/* Target-vector operations for controlling Unix child processes, for GDB.
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/* Target-vector operations for controlling Unix child processes, for GDB.
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Copyright 1990-1996, 1998, 1999 Free Software Foundation, Inc.
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Copyright 1990-1996, 1998, 1999 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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Contributed by Cygnus Support.
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## Contains temporary hacks..
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## Contains temporary hacks..
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This file is part of GDB.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "defs.h"
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#include "frame.h" /* required by inferior.h */
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#include "frame.h" /* required by inferior.h */
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#include "inferior.h"
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#include "inferior.h"
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#include "target.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "command.h"
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#include "command.h"
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#include "gdb_stat.h"
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#include "gdb_stat.h"
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#include <signal.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <fcntl.h>
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#include "gdb_wait.h"
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#include "gdb_wait.h"
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extern struct symtab_and_line *
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extern struct symtab_and_line *
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child_enable_exception_callback PARAMS ((enum exception_event_kind, int));
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child_enable_exception_callback PARAMS ((enum exception_event_kind, int));
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extern struct exception_event_record *
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extern struct exception_event_record *
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child_get_current_exception_event PARAMS ((void));
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child_get_current_exception_event PARAMS ((void));
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extern void _initialize_inftarg PARAMS ((void));
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extern void _initialize_inftarg PARAMS ((void));
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static void
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static void
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child_prepare_to_store PARAMS ((void));
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child_prepare_to_store PARAMS ((void));
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#ifndef CHILD_WAIT
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#ifndef CHILD_WAIT
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static int child_wait PARAMS ((int, struct target_waitstatus *));
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static int child_wait PARAMS ((int, struct target_waitstatus *));
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#endif /* CHILD_WAIT */
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#endif /* CHILD_WAIT */
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#if !defined(CHILD_POST_WAIT)
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#if !defined(CHILD_POST_WAIT)
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void
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void
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child_post_wait PARAMS ((int, int));
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child_post_wait PARAMS ((int, int));
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#endif
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#endif
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static void child_open PARAMS ((char *, int));
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static void child_open PARAMS ((char *, int));
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static void
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static void
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child_files_info PARAMS ((struct target_ops *));
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child_files_info PARAMS ((struct target_ops *));
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static void
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static void
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child_detach PARAMS ((char *, int));
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child_detach PARAMS ((char *, int));
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static void
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static void
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child_detach_from_process PARAMS ((int, char *, int, int));
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child_detach_from_process PARAMS ((int, char *, int, int));
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static void
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static void
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child_attach PARAMS ((char *, int));
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child_attach PARAMS ((char *, int));
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static void
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static void
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child_attach_to_process PARAMS ((char *, int, int));
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child_attach_to_process PARAMS ((char *, int, int));
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#if !defined(CHILD_POST_ATTACH)
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#if !defined(CHILD_POST_ATTACH)
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extern void child_post_attach PARAMS ((int));
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extern void child_post_attach PARAMS ((int));
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#endif
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#endif
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static void
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static void
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child_require_attach PARAMS ((char *, int));
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child_require_attach PARAMS ((char *, int));
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static void
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static void
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child_require_detach PARAMS ((int, char *, int));
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child_require_detach PARAMS ((int, char *, int));
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static void
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static void
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ptrace_me PARAMS ((void));
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ptrace_me PARAMS ((void));
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static void
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static void
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ptrace_him PARAMS ((int));
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ptrace_him PARAMS ((int));
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static void
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static void
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child_create_inferior PARAMS ((char *, char *, char **));
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child_create_inferior PARAMS ((char *, char *, char **));
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static void
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static void
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child_mourn_inferior PARAMS ((void));
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child_mourn_inferior PARAMS ((void));
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static int
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static int
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child_can_run PARAMS ((void));
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child_can_run PARAMS ((void));
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static void
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static void
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child_stop PARAMS ((void));
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child_stop PARAMS ((void));
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#ifndef CHILD_THREAD_ALIVE
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#ifndef CHILD_THREAD_ALIVE
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int child_thread_alive PARAMS ((int));
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int child_thread_alive PARAMS ((int));
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#endif
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#endif
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static void init_child_ops PARAMS ((void));
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static void init_child_ops PARAMS ((void));
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extern char **environ;
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extern char **environ;
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struct target_ops child_ops;
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struct target_ops child_ops;
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int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to
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int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to
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be a runnable target. Used by targets
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be a runnable target. Used by targets
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that can sit atop inftarg, such as HPUX
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that can sit atop inftarg, such as HPUX
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thread support. */
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thread support. */
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#ifndef CHILD_WAIT
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#ifndef CHILD_WAIT
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/*## */
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/*## */
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/* Enable HACK for ttrace work. In
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/* Enable HACK for ttrace work. In
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* infttrace.c/require_notification_of_events,
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* infttrace.c/require_notification_of_events,
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* this is set to 0 so that the loop in child_wait
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* this is set to 0 so that the loop in child_wait
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* won't loop.
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* won't loop.
