6 files changed, 160 insertions, 2 deletions
diff --git a/selftest/gdb_backtrace b/selftest/gdb_backtrace
new file mode 100755
index 0000000000..826381e900
--- /dev/null
+++ b/selftest/gdb_backtrace
@@ -0,0 +1,87 @@
+#!/bin/sh
+
+BASENAME=`basename $0`
+
+if [ -n "$VALGRIND" -o -n "$SMBD_VALGRIND" ]; then
+	echo "${BASENAME}: Not running debugger under valgrind"
+	exit 1
+fi
+
+# we want everything on stderr, so the program is not disturbed
+exec 1>&2
+
+BASENAME=`basename $0`
+UNAME=`uname`
+
+PID=$1
+BINARY=$2
+
+test x"${PID}" = x"" && {
+	echo "Usage: ${BASENAME} <pid> [<binary>]"
+	exit 1
+}
+
+DB_LIST="gdb"
+case "${UNAME}" in
+	#
+	# on Tru64 we need to try ladebug first
+	# because gdb crashes itself...
+	#
+	OSF1)
+		DB_LIST="ladebug ${DB_LIST}"
+	;;
+esac
+
+for DB in ${DB_LIST}; do
+	DB_BIN=`which ${DB} 2>/dev/null | grep '^/'`
+	test x"${DB_BIN}" != x"" && {
+		break
+	}
+done
+
+test x"${DB_BIN}" = x"" && {
+	echo "${BASENAME}: ERROR: No debugger found."
+	exit 1
+}
+
+#
+# we first try to use /proc/${PID}/exe
+# then fallback to the binary from the commandline
+# then we search for the commandline argument with
+# 'which'
+#
+test -f "/proc/${PID}/exe" && BINARY="/proc/${PID}/exe"
+test x"${BINARY}" = x"" && BINARY="/proc/${PID}/exe"
+test -f "${BINARY}" || BINARY=`which ${BINARY}`
+
+test -f "${BINARY}" || {
+	echo "${BASENAME}: ERROR: Cannot find binary '${BINARY}'."
+	exit 1
+}
+
+echo "${BASENAME}: Trying to use ${DB_BIN} on ${BINARY} on PID ${PID}"
+
+BATCHFILE_PRE=/tmp/gdb_backtrace_pre.$$
+BATCHFILE_MAIN=/tmp/gdb_backtrace_main.$$
+case "${DB}" in
+	ladebug)
+cat << EOF  > ${BATCHFILE_PRE}
+set \$stoponattach
+EOF
+
+cat << EOF  > ${BATCHFILE_MAIN}
+where
+quit
+EOF
+	${DB_BIN} -c "${BATCHFILE_MAIN}" -i "${BATCHFILE_PRE}" -pid "${PID}" "${BINARY}"
+	;;
+	gdb)
+cat << EOF  > ${BATCHFILE_MAIN}
+set height 1000
+bt full
+quit
+EOF
+	${DB_BIN} -x "${BATCHFILE_MAIN}" "${BINARY}" "${PID}"
+	;;
+esac
+/bin/rm -f ${BATCHFILE_PRE} ${BATCHFILE_MAIN}
diff --git a/selftest/gdb_backtrace_test.c b/selftest/gdb_backtrace_test.c
new file mode 100644
index 0000000000..506784f675
--- /dev/null
+++ b/selftest/gdb_backtrace_test.c
@@ -0,0 +1,42 @@
+/*
+
+add a usefull tool to test the gdb_backtrace script
+
+just compile it with
+cc -g -o gdb_backtrace_test gdb_backtrace_test.c
+
+and run it in the same directory where your gdb_backtrace script is.
+
+2006 - Stefan Metzmacher <metze@samba.org>
+
+*/
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+
+static const char *prog;
+
+static void sig_fault(int sig)
+{
+	int ret;
+	char cmdstr[200];
+
+	snprintf(cmdstr, sizeof(cmdstr),
+		 "./gdb_backtrace %u %s",
+		 getpid(), prog);
+	printf("sig_fault start: %s\n", cmdstr);
+	ret = system(cmdstr);
+	printf("sig_fault end: %d\n", ret);
+}
+
+int main(int argc, const char **argv)
+{
+	prog = argv[0];
+
+	signal(SIGABRT, sig_fault);
+
+	abort();
+	return 0;
+}
diff --git a/selftest/gdb_run b/selftest/gdb_run
new file mode 100755
index 0000000000..8ad101ed60
--- /dev/null
+++ b/selftest/gdb_run
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+ENV="$1"
+
+shift 1
+
+if test -z "$TMPDIR"; then
+	TMPDIR="/tmp"
+fi
+
+TMPFILE=$TMPDIR/gdb_run.$$
+cat << EOF  > $TMPFILE
+run
+bt
+EOF
+
+trap "/bin/rm -f $TMPFILE" EXIT
+CMD="gdb -x $TMPFILE --args $@"
+echo $CMD
+eval $ENV "$CMD"
diff --git a/selftest/selftest.pl b/selftest/selftest.pl
index 2484bd0687..aa99b2ed6f 100755
--- a/selftest/selftest.pl
+++ b/selftest/selftest.pl
@@ -573,7 +573,7 @@ sub write_clientconf($$)
 	print CF "
 	private dir = $prefix_abs/client/private
 	name resolve order = bcast
-	panic action = $srcdir_abs/script/gdb_backtrace \%PID\% \%PROG\%
+	panic action = $RealBin/gdb_backtrace \%PID\% \%PROG\%
 	max xmit = 32K
 	notify:inotify = false
 	ldb:nosync = true
diff --git a/selftest/target/Samba4.pm b/selftest/target/Samba4.pm
index 9364008ee2..8c79a31448 100644
--- a/selftest/target/Samba4.pm
+++ b/selftest/target/Samba4.pm
@@ -562,7 +562,7 @@ sub provision($$$$$$)
 	name resolve order = bcast
 	interfaces = $interfaces
 	tls dh params file = $tlsdir/dhparms.pem
-	panic action = $srcdir/script/gdb_backtrace \%PID% \%PROG%
+	panic action = $RealBin/gdb_backtrace \%PID% \%PROG%
 	wins support = yes
 	server role = $server_role
 	max xmit = 32K
diff --git a/selftest/valgrind_run b/selftest/valgrind_run
new file mode 100755
index 0000000000..5171d171a7
--- /dev/null
+++ b/selftest/valgrind_run
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+ENV="$1"
+
+shift 1
+
+CMD="$ENV valgrind -q --db-attach=yes --num-callers=30 $@"
+echo $CMD
+eval $CMD