/* Target-vector operations for controlling Unix child processes, for GDB.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996
- Free Software Foundation, Inc.
+
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
+ 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
+
Contributed by Cygnus Support.
-## Contains temporary hacks..
+ ## Contains temporary hacks..
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
-#include "frame.h" /* required by inferior.h */
+#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
+#include "observer.h"
+#include "gdb_wait.h"
+#include "inflow.h"
-#ifdef HAVE_WAIT_H
-# include <wait.h>
-#else
-# ifdef HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-# endif
-#endif
+extern struct symtab_and_line *child_enable_exception_callback (enum
+ exception_event_kind,
+ int);
-/* "wait.h" fills in the gaps left by <wait.h> */
-#include "wait.h"
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+extern struct exception_event_record
+ *child_get_current_exception_event (void);
-extern struct symtab_and_line *
-child_enable_exception_callback PARAMS ((enum exception_event_kind, int));
+extern void _initialize_inftarg (void);
-extern struct exception_event_record *
-child_get_current_exception_event PARAMS ((void));
-
-static void
-child_prepare_to_store PARAMS ((void));
+static void child_prepare_to_store (void);
#ifndef CHILD_WAIT
-static int child_wait PARAMS ((int, struct target_waitstatus *));
+static ptid_t child_wait (ptid_t, struct target_waitstatus *);
#endif /* CHILD_WAIT */
-#if !defined(CHILD_POST_WAIT)
-void
-child_post_wait PARAMS ((int, int));
-#endif
+static void child_open (char *, int);
-static void child_open PARAMS ((char *, int));
+static void child_files_info (struct target_ops *);
-static void
-child_files_info PARAMS ((struct target_ops *));
+static void child_detach (char *, int);
-static void
-child_detach PARAMS ((char *, int));
-
-static void
-child_detach_from_process PARAMS ((int, char *, int, int));
-
-static void
-child_attach PARAMS ((char *, int));
-
-static void
-child_attach_to_process PARAMS ((char *, int, int));
+static void child_attach (char *, int);
#if !defined(CHILD_POST_ATTACH)
-static void
-child_post_attach PARAMS ((int));
+extern void child_post_attach (int);
#endif
-static void
-child_require_attach PARAMS ((char *, int));
-
-static void
-child_require_detach PARAMS ((int, char *, int));
-
-static void
-ptrace_me PARAMS ((void));
+static void ptrace_me (void);
-static void
-ptrace_him PARAMS ((int));
+static void ptrace_him (int);
-static void
-child_create_inferior PARAMS ((char *, char *, char **));
+static void child_create_inferior (char *, char *, char **, int);
-static void
-child_mourn_inferior PARAMS ((void));
+static void child_mourn_inferior (void);
-static int
-child_can_run PARAMS ((void));
+static int child_can_run (void);
-static void
-child_stop PARAMS ((void));
+static void child_stop (void);
#ifndef CHILD_THREAD_ALIVE
-int child_thread_alive PARAMS ((int));
+int child_thread_alive (ptid_t);
#endif
-extern char **environ;
+static void init_child_ops (void);
-/* Forward declaration */
-extern struct target_ops child_ops;
+extern char **environ;
int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to
be a runnable target. Used by targets
#ifndef CHILD_WAIT
-/*##*/
-/* Enable HACK for ttrace work. In
- * infttrace.c/require_notification_of_events,
- * this is set to 0 so that the loop in child_wait
- * won't loop.
- */
-int not_same_real_pid = 1;
-/*##*/
-
-
/* Wait for child to do something. Return pid of child, or -1 in case
of error; store status through argument pointer OURSTATUS. */
-static int
-child_wait (pid, ourstatus)
- int pid;
- struct target_waitstatus *ourstatus;
+static ptid_t
+child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
int save_errno;
int status;
- char * execd_pathname;
- int exit_status;
- int related_pid;
- int syscall_id;
- enum target_waitkind kind;
+ char *execd_pathname = NULL;
+ int exit_status;
+ int related_pid;
+ int syscall_id;
+ enum target_waitkind kind;
+ int pid;
+
+ do
+ {
+ set_sigint_trap (); /* Causes SIGINT to be passed on to the
+ attached process. */
+ set_sigio_trap ();
- do {
- set_sigint_trap(); /* Causes SIGINT to be passed on to the
- attached process. */
- set_sigio_trap ();
+ pid = wait (&status);
- pid = proc_wait (inferior_pid, &status);
+ save_errno = errno;
- save_errno = errno;
+ clear_sigio_trap ();
- clear_sigio_trap ();
+ clear_sigint_trap ();
- clear_sigint_trap();
+ if (pid == -1)
+ {
+ if (save_errno == EINTR)
+ continue;
- if (pid == -1)
- {
- if (save_errno == EINTR)
- continue;
+ fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
+ safe_strerror (save_errno));
- fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
- safe_strerror (save_errno));
-
- /* Claim it exited with unknown signal. */
- ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
- ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- return -1;
- }
-
- /* Did it exit?
