Commit | Line | Data |
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b77209e0 PA |
1 | /* Multi-process control for GDB, the GNU debugger. |
2 | ||
0b302171 | 3 | Copyright (C) 2008-2012 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" |
be34f849 | 34 | #include "continuations.h" |
b77209e0 PA |
35 | |
36 | void _initialize_inferiors (void); | |
37 | ||
6c95b8df PA |
38 | static void inferior_alloc_data (struct inferior *inf); |
39 | static void inferior_free_data (struct inferior *inf); | |
40 | ||
41 | struct inferior *inferior_list = NULL; | |
b77209e0 PA |
42 | static int highest_inferior_num; |
43 | ||
44 | /* Print notices on inferior events (attach, detach, etc.), set with | |
45 | `set print inferior-events'. */ | |
46 | static int print_inferior_events = 0; | |
47 | ||
6c95b8df PA |
48 | /* The Current Inferior. */ |
49 | static struct inferior *current_inferior_ = NULL; | |
50 | ||
b77209e0 PA |
51 | struct inferior* |
52 | current_inferior (void) | |
53 | { | |
6c95b8df PA |
54 | return current_inferior_; |
55 | } | |
56 | ||
57 | void | |
58 | set_current_inferior (struct inferior *inf) | |
59 | { | |
60 | /* There's always an inferior. */ | |
61 | gdb_assert (inf != NULL); | |
62 | ||
63 | current_inferior_ = inf; | |
64 | } | |
65 | ||
66 | /* A cleanups callback, helper for save_current_program_space | |
67 | below. */ | |
68 | ||
69 | static void | |
70 | restore_inferior (void *arg) | |
71 | { | |
72 | struct inferior *saved_inferior = arg; | |
abbb1732 | 73 | |
6c95b8df PA |
74 | set_current_inferior (saved_inferior); |
75 | } | |
76 | ||
77 | /* Save the current program space so that it may be restored by a later | |
78 | call to do_cleanups. Returns the struct cleanup pointer needed for | |
79 | later doing the cleanup. */ | |
80 | ||
81 | struct cleanup * | |
82 | save_current_inferior (void) | |
83 | { | |
84 | struct cleanup *old_chain = make_cleanup (restore_inferior, | |
85 | current_inferior_); | |
abbb1732 | 86 | |
6c95b8df | 87 | return old_chain; |
b77209e0 PA |
88 | } |
89 | ||
90 | static void | |
91 | free_inferior (struct inferior *inf) | |
92 | { | |
e0ba6746 | 93 | discard_all_inferior_continuations (inf); |
6c95b8df | 94 | inferior_free_data (inf); |
3f81c18a VP |
95 | xfree (inf->args); |
96 | xfree (inf->terminal); | |
97 | free_environ (inf->environment); | |
b77209e0 PA |
98 | xfree (inf->private); |
99 | xfree (inf); | |
100 | } | |
101 | ||
102 | void | |
103 | init_inferior_list (void) | |
104 | { | |
105 | struct inferior *inf, *infnext; | |
106 | ||
107 | highest_inferior_num = 0; | |
108 | if (!inferior_list) | |
109 | return; | |
110 | ||
111 | for (inf = inferior_list; inf; inf = infnext) | |
112 | { | |
113 | infnext = inf->next; | |
114 | free_inferior (inf); | |
115 | } | |
116 | ||
117 | inferior_list = NULL; | |
118 | } | |
119 | ||
120 | struct inferior * | |
121 | add_inferior_silent (int pid) | |
122 | { | |
123 | struct inferior *inf; | |
124 | ||
125 | inf = xmalloc (sizeof (*inf)); | |
126 | memset (inf, 0, sizeof (*inf)); | |
127 | inf->pid = pid; | |
128 | ||
16c381f0 | 129 | inf->control.stop_soon = NO_STOP_QUIETLY; |
d6b48e9c | 130 | |
b77209e0 PA |
131 | inf->num = ++highest_inferior_num; |
132 | inf->next = inferior_list; | |
133 | inferior_list = inf; | |
134 | ||
3f81c18a VP |
135 | inf->environment = make_environ (); |
136 | init_environ (inf->environment); | |
137 | ||
6c95b8df PA |
138 | inferior_alloc_data (inf); |
139 | ||
a79b8f6e VP |
140 | observer_notify_inferior_added (inf); |
141 | ||
6c95b8df PA |
142 | if (pid != 0) |
143 | inferior_appeared (inf, pid); | |
a562dc8f | 144 | |
b77209e0 PA |
145 | return inf; |
146 | } | |
147 | ||
148 | struct inferior * | |
149 | add_inferior (int pid) | |
150 | { | |
151 | struct inferior *inf = add_inferior_silent (pid); | |
152 | ||
153 | if (print_inferior_events) | |
154 | printf_unfiltered (_("[New inferior %d]\n"), pid); | |
155 | ||
156 | return inf; | |
157 | } | |
158 | ||
159 | struct delete_thread_of_inferior_arg | |
160 | { | |
161 | int pid; | |
162 | int silent; | |
163 | }; | |
164 | ||
165 | static int | |
166 | delete_thread_of_inferior (struct thread_info *tp, void *data) | |
167 | { | |
168 | struct delete_thread_of_inferior_arg *arg = data; | |
169 | ||
170 | if (ptid_get_pid (tp->ptid) == arg->pid) | |
