X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=include%2Furcu%2Fcompiler.h;fp=include%2Furcu%2Fcompiler.h;h=48211293417131c6ff73d0d107de84c4284d9589;hp=5b994076f47c913b28d636ae6e7262261befe103;hb=865024e9245c55286122413aaf7366dc06a00f27;hpb=3afcf5a0407c69b32603a249e8e7b3d309584a85

diff --git a/include/urcu/compiler.h b/include/urcu/compiler.h
index 5b99407..4821129 100644
--- a/include/urcu/compiler.h
+++ b/include/urcu/compiler.h
@@ -15,10 +15,16 @@
 # include <type_traits>	/* for std::remove_cv */
 #endif
 
+#include <urcu/config.h>
+
 #define caa_likely(x)	__builtin_expect(!!(x), 1)
 #define caa_unlikely(x)	__builtin_expect(!!(x), 0)
 
-#define	cmm_barrier()	__asm__ __volatile__ ("" : : : "memory")
+#ifdef CONFIG_RCU_USE_ATOMIC_BUILTINS
+#  define cmm_barrier() __atomic_signal_fence(__ATOMIC_SEQ_CST)
+#else
+#  define cmm_barrier() __asm__ __volatile__ ("" : : : "memory")
+#endif
 
 /*
  * Instruct the compiler to perform only a single access to a variable