- */
- if (target_has_exited (pid, status, &exit_status))
- {
- /* ??rehrauer: For now, ignore this. */
- continue;
- }
-
- if (!target_thread_alive (pid))
- {
- ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
- return pid;
- }
-
- if (target_has_forked (pid, &related_pid)
- && (pid == inferior_pid) || (related_pid == inferior_pid))
- {
- ourstatus->kind = TARGET_WAITKIND_FORKED;
- ourstatus->value.related_pid = related_pid;
- return pid;
- }
-
- if (target_has_vforked (pid, &related_pid)
- && (pid == inferior_pid) || (related_pid == inferior_pid))
- {
- ourstatus->kind = TARGET_WAITKIND_VFORKED;
- ourstatus->value.related_pid = related_pid;
- return pid;
- }
-
- if (target_has_execd (pid, &execd_pathname))
- {
- /* Are we ignoring initial exec events? (This is likely because
- we're in the process of starting up the inferior, and another
- (older) mechanism handles those.) If so, we'll report this
- as a regular stop, not an exec.
- */
- if (inferior_ignoring_startup_exec_events)
- {
- inferior_ignoring_startup_exec_events--;
- }
- else
- {
- ourstatus->kind = TARGET_WAITKIND_EXECD;
- ourstatus->value.execd_pathname = execd_pathname;
- return pid;
- }
- }
-
- /* All we must do with these is communicate their occurrence
- to wait_for_inferior...
+ /* Claim it exited with unknown signal. */
+ ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
+ ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
+ return pid_to_ptid (-1);
+ }
+
+ /* Did it exit?
*/
- if (target_has_syscall_event (pid, &kind, &syscall_id))
- {
- ourstatus->kind = kind;
- ourstatus->value.syscall_id = syscall_id;
- return pid;
- }
-
-/*## } while (pid != inferior_pid); ##*/ /* Some other child died or stopped */
-/* hack for thread testing */
- } while( (pid != inferior_pid) && not_same_real_pid );
-/*##*/
+ if (target_has_exited (pid, status, &exit_status))
+ {
+ /* ??rehrauer: For now, ignore this. */
+ continue;
+ }
+
+ if (!target_thread_alive (pid_to_ptid (pid)))
+ {
+ ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
+ return pid_to_ptid (pid);
+ }
+ } while (pid != PIDGET (inferior_ptid)); /* Some other child died or stopped */
store_waitstatus (ourstatus, status);
- return pid;
+ return pid_to_ptid (pid);
}
#endif /* CHILD_WAIT */
-#if !defined(CHILD_POST_WAIT)
-void
-child_post_wait (pid, wait_status)
- int pid;
- int wait_status;
-{
- /* This version of Unix doesn't require a meaningful "post wait"
- operation.
- */
-}
-#endif
-
-
#ifndef CHILD_THREAD_ALIVE
/* Check to see if the given thread is alive.
