19 int thread__init_map_groups(struct thread *thread, struct machine *machine)  in thread__init_map_groups()  argument
21 	pid_t pid = thread->pid_;  in thread__init_map_groups()
23 	if (pid == thread->tid || pid == -1) {  in thread__init_map_groups()
24 		thread->mg = map_groups__new(machine);  in thread__init_map_groups()
26 		struct thread *leader = __machine__findnew_thread(machine, pid, pid);  in thread__init_map_groups()
28 			thread->mg = map_groups__get(leader->mg);  in thread__init_map_groups()
33 	return thread->mg ? 0 : -1;  in thread__init_map_groups()
36 struct thread *thread__new(pid_t pid, pid_t tid)  in thread__new()
40 	struct thread *thread = zalloc(sizeof(*thread));  in thread__new()  local
42 	if (thread != NULL) {  in thread__new()
43 		thread->pid_ = pid;  in thread__new()
44 		thread->tid = tid;  in thread__new()
45 		thread->ppid = -1;  in thread__new()
46 		thread->cpu = -1;  in thread__new()
47 		INIT_LIST_HEAD(&thread->namespaces_list);  in thread__new()
48 		INIT_LIST_HEAD(&thread->comm_list);  in thread__new()
49 		init_rwsem(&thread->namespaces_lock);  in thread__new()
50 		init_rwsem(&thread->comm_lock);  in thread__new()
62 		list_add(&comm->list, &thread->comm_list);  in thread__new()
63 		refcount_set(&thread->refcnt, 1);  in thread__new()
64 		RB_CLEAR_NODE(&thread->rb_node);  in thread__new()
66 		thread->nsinfo = nsinfo__new(pid);  in thread__new()
69 	return thread;  in thread__new()
72 	free(thread);  in thread__new()
76 void thread__delete(struct thread *thread)  in thread__delete()  argument
81 	BUG_ON(!RB_EMPTY_NODE(&thread->rb_node));  in thread__delete()
83 	thread_stack__free(thread);  in thread__delete()
85 	if (thread->mg) {  in thread__delete()
86 		map_groups__put(thread->mg);  in thread__delete()
87 		thread->mg = NULL;  in thread__delete()
89 	down_write(&thread->namespaces_lock);  in thread__delete()
91 				 &thread->namespaces_list, list) {  in thread__delete()
95 	up_write(&thread->namespaces_lock);  in thread__delete()
97 	down_write(&thread->comm_lock);  in thread__delete()
98 	list_for_each_entry_safe(comm, tmp_comm, &thread->comm_list, list) {  in thread__delete()
102 	up_write(&thread->comm_lock);  in thread__delete()
104 	unwind__finish_access(thread);  in thread__delete()
105 	nsinfo__zput(thread->nsinfo);  in thread__delete()
107 	exit_rwsem(&thread->namespaces_lock);  in thread__delete()
108 	exit_rwsem(&thread->comm_lock);  in thread__delete()
109 	free(thread);  in thread__delete()
112 struct thread *thread__get(struct thread *thread)  in thread__get()  argument
114 	if (thread)  in thread__get()
115 		refcount_inc(&thread->refcnt);  in thread__get()
116 	return thread;  in thread__get()
119 void thread__put(struct thread *thread)  in thread__put()  argument
121 	if (thread && refcount_dec_and_test(&thread->refcnt)) {  in thread__put()
126 		list_del_init(&thread->node);  in thread__put()
127 		thread__delete(thread);  in thread__put()
131 struct namespaces *thread__namespaces(const struct thread *thread)  in thread__namespaces()  argument
133 	if (list_empty(&thread->namespaces_list))  in thread__namespaces()
136 	return list_first_entry(&thread->namespaces_list, struct namespaces, list);  in thread__namespaces()
139 static int __thread__set_namespaces(struct thread *thread, u64 timestamp,  in __thread__set_namespaces()  argument
142 	struct namespaces *new, *curr = thread__namespaces(thread);  in __thread__set_namespaces()
148 	list_add(&new->list, &thread->namespaces_list);  in __thread__set_namespaces()
163 int thread__set_namespaces(struct thread *thread, u64 timestamp,  in thread__set_namespaces()  argument
168 	down_write(&thread->namespaces_lock);  in thread__set_namespaces()
169 	ret = __thread__set_namespaces(thread, timestamp, event);  in thread__set_namespaces()
170 	up_write(&thread->namespaces_lock);  in thread__set_namespaces()
174 struct comm *thread__comm(const struct thread *thread)  in thread__comm()  argument
176 	if (list_empty(&thread->comm_list))  in thread__comm()
179 	return list_first_entry(&thread->comm_list, struct comm, list);  in thread__comm()
182 struct comm *thread__exec_comm(const struct thread *thread)  in thread__exec_comm()  argument
186 	list_for_each_entry(comm, &thread->comm_list, list) {  in thread__exec_comm()
