From 246592d8f7eaf899ec6292cac4985f7bcc8b65fd Mon Sep 17 00:00:00 2001

From: Lennart Poettering <lennart@poettering.net>

Date: Wed, 20 Nov 2013 22:11:10 +0100

Subject: [PATCH] valgrind: make running PID 1 in valgrind useful

Since valgrind only generates useful output on exit() (rather than

exec()) we need to explicitly exit when valgrind is detected.

Conflicts:

	src/core/main.c

---

 configure.ac    |  2 +-

 src/core/main.c | 13 +++++++++++++

 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac

index 9904e25..6232cf8 100644

--- a/configure.ac

+++ b/configure.ac

@@ -814,7 +814,7 @@ AC_DEFINE_UNQUOTED(TELINIT, ["$TELINIT"], [Path to telinit])

 AC_SUBST(TELINIT)

-AC_CHECK_HEADERS_ONCE([valgrind/memcheck.h])

+AC_CHECK_HEADERS_ONCE([valgrind/memcheck.h valgrind/valgrind.h])

 # ------------------------------------------------------------------------------

 have_myhostname=no

diff --git a/src/core/main.c b/src/core/main.c

index 00fd394..58c3a9e 100644

--- a/src/core/main.c

+++ b/src/core/main.c

@@ -34,6 +34,10 @@

 #include <sys/prctl.h>

 #include <sys/mount.h>

+#ifdef HAVE_VALGRIND_VALGRIND_H

+#include <valgrind/valgrind.h>

+#endif

+

 #include "manager.h"

 #include "log.h"

 #include "load-fragment.h"

@@ -1855,6 +1859,15 @@ finish:

         if (fds)

                 fdset_free(fds);

+#ifdef HAVE_VALGRIND_VALGRIND_H

+        /* If we are PID 1 and running under valgrind, then let's exit

+         * here explicitly. valgrind will only generate nice output on

+         * exit(), not on exec(), hence let's do the former not the

+         * latter here. */

+        if (getpid() == 1 && RUNNING_ON_VALGRIND)

+                return 0;

+#endif

+

         if (shutdown_verb) {

                 const char * command_line[] = {

                         SYSTEMD_SHUTDOWN_BINARY_PATH,