1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2*bcaeed49SFangrui Song #include "test.h"
3*bcaeed49SFangrui Song
4*bcaeed49SFangrui Song #if defined(__linux__)
5*bcaeed49SFangrui Song #define USE_PTHREAD_SETNAME_NP __GLIBC_PREREQ(2, 12)
6*bcaeed49SFangrui Song #define tsan_pthread_setname_np pthread_setname_np
7*bcaeed49SFangrui Song #elif defined(__FreeBSD__)
8*bcaeed49SFangrui Song #include <pthread_np.h>
9*bcaeed49SFangrui Song #define USE_PTHREAD_SETNAME_NP 1
10*bcaeed49SFangrui Song #define tsan_pthread_setname_np pthread_set_name_np
11*bcaeed49SFangrui Song #elif defined(__NetBSD__)
12*bcaeed49SFangrui Song #define USE_PTHREAD_SETNAME_NP 1
13*bcaeed49SFangrui Song #define tsan_pthread_setname_np(a, b) pthread_setname_np((a), "%s", (void *)(b))
14*bcaeed49SFangrui Song #else
15*bcaeed49SFangrui Song #define USE_PTHREAD_SETNAME_NP 0
16*bcaeed49SFangrui Song #endif
17*bcaeed49SFangrui Song
18*bcaeed49SFangrui Song int Global;
19*bcaeed49SFangrui Song
Thread1(void * x)20*bcaeed49SFangrui Song void *Thread1(void *x) {
21*bcaeed49SFangrui Song barrier_wait(&barrier);
22*bcaeed49SFangrui Song AnnotateThreadName(__FILE__, __LINE__, "Thread1");
23*bcaeed49SFangrui Song Global++;
24*bcaeed49SFangrui Song return NULL;
25*bcaeed49SFangrui Song }
26*bcaeed49SFangrui Song
Thread2(void * x)27*bcaeed49SFangrui Song void *Thread2(void *x) {
28*bcaeed49SFangrui Song #if USE_PTHREAD_SETNAME_NP
29*bcaeed49SFangrui Song tsan_pthread_setname_np(pthread_self(), "Thread2");
30*bcaeed49SFangrui Song #else
31*bcaeed49SFangrui Song AnnotateThreadName(__FILE__, __LINE__, "Thread2");
32*bcaeed49SFangrui Song #endif
33*bcaeed49SFangrui Song Global--;
34*bcaeed49SFangrui Song barrier_wait(&barrier);
35*bcaeed49SFangrui Song return NULL;
36*bcaeed49SFangrui Song }
37*bcaeed49SFangrui Song
main()38*bcaeed49SFangrui Song int main() {
39*bcaeed49SFangrui Song barrier_init(&barrier, 2);
40*bcaeed49SFangrui Song pthread_t t[2];
41*bcaeed49SFangrui Song pthread_create(&t[0], NULL, Thread1, NULL);
42*bcaeed49SFangrui Song pthread_create(&t[1], NULL, Thread2, NULL);
43*bcaeed49SFangrui Song pthread_join(t[0], NULL);
44*bcaeed49SFangrui Song pthread_join(t[1], NULL);
45*bcaeed49SFangrui Song }
46*bcaeed49SFangrui Song
47*bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
48*bcaeed49SFangrui Song // CHECK: Thread T1 'Thread1'
49*bcaeed49SFangrui Song // CHECK: Thread T2 'Thread2'
50