22 int thread__init_maps(struct thread *thread, struct machine *machine)  in thread__init_maps()  argument
24 	pid_t pid = thread->pid_;  in thread__init_maps()
26 	if (pid == thread->tid || pid == -1) {  in thread__init_maps()
27 		thread->maps = maps__new(machine);  in thread__init_maps()
29 		struct thread *leader = __machine__findnew_thread(machine, pid, pid);  in thread__init_maps()
31 			thread->maps = maps__get(leader->maps);  in thread__init_maps()
36 	return thread->maps ? 0 : -1;  in thread__init_maps()
39 struct thread *thread__new(pid_t pid, pid_t tid)  in thread__new()
43 	struct thread *thread = zalloc(sizeof(*thread));  in thread__new()  local
45 	if (thread != NULL) {  in thread__new()
46 		thread->pid_ = pid;  in thread__new()
47 		thread->tid = tid;  in thread__new()
48 		thread->ppid = -1;  in thread__new()
49 		thread->cpu = -1;  in thread__new()
50 		thread->guest_cpu = -1;  in thread__new()
51 		thread->lbr_stitch_enable = false;  in thread__new()
52 		INIT_LIST_HEAD(&thread->namespaces_list);  in thread__new()
53 		INIT_LIST_HEAD(&thread->comm_list);  in thread__new()
54 		init_rwsem(&thread->namespaces_lock);  in thread__new()
55 		init_rwsem(&thread->comm_lock);  in thread__new()
67 		list_add(&comm->list, &thread->comm_list);  in thread__new()
68 		refcount_set(&thread->refcnt, 1);  in thread__new()
69 		RB_CLEAR_NODE(&thread->rb_node);  in thread__new()
71 		thread->nsinfo = nsinfo__new(pid);  in thread__new()
72 		srccode_state_init(&thread->srccode_state);  in thread__new()
75 	return thread;  in thread__new()
78 	free(thread);  in thread__new()
82 void thread__delete(struct thread *thread)  in thread__delete()  argument
87 	BUG_ON(!RB_EMPTY_NODE(&thread->rb_node));  in thread__delete()
89 	thread_stack__free(thread);  in thread__delete()
91 	if (thread->maps) {  in thread__delete()
92 		maps__put(thread->maps);  in thread__delete()
93 		thread->maps = NULL;  in thread__delete()
95 	down_write(&thread->namespaces_lock);  in thread__delete()
97 				 &thread->namespaces_list, list) {  in thread__delete()
101 	up_write(&thread->namespaces_lock);  in thread__delete()
103 	down_write(&thread->comm_lock);  in thread__delete()
104 	list_for_each_entry_safe(comm, tmp_comm, &thread->comm_list, list) {  in thread__delete()
108 	up_write(&thread->comm_lock);  in thread__delete()
110 	nsinfo__zput(thread->nsinfo);  in thread__delete()
111 	srccode_state_free(&thread->srccode_state);  in thread__delete()
113 	exit_rwsem(&thread->namespaces_lock);  in thread__delete()
114 	exit_rwsem(&thread->comm_lock);  in thread__delete()
115 	thread__free_stitch_list(thread);  in thread__delete()
116 	free(thread);  in thread__delete()
119 struct thread *thread__get(struct thread *thread)  in thread__get()  argument
121 	if (thread)  in thread__get()
122 		refcount_inc(&thread->refcnt);  in thread__get()
123 	return thread;  in thread__get()
126 void thread__put(struct thread *thread)  in thread__put()  argument
128 	if (thread && refcount_dec_and_test(&thread->refcnt)) {  in thread__put()
149 		if (!list_empty(&thread->node))  in thread__put()
150 			list_del_init(&thread->node);  in thread__put()
151 		thread__delete(thread);  in thread__put()
155 static struct namespaces *__thread__namespaces(const struct thread *thread)  in __thread__namespaces()  argument
157 	if (list_empty(&thread->namespaces_list))  in __thread__namespaces()
160 	return list_first_entry(&thread->namespaces_list, struct namespaces, list);  in __thread__namespaces()
163 struct namespaces *thread__namespaces(struct thread *thread)  in thread__namespaces()  argument
167 	down_read(&thread->namespaces_lock);  in thread__namespaces()
168 	ns = __thread__namespaces(thread);  in thread__namespaces()
169 	up_read(&thread->namespaces_lock);  in thread__namespaces()
174 static int __thread__set_namespaces(struct thread *thread, u64 timestamp,  in __thread__set_namespaces()  argument
177 	struct namespaces *new, *curr = __thread__namespaces(thread);  in __thread__set_namespaces()
183 	list_add(&new->list, &thread->namespaces_list);  in __thread__set_namespaces()
198 int thread__set_namespaces(struct thread *thread, u64 timestamp,  in thread__set_namespaces()  argument
203 	down_write(&thread->namespaces_lock);  in thread__set_namespaces()
204 	ret = __thread__set_namespaces(thread, timestamp, event);  in thread__set_namespaces()
205 	up_write(&thread->namespaces_lock);  in thread__set_namespaces()
209 struct comm *thread__comm(const struct thread *thread)  in thread__comm()  argument
211 	if (list_empty(&thread->comm_list))  in thread__comm()
214 	return list_first_entry(&thread->comm_list, struct comm, list);  in thread__comm()
217 struct comm *thread__exec_comm(const struct thread *thread)  in thread__exec_comm()  argument
221 	list_for_each_entry(comm, &thread->comm_list, list) {  in thread__exec_comm()