195 static int ____thread__set_comm(struct thread *thread, const char *str,  in ____thread__set_comm()  argument
198 	struct comm *new, *curr = thread__comm(thread);  in ____thread__set_comm()
201 	if (!thread->comm_set) {  in ____thread__set_comm()
209 		list_add(&new->list, &thread->comm_list);  in ____thread__set_comm()
212 			unwind__flush_access(thread);  in ____thread__set_comm()
215 	thread->comm_set = true;  in ____thread__set_comm()
220 int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp,  in __thread__set_comm()  argument
225 	down_write(&thread->comm_lock);  in __thread__set_comm()
226 	ret = ____thread__set_comm(thread, str, timestamp, exec);  in __thread__set_comm()
227 	up_write(&thread->comm_lock);  in __thread__set_comm()
231 int thread__set_comm_from_proc(struct thread *thread)  in thread__set_comm_from_proc()  argument
239 		       thread->pid_, thread->tid) >= (int)sizeof(path)) &&  in thread__set_comm_from_proc()
242 		err = thread__set_comm(thread, comm, 0);  in thread__set_comm_from_proc()
248 static const char *__thread__comm_str(const struct thread *thread)  in __thread__comm_str()  argument
250 	const struct comm *comm = thread__comm(thread);  in __thread__comm_str()
258 const char *thread__comm_str(const struct thread *thread)  in thread__comm_str()  argument
262 	down_read((struct rw_semaphore *)&thread->comm_lock);  in thread__comm_str()
263 	str = __thread__comm_str(thread);  in thread__comm_str()
264 	up_read((struct rw_semaphore *)&thread->comm_lock);  in thread__comm_str()
270 int thread__comm_len(struct thread *thread)  in thread__comm_len()  argument
272 	if (!thread->comm_len) {  in thread__comm_len()
273 		const char *comm = thread__comm_str(thread);  in thread__comm_len()
276 		thread->comm_len = strlen(comm);  in thread__comm_len()
279 	return thread->comm_len;  in thread__comm_len()
282 size_t thread__fprintf(struct thread *thread, FILE *fp)  in thread__fprintf()  argument
284 	return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +  in thread__fprintf()
285 	       map_groups__fprintf(thread->mg, fp);  in thread__fprintf()
288 int thread__insert_map(struct thread *thread, struct map *map)  in thread__insert_map()  argument
292 	ret = unwind__prepare_access(thread, map, NULL);  in thread__insert_map()
296 	map_groups__fixup_overlappings(thread->mg, map, stderr);  in thread__insert_map()
297 	map_groups__insert(thread->mg, map);  in thread__insert_map()
302 static int __thread__prepare_access(struct thread *thread)  in __thread__prepare_access()  argument
306 	struct maps *maps = &thread->mg->maps;  in __thread__prepare_access()
312 		err = unwind__prepare_access(thread, map, &initialized);  in __thread__prepare_access()
322 static int thread__prepare_access(struct thread *thread)  in thread__prepare_access()  argument
327 		err = __thread__prepare_access(thread);  in thread__prepare_access()
332 static int thread__clone_map_groups(struct thread *thread,  in thread__clone_map_groups()  argument
333 				    struct thread *parent)  in thread__clone_map_groups()
336 	if (thread->pid_ == parent->pid_)  in thread__clone_map_groups()
337 		return thread__prepare_access(thread);  in thread__clone_map_groups()
339 	if (thread->mg == parent->mg) {  in thread__clone_map_groups()
341 			 thread->pid_, thread->tid, parent->pid_, parent->tid);  in thread__clone_map_groups()
346 	if (map_groups__clone(thread, parent->mg) < 0)  in thread__clone_map_groups()
352 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp)  in thread__fork()  argument
359 		err = thread__set_comm(thread, comm, timestamp);  in thread__fork()
364 	thread->ppid = parent->tid;  in thread__fork()
365 	return thread__clone_map_groups(thread, parent);  in thread__fork()
368 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,  in thread__find_cpumode_addr_location()  argument
380 		thread__find_symbol(thread, cpumodes[i], addr, al);  in thread__find_cpumode_addr_location()
386 struct thread *thread__main_thread(struct machine *machine, struct thread *thread)  in thread__main_thread()  argument
388 	if (thread->pid_ == thread->tid)  in thread__main_thread()
389 		return thread__get(thread);  in thread__main_thread()
391 	if (thread->pid_ == -1)  in thread__main_thread()
394 	return machine__find_thread(machine, thread->pid_, thread->pid_);  in thread__main_thread()