834 lines
26 KiB
Diff
834 lines
26 KiB
Diff
|
diff -u -rup gdb-6.6-orig/gdb/inf-ptrace.c gdb-6.6/gdb/inf-ptrace.c
|
|||
|
--- gdb-6.6-orig/gdb/inf-ptrace.c 2006-01-24 23:34:34.000000000 +0100
|
|||
|
+++ gdb-6.6/gdb/inf-ptrace.c 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -38,6 +38,9 @@
|
|||
|
|
|||
|
/* HACK: Save the ptrace ops returned by inf_ptrace_target. */
|
|||
|
static struct target_ops *ptrace_ops_hack;
|
|||
|
+
|
|||
|
+/* Stored PID of the process being stopped during attach. */
|
|||
|
+static pid_t stopped_pid;
|
|||
|
|
|||
|
|
|||
|
#ifdef PT_GET_PROCESS_STATE
|
|||
|
@@ -69,14 +72,20 @@ inf_ptrace_follow_fork (struct target_op
|
|||
|
|
|||
|
if (follow_child)
|
|||
|
{
|
|||
|
+ unsigned long sig = 0;
|
|||
|
+
|
|||
|
inferior_ptid = pid_to_ptid (fpid);
|
|||
|
detach_breakpoints (pid);
|
|||
|
|
|||
|
/* Reset breakpoints in the child as appropriate. */
|
|||
|
follow_inferior_reset_breakpoints ();
|
|||
|
|
|||
|
- if (ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, 0) == -1)
|
|||
|
- perror_with_name (("ptrace"));
|
|||
|
+ /* Stop the process again if it was stopped during the attachment. */
|
|||
|
+ if (pid == stopped_pid)
|
|||
|
+ sig = target_signal_to_host (TARGET_SIGNAL_STOP));
|
|||
|
+
|
|||
|
+ if (ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, (void *) sig) == -1)
|
|||
|
+ perror_with_name (("ptrace PT_DETACH"));
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
@@ -173,6 +182,21 @@ inf_ptrace_mourn_inferior (void)
|
|||
|
generic_mourn_inferior ();
|
|||
|
}
|
|||
|
|
|||
|
+/* Wrapper function for waitpid which handles EINTR. */
|
|||
|
+
|
|||
|
+static int
|
|||
|
+my_waitpid (int pid, int *status, int flags)
|
|||
|
+{
|
|||
|
+ int ret;
|
|||
|
+ do
|
|||
|
+ {
|
|||
|
+ ret = waitpid (pid, status, flags);
|
|||
|
+ }
|
|||
|
+ while (ret == -1 && errno == EINTR);
|
|||
|
+
|
|||
|
+ return ret;
|
|||
|
+}
|
|||
|
+
|
|||
|
/* Attach to the process specified by ARGS. If FROM_TTY is non-zero,
|
|||
|
be chatty about it. */
|
|||
|
|
|||
|
@@ -180,8 +204,14 @@ static void
|
|||
|
inf_ptrace_attach (char *args, int from_tty)
|
|||
|
{
|
|||
|
char *exec_file;
|
|||
|
- pid_t pid;
|
|||
|
+ pid_t pid, got_pid;
|
|||
|
char *dummy;
|
|||
|
+ int status;
|
|||
|
+ unsigned long sig;
|
|||
|
+ FILE *status_file;
|
|||
|
+ char name[40];
|
|||
|
+ char buf[100];
|
|||
|
+ int sigstop = target_signal_to_host (TARGET_SIGNAL_STOP);
|
|||
|
|
|||
|
if (!args)
|
|||
|
error_no_arg (_("process-id to attach"));
|
|||
|
@@ -210,11 +240,64 @@ inf_ptrace_attach (char *args, int from_
|
|||
|
}
|
|||
|
|
|||
|
#ifdef PT_ATTACH
|
|||
|
+ stopped_pid = 0;
|
|||
|
+ /* There is a small moment after PTRACE_ATTACH where PTRACE_CONT will
|
|||
|
+ succeed only for originally stopped processes. Unfortunately in a moment
|
|||
|
+ PTRACE_ATTACH will deliver its SIGSTOP and PTRACE_CONT shows no difference
|
|||
|
+ since that moment.