for now we're going to try and be compatable with the old thread
code. */
int
-child_thread_alive (pid)
- int pid;
+child_thread_alive (ptid_t ptid)
{
+ pid_t pid = PIDGET (ptid);
+
return (kill (pid, 0) != -1);
}
#endif
+/* Attach to process PID, then initialize for debugging it. */
+
static void
-child_attach_to_process (args, from_tty, after_fork)
- char * args;
- int from_tty;
- int after_fork;
+child_attach (char *args, int from_tty)
{
+ char *exec_file;
+ int pid;
+ char *dummy;
+
if (!args)
error_no_arg ("process-id to attach");
-#ifndef ATTACH_DETACH
- error ("Can't attach to a process on this machine.");
-#else
- {
- char *exec_file;
- int pid;
- struct target_waitstatus *wstatus;
- char * dummy;
-
- dummy = args;
- pid = strtol (args, &dummy, 0);
- /* Some targets don't set errno on errors, grrr! */
- if ((pid == 0) && (args == dummy))
+ dummy = args;
+ pid = strtol (args, &dummy, 0);
+ /* Some targets don't set errno on errors, grrr! */
+ if ((pid == 0) && (args == dummy))
error ("Illegal process-id: %s\n", args);
+
+ if (pid == getpid ()) /* Trying to masturbate? */
+ error ("I refuse to debug myself!");
+
+ if (from_tty)
+ {
+ exec_file = (char *) get_exec_file (0);
+
+ if (exec_file)
+ printf_unfiltered ("Attaching to program: %s, %s\n", exec_file,
+ target_pid_to_str (pid_to_ptid (pid)));
+ else
+ printf_unfiltered ("Attaching to %s\n",
+ target_pid_to_str (pid_to_ptid (pid)));
+
+ gdb_flush (gdb_stdout);
+ }
- if (pid == getpid()) /* Trying to masturbate? */
- error ("I refuse to debug myself!");
-
- if (from_tty)
- {
- exec_file = (char *) get_exec_file (0);
-
- if (after_fork)
- printf_unfiltered ("Attaching after fork to %s\n",
- target_pid_to_str (pid));
- else if (exec_file)
- printf_unfiltered ("Attaching to program: %s, %s\n", exec_file,
- target_pid_to_str (pid));
- else
- printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid));
-
- gdb_flush (gdb_stdout);
- }
-
- if (!after_fork)
- attach (pid);
- else
- REQUIRE_ATTACH (pid);
-
- inferior_pid = pid;
- push_target (&child_ops);
- }
-#endif /* ATTACH_DETACH */
-}
-
-
-/* Attach to process PID, then initialize for debugging it. */
+ attach (pid);
+
+ inferior_ptid = pid_to_ptid (pid);
+ push_target (&deprecated_child_ops);
-static void
-child_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- child_attach_to_process (args, from_tty, 0);
+ /* Do this first, before anything has had a chance to query the
+ inferior's symbol table or similar. */
+ observer_notify_inferior_created (¤t_target, from_tty);
}
#if !defined(CHILD_POST_ATTACH)
-static void
-child_post_attach (pid)
- int pid;
+void
+child_post_attach (int pid)
{
/* This version of Unix doesn't require a meaningful "post attach"
- operation by a debugger.
- */
+ operation by a debugger. */
}
#endif
-
-static void
-child_require_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- child_attach_to_process (args, from_tty, 1);
-}
-
-static void
-child_detach_from_process (pid, args, from_tty, after_fork)
- int pid;
- char * args;
- int from_tty;
- int after_fork;
-{
-#ifdef ATTACH_DETACH
- {
- int siggnal = 0;
-
- if (from_tty)
- {
- char *exec_file = get_exec_file (0);
- if (exec_file == 0)
- exec_file = "";
- if (after_fork)
- printf_unfiltered ("Detaching after fork from %s\n",
- target_pid_to_str (pid));
- else
- printf_unfiltered ("Detaching from program: %s, %s\n", exec_file,
- target_pid_to_str (pid));
- gdb_flush (gdb_stdout);
- }
- if (args)
- siggnal = atoi (args);
-
- if (!after_fork)
- detach (siggnal);
- else
- REQUIRE_DETACH (pid, siggnal);
- }
-#else
- error ("This version of Unix does not support detaching a process.");
-#endif
-}
-
/* Take a program previously attached to and detaches it.
