thread__main_thread  367 tools/perf/util/db-export.c 	main_thread = thread__main_thread(al->machine, thread);
thread__main_thread  537 tools/perf/util/db-export.c 	main_thread = thread__main_thread(machine, thread);
thread__main_thread   97 tools/perf/util/thread.h struct thread *thread__main_thread(struct machine *machine, struct thread *thread);