171 | { | |
172 | if (arg->silent) | |
173 | delete_thread_silent (tp->ptid); | |
174 | else | |
175 | delete_thread (tp->ptid); | |
176 | } | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
6c95b8df PA |
181 | void |
182 | delete_threads_of_inferior (int pid) | |
183 | { | |
184 | struct inferior *inf; | |
185 | struct delete_thread_of_inferior_arg arg; | |
186 | ||
187 | for (inf = inferior_list; inf; inf = inf->next) | |
188 | if (inf->pid == pid) | |
189 | break; | |
190 | ||
191 | if (!inf) | |
192 | return; | |
193 | ||
194 | arg.pid = pid; | |
195 | arg.silent = 1; | |
196 | ||
197 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
198 | } | |
199 | ||
b77209e0 PA |
200 | /* If SILENT then be quiet -- don't announce a inferior death, or the |
201 | exit of its threads. */ | |
6c95b8df | 202 | |
a79b8f6e | 203 | void |
6c95b8df | 204 | delete_inferior_1 (struct inferior *todel, int silent) |
b77209e0 PA |
205 | { |
206 | struct inferior *inf, *infprev; | |
6c95b8df | 207 | struct delete_thread_of_inferior_arg arg; |
b77209e0 PA |
208 | |
209 | infprev = NULL; | |
210 | ||
211 | for (inf = inferior_list; inf; infprev = inf, inf = inf->next) | |
6c95b8df | 212 | if (inf == todel) |
b77209e0 PA |
213 | break; |
214 | ||
215 | if (!inf) | |
216 | return; | |
217 | ||
6c95b8df | 218 | arg.pid = inf->pid; |
b77209e0 PA |
219 | arg.silent = silent; |
220 | ||
221 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
4a92f99b | 222 | |
7e1789f5 PA |
223 | if (infprev) |
224 | infprev->next = inf->next; | |
225 | else | |
226 | inferior_list = inf->next; | |
227 | ||
a79b8f6e VP |
228 | observer_notify_inferior_removed (inf); |
229 | ||
7e1789f5 | 230 | free_inferior (inf); |
b77209e0 PA |
231 | } |
232 | ||
233 | void | |
234 | delete_inferior (int pid) | |
235 | { | |
6c95b8df PA |
236 | struct inferior *inf = find_inferior_pid (pid); |
237 | ||
238 | delete_inferior_1 (inf, 0); | |
b77209e0 PA |
239 | |
240 | if (print_inferior_events) | |
241 | printf_unfiltered (_("[Inferior %d exited]\n"), pid); | |
242 | } | |
243 | ||
244 | void | |
245 | delete_inferior_silent (int pid) | |
246 | { | |
6c95b8df PA |
247 | struct inferior *inf = find_inferior_pid (pid); |
248 | ||
249 | delete_inferior_1 (inf, 1); | |
250 | } | |
251 | ||
252 | ||
253 | /* If SILENT then be quiet -- don't announce a inferior exit, or the | |
254 | exit of its threads. */ | |
255 | ||
256 | static void | |
257 | exit_inferior_1 (struct inferior *inftoex, int silent) | |
258 | { | |
259 | struct inferior *inf; | |
260 | struct delete_thread_of_inferior_arg arg; | |
261 | ||
262 | for (inf = inferior_list; inf; inf = inf->next) | |
263 | if (inf == inftoex) | |
264 | break; | |
265 | ||
266 | if (!inf) | |
267 | return; | |
268 | ||
269 | arg.pid = inf->pid; | |
270 | arg.silent = silent; | |
271 | ||
272 | iterate_over_threads (delete_thread_of_inferior, &arg); | |
273 | ||
274 | /* Notify the observers before removing the inferior from the list, | |
275 | so that the observers have a chance to look it up. */ | |
a79b8f6e | 276 | observer_notify_inferior_exit (inf); |
6c95b8df PA |
277 | |
278 | inf->pid = 0; | |
e714e1bf | 279 | inf->fake_pid_p = 0; |
6c95b8df PA |
280 | if (inf->vfork_parent != NULL) |
281 | { | |
282 | inf->vfork_parent->vfork_child = NULL; | |
283 | inf->vfork_parent = NULL; | |
284 | } | |
8cf64490 TT |
285 | |
286 | inf->has_exit_code = 0; | |
287 | inf->exit_code = 0; | |
6c95b8df PA |
288 | } |
289 | ||
290 | void | |
291 | exit_inferior (int pid) | |
292 | { | |
293 | struct inferior *inf = find_inferior_pid (pid); | |
abbb1732 | 294 | |
6c95b8df PA |
295 | exit_inferior_1 (inf, 0); |
296 | ||
297 | if (print_inferior_events) | |
298 | printf_unfiltered (_("[Inferior %d exited]\n"), pid); | |
299 | } | |
300 | ||
301 | void | |
302 | exit_inferior_silent (int pid) | |
303 | { | |
304 | struct inferior *inf = find_inferior_pid (pid); | |
abbb1732 | 305 | |
6c95b8df PA |
306 | exit_inferior_1 (inf, 1); |
307 | } | |
308 | ||
309 | void | |
310 | exit_inferior_num_silent (int num) | |
311 | { | |
312 | struct inferior *inf = find_inferior_id (num); | |
313 | ||
314 | exit_inferior_1 (inf, 1); | |
b77209e0 PA |
315 | } |
316 | ||
317 | void | |
318 | detach_inferior (int pid) | |
319 | { | |
6c95b8df | 320 | struct inferior *inf = find_inferior_pid (pid); |
