/* Multi-process control for GDB, the GNU debugger.
- Copyright (C) 2008-2013 Free Software Foundation, Inc.
+ Copyright (C) 2008-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbthread.h"
#include "ui-out.h"
#include "observer.h"
-#include "gdbthread.h"
#include "gdbcore.h"
#include "symfile.h"
#include "environ.h"
static void
restore_inferior (void *arg)
{
- struct inferior *saved_inferior = arg;
+ struct inferior *saved_inferior = (struct inferior *) arg;
set_current_inferior (saved_inferior);
}
xfree (inf->terminal);
free_environ (inf->environment);
target_desc_info_free (inf->tdesc_info);
- xfree (inf->private);
+ xfree (inf->priv);
xfree (inf);
}
{
struct inferior *inf;
- inf = xmalloc (sizeof (*inf));
+ inf = XNEW (struct inferior);
memset (inf, 0, sizeof (*inf));
inf->pid = pid;
inf->control.stop_soon = NO_STOP_QUIETLY;
inf->num = ++highest_inferior_num;
- inf->next = inferior_list;
- inferior_list = inf;
+
+ if (inferior_list == NULL)
+ inferior_list = inf;
+ else
+ {
+ struct inferior *last;
+
+ for (last = inferior_list; last->next != NULL; last = last->next)
+ ;
+ last->next = inf;
+ }
inf->environment = make_environ ();
init_environ (inf->environment);
static int
delete_thread_of_inferior (struct thread_info *tp, void *data)
{
- struct delete_thread_of_inferior_arg *arg = data;
+ struct delete_thread_of_inferior_arg *arg
+ = (struct delete_thread_of_inferior_arg *) data;
if (ptid_get_pid (tp->ptid) == arg->pid)
{
return 0;
}
-/* If SILENT then be quiet -- don't announce a inferior death, or the
- exit of its threads. */
-
void
-delete_inferior_1 (struct inferior *todel, int silent)
+delete_inferior (struct inferior *todel)
{
struct inferior *inf, *infprev;
struct delete_thread_of_inferior_arg arg;
return;
arg.pid = inf->pid;
- arg.silent = silent;
+ arg.silent = 1;
iterate_over_threads (delete_thread_of_inferior, &arg);
observer_notify_inferior_removed (inf);
- free_inferior (inf);
-}
-
-void
-delete_inferior (int pid)
-{
- struct inferior *inf = find_inferior_pid (pid);
-
- delete_inferior_1 (inf, 0);
+ /* If this program space is rendered useless, remove it. */
+ if (program_space_empty_p (inf->pspace))
+ delete_program_space (inf->pspace);
- if (print_inferior_events)
- printf_unfiltered (_("[Inferior %d exited]\n"), pid);
-}
-
-void
-delete_inferior_silent (int pid)
-{
- struct inferior *inf = find_inferior_pid (pid);
-
- delete_inferior_1 (inf, 1);
+ free_inferior (inf);
}
-
/* If SILENT then be quiet -- don't announce a inferior exit, or the
exit of its threads. */
iterate_over_threads (delete_thread_of_inferior, &arg);
- /* Notify the observers before removing the inferior from the list,
- so that the observers have a chance to look it up. */
observer_notify_inferior_exit (inf);
inf->pid = 0;
inf->vfork_child = NULL;
}
- inf->has_exit_code = 0;
- inf->exit_code = 0;
inf->pending_detach = 0;
}
{
struct inferior *inf = find_inferior_pid (pid);
- exit_inferior_1 (inf, 1);
+ exit_inferior_1 (inf, 0);
if (print_inferior_events)
printf_unfiltered (_("[Inferior %d detached]\n"), pid);
inferior_appeared (struct inferior *inf, int pid)
{
inf->pid = pid;
+ inf->has_exit_code = 0;
+ inf->exit_code = 0;
observer_notify_inferior_appeared (inf);
}
return NULL;
}
-/* Find an inferior bound to PSPACE. */