|
|||
|
+ "/proc/%d/status" is also a race but it is safe for unstopped cases. */
|
|||
|
+ sprintf (name, "/proc/%d/status", (int) pid);
|
|||
|
+ status_file = fopen (name, "r");
|
|||
|
+ if (status_file != NULL)
|
|||
|
+ {
|
|||
|
+ int have_state = 0;
|
|||
|
+
|
|||
|
+ while (fgets (buf, 100, status_file))
|
|||
|
+ {
|
|||
|
+ if (strncmp (buf, "State:", 6) == 0)
|
|||
|
+ {
|
|||
|
+ have_state = 1;
|
|||
|
+ break;
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+ if (have_state != 0 && strstr (buf, "T (stopped)") != NULL)
|
|||
|
+ stopped_pid = pid;
|
|||
|
+ fclose (status_file);
|
|||
|
+ }
|
|||
|
+
|
|||
|
errno = 0;
|
|||
|
ptrace (PT_ATTACH, pid, (PTRACE_TYPE_ARG3)0, 0);
|
|||
|
if (errno != 0)
|
|||
|
perror_with_name (("ptrace"));
|
|||
|
attach_flag = 1;
|
|||
|
+
|
|||
|
+ /* Deliver one SIGSTOP just for sure.
|
|||
|
+ If the process was already stopped AND some other process (like shell)
|
|||
|
+ has already waited for it we would get stuck in waitpid (). */
|
|||
|
+ sig = sigstop;
|
|||
|
+ do
|
|||
|
+ {
|
|||
|
+ if (sig != sigstop)
|
|||
|
+ printf_unfiltered (_("Redelivering pending %s.\n"),
|
|||
|
+ target_signal_to_string (target_signal_from_host (sig)));
|
|||
|
+ errno = 0;
|
|||
|
+ ptrace (PT_CONTINUE, pid, (PTRACE_TYPE_ARG3)1, (void *) sig);
|
|||
|
+ /* For unstopped processes the preventive signal may ESRCH. */
|
|||
|
+ if (errno != 0 && sig != sigstop)
|
|||
|
+ perror_with_name ("ptrace PT_CONTINUE");
|
|||
|
+
|
|||
|
+ got_pid = my_waitpid (pid, &status, 0);
|
|||
|
+ gdb_assert (got_pid == pid);
|
|||
|
+
|
|||
|
+ /* Check if the thread has exited. */
|
|||
|
+ if (WIFEXITED (status) || WIFSIGNALED (status))
|
|||
|
+ error (_("Program %s exited.\n"),
|
|||
|
+ target_pid_to_str (pid_to_ptid (pid)));
|
|||
|
+ gdb_assert (WIFSTOPPED (status));
|
|||
|
+ sig = WSTOPSIG (status);
|
|||
|
+ gdb_assert (sig != 0);
|
|||
|
+ }
|
|||
|
+ while (sig != sigstop);
|
|||
|
#else
|
|||
|
error (_("This system does not support attaching to a process"));
|
|||
|
#endif
|
|||
|
@@ -240,14 +323,16 @@ inf_ptrace_post_attach (int pid)
|
|||
|
|
|||
|
#endif
|
|||
|
|
|||
|
-/* Detach from the inferior, optionally passing it the signal
|
|||
|
- specified by ARGS. If FROM_TTY is non-zero, be chatty about it. */
|
|||
|
+/* Detach from the inferior. If FROM_TTY is non-zero, be chatty about it. */
|
|||
|
|
|||
|
static void
|
|||
|
inf_ptrace_detach (char *args, int from_tty)
|
|||
|
{
|
|||
|
pid_t pid = ptid_get_pid (inferior_ptid);
|
|||
|
- int sig = 0;
|
|||
|
+ unsigned long sig = 0;
|
|||
|
+
|
|||
|
+ if (args)
|
|||
|
+ error (_("Too many arguments"));
|
|||
|
|
|||
|
if (from_tty)
|
|||
|
{
|
|||
|
@@ -258,18 +343,19 @@ inf_ptrace_detach (char *args, int from_
|
|||
|
target_pid_to_str (pid_to_ptid (pid)));
|
|||
|
gdb_flush (gdb_stdout);
|
|||
|
}
|
|||
|
- if (args)
|
|||
|
- sig = atoi (args);
|
|||
|
|
|||
|
#ifdef PT_DETACH
|
|||
|
/* We'd better not have left any breakpoints in the program or it'll
|
|||
|
die when it hits one. Also note that this may only work if we
|
|||
|
previously attached to the inferior. It *might* work if we
|
|||
|
started the process ourselves. */
|
|||
|
+ /* Stop the process again if it was stopped during the attachment. */
|
|||
|
+ if (pid == stopped_pid)
|
|||
|
+ sig = target_signal_to_host (TARGET_SIGNAL_STOP);
|
|||
|
errno = 0;
|
|||
|
- ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, sig);
|
|||
|
+ ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, (void *) sig);
|
|||
|
if (errno != 0)
|
|||
|
- perror_with_name (("ptrace"));
|
|||
|