The program resumes execution and will no longer stop
on signals, etc. We'd better not have left any breakpoints
started via the normal ptrace (PTRACE_TRACEME). */
static void
-child_detach (args, from_tty)
- char *args;
- int from_tty;
+child_detach (char *args, int from_tty)
{
- child_detach_from_process (inferior_pid, args, from_tty, 0);
- inferior_pid = 0;
- unpush_target (&child_ops);
-}
-
-static void
-child_require_detach (pid, args, from_tty)
- int pid;
- char * args;
- int from_tty;
-{
- child_detach_from_process (pid, args, from_tty, 1);
+ int siggnal = 0;
+ int pid = PIDGET (inferior_ptid);
+
+ if (from_tty)
+ {
+ char *exec_file = get_exec_file (0);
+ if (exec_file == 0)
+ exec_file = "";
+ printf_unfiltered ("Detaching from program: %s, %s\n", exec_file,
+ target_pid_to_str (pid_to_ptid (pid)));
+ gdb_flush (gdb_stdout);
+ }
+ if (args)
+ siggnal = atoi (args);
+
+ detach (siggnal);
+
+ inferior_ptid = null_ptid;
+ unpush_target (&deprecated_child_ops);
}
-
/* Get ready to modify the registers array. On machines which store
individual registers, this doesn't need to do anything. On machines
which store all the registers in one fell swoop, this makes sure
debugged. */
static void
-child_prepare_to_store ()
+child_prepare_to_store (void)
{
#ifdef CHILD_PREPARE_TO_STORE
CHILD_PREPARE_TO_STORE ();
/* Print status information about what we're accessing. */
static void
-child_files_info (ignore)
- struct target_ops *ignore;
+child_files_info (struct target_ops *ignore)
{
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_ptid));
}
-/* ARGSUSED */
static void
-child_open (arg, from_tty)
- char *arg;
- int from_tty;
+child_open (char *arg, int from_tty)
{
error ("Use the \"run\" command to start a Unix child process.");
}
by its parent process. */
static void
-ptrace_me ()
+ptrace_me (void)
{
/* "Trace me, Dr. Memory!" */
- call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0);
+ call_ptrace (0, 0, (PTRACE_TYPE_ARG3) 0, 0);
}
/* Stub function which causes the GDB that runs it, to start ptrace-ing
the child process. */
-static void
-ptrace_him (pid)
- int pid;
+static void
+ptrace_him (int pid)
{
- push_target (&child_ops);
+ push_target (&deprecated_child_ops);
/* On some targets, there must be some explicit synchronization
between the parent and child processes after the debugger
forks, and before the child execs the debuggee program. This
call basically gives permission for the child to exec.
- */
+ */
target_acknowledge_created_inferior (pid);
/* On some targets, there must be some explicit actions taken after
the inferior has been started up.
- */
- target_post_startup_inferior (pid);
+ */
+ target_post_startup_inferior (pid_to_ptid (pid));
}
-/* Start an inferior Unix child process and sets inferior_pid to its pid.
+/* Start an inferior Unix child process and sets inferior_ptid to its pid.
EXEC_FILE is the file to run.
ALLARGS is a string containing the arguments to the program.
ENV is the environment vector to pass. Errors reported with error(). */
static void
-child_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+child_create_inferior (char *exec_file, char *allargs, char **env,
+ int from_tty)
{
-
#ifdef HPUXHPPA
- char *tryname;
- char *shell_file;
- char *p;
- char *p1;
- char *path = getenv ("PATH");
- int len;
- struct stat statbuf;
-
- /* On HP-UX, we have a possible bad interaction between
- * the start-up-with-shell code and our catch-fork/catch-exec
- * logic. To avoid the bad interaction, we start up with the
- * C shell ("csh") and pass it the "-f" flag (fast start-up,
- * don't run .cshrc code).
