |
b77209e0 PA |
34 | |
35 | void _initialize_inferiors (void); | |
36 | ||
6c95b8df PA |
37 | static void inferior_alloc_data (struct inferior *inf); |
38 | static void inferior_free_data (struct inferior *inf); | |
39 | ||
40 | struct inferior *inferior_list = NULL; | |
b77209e0 PA |
41 | static int highest_inferior_num; |
42 | ||
43 | /* Print notices on inferior events (attach, detach, etc.), set with | |
44 | `set print inferior-events'. */ | |
45 | static int print_inferior_events = 0; | |
46 | ||
6c95b8df PA |
47 | /* The Current Inferior. */ |
48 | static struct inferior *current_inferior_ = NULL; | |
49 | ||
b77209e0 PA |
50 | struct inferior* |
51 | current_inferior (void) | |
52 | { | |
6c95b8df PA |
53 | return current_inferior_; |
54 | } | |
55 | ||
56 | void | |
57 | set_current_inferior (struct inferior *inf) | |
58 | { | |
59 | /* There's always an inferior. */ | |
60 | gdb_assert (inf != NULL); | |
61 | ||
62 | current_inferior_ = inf; | |
63 | } | |
64 | ||
65 | /* A cleanups callback, helper for save_current_program_space | |
66 | below. */ | |
67 | ||
68 | static void | |
69 | restore_inferior (void *arg) | |
70 | { | |
71 | struct inferior *saved_inferior = arg; | |
abbb1732 | 72 | |
6c95b8df PA |
73 | set_current_inferior (saved_inferior); |
74 | } | |
75 | ||
76 | /* Save the current program space so that it may be restored by a later | |
77 | call to do_cleanups. Returns the struct cleanup pointer needed for | |
78 | later doing the cleanup. */ | |
79 | ||
80 | struct cleanup * | |
81 | save_current_inferior (void) | |
82 | { | |
83 | struct cleanup *old_chain = make_cleanup (restore_inferior, | |
84 | current_inferior_); | |
abbb1732 | 85 | |
6c95b8df | 86 | return old_chain; |
b77209e0 PA |
87 | } |
88 | ||
89 | static void | |
90 | free_inferior (struct inferior *inf) | |
91 | { | |
e0ba6746 | 92 | discard_all_inferior_continuations (inf); |
6c95b8df | 93 | inferior_free_data (inf); |
3f81c18a VP |
94 | xfree (inf->args); |
95 | xfree (inf->terminal); | |
96 | free_environ (inf->environment); | |
b77209e0 PA |
97 | xfree (inf->private); |
98 | xfree (inf); | |
99 | } | |
100 | ||
101 | void | |
102 | init_inferior_list (void) | |
103 | { | |
104 | struct inferior *inf, *infnext; | |
105 | ||
106 | highest_inferior_num = 0; | |
107 | if (!inferior_list) | |
108 | return; | |
109 | ||
110 | for (inf = inferior_list; inf; inf = infnext) | |
111 | { | |
112 | infnext = inf->next; | |
113 | free_inferior (inf); | |
114 | } | |
115 | ||
116 | inferior_list = NULL; | |
117 | } | |
118 | ||
119 | struct inferior * | |
120 | add_inferior_silent (int pid) | |
121 | { | |
122 | struct inferior *inf; | |
123 | ||
124 | inf = xmalloc (sizeof (*inf)); | |
125 | memset (inf, 0, sizeof (*inf)); | |
126 | inf->pid = pid; | |
127 | ||
16c381f0 | 128 | inf->control.stop_soon = NO_STOP_QUIETLY; |
d6b48e9c | 129 | |
b77209e0 PA |
130 | inf->num = ++highest_inferior_num; |
131 | inf->next = inferior_list; | |
132 | inferior_list = inf; | |
133 | ||
3f81c18a VP |
134 | inf->environment = make_environ (); |
135 | init_environ (inf->environment); | |
136 | ||
6c95b8df PA |
137 | inferior_alloc_data (inf); |
138 | ||
a79b8f6e VP |
139 | observer_notify_inferior_added (inf); |
140 | ||
6c95b8df PA |
141 | if (pid != 0) |
142 | inferior_appeared (inf, pid); | |
a562dc8f | 143 | |
b77209e0 PA |
144 | return inf; |
145 | } | |
146 | ||
147 | struct inferior * | |
148 | add_inferior (int pid) | |
149 | { | |
150 | struct inferior *inf = add_inferior_silent (pid); | |
151 | ||
152 | if (print_inferior_events) | |
153 | printf_unfiltered (_("[New inferior %d]\n"), pid); | |
154 | ||
155 | return inf; | |
156 | } | |
157 | ||
158 | struct delete_thread_of_inferior_arg | |
159 | { | |
160 | int pid; | |
161 | int silent; | |
162 | }; | |
163 | ||
164 | static int | |
165 | delete_thread_of_inferior (struct thread_info *tp, void *data) | |
166 | { | |
167 | struct delete_thread_of_inferior_arg *arg = data; | |
168 | ||
169 | if (ptid_get_pid (tp->ptid) == arg->pid) | |
170 | { | |
171 | if (arg->silent) | |
172 | delete_thread_silent (tp->ptid); | |
173 | else | |
174 | delete_thread (tp->ptid); | |
175 | } | |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