+ perror_with_name (("ptrace PT_DETACH"));
|
|||
|
attach_flag = 0;
|
|||
|
#else
|
|||
|
error (_("This system does not support detaching from a process"));
|
|||
|
@@ -324,6 +410,12 @@ inf_ptrace_resume (ptid_t ptid, int step
|
|||
|
single-threaded processes, so simply resume the inferior. */
|
|||
|
pid = ptid_get_pid (inferior_ptid);
|
|||
|
|
|||
|
+ /* At this point, we are going to resume the inferior and if we
|
|||
|
+ have attached to a stopped process, we no longer should leave
|
|||
|
+ it as stopped if the user detaches. */
|
|||
|
+ if (!step && pid == stopped_pid)
|
|||
|
+ stopped_pid = 0;
|
|||
|
+
|
|||
|
if (step)
|
|||
|
{
|
|||
|
/* If this system does not support PT_STEP, a higher level
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/linux-nat.c gdb-6.6/gdb/linux-nat.c
|
|||
|
--- gdb-6.6-orig/gdb/linux-nat.c 2007-06-06 13:30:52.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/linux-nat.c 2007-06-06 13:57:18.000000000 +0200
|
|||
|
@@ -994,6 +994,7 @@ lin_lwp_attach_lwp (ptid_t ptid, int ver
|
|||
|
{
|
|||
|
pid_t pid;
|
|||
|
int status;
|
|||
|
+ unsigned long sig;
|
|||
|
|
|||
|
if (ptrace (PTRACE_ATTACH, GET_LWP (ptid), 0, 0) < 0)
|
|||
|
{
|
|||
|
@@ -1015,32 +1016,54 @@ lin_lwp_attach_lwp (ptid_t ptid, int ver
|
|||
|
"LLAL: PTRACE_ATTACH %s, 0, 0 (OK)\n",
|
|||
|
target_pid_to_str (ptid));
|
|||
|
|
|||
|
- pid = my_waitpid (GET_LWP (ptid), &status, 0);
|
|||
|
- if (pid == -1 && errno == ECHILD)
|
|||
|
+ sig = SIGSTOP;
|
|||
|
+ do
|
|||
|
{
|
|||
|
- /* Try again with __WCLONE to check cloned processes. */
|
|||
|
- pid = my_waitpid (GET_LWP (ptid), &status, __WCLONE);
|
|||
|
+ if (sig != SIGSTOP)
|
|||
|
+ printf_unfiltered (_("Redelivering pending %s.\n"),
|
|||
|
+ target_signal_to_string (target_signal_from_host (sig)));
|
|||
|
+ /* For unstopped processes the preventive signal may ESRCH. */
|
|||
|
+ if (ptrace (PTRACE_CONT, GET_LWP (ptid), (PTRACE_TYPE_ARG3)1,
|
|||
|
+ (void *) sig) != 0 && sig != SIGSTOP)
|
|||
|
+ perror_with_name ("ptrace");
|
|||
|
+
|
|||
|
+ pid = my_waitpid (GET_LWP (ptid), &status, 0);
|
|||
|
if (pid == -1 && errno == ECHILD)
|
|||
|
- error (_("Can't attach %s (%s) - possible SELinux denial,"
|
|||
|
- " check your /var/log/messages for `avc: denied'"),
|
|||
|
- target_pid_to_str (ptid), safe_strerror (errno));
|
|||
|
- lp->cloned = 1;
|
|||
|
- }
|
|||
|
+ {
|
|||
|
+ /* Try again with __WCLONE to check cloned processes. */
|
|||
|
+ pid = my_waitpid (GET_LWP (ptid), &status, __WCLONE);
|
|||
|
+ if (pid == -1 && errno == ECHILD)
|
|||
|
+ error (_("Can't attach %s (%s) - possible SELinux denial,"
|
|||
|
+ " check your /var/log/messages for `avc: denied'"),
|
|||
|
+ target_pid_to_str (ptid), safe_strerror (errno));
|
|||
|
+ lp->cloned = 1;
|
|||
|
+ }
|
|||
|
+ gdb_assert (pid == GET_LWP (ptid));
|
|||
|
|
|||
|
- gdb_assert (pid == GET_LWP (ptid)
|
|||
|
- && WIFSTOPPED (status) && WSTOPSIG (status));
|
|||
|
+ if (debug_linux_nat)
|
|||
|
+ {
|
|||
|
+ fprintf_unfiltered (gdb_stdlog,
|
|||
|
+ "LLAL: waitpid %s received %s\n",
|
|||
|
+ target_pid_to_str (ptid),
|
|||
|
+ status_to_str (status));
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ /* Check if the thread has exited. */
|
|||
|
+ if (WIFEXITED (status) || WIFSIGNALED (status))
|
|||
|
+ {
|
|||
|
+ warning (_("Thread %s exited: %s"), target_pid_to_str (ptid),
|
|||
|
+ status_to_str (status));
|
|||
|
+ return -1;
|
|||
|
+ }
|
|||
|
+ gdb_assert (WIFSTOPPED (status));
|
|||
|
+ sig = WSTOPSIG (status);
|
|||
|
+ gdb_assert (sig != 0);
|
|||
|
+ }
|
|||
|
+ while (sig != SIGSTOP);
|
|||
|
|
|||
|
target_post_attach (pid);
