1f0c498857
gdb/ 2013-08-27 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/15415 * corefile.c (get_exec_file): Use exec_filename. * defs.h (OPF_DISABLE_REALPATH): New definition. Add new comment. * exec.c (exec_close): Free EXEC_FILENAME. (exec_file_attach): New variable canonical_pathname. Use OPF_DISABLE_REALPATH. Call gdb_realpath explicitly. Set EXEC_FILENAME. * exec.h (exec_filename): New. * inferior.c (print_inferior, inferior_command): Use PSPACE_EXEC_FILENAME. * mi/mi-main.c (print_one_inferior): Likewise. * progspace.c (clone_program_space, print_program_space): Likewise. * progspace.h (struct program_space): New field pspace_exec_filename. * source.c (openp): Describe OPF_DISABLE_REALPATH. New variable realpath_fptr, initialize it from OPF_DISABLE_REALPATH, use it. gdb/testsuite/ 2013-08-27 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/15415 * gdb.base/argv0-symlink.c: New file. * gdb.base/argv0-symlink.exp: New file.
1047 lines
23 KiB
C
1047 lines
23 KiB
C
/* Multi-process control for GDB, the GNU debugger.
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Copyright (C) 2008-2013 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 "gdbthread.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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void _initialize_inferiors (void);
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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. */
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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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current_inferior_ = inf;
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}
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/* A cleanups callback, helper for save_current_program_space
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below. */
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static void
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restore_inferior (void *arg)
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{
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struct inferior *saved_inferior = arg;
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set_current_inferior (saved_inferior);
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}
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/* Save the current program space so that it may be restored by a later
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call to do_cleanups. Returns the struct cleanup pointer needed for
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later doing the cleanup. */
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struct cleanup *
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save_current_inferior (void)
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{
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struct cleanup *old_chain = make_cleanup (restore_inferior,
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current_inferior_);
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return old_chain;
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}
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static void
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free_inferior (struct inferior *inf)
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{
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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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free_environ (inf->environment);
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target_desc_info_free (inf->tdesc_info);
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xfree (inf->private);
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xfree (inf);
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}
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void
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init_inferior_list (void)
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{
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struct inferior *inf, *infnext;
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highest_inferior_num = 0;
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if (!inferior_list)
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return;
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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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free_inferior (inf);
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}
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inferior_list = NULL;
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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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struct inferior *inf;
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inf = xmalloc (sizeof (*inf));
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memset (inf, 0, sizeof (*inf));
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inf->pid = pid;
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inf->control.stop_soon = NO_STOP_QUIETLY;
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inf->num = ++highest_inferior_num;
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inf->next = inferior_list;
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inferior_list = inf;
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inf->environment = make_environ ();
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init_environ (inf->environment);
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inferior_alloc_data (inf);
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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 = 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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/* If SILENT then be quiet -- don't announce a inferior death, or the
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exit of its threads. */
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void
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delete_inferior_1 (struct inferior *todel, int silent)
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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 = silent;
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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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free_inferior (inf);
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}
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void
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delete_inferior (int pid)
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{
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struct inferior *inf = find_inferior_pid (pid);
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delete_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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delete_inferior_silent (int pid)
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{
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struct inferior *inf = find_inferior_pid (pid);
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delete_inferior_1 (inf, 1);
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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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/* Notify the observers before removing the inferior from the list,
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so that the observers have a chance to look it up. */
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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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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->has_exit_code = 0;
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inf->exit_code = 0;
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inf->pending_detach = 0;
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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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void
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detach_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, 1);
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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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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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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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/* Find an inferior bound to PSPACE. */
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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;
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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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int
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have_live_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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{
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struct thread_info *tp;
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tp = any_thread_of_process (inf->pid);
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if (tp && target_has_execution_1 (tp->ptid))
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break;
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}
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return inf != NULL;
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}
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/* Prune away automatically added program spaces that aren't required
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anymore. */
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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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struct inferior *current = current_inferior ();
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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 == current
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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_1 (ss, 1);
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ss = *ss_link;
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}
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prune_program_spaces ();
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}
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/* Simply returns the count of inferiors. */
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||
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int
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number_of_inferiors (void)
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||
{
|
||
struct inferior *inf;
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int count = 0;
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||
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for (inf = inferior_list; inf != NULL; inf = inf->next)
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count++;
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|
||
return count;
|
||
}
|
||
|
||
/* Converts an inferior process id to a string. Like
|
||
target_pid_to_str, but special cases the null process. */
|
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||
static char *
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||
inferior_pid_to_str (int pid)
|
||
{
|
||
if (pid != 0)
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return target_pid_to_str (pid_to_ptid (pid));
|
||
else
|
||
return _("<null>");
|
||
}
|
||
|
||
/* Prints the list of inferiors and their details on UIOUT. This is a
|
||
version of 'info_inferior_command' suitable for use from MI.
