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https://sourceware.org/git/binutils-gdb.git
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85046ae23f
When we kill an inferior, the inferior is not deleted. What is more, it is reused when the new process is created, so we need to reset inferior's state when it exits. gdb: 2018-02-15 Yao Qi <yao.qi@linaro.org> PR gdb/22849 * inferior.c (exit_inferior_1): Reset inf->control.
1044 lines
23 KiB
C
1044 lines
23 KiB
C
/* Multi-process control for GDB, the GNU debugger.
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Copyright (C) 2008-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "exec.h"
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#include "inferior.h"
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#include "target.h"
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#include "command.h"
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#include "completer.h"
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#include "gdbcmd.h"
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#include "gdbthread.h"
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#include "ui-out.h"
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#include "observer.h"
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#include "gdbcore.h"
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#include "symfile.h"
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#include "environ.h"
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#include "cli/cli-utils.h"
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#include "continuations.h"
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#include "arch-utils.h"
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#include "target-descriptions.h"
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#include "readline/tilde.h"
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#include "progspace-and-thread.h"
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/* Keep a registry of per-inferior data-pointers required by other GDB
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modules. */
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DEFINE_REGISTRY (inferior, REGISTRY_ACCESS_FIELD)
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struct inferior *inferior_list = NULL;
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static int highest_inferior_num;
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/* Print notices on inferior events (attach, detach, etc.), set with
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`set print inferior-events'. */
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static int print_inferior_events = 0;
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/* The Current Inferior. This is a strong reference. I.e., whenever
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an inferior is the current inferior, its refcount is
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incremented. */
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static struct inferior *current_inferior_ = NULL;
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struct inferior*
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current_inferior (void)
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{
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return current_inferior_;
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}
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void
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set_current_inferior (struct inferior *inf)
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{
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/* There's always an inferior. */
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gdb_assert (inf != NULL);
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inf->incref ();
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current_inferior_->decref ();
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current_inferior_ = inf;
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}
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private_inferior::~private_inferior () = default;
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inferior::~inferior ()
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{
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inferior *inf = this;
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discard_all_inferior_continuations (inf);
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inferior_free_data (inf);
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xfree (inf->args);
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xfree (inf->terminal);
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target_desc_info_free (inf->tdesc_info);
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}
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inferior::inferior (int pid_)
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: num (++highest_inferior_num),
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pid (pid_),
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environment (gdb_environ::from_host_environ ()),
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registry_data ()
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{
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inferior_alloc_data (this);
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}
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struct inferior *
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add_inferior_silent (int pid)
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{
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inferior *inf = new inferior (pid);
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if (inferior_list == NULL)
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inferior_list = inf;
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else
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{
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inferior *last;
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for (last = inferior_list; last->next != NULL; last = last->next)
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;
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last->next = inf;
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}
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observer_notify_inferior_added (inf);
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if (pid != 0)
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inferior_appeared (inf, pid);
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return inf;
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}
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struct inferior *
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add_inferior (int pid)
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{
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struct inferior *inf = add_inferior_silent (pid);
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if (print_inferior_events)
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printf_unfiltered (_("[New inferior %d]\n"), pid);
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return inf;
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}