6c95b8df PA |
180 | void |
181 | delete_threads_of_inferior (int pid) | |
182 | { | |
183 | struct inferior *inf; | |
184 | struct delete_thread_of_inferior_arg arg; | |
185 | ||
186 | for (inf = inferior_list; inf; inf = inf->next) | |
187 | if (inf->pid == pid) | |
188 | break; | |
189 | ||
190 | if (!inf) | |
191 | return; | |
192 | ||
193 | arg.pid = pid; | |
194 | arg.silent = 1; | |
195 | ||
196 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
197 | } | |
198 | ||
b77209e0 PA |
199 | /* If SILENT then be quiet -- don't announce a inferior death, or the |
200 | exit of its threads. */ | |
6c95b8df | 201 | |
a79b8f6e | 202 | void |
6c95b8df | 203 | delete_inferior_1 (struct inferior *todel, int silent) |
b77209e0 PA |
204 | { |
205 | struct inferior *inf, *infprev; | |
6c95b8df | 206 | struct delete_thread_of_inferior_arg arg; |
b77209e0 PA |
207 | |
208 | infprev = NULL; | |
209 | ||
210 | for (inf = inferior_list; inf; infprev = inf, inf = inf->next) | |
6c95b8df | 211 | if (inf == todel) |
b77209e0 PA |
212 | break; |
213 | ||
214 | if (!inf) | |
215 | return; | |
216 | ||
6c95b8df | 217 | arg.pid = inf->pid; |
b77209e0 PA |
218 | arg.silent = silent; |
219 | ||
220 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
4a92f99b | 221 | |
7e1789f5 PA |
222 | if (infprev) |
223 | infprev->next = inf->next; | |
224 | else | |
225 | inferior_list = inf->next; | |
226 | ||
a79b8f6e VP |
227 | observer_notify_inferior_removed (inf); |
228 | ||
7e1789f5 | 229 | free_inferior (inf); |
b77209e0 PA |
230 | } |
231 | ||
232 | void | |
233 | delete_inferior (int pid) | |
234 | { | |
6c95b8df PA |
235 | struct inferior *inf = find_inferior_pid (pid); |
236 | ||
237 | delete_inferior_1 (inf, 0); | |
b77209e0 PA |
238 | |
239 | if (print_inferior_events) | |
240 | printf_unfiltered (_("[Inferior %d exited]\n"), pid); | |
241 | } | |
242 | ||
243 | void | |
244 | delete_inferior_silent (int pid) | |
245 | { | |
6c95b8df PA |
246 | struct inferior *inf = find_inferior_pid (pid); |
247 | ||
248 | delete_inferior_1 (inf, 1); | |
249 | } | |
250 | ||
251 | ||
252 | /* If SILENT then be quiet -- don't announce a inferior exit, or the | |
253 | exit of its threads. */ | |
254 | ||
255 | static void | |
256 | exit_inferior_1 (struct inferior *inftoex, int silent) | |
257 | { | |
258 | struct inferior *inf; | |
259 | struct delete_thread_of_inferior_arg arg; | |
260 | ||
261 | for (inf = inferior_list; inf; inf = inf->next) | |
262 | if (inf == inftoex) | |
263 | break; | |
264 | ||
265 | if (!inf) | |
266 | return; | |
267 | ||
268 | arg.pid = inf->pid; | |
269 | arg.silent = silent; | |
270 | ||
271 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
272 | ||
273 | /* Notify the observers before removing the inferior from the list, | |
274 | so that the observers have a chance to look it up. */ | |
a79b8f6e | 275 | observer_notify_inferior_exit (inf); |
6c95b8df PA |
276 | |
277 | inf->pid = 0; | |
278 | if (inf->vfork_parent != NULL) | |
279 | { | |
280 | inf->vfork_parent->vfork_child = NULL; | |
281 | inf->vfork_parent = NULL; | |
282 | } | |
283 | } | |
284 | ||
285 | void | |
286 | exit_inferior (int pid) | |
287 | { | |
288 | struct inferior *inf = find_inferior_pid (pid); | |
abbb1732 | 289 | |
6c95b8df PA |
290 | exit_inferior_1 (inf, 0); |
291 | ||
292 | if (print_inferior_events) | |
293 | printf_unfiltered (_("[Inferior %d exited]\n"), pid); | |
294 | } | |
295 | ||
296 | void | |
297 | exit_inferior_silent (int pid) | |
298 | { | |
299 | struct inferior *inf = find_inferior_pid (pid); | |
abbb1732 | 300 | |
6c95b8df PA |
301 | exit_inferior_1 (inf, 1); |
302 | } | |
303 | ||
304 | void | |
305 | exit_inferior_num_silent (int num) | |
306 | { | |
307 | struct inferior *inf = find_inferior_id (num); | |
308 | ||
309 | exit_inferior_1 (inf, 1); | |
b77209e0 PA |
310 | } |
311 | ||
312 | void | |
313 | detach_inferior (int pid) | |
314 | { | |
6c95b8df | 315 | struct inferior *inf = find_inferior_pid (pid); |
abbb1732 | 316 | |
6c95b8df | 317 | exit_inferior_1 (inf, 1); |
b77209e0 PA |
318 | |
319 | if (print_inferior_events) | |
320 | printf_unfiltered (_("[Inferior %d detached]\n"), pid); | |
321 | } | |
322 | ||
6c95b8df PA |
323 | void |
