perf_probe
.probe = perf_probe,
.perf_probe = perf_trace_##call,
if (!call->class->perf_probe)
call->class->perf_probe,
call->class->perf_probe,
call->class->perf_probe = perf_event_raw_event_synth;
call->class->perf_probe,
call->class->perf_probe,
user->class.perf_probe = user_event_perf;