1 // Test that TLS is unpoisoned on thread death.
2 // REQUIRES: x86-target-arch
3
4 // RUN: %clangxx_asan -O1 %s -pthread -o %t && %run %t 2>&1
5
6 #include <assert.h>
7 #include <pthread.h>
8 #include <stdio.h>
9
10 #include <sanitizer/asan_interface.h>
11
12 __thread int64_t tls_var[2];
13
14 volatile int64_t *p_tls_var;
15
first(void * arg)16 void *first(void *arg) {
17 ASAN_POISON_MEMORY_REGION(&tls_var, sizeof(tls_var));
18 p_tls_var = tls_var;
19 return 0;
20 }
21
second(void * arg)22 void *second(void *arg) {
23 assert(tls_var == p_tls_var);
24 *p_tls_var = 1;
25 return 0;
26 }
27
main(int argc,char * argv[])28 int main(int argc, char *argv[]) {
29 pthread_t p;
30 assert(0 == pthread_create(&p, 0, first, 0));
31 assert(0 == pthread_join(p, 0));
32 assert(0 == pthread_create(&p, 0, second, 0));
33 assert(0 == pthread_join(p, 0));
34 return 0;
35 }
36