324 | inferior_appeared (struct inferior *inf, int pid) | |
325 | { | |
326 | inf->pid = pid; | |
327 | ||
a79b8f6e | 328 | observer_notify_inferior_appeared (inf); |
6c95b8df PA |
329 | } |
330 | ||
82f73884 PA |
331 | void |
332 | discard_all_inferiors (void) | |
333 | { | |
6c95b8df | 334 | struct inferior *inf; |
82f73884 | 335 | |
6c95b8df | 336 | for (inf = inferior_list; inf; inf = inf->next) |
82f73884 | 337 | { |
6c95b8df PA |
338 | if (inf->pid != 0) |
339 | exit_inferior_silent (inf->pid); | |
82f73884 PA |
340 | } |
341 | } | |
342 | ||
6c95b8df | 343 | struct inferior * |
b77209e0 PA |
344 | find_inferior_id (int num) |
345 | { | |
346 | struct inferior *inf; | |
347 | ||
348 | for (inf = inferior_list; inf; inf = inf->next) | |
349 | if (inf->num == num) | |
350 | return inf; | |
351 | ||
352 | return NULL; | |
353 | } | |
354 | ||
355 | struct inferior * | |
356 | find_inferior_pid (int pid) | |
357 | { | |
358 | struct inferior *inf; | |
359 | ||
6c95b8df PA |
360 | /* Looking for inferior pid == 0 is always wrong, and indicative of |
361 | a bug somewhere else. There may be more than one with pid == 0, | |
362 | for instance. */ | |
363 | gdb_assert (pid != 0); | |
364 | ||
b77209e0 PA |
365 | for (inf = inferior_list; inf; inf = inf->next) |
366 | if (inf->pid == pid) | |
367 | return inf; | |
368 | ||
369 | return NULL; | |
370 | } | |
371 | ||
6c95b8df PA |
372 | /* Find an inferior bound to PSPACE. */ |
373 | ||
374 | struct inferior * | |
375 | find_inferior_for_program_space (struct program_space *pspace) | |
376 | { | |
377 | struct inferior *inf; | |
378 | ||
379 | for (inf = inferior_list; inf != NULL; inf = inf->next) | |
380 | { | |
381 | if (inf->pspace == pspace) | |
382 | return inf; | |
383 | } | |
384 | ||
385 | return NULL; | |
386 | } | |
387 | ||
b77209e0 PA |
388 | struct inferior * |
389 | iterate_over_inferiors (int (*callback) (struct inferior *, void *), | |
390 | void *data) | |
391 | { | |
392 | struct inferior *inf, *infnext; | |
393 | ||
394 | for (inf = inferior_list; inf; inf = infnext) | |
395 | { | |
396 | infnext = inf->next; | |
397 | if ((*callback) (inf, data)) | |
398 | return inf; | |
399 | } | |
400 | ||
401 | return NULL; | |
402 | } | |
403 | ||
404 | int | |
405 | valid_gdb_inferior_id (int num) | |
406 | { | |
407 | struct inferior *inf; | |
408 | ||
409 | for (inf = inferior_list; inf; inf = inf->next) | |
410 | if (inf->num == num) | |
411 | return 1; | |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
416 | int | |
417 | pid_to_gdb_inferior_id (int pid) | |
418 | { | |
419 | struct inferior *inf; | |
420 | ||
421 | for (inf = inferior_list; inf; inf = inf->next) | |
422 | if (inf->pid == pid) | |
423 | return inf->num; | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
428 | int | |
429 | gdb_inferior_id_to_pid (int num) | |
430 | { | |
431 | struct inferior *inferior = find_inferior_id (num); | |
432 | if (inferior) | |
433 | return inferior->pid; | |
434 | else | |
435 | return -1; | |
436 | } | |
437 | ||
438 | int | |
439 | in_inferior_list (int pid) | |
440 | { | |
441 | struct inferior *inf; | |
442 | ||
443 | for (inf = inferior_list; inf; inf = inf->next) | |
444 | if (inf->pid == pid) | |
445 | return 1; | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
450 | int | |
451 | have_inferiors (void) | |
452 | { | |
6c95b8df PA |
453 | struct inferior *inf; |
454 | ||
455 | for (inf = inferior_list; inf; inf = inf->next) | |
456 | if (inf->pid != 0) | |
457 | return 1; | |
458 | ||
459 | return 0; | |
b77209e0 PA |
460 | } |
461 | ||
c35b1492 PA |
462 | int |
463 | have_live_inferiors (void) | |
464 | { | |
cd2effb2 JK |
465 | struct cleanup *old_chain; |
466 | struct inferior *inf; | |
6c95b8df | 467 | |
cd2effb2 | 468 | old_chain = make_cleanup_restore_current_thread (); |
6c95b8df | 469 | |
cd2effb2 JK |
470 | for (inf = inferior_list; inf; inf = inf->next) |
471 | if (inf->pid != 0) | |
472 | { | |
473 | struct thread_info *tp; | |
474 | ||
475 | tp = any_thread_of_process (inf->pid); | |
476 | if (tp) | |
477 | { | |
478 | switch_to_thread (tp->ptid); | |
479 | ||
480 | if (target_has_execution) | |
481 | break; | |
482 | } | |
483 | } | |
484 | ||
485 | do_cleanups (old_chain); | |
486 | ||
