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-rw-r--r--linuxthreads/sysdeps/sparc/sparc64/pt-machine.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
index 02167bd601..e22f4fed3c 100644
--- a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
+++ b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
@@ -1,6 +1,6 @@
/* Machine-dependent pthreads configuration and inline functions.
Sparc v9 version.
- Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>.
@@ -41,6 +41,9 @@ testandset (int *spinlock)
/* FIXME: is stbar OK, or should we use the more general membar instruction?
If so, which mode to pass to membar? */
#define MEMORY_BARRIER() __asm__ __volatile__("stbar" : : : "memory")
+/* Write barrier. */
+#define WRITE_MEMORY_BARRIER() \
+ __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory")
/* Get some notion of the current stack. Need not be exactly the top