- * See further comments in inferior.h toward the bottom
- * (STARTUP_WITH_SHELL flag) and in fork-child.c
- */
-
- /* Rather than passing in a hard-wired path like "/bin/csh",
- * we look down the PATH to find csh. I took this code from
- * procfs.c, which is the file in the Sun-specific part of GDB
- * analogous to inftarg.c. See procfs.c for more detailed
- * comments. - RT
- */
- shell_file = "csh";
- if (path == NULL)
- path = "/bin:/usr/bin";
- tryname = alloca (strlen (path) + strlen (shell_file) + 2);
- for (p = path; p != NULL; p = p1 ? p1 + 1: NULL)
- {
- p1 = strchr (p, ':');
- if (p1 != NULL)
- len = p1 - p;
- else
- len = strlen (p);
- strncpy (tryname, p, len);
- tryname[len] = '\0';
- strcat (tryname, "/");
- strcat (tryname, shell_file);
- if (access (tryname, X_OK) < 0)
- continue;
- if (stat (tryname, &statbuf) < 0)
- continue;
- if (!S_ISREG (statbuf.st_mode))
- /* We certainly need to reject directories. I'm not quite
- as sure about FIFOs, sockets, etc., but I kind of doubt
- that people want to exec() these things. */
- continue;
- break;
- }
- if (p == NULL)
- /* Not found. I replaced the error() which existed in procfs.c
- * with simply passing in NULL and hoping fork_inferior()
- * can deal with it. - RT
- */
- /* error ("Can't find shell %s in PATH", shell_file); */
- shell_file = NULL;
- else
- shell_file = tryname;
-
- fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, shell_file);
+ fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, NULL);
#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
/* We are at the first instruction we care about. */
+ observer_notify_inferior_created (¤t_target, from_tty);
/* Pedal to the metal... */
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
}
#if !defined(CHILD_POST_STARTUP_INFERIOR)
void
-child_post_startup_inferior (pid)
- int pid;
+child_post_startup_inferior (ptid_t ptid)
{
/* This version of Unix doesn't require a meaningful "post startup inferior"
operation by a debugger.
- */
+ */
}
#endif
#if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR)
void
-child_acknowledge_created_inferior (pid)
- int pid;
+child_acknowledge_created_inferior (int pid)
{
/* This version of Unix doesn't require a meaningful "acknowledge created inferior"
operation by a debugger.
- */
-}
-#endif
-
-
-void
-child_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
-{
- clone_and_follow_inferior (child_pid, followed_child);
-
- /* Don't resume CHILD_PID; it's stopped where it ought to be, until
- the decision gets made elsewhere how to continue it.
- */
-}
-
-
-#if !defined(CHILD_POST_FOLLOW_INFERIOR_BY_CLONE)
-void
-child_post_follow_inferior_by_clone ()
-{
- /* This version of Unix doesn't require a meaningful "post follow inferior"
- operation by a clone debugger.
- */
+ */
}
#endif
#if !defined(CHILD_INSERT_FORK_CATCHPOINT)
int
-child_insert_fork_catchpoint (pid)
- int pid;
+child_insert_fork_catchpoint (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;
}
#endif
-
#if !defined(CHILD_REMOVE_FORK_CATCHPOINT)
int
-child_remove_fork_catchpoint (pid)
- int pid;
+child_remove_fork_catchpoint (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;
}
#endif
-
#if !defined(CHILD_INSERT_VFORK_CATCHPOINT)
int
-child_insert_vfork_catchpoint (pid)
- int pid;
+child_insert_vfork_catchpoint (int pid)
{
- /* This version of Unix doesn't support notification of vfork events.
- */
-}
-#endif
-
-
-#if !defined(CHILD_REMOVE_VFORK_CATCHPOINT)
-int
-child_remove_vfork_catchpoint (pid)
- int pid;
-{
- /* This version of Unix doesn't support notification of vfork events.
- */
-}
-#endif
-
-
-#if !defined(CHILD_HAS_FORKED)
-int
-child_has_forked (pid, child_pid)
- int pid;
- int * child_pid;
-{
- /* This version of Unix doesn't support notification of fork events.
- */
+ /* This version of Unix doesn't support notification of vfork events. */
return 0;
}
#endif
-
-#if !defined(CHILD_HAS_VFORKED)
+#if !defined(CHILD_REMOVE_VFORK_CATCHPOINT)
int
-child_has_vforked (pid, child_pid)
- int pid;
- int * child_pid;
+child_remove_vfork_catchpoint (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;
}
#endif
-
-#if !defined(CHILD_CAN_FOLLOW_VFORK_PRIOR_TO_EXEC)
+#if !defined(CHILD_FOLLOW_FORK)
int
-child_can_follow_vfork_prior_to_exec ()
+child_follow_fork (int follow_child)
{
- /* This version of Unix doesn't support notification of vfork events.
- However, if it did, it probably wouldn't allow vforks to be followed
- before the following exec.
- */
+ /* This version of Unix doesn't support following fork or vfork events. */
return 0;
}
#endif
-
-#if !defined(CHILD_POST_FOLLOW_VFORK)
-void
-child_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child)
- int parent_pid;
- int followed_parent;
- int child_pid;
- int followed_child;
-{
- /* This version of Unix doesn't require a meaningful "post follow vfork"
- operation by a clone debugger.