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*/
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*/
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int not_same_real_pid = 1;
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int not_same_real_pid = 1;
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/*## */
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/*## */
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/* Wait for child to do something. Return pid of child, or -1 in case
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/* Wait for child to do something. Return pid of child, or -1 in case
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of error; store status through argument pointer OURSTATUS. */
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of error; store status through argument pointer OURSTATUS. */
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static int
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static int
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child_wait (pid, ourstatus)
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child_wait (pid, ourstatus)
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int pid;
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int pid;
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struct target_waitstatus *ourstatus;
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struct target_waitstatus *ourstatus;
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{
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{
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int save_errno;
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int save_errno;
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int status;
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int status;
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char *execd_pathname = NULL;
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char *execd_pathname = NULL;
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int exit_status;
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int exit_status;
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int related_pid;
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int related_pid;
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int syscall_id;
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int syscall_id;
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enum target_waitkind kind;
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enum target_waitkind kind;
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do
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do
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{
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{
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set_sigint_trap (); /* Causes SIGINT to be passed on to the
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set_sigint_trap (); /* Causes SIGINT to be passed on to the
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attached process. */
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attached process. */
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set_sigio_trap ();
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set_sigio_trap ();
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pid = ptrace_wait (inferior_pid, &status);
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pid = ptrace_wait (inferior_pid, &status);
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save_errno = errno;
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save_errno = errno;
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clear_sigio_trap ();
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clear_sigio_trap ();
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clear_sigint_trap ();
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clear_sigint_trap ();
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if (pid == -1)
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if (pid == -1)
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{
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{
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if (save_errno == EINTR)
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if (save_errno == EINTR)
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continue;
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continue;
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fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
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fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
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safe_strerror (save_errno));
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safe_strerror (save_errno));
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/* Claim it exited with unknown signal. */
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/* Claim it exited with unknown signal. */
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ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
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ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
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ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
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ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
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return -1;
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return -1;
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}
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}
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/* Did it exit?
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/* Did it exit?
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*/
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*/
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if (target_has_exited (pid, status, &exit_status))
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if (target_has_exited (pid, status, &exit_status))
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{
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{
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/* ??rehrauer: For now, ignore this. */
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/* ??rehrauer: For now, ignore this. */
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continue;
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continue;
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}
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}
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if (!target_thread_alive (pid))
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if (!target_thread_alive (pid))
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{
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{
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ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
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ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
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return pid;
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return pid;
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}
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}
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if (target_has_forked (pid, &related_pid)
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if (target_has_forked (pid, &related_pid)
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&& ((pid == inferior_pid) || (related_pid == inferior_pid)))
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&& ((pid == inferior_pid) || (related_pid == inferior_pid)))
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{
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{
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ourstatus->kind = TARGET_WAITKIND_FORKED;
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ourstatus->kind = TARGET_WAITKIND_FORKED;
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ourstatus->value.related_pid = related_pid;
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ourstatus->value.related_pid = related_pid;
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return pid;
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return pid;
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}
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}
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if (target_has_vforked (pid, &related_pid)
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if (target_has_vforked (pid, &related_pid)
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&& ((pid == inferior_pid) || (related_pid == inferior_pid)))
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&& ((pid == inferior_pid) || (related_pid == inferior_pid)))
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{
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{
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ourstatus->kind = TARGET_WAITKIND_VFORKED;
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ourstatus->kind = TARGET_WAITKIND_VFORKED;
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ourstatus->value.related_pid = related_pid;
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ourstatus->value.related_pid = related_pid;
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return pid;
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return pid;
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}
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}
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if (target_has_execd (pid, &execd_pathname))
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if (target_has_execd (pid, &execd_pathname))
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{
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{
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/* Are we ignoring initial exec events? (This is likely because
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/* Are we ignoring initial exec events? (This is likely because
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we're in the process of starting up the inferior, and another
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we're in the process of starting up the inferior, and another
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(older) mechanism handles those.) If so, we'll report this
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(older) mechanism handles those.) If so, we'll report this
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as a regular stop, not an exec.
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as a regular stop, not an exec.
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*/
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*/
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if (inferior_ignoring_startup_exec_events)
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if (inferior_ignoring_startup_exec_events)
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{
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{
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inferior_ignoring_startup_exec_events--;
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inferior_ignoring_startup_exec_events--;
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}
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}
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else
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else
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{
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{
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ourstatus->kind = TARGET_WAITKIND_EXECD;
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ourstatus->kind = TARGET_WAITKIND_EXECD;
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ourstatus->value.execd_pathname = execd_pathname;
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ourstatus->value.execd_pathname = execd_pathname;
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return pid;
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return pid;
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}
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}
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}
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}
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/* All we must do with these is communicate their occurrence
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/* All we must do with these is communicate their occurrence
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to wait_for_inferior...
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to wait_for_inferior...
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*/
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*/
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if (target_has_syscall_event (pid, &kind, &syscall_id))
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if (target_has_syscall_event (pid, &kind, &syscall_id))
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{
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{
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ourstatus->kind = kind;
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ourstatus->kind = kind;
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ourstatus->value.syscall_id = syscall_id;
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ourstatus->value.syscall_id = syscall_id;
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return pid;
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return pid;
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}
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}
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/*## } while (pid != inferior_pid); ## *//* Some other child died or stopped */
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/*## } while (pid != inferior_pid); ## *//* Some other child died or stopped */
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/* hack for thread testing */
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/* hack for thread testing */
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}
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}
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while ((pid != inferior_pid) && not_same_real_pid);
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while ((pid != inferior_pid) && not_same_real_pid);
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/*## */
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/*## */
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|
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store_waitstatus (ourstatus, status);
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store_waitstatus (ourstatus, status);
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return pid;
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return pid;
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}
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}
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#endif /* CHILD_WAIT */
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#endif /* CHILD_WAIT */
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|
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#if !defined(CHILD_POST_WAIT)
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#if !defined(CHILD_POST_WAIT)
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void
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void
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child_post_wait (pid, wait_status)
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child_post_wait (pid, wait_status)
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int pid;
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int pid;
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int wait_status;
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int wait_status;
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{
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{
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/* This version of Unix doesn't require a meaningful "post wait"
|
/* This version of Unix doesn't require a meaningful "post wait"
|
operation.
|
operation.
