From: Andrew Haley <aph@redhat.com>
Date: Mon, 22 Jan 2007 12:27:48 +0000 (+0000)
Subject: locks.h (write_barrier): New.
X-Git-Tag: releases/gcc-4.3.0~7321
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4d8f018e30914defc592def752dbf00af463611e;p=thirdparty%2Fgcc.git

locks.h (write_barrier): New.

2007-01-22  Andrew Haley  <aph@redhat.com>

        * sysdep/alpha/locks.h (write_barrier): New.

From-SVN: r121053
---

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 2c0a0f7c11e3..16c457b3f99f 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,7 @@
+2007-01-22  Andrew Haley  <aph@redhat.com>
+
+	* sysdep/alpha/locks.h (write_barrier): New.
+
 2007-01-21  Matthias Klose  <doko@debian.org>
 
 	* Makefile.am (install-exec-hook): Use transformed name.
diff --git a/libjava/sysdep/alpha/locks.h b/libjava/sysdep/alpha/locks.h
index 1c20249cce39..c5f7f4993e6b 100644
--- a/libjava/sysdep/alpha/locks.h
+++ b/libjava/sysdep/alpha/locks.h
@@ -50,4 +50,12 @@ compare_and_swap_release(volatile obj_addr_t *addr,
   return compare_and_swap(addr, old, new_val);
 }
 
+// Ensure that prior stores to memory are completed with respect to other
+// processors.
+inline static void
+write_barrier()
+{
+  __asm__ __volatile__("wmb" : : : "memory");
+}
+
 #endif