abbb1732 | 321 | |
6c95b8df | 322 | exit_inferior_1 (inf, 1); |
b77209e0 PA |
323 | |
324 | if (print_inferior_events) | |
325 | printf_unfiltered (_("[Inferior %d detached]\n"), pid); | |
326 | } | |
327 | ||
6c95b8df PA |
328 | void |
329 | inferior_appeared (struct inferior *inf, int pid) | |
330 | { | |
331 | inf->pid = pid; | |
332 | ||
a79b8f6e | 333 | observer_notify_inferior_appeared (inf); |
6c95b8df PA |
334 | } |
335 | ||
82f73884 PA |
336 | void |
337 | discard_all_inferiors (void) | |
338 | { | |
6c95b8df | 339 | struct inferior *inf; |
82f73884 | 340 | |
6c95b8df | 341 | for (inf = inferior_list; inf; inf = inf->next) |
82f73884 | 342 | { |
6c95b8df PA |
343 | if (inf->pid != 0) |
344 | exit_inferior_silent (inf->pid); | |
82f73884 PA |
345 | } |
346 | } | |
347 | ||
6c95b8df | 348 | struct inferior * |
b77209e0 PA |
349 | find_inferior_id (int num) |
350 | { | |
351 | struct inferior *inf; | |
352 | ||
353 | for (inf = inferior_list; inf; inf = inf->next) | |
354 | if (inf->num == num) | |
355 | return inf; | |
356 | ||
357 | return NULL; | |
358 | } | |
359 | ||
360 | struct inferior * | |
361 | find_inferior_pid (int pid) | |
362 | { | |
363 | struct inferior *inf; | |
364 | ||
6c95b8df PA |
365 | /* Looking for inferior pid == 0 is always wrong, and indicative of |
366 | a bug somewhere else. There may be more than one with pid == 0, | |
367 | for instance. */ | |
368 | gdb_assert (pid != 0); | |
369 | ||
b77209e0 PA |
370 | for (inf = inferior_list; inf; inf = inf->next) |
371 | if (inf->pid == pid) | |
372 | return inf; | |
373 | ||
374 | return NULL; | |
375 | } | |
376 | ||
6c95b8df PA |
377 | /* Find an inferior bound to PSPACE. */ |
378 | ||
379 | struct inferior * | |
380 | find_inferior_for_program_space (struct program_space *pspace) | |
381 | { | |
382 | struct inferior *inf; | |
383 | ||
384 | for (inf = inferior_list; inf != NULL; inf = inf->next) | |
385 | { | |
386 | if (inf->pspace == pspace) | |
387 | return inf; | |
388 | } | |
389 | ||
390 | return NULL; | |
391 | } | |
392 | ||
b77209e0 PA |
393 | struct inferior * |
394 | iterate_over_inferiors (int (*callback) (struct inferior *, void *), | |
395 | void *data) | |
396 | { | |
397 | struct inferior *inf, *infnext; | |
398 | ||
399 | for (inf = inferior_list; inf; inf = infnext) | |
400 | { | |
401 | infnext = inf->next; | |
402 | if ((*callback) (inf, data)) | |
403 | return inf; | |
404 | } | |
405 | ||
406 | return NULL; | |
407 | } | |
408 | ||
409 | int | |
410 | valid_gdb_inferior_id (int num) | |
411 | { | |
412 | struct inferior *inf; | |
413 | ||
414 | for (inf = inferior_list; inf; inf = inf->next) | |
415 | if (inf->num == num) | |
416 | return 1; | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | int | |
422 | pid_to_gdb_inferior_id (int pid) | |
423 | { | |
424 | struct inferior *inf; | |
425 | ||
426 | for (inf = inferior_list; inf; inf = inf->next) | |
427 | if (inf->pid == pid) | |
428 | return inf->num; | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
433 | int | |
434 | gdb_inferior_id_to_pid (int num) | |
435 | { | |
436 | struct inferior *inferior = find_inferior_id (num); | |
437 | if (inferior) | |
438 | return inferior->pid; | |
439 | else | |
440 | return -1; | |
441 | } | |
442 | ||
443 | int | |
444 | in_inferior_list (int pid) | |
445 | { | |
446 | struct inferior *inf; | |
447 | ||
448 | for (inf = inferior_list; inf; inf = inf->next) | |
449 | if (inf->pid == pid) | |
450 | return 1; | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | int | |
456 | have_inferiors (void) | |
457 | { | |
6c95b8df PA |
458 | struct inferior *inf; |
459 | ||
460 | for (inf = inferior_list; inf; inf = inf->next) | |
461 | if (inf->pid != 0) | |
462 | return 1; | |
463 | ||
464 | return 0; | |
b77209e0 PA |
465 | } |
466 | ||
c35b1492 PA |
467 | int |
468 | have_live_inferiors (void) | |
469 | { | |
cd2effb2 | 470 | struct inferior *inf; |
6c95b8df | 471 | |
cd2effb2 JK |
472 | for (inf = inferior_list; inf; inf = inf->next) |
473 | if (inf->pid != 0) | |
474 | { | |
475 | struct thread_info *tp; | |
476 | ||
477 | tp = any_thread_of_process (inf->pid); | |
aeaec162 TT |
478 | if (tp && target_has_execution_1 (tp->ptid)) |
479 | break; | |
cd2effb2 JK |
480 | } |
481 | ||
cd2effb2 | 482 | return inf != NULL; |
