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