perf_event__synthesize_thread_map
err = perf_event__synthesize_thread_map(&rec->tool, thread_map,
ret = perf_event__synthesize_thread_map(NULL, threads,
err = perf_event__synthesize_thread_map(NULL, map,
return perf_event__synthesize_thread_map(tool, threads, process, machine,
int perf_event__synthesize_thread_map(const struct perf_tool *tool, struct perf_thread_map *threads, perf_event__handler_t process, struct machine *machine, bool needs_mmap, bool mmap_data);