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 <malloc.h>
17 #include <pthread.h>
18 #include <sys/wait.h>
19 #include "gwp_asan_test.h"
20 #include "test.h"
21
22 #define REPS 50
23 static int a = 0;
24
fork_task(void * arg)25 void* fork_task(void *arg)
26 {
27 pid_t pid = fork();
28 if (pid < 0) {
29 t_error("FAIL fork failed.");
30 } else if (pid == 0) { // child process
31 a++;
32 } else { // parent process
33 a++;
34 return NULL;
35 }
36 return NULL;
37 }
38
thread_fork_test()39 void thread_fork_test()
40 {
41 config_gwp_asan_environment(false);
42 for (int i = 0; i < REPS; i++) {
43 pthread_t tid;
44 pthread_create(&tid, NULL, fork_task, NULL);
45 pthread_join(tid, NULL);
46 }
47 }
48
49 // Test whether it's ok to open gwp_asan in the sub-thread fork scenario.
main()50 int main()
51 {
52 pid_t pid = fork();
53 if (pid < 0) {
54 t_error("FAIL fork failed.");
55 } else if (pid == 0) { // child process
56 thread_fork_test();
57 } else { // parent process
58 int status;
59 if (waitpid(pid, &status, 0) != pid) {
60 t_error("gwp_asan_thread_fork_test waitpid failed.");
61 }
62
63 if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
64 t_error("gwp_asan_thread_fork_test failed.");
65 }
66
67 cancel_gwp_asan_environment(false);
68 }
69
70 return t_status;
71 }