1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2 #include <pthread.h> 3 #include <stdlib.h> 4 #include <stdio.h> 5 6 void *Thread1(void *p) { 7 *(int*)p = 42; 8 return 0; 9 } 10 11 void *Thread2(void *p) { 12 *(int*)p = 44; 13 return 0; 14 } 15 16 void *alloc() { 17 return malloc(99); 18 } 19 20 void *AllocThread(void* arg) { 21 return alloc(); 22 } 23 24 int main() { 25 void *p = 0; 26 pthread_t t[2]; 27 pthread_create(&t[0], 0, AllocThread, 0); 28 pthread_join(t[0], &p); 29 fprintf(stderr, "addr=%p\n", p); 30 pthread_create(&t[0], 0, Thread1, (char*)p + 16); 31 pthread_create(&t[1], 0, Thread2, (char*)p + 16); 32 pthread_join(t[0], 0); 33 pthread_join(t[1], 0); 34 return 0; 35 } 36 37 // CHECK: addr=[[ADDR:0x[0-9,a-f]+]] 38 // CHECK: WARNING: ThreadSanitizer: data race 39 // ... 40 // CHECK: Location is heap block of size 99 at [[ADDR]] allocated by thread T1: 41 // CHCEK: #0 malloc 42 // CHECK: #{{1|2}} alloc 43 // CHECK: #{{2|3}} AllocThread 44 // ... 45 // CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at: 46 // CHECK: #0 pthread_create 47 // CHECK: #1 main 48
