| // 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' |