|
||
|
||
If REQUESTED_INFERIORS is not NULL, it's a list of GDB ids of the
|
||
inferiors that should be printed. Otherwise, all inferiors are
|
||
printed. */
|
||
|
||
static void
|
||
print_inferior (struct ui_out *uiout, char *requested_inferiors)
|
||
{
|
||
struct inferior *inf;
|
||
struct cleanup *old_chain;
|
||
int inf_count = 0;
|
||
|
||
/* Compute number of inferiors we will print. */
|
||
for (inf = inferior_list; inf; inf = inf->next)
|
||
{
|
||
if (!number_is_in_list (requested_inferiors, inf->num))
|
||
continue;
|
||
|
||
++inf_count;
|
||
}
|
||
|
||
if (inf_count == 0)
|
||
{
|
||
ui_out_message (uiout, 0, "No inferiors.\n");
|
||
return;
|
||
}
|
||
|
||
old_chain = make_cleanup_ui_out_table_begin_end (uiout, 4, inf_count,
|
||
"inferiors");
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||
ui_out_table_header (uiout, 1, ui_left, "current", "");
|
||
ui_out_table_header (uiout, 4, ui_left, "number", "Num");
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||
ui_out_table_header (uiout, 17, ui_left, "target-id", "Description");
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||
ui_out_table_header (uiout, 17, ui_left, "exec", "Executable");
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||
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||
ui_out_table_body (uiout);
|
||
for (inf = inferior_list; inf; inf = inf->next)
|
||
{
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||
struct cleanup *chain2;
|
||
|
||
if (!number_is_in_list (requested_inferiors, inf->num))
|
||
continue;
|
||
|
||
chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
|
||
|
||
if (inf == current_inferior ())
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||
ui_out_field_string (uiout, "current", "*");
|
||
else
|
||
ui_out_field_skip (uiout, "current");
|
||
|
||
ui_out_field_int (uiout, "number", inf->num);
|
||
|
||
ui_out_field_string (uiout, "target-id",
|
||
inferior_pid_to_str (inf->pid));
|
||
|
||
if (inf->pspace->pspace_exec_filename != NULL)
|
||
ui_out_field_string (uiout, "exec", inf->pspace->pspace_exec_filename);
|
||
else
|
||
ui_out_field_skip (uiout, "exec");
|
||
|
||
/* 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)
|
||
{
|
||
ui_out_text (uiout, _("\n\tis vfork child of inferior "));
|
||
ui_out_field_int (uiout, "vfork-parent", inf->vfork_parent->num);
|
||
}
|
||
if (inf->vfork_child)
|
||
{
|
||
ui_out_text (uiout, _("\n\tis vfork parent of inferior "));
|
||
ui_out_field_int (uiout, "vfork-child", inf->vfork_child->num);
|
||
}
|
||
|
||
ui_out_text (uiout, "\n");
|
||
do_cleanups (chain2);
|
||
}
|
||
|
||
do_cleanups (old_chain);
|
||
}
|
||
|
||
static void
|
||
detach_inferior_command (char *args, int from_tty)
|
||
{
|
||
int num, pid;
|
||
struct thread_info *tp;
|
||
struct get_number_or_range_state state;
|
||
|
||
if (!args || !*args)
|
||
error (_("Requires argument (inferior id(s) to detach)"));
|
||
|
||
init_number_or_range (&state, args);
|
||
while (!state.finished)
|
||
{
|
||
num = get_number_or_range (&state);
|
||
|
||
if (!valid_gdb_inferior_id (num))
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
pid = gdb_inferior_id_to_pid (num);
|
||
|
||
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 (char *args, int from_tty)
|
||
{
|
||
int num, pid;
|
||
struct thread_info *tp;
|
||
struct get_number_or_range_state state;
|
||
|
||
if (!args || !*args)
|
||
error (_("Requires argument (inferior id(s) to kill)"));
|
||
|
||
init_number_or_range (&state, args);
|
||
while (!state.finished)
|
||
{
|
||
num = get_number_or_range (&state);