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struct delete_thread_of_inferior_arg
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{
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int pid;
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int silent;
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};
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static int
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delete_thread_of_inferior (struct thread_info *tp, void *data)
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{
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struct delete_thread_of_inferior_arg *arg
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= (struct delete_thread_of_inferior_arg *) data;
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if (ptid_get_pid (tp->ptid) == arg->pid)
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{
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if (arg->silent)
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delete_thread_silent (tp->ptid);
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else
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delete_thread (tp->ptid);
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}
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return 0;
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}
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void
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delete_inferior (struct inferior *todel)
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{
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struct inferior *inf, *infprev;
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struct delete_thread_of_inferior_arg arg;
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infprev = NULL;
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for (inf = inferior_list; inf; infprev = inf, inf = inf->next)
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if (inf == todel)
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break;
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if (!inf)
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return;
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arg.pid = inf->pid;
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arg.silent = 1;
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iterate_over_threads (delete_thread_of_inferior, &arg);
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if (infprev)
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infprev->next = inf->next;
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else
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inferior_list = inf->next;
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observer_notify_inferior_removed (inf);
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/* If this program space is rendered useless, remove it. */
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if (program_space_empty_p (inf->pspace))
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delete_program_space (inf->pspace);
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delete inf;
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}
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/* If SILENT then be quiet -- don't announce a inferior exit, or the
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exit of its threads. */
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static void
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exit_inferior_1 (struct inferior *inftoex, int silent)
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{
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struct inferior *inf;
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struct delete_thread_of_inferior_arg arg;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf == inftoex)
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break;
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if (!inf)
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return;
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arg.pid = inf->pid;
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arg.silent = silent;
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iterate_over_threads (delete_thread_of_inferior, &arg);
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observer_notify_inferior_exit (inf);
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inf->pid = 0;
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inf->fake_pid_p = 0;
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inf->priv = NULL;
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if (inf->vfork_parent != NULL)
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{
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inf->vfork_parent->vfork_child = NULL;
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inf->vfork_parent = NULL;
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}
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if (inf->vfork_child != NULL)
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{
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inf->vfork_child->vfork_parent = NULL;
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inf->vfork_child = NULL;
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}
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inf->pending_detach = 0;
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/* Reset it. */
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inf->control = {NO_STOP_QUIETLY};
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}
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void
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exit_inferior (int pid)
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{
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struct inferior *inf = find_inferior_pid (pid);
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exit_inferior_1 (inf, 0);
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if (print_inferior_events)
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printf_unfiltered (_("[Inferior %d exited]\n"), pid);
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}
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void
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exit_inferior_silent (int pid)
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{
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struct inferior *inf = find_inferior_pid (pid);
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exit_inferior_1 (inf, 1);
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}
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void
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exit_inferior_num_silent (int num)
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{
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struct inferior *inf = find_inferior_id (num);
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exit_inferior_1 (inf, 1);
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}
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/* See inferior.h. */
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void
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detach_inferior (inferior *inf)
