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
49
|
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"
#if defined(__linux__)
#define USE_PTHREAD_SETNAME_NP __GLIBC_PREREQ(2, 12)
#define tsan_pthread_setname_np pthread_setname_np
#elif defined(__FreeBSD__)
#include <pthread_np.h>
#define USE_PTHREAD_SETNAME_NP 1
#define tsan_pthread_setname_np pthread_set_name_np
#elif defined(__NetBSD__)
#define USE_PTHREAD_SETNAME_NP 1
#define tsan_pthread_setname_np(a, b) pthread_setname_np((a), "%s", (void *)(b))
#else
#define USE_PTHREAD_SETNAME_NP 0
#endif
int Global;
void *Thread1(void *x) {
barrier_wait(&barrier);
AnnotateThreadName(__FILE__, __LINE__, "Thread1");
Global++;
return NULL;
}
void *Thread2(void *x) {
#if USE_PTHREAD_SETNAME_NP
tsan_pthread_setname_np(pthread_self(), "Thread2");
#else
AnnotateThreadName(__FILE__, __LINE__, "Thread2");
#endif
Global--;
barrier_wait(&barrier);
return NULL;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: Thread T1 'Thread1'
// CHECK: Thread T2 'Thread2'
|