6c95b8df PA |
483 | } |
484 | ||
485 | /* Prune away automatically added program spaces that aren't required | |
486 | anymore. */ | |
487 | ||
488 | void | |
489 | prune_inferiors (void) | |
490 | { | |
491 | struct inferior *ss, **ss_link; | |
492 | struct inferior *current = current_inferior (); | |
493 | ||
494 | ss = inferior_list; | |
495 | ss_link = &inferior_list; | |
496 | while (ss) | |
497 | { | |
498 | if (ss == current | |
499 | || !ss->removable | |
500 | || ss->pid != 0) | |
501 | { | |
502 | ss_link = &ss->next; | |
503 | ss = *ss_link; | |
504 | continue; | |
505 | } | |
506 | ||
507 | *ss_link = ss->next; | |
508 | delete_inferior_1 (ss, 1); | |
509 | ss = *ss_link; | |
510 | } | |
511 | ||
512 | prune_program_spaces (); | |
513 | } | |
514 | ||
515 | /* Simply returns the count of inferiors. */ | |
516 | ||
517 | int | |
518 | number_of_inferiors (void) | |
519 | { | |
520 | struct inferior *inf; | |
521 | int count = 0; | |
522 | ||
523 | for (inf = inferior_list; inf != NULL; inf = inf->next) | |
524 | count++; | |
525 | ||
526 | return count; | |
c35b1492 PA |
527 | } |
528 | ||
b77209e0 PA |
529 | /* Prints the list of inferiors and their details on UIOUT. This is a |
530 | version of 'info_inferior_command' suitable for use from MI. | |
531 | ||
c82c0b55 MS |
532 | If REQUESTED_INFERIORS is not NULL, it's a list of GDB ids of the |
533 | inferiors that should be printed. Otherwise, all inferiors are | |
534 | printed. */ | |
535 | ||
536 | static void | |
537 | print_inferior (struct ui_out *uiout, char *requested_inferiors) | |
b77209e0 PA |
538 | { |
539 | struct inferior *inf; | |
540 | struct cleanup *old_chain; | |
8bb318c6 | 541 | int inf_count = 0; |
b77209e0 | 542 | |
8bb318c6 TT |
543 | /* Compute number of inferiors we will print. */ |
544 | for (inf = inferior_list; inf; inf = inf->next) | |
545 | { | |
c82c0b55 | 546 | if (!number_is_in_list (requested_inferiors, inf->num)) |
8bb318c6 TT |
547 | continue; |
548 | ||
549 | ++inf_count; | |
550 | } | |
551 | ||
552 | if (inf_count == 0) | |
553 | { | |
554 | ui_out_message (uiout, 0, "No inferiors.\n"); | |
555 | return; | |
556 | } | |
557 | ||
6c95b8df | 558 | old_chain = make_cleanup_ui_out_table_begin_end (uiout, 4, inf_count, |
8bb318c6 | 559 | "inferiors"); |
3a1ff0b6 PA |
560 | ui_out_table_header (uiout, 1, ui_left, "current", ""); |
561 | ui_out_table_header (uiout, 4, ui_left, "number", "Num"); | |
562 | ui_out_table_header (uiout, 17, ui_left, "target-id", "Description"); | |
6c95b8df | 563 | ui_out_table_header (uiout, 17, ui_left, "exec", "Executable"); |
b77209e0 | 564 | |
6c95b8df | 565 | ui_out_table_body (uiout); |
b77209e0 PA |
566 | for (inf = inferior_list; inf; inf = inf->next) |
567 | { | |
568 | struct cleanup *chain2; | |
569 | ||
c82c0b55 | 570 | if (!number_is_in_list (requested_inferiors, inf->num)) |
b77209e0 PA |
571 | continue; |
572 | ||
573 | chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
574 | ||
6c95b8df | 575 | if (inf == current_inferior ()) |
8bb318c6 | 576 | ui_out_field_string (uiout, "current", "*"); |
b77209e0 | 577 | else |
8bb318c6 | 578 | ui_out_field_skip (uiout, "current"); |
b77209e0 | 579 | |
3a1ff0b6 | 580 | ui_out_field_int (uiout, "number", inf->num); |
6c95b8df PA |
581 | |
582 | if (inf->pid) | |
583 | ui_out_field_string (uiout, "target-id", | |
584 | target_pid_to_str (pid_to_ptid (inf->pid))); | |
585 | else | |
586 | ui_out_field_string (uiout, "target-id", "<null>"); | |
587 | ||
588 | if (inf->pspace->ebfd) | |
589 | ui_out_field_string (uiout, "exec", | |
590 | bfd_get_filename (inf->pspace->ebfd)); | |
591 | else | |
592 | ui_out_field_skip (uiout, "exec"); | |
593 | ||
594 | /* Print extra info that isn't really fit to always present in | |
595 | tabular form. Currently we print the vfork parent/child | |
596 | relationships, if any. */ | |
597 | if (inf->vfork_parent) | |
598 | { | |
599 | ui_out_text (uiout, _("\n\tis vfork child of inferior ")); | |
600 | ui_out_field_int (uiout, "vfork-parent", inf->vfork_parent->num); | |
601 | } | |
602 | if (inf->vfork_child) | |
603 | { | |
604 | ui_out_text (uiout, _("\n\tis vfork parent of inferior ")); | |
605 | ui_out_field_int (uiout, "vfork-child", inf->vfork_child->num); | |
606 | } | |
b77209e0 PA |
607 | |
608 | ui_out_text (uiout, "\n"); | |