- */
-}
-#endif
-
#if !defined(CHILD_INSERT_EXEC_CATCHPOINT)
int
-child_insert_exec_catchpoint (pid)
- int pid;
+child_insert_exec_catchpoint (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;
}
#endif
-
#if !defined(CHILD_REMOVE_EXEC_CATCHPOINT)
int
-child_remove_exec_catchpoint (pid)
- int pid;
+child_remove_exec_catchpoint (int pid)
{
- /* This version of Unix doesn't support notification of exec events.
- */
-}
-#endif
-
-
-#if !defined(CHILD_HAS_EXECD)
-int
-child_has_execd (pid, execd_pathname)
- int pid;
- 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;
}
#endif
-
#if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL)
int
-child_reported_exec_events_per_exec_call ()
+child_reported_exec_events_per_exec_call (void)
{
/* This version of Unix doesn't support notification of exec events.
- */
+ */
return 1;
}
#endif
-
-#if !defined(CHILD_HAS_SYSCALL_EVENT)
-int
-child_has_syscall_event (pid, kind, syscall_id)
- int pid;
- enum target_waitkind * kind;
- int * syscall_id;
-{
- /* This version of Unix doesn't support notification of syscall events.
- */
- return 0;
-}
-#endif
-
-
#if !defined(CHILD_HAS_EXITED)
int
-child_has_exited (pid, wait_status, exit_status)
- int pid;
- int wait_status;
- int * exit_status;
+child_has_exited (int pid, int wait_status, int *exit_status)
{
if (WIFEXITED (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;
}
/* ?? Do we really need to consult the event state, too? Assume the
- wait_state alone suffices.
+ wait_state alone suffices.
*/
return 0;
}
static void
-child_mourn_inferior ()
+child_mourn_inferior (void)
{
- /* FIXME: Should be in a header file */
- extern void proc_remove_foreign PARAMS ((int));
-
- unpush_target (&child_ops);
- proc_remove_foreign (inferior_pid);
+ unpush_target (&deprecated_child_ops);
generic_mourn_inferior ();
}
static int
-child_can_run ()
+child_can_run (void)
{
/* 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
killpg() instead of kill (-pgrp). */
static void
-child_stop ()
+child_stop (void)
{
- extern pid_t inferior_process_group;
-
kill (-inferior_process_group, SIGINT);
}
#if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK)
struct symtab_and_line *
-child_enable_exception_callback (kind, enable)
- enum exception_event_kind kind;
- int enable;
+child_enable_exception_callback (enum exception_event_kind kind, int enable)
{
return (struct symtab_and_line *) NULL;
}
#if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT)
struct exception_event_record *
-child_get_current_exception_event ()
+child_get_current_exception_event (void)
{
return (struct exception_event_record *) NULL;
}
#if !defined(CHILD_PID_TO_EXEC_FILE)
char *
-child_pid_to_exec_file (pid)
- int pid;
+child_pid_to_exec_file (int pid)
{
/* This version of Unix doesn't support translation of a process ID
to the filename of the executable file.
- */
+ */
return NULL;
}
#endif
char *
-child_core_file_to_sym_file (core)
- char * core;
+child_core_file_to_sym_file (char *core)
{
/* The target stratum for a running executable need not support
this operation.
