| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <gtest/gtest.h> |
| |
| #include <dlfcn.h> |
| #include <libgen.h> |
| #include <limits.h> |
| #include <stdio.h> |
| #include <stdint.h> |
| |
| #include <string> |
| |
| #include "gtest_globals.h" |
| #include "utils.h" |
| |
| extern "C" int main_global_default_serial() { |
| return 3370318; |
| } |
| |
| extern "C" int main_global_protected_serial() { |
| return 2716057; |
| } |
| |
| // The following functions are defined in DT_NEEDED |
| // libdl_preempt_test.so library. |
| |
| // This one calls main_global_default_serial |
| extern "C" int main_global_default_get_serial(); |
| |
| // This one calls main_global_protected_serial |
| extern "C" int main_global_protected_get_serial(); |
| |
| // This one calls lib_global_default_serial |
| extern "C" int lib_global_default_get_serial(); |
| |
| // This one calls lib_global_protected_serial |
| extern "C" int lib_global_protected_get_serial(); |
| |
| // This test verifies that the global default function |
| // main_global_default_serial() is preempted by |
| // the function defined above. |
| TEST(dl, main_preempts_global_default) { |
| ASSERT_EQ(3370318, main_global_default_get_serial()); |
| } |
| |
| // This one makes sure that the global protected |
| // symbols do not get preempted |
| TEST(dl, main_does_not_preempt_global_protected) { |
| ASSERT_EQ(3370318, main_global_protected_get_serial()); |
| } |
| |
| // check same things for lib |
| TEST(dl, lib_preempts_global_default) { |
| ASSERT_EQ(3370318, lib_global_default_get_serial()); |
| } |
| |
| TEST(dl, lib_does_not_preempt_global_protected) { |
| ASSERT_EQ(3370318, lib_global_protected_get_serial()); |
| } |
| |
| TEST(dl, exec_linker) { |
| #if defined(__BIONIC__) |
| #if defined(__LP64__) |
| static constexpr const char* kPathToLinker = "/system/bin/linker64"; |
| #else |
| static constexpr const char* kPathToLinker = "/system/bin/linker"; |
| #endif |
| ExecTestHelper eth; |
| std::string expected_output = std::string("This is ") + kPathToLinker + |
| ", the helper program for dynamic executables.\n"; |
| eth.SetArgs( { kPathToLinker, nullptr }); |
| eth.Run([&]() { execve(kPathToLinker, eth.GetArgs(), eth.GetEnv()); }, 0, expected_output.c_str()); |
| #endif |
| } |
| |
| TEST(dl, preinit_system_calls) { |
| #if defined(__BIONIC__) |
| std::string helper = get_testlib_root() + |
| "/preinit_syscall_test_helper/preinit_syscall_test_helper"; |
| chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607 |
| ExecTestHelper eth; |
| eth.SetArgs({ helper.c_str(), nullptr }); |
| eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr); |
| #endif |
| } |
| |
| TEST(dl, xfail_preinit_getauxval) { |
| #if defined(__BIONIC__) |
| std::string helper = get_testlib_root() + |
| "/preinit_getauxval_test_helper/preinit_getauxval_test_helper"; |
| chmod(helper.c_str(), 0755); // TODO: "x" lost in CTS, b/34945607 |
| ExecTestHelper eth; |
| eth.SetArgs({ helper.c_str(), nullptr }); |
| eth.Run([&]() { execve(helper.c_str(), eth.GetArgs(), eth.GetEnv()); }, 0, nullptr); |
| #endif |
| } |
| |
| // TODO: Add tests for LD_PRELOADs |