609 | do_cleanups (chain2); | |
610 | } | |
611 | ||
612 | do_cleanups (old_chain); | |
613 | } | |
614 | ||
2277426b PA |
615 | static void |
616 | detach_inferior_command (char *args, int from_tty) | |
617 | { | |
618 | int num, pid; | |
619 | struct thread_info *tp; | |
197f0a60 | 620 | struct get_number_or_range_state state; |
2277426b PA |
621 | |
622 | if (!args || !*args) | |
af624141 | 623 | error (_("Requires argument (inferior id(s) to detach)")); |
2277426b | 624 | |
197f0a60 TT |
625 | init_number_or_range (&state, args); |
626 | while (!state.finished) | |
af624141 | 627 | { |
197f0a60 | 628 | num = get_number_or_range (&state); |
2277426b | 629 | |
af624141 MS |
630 | if (!valid_gdb_inferior_id (num)) |
631 | { | |
632 | warning (_("Inferior ID %d not known."), num); | |
633 | continue; | |
634 | } | |
2277426b | 635 | |
af624141 | 636 | pid = gdb_inferior_id_to_pid (num); |
2277426b | 637 | |
af624141 MS |
638 | tp = any_thread_of_process (pid); |
639 | if (!tp) | |
640 | { | |
641 | warning (_("Inferior ID %d has no threads."), num); | |
642 | continue; | |
643 | } | |
2277426b | 644 | |
af624141 | 645 | switch_to_thread (tp->ptid); |
2277426b | 646 | |
af624141 MS |
647 | detach_command (NULL, from_tty); |
648 | } | |
2277426b PA |
649 | } |
650 | ||
651 | static void | |
652 | kill_inferior_command (char *args, int from_tty) | |
653 | { | |
654 | int num, pid; | |
655 | struct thread_info *tp; | |
197f0a60 | 656 | struct get_number_or_range_state state; |
2277426b PA |
657 | |
658 | if (!args || !*args) | |
af624141 | 659 | error (_("Requires argument (inferior id(s) to kill)")); |
2277426b | 660 | |
197f0a60 TT |
661 | init_number_or_range (&state, args); |
662 | while (!state.finished) | |
af624141 | 663 | { |
197f0a60 | 664 | num = get_number_or_range (&state); |
2277426b | 665 | |
af624141 MS |
666 | if (!valid_gdb_inferior_id (num)) |
667 | { | |
668 | warning (_("Inferior ID %d not known."), num); | |
669 | continue; | |
670 | } | |
2277426b | 671 | |
af624141 | 672 | pid = gdb_inferior_id_to_pid (num); |
2277426b | 673 | |
af624141 MS |
674 | tp = any_thread_of_process (pid); |
675 | if (!tp) | |
676 | { | |
677 | warning (_("Inferior ID %d has no threads."), num); | |
678 | continue; | |
679 | } | |
2277426b | 680 | |
af624141 | 681 | switch_to_thread (tp->ptid); |
2277426b | 682 | |
af624141 MS |
683 | target_kill (); |
684 | } | |
2277426b PA |
685 | |
686 | bfd_cache_close_all (); | |
687 | } | |
688 | ||
689 | static void | |
690 | inferior_command (char *args, int from_tty) | |
691 | { | |
6c95b8df PA |
692 | struct inferior *inf; |
693 | int num; | |
2277426b PA |
694 | |
695 | num = parse_and_eval_long (args); | |
696 | ||
6c95b8df PA |
697 | inf = find_inferior_id (num); |
698 | if (inf == NULL) | |
2277426b PA |
699 | error (_("Inferior ID %d not known."), num); |
700 | ||
6c95b8df PA |
701 | printf_filtered (_("[Switching to inferior %d [%s] (%s)]\n"), |
702 | inf->num, | |
703 | target_pid_to_str (pid_to_ptid (inf->pid)), | |
704 | (inf->pspace->ebfd | |
705 | ? bfd_get_filename (inf->pspace->ebfd) | |
706 | : _("<noexec>"))); | |
2277426b | 707 | |
6c95b8df | 708 | if (inf->pid != 0) |
2277426b | 709 | { |
6c95b8df PA |
710 | if (inf->pid != ptid_get_pid (inferior_ptid)) |
711 | { | |
712 | struct thread_info *tp; | |
2277426b | 713 | |
6c95b8df PA |
714 | tp = any_thread_of_process (inf->pid); |
715 | if (!tp) | |
716 | error (_("Inferior has no threads.")); | |
2277426b | 717 | |
6c95b8df PA |
718 | switch_to_thread (tp->ptid); |
719 | } | |
720 | ||
721 | printf_filtered (_("[Switching to thread %d (%s)] "), | |
722 | pid_to_thread_id (inferior_ptid), | |
723 | target_pid_to_str (inferior_ptid)); | |
2277426b | 724 | } |
6c95b8df PA |
725 | else |
726 | { | |
727 | struct inferior *inf; | |
2277426b | 728 | |
6c95b8df PA |
729 | inf = find_inferior_id (num); |
730 | set_current_inferior (inf); | |
731 | switch_to_thread (null_ptid); | |
732 | set_current_program_space (inf->pspace); | |
733 | } | |
2277426b | 734 | |
6c95b8df | 735 | if (inf->pid != 0 && is_running (inferior_ptid)) |
79a45e25 | 736 | ui_out_text (current_uiout, "(running)\n"); |
6c95b8df | 737 | else if (inf->pid != 0) |
2277426b | 738 | { |
79a45e25 | 739 | ui_out_text (current_uiout, "\n"); |
2277426b PA |