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{
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/* Save the pid, since exit_inferior_1 will reset it. */
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int pid = inf->pid;
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exit_inferior_1 (inf, 0);
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if (print_inferior_events)
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printf_unfiltered (_("[Inferior %d detached]\n"), pid);
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}
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/* See inferior.h. */
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void
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detach_inferior (int pid)
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{
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detach_inferior (find_inferior_pid (pid));
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}
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void
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inferior_appeared (struct inferior *inf, int pid)
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{
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inf->pid = pid;
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inf->has_exit_code = 0;
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inf->exit_code = 0;
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observer_notify_inferior_appeared (inf);
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}
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void
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discard_all_inferiors (void)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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{
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if (inf->pid != 0)
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exit_inferior_silent (inf->pid);
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}
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}
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struct inferior *
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find_inferior_id (int num)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->num == num)
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return inf;
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return NULL;
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}
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struct inferior *
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find_inferior_pid (int pid)
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{
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struct inferior *inf;
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/* Looking for inferior pid == 0 is always wrong, and indicative of
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a bug somewhere else. There may be more than one with pid == 0,
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for instance. */
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gdb_assert (pid != 0);
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->pid == pid)
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return inf;
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return NULL;
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}
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/* See inferior.h */
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struct inferior *
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find_inferior_ptid (ptid_t ptid)
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{
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return find_inferior_pid (ptid_get_pid (ptid));
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}
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/* See inferior.h. */
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struct inferior *
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find_inferior_for_program_space (struct program_space *pspace)
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{
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struct inferior *inf = current_inferior ();
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if (inf->pspace == pspace)
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return inf;
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for (inf = inferior_list; inf != NULL; inf = inf->next)
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{
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if (inf->pspace == pspace)
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return inf;
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}
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return NULL;
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}
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struct inferior *
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iterate_over_inferiors (int (*callback) (struct inferior *, void *),
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void *data)
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{
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struct inferior *inf, *infnext;
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for (inf = inferior_list; inf; inf = infnext)
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{
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infnext = inf->next;
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if ((*callback) (inf, data))
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return inf;
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}
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return NULL;
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}
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int
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valid_gdb_inferior_id (int num)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->num == num)
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return 1;
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return 0;
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}
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int
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pid_to_gdb_inferior_id (int pid)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->pid == pid)
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return inf->num;
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return 0;
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}
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int
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gdb_inferior_id_to_pid (int num)
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{
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struct inferior *inferior = find_inferior_id (num);
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if (inferior)
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return inferior->pid;
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else
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return -1;
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}
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int
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in_inferior_list (int pid)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->pid == pid)