|
|||
|
|
|||
|
lp->stopped = 1;
|
|||
|
-
|
|||
|
- if (debug_linux_nat)
|
|||
|
- {
|
|||
|
- fprintf_unfiltered (gdb_stdlog,
|
|||
|
- "LLAL: waitpid %s received %s\n",
|
|||
|
- target_pid_to_str (ptid),
|
|||
|
- status_to_str (status));
|
|||
|
- }
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
@@ -1065,8 +1088,6 @@ static void
|
|||
|
linux_nat_attach (char *args, int from_tty)
|
|||
|
{
|
|||
|
struct lwp_info *lp;
|
|||
|
- pid_t pid;
|
|||
|
- int status;
|
|||
|
|
|||
|
/* FIXME: We should probably accept a list of process id's, and
|
|||
|
attach all of them. */
|
|||
|
@@ -1076,22 +1097,6 @@ linux_nat_attach (char *args, int from_t
|
|||
|
inferior_ptid = BUILD_LWP (GET_PID (inferior_ptid), GET_PID (inferior_ptid));
|
|||
|
lp = add_lwp (inferior_ptid);
|
|||
|
|
|||
|
- /* Make sure the initial process is stopped. The user-level threads
|
|||
|
- layer might want to poke around in the inferior, and that won't
|
|||
|
- work if things haven't stabilized yet. */
|
|||
|
- pid = my_waitpid (GET_PID (inferior_ptid), &status, 0);
|
|||
|
- if (pid == -1 && errno == ECHILD)
|
|||
|
- {
|
|||
|
- warning (_("%s is a cloned process"), target_pid_to_str (inferior_ptid));
|
|||
|
-
|
|||
|
- /* Try again with __WCLONE to check cloned processes. */
|
|||
|
- pid = my_waitpid (GET_PID (inferior_ptid), &status, __WCLONE);
|
|||
|
- lp->cloned = 1;
|
|||
|
- }
|
|||
|
-
|
|||
|
- gdb_assert (pid == GET_PID (inferior_ptid)
|
|||
|
- && WIFSTOPPED (status) && WSTOPSIG (status) == SIGSTOP);
|
|||
|
-
|
|||
|
lp->stopped = 1;
|
|||
|
|
|||
|
/* Fake the SIGSTOP that core GDB expects. */
|
|||
|
@@ -1099,8 +1104,8 @@ linux_nat_attach (char *args, int from_t
|
|||
|
lp->resumed = 1;
|
|||
|
if (debug_linux_nat)
|
|||
|
{
|
|||
|
- fprintf_unfiltered (gdb_stdlog,
|
|||
|
- "LLA: waitpid %ld, faking SIGSTOP\n", (long) pid);
|
|||
|
+ fprintf_unfiltered (gdb_stdlog, "LLA: waitpid %d, faking SIGSTOP\n",
|
|||
|
+ GET_PID (inferior_ptid));
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/target.h gdb-6.6/gdb/target.h
|
|||
|
--- gdb-6.6-orig/gdb/target.h 2007-06-06 13:30:52.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/target.h 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -529,9 +529,9 @@ void target_close (struct target_ops *ta
|
|||
|
to the `attach' command by the user. This routine can be called
|
|||
|
when the target is not on the target-stack, if the target_can_run
|
|||
|
routine returns 1; in that case, it must push itself onto the stack.
|
|||
|
- Upon exit, the target should be ready for normal operations, and
|
|||
|
- should be ready to deliver the status of the process immediately
|
|||
|
- (without waiting) to an upcoming target_wait call. */
|
|||
|
+ Upon exit, the target should be ready for normal operations.
|
|||
|
+ The status of the inferior is already processed and possibly pending
|
|||
|
+ signals redelivered. */
|
|||
|
|
|||
|
#define target_attach(args, from_tty) \
|
|||
|
(*current_target.to_attach) (args, from_tty)
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-into-signal.c gdb-6.6/gdb/testsuite/gdb.threads/attach-into-signal.c
|
|||
|
--- gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-into-signal.c 2007-06-06 16:36:34.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/testsuite/gdb.threads/attach-into-signal.c 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -0,0 +1,65 @@
|
|||
|
+/* This testcase is part of GDB, the GNU debugger.
|
|||
|
+
|
|||
|
+ Copyright 2007 Free Software Foundation, Inc.
|
|||
|
+
|
|||
|
+ 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.