740 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); |
741 | } | |
742 | } | |
743 | ||
b77209e0 PA |
744 | /* Print information about currently known inferiors. */ |
745 | ||
746 | static void | |
2277426b | 747 | info_inferiors_command (char *args, int from_tty) |
b77209e0 | 748 | { |
79a45e25 | 749 | print_inferior (current_uiout, args); |
b77209e0 PA |
750 | } |
751 | ||
6c95b8df PA |
752 | /* remove-inferior ID */ |
753 | ||
754 | void | |
755 | remove_inferior_command (char *args, int from_tty) | |
756 | { | |
757 | int num; | |
758 | struct inferior *inf; | |
197f0a60 | 759 | struct get_number_or_range_state state; |
6c95b8df | 760 | |
af624141 MS |
761 | if (args == NULL || *args == '\0') |
762 | error (_("Requires an argument (inferior id(s) to remove)")); | |
6c95b8df | 763 | |
197f0a60 TT |
764 | init_number_or_range (&state, args); |
765 | while (!state.finished) | |
af624141 | 766 | { |
197f0a60 | 767 | num = get_number_or_range (&state); |
af624141 | 768 | inf = find_inferior_id (num); |
6c95b8df | 769 | |
af624141 MS |
770 | if (inf == NULL) |
771 | { | |
772 | warning (_("Inferior ID %d not known."), num); | |
773 | continue; | |
774 | } | |
775 | ||
776 | if (inf == current_inferior ()) | |
777 | { | |
778 | warning (_("Can not remove current symbol inferior %d."), num); | |
779 | continue; | |
780 | } | |
8fa067af | 781 | |
af624141 MS |
782 | if (inf->pid != 0) |
783 | { | |
784 | warning (_("Can not remove active inferior %d."), num); | |
785 | continue; | |
786 | } | |
6c95b8df | 787 | |
af624141 MS |
788 | delete_inferior_1 (inf, 1); |
789 | } | |
6c95b8df PA |
790 | } |
791 | ||
a79b8f6e VP |
792 | struct inferior * |
793 | add_inferior_with_spaces (void) | |
794 | { | |
795 | struct address_space *aspace; | |
796 | struct program_space *pspace; | |
797 | struct inferior *inf; | |
798 | ||
799 | /* If all inferiors share an address space on this system, this | |
800 | doesn't really return a new address space; otherwise, it | |
801 | really does. */ | |
802 | aspace = maybe_new_address_space (); | |
803 | pspace = add_program_space (aspace); | |
804 | inf = add_inferior (0); | |
805 | inf->pspace = pspace; | |
806 | inf->aspace = pspace->aspace; | |
807 | ||
808 | return inf; | |
809 | } | |
6c95b8df PA |
810 | |
811 | /* add-inferior [-copies N] [-exec FILENAME] */ | |
812 | ||
813 | void | |
814 | add_inferior_command (char *args, int from_tty) | |
815 | { | |
816 | int i, copies = 1; | |
817 | char *exec = NULL; | |
818 | char **argv; | |
819 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
820 | ||
821 | if (args) | |
822 | { | |
823 | argv = gdb_buildargv (args); | |
824 | make_cleanup_freeargv (argv); | |
825 | ||
826 | for (; *argv != NULL; argv++) | |
827 | { | |
828 | if (**argv == '-') | |
829 | { | |
830 | if (strcmp (*argv, "-copies") == 0) | |
831 | { | |
832 | ++argv; | |
833 | if (!*argv) | |
834 | error (_("No argument to -copies")); | |
835 | copies = parse_and_eval_long (*argv); | |
836 | } | |
837 | else if (strcmp (*argv, "-exec") == 0) | |
838 | { | |
839 | ++argv; | |
840 | if (!*argv) | |
841 | error (_("No argument to -exec")); | |
842 | exec = *argv; | |
843 | } | |
844 | } | |
845 | else | |
846 | error (_("Invalid argument")); | |
847 | } | |
848 | } | |
849 | ||
850 | save_current_space_and_thread (); | |
851 | ||
852 | for (i = 0; i < copies; ++i) | |
853 | { | |
a79b8f6e | 854 | struct inferior *inf = add_inferior_with_spaces (); |
6c95b8df PA |
855 | |
856 | printf_filtered (_("Added inferior %d\n"), inf->num); | |
857 | ||
858 | if (exec != NULL) | |
859 | { | |
860 | /* Switch over temporarily, while reading executable and | |
1777feb0 | 861 | symbols.q. */ |
a79b8f6e | 862 | set_current_program_space (inf->pspace); |
6c95b8df PA |
863 | set_current_inferior (inf); |
864 | switch_to_thread (null_ptid); | |
865 | ||
866 | exec_file_attach (exec, from_tty); | |
867 | symbol_file_add_main (exec, from_tty); | |
868 | } | |
869 | } | |
870 | ||
871 | do_cleanups (old_chain); | |
872 | } | |
873 | ||
874 | /* clone-inferior [-copies N] [ID] */ | |
875 | ||
876 | void | |
877 | clone_inferior_command (char *args, int from_tty) | |
878 | { | |
879 | int i, copies = 1; | |
880 | char **argv; | |
881 | struct inferior *orginf = NULL; | |
882 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
883 | ||
