1 // RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s 2 #include <pthread.h> 3 #include <stddef.h> 4 #include <stdio.h> 5 #include <string.h> 6 #include <unistd.h> 7 8 // Ensure that we can restore a stack of a finished thread. 9 10 int g_data; 11 12 void __attribute__((noinline)) foobar(int *p) { 13 *p = 42; 14 } 15 16 void *Thread1(void *x) { 17 foobar(&g_data); 18 return NULL; 19 } 20 21 void *Thread2(void *x) { 22 sleep(1); 23 g_data = 43; 24 return NULL; 25 } 26 27 int main() { 28 pthread_t t[2]; 29 pthread_create(&t[0], NULL, Thread1, NULL); 30 pthread_create(&t[1], NULL, Thread2, NULL); 31 pthread_join(t[0], NULL); 32 pthread_join(t[1], NULL); 33 return 0; 34 } 35 36 // CHECK: WARNING: ThreadSanitizer: data race 37 // CHECK: Write of size 4 at {{.*}} by thread T2: 38 // CHECK: Previous write of size 4 at {{.*}} by thread T1: 39 // CHECK: #0 foobar 40 // CHECK: #1 Thread1 41 // CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at: 42 // CHECK: #0 pthread_create 43 // CHECK: #1 main 44
