1 files changed, 14 insertions, 2 deletions

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 469fbf2daea4..00472646b3bf 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -174,13 +174,25 @@ static inline unsigned long long rdclock(void)
         (void) (&_min1 == &_min2);              \
         _min1 < _min2 ? _min1 : _min2; })
 
+extern bool test_attr__enabled;
+void test_attr__init(void);
+void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
+                     int fd, int group_fd, unsigned long flags);
+
 static inline int
 sys_perf_event_open(struct perf_event_attr *attr,
                       pid_t pid, int cpu, int group_fd,
                       unsigned long flags)
 {
-        return syscall(__NR_perf_event_open, attr, pid, cpu,
-                       group_fd, flags);
+        int fd;
+
+        fd = syscall(__NR_perf_event_open, attr, pid, cpu,
+                     group_fd, flags);
+
+        if (unlikely(test_attr__enabled))
+                test_attr__open(attr, pid, cpu, fd, group_fd, flags);
+
+        return fd;
 }
 
 #define MAX_COUNTERS                    256