1 | // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
2 | #include <pthread.h> |
3 | #include <stdlib.h> |
4 | #include <stdio.h> |
5 | #include "test.h" |
6 | |
7 | void *Thread1(void *p) { |
8 | *(int*)p = 42; |
9 | return 0; |
10 | } |
11 | |
12 | void *Thread2(void *p) { |
13 | *(int*)p = 44; |
14 | return 0; |
15 | } |
16 | |
17 | __attribute__((noinline)) void *alloc() { |
18 | return malloc(size: 99); |
19 | } |
20 | |
21 | void *AllocThread(void* arg) { |
22 | return alloc(); |
23 | } |
24 | |
25 | int main() { |
26 | void *p = 0; |
27 | pthread_t t[2]; |
28 | pthread_create(newthread: &t[0], attr: 0, start_routine: AllocThread, arg: 0); |
29 | pthread_join(th: t[0], thread_return: &p); |
30 | print_address("addr=" , 1, p); |
31 | pthread_create(newthread: &t[0], attr: 0, start_routine: Thread1, arg: (char*)p + 16); |
32 | pthread_create(newthread: &t[1], attr: 0, start_routine: Thread2, arg: (char*)p + 16); |
33 | pthread_join(th: t[0], thread_return: 0); |
34 | pthread_join(th: t[1], thread_return: 0); |
35 | return 0; |
36 | } |
37 | |
38 | // CHECK: addr=[[ADDR:0x[0-9,a-f]+]] |
39 | // CHECK: WARNING: ThreadSanitizer: data race |
40 | // ... |
41 | // CHECK: Location is heap block of size 99 at [[ADDR]] allocated by thread T1: |
42 | // CHECK: #0 malloc |
43 | // CHECK: #{{1|2}} alloc |
44 | // CHECK: #{{2|3}} AllocThread |
45 | // ... |
46 | // CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at: |
47 | // CHECK: #0 pthread_create |
48 | // CHECK: #1 main |
49 | |