/* Multi-process control for GDB, the GNU debugger.
- Copyright (C) 2008-2015 Free Software Foundation, Inc.
+ Copyright (C) 2008-2016 Free Software Foundation, Inc.
This file is part of GDB.
static void
restore_inferior (void *arg)
{
- struct inferior *saved_inferior = arg;
+ struct inferior *saved_inferior = (struct inferior *) arg;
set_current_inferior (saved_inferior);
}
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)
{
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;
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 any unused inferiors, and then prune away no longer used
return _("<null>");
}
+/* See inferior.h. */
+
+void
+print_selected_inferior (struct ui_out *uiout)
+{
+ char buf[PATH_MAX + 256];
+ struct inferior *inf = current_inferior ();
+
+ xsnprintf (buf, sizeof (buf),
+ _("[Switching to inferior %d [%s] (%s)]\n"),
+ inf->num,
+ inferior_pid_to_str (inf->pid),
+ (inf->pspace->pspace_exec_filename != NULL
+ ? inf->pspace->pspace_exec_filename
+ : _("<noexec>")));
+ ui_out_text (uiout, buf);
+}
+
/* Prints the list of inferiors and their details on UIOUT. This is a
version of 'info_inferior_command' suitable for use from MI.
if (inf == NULL)
error (_("Inferior ID %d not known."), num);
- printf_filtered (_("[Switching to inferior %d [%s] (%s)]\n"),
- inf->num,
- inferior_pid_to_str (inf->pid),
- (inf->pspace->pspace_exec_filename != NULL
- ? inf->pspace->pspace_exec_filename
- : _("<noexec>")));
-
if (inf->pid != 0)
{
if (inf->pid != ptid_get_pid (inferior_ptid))
switch_to_thread (tp->ptid);
}
- printf_filtered (_("[Switching to thread %d (%s)] "),
- pid_to_thread_id (inferior_ptid),
- target_pid_to_str (inferior_ptid));
+ observer_notify_user_selected_context_changed
+ (USER_SELECTED_INFERIOR
+ | USER_SELECTED_THREAD
+ | USER_SELECTED_FRAME);
}
else
{
set_current_inferior (inf);
switch_to_thread (null_ptid);
set_current_program_space (inf->pspace);
- }
- if (inf->pid != 0 && is_running (inferior_ptid))
- ui_out_text (current_uiout, "(running)\n");
- else if (inf->pid != 0)
- {
- ui_out_text (current_uiout, "\n");
- print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
+ observer_notify_user_selected_context_changed (USER_SELECTED_INFERIOR);
}
}
if (inf == current_inferior ())
{
- warning (_("Can not remove current symbol inferior %d."), num);
+ warning (_("Can not remove current inferior %d."), num);
continue;
}
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);
}