487 | return inf != NULL; | |
6c95b8df PA |
488 | } |
489 | ||
490 | /* Prune away automatically added program spaces that aren't required | |
491 | anymore. */ | |
492 | ||
493 | void | |
494 | prune_inferiors (void) | |
495 | { | |
496 | struct inferior *ss, **ss_link; | |
497 | struct inferior *current = current_inferior (); | |
498 | ||
499 | ss = inferior_list; | |
500 | ss_link = &inferior_list; | |
501 | while (ss) | |
502 | { | |
503 | if (ss == current | |
504 | || !ss->removable | |
505 | || ss->pid != 0) | |
506 | { | |
507 | ss_link = &ss->next; | |
508 | ss = *ss_link; | |
509 | continue; | |
510 | } | |
511 | ||
512 | *ss_link = ss->next; | |
513 | delete_inferior_1 (ss, 1); | |
514 | ss = *ss_link; | |
515 | } | |
516 | ||
517 | prune_program_spaces (); | |
518 | } | |
519 | ||
520 | /* Simply returns the count of inferiors. */ | |
521 | ||
522 | int | |
523 | number_of_inferiors (void) | |
524 | { | |
525 | struct inferior *inf; | |
526 | int count = 0; | |
527 | ||
528 | for (inf = inferior_list; inf != NULL; inf = inf->next) | |
529 | count++; | |
530 | ||
531 | return count; | |
c35b1492 PA |
532 | } |
533 | ||
b77209e0 PA |
534 | /* Prints the list of inferiors and their details on UIOUT. This is a |
535 | version of 'info_inferior_command' suitable for use from MI. | |
536 | ||
c82c0b55 MS |
537 | If REQUESTED_INFERIORS is not NULL, it's a list of GDB ids of the |
538 | inferiors that should be printed. Otherwise, all inferiors are | |
539 | printed. */ | |
540 | ||
541 | static void | |
542 | print_inferior (struct ui_out *uiout, char *requested_inferiors) | |
b77209e0 PA |
543 | { |
544 | struct inferior *inf; | |
545 | struct cleanup *old_chain; | |
8bb318c6 | 546 | int inf_count = 0; |
b77209e0 | 547 | |
8bb318c6 TT |
548 | /* Compute number of inferiors we will print. */ |
549 | for (inf = inferior_list; inf; inf = inf->next) | |
550 | { | |
c82c0b55 | 551 | if (!number_is_in_list (requested_inferiors, inf->num)) |
8bb318c6 TT |
552 | continue; |
553 | ||
554 | ++inf_count; | |
555 | } | |
556 | ||
557 | if (inf_count == 0) | |
558 | { | |
559 | ui_out_message (uiout, 0, "No inferiors.\n"); | |
560 | return; | |
561 | } | |
562 | ||
6c95b8df | 563 | old_chain = make_cleanup_ui_out_table_begin_end (uiout, 4, inf_count, |
8bb318c6 | 564 | "inferiors"); |
3a1ff0b6 PA |
565 | ui_out_table_header (uiout, 1, ui_left, "current", ""); |
566 | ui_out_table_header (uiout, 4, ui_left, "number", "Num"); | |
567 | ui_out_table_header (uiout, 17, ui_left, "target-id", "Description"); | |
6c95b8df | 568 | ui_out_table_header (uiout, 17, ui_left, "exec", "Executable"); |
b77209e0 | 569 | |
6c95b8df | 570 | ui_out_table_body (uiout); |
b77209e0 PA |
571 | for (inf = inferior_list; inf; inf = inf->next) |
572 | { | |
573 | struct cleanup *chain2; | |
574 | ||
c82c0b55 | 575 | if (!number_is_in_list (requested_inferiors, inf->num)) |
b77209e0 PA |
576 | continue; |
577 | ||
578 | chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
579 | ||
6c95b8df | 580 | if (inf == current_inferior ()) |
8bb318c6 | 581 | ui_out_field_string (uiout, "current", "*"); |
b77209e0 | 582 | else |
8bb318c6 | 583 | ui_out_field_skip (uiout, "current"); |
b77209e0 | 584 | |
3a1ff0b6 | 585 | ui_out_field_int (uiout, "number", inf->num); |
6c95b8df PA |
586 | |
587 | if (inf->pid) | |
588 | ui_out_field_string (uiout, "target-id", | |
589 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
590 | else | |
591 | ui_out_field_string (uiout, "target-id", "<null>"); | |
592 | ||
593 | if (inf->pspace->ebfd) | |
594 | ui_out_field_string (uiout, "exec", | |
595 | bfd_get_filename (inf->pspace->ebfd)); | |
596 | else | |
597 | ui_out_field_skip (uiout, "exec"); | |
598 | ||
599 | /* Print extra info that isn't really fit to always present in | |
600 | tabular form. Currently we print the vfork parent/child | |
601 | relationships, if any. */ | |
602 | if (inf->vfork_parent) | |
603 | { | |
604 | ui_out_text (uiout, _("\n\tis vfork child of inferior ")); | |
605 | ui_out_field_int (uiout, "vfork-parent", inf->vfork_parent->num); | |
606 | } | |
607 | if (inf->vfork_child) | |
608 | { | |
609 | ui_out_text (uiout, _("\n\tis vfork parent of inferior ")); | |
