* nss/getXXbyYY_r.c: Include atomic.h.

	(INTERNAL (REENTRANT_NAME)): Write startp after start_fct,
	add atomic_write_barrier () in between.

diff --git a/ChangeLog b/ChangeLog
index bf4cf42..1f7597e 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2006-12-19  Jakub Jelinek  <jakub@redhat.com>
 
+       * nss/getXXbyYY_r.c: Include atomic.h.
+       (INTERNAL (REENTRANT_NAME)): Write startp after start_fct,
+       add atomic_write_barrier () in between.
+
        * stdlib/Makefile (tests): Add tst-makecontext.
        * stdlib/tst-makecontext.c: New test.
 

diff --git a/nss/getXXbyYY_r.c b/nss/getXXbyYY_r.c
index 34c305f..080163a 100644 (file)
--- a/nss/getXXbyYY_r.c
+++ b/nss/getXXbyYY_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2002, 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <assert.h>
+#include <atomic.h>
 #include <errno.h>
 #include <stdbool.h>
 #include "nsswitch.h"
@@ -173,9 +174,6 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
        startp = (service_user *) -1l;
       else
        {
-         startp = nip;
-         start_fct = fct.l;
-
 #ifdef NEED__RES
          /* The resolver code will really be used so we have to
             initialize it.  */
@@ -190,6 +188,11 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
          if (!_res_hconf.initialized)
            _res_hconf_init ();
 #endif /* need _res_hconf */
+
+         start_fct = fct.l;
+         /* Make sure start_fct is written before startp.  */
+         atomic_write_barrier ();
+         startp = nip;
        }
     }
   else