1 // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2 #include <pthread.h> 3 #include <stdlib.h> 4 #include <stdio.h> 5 #include <unistd.h> 6 7 extern "C" { 8 void AnnotateIgnoreReadsBegin(const char *f, int l); 9 void AnnotateIgnoreReadsEnd(const char *f, int l); 10 void AnnotateIgnoreWritesBegin(const char *f, int l); 11 void AnnotateIgnoreWritesEnd(const char *f, int l); 12 } 13 14 void *Thread(void *p) { 15 *(int*)p = 42; 16 return 0; 17 } 18 19 int main() { 20 int *p = new int(0); 21 pthread_t t; 22 pthread_create(&t, 0, Thread, p); 23 sleep(1); 24 AnnotateIgnoreReadsBegin(__FILE__, __LINE__); 25 AnnotateIgnoreWritesBegin(__FILE__, __LINE__); 26 free(p); 27 AnnotateIgnoreReadsEnd(__FILE__, __LINE__); 28 AnnotateIgnoreWritesEnd(__FILE__, __LINE__); 29 pthread_join(t, 0); 30 fprintf(stderr, "OK\n"); 31 return 0; 32 } 33 34 // CHECK-NOT: WARNING: ThreadSanitizer: data race 35 // CHECK: OK 36
