1 // Regression test for thread lifetime tracking. Thread data should be
2 // considered live during the thread's termination, at least until the
3 // user-installed TSD destructors have finished running (since they may contain
4 // additional cleanup tasks). LSan doesn't actually meet that goal 100%, but it
5 // makes its best effort.
6 // RUN: %clang_lsan %s -o %t
7 // RUN: %env_lsan_opts="report_objects=1:use_registers=0:use_stacks=0:use_tls=1" %run %t
8 // RUN: %env_lsan_opts="report_objects=1:use_registers=0:use_stacks=0:use_tls=0" not %run %t 2>&1 | FileCheck %s
9
10 // Investigate why it does not fail with use_stack=0
11 // UNSUPPORTED: arm-linux || armhf-linux
12
13 #include <assert.h>
14 #include <pthread.h>
15 #include <stdio.h>
16 #include <stdlib.h>
17
18 #include "sanitizer/lsan_interface.h"
19 #include "sanitizer_common/print_address.h"
20
21 pthread_key_t key;
22 __thread void *p;
23
key_destructor(void * arg)24 void key_destructor(void *arg) {
25 // Generally this may happen on a different thread.
26 __lsan_do_leak_check();
27 }
28
thread_func(void * arg)29 void *thread_func(void *arg) {
30 p = malloc(1337);
31 print_address("Test alloc: ", 1, p);
32 int res = pthread_setspecific(key, (void*)1);
33 assert(res == 0);
34 return 0;
35 }
36
main()37 int main() {
38 int res = pthread_key_create(&key, &key_destructor);
39 assert(res == 0);
40 pthread_t thread_id;
41 res = pthread_create(&thread_id, 0, thread_func, 0);
42 assert(res == 0);
43 res = pthread_join(thread_id, 0);
44 assert(res == 0);
45 return 0;
46 }
47 // CHECK: Test alloc: [[ADDR:0x[0-9,a-f]+]]
48 // CHECK: [[ADDR]] (1337 bytes)
49