perf_event__synthesize_attr
ret = perf_event__synthesize_attr(&inject->tool, &attr, evsel->core.ids,
return perf_event__synthesize_attr(&td->tool, &attr, 1, id, process);
err = perf_event__synthesize_attr(tool, &evsel->core.attr, evsel->core.ids,
int perf_event__synthesize_attr(const struct perf_tool *tool, struct perf_event_attr *attr, u32 ids, u64 *id, perf_event__handler_t process);