1 // SPDX-License-Identifier: GPL-2.0
26 	if (dir->d_name[0] == '.')  in filter()
50 			perf_thread_map__set_pid(threads, i, atoi(namelist[i]->d_name));  in thread_map__new_by_pid()
51 		threads->nr = items;  in thread_map__new_by_pid()
52 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_pid()
68 		threads->nr = 1;  in thread_map__new_by_tid()
69 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_tid()
79 	char path[NAME_MAX + 1 + 6];  in __thread_map__new_all_cpus()  local
90 	threads->nr = 0;  in __thread_map__new_all_cpus()
91 	refcount_set(&threads->refcnt, 1);  in __thread_map__new_all_cpus()
96 		pid_t pid = strtol(dirent->d_name, &end, 10);  in __thread_map__new_all_cpus()
101 		snprintf(path, sizeof(path), "/proc/%s", dirent->d_name);  in __thread_map__new_all_cpus()
106 			if (stat(path, &st) != 0 || st.st_uid != uid)  in __thread_map__new_all_cpus()
110 		snprintf(path, sizeof(path), "/proc/%d/task", pid);  in __thread_map__new_all_cpus()
111 		items = scandir(path, &namelist, filter, NULL);  in __thread_map__new_all_cpus()
115 		while (threads->nr + items >= max_threads) {  in __thread_map__new_all_cpus()
131 			perf_thread_map__set_pid(threads, threads->nr + i,  in __thread_map__new_all_cpus()
132 						    atoi(namelist[i]->d_name));  in __thread_map__new_all_cpus()
139 		threads->nr += items;  in __thread_map__new_all_cpus()
173 	if (pid != -1)  in thread_map__new()
176 	if (tid == -1 && uid != UINT_MAX)  in thread_map__new()
199 		pid = strtol(pos->s, &end_ptr, 10);  in thread_map__new_by_pid_str()
221 			perf_thread_map__set_pid(threads, j++, atoi(namelist[i]->d_name));  in thread_map__new_by_pid_str()
224 		threads->nr = total_tasks;  in thread_map__new_by_pid_str()
231 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_pid_str()
254 	/* perf-stat expects threads to be generated even if tid not given */  in thread_map__new_by_tid_str()
263 		tid = strtol(pos->s, &end_ptr, 10);  in thread_map__new_by_tid_str()
279 		perf_thread_map__set_pid(threads, ntasks - 1, tid);  in thread_map__new_by_tid_str()
280 		threads->nr = ntasks;  in thread_map__new_by_tid_str()
285 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_tid_str()
312 				 threads->nr, threads->nr > 1 ? "s" : "");  in thread_map__fprintf()
313 	for (i = 0; i < threads->nr; ++i)  in thread_map__fprintf()
321 	char *path;  in get_comm()  local
325 	if (asprintf(&path, "%s/%d/comm", procfs__mountpoint(), pid) == -1)  in get_comm()
326 		return -ENOMEM;  in get_comm()
328 	err = filename__read_str(path, comm, &size);  in get_comm()
339 	free(path);  in get_comm()
343 static void comm_init(struct perf_thread_map *map, int i)  in comm_init()  argument
345 	pid_t pid = perf_thread_map__pid(map, i);  in comm_init()
349 	if (pid == -1) {  in comm_init()
350 		map->map[i].comm = strdup("dummy");  in comm_init()
355 	 * The comm name is like extra bonus ;-),  in comm_init()
361 	map->map[i].comm = comm;  in comm_init()
368 	for (i = 0; i < threads->nr; ++i)  in thread_map__read_comms()
377 	threads->nr = (int) event->nr;  in thread_map__copy_event()
379 	for (i = 0; i < event->nr; i++) {  in thread_map__copy_event()
380 		perf_thread_map__set_pid(threads, i, (pid_t) event->entries[i].pid);  in thread_map__copy_event()
381 		threads->map[i].comm = strndup(event->entries[i].comm, 16);  in thread_map__copy_event()
384 	refcount_set(&threads->refcnt, 1);  in thread_map__copy_event()
391 	threads = thread_map__alloc(event->nr);  in thread_map__new_event()
402 	for (i = 0; i < threads->nr; ++i) {  in thread_map__has()
403 		if (threads->map[i].pid == pid)  in thread_map__has()
414 	if (threads->nr < 1)  in thread_map__remove()
415 		return -EINVAL;  in thread_map__remove()
417 	if (idx >= threads->nr)  in thread_map__remove()
418 		return -EINVAL;  in thread_map__remove()
423 	zfree(&threads->map[idx].comm);  in thread_map__remove()
425 	for (i = idx; i < threads->nr - 1; i++)  in thread_map__remove()
426 		threads->map[i] = threads->map[i + 1];  in thread_map__remove()
428 	threads->nr--;  in thread_map__remove()