1 //===-- Tests for pthread_exit --------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/pthread/pthread_create.h"
10 #include "src/pthread/pthread_exit.h"
11 #include "src/pthread/pthread_join.h"
12 #include "test/IntegrationTest/test.h"
13
14 #include <pthread.h>
15
16 bool dtor_called = false;
17
18 class A {
19 int val;
20
21 public:
A(int i)22 A(int i) { val = i; }
23
set(int i)24 void set(int i) { val = i; }
25
~A()26 ~A() {
27 val = 0;
28 dtor_called = true;
29 }
30 };
31
32 thread_local A thread_local_a(123);
33
func(void *)34 void *func(void *) {
35 // Touch the thread local variable so that it gets initialized and a callback
36 // for its destructor gets registered with __cxa_thread_atexit.
37 thread_local_a.set(321);
38 LIBC_NAMESPACE::pthread_exit(nullptr);
39 return nullptr;
40 }
41
TEST_MAIN()42 TEST_MAIN() {
43 pthread_t th;
44 void *retval;
45
46 ASSERT_EQ(LIBC_NAMESPACE::pthread_create(&th, nullptr, func, nullptr), 0);
47 ASSERT_EQ(LIBC_NAMESPACE::pthread_join(th, &retval), 0);
48
49 ASSERT_TRUE(dtor_called);
50 LIBC_NAMESPACE::pthread_exit(nullptr);
51 return 0;
52 }
53
54 extern "C" {
55
56 using Destructor = void(void *);
57
58 int __cxa_thread_atexit_impl(Destructor *, void *, void *);
59
60 // We do not link integration tests to C++ runtime pieces like the libcxxabi.
61 // So, we provide our own simple __cxa_thread_atexit implementation.
__cxa_thread_atexit(Destructor * dtor,void * obj,void *)62 int __cxa_thread_atexit(Destructor *dtor, void *obj, void *) {
63 return __cxa_thread_atexit_impl(dtor, obj, nullptr);
64 }
65 }
66