- */
+ */
return NULL;
}
+/* Perform a partial transfer to/from the specified object. For
+ memory transfers, fall back to the old memory xfer functions. */
+
+static LONGEST
+child_xfer_partial (struct target_ops *ops, enum target_object object,
+ const char *annex, void *readbuf,
+ const void *writebuf, ULONGEST offset, LONGEST len)
+{
+ switch (object)
+ {
+ case TARGET_OBJECT_MEMORY:
+ if (readbuf)
+ return child_xfer_memory (offset, readbuf, len, 0/*write*/,
+ NULL, ops);
+ if (writebuf)
+ return child_xfer_memory (offset, (void *) writebuf, len, 1/*write*/,
+ NULL, ops);
+ return -1;
+
+ case TARGET_OBJECT_UNWIND_TABLE:
+#ifndef NATIVE_XFER_UNWIND_TABLE
+#define NATIVE_XFER_UNWIND_TABLE(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
+#endif
+ return NATIVE_XFER_UNWIND_TABLE (ops, object, annex, readbuf, writebuf,
+ offset, len);
+
+ case TARGET_OBJECT_AUXV:
+#ifndef NATIVE_XFER_AUXV
+#define NATIVE_XFER_AUXV(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
+#endif
+ return NATIVE_XFER_AUXV (ops, object, annex, readbuf, writebuf,
+ offset, len);
+
+ case TARGET_OBJECT_WCOOKIE:
+#ifndef NATIVE_XFER_WCOOKIE
+#define NATIVE_XFER_WCOOKIE(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
+#endif
+ return NATIVE_XFER_WCOOKIE (ops, object, annex, readbuf, writebuf,
+ offset, len);
+
+ default:
+ return -1;
+ }
+}
+
+#if !defined(CHILD_PID_TO_STR)
+char *
+child_pid_to_str (ptid_t ptid)
+{
+ return normal_pid_to_str (ptid);
+}
+#endif
-\f
-struct target_ops child_ops = {
- "child", /* to_shortname */
- "Unix child process", /* to_longname */
- "Unix child process (started by the \"run\" command).", /* to_doc */
- child_open, /* to_open */
- 0, /* to_close */
- child_attach, /* to_attach */
- child_post_attach, /* to_post_attach */
- child_require_attach, /* to_require_attach */
- child_detach, /* to_detach */
- child_require_detach, /* to_require_detach */
- child_resume, /* to_resume */
- child_wait, /* to_wait */
- child_post_wait, /* to_post_wait */
- fetch_inferior_registers, /* to_fetch_registers */
- store_inferior_registers, /* to_store_registers */
- child_prepare_to_store, /* to_prepare_to_store */
- child_xfer_memory, /* to_xfer_memory */
- child_files_info, /* to_files_info */
- memory_insert_breakpoint, /* to_insert_breakpoint */
- memory_remove_breakpoint, /* to_remove_breakpoint */
- terminal_init_inferior, /* to_terminal_init */
- terminal_inferior, /* to_terminal_inferior */
- terminal_ours_for_output, /* to_terminal_ours_for_output */
- terminal_ours, /* to_terminal_ours */
- child_terminal_info, /* to_terminal_info */
- kill_inferior, /* to_kill */
- 0, /* to_load */
- 0, /* to_lookup_symbol */
- child_create_inferior, /* to_create_inferior */
- child_post_startup_inferior, /* to_post_startup_inferior */
- child_acknowledge_created_inferior, /* to_acknowledge_created_inferior */
- child_clone_and_follow_inferior, /* to_clone_and_follow_inferior */
- child_post_follow_inferior_by_clone, /* to_post_follow_inferior_by_clone */
- child_insert_fork_catchpoint, /* to_insert_fork_catchpoint */
- child_remove_fork_catchpoint, /* to_remove_fork_catchpoint */
- child_insert_vfork_catchpoint, /* to_insert_vfork_catchpoint */
- child_remove_vfork_catchpoint, /* to_remove_vfork_catchpoint */
- child_has_forked, /* to_has_forked */
- child_has_vforked, /* to_has_vforked */
- child_can_follow_vfork_prior_to_exec, /* to_can_follow_vfork_prior_to_exec */
- child_post_follow_vfork, /* to_post_follow_vfork */
- child_insert_exec_catchpoint, /* to_insert_exec_catchpoint */
- child_remove_exec_catchpoint, /* to_remove_exec_catchpoint */
- child_has_execd, /* to_has_execd */
- child_reported_exec_events_per_exec_call, /* to_reported_exec_events_per_exec_call */
- child_has_syscall_event, /* to_has_syscall_event */
- child_has_exited, /* to_has_exited */
- child_mourn_inferior, /* to_mourn_inferior */
- child_can_run, /* to_can_run */
- 0, /* to_notice_signals */
- child_thread_alive, /* to_thread_alive */
- child_stop, /* to_stop */
- child_enable_exception_callback, /* to_enable_exception_callback */
