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/*
* 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, 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
}
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