1 #include <pthread.h> 2 #include <stddef.h> 3 #include <stdio.h> 4 #include <string.h> 5 #include <unistd.h> 6 7 // Ensure that we can restore a stack of a finished thread. 8 9 int g_data; 10 foobar(int * p)11void __attribute__((noinline)) foobar(int *p) { 12 *p = 42; 13 } 14 Thread1(void * x)15void *Thread1(void *x) { 16 foobar(&g_data); 17 return NULL; 18 } 19 Thread2(void * x)20void *Thread2(void *x) { 21 usleep(1000*1000); 22 g_data = 43; 23 return NULL; 24 } 25 main()26int main() { 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 2: 37 // CHECK: Previous write of size 4 at {{.*}} by thread 1: 38 // CHECK: #0 foobar 39 // CHECK: #1 Thread1 40 // CHECK: Thread 1 (finished) created at: 41 // CHECK: #0 pthread_create 42 // CHECK: #1 main 43 44