1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// 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
|
