1 /* Multi-process control for GDB, the GNU debugger.
3 Copyright (C) 2008, 2009 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
25 #include "gdbthread.h"
29 void _initialize_inferiors (void);
31 static struct inferior *inferior_list = NULL;
32 static int highest_inferior_num;
34 /* Print notices on inferior events (attach, detach, etc.), set with
35 `set print inferior-events'. */
36 static int print_inferior_events = 0;
39 current_inferior (void)
41 struct inferior *inf = find_inferior_pid (ptid_get_pid (inferior_ptid));
47 free_inferior (struct inferior *inf)
49 discard_all_inferior_continuations (inf);
55 init_inferior_list (void)
57 struct inferior *inf, *infnext;
59 highest_inferior_num = 0;
63 for (inf = inferior_list; inf; inf = infnext)
73 add_inferior_silent (int pid)
77 inf = xmalloc (sizeof (*inf));
78 memset (inf, 0, sizeof (*inf));
81 inf->stop_soon = NO_STOP_QUIETLY;
83 inf->num = ++highest_inferior_num;
84 inf->next = inferior_list;
91 add_inferior (int pid)
93 struct inferior *inf = add_inferior_silent (pid);
95 observer_notify_new_inferior (pid);
97 if (print_inferior_events)
98 printf_unfiltered (_("[New inferior %d]\n"), pid);
103 struct delete_thread_of_inferior_arg
110 delete_thread_of_inferior (struct thread_info *tp, void *data)
112 struct delete_thread_of_inferior_arg *arg = data;
114 if (ptid_get_pid (tp->ptid) == arg->pid)
117 delete_thread_silent (tp->ptid);
119 delete_thread (tp->ptid);
125 /* If SILENT then be quiet -- don't announce a inferior death, or the
126 exit of its threads. */
128 delete_inferior_1 (int pid, int silent)
130 struct inferior *inf, *infprev;
131 struct delete_thread_of_inferior_arg arg = { pid, silent };
135 for (inf = inferior_list; inf; infprev = inf, inf = inf->next)
143 infprev->next = inf->next;
145 inferior_list = inf->next;
152 iterate_over_threads (delete_thread_of_inferior, &arg);
154 observer_notify_inferior_exit (pid);
158 delete_inferior (int pid)
160 delete_inferior_1 (pid, 0);
162 if (print_inferior_events)
163 printf_unfiltered (_("[Inferior %d exited]\n"), pid);
167 delete_inferior_silent (int pid)
169 delete_inferior_1 (pid, 1);
173 detach_inferior (int pid)
175 delete_inferior_1 (pid, 1);
177 if (print_inferior_events)
178 printf_unfiltered (_("[Inferior %d detached]\n"), pid);
182 discard_all_inferiors (void)
184 struct inferior *inf, *infnext;
186 for (inf = inferior_list; inf; inf = infnext)
189 delete_inferior_silent (inf->pid);
193 static struct inferior *
194 find_inferior_id (int num)
196 struct inferior *inf;
198 for (inf = inferior_list; inf; inf = inf->next)
206 find_inferior_pid (int pid)
208 struct inferior *inf;
210 for (inf = inferior_list; inf; inf = inf->next)
218 iterate_over_inferiors (int (*callback) (struct inferior *, void *),
221 struct inferior *inf, *infnext;
223 for (inf = inferior_list; inf; inf = infnext)
226 if ((*callback) (inf, data))
234 valid_gdb_inferior_id (int num)
236 struct inferior *inf;
238 for (inf = inferior_list; inf; inf = inf->next)
246 pid_to_gdb_inferior_id (int pid)
248 struct inferior *inf;
250 for (inf = inferior_list; inf; inf = inf->next)
258 gdb_inferior_id_to_pid (int num)
260 struct inferior *inferior = find_inferior_id (num);
262 return inferior->pid;
268 in_inferior_list (int pid)
270 struct inferior *inf;
272 for (inf = inferior_list; inf; inf = inf->next)
280 have_inferiors (void)
282 return inferior_list != NULL;
285 /* Prints the list of inferiors and their details on UIOUT. This is a
286 version of 'info_inferior_command' suitable for use from MI.
288 If REQUESTED_INFERIOR is not -1, it's the GDB id of the inferior that
289 should be printed. Otherwise, all inferiors are printed. */
291 print_inferior (struct ui_out *uiout, int requested_inferior)
293 struct inferior *inf;
294 struct cleanup *old_chain;
296 old_chain = make_cleanup_ui_out_list_begin_end (uiout, "inferiors");
298 for (inf = inferior_list; inf; inf = inf->next)
300 struct cleanup *chain2;
302 if (requested_inferior != -1 && inf->num != requested_inferior)
305 chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
307 if (inf->pid == ptid_get_pid (inferior_ptid))
308 ui_out_text (uiout, "* ");
310 ui_out_text (uiout, " ");
312 ui_out_field_int (uiout, "id", inf->num);
313 ui_out_text (uiout, " ");
314 ui_out_field_int (uiout, "target-id", inf->pid);
316 ui_out_text (uiout, "\n");
317 do_cleanups (chain2);
320 do_cleanups (old_chain);
323 /* Print information about currently known inferiors. */
326 info_inferiors_command (char *arg, int from_tty)
328 print_inferior (uiout, -1);
331 /* Print notices when new inferiors are created and die. */
333 show_print_inferior_events (struct ui_file *file, int from_tty,
334 struct cmd_list_element *c, const char *value)
336 fprintf_filtered (file, _("Printing of inferior events is %s.\n"), value);
340 _initialize_inferiors (void)
342 add_info ("inferiors", info_inferiors_command,
343 _("IDs of currently known inferiors."));
345 add_setshow_boolean_cmd ("inferior-events", no_class,
346 &print_inferior_events, _("\
347 Set printing of inferior events (e.g., inferior start and exit)."), _("\
348 Show printing of inferior events (e.g., inferior start and exit)."), NULL,
350 show_print_inferior_events,
351 &setprintlist, &showprintlist);