1 // SPDX-License-Identifier: GPL-2.0
25 	if (dir->d_name[0] == '.')  in filter()
49 			perf_thread_map__set_pid(threads, i, atoi(namelist[i]->d_name));  in thread_map__new_by_pid()
50 		threads->nr = items;  in thread_map__new_by_pid()
51 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_pid()
67 		threads->nr = 1;  in thread_map__new_by_tid()
68 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_tid()
78 	char path[NAME_MAX + 1 + 6];  in __thread_map__new_all_cpus()  local
89 	threads->nr = 0;  in __thread_map__new_all_cpus()
90 	refcount_set(&threads->refcnt, 1);  in __thread_map__new_all_cpus()
95 		pid_t pid = strtol(dirent->d_name, &end, 10);  in __thread_map__new_all_cpus()
100 		snprintf(path, sizeof(path), "/proc/%s", dirent->d_name);  in __thread_map__new_all_cpus()
105 			if (stat(path, &st) != 0 || st.st_uid != uid)  in __thread_map__new_all_cpus()
109 		snprintf(path, sizeof(path), "/proc/%d/task", pid);  in __thread_map__new_all_cpus()
110 		items = scandir(path, &namelist, filter, NULL);  in __thread_map__new_all_cpus()
114 		while (threads->nr + items >= max_threads) {  in __thread_map__new_all_cpus()
130 			perf_thread_map__set_pid(threads, threads->nr + i,  in __thread_map__new_all_cpus()
131 						    atoi(namelist[i]->d_name));  in __thread_map__new_all_cpus()
138 		threads->nr += items;  in __thread_map__new_all_cpus()
172 	if (pid != -1)  in thread_map__new()
175 	if (tid == -1 && uid != UINT_MAX)  in thread_map__new()
198 		pid = strtol(pos->s, &end_ptr, 10);  in thread_map__new_by_pid_str()
220 			perf_thread_map__set_pid(threads, j++, atoi(namelist[i]->d_name));  in thread_map__new_by_pid_str()
223 		threads->nr = total_tasks;  in thread_map__new_by_pid_str()
230 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_pid_str()
253 	/* perf-stat expects threads to be generated even if tid not given */  in thread_map__new_by_tid_str()
262 		tid = strtol(pos->s, &end_ptr, 10);  in thread_map__new_by_tid_str()
278 		perf_thread_map__set_pid(threads, ntasks - 1, tid);  in thread_map__new_by_tid_str()
279 		threads->nr = ntasks;  in thread_map__new_by_tid_str()
283 		refcount_set(&threads->refcnt, 1);  in thread_map__new_by_tid_str()
311 				 threads->nr, threads->nr > 1 ? "s" : "");  in thread_map__fprintf()
312 	for (i = 0; i < threads->nr; ++i)  in thread_map__fprintf()
320 	char *path;  in get_comm()  local
324 	if (asprintf(&path, "%s/%d/comm", procfs__mountpoint(), pid) == -1)  in get_comm()
325 		return -ENOMEM;  in get_comm()
327 	err = filename__read_str(path, comm, &size);  in get_comm()
338 	free(path);  in get_comm()
342 static void comm_init(struct perf_thread_map *map, int i)  in comm_init()  argument
344 	pid_t pid = perf_thread_map__pid(map, i);  in comm_init()
348 	if (pid == -1) {  in comm_init()
349 		map->map[i].comm = strdup("dummy");  in comm_init()
354 	 * The comm name is like extra bonus ;-),  in comm_init()
360 	map->map[i].comm = comm;  in comm_init()
367 	for (i = 0; i < threads->nr; ++i)  in thread_map__read_comms()
376 	threads->nr = (int) event->nr;  in thread_map__copy_event()
378 	for (i = 0; i < event->nr; i++) {  in thread_map__copy_event()
379 		perf_thread_map__set_pid(threads, i, (pid_t) event->entries[i].pid);  in thread_map__copy_event()
380 		threads->map[i].comm = strndup(event->entries[i].comm, 16);  in thread_map__copy_event()
383 	refcount_set(&threads->refcnt, 1);  in thread_map__copy_event()
390 	threads = thread_map__alloc(event->nr);  in thread_map__new_event()
401 	for (i = 0; i < threads->nr; ++i) {  in thread_map__has()
402 		if (threads->map[i].pid == pid)  in thread_map__has()
413 	if (threads->nr < 1)  in thread_map__remove()
414 		return -EINVAL;  in thread_map__remove()
416 	if (idx >= threads->nr)  in thread_map__remove()
417 		return -EINVAL;  in thread_map__remove()
422 	zfree(&threads->map[idx].comm);  in thread_map__remove()
424 	for (i = idx; i < threads->nr - 1; i++)  in thread_map__remove()
425 		threads->map[i] = threads->map[i + 1];  in thread_map__remove()
427 	threads->nr--;  in thread_map__remove()