+/* See inferior.h */
+
+struct inferior *
+find_inferior_ptid (ptid_t ptid)
+{
+ return find_inferior_pid (ptid_get_pid (ptid));
+}
+
+/* See inferior.h. */
struct inferior *
find_inferior_for_program_space (struct program_space *pspace)
{
- struct inferior *inf;
+ struct inferior *inf = current_inferior ();
+
+ if (inf->pspace == pspace)
+ return inf;
for (inf = inferior_list; inf != NULL; inf = inf->next)
{
return 0;
}
+/* Return the number of live inferiors. We account for the case
+ where an inferior might have a non-zero pid but no threads, as
+ in the middle of a 'mourn' operation. */
+
int
-have_live_inferiors (void)
+number_of_live_inferiors (void)
{
struct inferior *inf;
+ int num_inf = 0;
for (inf = inferior_list; inf; inf = inf->next)
if (inf->pid != 0)
{
struct thread_info *tp;
-
- tp = any_thread_of_process (inf->pid);
- if (tp && target_has_execution_1 (tp->ptid))
- break;
+
+ ALL_NON_EXITED_THREADS (tp)
+ if (tp && ptid_get_pid (tp->ptid) == inf->pid)
+ if (target_has_execution_1 (tp->ptid))
+ {
+ /* Found a live thread in this inferior, go to the next
+ inferior. */
+ ++num_inf;
+ break;
+ }
}
- return inf != NULL;
+ return num_inf;
+}
+
+/* Return true if there is at least one live inferior. */
+
+int
+have_live_inferiors (void)
+{
+ return number_of_live_inferiors () > 0;
}
-/* Prune away automatically added program spaces that aren't required
- anymore. */
+/* Prune away any unused inferiors, and then prune away no longer used
+ program spaces. */
void
prune_inferiors (void)
}
*ss_link = ss->next;
- delete_inferior_1 (ss, 1);
+ delete_inferior (ss);
ss = *ss_link;
}
-
- prune_program_spaces ();
}
/* Simply returns the count of inferiors. */
}
pid = gdb_inferior_id_to_pid (num);
+ if (pid == 0)
+ {
+ warning (_("Inferior ID %d is not running."), num);
+ continue;
+ }
tp = any_thread_of_process (pid);
if (!tp)
}
pid = gdb_inferior_id_to_pid (num);
+ if (pid == 0)
+ {
+ warning (_("Inferior ID %d is not running."), num);
+ continue;
+ }
tp = any_thread_of_process (pid);
if (!tp)
switch_to_thread (tp->ptid);
}
- printf_filtered (_("[Switching to thread %d (%s)] "),
- pid_to_thread_id (inferior_ptid),
+ printf_filtered (_("[Switching to thread %s (%s)] "),
+ print_thread_id (inferior_thread ()),
target_pid_to_str (inferior_ptid));
}
else
if (inf == current_inferior ())
{
- warning (_("Can not remove current symbol inferior %d."), num);
+ warning (_("Can not remove current inferior %d."), num);
continue;
}
continue;
}
- delete_inferior_1 (inf, 1);
+ delete_inferior (inf);
}
}
fprintf_filtered (file, _("Printing of inferior events is %s.\n"), value);
}
+/* Return a new value for the selected inferior's id. */
+
+static struct value *
+inferior_id_make_value (struct gdbarch *gdbarch, struct internalvar *var,
+ void *ignore)
+{
+ struct inferior *inf = current_inferior ();
+
+ return value_from_longest (builtin_type (gdbarch)->builtin_int, inf->num);
+}
+
+/* Implementation of `$_inferior' variable. */
+
+static const struct internalvar_funcs inferior_funcs =
+{
+ inferior_id_make_value,
+ NULL,
+ NULL
+};
+
\f
void
show_print_inferior_events,
&setprintlist, &showprintlist);
+ create_internalvar_type_lazy ("_inferior", &inferior_funcs, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff