From f1e89bc3407002bf7342326be7f9167d316fa624 Mon Sep 17 00:00:00 2001
From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 21 Jun 2006 08:59:44 +0000
Subject: [PATCH] * critical.c (GOMP_critical_name_start): Fix *pptr
initialization when gomp_mutex_t is larger than pointer and
HAVE_SYNC_BUILTINS is defined.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114843 138bc75d-0d04-0410-961f-82ee72b054a4
---
libgomp/ChangeLog | 6 ++++++
libgomp/critical.c | 6 ++++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index dc86f86bdac5..8cd5519f404d 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,9 @@
+2006-06-21 Jakub Jelinek <jakub@redhat.com>
+
+ * critical.c (GOMP_critical_name_start): Fix *pptr initialization
+ when gomp_mutex_t is larger than pointer and HAVE_SYNC_BUILTINS is
+ defined.
+
2006-06-20 Jakub Jelinek <jakub@redhat.com>
PR libgomp/26175
diff --git a/libgomp/critical.c b/libgomp/critical.c
index 70159ec7a6ed..90821634b5e9 100644
--- a/libgomp/critical.c
+++ b/libgomp/critical.c
@@ -72,12 +72,14 @@ GOMP_critical_name_start (void **pptr)
gomp_mutex_t *nlock = gomp_malloc (sizeof (gomp_mutex_t));
gomp_mutex_init (nlock);
- plock = __sync_val_compare_and_swap (pptr, plock, nlock);
- if (plock != nlock)
+ plock = __sync_val_compare_and_swap (pptr, NULL, nlock);
+ if (plock != NULL)
{
gomp_mutex_destroy (nlock);
free (nlock);
}
+ else
+ plock = nlock;
#else
gomp_mutex_lock (&create_lock_lock);
plock = *pptr;
--
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