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*/
|
*/
|
}
|
}
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#endif
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#endif
|
|
|
|
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#ifndef CHILD_THREAD_ALIVE
|
#ifndef CHILD_THREAD_ALIVE
|
|
|
/* Check to see if the given thread is alive.
|
/* Check to see if the given thread is alive.
|
|
|
FIXME: Is kill() ever the right way to do this? I doubt it, but
|
FIXME: Is kill() ever the right way to do this? I doubt it, but
|
for now we're going to try and be compatable with the old thread
|
for now we're going to try and be compatable with the old thread
|
code. */
|
code. */
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int
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int
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child_thread_alive (pid)
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child_thread_alive (pid)
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int pid;
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int pid;
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{
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{
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return (kill (pid, 0) != -1);
|
return (kill (pid, 0) != -1);
|
}
|
}
|
|
|
#endif
|
#endif
|
|
|
static void
|
static void
|
child_attach_to_process (args, from_tty, after_fork)
|
child_attach_to_process (args, from_tty, after_fork)
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
int after_fork;
|
int after_fork;
|
{
|
{
|
if (!args)
|
if (!args)
|
error_no_arg ("process-id to attach");
|
error_no_arg ("process-id to attach");
|
|
|
#ifndef ATTACH_DETACH
|
#ifndef ATTACH_DETACH
|
error ("Can't attach to a process on this machine.");
|
error ("Can't attach to a process on this machine.");
|
#else
|
#else
|
{
|
{
|
char *exec_file;
|
char *exec_file;
|
int pid;
|
int pid;
|
char *dummy;
|
char *dummy;
|
|
|
dummy = args;
|
dummy = args;
|
pid = strtol (args, &dummy, 0);
|
pid = strtol (args, &dummy, 0);
|
/* Some targets don't set errno on errors, grrr! */
|
/* Some targets don't set errno on errors, grrr! */
|
if ((pid == 0) && (args == dummy))
|
if ((pid == 0) && (args == dummy))
|
error ("Illegal process-id: %s\n", args);
|
error ("Illegal process-id: %s\n", args);
|
|
|
if (pid == getpid ()) /* Trying to masturbate? */
|
if (pid == getpid ()) /* Trying to masturbate? */
|
error ("I refuse to debug myself!");
|
error ("I refuse to debug myself!");
|
|
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
exec_file = (char *) get_exec_file (0);
|
exec_file = (char *) get_exec_file (0);
|
|
|
if (after_fork)
|
if (after_fork)
|
printf_unfiltered ("Attaching after fork to %s\n",
|
printf_unfiltered ("Attaching after fork to %s\n",
|
target_pid_to_str (pid));
|
target_pid_to_str (pid));
|
else if (exec_file)
|
else if (exec_file)
|
printf_unfiltered ("Attaching to program: %s, %s\n", exec_file,
|
printf_unfiltered ("Attaching to program: %s, %s\n", exec_file,
|
target_pid_to_str (pid));
|
target_pid_to_str (pid));
|
else
|
else
|
printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid));
|
printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid));
|
|
|
gdb_flush (gdb_stdout);
|
gdb_flush (gdb_stdout);
|
}
|
}
|
|
|
if (!after_fork)
|
if (!after_fork)
|
attach (pid);
|
attach (pid);
|
else
|
else
|
REQUIRE_ATTACH (pid);
|
REQUIRE_ATTACH (pid);
|
|
|
inferior_pid = pid;
|
inferior_pid = pid;
|
push_target (&child_ops);
|
push_target (&child_ops);
|
}
|
}
|
#endif /* ATTACH_DETACH */
|
#endif /* ATTACH_DETACH */
|
}
|
}
|
|
|
|
|
/* Attach to process PID, then initialize for debugging it. */
|
/* Attach to process PID, then initialize for debugging it. */
|
|
|
static void
|
static void
|
child_attach (args, from_tty)
|
child_attach (args, from_tty)
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
child_attach_to_process (args, from_tty, 0);
|
child_attach_to_process (args, from_tty, 0);
|
}
|
}
|
|
|
#if !defined(CHILD_POST_ATTACH)
|
#if !defined(CHILD_POST_ATTACH)
|
void
|
void
|
child_post_attach (pid)
|
child_post_attach (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't require a meaningful "post attach"
|
/* This version of Unix doesn't require a meaningful "post attach"
|
operation by a debugger. */
|
operation by a debugger. */
|
}
|
}
|
#endif
|
#endif
|
|
|
static void
|
static void
|
child_require_attach (args, from_tty)
|
child_require_attach (args, from_tty)
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
child_attach_to_process (args, from_tty, 1);
|
child_attach_to_process (args, from_tty, 1);
|
}
|
}
|
|
|
static void
|
static void
|
child_detach_from_process (pid, args, from_tty, after_fork)
|
child_detach_from_process (pid, args, from_tty, after_fork)
|
int pid;
|
int pid;
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
int after_fork;
|
int after_fork;
|
{
|
{
|
#ifdef ATTACH_DETACH
|
#ifdef ATTACH_DETACH
|
{
|
{
|
int siggnal = 0;
|
int siggnal = 0;
|
|
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
char *exec_file = get_exec_file (0);
|
char *exec_file = get_exec_file (0);
|
if (exec_file == 0)
|
if (exec_file == 0)
|
exec_file = "";
|
exec_file = "";
|
if (after_fork)
|
if (after_fork)
|
printf_unfiltered ("Detaching after fork from %s\n",
|
printf_unfiltered ("Detaching after fork from %s\n",
|
target_pid_to_str (pid));
|
target_pid_to_str (pid));
|
else
|
else
|
printf_unfiltered ("Detaching from program: %s, %s\n", exec_file,
|
printf_unfiltered ("Detaching from program: %s, %s\n", exec_file,
|
target_pid_to_str (pid));
|
target_pid_to_str (pid));
|
gdb_flush (gdb_stdout);
|
gdb_flush (gdb_stdout);
|
}
|
}
|
if (args)
|
if (args)
|
siggnal = atoi (args);
|
siggnal = atoi (args);
|
|
|
if (!after_fork)
|
if (!after_fork)
|
detach (siggnal);
|
detach (siggnal);
|
else
|
else
|
REQUIRE_DETACH (pid, siggnal);
|
REQUIRE_DETACH (pid, siggnal);
|
}
|
}
|
#else
|
#else
|
error ("This version of Unix does not support detaching a process.");
|
error ("This version of Unix does not support detaching a process.");
|
#endif
|
#endif
|
}
|
}
|
|
|
/* Take a program previously attached to and detaches it.
