1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
| #include <pthread.h>
| #include <stdlib.h>
| #include <stdio.h>
| #include "test.h"
|
| void *Thread1(void *p) {
| *(int*)p = 42;
| return 0;
| }
|
| void *Thread2(void *p) {
| *(int*)p = 44;
| return 0;
| }
|
| void *alloc() {
| return malloc(99);
| }
|
| void *AllocThread(void* arg) {
| return alloc();
| }
|
| int main() {
| void *p = 0;
| pthread_t t[2];
| pthread_create(&t[0], 0, AllocThread, 0);
| pthread_join(t[0], &p);
| print_address("addr=", 1, p);
| pthread_create(&t[0], 0, Thread1, (char*)p + 16);
| pthread_create(&t[1], 0, Thread2, (char*)p + 16);
| pthread_join(t[0], 0);
| pthread_join(t[1], 0);
| return 0;
| }
|
| // CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
| // CHECK: WARNING: ThreadSanitizer: data race
| // ...
| // CHECK: Location is heap block of size 99 at [[ADDR]] allocated by thread T1:
| // CHCEK: #0 malloc
| // CHECK: #{{1|2}} alloc
| // CHECK: #{{2|3}} AllocThread
| // ...
| // CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at:
| // CHECK: #0 pthread_create
| // CHECK: #1 main
|
|
