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/*
* Copyright (C) 2014 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 <array>
#include "common_runtime_test.h"
#include "instruction_set_features.h"
#include <gtest/gtest.h>
#ifdef ART_TARGET_ANDROID
#include <android-base/properties.h>
#endif
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
namespace art {
#ifdef ART_TARGET_ANDROID
using android::base::StringPrintf;
#if defined(__aarch64__)
TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyVariant) {
LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
#else
TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyVariant) {
#endif
if (kIsTargetBuild) {
// atest differs in build-time and run-time features.
TEST_DISABLED_FOR_X86();
TEST_DISABLED_FOR_X86_64();
}
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Read the variant property.
std::string key = StringPrintf("dalvik.vm.isa.%s.variant", GetInstructionSetString(kRuntimeISA));
std::string dex2oat_isa_variant = android::base::GetProperty(key, "");
if (!dex2oat_isa_variant.empty()) {
// Use features from property to build InstructionSetFeatures and check against build's
// features.
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> property_features(
InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
<< "System property features: " << *property_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
}
#if defined(__aarch64__)
TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromSystemPropertyString) {
LOG(WARNING) << "Test disabled due to no CPP define for A53 erratum 835769";
#else
TEST(InstructionSetFeaturesTest, FeaturesFromSystemPropertyString) {
#endif
if (kIsTargetBuild) {
// atest differs in build-time and run-time features.
TEST_DISABLED_FOR_X86();
TEST_DISABLED_FOR_X86_64();
}
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Read the variant property.
std::string variant_key = StringPrintf("dalvik.vm.isa.%s.variant",
GetInstructionSetString(kRuntimeISA));
std::string dex2oat_isa_variant = android::base::GetProperty(variant_key, "");
if (!dex2oat_isa_variant.empty()) {
// Read the features property.
std::string features_key = StringPrintf("dalvik.vm.isa.%s.features",
GetInstructionSetString(kRuntimeISA));
std::string dex2oat_isa_features = android::base::GetProperty(features_key, "");
if (!dex2oat_isa_features.empty()) {
// Use features from property to build InstructionSetFeatures and check against build's
// features.
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> base_features(
InstructionSetFeatures::FromVariant(kRuntimeISA, dex2oat_isa_variant, &error_msg));
ASSERT_TRUE(base_features.get() != nullptr) << error_msg;
std::unique_ptr<const InstructionSetFeatures> property_features(
base_features->AddFeaturesFromString(dex2oat_isa_features, &error_msg));
ASSERT_TRUE(property_features.get() != nullptr) << error_msg;
EXPECT_TRUE(property_features->HasAtLeast(instruction_set_features.get()))
<< "System property features: " << *property_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
}
}
#if defined(__arm__)
TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromCpuInfo) {
LOG(WARNING) << "Test disabled due to buggy ARM kernels";
#else
TEST(InstructionSetFeaturesTest, FeaturesFromCpuInfo) {
#endif
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Check we get the same instruction set features using /proc/cpuinfo.
std::unique_ptr<const InstructionSetFeatures> cpuinfo_features(
InstructionSetFeatures::FromCpuInfo());
EXPECT_TRUE(cpuinfo_features->HasAtLeast(instruction_set_features.get()))
<< "CPU Info features: " << *cpuinfo_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
#endif
#ifndef ART_TARGET_ANDROID
TEST(InstructionSetFeaturesTest, HostFeaturesFromCppDefines) {
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> default_features(
InstructionSetFeatures::FromVariant(kRuntimeISA, "default", &error_msg));
ASSERT_TRUE(error_msg.empty());
std::unique_ptr<const InstructionSetFeatures> cpp_features(
InstructionSetFeatures::FromCppDefines());
EXPECT_TRUE(cpp_features->HasAtLeast(default_features.get()))
<< "Default variant features: " << *default_features.get()
<< "\nFeatures from build: " << *cpp_features.get();
}
#endif
#if defined(__arm__)
TEST(InstructionSetFeaturesTest, DISABLED_FeaturesFromHwcap) {
LOG(WARNING) << "Test disabled due to buggy ARM kernels";
#else
TEST(InstructionSetFeaturesTest, FeaturesFromHwcap) {
#endif
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Check we get the same instruction set features using AT_HWCAP.
std::unique_ptr<const InstructionSetFeatures> hwcap_features(
InstructionSetFeatures::FromHwcap());
EXPECT_TRUE(hwcap_features->HasAtLeast(instruction_set_features.get()))
<< "Hwcap features: " << *hwcap_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
TEST(InstructionSetFeaturesTest, FeaturesFromAssembly) {
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Check we get the same instruction set features using assembly tests.
std::unique_ptr<const InstructionSetFeatures> assembly_features(
InstructionSetFeatures::FromAssembly());
EXPECT_TRUE(assembly_features->HasAtLeast(instruction_set_features.get()))
<< "Assembly features: " << *assembly_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
TEST(InstructionSetFeaturesTest, FeaturestFromCpuFeatures) {
// Take the default set of instruction features from the build.
std::unique_ptr<const InstructionSetFeatures> instruction_set_features(
InstructionSetFeatures::FromCppDefines());
// Check we get the same instruction set features using the cpu_features library
std::unique_ptr<const InstructionSetFeatures> library_features(
InstructionSetFeatures::FromCpuFeatures());
EXPECT_TRUE(library_features->HasAtLeast(instruction_set_features.get()))
<< "Library features: " << *library_features.get()
<< "\nFeatures from build: " << *instruction_set_features.get();
}
TEST(InstructionSetFeaturesTest, FeaturesFromRuntimeDetection) {
if (!InstructionSetFeatures::IsRuntimeDetectionSupported()) {
EXPECT_EQ(InstructionSetFeatures::FromRuntimeDetection(), nullptr);
}
}
// The instruction set feature string must not contain 'default' together with
// other feature names.
