// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s #include #include #include int Global; int WTFGlobal; extern "C" { void AnnotateBenignRaceSized(const char *f, int l, void *mem, unsigned int size, const char *desc); void WTFAnnotateBenignRaceSized(const char *f, int l, void *mem, unsigned int size, const char *desc); } void *Thread(void *x) { Global = 42; WTFGlobal = 142; return 0; } int main() { AnnotateBenignRaceSized(__FILE__, __LINE__, &Global, sizeof(Global), "Race on Global"); WTFAnnotateBenignRaceSized(__FILE__, __LINE__, &WTFGlobal, sizeof(WTFGlobal), "Race on WTFGlobal"); pthread_t t; pthread_create(&t, 0, Thread, 0); sleep(1); Global = 43; WTFGlobal = 143; pthread_join(t, 0); printf("OK\n"); } // CHECK-NOT: WARNING: ThreadSanitizer: data race