610 | ui_out_field_int (uiout, "vfork-child", inf->vfork_child->num); | |
611 | } | |
b77209e0 PA |
612 | |
613 | ui_out_text (uiout, "\n"); | |
614 | do_cleanups (chain2); | |
615 | } | |
616 | ||
617 | do_cleanups (old_chain); | |
618 | } | |
619 | ||
2277426b PA |
620 | static void |
621 | detach_inferior_command (char *args, int from_tty) | |
622 | { | |
623 | int num, pid; | |
624 | struct thread_info *tp; | |
625 | ||
626 | if (!args || !*args) | |
af624141 | 627 | error (_("Requires argument (inferior id(s) to detach)")); |
2277426b | 628 | |
af624141 MS |
629 | while (*args != '\0') |
630 | { | |
631 | num = get_number_or_range (&args); | |
2277426b | 632 | |
af624141 MS |
633 | if (!valid_gdb_inferior_id (num)) |
634 | { | |
635 | warning (_("Inferior ID %d not known."), num); | |
636 | continue; | |
637 | } | |
2277426b | 638 | |
af624141 | 639 | pid = gdb_inferior_id_to_pid (num); |
2277426b | 640 | |
af624141 MS |
641 | tp = any_thread_of_process (pid); |
642 | if (!tp) | |
643 | { | |
644 | warning (_("Inferior ID %d has no threads."), num); | |
645 | continue; | |
646 | } | |
2277426b | 647 | |
af624141 | 648 | switch_to_thread (tp->ptid); |
2277426b | 649 | |
af624141 MS |
650 | detach_command (NULL, from_tty); |
651 | } | |
2277426b PA |
652 | } |
653 | ||
654 | static void | |
655 | kill_inferior_command (char *args, int from_tty) | |
656 | { | |
657 | int num, pid; | |
658 | struct thread_info *tp; | |
659 | ||
660 | if (!args || !*args) | |
af624141 | 661 | error (_("Requires argument (inferior id(s) to kill)")); |
2277426b | 662 | |
af624141 MS |
663 | while (*args != '\0') |
664 | { | |
665 | num = get_number_or_range (&args); | |
2277426b | 666 | |
af624141 MS |
667 | if (!valid_gdb_inferior_id (num)) |
668 | { | |
669 | warning (_("Inferior ID %d not known."), num); | |
670 | continue; | |
671 | } | |
2277426b | 672 | |
af624141 | 673 | pid = gdb_inferior_id_to_pid (num); |
2277426b | 674 | |
af624141 MS |
675 | tp = any_thread_of_process (pid); |
676 | if (!tp) | |
677 | { | |
678 | warning (_("Inferior ID %d has no threads."), num); | |
679 | continue; | |
680 | } | |
2277426b | 681 | |
af624141 | 682 | switch_to_thread (tp->ptid); |
2277426b | 683 | |
af624141 MS |
684 | target_kill (); |
685 | } | |
2277426b PA |
686 | |
687 | bfd_cache_close_all (); | |
688 | } | |
689 | ||
690 | static void | |
691 | inferior_command (char *args, int from_tty) | |
692 | { | |
6c95b8df PA |
693 | struct inferior *inf; |
694 | int num; | |
2277426b PA |
695 | |
696 | num = parse_and_eval_long (args); | |
697 | ||
6c95b8df PA |
698 | inf = find_inferior_id (num); |
699 | if (inf == NULL) | |
2277426b PA |
700 | error (_("Inferior ID %d not known."), num); |
701 | ||
6c95b8df PA |
702 | printf_filtered (_("[Switching to inferior %d [%s] (%s)]\n"), |
703 | inf->num, | |
704 | target_pid_to_str (pid_to_ptid (inf->pid)), | |
705 | (inf->pspace->ebfd | |
706 | ? bfd_get_filename (inf->pspace->ebfd) | |
707 | : _("<noexec>"))); | |
2277426b | 708 | |
6c95b8df | 709 | if (inf->pid != 0) |
2277426b | 710 | { |
6c95b8df PA |
711 | if (inf->pid != ptid_get_pid (inferior_ptid)) |
712 | { | |
713 | struct thread_info *tp; | |
2277426b | 714 | |
6c95b8df PA |
715 | tp = any_thread_of_process (inf->pid); |
716 | if (!tp) | |
717 | error (_("Inferior has no threads.")); | |
2277426b | 718 | |
6c95b8df PA |
719 | switch_to_thread (tp->ptid); |
720 | } | |
721 | ||
722 | printf_filtered (_("[Switching to thread %d (%s)] "), | |
723 | pid_to_thread_id (inferior_ptid), | |
724 | target_pid_to_str (inferior_ptid)); | |
2277426b | 725 | } |
6c95b8df PA |
726 | else |
727 | { | |
728 | struct inferior *inf; | |
2277426b | 729 | |
6c95b8df PA |
730 | inf = find_inferior_id (num); |
731 | set_current_inferior (inf); | |
732 | switch_to_thread (null_ptid); | |
733 | set_current_program_space (inf->pspace); | |
734 | } | |
2277426b | 735 | |
6c95b8df | 736 | if (inf->pid != 0 && is_running (inferior_ptid)) |
2277426b | 737 | ui_out_text (uiout, "(running)\n"); |
6c95b8df | 738 | else if (inf->pid != 0) |
2277426b PA |
739 | { |
740 | ui_out_text (uiout, "\n"); | |
741 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
742 | } | |
743 | } | |
744 | ||
b77209e0 PA |