|
/* Take a program previously attached to and detaches it.
|
The program resumes execution and will no longer stop
|
The program resumes execution and will no longer stop
|
on signals, etc. We'd better not have left any breakpoints
|
on signals, etc. We'd better not have left any breakpoints
|
in the program or it'll die when it hits one. For this
|
in the program or it'll die when it hits one. For this
|
to work, it may be necessary for the process to have been
|
to work, it may be necessary for the process to have been
|
previously attached. It *might* work if the program was
|
previously attached. It *might* work if the program was
|
started via the normal ptrace (PTRACE_TRACEME). */
|
started via the normal ptrace (PTRACE_TRACEME). */
|
|
|
static void
|
static void
|
child_detach (args, from_tty)
|
child_detach (args, from_tty)
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
child_detach_from_process (inferior_pid, args, from_tty, 0);
|
child_detach_from_process (inferior_pid, args, from_tty, 0);
|
inferior_pid = 0;
|
inferior_pid = 0;
|
unpush_target (&child_ops);
|
unpush_target (&child_ops);
|
}
|
}
|
|
|
static void
|
static void
|
child_require_detach (pid, args, from_tty)
|
child_require_detach (pid, args, from_tty)
|
int pid;
|
int pid;
|
char *args;
|
char *args;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
child_detach_from_process (pid, args, from_tty, 1);
|
child_detach_from_process (pid, args, from_tty, 1);
|
}
|
}
|
|
|
|
|
/* Get ready to modify the registers array. On machines which store
|
/* Get ready to modify the registers array. On machines which store
|
individual registers, this doesn't need to do anything. On machines
|
individual registers, this doesn't need to do anything. On machines
|
which store all the registers in one fell swoop, this makes sure
|
which store all the registers in one fell swoop, this makes sure
|
that registers contains all the registers from the program being
|
that registers contains all the registers from the program being
|
debugged. */
|
debugged. */
|
|
|
static void
|
static void
|
child_prepare_to_store ()
|
child_prepare_to_store ()
|
{
|
{
|
#ifdef CHILD_PREPARE_TO_STORE
|
#ifdef CHILD_PREPARE_TO_STORE
|
CHILD_PREPARE_TO_STORE ();
|
CHILD_PREPARE_TO_STORE ();
|
#endif
|
#endif
|
}
|
}
|
|
|
/* Print status information about what we're accessing. */
|
/* Print status information about what we're accessing. */
|
|
|
static void
|
static void
|
child_files_info (ignore)
|
child_files_info (ignore)
|
struct target_ops *ignore;
|
struct target_ops *ignore;
|
{
|
{
|
printf_unfiltered ("\tUsing the running image of %s %s.\n",
|
printf_unfiltered ("\tUsing the running image of %s %s.\n",
|
attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
|
attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
|
}
|
}
|
|
|
/* ARGSUSED */
|
/* ARGSUSED */
|
static void
|
static void
|
child_open (arg, from_tty)
|
child_open (arg, from_tty)
|
char *arg;
|
char *arg;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
error ("Use the \"run\" command to start a Unix child process.");
|
error ("Use the \"run\" command to start a Unix child process.");
|
}
|
}
|
|
|
/* Stub function which causes the inferior that runs it, to be ptrace-able
|
/* Stub function which causes the inferior that runs it, to be ptrace-able
|
by its parent process. */
|
by its parent process. */
|
|
|
static void
|
static void
|
ptrace_me ()
|
ptrace_me ()
|
{
|
{
|
/* "Trace me, Dr. Memory!" */
|
/* "Trace me, Dr. Memory!" */
|
call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0);
|
call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0);
|
}
|
}
|
|
|
/* Stub function which causes the GDB that runs it, to start ptrace-ing
|
/* Stub function which causes the GDB that runs it, to start ptrace-ing
|
the child process. */
|
the child process. */
|
|
|
static void
|
static void
|
ptrace_him (pid)
|
ptrace_him (pid)
|
int pid;
|
int pid;
|
{
|
{
|
push_target (&child_ops);
|
push_target (&child_ops);
|
|
|
/* On some targets, there must be some explicit synchronization
|
/* On some targets, there must be some explicit synchronization
|
between the parent and child processes after the debugger
|
between the parent and child processes after the debugger
|
forks, and before the child execs the debuggee program. This
|
forks, and before the child execs the debuggee program. This
|
call basically gives permission for the child to exec.
