1 // Regression test for a leak in tsd:
2 // https://code.google.com/p/address-sanitizer/issues/detail?id=233
3 // RUN: %clangxx_asan -O1 %s -pthread -o %t
4 // RUN: ASAN_OPTIONS=quarantine_size_mb=0 %run %t
5 #include <pthread.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include <assert.h>
9 #include <sanitizer/allocator_interface.h>
10
11 static pthread_key_t tsd_key;
12
Thread(void *)13 void *Thread(void *) {
14 pthread_setspecific(tsd_key, malloc(10));
15 return 0;
16 }
17
18 static volatile void *v;
19
Dtor(void * tsd)20 void Dtor(void *tsd) {
21 v = malloc(10000);
22 free(tsd);
23 free((void*)v); // The bug was that this was leaking.
24 }
25
main()26 int main() {
27 assert(0 == pthread_key_create(&tsd_key, Dtor));
28 pthread_t t;
29 for (int i = 0; i < 3; i++) {
30 pthread_create(&t, 0, Thread, 0);
31 pthread_join(t, 0);
32 }
33 size_t old_heap_size = __sanitizer_get_heap_size();
34 for (int i = 0; i < 10; i++) {
35 pthread_create(&t, 0, Thread, 0);
36 pthread_join(t, 0);
37 size_t new_heap_size = __sanitizer_get_heap_size();
38 fprintf(stderr, "heap size: new: %zd old: %zd\n", new_heap_size, old_heap_size);
39 assert(old_heap_size == new_heap_size);
40 }
41 }
42