|
|||
|
+
|
|||
|
+ 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 <signal.h>
|
|||
|
+#include <unistd.h>
|
|||
|
+#include <string.h>
|
|||
|
+#include <stdio.h>
|
|||
|
+#include <stdlib.h>
|
|||
|
+#ifdef USE_THREADS
|
|||
|
+#include <pthread.h>
|
|||
|
+#endif
|
|||
|
+
|
|||
|
+void action(int sig, siginfo_t * info, void *uc)
|
|||
|
+{
|
|||
|
+ raise (SIGALRM);
|
|||
|
+}
|
|||
|
+
|
|||
|
+static void *func (void *arg)
|
|||
|
+{
|
|||
|
+ struct sigaction act;
|
|||
|
+
|
|||
|
+ memset (&act, 0, sizeof(struct sigaction));
|
|||
|
+ act.sa_sigaction = action;
|
|||
|
+ act.sa_flags = SA_RESTART;
|
|||
|
+ sigaction (SIGALRM, &act, 0);
|
|||
|
+
|
|||
|
+ raise (SIGALRM);
|
|||
|
+
|
|||
|
+ abort ();
|
|||
|
+ /* NOTREACHED */
|
|||
|
+ return NULL;
|
|||
|
+}
|
|||
|
+
|
|||
|
+int main ()
|
|||
|
+{
|
|||
|
+
|
|||
|
+#ifndef USE_THREADS
|
|||
|
+
|
|||
|
+ func (NULL);
|
|||
|
+
|
|||
|
+#else
|
|||
|
+
|
|||
|
+ pthread_t th;
|
|||
|
+ pthread_create (&th, NULL, func, NULL);
|
|||
|
+ pthread_join (th, NULL);
|
|||
|
+
|
|||
|
+#endif
|
|||
|
+
|
|||
|
+ return 0;
|
|||
|
+}
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-into-signal.exp gdb-6.6/gdb/testsuite/gdb.threads/attach-into-signal.exp
|
|||
|
--- gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-into-signal.exp 2007-06-06 16:36:34.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/testsuite/gdb.threads/attach-into-signal.exp 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -0,0 +1,153 @@
|
|||
|
+# Copyright 2007
|
|||
|
+
|
|||
|
+# 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.
|
|||
|
+#
|
|||
|
+# 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.
|
|||
|
+
|
|||
|
+# This test was created by modifying attach-stopped.exp.
|
|||
|
+# This file was created by Jan Kratochvil <jan.kratochvil@redhat.com>.
|
|||
|
+
|
|||
|
+if $tracelevel then {
|
|||
|
+ strace $tracelevel
|
|||
|
+}
|
|||
|
+
|
|||
|
+set prms_id 0
|
|||
|
+set bug_id 0
|
|||
|
+
|
|||
|
+set testfile "attach-into-signal"
|
|||
|
+set srcfile ${testfile}.c
|
|||
|
+set binfile ${objdir}/${subdir}/${testfile}
|
|||
|
+set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}]
|
|||
|
+
|
|||
|
+remote_exec build "rm -f ${binfile}"
|
|||
|
+# For debugging this test
|
|||
|
+#
|
|||
|
+#log_user 1
|
|||
|
+
|
|||
|
+proc corefunc { threadtype } {
|
|||
|
+ global srcfile
|
|||
|
+ global binfile
|
|||
|
+ global escapedbinfile
|
|||
|
+ global srcdir
|
|||
|
+ global subdir
|
|||
|
+ global gdb_prompt
|
|||
|
+
|
|||
|
+ if [get_compiler_info ${binfile}] {
|
|||
|
+ return -1
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Start the program running and then wait for a bit, to be sure
|
|||
|
+ # that it can be attached to.
|
|||
|
+ # Statistically there is a better chance without giving process a nice.
|
|||
|
+
|
|||
|
+ set testpid [eval exec $binfile &]
|
|||
|
+ exec sleep 2
|
|||
|
+
|
|||
|
+ # Run 2 passes of the test.
|
|||
|
+ # The C file inferior stops pending its signals if a single one is lost,
|
|||
|
+ # we test successful redelivery of the caught signal by the 2nd pass.
|
|||
|
+
|
|||
|
+ # linux-2.6.20.4.x86_64 had maximal attempt # 20 in 4 test runs.
|
|||
|
+ set attempts 100
|
|||
|
+ set attempt 0
|
|||
|
+ set passes 1
|
|||
|
+ while { $passes < 3 && $attempt < $attempts } {
|
|||
|
+
|
|||
|
+ # Start with clean gdb
|
|||
|
+ gdb_exit
|
|||
|
+ gdb_start
|
|||
|
+ gdb_reinitialize_dir $srcdir/$subdir
|
|||
|
+ gdb_load ${binfile}
|
|||
|
+
|
|||
|
+ # No PASS message as we may be looping in multiple attempts.
