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