X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=urcu-static.h;h=5a75dde18630a84908f82b3096cb166a875b8ae6;hb=ddf7eefbdd2ff77c473534dfa89c3fe12c206d67;hp=853c327d5eec3fb49b6e2ea4997c981379925571;hpb=fdf01eeda9f634a32db3fc90cd342da08d7a259d;p=urcu.git

diff --git a/urcu-static.h b/urcu-static.h
index 853c327..5a75dde 100644
--- a/urcu-static.h
+++ b/urcu-static.h
@@ -56,10 +56,13 @@ extern "C" {
 
 /* If the headers do not support SYS_membarrier, statically use RCU_MB */
 #ifdef SYS_membarrier
-#define membarrier(...)		syscall(__NR_membarrier, __VA_ARGS__)
+# define MEMBARRIER_EXPEDITED		(1 << 0)
+# define MEMBARRIER_DELAYED		(1 << 1)
+# define MEMBARRIER_QUERY		(1 << 16)
+# define membarrier(...)		syscall(__NR_membarrier, __VA_ARGS__)
 #else
-#undef RCU_MEMBARRIER
-#define RCU_MB
+# undef RCU_MEMBARRIER
+# define RCU_MB
 #endif
 #endif
 
@@ -74,7 +77,12 @@ extern "C" {
 /*
  * The signal number used by the RCU library can be overridden with
  * -DSIGRCU= when compiling the library.
+ * Provide backward compatibility for liburcu 0.3.x SIGURCU.
  */
+#ifdef SIGURCU
+#define SIGRCU SIGURCU
+#endif
+
 #ifndef SIGRCU
 #define SIGRCU SIGUSR1
 #endif