Fix: only define membarrier system call on Linux

[urcu.git] / urcu / arch / aarch64.h

diff --git a/urcu/arch/aarch64.h b/urcu/arch/aarch64.h
index 946e1c64699f8a97e7d5d18de5b2e02aa8aed7eb..d6a133758dffca0c22ca5f6e94314c4c6d0d5390 100644 (file)
--- a/urcu/arch/aarch64.h
+++ b/urcu/arch/aarch64.h
@@ -33,25 +33,12 @@ extern "C" {
 #include <stdlib.h>
 #include <sys/time.h>
 
-typedef unsigned long long cycles_t;
-
-static inline cycles_t caa_get_cycles (void)
-{
-       cycles_t thetime;
-       struct timeval tv;
-
-       if (gettimeofday(&tv, NULL) != 0)
-               return 0;
-       thetime = ((cycles_t)tv.tv_sec) * 1000000ULL + ((cycles_t)tv.tv_usec);
-       return (cycles_t)thetime;
-}
-
 /*
- * Define the membarrier system call number if not yet available in the
- * system headers. aarch64 implements asm-generic/unistd.h system call
+ * On Linux, define the membarrier system call number if not yet available in
+ * the system headers. aarch64 implements asm-generic/unistd.h system call
  * numbers.
  */
-#ifndef __NR_membarrier
+#if (defined(__linux__) && !defined(__NR_membarrier))
 #define __NR_membarrier                283
 #endif