|
|||
|
+ gdb_test "set debug lin-lwp 1" "" ""
|
|||
|
+
|
|||
|
+ set test "$threadtype: set file (pass $passes), before attach1 to stopped process"
|
|||
|
+ if {[gdb_test_multiple "file $binfile" $test {
|
|||
|
+ -re "Load new symbol table from.*y or n. $" {
|
|||
|
+ # No PASS message as we may be looping in multiple attempts.
|
|||
|
+ gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." ""
|
|||
|
+ }
|
|||
|
+ -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {
|
|||
|
+ # No PASS message as we may be looping in multiple attempts.
|
|||
|
+ }
|
|||
|
+ }] != 0 } {
|
|||
|
+ break
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Main test:
|
|||
|
+ set test "$threadtype: attach (pass $passes), pending signal catch"
|
|||
|
+ if {[gdb_test_multiple "attach $testpid" $test {
|
|||
|
+ -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Redelivering pending Alarm clock..*$gdb_prompt $" {
|
|||
|
+ # nonthreaded:
|
|||
|
+ pass $test
|
|||
|
+ verbose -log "$test succeeded on the attempt # $attempt of $attempts"
|
|||
|
+ set passes [expr $passes + 1]
|
|||
|
+ }
|
|||
|
+ -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
|
|||
|
+ # nonthreaded:
|
|||
|
+ # We just lack the luck, we should try it again.
|
|||
|
+ set attempt [expr $attempt + 1]
|
|||
|
+ }
|
|||
|
+ -re "Attaching to process $testpid.*Redelivering pending Alarm clock..*$gdb_prompt $" {
|
|||
|
+ # threaded:
|
|||
|
+ pass $test
|
|||
|
+ verbose -log "$test succeeded on the attempt # $attempt of $attempts"
|
|||
|
+ set passes [expr $passes + 1]
|
|||
|
+ }
|
|||
|
+ -re "Attaching to process $testpid.*$gdb_prompt $" {
|
|||
|
+ # threaded:
|
|||
|
+ # We just lack the luck, we should try it again.
|
|||
|
+ set attempt [expr $attempt - 1]
|
|||
|
+ }
|
|||
|
+ }] != 0 } {
|
|||
|
+ break
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+ if {$passes < 3} {
|
|||
|
+ fail $test
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Exit and detach the process.
|
|||
|
+
|
|||
|
+ gdb_exit
|
|||
|
+
|
|||
|
+ # Make sure we don't leave a process around to confuse
|
|||
|
+ # the next test run (and prevent the compile by keeping
|
|||
|
+ # the text file busy), in case the "set should_exit" didn't
|
|||
|
+ # work.
|
|||
|
+
|
|||
|
+ # Continue the program - some Linux kernels need it before -9 if the
|
|||
|
+ # process is stopped.
|
|||
|
+ remote_exec build "kill -s CONT ${testpid}"
|
|||
|
+
|
|||
|
+ remote_exec build "kill -9 ${testpid}"
|
|||
|
+}
|
|||
|
+
|
|||
|
+# build the test case first without threads
|
|||
|
+#
|
|||
|
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
|||
|
+ gdb_suppress_entire_file "Testcase nonthraded compile failed, so all tests in this file will automatically fail."
|
|||
|
+}
|
|||
|
+
|
|||
|
+corefunc nonthreaded
|
|||
|
+
|
|||
|
+# build the test case first without threads
|
|||
|
+#
|
|||
|
+if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
|
|||
|
+ gdb_suppress_entire_file "Testcase threaded compile failed, so all tests in this file will automatically fail."
|
|||
|
+}
|
|||
|
+
|
|||
|
+corefunc threaded
|
|||
|
+
|
|||
|
+return 0
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-stopped.c gdb-6.6/gdb/testsuite/gdb.threads/attach-stopped.c
|
|||
|
--- gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-stopped.c 2007-06-06 16:36:34.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/testsuite/gdb.threads/attach-stopped.c 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -0,0 +1,51 @@
|
|||
|
+/* This testcase is part of GDB, the GNU debugger.
|
|||
|
+
|
|||
|
+ Copyright 2005-2007 Free Software Foundation, Inc.
|
|||
|
+
|
|||
|
+ 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.
