1 /* Multi-process control for GDB, the GNU debugger.
3 Copyright (C) 2008 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"
28 void _initialize_inferiors (void);
30 static struct inferior *inferior_list = NULL;
31 static int highest_inferior_num;
33 /* Print notices on inferior events (attach, detach, etc.), set with
34 `set print inferior-events'. */
35 static int print_inferior_events = 0;
38 current_inferior (void)
40 struct inferior *inf = find_inferior_pid (ptid_get_pid (inferior_ptid));
46 free_inferior (struct inferior *inf)
53 init_inferior_list (void)
55 struct inferior *inf, *infnext;
57 highest_inferior_num = 0;
61 for (inf = inferior_list; inf; inf = infnext)
71 add_inferior_silent (int pid)
75 inf = xmalloc (sizeof (*inf));
76 memset (inf, 0, sizeof (*inf));
79 inf->num = ++highest_inferior_num;
80 inf->next = inferior_list;
87 add_inferior (int pid)
89 struct inferior *inf = add_inferior_silent (pid);
91 if (print_inferior_events)
92 printf_unfiltered (_("[New inferior %d]\n"), pid);
97 struct delete_thread_of_inferior_arg
104 delete_thread_of_inferior (struct thread_info *tp, void *data)
106 struct delete_thread_of_inferior_arg *arg = data;
108 if (ptid_get_pid (tp->ptid) == arg->pid)
111 delete_thread_silent (tp->ptid);
113 delete_thread (tp->ptid);
119 /* If SILENT then be quiet -- don't announce a inferior death, or the
120 exit of its threads. */
122 delete_inferior_1 (int pid, int silent)
124 struct inferior *inf, *infprev;
125 struct delete_thread_of_inferior_arg arg = { pid, silent };
129 for (inf = inferior_list; inf; infprev = inf, inf = inf->next)
137 infprev->next = inf->next;
139 inferior_list = inf->next;
146 iterate_over_threads (delete_thread_of_inferior, &arg);
150 delete_inferior (int pid)
152 delete_inferior_1 (pid, 0);
154 if (print_inferior_events)
155 printf_unfiltered (_("[Inferior %d exited]\n"), pid);
159 delete_inferior_silent (int pid)
161 delete_inferior_1 (pid, 1);
165 detach_inferior (int pid)
167 delete_inferior_1 (pid, 1);
169 if (print_inferior_events)
170 printf_unfiltered (_("[Inferior %d detached]\n"), pid);
174 discard_all_inferiors (void)
176 struct inferior *inf, *infnext;
178 for (inf = inferior_list; inf; inf = infnext)
181 delete_inferior_silent (inf->pid);
185 static struct inferior *
186 find_inferior_id (int num)
188 struct inferior *inf;
190 for (inf = inferior_list; inf; inf = inf->next)
198 find_inferior_pid (int pid)
200 struct inferior *inf;
202 for (inf = inferior_list; inf; inf = inf->next)
210 iterate_over_inferiors (int (*callback) (struct inferior *, void *),
213 struct inferior *inf, *infnext;
215 for (inf = inferior_list; inf; inf = infnext)
218 if ((*callback) (inf, data))
226 valid_gdb_inferior_id (int num)
228 struct inferior *inf;
230 for (inf = inferior_list; inf; inf = inf->next)
238 pid_to_gdb_inferior_id (int pid)
240 struct inferior *inf;
242 for (inf = inferior_list; inf; inf = inf->next)
250 gdb_inferior_id_to_pid (int num)
252 struct inferior *inferior = find_inferior_id (num);
254 return inferior->pid;
260 in_inferior_list (int pid)
262 struct inferior *inf;
264 for (inf = inferior_list; inf; inf = inf->next)
272 have_inferiors (void)
274 return inferior_list != NULL;
277 /* Prints the list of inferiors and their details on UIOUT. This is a
278 version of 'info_inferior_command' suitable for use from MI.
280 If REQUESTED_INFERIOR is not -1, it's the GDB id of the inferior that
281 should be printed. Otherwise, all inferiors are printed. */
283 print_inferior (struct ui_out *uiout, int requested_inferior)
285 struct inferior *inf;
286 struct cleanup *old_chain;
288 old_chain = make_cleanup_ui_out_list_begin_end (uiout, "inferiors");
290 for (inf = inferior_list; inf; inf = inf->next)
292 struct cleanup *chain2;
294 if (requested_inferior != -1 && inf->num != requested_inferior)
297 chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
299 if (inf->pid == ptid_get_pid (inferior_ptid))
300 ui_out_text (uiout, "* ");
302 ui_out_text (uiout, " ");
304 ui_out_field_int (uiout, "id", inf->num);
305 ui_out_text (uiout, " ");
306 ui_out_field_int (uiout, "target-id", inf->pid);
308 ui_out_text (uiout, "\n");
309 do_cleanups (chain2);
312 do_cleanups (old_chain);
315 /* Print information about currently known inferiors. */
318 info_inferiors_command (char *arg, int from_tty)
320 print_inferior (uiout, -1);
323 /* Print notices when new inferiors are created and die. */
325 show_print_inferior_events (struct ui_file *file, int from_tty,
326 struct cmd_list_element *c, const char *value)
328 fprintf_filtered (file, _("Printing of inferior events is %s.\n"), value);
332 _initialize_inferiors (void)
334 add_info ("inferiors", info_inferiors_command,
335 _("IDs of currently known inferiors."));
337 add_setshow_boolean_cmd ("inferior-events", no_class,
338 &print_inferior_events, _("\
339 Set printing of inferior events (e.g., inferior start and exit)."), _("\
340 Show printing of inferior events (e.g., inferior start and exit)."), NULL,
342 show_print_inferior_events,
343 &setprintlist, &showprintlist);