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-rw-r--r--tools/lib/perf/include/perf/event.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h
index 48583e441d9b..4d0c02ba3f7d 100644
--- a/tools/lib/perf/include/perf/event.h
+++ b/tools/lib/perf/include/perf/event.h
@@ -8,6 +8,8 @@
#include <linux/bpf.h>
#include <sys/types.h> /* pid_t */
+#define event_contains(obj, mem) ((obj).header.size > offsetof(typeof(obj), mem))
+
struct perf_record_mmap {
struct perf_event_header header;
__u32 pid, tid;