1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <errno.h>
17#include "stdarg.h"
18#include "stdbool.h"
19#include "pthread_impl.h"
20
21struct user_param {
22	unsigned long user_area;
23	unsigned long user_sp;
24	unsigned long map_base;
25	unsigned int map_size;
26};
27
28int __thread_clone(int (*func)(void *), int flags, struct pthread *thread, unsigned char *sp)
29{
30	int ret;
31	bool join_flag = false;
32	struct user_param param;
33
34	if (thread->detach_state == DT_JOINABLE) {
35		join_flag = true;
36	}
37
38	param.user_area = TP_ADJ(thread);
39	param.user_sp = sp;
40	param.map_base = thread->map_base;
41	param.map_size = thread->map_size;
42	ret = __syscall(SYS_create_user_thread, func, &param, join_flag);
43	if (ret < 0) {
44		return ret;
45	}
46
47	thread->tid = (unsigned long)ret;
48	return 0;
49}
50