745 | /* Print information about currently known inferiors. */ |
746 | ||
747 | static void | |
2277426b | 748 | info_inferiors_command (char *args, int from_tty) |
b77209e0 | 749 | { |
c82c0b55 | 750 | print_inferior (uiout, args); |
b77209e0 PA |
751 | } |
752 | ||
6c95b8df PA |
753 | /* remove-inferior ID */ |
754 | ||
755 | void | |
756 | remove_inferior_command (char *args, int from_tty) | |
757 | { | |
758 | int num; | |
759 | struct inferior *inf; | |
760 | ||
af624141 MS |
761 | if (args == NULL || *args == '\0') |
762 | error (_("Requires an argument (inferior id(s) to remove)")); | |
6c95b8df | 763 | |
af624141 MS |
764 | while (*args != '\0') |
765 | { | |
766 | num = get_number_or_range (&args); | |
767 | inf = find_inferior_id (num); | |
6c95b8df | 768 | |
af624141 MS |
769 | if (inf == NULL) |
770 | { | |
771 | warning (_("Inferior ID %d not known."), num); | |
772 | continue; | |
773 | } | |
774 | ||
775 | if (inf == current_inferior ()) | |
776 | { | |
777 | warning (_("Can not remove current symbol inferior %d."), num); | |
778 | continue; | |
779 | } | |
8fa067af | 780 | |
af624141 MS |
781 | if (inf->pid != 0) |
782 | { | |
783 | warning (_("Can not remove active inferior %d."), num); | |
784 | continue; | |
785 | } | |
6c95b8df | 786 | |
af624141 MS |
787 | delete_inferior_1 (inf, 1); |
788 | } | |
6c95b8df PA |
789 | } |
790 | ||
a79b8f6e VP |
791 | struct inferior * |
792 | add_inferior_with_spaces (void) | |
793 | { | |
794 | struct address_space *aspace; | |
795 | struct program_space *pspace; | |
796 | struct inferior *inf; | |
797 | ||
798 | /* If all inferiors share an address space on this system, this | |
799 | doesn't really return a new address space; otherwise, it | |
800 | really does. */ | |
801 | aspace = maybe_new_address_space (); | |
802 | pspace = add_program_space (aspace); | |
803 | inf = add_inferior (0); | |
804 | inf->pspace = pspace; | |
805 | inf->aspace = pspace->aspace; | |
806 | ||
807 | return inf; | |
808 | } | |
6c95b8df PA |
809 | |
810 | /* add-inferior [-copies N] [-exec FILENAME] */ | |
811 | ||
812 | void | |
813 | add_inferior_command (char *args, int from_tty) | |
814 | { | |
815 | int i, copies = 1; | |
816 | char *exec = NULL; | |
817 | char **argv; | |
818 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
819 | ||
820 | if (args) | |
821 | { | |
822 | argv = gdb_buildargv (args); | |
823 | make_cleanup_freeargv (argv); | |
824 | ||
825 | for (; *argv != NULL; argv++) | |
826 | { | |
827 | if (**argv == '-') | |
828 | { | |
829 | if (strcmp (*argv, "-copies") == 0) | |
830 | { | |
831 | ++argv; | |
832 | if (!*argv) | |
833 | error (_("No argument to -copies")); | |
834 | copies = parse_and_eval_long (*argv); | |
835 | } | |
836 | else if (strcmp (*argv, "-exec") == 0) | |
837 | { | |
838 | ++argv; | |
839 | if (!*argv) | |
840 | error (_("No argument to -exec")); | |
841 | exec = *argv; | |
842 | } | |
843 | } | |
844 | else | |
845 | error (_("Invalid argument")); | |
846 | } | |
847 | } | |
848 | ||
849 | save_current_space_and_thread (); | |
850 | ||
851 | for (i = 0; i < copies; ++i) | |
852 | { | |
a79b8f6e | 853 | struct inferior *inf = add_inferior_with_spaces (); |
6c95b8df PA |
854 | |
855 | printf_filtered (_("Added inferior %d\n"), inf->num); | |
856 | ||
857 | if (exec != NULL) | |
858 | { | |
859 | /* Switch over temporarily, while reading executable and | |
1777feb0 | 860 | symbols.q. */ |
a79b8f6e | 861 | set_current_program_space (inf->pspace); |
6c95b8df PA |
862 | set_current_inferior (inf); |
863 | switch_to_thread (null_ptid); | |
864 | ||
865 | exec_file_attach (exec, from_tty); | |
866 | symbol_file_add_main (exec, from_tty); | |
867 | } | |
868 | } | |
869 | ||
870 | do_cleanups (old_chain); | |
871 | } | |
872 | ||
873 | /* clone-inferior [-copies N] [ID] */ | |
874 | ||
875 | void | |
876 | clone_inferior_command (char *args, int from_tty) | |
877 | { | |
878 | int i, copies = 1; | |
879 | char **argv; | |
880 | struct inferior *orginf = NULL; | |
881 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
882 | ||
883 | if (args) | |
884 | { | |
885 | argv = gdb_buildargv (args); | |
886 | make_cleanup_freeargv (argv); | |
887 | ||
888 | for (; *argv != NULL; argv++) | |
889 | { | |