- child_get_current_exception_event, /* to_get_current_exception_event */
- child_pid_to_exec_file, /* to_pid_to_exec_file */
- child_core_file_to_sym_file, /* to_core_file_to_sym_file */
- process_stratum, /* to_stratum */
- 0, /* to_next */
- 1, /* to_has_all_memory */
- 1, /* to_has_memory */
- 1, /* to_has_stack */
- 1, /* to_has_registers */
- 1, /* to_has_execution */
- 0, /* to_sections */
- 0, /* to_sections_end */
- OPS_MAGIC /* to_magic */
-};
+static void
+init_child_ops (void)
+{
+ deprecated_child_ops.to_shortname = "child";
+ deprecated_child_ops.to_longname = "Unix child process";
+ deprecated_child_ops.to_doc = "Unix child process (started by the \"run\" command).";
+ deprecated_child_ops.to_open = child_open;
+ deprecated_child_ops.to_attach = child_attach;
+ deprecated_child_ops.to_post_attach = child_post_attach;
+ deprecated_child_ops.to_detach = child_detach;
+ deprecated_child_ops.to_resume = child_resume;
+ deprecated_child_ops.to_wait = child_wait;
+ deprecated_child_ops.to_fetch_registers = fetch_inferior_registers;
+ deprecated_child_ops.to_store_registers = store_inferior_registers;
+ deprecated_child_ops.to_prepare_to_store = child_prepare_to_store;
+ deprecated_child_ops.deprecated_xfer_memory = child_xfer_memory;
+ deprecated_child_ops.to_xfer_partial = child_xfer_partial;
+ deprecated_child_ops.to_files_info = child_files_info;
+ deprecated_child_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ deprecated_child_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ deprecated_child_ops.to_terminal_init = terminal_init_inferior;
+ deprecated_child_ops.to_terminal_inferior = terminal_inferior;
+ deprecated_child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ deprecated_child_ops.to_terminal_save_ours = terminal_save_ours;
+ deprecated_child_ops.to_terminal_ours = terminal_ours;
+ deprecated_child_ops.to_terminal_info = child_terminal_info;
+ deprecated_child_ops.to_kill = kill_inferior;
+ deprecated_child_ops.to_create_inferior = child_create_inferior;
+ deprecated_child_ops.to_post_startup_inferior = child_post_startup_inferior;
+ deprecated_child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior;
+ deprecated_child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint;
+ deprecated_child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint;
+ deprecated_child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint;
+ deprecated_child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint;
+ deprecated_child_ops.to_follow_fork = child_follow_fork;
+ deprecated_child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint;
+ deprecated_child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint;
+ deprecated_child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call;
+ deprecated_child_ops.to_has_exited = child_has_exited;
+ deprecated_child_ops.to_mourn_inferior = child_mourn_inferior;
+ deprecated_child_ops.to_can_run = child_can_run;
+ deprecated_child_ops.to_thread_alive = child_thread_alive;
+ deprecated_child_ops.to_pid_to_str = child_pid_to_str;
+ deprecated_child_ops.to_stop = child_stop;
+ deprecated_child_ops.to_enable_exception_callback = child_enable_exception_callback;
+ deprecated_child_ops.to_get_current_exception_event = child_get_current_exception_event;
+ deprecated_child_ops.to_pid_to_exec_file = child_pid_to_exec_file;
+ deprecated_child_ops.to_stratum = process_stratum;
+ deprecated_child_ops.to_has_all_memory = 1;
+ deprecated_child_ops.to_has_memory = 1;
+ deprecated_child_ops.to_has_stack = 1;
+ deprecated_child_ops.to_has_registers = 1;
+ deprecated_child_ops.to_has_execution = 1;
+ deprecated_child_ops.to_magic = OPS_MAGIC;
+}
void
-_initialize_inftarg ()
+_initialize_inftarg (void)
{
#ifdef HAVE_OPTIONAL_PROC_FS
char procname[32];
#define PROC_NAME_FMT "/proc/%05d"
#endif
sprintf (procname, PROC_NAME_FMT, getpid ());
- if ((fd = open (procname, O_RDONLY)) >= 0)
+ fd = open (procname, O_RDONLY);
+ if (fd >= 0)
{
close (fd);
return;
}
#endif
- add_target (&child_ops);
+ init_child_ops ();
+ add_target (&deprecated_child_ops);
}
projects / deliverable / binutils-gdb.git / blobdiff