1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2 #include "test.h" 3 4 // Ensure that we can restore a stack of a finished thread. 5 6 int g_data; 7 8 void __attribute__((noinline)) foobar(int *p) { 9 *p = 42; 10 } 11 12 void *Thread1(void *x) { 13 foobar(&g_data); 14 barrier_wait(&barrier); 15 return NULL; 16 } 17 18 void *Thread2(void *x) { 19 barrier_wait(&barrier); 20 sleep(1); // let the thread finish and exit 21 g_data = 43; 22 return NULL; 23 } 24 25 int main() { 26 barrier_init(&barrier, 2); 27 pthread_t t[2]; 28 pthread_create(&t[0], NULL, Thread1, NULL); 29 pthread_create(&t[1], NULL, Thread2, NULL); 30 pthread_join(t[0], NULL); 31 pthread_join(t[1], NULL); 32 return 0; 33 } 34 35 // CHECK: WARNING: ThreadSanitizer: data race 36 // CHECK: Write of size 4 at {{.*}} by thread T2: 37 // CHECK: Previous write of size 4 at {{.*}} by thread T1: 38 // CHECK: #0 foobar 39 // CHECK: #1 Thread1 40 // CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at: 41 // CHECK: #0 pthread_create 42 // CHECK: #1 main 43