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return 1;
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return 0;
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}
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int
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have_inferiors (void)
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{
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struct inferior *inf;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->pid != 0)
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return 1;
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return 0;
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}
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/* Return the number of live inferiors. We account for the case
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where an inferior might have a non-zero pid but no threads, as
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in the middle of a 'mourn' operation. */
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int
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number_of_live_inferiors (void)
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{
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struct inferior *inf;
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int num_inf = 0;
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for (inf = inferior_list; inf; inf = inf->next)
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if (inf->pid != 0)
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{
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struct thread_info *tp;
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ALL_NON_EXITED_THREADS (tp)
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if (tp && ptid_get_pid (tp->ptid) == inf->pid)
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if (target_has_execution_1 (tp->ptid))
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{
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/* Found a live thread in this inferior, go to the next
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inferior. */
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++num_inf;
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break;
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}
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}
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return num_inf;
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}
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/* Return true if there is at least one live inferior. */
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int
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have_live_inferiors (void)
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{
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return number_of_live_inferiors () > 0;
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}
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/* Prune away any unused inferiors, and then prune away no longer used
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program spaces. */
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void
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prune_inferiors (void)
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{
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struct inferior *ss, **ss_link;
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ss = inferior_list;
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ss_link = &inferior_list;
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while (ss)
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{
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if (!ss->deletable ()
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|| !ss->removable
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|| ss->pid != 0)
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{
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ss_link = &ss->next;
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ss = *ss_link;
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continue;
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}
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*ss_link = ss->next;
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delete_inferior (ss);
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ss = *ss_link;
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}
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}
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/* Simply returns the count of inferiors. */
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int
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number_of_inferiors (void)
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{
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struct inferior *inf;
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int count = 0;
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for (inf = inferior_list; inf != NULL; inf = inf->next)
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count++;
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return count;
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}
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/* Converts an inferior process id to a string. Like
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target_pid_to_str, but special cases the null process. */
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static const char *
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inferior_pid_to_str (int pid)
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{
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if (pid != 0)
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return target_pid_to_str (pid_to_ptid (pid));
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else
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return _("<null>");
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}
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|
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/* See inferior.h. */
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void
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print_selected_inferior (struct ui_out *uiout)
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{
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struct inferior *inf = current_inferior ();
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const char *filename = inf->pspace->pspace_exec_filename;
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if (filename == NULL)
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filename = _("<noexec>");
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uiout->message (_("[Switching to inferior %d [%s] (%s)]\n"),
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inf->num, inferior_pid_to_str (inf->pid), filename);
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||
}
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/* Prints the list of inferiors and their details on UIOUT. This is a
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||
version of 'info_inferior_command' suitable for use from MI.
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||
