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-rw-r--r--libc/kernel/uapi/linux/perf_event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libc/kernel/uapi/linux/perf_event.h b/libc/kernel/uapi/linux/perf_event.h
index 326827e94..97a2e99a8 100644
--- a/libc/kernel/uapi/linux/perf_event.h
+++ b/libc/kernel/uapi/linux/perf_event.h
@@ -329,6 +329,7 @@ enum perf_callchain_context {
#define PERF_AUX_FLAG_TRUNCATED 0x01
#define PERF_AUX_FLAG_OVERWRITE 0x02
#define PERF_AUX_FLAG_PARTIAL 0x04
+#define PERF_AUX_FLAG_COLLISION 0x08
#define PERF_FLAG_FD_NO_GROUP (1UL << 0)
#define PERF_FLAG_FD_OUTPUT (1UL << 1)
#define PERF_FLAG_PID_CGROUP (1UL << 2)