842423911f
Used by CFI, so broke cfi_test#early_init@x86, but I've added a specific
test for this (and a similar test for getauxval from preinit, which this
patch does not fix).
Bug: http://b/35885875
Test: ran tests
(cherry picked from commit eb04ed506f)
Change-Id: Ie9da1bf4c2dcc23be7d75c739ae8549309813f88
112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
/*
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* Copyright (C) 2012 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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#include "gtest_globals.h"
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#include "utils.h"
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extern "C" int main_global_default_serial() {
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return 3370318;
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}
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extern "C" int main_global_protected_serial() {
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return 2716057;
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}
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// The following functions are defined in DT_NEEDED
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// libdl_preempt_test.so library.
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// This one calls main_global_default_serial
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extern "C" int main_global_default_get_serial();
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// This one calls main_global_protected_serial
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extern "C" int main_global_protected_get_serial();
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// This one calls lib_global_default_serial
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extern "C" int lib_global_default_get_serial();
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// This one calls lib_global_protected_serial
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extern "C" int lib_global_protected_get_serial();
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// This test verifies that the global default function
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// main_global_default_serial() is preempted by
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// the function defined above.
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TEST(dl, main_preempts_global_default) {
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ASSERT_EQ(3370318, main_global_default_get_serial());
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}
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// This one makes sure that the global protected
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// symbols do not get preempted
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TEST(dl, main_does_not_preempt_global_protected) {
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ASSERT_EQ(3370318, main_global_protected_get_serial());
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}
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// check same things for lib
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TEST(dl, lib_preempts_global_default) {
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ASSERT_EQ(3370318, lib_global_default_get_serial());
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}
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TEST(dl, lib_does_not_preempt_global_protected) {
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ASSERT_EQ(3370318, lib_global_protected_get_serial());
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}
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TEST(dl, exec_linker) {
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#if defined(__BIONIC__)
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#if defined(__LP64__)
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static constexpr const char* kPathToLinker = "/system/bin/linker64";
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#else
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static constexpr const char* kPathToLinker = "/system/bin/linker";
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#endif
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ExecTestHelper eth;
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std::string expected_output = std::string("This is ") + kPathToLinker +
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", the helper program for dynamic executables.\n";
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eth.SetArgs( { kPathToLinker, nullptr });
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eth.Run([&]() { execve(kPathToLinker, eth.GetArgs(), eth.GetEnv()); }, 0, expected_output.c_str());
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#endif
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}
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TEST(dl, preinit_system_calls) {
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#if defined(__BIONIC__)
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std::string helper = get_testlib_root() +
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"/preinit_syscall_test_helper/preinit_syscall_test_helper";
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chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
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ExecTestHelper eth;
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eth.SetArgs({ helper.c_str(), nullptr });
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eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
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#endif
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}
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TEST(dl, xfail_preinit_getauxval) {
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#if defined(__BIONIC__)
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std::string helper = get_testlib_root() +
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"/preinit_getauxval_test_helper/preinit_getauxval_test_helper";
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chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607
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ExecTestHelper eth;
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eth.SetArgs({ helper.c_str(), nullptr });
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eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr);
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#endif
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}
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// TODO: Add tests for LD_PRELOADs
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