|
call basically gives permission for the child to exec.
|
*/
|
*/
|
|
|
target_acknowledge_created_inferior (pid);
|
target_acknowledge_created_inferior (pid);
|
|
|
/* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h,
|
/* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h,
|
* and will be 1 or 2 depending on whether we're starting
|
* and will be 1 or 2 depending on whether we're starting
|
* without or with a shell.
|
* without or with a shell.
|
*/
|
*/
|
startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
|
startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
|
|
|
/* On some targets, there must be some explicit actions taken after
|
/* On some targets, there must be some explicit actions taken after
|
the inferior has been started up.
|
the inferior has been started up.
|
*/
|
*/
|
target_post_startup_inferior (pid);
|
target_post_startup_inferior (pid);
|
}
|
}
|
|
|
/* Start an inferior Unix child process and sets inferior_pid to its pid.
|
/* Start an inferior Unix child process and sets inferior_pid to its pid.
|
EXEC_FILE is the file to run.
|
EXEC_FILE is the file to run.
|
ALLARGS is a string containing the arguments to the program.
|
ALLARGS is a string containing the arguments to the program.
|
ENV is the environment vector to pass. Errors reported with error(). */
|
ENV is the environment vector to pass. Errors reported with error(). */
|
|
|
static void
|
static void
|
child_create_inferior (exec_file, allargs, env)
|
child_create_inferior (exec_file, allargs, env)
|
char *exec_file;
|
char *exec_file;
|
char *allargs;
|
char *allargs;
|
char **env;
|
char **env;
|
{
|
{
|
#ifdef HPUXHPPA
|
#ifdef HPUXHPPA
|
fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, NULL);
|
fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, NULL);
|
#else
|
#else
|
fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, NULL, NULL);
|
fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, NULL, NULL);
|
#endif
|
#endif
|
/* We are at the first instruction we care about. */
|
/* We are at the first instruction we care about. */
|
/* Pedal to the metal... */
|
/* Pedal to the metal... */
|
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
|
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
|
}
|
}
|
|
|
#if !defined(CHILD_POST_STARTUP_INFERIOR)
|
#if !defined(CHILD_POST_STARTUP_INFERIOR)
|
void
|
void
|
child_post_startup_inferior (pid)
|
child_post_startup_inferior (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't require a meaningful "post startup inferior"
|
/* This version of Unix doesn't require a meaningful "post startup inferior"
|
operation by a debugger.
|
operation by a debugger.
|
*/
|
*/
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR)
|
#if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR)
|
void
|
void
|
child_acknowledge_created_inferior (pid)
|
child_acknowledge_created_inferior (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't require a meaningful "acknowledge created inferior"
|
/* This version of Unix doesn't require a meaningful "acknowledge created inferior"
|
operation by a debugger.
|
operation by a debugger.
|
*/
|
*/
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
void
|
void
|
child_clone_and_follow_inferior (child_pid, followed_child)
|
child_clone_and_follow_inferior (child_pid, followed_child)
|
int child_pid;
|
int child_pid;
|
int *followed_child;
|
int *followed_child;
|
{
|
{
|
clone_and_follow_inferior (child_pid, followed_child);
|
clone_and_follow_inferior (child_pid, followed_child);
|
|
|
/* Don't resume CHILD_PID; it's stopped where it ought to be, until
|
/* Don't resume CHILD_PID; it's stopped where it ought to be, until
|
the decision gets made elsewhere how to continue it.
|
the decision gets made elsewhere how to continue it.
|
*/
|
*/
|
}
|
}
|
|
|
|
|
#if !defined(CHILD_POST_FOLLOW_INFERIOR_BY_CLONE)
|
#if !defined(CHILD_POST_FOLLOW_INFERIOR_BY_CLONE)
|
void
|
void
|
child_post_follow_inferior_by_clone ()
|
child_post_follow_inferior_by_clone ()
|
{
|
{
|
/* This version of Unix doesn't require a meaningful "post follow inferior"
|
/* This version of Unix doesn't require a meaningful "post follow inferior"
|
operation by a clone debugger.
|
operation by a clone debugger.
|
*/
|
*/
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_INSERT_FORK_CATCHPOINT)
|
#if !defined(CHILD_INSERT_FORK_CATCHPOINT)
|
int
|
int
|
child_insert_fork_catchpoint (pid)
|
child_insert_fork_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of fork events. */
|
/* This version of Unix doesn't support notification of fork events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_REMOVE_FORK_CATCHPOINT)
|
#if !defined(CHILD_REMOVE_FORK_CATCHPOINT)
|
int
|
int
|
child_remove_fork_catchpoint (pid)
|
child_remove_fork_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of fork events. */
|
/* This version of Unix doesn't support notification of fork events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_INSERT_VFORK_CATCHPOINT)
|
#if !defined(CHILD_INSERT_VFORK_CATCHPOINT)
|
int
|
int
|
child_insert_vfork_catchpoint (pid)
|
child_insert_vfork_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of vfork events. */
|
/* This version of Unix doesn't support notification of vfork events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_REMOVE_VFORK_CATCHPOINT)
|
#if !defined(CHILD_REMOVE_VFORK_CATCHPOINT)
|
int
|
int
|
child_remove_vfork_catchpoint (pid)
|
child_remove_vfork_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of vfork events. */
|
/* This version of Unix doesn't support notification of vfork events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_HAS_FORKED)
|
#if !defined(CHILD_HAS_FORKED)
|
int
|
int
|
child_has_forked (pid, child_pid)
|
child_has_forked (pid, child_pid)
|
int pid;
|
int pid;
|
int *child_pid;
|
int *child_pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of fork events. */
|
/* This version of Unix doesn't support notification of fork events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_HAS_VFORKED)
|
#if !defined(CHILD_HAS_VFORKED)
|
int
|
int
|
child_has_vforked (pid, child_pid)
|
child_has_vforked (pid, child_pid)
|
int pid;
|
int pid;
|
int *child_pid;
|
int *child_pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of vfork events.
