Update.

2003-09-22  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Don't play tricks
	like jumping over the lock prefix.

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index bbe26fa..cda72ea 100644 (file)
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,8 @@
+2003-09-22  Ulrich Drepper  <drepper@redhat.com>
+
+       * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Don't play tricks
+       like jumping over the lock prefix.
+
 2003-09-21  Ulrich Drepper  <drepper@redhat.com>
 
        * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Completely revamp the

diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
index 35d1321..900c9cd 100644 (file)
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
@@ -184,7 +184,10 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
     2  -  taken by more users */
 
 
-#if defined NOT_IN_libc || defined UP
+//#if defined NOT_IN_libc || defined UP
+/* According to AMD it is not necessary to play tricks with avoiding the
+   lock instruction.  */
+#if 1
 # define lll_trylock(futex) lll_mutex_trylock (futex)
 # define lll_lock(futex) lll_mutex_lock (futex)
 # define lll_unlock(futex) lll_mutex_unlock (futex)