/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <android-base/file.h>
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#include "dso.h"
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#include "environment.h"
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TEST(environment, GetCpusFromString) {
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ASSERT_EQ(GetCpusFromString(""), std::vector<int>());
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ASSERT_EQ(GetCpusFromString("0-2"), std::vector<int>({0, 1, 2}));
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ASSERT_EQ(GetCpusFromString("0,2-3"), std::vector<int>({0, 2, 3}));
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ASSERT_EQ(GetCpusFromString("1,0-3,3,4"), std::vector<int>({0, 1, 2, 3, 4}));
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}
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TEST(environment, PrepareVdsoFile) {
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std::string content;
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ASSERT_TRUE(android::base::ReadFileToString("/proc/self/maps", &content));
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if (content.find("[vdso]") == std::string::npos) {
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// Vdso isn't used, no need to test.
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return;
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}
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TemporaryDir tmpdir;
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ScopedTempFiles scoped_temp_files(tmpdir.path);
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PrepareVdsoFile();
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std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_ELF_FILE, "[vdso]",
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sizeof(size_t) == sizeof(uint64_t));
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ASSERT_TRUE(dso != nullptr);
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ASSERT_NE(dso->GetDebugFilePath(), "[vdso]");
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}
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TEST(environment, GetHardwareFromCpuInfo) {
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std::string cpu_info = "CPU revision : 10\n\n"
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"Hardware : Symbol i.MX6 Freeport_Plat Quad/DualLite (Device Tree)\n";
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ASSERT_EQ("Symbol i.MX6 Freeport_Plat Quad/DualLite (Device Tree)",
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GetHardwareFromCpuInfo(cpu_info));
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}
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TEST(environment, MappedFileOnlyExistInMemory) {
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ASSERT_TRUE(MappedFileOnlyExistInMemory(""));
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ASSERT_TRUE(MappedFileOnlyExistInMemory("[stack]"));
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ASSERT_TRUE(MappedFileOnlyExistInMemory("[anon:.bss]"));
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ASSERT_FALSE(MappedFileOnlyExistInMemory("[vdso]"));
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ASSERT_TRUE(MappedFileOnlyExistInMemory("/dev/__properties__/u:object_r"));
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ASSERT_TRUE(MappedFileOnlyExistInMemory("//anon"));
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ASSERT_TRUE(MappedFileOnlyExistInMemory("/memfd:/jit-cache"));
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ASSERT_FALSE(MappedFileOnlyExistInMemory("./TemporaryFile-12345"));
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ASSERT_FALSE(MappedFileOnlyExistInMemory("/system/lib64/libc.so"));
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}
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TEST(environment, SetPerfEventLimits) {
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#if defined(__ANDROID__)
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if (GetAndroidVersion() <= kAndroidVersionP) {
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return;
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}
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uint64_t orig_freq = 100000;
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size_t orig_percent = 25;
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uint64_t orig_mlock_kb = 516;
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bool has_freq = GetMaxSampleFrequency(&orig_freq);
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bool has_percent = GetCpuTimeMaxPercent(&orig_percent);
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bool has_mlock_kb = GetPerfEventMlockKb(&orig_mlock_kb);
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ASSERT_TRUE(SetPerfEventLimits(orig_freq + 1, orig_percent + 1, orig_mlock_kb + 1));
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if (has_freq) {
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uint64_t value;
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ASSERT_TRUE(GetMaxSampleFrequency(&value));
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ASSERT_EQ(value, orig_freq + 1);
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}
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if (has_percent) {
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size_t value;
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ASSERT_TRUE(GetCpuTimeMaxPercent(&value));
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ASSERT_EQ(value, orig_percent + 1);
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}
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if (has_mlock_kb) {
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uint64_t value;
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ASSERT_TRUE(GetPerfEventMlockKb(&value));
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ASSERT_EQ(value, orig_mlock_kb + 1);
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}
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// Restore the environment.
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ASSERT_TRUE(SetPerfEventLimits(orig_freq, orig_percent, orig_mlock_kb));
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#else // !defined(__ANDROID__)
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GTEST_LOG_(INFO) << "This test tests setting properties on Android.";
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#endif
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}
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