1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <fstream>
18 #include <string>
19
20 #include <android-base/properties.h>
21 #include <android/api-level.h>
22 #include <gmock/gmock.h>
23 #include <gtest/gtest.h>
24 #include <kver/kernel_release.h>
25
26 namespace android {
27 namespace kernel {
28
29 class KernelVersionTest : public ::testing::Test {
30 protected:
31 const std::string arch_;
32 const int first_api_level_;
33 const bool should_run_compiler_test_;
34 const bool should_run_linker_test_;
35 std::string version_;
KernelVersionTest()36 KernelVersionTest()
37 : arch_(android::base::GetProperty("ro.bionic.arch", "")),
38 first_api_level_(
39 std::stoi(android::base::GetProperty("ro.vendor.api_level", "0"))),
40 should_run_compiler_test_(
41 first_api_level_ >= __ANDROID_API_R__ ||
42 (arch_ == "arm64" && first_api_level_ >= __ANDROID_API_Q__)),
43 should_run_linker_test_(first_api_level_ >= __ANDROID_API_S__) {
44 std::ifstream proc_version("/proc/version");
45 std::getline(proc_version, version_);
46 }
47 };
48
TEST_F(KernelVersionTest,IsntGCC)49 TEST_F(KernelVersionTest, IsntGCC) {
50 if (!should_run_compiler_test_) return;
51 const std::string needle = "gcc version";
52 ASSERT_THAT(version_, ::testing::Not(::testing::HasSubstr(needle)));
53 }
54
TEST_F(KernelVersionTest,IsClang)55 TEST_F(KernelVersionTest, IsClang) {
56 if (!should_run_compiler_test_) return;
57 const std::string needle = "clang version";
58 ASSERT_THAT(version_, ::testing::HasSubstr(needle));
59 }
60
TEST_F(KernelVersionTest,IsntBFD)61 TEST_F(KernelVersionTest, IsntBFD) {
62 if (!should_run_linker_test_) return;
63 const std::string needle = "GNU ld";
64 ASSERT_THAT(version_, ::testing::Not(::testing::HasSubstr(needle)));
65 ASSERT_THAT(version_, ::testing::Not(::testing::HasSubstr("GNU Binutils")));
66 ASSERT_THAT(version_, ::testing::Not(::testing::HasSubstr("binutils")));
67 }
68
TEST_F(KernelVersionTest,IsntGold)69 TEST_F(KernelVersionTest, IsntGold) {
70 if (!should_run_linker_test_) return;
71 const std::string needle = "GNU gold";
72 ASSERT_THAT(version_, ::testing::Not(::testing::HasSubstr(needle)));
73 }
74
TEST_F(KernelVersionTest,IsLLD)75 TEST_F(KernelVersionTest, IsLLD) {
76 if (!should_run_linker_test_) return;
77 const std::string needle = "LLD";
78 ASSERT_THAT(version_, ::testing::HasSubstr(needle));
79 }
80
81 // @VsrTest = 3.4.2
TEST_F(KernelVersionTest,IsKleaf)82 TEST_F(KernelVersionTest, IsKleaf) {
83 constexpr uint64_t kMinAndroidRelease = 15; // Android 15
84 const auto kernel_release =
85 android::kver::KernelRelease::Parse(version_, /* allow_suffix = */ true);
86 if (!kernel_release.has_value()) {
87 GTEST_SKIP()
88 << "The test only applies to android" << kMinAndroidRelease
89 << " or later kernels. The kernel release string does not have the"
90 << " GKI kernel release format: " << version_;
91 }
92 if (kernel_release->android_release() < kMinAndroidRelease) {
93 GTEST_SKIP() << "The test only applies to android" << kMinAndroidRelease
94 << " or later kernels. This kernel declares android"
95 << kernel_release->android_release() << ": " << version_;
96 }
97 ASSERT_THAT(version_, ::testing::HasSubstr("kleaf@"))
98 << "android" << kernel_release->android_release()
99 << " kernel is required to be built with Kleaf.";
100 }
101
102 } // namespace kernel
103 } // namespace android
104