214e64135e
* build libtest_atexit.so * remove atexit(NULL) - glibc segfaults on it Bug: 15350494 Change-Id: I27d79130c32c5691b0e8790a57d92f9710f5bf4a
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <dlfcn.h>
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#include <libgen.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string>
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TEST(atexit, dlclose) {
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std::string atexit_call_sequence;
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bool valid_this_in_static_dtor = false;
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void* handle = dlopen("libtest_atexit.so", RTLD_NOW);
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ASSERT_TRUE(handle != NULL);
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void* sym = dlsym(handle, "register_atexit");
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ASSERT_TRUE(sym != NULL);
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reinterpret_cast<void (*)(std::string*, bool*)>(sym)(&atexit_call_sequence, &valid_this_in_static_dtor);
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ASSERT_EQ(0, dlclose(handle));
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// this test verifies atexit call from atexit handler. as well as the order of calls
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ASSERT_EQ("Humpty Dumpty sat on a wall", atexit_call_sequence);
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ASSERT_TRUE(valid_this_in_static_dtor);
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}
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class TestMainStaticDtorClass {
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public:
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TestMainStaticDtorClass() {
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expected_this = this;
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}
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~TestMainStaticDtorClass() {
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if (this != expected_this) {
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fprintf(stderr, "\nerror: static d-tor called with incorrect this pointer: %p, expected: %p\n", this, expected_this);
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} else {
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fprintf(stderr, "6");
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}
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}
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private:
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static const TestMainStaticDtorClass* expected_this;
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};
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const TestMainStaticDtorClass* TestMainStaticDtorClass::expected_this = NULL;
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static void atexit_func5() {
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fprintf(stderr, "5");
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}
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static void atexit_func4() {
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fprintf(stderr, "4");
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}
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static void atexit_func3() {
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fprintf(stderr, "3");
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atexit(atexit_func4);
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}
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static void atexit_func2() {
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fprintf(stderr, "2");
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}
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static void atexit_func1() {
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fprintf(stderr, "1");
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}
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static void atexit_main() {
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// This should result in "123456" output to stderr
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static TestMainStaticDtorClass static_obj;
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atexit(atexit_func5);
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atexit(atexit_func3);
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atexit(atexit_func2);
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atexit(atexit_func1);
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exit(0);
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}
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TEST(atexit, exit) {
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ASSERT_EXIT(atexit_main(), testing::ExitedWithCode(0), "123456");
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}
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