|
|||
|
+
|
|||
|
+ 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. */
|
|||
|
+
|
|||
|
+/* This program is intended to be started outside of gdb, then
|
|||
|
+ manually stopped via a signal. */
|
|||
|
+
|
|||
|
+#include <stddef.h>
|
|||
|
+#include <unistd.h>
|
|||
|
+#ifdef USE_THREADS
|
|||
|
+#include <pthread.h>
|
|||
|
+#endif
|
|||
|
+
|
|||
|
+static void *func (void *arg)
|
|||
|
+{
|
|||
|
+ sleep (10000); /* Ridiculous time, but we will eventually kill it. */
|
|||
|
+ sleep (10000); /* Second sleep. */
|
|||
|
+ return NULL;
|
|||
|
+}
|
|||
|
+
|
|||
|
+int main ()
|
|||
|
+{
|
|||
|
+
|
|||
|
+#ifndef USE_THREADS
|
|||
|
+
|
|||
|
+ func (NULL);
|
|||
|
+
|
|||
|
+#else
|
|||
|
+
|
|||
|
+ pthread_t th;
|
|||
|
+ pthread_create (&th, NULL, func, NULL);
|
|||
|
+ pthread_join (th, NULL);
|
|||
|
+
|
|||
|
+#endif
|
|||
|
+
|
|||
|
+ return 0;
|
|||
|
+}
|
|||
|
diff -u -rup gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-stopped.exp gdb-6.6/gdb/testsuite/gdb.threads/attach-stopped.exp
|
|||
|
--- gdb-6.6-orig/gdb/testsuite/gdb.threads/attach-stopped.exp 2007-06-06 16:36:34.000000000 +0200
|
|||
|
+++ gdb-6.6/gdb/testsuite/gdb.threads/attach-stopped.exp 2007-06-06 13:33:11.000000000 +0200
|
|||
|
@@ -0,0 +1,208 @@
|
|||
|
+# Copyright 2005-2007
|
|||
|
+
|
|||
|
+# 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.
|
|||
|
+#
|
|||
|
+# 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.
|
|||
|
+
|
|||
|
+# This test was created by modifying attach.exp.
|
|||
|
+# This file was created by Jeff Johnston <jjohnstn@redhat.com>.
|
|||
|
+# This file was updated by Jan Kratochvil <jan.kratochvil@redhat.com>.
|
|||
|
+
|
|||
|
+if $tracelevel then {
|
|||
|
+ strace $tracelevel
|
|||
|
+}
|
|||
|
+
|
|||
|
+set prms_id 0
|
|||
|
+set bug_id 0
|
|||
|
+
|
|||
|
+# This test only works on Linux
|
|||
|
+if { ![istarget "*-*-linux-gnu*"] } {
|
|||
|
+ return 0
|
|||
|
+}
|
|||
|
+
|
|||
|
+set testfile "attach-stopped"
|
|||
|
+set srcfile ${testfile}.c
|
|||
|
+set binfile ${objdir}/${subdir}/${testfile}
|
|||
|
+set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}]
|
|||
|
+
|
|||
|
+#execute_anywhere "rm -f ${binfile}"
|
|||
|
+remote_exec build "rm -f ${binfile}"
|
|||
|
+# For debugging this test
|
|||
|
+#
|
|||
|
+#log_user 1
|
|||
|
+
|
|||
|
+proc corefunc { threadtype } {
|
|||
|
+ global srcfile
|
|||
|
+ global binfile
|
|||
|
+ global escapedbinfile
|
|||
|
+ global srcdir
|
|||
|
+ global subdir
|
|||
|
+ global gdb_prompt
|
|||
|
+
|
|||
|
+ if [get_compiler_info ${binfile}] {
|
|||
|
+ return -1
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Start the program running and then wait for a bit, to be sure
|
|||
|
+ # that it can be attached to.
|
|||
|
+
|
|||
|
+ set testpid [eval exec $binfile &]
|
|||
|
+ exec sleep 2
|
|||
|
+
|
|||
|
+ # Stop the program
|
|||
|
+ remote_exec build "kill -s STOP ${testpid}"
|
|||
|
+
|
|||
|
+ # Start with clean gdb
|
|||
|
+ gdb_exit
|
|||
|
+ gdb_start
|
|||
|
+ gdb_reinitialize_dir $srcdir/$subdir
|
|||
|
+ gdb_load ${binfile}
|
|||
|
+
|
|||
|
+ # Verify that we can attach to the process by first giving its
|
|||
|
+ # executable name via the file command, and using attach with the
|
|||
|
+ # process ID.
|
|||
|
+
|
|||
|
+ set test "$threadtype: set file, before attach1 to stopped process"
|
|||
|
+ gdb_test_multiple "file $binfile" "$test" {
|
|||
|
+ -re "Load new symbol table from.*y or n. $" {
|
|||
|
+ gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \
|
|||
|
+ "$test (re-read)"
|
|||
|
+ }
|
|||
|
+ -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" {
|
|||
|
+ pass "$test"
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ set test "$threadtype: attach1 to stopped, after setting file"
|
|||
|
+ gdb_test_multiple "attach $testpid" "$test" {
|
|||
|
+ -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
|
|||
|
+ pass "$test"
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ if {[string equal $threadtype threaded]} {
|
|||
|
+ gdb_test "thread apply all bt" ".*sleep.*clone.*" "$threadtype: attach1 to stopped bt"
|
|||
|
+ } else {
|
|||
|
+ gdb_test "bt" ".*sleep.*main.*" "$threadtype: attach1 to stopped bt"
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Exit and detach the process.