|
/* This version of Unix doesn't support notification of vfork events.
|
*/
|
*/
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_CAN_FOLLOW_VFORK_PRIOR_TO_EXEC)
|
#if !defined(CHILD_CAN_FOLLOW_VFORK_PRIOR_TO_EXEC)
|
int
|
int
|
child_can_follow_vfork_prior_to_exec ()
|
child_can_follow_vfork_prior_to_exec ()
|
{
|
{
|
/* This version of Unix doesn't support notification of vfork events.
|
/* This version of Unix doesn't support notification of vfork events.
|
However, if it did, it probably wouldn't allow vforks to be followed
|
However, if it did, it probably wouldn't allow vforks to be followed
|
before the following exec.
|
before the following exec.
|
*/
|
*/
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_POST_FOLLOW_VFORK)
|
#if !defined(CHILD_POST_FOLLOW_VFORK)
|
void
|
void
|
child_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child)
|
child_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child)
|
int parent_pid;
|
int parent_pid;
|
int followed_parent;
|
int followed_parent;
|
int child_pid;
|
int child_pid;
|
int followed_child;
|
int followed_child;
|
{
|
{
|
/* This version of Unix doesn't require a meaningful "post follow vfork"
|
/* This version of Unix doesn't require a meaningful "post follow vfork"
|
operation by a clone debugger.
|
operation by a clone debugger.
|
*/
|
*/
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_INSERT_EXEC_CATCHPOINT)
|
#if !defined(CHILD_INSERT_EXEC_CATCHPOINT)
|
int
|
int
|
child_insert_exec_catchpoint (pid)
|
child_insert_exec_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of exec events. */
|
/* This version of Unix doesn't support notification of exec events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_REMOVE_EXEC_CATCHPOINT)
|
#if !defined(CHILD_REMOVE_EXEC_CATCHPOINT)
|
int
|
int
|
child_remove_exec_catchpoint (pid)
|
child_remove_exec_catchpoint (pid)
|
int pid;
|
int pid;
|
{
|
{
|
/* This version of Unix doesn't support notification of exec events. */
|
/* This version of Unix doesn't support notification of exec events. */
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !defined(CHILD_HAS_EXECD)
|
#if !defined(CHILD_HAS_EXECD)
|
int
|
int
|
child_has_execd (pid, execd_pathname)
|
child_has_execd (pid, execd_pathname)
|
int pid;
|
int pid;
|
char **execd_pathname;
|
char **execd_pathname;
|
{
|
{
|
/* This version of Unix doesn't support notification of exec events.
|
/* This version of Unix doesn't support notification of exec events.
|
*/
|
*/
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL)
|
#if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL)
|
int
|
int
|
child_reported_exec_events_per_exec_call ()
|
child_reported_exec_events_per_exec_call ()
|
{
|
{
|
/* This version of Unix doesn't support notification of exec events.
|
/* This version of Unix doesn't support notification of exec events.
|
*/
|
*/
|
return 1;
|
return 1;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_HAS_SYSCALL_EVENT)
|
#if !defined(CHILD_HAS_SYSCALL_EVENT)
|
int
|
int
|
child_has_syscall_event (pid, kind, syscall_id)
|
child_has_syscall_event (pid, kind, syscall_id)
|
int pid;
|
int pid;
|
enum target_waitkind *kind;
|
enum target_waitkind *kind;
|
int *syscall_id;
|
int *syscall_id;
|
{
|
{
|
/* This version of Unix doesn't support notification of syscall events.
|
/* This version of Unix doesn't support notification of syscall events.
|
*/
|
*/
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
#if !defined(CHILD_HAS_EXITED)
|
#if !defined(CHILD_HAS_EXITED)
|
int
|
int
|
child_has_exited (pid, wait_status, exit_status)
|
child_has_exited (pid, wait_status, exit_status)
|
int pid;
|
int pid;
|
int wait_status;
|
int wait_status;
|
int *exit_status;
|
int *exit_status;
|
{
|
{
|
if (WIFEXITED (wait_status))
|
if (WIFEXITED (wait_status))
|
{
|
{
|
*exit_status = WEXITSTATUS (wait_status);
|
*exit_status = WEXITSTATUS (wait_status);
|
return 1;
|
return 1;
|
}
|
}
|
|
|
if (WIFSIGNALED (wait_status))
|
if (WIFSIGNALED (wait_status))
|
{
|
{
|
*exit_status = 0; /* ?? Don't know what else to say here. */
|
*exit_status = 0; /* ?? Don't know what else to say here. */
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* ?? Do we really need to consult the event state, too? Assume the
|
/* ?? Do we really need to consult the event state, too? Assume the
|
wait_state alone suffices.
|
wait_state alone suffices.