884 | if (args) | |
885 | { | |
886 | argv = gdb_buildargv (args); | |
887 | make_cleanup_freeargv (argv); | |
888 | ||
889 | for (; *argv != NULL; argv++) | |
890 | { | |
891 | if (**argv == '-') | |
892 | { | |
893 | if (strcmp (*argv, "-copies") == 0) | |
894 | { | |
895 | ++argv; | |
896 | if (!*argv) | |
897 | error (_("No argument to -copies")); | |
898 | copies = parse_and_eval_long (*argv); | |
899 | ||
900 | if (copies < 0) | |
901 | error (_("Invalid copies number")); | |
902 | } | |
903 | } | |
904 | else | |
905 | { | |
906 | if (orginf == NULL) | |
907 | { | |
908 | int num; | |
909 | ||
910 | /* The first non-option (-) argument specified the | |
911 | program space ID. */ | |
912 | num = parse_and_eval_long (*argv); | |
913 | orginf = find_inferior_id (num); | |
914 | ||
915 | if (orginf == NULL) | |
916 | error (_("Inferior ID %d not known."), num); | |
917 | continue; | |
918 | } | |
919 | else | |
920 | error (_("Invalid argument")); | |
921 | } | |
922 | } | |
923 | } | |
924 | ||
925 | /* If no inferior id was specified, then the user wants to clone the | |
926 | current inferior. */ | |
927 | if (orginf == NULL) | |
928 | orginf = current_inferior (); | |
929 | ||
930 | save_current_space_and_thread (); | |
931 | ||
932 | for (i = 0; i < copies; ++i) | |
933 | { | |
934 | struct address_space *aspace; | |
935 | struct program_space *pspace; | |
936 | struct inferior *inf; | |
937 | ||
938 | /* If all inferiors share an address space on this system, this | |
939 | doesn't really return a new address space; otherwise, it | |
940 | really does. */ | |
941 | aspace = maybe_new_address_space (); | |
942 | pspace = add_program_space (aspace); | |
943 | inf = add_inferior (0); | |
944 | inf->pspace = pspace; | |
945 | inf->aspace = pspace->aspace; | |
946 | ||
947 | printf_filtered (_("Added inferior %d.\n"), inf->num); | |
948 | ||
949 | set_current_inferior (inf); | |
950 | switch_to_thread (null_ptid); | |
951 | clone_program_space (pspace, orginf->pspace); | |
952 | } | |
953 | ||
954 | do_cleanups (old_chain); | |
955 | } | |
956 | ||
b77209e0 PA |
957 | /* Print notices when new inferiors are created and die. */ |
958 | static void | |
959 | show_print_inferior_events (struct ui_file *file, int from_tty, | |
960 | struct cmd_list_element *c, const char *value) | |
961 | { | |
962 | fprintf_filtered (file, _("Printing of inferior events is %s.\n"), value); | |
963 | } | |
964 | ||
6c95b8df PA |
965 | \f |
966 | ||
967 | /* Keep a registry of per-inferior data-pointers required by other GDB | |
968 | modules. */ | |
969 | ||
970 | struct inferior_data | |
971 | { | |
972 | unsigned index; | |
973 | void (*cleanup) (struct inferior *, void *); | |
974 | }; | |
975 | ||
976 | struct inferior_data_registration | |
977 | { | |
978 | struct inferior_data *data; | |
979 | struct inferior_data_registration *next; | |
980 | }; | |
981 | ||
982 | struct inferior_data_registry | |
983 | { | |
984 | struct inferior_data_registration *registrations; | |
985 | unsigned num_registrations; | |
986 | }; | |
987 | ||
988 | static struct inferior_data_registry inferior_data_registry | |
989 | = { NULL, 0 }; | |
990 | ||
991 | const struct inferior_data * | |
992 | register_inferior_data_with_cleanup | |
993 | (void (*cleanup) (struct inferior *, void *)) | |
994 | { | |
995 | struct inferior_data_registration **curr; | |
996 | ||
997 | /* Append new registration. */ | |
998 | for (curr = &inferior_data_registry.registrations; | |
999 | *curr != NULL; curr = &(*curr)->next); | |
1000 | ||
1001 | *curr = XMALLOC (struct inferior_data_registration); | |
1002 | (*curr)->next = NULL; | |
1003 | (*curr)->data = XMALLOC (struct inferior_data); | |
1004 | (*curr)->data->index = inferior_data_registry.num_registrations++; | |
1005 | (*curr)->data->cleanup = cleanup; | |
1006 | ||
1007 | return (*curr)->data; | |
1008 | } | |
1009 | ||
1010 | const struct inferior_data * | |
1011 | register_inferior_data (void) | |
1012 | { | |
1013 | return register_inferior_data_with_cleanup (NULL); | |
1014 | } | |
1015 | ||
1016 | static void | |
1017 | inferior_alloc_data (struct inferior *inf) | |
1018 | { | |
1019 | gdb_assert (inf->data == NULL); | |
1020 | inf->num_data = inferior_data_registry.num_registrations; | |
1021 | inf->data = XCALLOC (inf->num_data, void *); | |
