perf_thread_map__get
evsel->threads = perf_thread_map__get(evlist->threads);
evlist->threads = perf_thread_map__get(threads);
LIBPERF_API struct perf_thread_map *perf_thread_map__get(struct perf_thread_map *map);
perf_thread_map__get(threads);
evsel->core.threads = perf_thread_map__get(orig->core.threads);
pthread_map->threads = perf_thread_map__get(pevsel->evsel.core.threads);