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authorJakub Jelinek <jakub@redhat.com>2005-11-19 20:05:14 +0000
committerJakub Jelinek <jakub@redhat.com>2005-11-19 20:05:14 +0000
commit8e8c8d3c871666d3c4fb0cda0147fb2231beeb09 (patch)
tree8205dc9da58d4c3090372b155fdede74e7b3d6b1 /nptl
parentb9616a4d2d0ff113b95a638127ad27c98e6c713b (diff)
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Updated to fedora-glibc-20051119T1959
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog5
-rw-r--r--nptl/sysdeps/pthread/unwind-forcedunwind.c6
2 files changed, 10 insertions, 1 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 25feaaf6e5..1f9cbc7139 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,8 @@
+2005-11-17  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/pthread/unwind-forcedunwind.c (pthread_cancel_init): Put
+	a write barrier before writing libgcc_s_getcfa.
+
 2005-11-06  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/unix/sysv/linux/configure: Removed.
diff --git a/nptl/sysdeps/pthread/unwind-forcedunwind.c b/nptl/sysdeps/pthread/unwind-forcedunwind.c
index b0f8487086..9a38704aeb 100644
--- a/nptl/sysdeps/pthread/unwind-forcedunwind.c
+++ b/nptl/sysdeps/pthread/unwind-forcedunwind.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>.
 
@@ -56,6 +56,10 @@ pthread_cancel_init (void)
   libgcc_s_resume = resume;
   libgcc_s_personality = personality;
   libgcc_s_forcedunwind = forcedunwind;
+  /* Make sure libgcc_s_getcfa is written last.  Otherwise,
+     pthread_cancel_init might return early even when the pointer the
+     caller is interested in is not initialized yet.  */
+  atomic_write_barrier ();
   libgcc_s_getcfa = getcfa;
 }