890 | if (**argv == '-') | |
891 | { | |
892 | if (strcmp (*argv, "-copies") == 0) | |
893 | { | |
894 | ++argv; | |
895 | if (!*argv) | |
896 | error (_("No argument to -copies")); | |
897 | copies = parse_and_eval_long (*argv); | |
898 | ||
899 | if (copies < 0) | |
900 | error (_("Invalid copies number")); | |
901 | } | |
902 | } | |
903 | else | |
904 | { | |
905 | if (orginf == NULL) | |
906 | { | |
907 | int num; | |
908 | ||
909 | /* The first non-option (-) argument specified the | |
910 | program space ID. */ | |
911 | num = parse_and_eval_long (*argv); | |
912 | orginf = find_inferior_id (num); | |
913 | ||
914 | if (orginf == NULL) | |
915 | error (_("Inferior ID %d not known."), num); | |
916 | continue; | |
917 | } | |
918 | else | |
919 | error (_("Invalid argument")); | |
920 | } | |
921 | } | |
922 | } | |
923 | ||
924 | /* If no inferior id was specified, then the user wants to clone the | |
925 | current inferior. */ | |
926 | if (orginf == NULL) | |
927 | orginf = current_inferior (); | |
928 | ||
929 | save_current_space_and_thread (); | |
930 | ||
931 | for (i = 0; i < copies; ++i) | |
932 | { | |
933 | struct address_space *aspace; | |
934 | struct program_space *pspace; | |
935 | struct inferior *inf; | |
936 | ||
937 | /* If all inferiors share an address space on this system, this | |
938 | doesn't really return a new address space; otherwise, it | |
939 | really does. */ | |
940 | aspace = maybe_new_address_space (); | |
941 | pspace = add_program_space (aspace); | |
942 | inf = add_inferior (0); | |
943 | inf->pspace = pspace; | |
944 | inf->aspace = pspace->aspace; | |
945 | ||
946 | printf_filtered (_("Added inferior %d.\n"), inf->num); | |
947 | ||
948 | set_current_inferior (inf); | |
949 | switch_to_thread (null_ptid); | |
950 | clone_program_space (pspace, orginf->pspace); | |
951 | } | |
952 | ||
953 | do_cleanups (old_chain); | |
954 | } | |
955 | ||
b77209e0 PA |
956 | /* Print notices when new inferiors are created and die. */ |
957 | static void | |
958 | show_print_inferior_events (struct ui_file *file, int from_tty, | |
959 | struct cmd_list_element *c, const char *value) | |
960 | { | |
961 | fprintf_filtered (file, _("Printing of inferior events is %s.\n"), value); | |
962 | } | |
963 | ||
6c95b8df PA |
964 | \f |
965 | ||
966 | /* Keep a registry of per-inferior data-pointers required by other GDB | |
967 | modules. */ | |
968 | ||
969 | struct inferior_data | |
970 | { | |
971 | unsigned index; | |
972 | void (*cleanup) (struct inferior *, void *); | |
973 | }; | |
974 | ||
975 | struct inferior_data_registration | |
976 | { | |
977 | struct inferior_data *data; | |
978 | struct inferior_data_registration *next; | |
979 | }; | |
980 | ||
981 | struct inferior_data_registry | |
982 | { | |
983 | struct inferior_data_registration *registrations; | |
984 | unsigned num_registrations; | |
985 | }; | |
986 | ||
987 | static struct inferior_data_registry inferior_data_registry | |
988 | = { NULL, 0 }; | |
989 | ||
990 | const struct inferior_data * | |
991 | register_inferior_data_with_cleanup | |
992 | (void (*cleanup) (struct inferior *, void *)) | |
993 | { | |
994 | struct inferior_data_registration **curr; | |
995 | ||
996 | /* Append new registration. */ | |
997 | for (curr = &inferior_data_registry.registrations; | |
998 | *curr != NULL; curr = &(*curr)->next); | |
999 | ||
1000 | *curr = XMALLOC (struct inferior_data_registration); | |
1001 | (*curr)->next = NULL; | |
1002 | (*curr)->data = XMALLOC (struct inferior_data); | |
1003 | (*curr)->data->index = inferior_data_registry.num_registrations++; | |
1004 | (*curr)->data->cleanup = cleanup; | |
1005 | ||
1006 | return (*curr)->data; | |
1007 | } | |
1008 | ||
1009 | const struct inferior_data * | |
1010 | register_inferior_data (void) | |
1011 | { | |
1012 | return register_inferior_data_with_cleanup (NULL); | |
1013 | } | |
1014 | ||
1015 | static void | |
1016 | inferior_alloc_data (struct inferior *inf) | |
1017 | { | |
1018 | gdb_assert (inf->data == NULL); | |
1019 | inf->num_data = inferior_data_registry.num_registrations; | |
1020 | inf->data = XCALLOC (inf->num_data, void *); | |
1021 | } | |
1022 | ||
1023 | static void | |
1024 | inferior_free_data (struct inferior *inf) | |
