From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 12 Jul 2007 18:26:36 +0000
Subject: 2.5-18.1

---
 stdlib/on_exit.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'stdlib/on_exit.c')

diff --git a/stdlib/on_exit.c b/stdlib/on_exit.c
index d98fbb3..e777604 100644
--- a/stdlib/on_exit.c
+++ b/stdlib/on_exit.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -18,6 +18,8 @@
 
 #include <stdlib.h>
 #include "exit.h"
+#include <atomic.h>
+#include <sysdep.h>
 
 /* Register a function to be called by exit.  */
 int
@@ -28,9 +30,13 @@ __on_exit (void (*func) (int status, void *arg), void *arg)
   if (new == NULL)
     return -1;
 
-  new->flavor = ef_on;
+#ifdef PTR_MANGLE
+  PTR_MANGLE (func);
+#endif
   new->func.on.fn = func;
   new->func.on.arg = arg;
+  atomic_write_barrier ();
+  new->flavor = ef_on;
   return 0;
 }
 weak_alias (__on_exit, on_exit)
-- 
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