|
||
|
||
if (!valid_gdb_inferior_id (num))
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
pid = gdb_inferior_id_to_pid (num);
|
||
|
||
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 (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);
|
||
|
||
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))
|
||
{
|
||
struct thread_info *tp;
|
||
|
||
tp = any_thread_of_process (inf->pid);
|
||
if (!tp)
|
||
error (_("Inferior has no threads."));
|
||
|
||
switch_to_thread (tp->ptid);
|
||
}
|
||
|
||
printf_filtered (_("[Switching to thread %d (%s)] "),
|
||
pid_to_thread_id (inferior_ptid),
|
||
target_pid_to_str (inferior_ptid));
|
||
}
|
||
else
|
||
{
|
||
struct inferior *inf;
|
||
|
||
inf = find_inferior_id (num);
|
||
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);
|
||
}
|
||
}
|
||
|
||
/* Print information about currently known inferiors. */
|
||
|
||
static void
|
||
info_inferiors_command (char *args, int from_tty)
|
||
{
|
||
print_inferior (current_uiout, args);
|
||
}
|
||
|
||
/* remove-inferior ID */
|
||
|
||
static void
|
||
remove_inferior_command (char *args, int from_tty)
|
||
{
|
||
int num;
|
||
struct inferior *inf;
|
||
struct get_number_or_range_state state;
|
||
|
||
if (args == NULL || *args == '\0')
|
||
error (_("Requires an argument (inferior id(s) to remove)"));
|
||
|
||
init_number_or_range (&state, args);
|
||
while (!state.finished)
|
||
{
|
||
num = get_number_or_range (&state);
|
||
inf = find_inferior_id (num);
|
||
|
||
if (inf == NULL)
|
||
{
|
||
warning (_("Inferior ID %d not known."), num);
|
||
continue;
|
||
}
|
||
|
||
if (inf == current_inferior ())
|
||
{
|
||
warning (_("Can not remove current symbol inferior %d."), num);
|
||
continue;
|
||
}
|
||
|
||
if (inf->pid != 0)
|
||
{
|
||
warning (_("Can not remove active inferior %d."), num);
|
||
continue;
|
||
}
|
||
|
||
delete_inferior_1 (inf, 1);
|
||
}
|
||
}
|
||
|
||
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 (char *args, int from_tty)
|
||
{
|
||
int i, copies = 1;
|
||
char *exec = NULL;
|
||
char **argv;
|
||
struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
|
||
|
||
if (args)
|
||
{
|
||
argv = gdb_buildargv (args);
|
||
make_cleanup_freeargv (argv);
|
||
|
||
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);
|
||
}
|
||
else if (strcmp (*argv, "-exec") == 0)
|
||
{
|
||
++argv;
|
||
if (!*argv)
|
||
error (_("No argument to -exec"));
|
||
exec = tilde_expand (*argv);
|
||
make_cleanup (xfree, exec);
|
||
}
|
||
}
|
||
else
|
||
error (_("Invalid argument"));
|
||
}
|
||
}
|
||
|
||
save_current_space_and_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, from_tty);
|
||
symbol_file_add_main (exec, from_tty);
|
||
}
|
||
}
|
||
|
||
do_cleanups (old_chain);
|
||
}
|
||
|
||
/* clone-inferior [-copies N] [ID] */
|
||
|
||
static void
|
||
clone_inferior_command (char *args, int from_tty)
|
||
{
|
||
int i, copies = 1;
|
||
char **argv;
|
||
struct inferior *orginf = NULL;
|
||
struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
|
||
|
||
if (args)
|
||
{
|
||
argv = gdb_buildargv (args);
|
||
make_cleanup_freeargv (argv);
|
||
|
||
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 ();
|
||
|
||
save_current_space_and_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);
|
||
}
|
||
|
||
do_cleanups (old_chain);
|
||
}
|
||
|
||
/* 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);
|
||
}
|
||
|
||
|
||
|
||
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_->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);
|
||
|
||
}
|