1025 | { | |
1026 | gdb_assert (inf->data != NULL); | |
1027 | clear_inferior_data (inf); | |
1028 | xfree (inf->data); | |
1029 | inf->data = NULL; | |
1030 | } | |
1031 | ||
b77209e0 | 1032 | void |
6c95b8df | 1033 | clear_inferior_data (struct inferior *inf) |
b77209e0 | 1034 | { |
6c95b8df PA |
1035 | struct inferior_data_registration *registration; |
1036 | int i; | |
1037 | ||
1038 | gdb_assert (inf->data != NULL); | |
1039 | ||
1040 | for (registration = inferior_data_registry.registrations, i = 0; | |
1041 | i < inf->num_data; | |
1042 | registration = registration->next, i++) | |
1043 | if (inf->data[i] != NULL && registration->data->cleanup) | |
1044 | registration->data->cleanup (inf, inf->data[i]); | |
1045 | ||
1046 | memset (inf->data, 0, inf->num_data * sizeof (void *)); | |
1047 | } | |
1048 | ||
1049 | void | |
1050 | set_inferior_data (struct inferior *inf, | |
1051 | const struct inferior_data *data, | |
1052 | void *value) | |
1053 | { | |
1054 | gdb_assert (data->index < inf->num_data); | |
1055 | inf->data[data->index] = value; | |
1056 | } | |
1057 | ||
1058 | void * | |
1059 | inferior_data (struct inferior *inf, const struct inferior_data *data) | |
1060 | { | |
1061 | gdb_assert (data->index < inf->num_data); | |
1062 | return inf->data[data->index]; | |
1063 | } | |
1064 | ||
1065 | void | |
1066 | initialize_inferiors (void) | |
1067 | { | |
1068 | /* There's always one inferior. Note that this function isn't an | |
1069 | automatic _initialize_foo function, since other _initialize_foo | |
1070 | routines may need to install their per-inferior data keys. We | |
1071 | can only allocate an inferior when all those modules have done | |
1072 | that. Do this after initialize_progspace, due to the | |
1073 | current_program_space reference. */ | |
1074 | current_inferior_ = add_inferior (0); | |
1075 | current_inferior_->pspace = current_program_space; | |
1076 | current_inferior_->aspace = current_program_space->aspace; | |
1077 | ||
c82c0b55 MS |
1078 | add_info ("inferiors", info_inferiors_command, |
1079 | _("IDs of specified inferiors (all inferiors if no argument).")); | |
b77209e0 | 1080 | |
6c95b8df PA |
1081 | add_com ("add-inferior", no_class, add_inferior_command, _("\ |
1082 | Add a new inferior.\n\ | |
1083 | Usage: add-inferior [-copies <N>] [-exec <FILENAME>]\n\ | |
af624141 | 1084 | N is the optional number of inferiors to add, default is 1.\n\ |
6c95b8df PA |
1085 | FILENAME is the file name of the executable to use\n\ |
1086 | as main program.")); | |
1087 | ||
af624141 MS |
1088 | add_com ("remove-inferiors", no_class, remove_inferior_command, _("\ |
1089 | Remove inferior ID (or list of IDs).\n\ | |
1090 | Usage: remove-inferiors ID...")); | |
6c95b8df PA |
1091 | |
1092 | add_com ("clone-inferior", no_class, clone_inferior_command, _("\ | |
1093 | Clone inferior ID.\n\ | |
1094 | Usage: clone-inferior [-copies <N>] [ID]\n\ | |
1095 | Add N copies of inferior ID. The new inferior has the same\n\ | |
1096 | executable loaded as the copied inferior. If -copies is not specified,\n\ | |
1097 | adds 1 copy. If ID is not specified, it is the current inferior\n\ | |
1098 | that is cloned.")); | |
2277426b | 1099 | |
af624141 MS |
1100 | add_cmd ("inferiors", class_run, detach_inferior_command, _("\ |
1101 | Detach from inferior ID (or list of IDS)."), | |
2277426b PA |
1102 | &detachlist); |
1103 | ||
af624141 MS |
1104 | add_cmd ("inferiors", class_run, kill_inferior_command, _("\ |
1105 | Kill inferior ID (or list of IDs)."), | |
2277426b PA |
1106 | &killlist); |
1107 | ||
1108 | add_cmd ("inferior", class_run, inferior_command, _("\ | |
1109 | Use this command to switch between inferiors.\n\ | |
1110 | The new inferior ID must be currently known."), | |
1111 | &cmdlist); | |
6c95b8df PA |
1112 | |
1113 | add_setshow_boolean_cmd ("inferior-events", no_class, | |
1114 | &print_inferior_events, _("\ | |
1115 | Set printing of inferior events (e.g., inferior start and exit)."), _("\ | |
1116 | Show printing of inferior events (e.g., inferior start and exit)."), NULL, | |
1117 | NULL, | |
1118 | show_print_inferior_events, | |
1119 | &setprintlist, &showprintlist); | |
1120 | ||
b77209e0 | 1121 | } |