| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/files/file_path.h" |
| #include "base/macros.h" |
| #include "base/native_library.h" |
| #include "base/path_service.h" |
| #include "base/test/native_library_test_utils.h" |
| #include "build/build_config.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| |
| const FilePath::CharType kDummyLibraryPath[] = |
| FILE_PATH_LITERAL("dummy_library"); |
| |
| TEST(NativeLibraryTest, LoadFailure) { |
| NativeLibraryLoadError error; |
| EXPECT_FALSE(LoadNativeLibrary(FilePath(kDummyLibraryPath), &error)); |
| EXPECT_FALSE(error.ToString().empty()); |
| } |
| |
| // |error| is optional and can be null. |
| TEST(NativeLibraryTest, LoadFailureWithNullError) { |
| EXPECT_FALSE(LoadNativeLibrary(FilePath(kDummyLibraryPath), nullptr)); |
| } |
| |
| TEST(NativeLibraryTest, GetNativeLibraryName) { |
| const char kExpectedName[] = |
| #if defined(OS_WIN) |
| "mylib.dll"; |
| #elif defined(OS_IOS) |
| "mylib"; |
| #elif defined(OS_MACOSX) |
| "libmylib.dylib"; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| "libmylib.so"; |
| #endif |
| EXPECT_EQ(kExpectedName, GetNativeLibraryName("mylib")); |
| } |
| |
| TEST(NativeLibraryTest, GetLoadableModuleName) { |
| const char kExpectedName[] = |
| #if defined(OS_WIN) |
| "mylib.dll"; |
| #elif defined(OS_IOS) |
| "mylib"; |
| #elif defined(OS_MACOSX) |
| "mylib.so"; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| "libmylib.so"; |
| #endif |
| EXPECT_EQ(kExpectedName, GetLoadableModuleName("mylib")); |
| } |
| |
| // We don't support dynamic loading on iOS, and ASAN will complain about our |
| // intentional ODR violation because of |g_native_library_exported_value| being |
| // defined globally both here and in the shared library. |
| #if !defined(OS_IOS) && !defined(ADDRESS_SANITIZER) |
| |
| const char kTestLibraryName[] = |
| #if defined(OS_WIN) |
| "test_shared_library.dll"; |
| #elif defined(OS_MACOSX) |
| "libtest_shared_library.dylib"; |
| #elif defined(OS_ANDROID) && defined(COMPONENT_BUILD) |
| "libtest_shared_library.cr.so"; |
| #elif defined(OS_POSIX) || defined(OS_FUCHSIA) |
| "libtest_shared_library.so"; |
| #endif |
| |
| class TestLibrary { |
| public: |
| TestLibrary() : TestLibrary(NativeLibraryOptions()) {} |
| |
| explicit TestLibrary(const NativeLibraryOptions& options) |
| : library_(nullptr) { |
| base::FilePath exe_path; |
| |
| #if !defined(OS_FUCHSIA) |
| // Libraries do not sit alongside the executable in Fuchsia. NativeLibrary |
| // is aware of this and is able to resolve library paths correctly. |
| CHECK(base::PathService::Get(base::DIR_EXE, &exe_path)); |
| #endif |
| |
| library_ = LoadNativeLibraryWithOptions( |
| exe_path.AppendASCII(kTestLibraryName), options, nullptr); |
| CHECK(library_); |
| } |
| |
| ~TestLibrary() { |
| UnloadNativeLibrary(library_); |
| } |
| |
| template <typename ReturnType, typename... Args> |
| ReturnType Call(const char* function_name, Args... args) { |
| return reinterpret_cast<ReturnType(*)(Args...)>( |
| GetFunctionPointerFromNativeLibrary(library_, function_name))(args...); |
| } |
| |
| private: |
| NativeLibrary library_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TestLibrary); |
| }; |
| |
| // NativeLibraaryTest.LoadLibrary is failing on M tablets only. |
| // crbug/641309 |
| #if !defined(OS_ANDROID) |
| |
| // Verifies that we can load a native library and resolve its exported symbols. |
| TEST(NativeLibraryTest, LoadLibrary) { |
| TestLibrary library; |
| EXPECT_EQ(5, library.Call<int>("GetSimpleTestValue")); |
| } |
| |
| #endif // !defined(OS_ANDROID) |
| |
| // Android dlopen() requires further investigation, as it might vary across |
| // versions with respect to symbol resolution scope. |
| // TSan and MSan error out on RTLD_DEEPBIND, https://crbug.com/705255 |
| #if !defined(OS_ANDROID) && !defined(THREAD_SANITIZER) && \ |
| !defined(MEMORY_SANITIZER) |
| |
| // Verifies that the |prefer_own_symbols| option satisfies its guarantee that |
| // a loaded library will always prefer local symbol resolution before |
| // considering global symbols. |
| TEST(NativeLibraryTest, LoadLibraryPreferOwnSymbols) { |
| NativeLibraryOptions options; |
| options.prefer_own_symbols = true; |
| TestLibrary library(options); |
| |
| // Verify that this binary and the DSO use different storage for |
| // |g_native_library_exported_value|. |
| g_native_library_exported_value = 1; |
| library.Call<void>("SetExportedValue", 2); |
| EXPECT_EQ(1, g_native_library_exported_value); |
| g_native_library_exported_value = 3; |
| EXPECT_EQ(2, library.Call<int>("GetExportedValue")); |
| |
| // Both this binary and the library link against the |
| // native_library_test_utils source library, which in turn exports the |
| // NativeLibraryTestIncrement() function whose return value depends on some |
| // static internal state. |
| // |
| // The DSO's GetIncrementValue() forwards to that function inside the DSO. |
| // |
| // Here we verify that direct calls to NativeLibraryTestIncrement() in this |
| // binary return a sequence of values independent from the sequence returned |
| // by GetIncrementValue(), ensuring that the DSO is calling its own local |
| // definition of NativeLibraryTestIncrement(). |
| EXPECT_EQ(1, library.Call<int>("GetIncrementValue")); |
| EXPECT_EQ(1, NativeLibraryTestIncrement()); |
| EXPECT_EQ(2, library.Call<int>("GetIncrementValue")); |
| EXPECT_EQ(3, library.Call<int>("GetIncrementValue")); |
| EXPECT_EQ(4, library.Call<int>("NativeLibraryTestIncrement")); |
| EXPECT_EQ(2, NativeLibraryTestIncrement()); |
| EXPECT_EQ(3, NativeLibraryTestIncrement()); |
| } |
| |
| #endif // !defined(OS_ANDROID) |
| |
| #endif // !defined(OS_IOS) && !defined(ADDRESS_SANITIZER) |
| |
| } // namespace base |