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If REQUESTED_INFERIORS is not NULL, it's a list of GDB ids of the
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||
inferiors that should be printed. Otherwise, all inferiors are
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printed. */
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static void
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print_inferior (struct ui_out *uiout, const char *requested_inferiors)
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{
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struct inferior *inf;
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int inf_count = 0;
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|
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/* Compute number of inferiors we will print. */
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for (inf = inferior_list; inf; inf = inf->next)
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||
{
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if (!number_is_in_list (requested_inferiors, inf->num))
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continue;
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++inf_count;
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||
}
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|
||
if (inf_count == 0)
|
||
{
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uiout->message ("No inferiors.\n");
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return;
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||
}
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||
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ui_out_emit_table table_emitter (uiout, 4, inf_count, "inferiors");
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uiout->table_header (1, ui_left, "current", "");
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uiout->table_header (4, ui_left, "number", "Num");
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uiout->table_header (17, ui_left, "target-id", "Description");
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uiout->table_header (17, ui_left, "exec", "Executable");
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uiout->table_body ();
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for (inf = inferior_list; inf; inf = inf->next)
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{
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if (!number_is_in_list (requested_inferiors, inf->num))
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continue;
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ui_out_emit_tuple tuple_emitter (uiout, NULL);
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if (inf == current_inferior ())
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uiout->field_string ("current", "*");
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else
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uiout->field_skip ("current");
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uiout->field_int ("number", inf->num);
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uiout->field_string ("target-id", inferior_pid_to_str (inf->pid));
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if (inf->pspace->pspace_exec_filename != NULL)
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uiout->field_string ("exec", inf->pspace->pspace_exec_filename);
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||
else
|
||
uiout->field_skip ("exec");
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||
|
||
/* Print extra info that isn't really fit to always present in
|
||
tabular form. Currently we print the vfork parent/child
|
||
relationships, if any. */
|
||
if (inf->vfork_parent)
|
||
{
|
||
uiout->text (_("\n\tis vfork child of inferior "));
|
||
uiout->field_int ("vfork-parent", inf->vfork_parent->num);
|
||
}
|
||
if (inf->vfork_child)
|
||
{
|
||
uiout->text (_("\n\tis vfork parent of inferior "));
|
||
uiout->field_int ("vfork-child", inf->vfork_child->num);
|
||
}
|
||
|
||
uiout->text ("\n");
|
||
}
|
||
}
|
||
|
||
static void
|
||
detach_inferior_command (const char *args, int from_tty)
|
||
{
|
||
struct thread_info *tp;
|
||
|
||
if (!args || !*args)
|
||
error (_("Requires argument (inferior id(s) to detach)"));
|
||
|
||
number_or_range_parser parser (args);
|
||
while (!parser.finished ())
|
||
{
|
||
int num = parser.get_number ();
|
||
|
||
if (!valid_gdb_inferior_id (num))
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
int 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)
|
||
{
|
||
warning (_("Inferior ID %d has no threads."), num);
|
||
continue;
|
||
}
|
||
|
||
switch_to_thread (tp->ptid);
|
||
|
||
detach_command (NULL, from_tty);
|
||
}
|
||
}
|
||
|
||
static void
|
||
kill_inferior_command (const char *args, int from_tty)
|
||
{
|
||
struct thread_info *tp;
|
||
|
||
if (!args || !*args)
|
||
error (_("Requires argument (inferior id(s) to kill)"));
|
||
|
||
number_or_range_parser parser (args);
|
||
while (!parser.finished ())
|
||
{
|
||
int num = parser.get_number ();
|
||
|
||
if (!valid_gdb_inferior_id (num))
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
int 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)
|
||
{
|
||
warning (_("Inferior ID %d has no threads."), num);
|
||
continue;
|
||
}
|
||
|
||
switch_to_thread (tp->ptid);
|
||
|
||
target_kill ();
|
||
}
|
||
|
||
bfd_cache_close_all ();
|
||
}
|
||
|
||
static void
|
||
inferior_command (const char *args, int from_tty)
|
||
{
|
||
struct inferior *inf;
|
||
int num;
|
||
|
||
num = parse_and_eval_long (args);
|
||
|
||
inf = find_inferior_id (num);
|
||
if (inf == NULL)
|
||
error (_("Inferior ID %d not known."), num);
|
||
|
||
if (inf->pid != 0)
|
||
{
|
||
if (inf->pid != ptid_get_pid (inferior_ptid))
|
||
{
|
||
struct thread_info *tp;
|
||
|
||
tp = any_thread_of_process (inf->pid);
|
||
if (!tp)
|
||
error (_("Inferior has no threads."));
|
||
|
||
switch_to_thread (tp->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);
|
||
|
||
observer_notify_user_selected_context_changed (USER_SELECTED_INFERIOR);
|
||
}
|
||
}
|
||
|
||
/* Print information about currently known inferiors. */
|
||
|
||
static void
|
||
info_inferiors_command (const char *args, int from_tty)
|
||
{
|
||
print_inferior (current_uiout, args);
|
||
}
|
||
|
||
/* remove-inferior ID */
|
||
|
||
static void
|
||
remove_inferior_command (const char *args, int from_tty)
|
||
{
|
||
if (args == NULL || *args == '\0')
|
||
error (_("Requires an argument (inferior id(s) to remove)"));
|
||
|
||
number_or_range_parser parser (args);
|
||
while (!parser.finished ())
|
||
{
|
||
int num = parser.get_number ();
|
||
struct inferior *inf = find_inferior_id (num);
|
||
|
||
if (inf == NULL)
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
if (!inf->deletable ())
|
||
{
|
||
warning (_("Can not remove current inferior %d."), num);
|
||
continue;
|
||
}
|
||
|
||
if (inf->pid != 0)
|
||
{
|
||
warning (_("Can not remove active inferior %d."), num);
|
||
continue;
|
||
}
|
||
|
||
delete_inferior (inf);
|
||
}
|
||
}
|
||
|
||
struct inferior *
|
||
add_inferior_with_spaces (void)
|
||
{
|
||
struct address_space *aspace;
|
||
struct program_space *pspace;
|
||
struct inferior *inf;
|
||
struct gdbarch_info info;
