diff options
| -rw-r--r-- | tools/include/linux/compiler.h | 4 | ||||
| -rw-r--r-- | tools/perf/perf-sys.h | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 88461f09cc86..f0e72674c52d 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -1,6 +1,10 @@ #ifndef _TOOLS_LINUX_COMPILER_H_ #define _TOOLS_LINUX_COMPILER_H_ +/* Optimization barrier */ +/* The "volatile" is due to gcc bugs */ +#define barrier() __asm__ __volatile__("": : :"memory") + #ifndef __always_inline # define __always_inline inline __attribute__((always_inline)) #endif diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index bf349ea3984f..f44e53efd9a4 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -153,8 +153,6 @@ #define CPUINFO_PROC {"model name"} #endif -#define barrier() asm volatile ("" ::: "memory") - #ifndef cpu_relax #define cpu_relax() barrier() #endif |