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-rw-r--r--src/vppinfra/clib.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vppinfra/clib.h b/src/vppinfra/clib.h
index 0386c756833..fbb2a21c6b9 100644
--- a/src/vppinfra/clib.h
+++ b/src/vppinfra/clib.h
@@ -100,6 +100,12 @@
/* Full memory barrier (read and write). */
#define CLIB_MEMORY_BARRIER() __sync_synchronize ()
+#if __x86_64__
+#define CLIB_MEMORY_STORE_BARRIER() __builtin_ia32_sfence ()
+#else
+#define CLIB_MEMORY_STORE_BARRIER() __sync_synchronize ()
+#endif
+
/* Arranges for function to be called before main. */
#define INIT_FUNCTION(decl) \
decl __attribute ((constructor)); \