blob: a267290e661e8616396069f01f84d6d77a9333ae [file] [log] [blame]
// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
#include <pthread.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
// Ensure that we can restore a stack of a finished thread.
int g_data;
void __attribute__((noinline)) foobar(int *p) {
*p = 42;
}
void *Thread1(void *x) {
foobar(&g_data);
return NULL;
}
void *Thread2(void *x) {
sleep(1);
g_data = 43;
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
return 0;
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: Write of size 4 at {{.*}} by thread T2:
// CHECK: Previous write of size 4 at {{.*}} by thread T1:
// CHECK: #0 foobar
// CHECK: #1 Thread1
// CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at:
// CHECK: #0 pthread_create
// CHECK: #1 main