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
21pthread_key_t key;
22__thread void *p;
23
24void key_destructor(void *arg) {
25 // Generally this may happen on a different thread.
26 __lsan_do_leak_check();
27}
28
29void *thread_func(void *arg) {
30 p = malloc(size: 1337);
31 print_address("Test alloc: ", 1, p);
32 int res = pthread_setspecific(key: key, pointer: (void*)1);
33 assert(res == 0);
34 return 0;
35}
36
37int main() {
38 int res = pthread_key_create(key: &key, destr_function: &key_destructor);
39 assert(res == 0);
40 pthread_t thread_id;
41 res = pthread_create(newthread: &thread_id, attr: 0, start_routine: thread_func, arg: 0);
42 assert(res == 0);
43 res = pthread_join(th: thread_id, thread_return: 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

source code of compiler-rt/test/lsan/TestCases/Linux/cleanup_in_tsd_destructor.c