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
21 struct user_param {
22 unsigned long user_area;
23 unsigned long user_sp;
24 unsigned long map_base;
25 unsigned int map_size;
26 };
27
__thread_clone(int (* func)(void *),int flags,struct pthread * thread,unsigned char * sp)28 int __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, ¶m, join_flag);
43 if (ret < 0) {
44 return ret;
45 }
46
47 thread->tid = (unsigned long)ret;
48 return 0;
49 }
50