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Diffstat (limited to 'tools/perf/tests/rdpmc.c')
| -rw-r--r-- | tools/perf/tests/rdpmc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/tests/rdpmc.c index 46649c2..ff94886 100644 --- a/tools/perf/tests/rdpmc.c +++ b/tools/perf/tests/rdpmc.c @@ -9,6 +9,8 @@ #if defined(__x86_64__) || defined(__i386__) +#define barrier() asm volatile("" ::: "memory") + static u64 rdpmc(unsigned int counter) { unsigned int low, high; |