|
|||
|
+
|
|||
|
+ gdb_exit
|
|||
|
+
|
|||
|
+ set fileid [open /proc/${testpid}/status r];
|
|||
|
+ gets $fileid line1;
|
|||
|
+ gets $fileid line2;
|
|||
|
+ close $fileid;
|
|||
|
+
|
|||
|
+ set test "$threadtype: attach1, exit leaves process stopped"
|
|||
|
+ if {[string match "*(stopped)*" $line2]} {
|
|||
|
+ pass $test
|
|||
|
+ } else {
|
|||
|
+ fail $test
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # At this point, the process should still be stopped
|
|||
|
+
|
|||
|
+ gdb_start
|
|||
|
+ gdb_reinitialize_dir $srcdir/$subdir
|
|||
|
+ gdb_load ${binfile}
|
|||
|
+
|
|||
|
+ # Verify that we can attach to the process just by giving the
|
|||
|
+ # process ID.
|
|||
|
+
|
|||
|
+ set test "$threadtype: attach2 to stopped, after setting file"
|
|||
|
+ gdb_test_multiple "attach $testpid" "$test" {
|
|||
|
+ -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*$gdb_prompt $" {
|
|||
|
+ pass "$test"
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ if {[string equal $threadtype threaded]} {
|
|||
|
+ gdb_test "thread apply all bt" ".*sleep.*clone.*" "$threadtype: attach2 to stopped bt"
|
|||
|
+ } else {
|
|||
|
+ gdb_test "bt" ".*sleep.*main.*" "$threadtype: attach2 to stopped bt"
|
|||
|
+ }
|
|||
|
+ gdb_breakpoint [gdb_get_line_number "$threadtype: Second sleep"]
|
|||
|
+ set test "$threadtype: attach2 continue"
|
|||
|
+ send_gdb "continue\n"
|
|||
|
+ gdb_expect {
|
|||
|
+ -re "Continuing"
|
|||
|
+ { pass "continue ($test)" }
|
|||
|
+ timeout
|
|||
|
+ { fail "continue ($test) (timeout)" }
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # For this to work we must be sure to consume the "Continuing."
|
|||
|
+ # message first, or GDB's signal handler may not be in place.
|
|||
|
+ after 1000 {send_gdb "\003"}
|
|||
|
+ set test "$threadtype: attach2 stop interrupt"
|
|||
|
+ gdb_expect 10 {
|
|||
|
+ -re "Program received signal SIGINT.*$gdb_prompt $"
|
|||
|
+ {
|
|||
|
+ pass $test
|
|||
|
+ }
|
|||
|
+ -re "Breakpoint \[0-9\].*$srcfile.*$gdb_prompt $"
|
|||
|
+ {
|
|||
|
+ pass $test
|
|||
|
+ }
|
|||
|
+ timeout
|
|||
|
+ {
|
|||
|
+ fail $test
|
|||
|
+ }
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ gdb_exit
|
|||
|
+
|
|||
|
+ # Avoid some race:
|
|||
|
+ exec sleep 2
|
|||
|
+
|
|||
|
+ # At this point, the process should be sleeping
|
|||
|
+
|
|||
|
+ set fileid2 [open /proc/${testpid}/status r];
|
|||
|
+ gets $fileid2 line1;
|
|||
|
+ gets $fileid2 line2;
|
|||
|
+ close $fileid2;
|
|||
|
+
|
|||
|
+ set test "$threadtype: attach2, exit leaves process sleeping"
|
|||
|
+ if {[string match "*(sleeping)*" $line2]} {
|
|||
|
+ pass $test
|
|||
|
+ } else {
|
|||
|
+ fail $test
|
|||
|
+ }
|
|||
|
+
|
|||
|
+ # Make sure we don't leave a process around to confuse
|
|||
|
+ # the next test run (and prevent the compile by keeping
|
|||
|
+ # the text file busy), in case the "set should_exit" didn't
|
|||
|
+ # work.
|
|||
|
+
|
|||
|
+ remote_exec build "kill -9 ${testpid}"
|
|||
|
+}
|
|||
|
+
|
|||
|
+# build the test case first without threads
|
|||
|
+#
|
|||
|
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
|
|||
|
+ gdb_suppress_entire_file "Testcase nonthraded compile failed, so all tests in this file will automatically fail."
|
|||
|
+}
|
|||
|
+
|
|||
|
+corefunc nonthreaded
|
|||
|
+
|
|||
|
+# build the test case first without threads
|
|||
|
+#
|
|||
|
+if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
|
|||
|
+ gdb_suppress_entire_file "Testcase threaded compile failed, so all tests in this file will automatically fail."
|
|||
|
+}
|
|||
|
+
|
|||
|
+corefunc threaded
|
|||
|
+
|
|||
|
+return 0
|