//
// Test that InstructionSetFeatures::AddFeaturesFromString returns nullptr and
// an error is reported when the value 'default' is specified together
// with other feature names in an instruction set feature string.
TEST(InstructionSetFeaturesTest, AddFeaturesFromStringWithDefaultAndOtherNames) {
std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
InstructionSetFeatures::FromCppDefines());
std::vector<std::string> invalid_feature_strings = {
"a,default",
"default,a",
"a,default,b",
"a,b,default",
"default,a,b,c",
"a,b,default,c,d",
"a, default ",
" default , a",
"a, default , b",
"default,runtime"
};
for (const std::string& invalid_feature_string : invalid_feature_strings) {
std::string error_msg;
EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
EXPECT_EQ(error_msg,
"Specific instruction set feature(s) cannot be used when 'default' is used.");
}
}
// The instruction set feature string must not contain 'runtime' together with
// other feature names.
//
// Test that InstructionSetFeatures::AddFeaturesFromString returns nullptr and
// an error is reported when the value 'runtime' is specified together
// with other feature names in an instruction set feature string.
TEST(InstructionSetFeaturesTest, AddFeaturesFromStringWithRuntimeAndOtherNames) {
std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
InstructionSetFeatures::FromCppDefines());
std::vector<std::string> invalid_feature_strings = {
"a,runtime",
"runtime,a",
"a,runtime,b",
"a,b,runtime",
"runtime,a,b,c",
"a,b,runtime,c,d",
"a, runtime ",
" runtime , a",
"a, runtime , b",
"runtime,default"
};
for (const std::string& invalid_feature_string : invalid_feature_strings) {
std::string error_msg;
EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
EXPECT_EQ(error_msg,
"Specific instruction set feature(s) cannot be used when 'runtime' is used.");
}
}
// Spaces and multiple commas are ignores in a instruction set feature string.
//
// Test that a use of spaces and multiple commas with 'default' and 'runtime'
// does not cause errors.
TEST(InstructionSetFeaturesTest, AddFeaturesFromValidStringContainingDefaultOrRuntime) {
std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
InstructionSetFeatures::FromCppDefines());
std::vector<std::string> valid_feature_strings = {
"default",
",,,default",
"default,,,,",
",,,default,,,,",
"default, , , ",
" , , ,default",
" , , ,default, , , ",
" default , , , ",
",,,runtime",
"runtime,,,,",
",,,runtime,,,,",
"runtime, , , ",
" , , ,runtime",
" , , ,runtime, , , ",
" runtime , , , "
};
for (const std::string& valid_feature_string : valid_feature_strings) {
std::string error_msg;
EXPECT_NE(cpp_defined_features->AddFeaturesFromString(valid_feature_string, &error_msg),
nullptr) << " Valid feature string: '" << valid_feature_string << "'";
EXPECT_TRUE(error_msg.empty()) << error_msg;
}
}
// Spaces and multiple commas are ignores in a instruction set feature string.
//
// Test that a use of spaces and multiple commas without any feature names
// causes errors.
TEST(InstructionSetFeaturesTest, AddFeaturesFromInvalidStringWithoutFeatureNames) {
std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
InstructionSetFeatures::FromCppDefines());
std::vector<std::string> invalid_feature_strings = {
" ",
" ",
",",
",,",
" , , ,,,,,,",
"\t",
" \t ",
",",
",,",
" , , ,,,,,,"
};
for (const std::string& invalid_feature_string : invalid_feature_strings) {
std::string error_msg;
EXPECT_EQ(cpp_defined_features->AddFeaturesFromString(invalid_feature_string, &error_msg),
nullptr) << " Invalid feature string: '" << invalid_feature_string << "'";
EXPECT_EQ(error_msg, "No instruction set features specified");
}
}
TEST(InstructionSetFeaturesTest, AddFeaturesFromStringRuntime) {
std::unique_ptr<const InstructionSetFeatures> cpp_defined_features(
InstructionSetFeatures::FromCppDefines());
std::string error_msg;
const std::unique_ptr<const InstructionSetFeatures> features =
cpp_defined_features->AddFeaturesFromString("runtime", &error_msg);
EXPECT_NE(features, nullptr);
EXPECT_TRUE(error_msg.empty()) << error_msg;
if (!InstructionSetFeatures::IsRuntimeDetectionSupported()) {
EXPECT_TRUE(features->Equals(cpp_defined_features.get()));
}
}
} // namespace art