|
*/
|
*/
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
static void
|
static void
|
child_mourn_inferior ()
|
child_mourn_inferior ()
|
{
|
{
|
unpush_target (&child_ops);
|
unpush_target (&child_ops);
|
generic_mourn_inferior ();
|
generic_mourn_inferior ();
|
}
|
}
|
|
|
static int
|
static int
|
child_can_run ()
|
child_can_run ()
|
{
|
{
|
/* This variable is controlled by modules that sit atop inftarg that may layer
|
/* This variable is controlled by modules that sit atop inftarg that may layer
|
their own process structure atop that provided here. hpux-thread.c does
|
their own process structure atop that provided here. hpux-thread.c does
|
this because of the Hpux user-mode level thread model. */
|
this because of the Hpux user-mode level thread model. */
|
|
|
return !child_suppress_run;
|
return !child_suppress_run;
|
}
|
}
|
|
|
/* Send a SIGINT to the process group. This acts just like the user typed a
|
/* Send a SIGINT to the process group. This acts just like the user typed a
|
^C on the controlling terminal.
|
^C on the controlling terminal.
|
|
|
XXX - This may not be correct for all systems. Some may want to use
|
XXX - This may not be correct for all systems. Some may want to use
|
killpg() instead of kill (-pgrp). */
|
killpg() instead of kill (-pgrp). */
|
|
|
static void
|
static void
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child_stop ()
|
child_stop ()
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{
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{
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extern pid_t inferior_process_group;
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extern pid_t inferior_process_group;
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|
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kill (-inferior_process_group, SIGINT);
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kill (-inferior_process_group, SIGINT);
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}
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}
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|
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#if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK)
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#if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK)
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struct symtab_and_line *
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struct symtab_and_line *
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child_enable_exception_callback (kind, enable)
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child_enable_exception_callback (kind, enable)
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enum exception_event_kind kind;
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enum exception_event_kind kind;
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int enable;
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int enable;
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{
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{
|
return (struct symtab_and_line *) NULL;
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return (struct symtab_and_line *) NULL;
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}
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}
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#endif
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#endif
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|
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#if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT)
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#if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT)
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struct exception_event_record *
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struct exception_event_record *
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child_get_current_exception_event ()
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child_get_current_exception_event ()
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{
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{
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return (struct exception_event_record *) NULL;
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return (struct exception_event_record *) NULL;
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}
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}
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#endif
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#endif
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|
|
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#if !defined(CHILD_PID_TO_EXEC_FILE)
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#if !defined(CHILD_PID_TO_EXEC_FILE)
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char *
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char *
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child_pid_to_exec_file (pid)
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child_pid_to_exec_file (pid)
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int pid;
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int pid;
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{
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{
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/* This version of Unix doesn't support translation of a process ID
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/* This version of Unix doesn't support translation of a process ID
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to the filename of the executable file.
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to the filename of the executable file.
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*/
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*/
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return NULL;
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return NULL;
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}
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}
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#endif
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#endif
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|
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char *
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char *
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child_core_file_to_sym_file (core)
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child_core_file_to_sym_file (core)
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char *core;
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char *core;
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{
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{
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/* The target stratum for a running executable need not support
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/* The target stratum for a running executable need not support
|
this operation.
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this operation.
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*/
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*/
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return NULL;
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return NULL;
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}
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}
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|
|
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#if !defined(CHILD_PID_TO_STR)
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#if !defined(CHILD_PID_TO_STR)
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char *
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char *
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child_pid_to_str (pid)
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child_pid_to_str (pid)
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int pid;
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int pid;
|
{
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{
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return normal_pid_to_str (pid);
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return normal_pid_to_str (pid);
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}
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}
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#endif
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#endif
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|
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static void
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static void
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init_child_ops ()
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init_child_ops ()
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{
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{