|
||
|
||
/* If all inferiors share an address space on this system, this
|
||
doesn't really return a new address space; otherwise, it
|
||
really does. */
|
||
aspace = maybe_new_address_space ();
|
||
pspace = add_program_space (aspace);
|
||
inf = add_inferior (0);
|
||
inf->pspace = pspace;
|
||
inf->aspace = pspace->aspace;
|
||
|
||
/* Setup the inferior's initial arch, based on information obtained
|
||
from the global "set ..." options. */
|
||
gdbarch_info_init (&info);
|
||
inf->gdbarch = gdbarch_find_by_info (info);
|
||
/* The "set ..." options reject invalid settings, so we should
|
||
always have a valid arch by now. */
|
||
gdb_assert (inf->gdbarch != NULL);
|
||
|
||
return inf;
|
||
}
|
||
|
||
/* add-inferior [-copies N] [-exec FILENAME] */
|
||
|
||
static void
|
||
add_inferior_command (const char *args, int from_tty)
|
||
{
|
||
int i, copies = 1;
|
||
gdb::unique_xmalloc_ptr<char> exec;
|
||
symfile_add_flags add_flags = 0;
|
||
|
||
if (from_tty)
|
||
add_flags |= SYMFILE_VERBOSE;
|
||
|
||
if (args)
|
||
{
|
||
gdb_argv built_argv (args);
|
||
|
||
for (char **argv = built_argv.get (); *argv != NULL; argv++)
|
||
{
|
||
if (**argv == '-')
|
||
{
|
||
if (strcmp (*argv, "-copies") == 0)
|
||
{
|
||
++argv;
|
||
if (!*argv)
|
||
error (_("No argument to -copies"));
|
||
copies = parse_and_eval_long (*argv);
|
||
}
|
||
else if (strcmp (*argv, "-exec") == 0)
|
||
{
|
||
++argv;
|
||
if (!*argv)
|
||
error (_("No argument to -exec"));
|
||
exec.reset (tilde_expand (*argv));
|
||
}
|
||
}
|
||
else
|
||
error (_("Invalid argument"));
|
||
}
|
||
}
|
||
|
||
scoped_restore_current_pspace_and_thread restore_pspace_thread;
|
||
|
||
for (i = 0; i < copies; ++i)
|
||
{
|
||
struct inferior *inf = add_inferior_with_spaces ();
|
||
|
||
printf_filtered (_("Added inferior %d\n"), inf->num);
|
||
|
||
if (exec != NULL)
|
||
{
|
||
/* Switch over temporarily, while reading executable and
|
||
symbols.q. */
|
||
set_current_program_space (inf->pspace);
|
||
set_current_inferior (inf);
|
||
switch_to_thread (null_ptid);
|
||
|
||
exec_file_attach (exec.get (), from_tty);
|
||
symbol_file_add_main (exec.get (), add_flags);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* clone-inferior [-copies N] [ID] */
|
||
|
||
static void
|
||
clone_inferior_command (const char *args, int from_tty)
|
||
{
|
||
int i, copies = 1;
|
||
struct inferior *orginf = NULL;
|
||
|
||
if (args)
|
||
{
|
||
gdb_argv built_argv (args);
|
||
|
||
char **argv = built_argv.get ();
|
||
for (; *argv != NULL; argv++)
|
||
{
|
||
if (**argv == '-')
|
||
{
|
||
if (strcmp (*argv, "-copies") == 0)
|
||
{
|
||
++argv;
|
||
if (!*argv)
|
||
error (_("No argument to -copies"));
|
||
copies = parse_and_eval_long (*argv);
|
||
|
||
if (copies < 0)
|
||
error (_("Invalid copies number"));
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (orginf == NULL)
|
||
{
|
||
int num;
|
||
|
||
/* The first non-option (-) argument specified the
|
||
program space ID. */
|
||
num = parse_and_eval_long (*argv);
|
||
orginf = find_inferior_id (num);
|
||
|
||
if (orginf == NULL)
|
||
error (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
else
|
||
error (_("Invalid argument"));
|
||
}
|
||
}
|
||
}
|
||
|
||
/* If no inferior id was specified, then the user wants to clone the
|
||
current inferior. */
|
||
if (orginf == NULL)
|
||
orginf = current_inferior ();
|
||
|
||
scoped_restore_current_pspace_and_thread restore_pspace_thread;
|
||
|
||
for (i = 0; i < copies; ++i)
|
||
{
|
||
struct address_space *aspace;
|
||
struct program_space *pspace;
|
||
struct inferior *inf;
|
||
|
||
/* If all inferiors share an address space on this system, this
|
||
doesn't really return a new address space; otherwise, it
|
||
really does. */
|
||
aspace = maybe_new_address_space ();
|
||
pspace = add_program_space (aspace);
|
||
inf = add_inferior (0);
|
||
inf->pspace = pspace;
|
||
inf->aspace = pspace->aspace;
|
||
inf->gdbarch = orginf->gdbarch;
|
||
|
||
/* If the original inferior had a user specified target
|
||
description, make the clone use it too. */
|
||
if (target_desc_info_from_user_p (inf->tdesc_info))
|
||
copy_inferior_target_desc_info (inf, orginf);
|
||
|
||
printf_filtered (_("Added inferior %d.\n"), inf->num);
|
||
|
||
set_current_inferior (inf);
|
||
switch_to_thread (null_ptid);
|
||
clone_program_space (pspace, orginf->pspace);
|
||
}
|
||
}
|
||
|
||
/* Print notices when new inferiors are created and die. */
|
||
static void
|
||
show_print_inferior_events (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c, const char *value)
|
||
{
|
||
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
|
||
};
|
||
|
||
|
||
|
||
void
|
||
initialize_inferiors (void)
|
||
{
|
||
struct cmd_list_element *c = NULL;
|
||
|
||
/* There's always one inferior. Note that this function isn't an
|
||
automatic _initialize_foo function, since other _initialize_foo
|
||
routines may need to install their per-inferior data keys. We
|
||
can only allocate an inferior when all those modules have done
|
||
that. Do this after initialize_progspace, due to the
|
||
current_program_space reference. */
|
||
current_inferior_ = add_inferior (0);
|
||
current_inferior_->incref ();
|
||
current_inferior_->pspace = current_program_space;
|
||
current_inferior_->aspace = current_program_space->aspace;
|
||
/* The architecture will be initialized shortly, by
|
||
initialize_current_architecture. */
|
||
|
||
add_info ("inferiors", info_inferiors_command,
|
||
_("IDs of specified inferiors (all inferiors if no argument)."));
|
||
|
||
c = add_com ("add-inferior", no_class, add_inferior_command, _("\
|
||
Add a new inferior.\n\
|
||
Usage: add-inferior [-copies <N>] [-exec <FILENAME>]\n\
|
||
N is the optional number of inferiors to add, default is 1.\n\
|
||
FILENAME is the file name of the executable to use\n\
|
||
as main program."));
|
||
set_cmd_completer (c, filename_completer);
|
||
|
||
add_com ("remove-inferiors", no_class, remove_inferior_command, _("\
|
||
Remove inferior ID (or list of IDs).\n\
|
||
Usage: remove-inferiors ID..."));
|
||
|
||
add_com ("clone-inferior", no_class, clone_inferior_command, _("\
|
||
Clone inferior ID.\n\
|
||
Usage: clone-inferior [-copies <N>] [ID]\n\
|
||
Add N copies of inferior ID. The new inferior has the same\n\
|
||
executable loaded as the copied inferior. If -copies is not specified,\n\
|
||
adds 1 copy. If ID is not specified, it is the current inferior\n\
|
||
that is cloned."));
|
||
|
||
add_cmd ("inferiors", class_run, detach_inferior_command, _("\
|
||
Detach from inferior ID (or list of IDS)."),
|
||
&detachlist);
|
||
|
||
add_cmd ("inferiors", class_run, kill_inferior_command, _("\
|
||
Kill inferior ID (or list of IDs)."),
|
||
&killlist);
|
||
|
||
add_cmd ("inferior", class_run, inferior_command, _("\
|
||
Use this command to switch between inferiors.\n\
|
||
The new inferior ID must be currently known."),
|
||
&cmdlist);
|
||
|
||
add_setshow_boolean_cmd ("inferior-events", no_class,
|
||
&print_inferior_events, _("\
|
||
Set printing of inferior events (e.g., inferior start and exit)."), _("\
|
||
Show printing of inferior events (e.g., inferior start and exit)."), NULL,
|
||
NULL,
|
||
show_print_inferior_events,
|
||
&setprintlist, &showprintlist);
|
||
|
||
create_internalvar_type_lazy ("_inferior", &inferior_funcs, NULL);
|
||
}
|