locks.h (write_barrier): New.

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

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

From-SVN: r121053

libjava/ChangeLog

+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.

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