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child_ops.to_shortname = "child";
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child_ops.to_shortname = "child";
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child_ops.to_longname = "Unix child process";
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child_ops.to_longname = "Unix child process";
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child_ops.to_doc = "Unix child process (started by the \"run\" command).";
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child_ops.to_doc = "Unix child process (started by the \"run\" command).";
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child_ops.to_open = child_open;
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child_ops.to_open = child_open;
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child_ops.to_attach = child_attach;
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child_ops.to_attach = child_attach;
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child_ops.to_post_attach = child_post_attach;
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child_ops.to_post_attach = child_post_attach;
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child_ops.to_require_attach = child_require_attach;
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child_ops.to_require_attach = child_require_attach;
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child_ops.to_detach = child_detach;
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child_ops.to_detach = child_detach;
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child_ops.to_require_detach = child_require_detach;
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child_ops.to_require_detach = child_require_detach;
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child_ops.to_resume = child_resume;
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child_ops.to_resume = child_resume;
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child_ops.to_wait = child_wait;
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child_ops.to_wait = child_wait;
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child_ops.to_post_wait = child_post_wait;
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child_ops.to_post_wait = child_post_wait;
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child_ops.to_fetch_registers = fetch_inferior_registers;
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child_ops.to_fetch_registers = fetch_inferior_registers;
|
child_ops.to_store_registers = store_inferior_registers;
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child_ops.to_store_registers = store_inferior_registers;
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child_ops.to_prepare_to_store = child_prepare_to_store;
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child_ops.to_prepare_to_store = child_prepare_to_store;
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child_ops.to_xfer_memory = child_xfer_memory;
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child_ops.to_xfer_memory = child_xfer_memory;
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child_ops.to_files_info = child_files_info;
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child_ops.to_files_info = child_files_info;
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child_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
child_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
child_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
child_ops.to_remove_breakpoint = memory_remove_breakpoint;
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child_ops.to_terminal_init = terminal_init_inferior;
|
child_ops.to_terminal_init = terminal_init_inferior;
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child_ops.to_terminal_inferior = terminal_inferior;
|
child_ops.to_terminal_inferior = terminal_inferior;
|
child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
child_ops.to_terminal_ours = terminal_ours;
|
child_ops.to_terminal_ours = terminal_ours;
|
child_ops.to_terminal_info = child_terminal_info;
|
child_ops.to_terminal_info = child_terminal_info;
|
child_ops.to_kill = kill_inferior;
|
child_ops.to_kill = kill_inferior;
|
child_ops.to_create_inferior = child_create_inferior;
|
child_ops.to_create_inferior = child_create_inferior;
|
child_ops.to_post_startup_inferior = child_post_startup_inferior;
|
child_ops.to_post_startup_inferior = child_post_startup_inferior;
|
child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior;
|
child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior;
|
child_ops.to_clone_and_follow_inferior = child_clone_and_follow_inferior;
|
child_ops.to_clone_and_follow_inferior = child_clone_and_follow_inferior;
|
child_ops.to_post_follow_inferior_by_clone = child_post_follow_inferior_by_clone;
|
child_ops.to_post_follow_inferior_by_clone = child_post_follow_inferior_by_clone;
|
child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint;
|
child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint;
|
child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint;
|
child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint;
|
child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint;
|
child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint;
|
child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint;
|
child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint;
|
child_ops.to_has_forked = child_has_forked;
|
child_ops.to_has_forked = child_has_forked;
|
child_ops.to_has_vforked = child_has_vforked;
|
child_ops.to_has_vforked = child_has_vforked;
|
child_ops.to_can_follow_vfork_prior_to_exec = child_can_follow_vfork_prior_to_exec;
|
child_ops.to_can_follow_vfork_prior_to_exec = child_can_follow_vfork_prior_to_exec;
|
child_ops.to_post_follow_vfork = child_post_follow_vfork;
|
child_ops.to_post_follow_vfork = child_post_follow_vfork;
|
child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint;
|
child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint;
|
child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint;
|
child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint;
|
child_ops.to_has_execd = child_has_execd;
|
child_ops.to_has_execd = child_has_execd;
|
child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call;
|
child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call;
|
child_ops.to_has_syscall_event = child_has_syscall_event;
|
child_ops.to_has_syscall_event = child_has_syscall_event;
|
child_ops.to_has_exited = child_has_exited;
|
child_ops.to_has_exited = child_has_exited;
|
child_ops.to_mourn_inferior = child_mourn_inferior;
|
child_ops.to_mourn_inferior = child_mourn_inferior;
|
child_ops.to_can_run = child_can_run;
|
child_ops.to_can_run = child_can_run;
|
child_ops.to_thread_alive = child_thread_alive;
|
child_ops.to_thread_alive = child_thread_alive;
|
child_ops.to_pid_to_str = child_pid_to_str;
|
child_ops.to_pid_to_str = child_pid_to_str;
|
child_ops.to_stop = child_stop;
|
child_ops.to_stop = child_stop;
|
child_ops.to_enable_exception_callback = child_enable_exception_callback;
|
child_ops.to_enable_exception_callback = child_enable_exception_callback;
|
child_ops.to_get_current_exception_event = child_get_current_exception_event;
|
child_ops.to_get_current_exception_event = child_get_current_exception_event;
|
child_ops.to_pid_to_exec_file = child_pid_to_exec_file;
|
child_ops.to_pid_to_exec_file = child_pid_to_exec_file;
|
child_ops.to_core_file_to_sym_file = child_core_file_to_sym_file;
|
child_ops.to_core_file_to_sym_file = child_core_file_to_sym_file;
|
child_ops.to_stratum = process_stratum;
|
child_ops.to_stratum = process_stratum;
|
child_ops.to_has_all_memory = 1;
|
child_ops.to_has_all_memory = 1;
|
child_ops.to_has_memory = 1;
|
child_ops.to_has_memory = 1;
|
child_ops.to_has_stack = 1;
|
child_ops.to_has_stack = 1;
|
child_ops.to_has_registers = 1;
|
child_ops.to_has_registers = 1;
|
child_ops.to_has_execution = 1;
|
child_ops.to_has_execution = 1;
|
child_ops.to_magic = OPS_MAGIC;
|
child_ops.to_magic = OPS_MAGIC;
|
}
|
}
|
|
|
void
|
void
|
_initialize_inftarg ()
|
_initialize_inftarg ()
|
{
|
{
|
#ifdef HAVE_OPTIONAL_PROC_FS
|
#ifdef HAVE_OPTIONAL_PROC_FS
|
char procname[32];
|
char procname[32];
|
int fd;
|
int fd;
|
|
|
/* If we have an optional /proc filesystem (e.g. under OSF/1),
|
/* If we have an optional /proc filesystem (e.g. under OSF/1),
|
don't add ptrace support if we can access the running GDB via /proc. */
|
don't add ptrace support if we can access the running GDB via /proc. */
|
#ifndef PROC_NAME_FMT
|
#ifndef PROC_NAME_FMT
|
#define PROC_NAME_FMT "/proc/%05d"
|
#define PROC_NAME_FMT "/proc/%05d"
|
#endif
|
#endif
|
sprintf (procname, PROC_NAME_FMT, getpid ());
|
sprintf (procname, PROC_NAME_FMT, getpid ());
|
if ((fd = open (procname, O_RDONLY)) >= 0)
|
if ((fd = open (procname, O_RDONLY)) >= 0)
|
{
|
{
|
close (fd);
|
close (fd);
|
return;
|
return;
|
}
|
}
|
#endif
|
#endif
|
|
|
init_child_ops ();
|
init_child_ops ();
|
add_target (&child_ops);
|
add_target (&child_ops);
|
}
|
}
|
|
|