234 	if (second_last && !last->start && thread->pid_ == thread->tid)  in thread__exec_comm()
240 static int ____thread__set_comm(struct thread *thread, const char *str,  in ____thread__set_comm()  argument
243 	struct comm *new, *curr = thread__comm(thread);  in ____thread__set_comm()
246 	if (!thread->comm_set) {  in ____thread__set_comm()
254 		list_add(&new->list, &thread->comm_list);  in ____thread__set_comm()
257 			unwind__flush_access(thread->maps);  in ____thread__set_comm()
260 	thread->comm_set = true;  in ____thread__set_comm()
265 int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp,  in __thread__set_comm()  argument
270 	down_write(&thread->comm_lock);  in __thread__set_comm()
271 	ret = ____thread__set_comm(thread, str, timestamp, exec);  in __thread__set_comm()
272 	up_write(&thread->comm_lock);  in __thread__set_comm()
276 int thread__set_comm_from_proc(struct thread *thread)  in thread__set_comm_from_proc()  argument
284 		       thread->pid_, thread->tid) >= (int)sizeof(path)) &&  in thread__set_comm_from_proc()
287 		err = thread__set_comm(thread, comm, 0);  in thread__set_comm_from_proc()
293 static const char *__thread__comm_str(const struct thread *thread)  in __thread__comm_str()  argument
295 	const struct comm *comm = thread__comm(thread);  in __thread__comm_str()
303 const char *thread__comm_str(struct thread *thread)  in thread__comm_str()  argument
307 	down_read(&thread->comm_lock);  in thread__comm_str()
308 	str = __thread__comm_str(thread);  in thread__comm_str()
309 	up_read(&thread->comm_lock);  in thread__comm_str()
315 int thread__comm_len(struct thread *thread)  in thread__comm_len()  argument
317 	if (!thread->comm_len) {  in thread__comm_len()
318 		const char *comm = thread__comm_str(thread);  in thread__comm_len()
321 		thread->comm_len = strlen(comm);  in thread__comm_len()
324 	return thread->comm_len;  in thread__comm_len()
327 size_t thread__fprintf(struct thread *thread, FILE *fp)  in thread__fprintf()  argument
329 	return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +  in thread__fprintf()
330 	       maps__fprintf(thread->maps, fp);  in thread__fprintf()
333 int thread__insert_map(struct thread *thread, struct map *map)  in thread__insert_map()  argument
337 	ret = unwind__prepare_access(thread->maps, map, NULL);  in thread__insert_map()
341 	maps__fixup_overlappings(thread->maps, map, stderr);  in thread__insert_map()
342 	maps__insert(thread->maps, map);  in thread__insert_map()
347 static int __thread__prepare_access(struct thread *thread)  in __thread__prepare_access()  argument
351 	struct maps *maps = thread->maps;  in __thread__prepare_access()
357 		err = unwind__prepare_access(thread->maps, map, &initialized);  in __thread__prepare_access()
367 static int thread__prepare_access(struct thread *thread)  in thread__prepare_access()  argument
372 		err = __thread__prepare_access(thread);  in thread__prepare_access()
377 static int thread__clone_maps(struct thread *thread, struct thread *parent, bool do_maps_clone)  in thread__clone_maps()  argument
380 	if (thread->pid_ == parent->pid_)  in thread__clone_maps()
381 		return thread__prepare_access(thread);  in thread__clone_maps()
383 	if (thread->maps == parent->maps) {  in thread__clone_maps()
385 			 thread->pid_, thread->tid, parent->pid_, parent->tid);  in thread__clone_maps()
389 	return do_maps_clone ? maps__clone(thread, parent->maps) : 0;  in thread__clone_maps()
392 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp, bool do_maps_clone)  in thread__fork()  argument
399 		err = thread__set_comm(thread, comm, timestamp);  in thread__fork()
404 	thread->ppid = parent->tid;  in thread__fork()
405 	return thread__clone_maps(thread, parent, do_maps_clone);  in thread__fork()
408 void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,  in thread__find_cpumode_addr_location()  argument
420 		thread__find_symbol(thread, cpumodes[i], addr, al);  in thread__find_cpumode_addr_location()
426 struct thread *thread__main_thread(struct machine *machine, struct thread *thread)  in thread__main_thread()  argument
428 	if (thread->pid_ == thread->tid)  in thread__main_thread()
429 		return thread__get(thread);  in thread__main_thread()
431 	if (thread->pid_ == -1)  in thread__main_thread()
434 	return machine__find_thread(machine, thread->pid_, thread->pid_);  in thread__main_thread()
437 int thread__memcpy(struct thread *thread, struct machine *machine,  in thread__memcpy()  argument
447        if (!thread__find_map(thread, cpumode, ip, &al) || !al.map->dso ||  in thread__memcpy()
459 void thread__free_stitch_list(struct thread *thread)  in thread__free_stitch_list()  argument
461 	struct lbr_stitch *lbr_stitch = thread->lbr_stitch;  in thread__free_stitch_list()
478 	zfree(&thread->lbr_stitch);  in thread__free_stitch_list()