| /* |
| * Copyright (C) 2015 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 <android-base/file.h> |
| |
| #include "dso.h" |
| #include "environment.h" |
| |
| TEST(environment, GetCpusFromString) { |
| ASSERT_EQ(GetCpusFromString(""), std::vector<int>()); |
| ASSERT_EQ(GetCpusFromString("0-2"), std::vector<int>({0, 1, 2})); |
| ASSERT_EQ(GetCpusFromString("0,2-3"), std::vector<int>({0, 2, 3})); |
| ASSERT_EQ(GetCpusFromString("1,0-3,3,4"), std::vector<int>({0, 1, 2, 3, 4})); |
| } |
| |
| TEST(environment, PrepareVdsoFile) { |
| std::string content; |
| ASSERT_TRUE(android::base::ReadFileToString("/proc/self/maps", &content)); |
| if (content.find("[vdso]") == std::string::npos) { |
| // Vdso isn't used, no need to test. |
| return; |
| } |
| TemporaryDir tmpdir; |
| ScopedTempFiles scoped_temp_files(tmpdir.path); |
| PrepareVdsoFile(); |
| std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_ELF_FILE, "[vdso]", |
| sizeof(size_t) == sizeof(uint64_t)); |
| ASSERT_TRUE(dso != nullptr); |
| ASSERT_NE(dso->GetDebugFilePath(), "[vdso]"); |
| } |
| |
| TEST(environment, GetHardwareFromCpuInfo) { |
| std::string cpu_info = "CPU revision : 10\n\n" |
| "Hardware : Symbol i.MX6 Freeport_Plat Quad/DualLite (Device Tree)\n"; |
| ASSERT_EQ("Symbol i.MX6 Freeport_Plat Quad/DualLite (Device Tree)", |
| GetHardwareFromCpuInfo(cpu_info)); |
| } |
| |
| TEST(environment, MappedFileOnlyExistInMemory) { |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("")); |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("[stack]")); |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("[anon:.bss]")); |
| ASSERT_FALSE(MappedFileOnlyExistInMemory("[vdso]")); |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("/dev/__properties__/u:object_r")); |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("//anon")); |
| ASSERT_TRUE(MappedFileOnlyExistInMemory("/memfd:/jit-cache")); |
| ASSERT_FALSE(MappedFileOnlyExistInMemory("./TemporaryFile-12345")); |
| ASSERT_FALSE(MappedFileOnlyExistInMemory("/system/lib64/libc.so")); |
| } |
| |
| TEST(environment, SetPerfEventLimits) { |
| #if defined(__ANDROID__) |
| if (GetAndroidVersion() <= kAndroidVersionP) { |
| return; |
| } |
| uint64_t orig_freq = 100000; |
| size_t orig_percent = 25; |
| uint64_t orig_mlock_kb = 516; |
| bool has_freq = GetMaxSampleFrequency(&orig_freq); |
| bool has_percent = GetCpuTimeMaxPercent(&orig_percent); |
| bool has_mlock_kb = GetPerfEventMlockKb(&orig_mlock_kb); |
| |
| ASSERT_TRUE(SetPerfEventLimits(orig_freq + 1, orig_percent + 1, orig_mlock_kb + 1)); |
| if (has_freq) { |
| uint64_t value; |
| ASSERT_TRUE(GetMaxSampleFrequency(&value)); |
| ASSERT_EQ(value, orig_freq + 1); |
| } |
| if (has_percent) { |
| size_t value; |
| ASSERT_TRUE(GetCpuTimeMaxPercent(&value)); |
| ASSERT_EQ(value, orig_percent + 1); |
| } |
| if (has_mlock_kb) { |
| uint64_t value; |
| ASSERT_TRUE(GetPerfEventMlockKb(&value)); |
| ASSERT_EQ(value, orig_mlock_kb + 1); |
| } |
| // Restore the environment. |
| ASSERT_TRUE(SetPerfEventLimits(orig_freq, orig_percent, orig_mlock_kb)); |
| #else // !defined(__ANDROID__) |
| GTEST_LOG_(INFO) << "This test tests setting properties on Android."; |
| #endif |
| } |