1022 | } | |
1023 | ||
1024 | static void | |
1025 | inferior_free_data (struct inferior *inf) | |
1026 | { | |
1027 | gdb_assert (inf->data != NULL); | |
1028 | clear_inferior_data (inf); | |
1029 | xfree (inf->data); | |
1030 | inf->data = NULL; | |
1031 | } | |
1032 | ||
b77209e0 | 1033 | void |
6c95b8df | 1034 | clear_inferior_data (struct inferior *inf) |
b77209e0 | 1035 | { |
6c95b8df PA |
1036 | struct inferior_data_registration *registration; |
1037 | int i; | |
1038 | ||
1039 | gdb_assert (inf->data != NULL); | |
1040 | ||
1041 | for (registration = inferior_data_registry.registrations, i = 0; | |
1042 | i < inf->num_data; | |
1043 | registration = registration->next, i++) | |
1044 | if (inf->data[i] != NULL && registration->data->cleanup) | |
1045 | registration->data->cleanup (inf, inf->data[i]); | |
1046 | ||
1047 | memset (inf->data, 0, inf->num_data * sizeof (void *)); | |
1048 | } | |
1049 | ||
1050 | void | |
1051 | set_inferior_data (struct inferior *inf, | |
1052 | const struct inferior_data *data, | |
1053 | void *value) | |
1054 | { | |
1055 | gdb_assert (data->index < inf->num_data); | |
1056 | inf->data[data->index] = value; | |
1057 | } | |
1058 | ||
1059 | void * | |
1060 | inferior_data (struct inferior *inf, const struct inferior_data *data) | |
1061 | { | |
1062 | gdb_assert (data->index < inf->num_data); | |
1063 | return inf->data[data->index]; | |
1064 | } | |
1065 | ||
1066 | void | |
1067 | initialize_inferiors (void) | |
1068 | { | |
1069 | /* There's always one inferior. Note that this function isn't an | |
1070 | automatic _initialize_foo function, since other _initialize_foo | |
1071 | routines may need to install their per-inferior data keys. We | |
1072 | can only allocate an inferior when all those modules have done | |
1073 | that. Do this after initialize_progspace, due to the | |
1074 | current_program_space reference. */ | |
1075 | current_inferior_ = add_inferior (0); | |
1076 | current_inferior_->pspace = current_program_space; | |
1077 | current_inferior_->aspace = current_program_space->aspace; | |
1078 | ||
c82c0b55 MS |
1079 | add_info ("inferiors", info_inferiors_command, |
1080 | _("IDs of specified inferiors (all inferiors if no argument).")); | |
b77209e0 | 1081 | |
6c95b8df PA |
1082 | add_com ("add-inferior", no_class, add_inferior_command, _("\ |
1083 | Add a new inferior.\n\ | |
1084 | Usage: add-inferior [-copies <N>] [-exec <FILENAME>]\n\ | |
af624141 | 1085 | N is the optional number of inferiors to add, default is 1.\n\ |
6c95b8df PA |
1086 | FILENAME is the file name of the executable to use\n\ |
1087 | as main program.")); | |
1088 | ||
af624141 MS |
1089 | add_com ("remove-inferiors", no_class, remove_inferior_command, _("\ |
1090 | Remove inferior ID (or list of IDs).\n\ | |
1091 | Usage: remove-inferiors ID...")); | |
6c95b8df PA |
1092 | |
1093 | add_com ("clone-inferior", no_class, clone_inferior_command, _("\ | |
1094 | Clone inferior ID.\n\ | |
1095 | Usage: clone-inferior [-copies <N>] [ID]\n\ | |
1096 | Add N copies of inferior ID. The new inferior has the same\n\ | |
1097 | executable loaded as the copied inferior. If -copies is not specified,\n\ | |
1098 | adds 1 copy. If ID is not specified, it is the current inferior\n\ | |
1099 | that is cloned.")); | |
2277426b | 1100 | |
af624141 MS |
1101 | add_cmd ("inferiors", class_run, detach_inferior_command, _("\ |
1102 | Detach from inferior ID (or list of IDS)."), | |
2277426b PA |
1103 | &detachlist); |
1104 | ||
af624141 MS |
1105 | add_cmd ("inferiors", class_run, kill_inferior_command, _("\ |
1106 | Kill inferior ID (or list of IDs)."), | |
2277426b PA |
1107 | &killlist); |
1108 | ||
1109 | add_cmd ("inferior", class_run, inferior_command, _("\ | |
1110 | Use this command to switch between inferiors.\n\ | |
1111 | The new inferior ID must be currently known."), | |
1112 | &cmdlist); | |
6c95b8df PA |
1113 | |
1114 | add_setshow_boolean_cmd ("inferior-events", no_class, | |
1115 | &print_inferior_events, _("\ | |
1116 | Set printing of inferior events (e.g., inferior start and exit)."), _("\ | |
1117 | Show printing of inferior events (e.g., inferior start and exit)."), NULL, | |
1118 | NULL, | |
1119 | show_print_inferior_events, | |
1120 | &setprintlist, &showprintlist); | |
1121 | ||
b77209e0 | 1122 | } |