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/*
* Copyright (C) 2011 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 "arch/instruction_set_features.h"
#include "art_method-inl.h"
#include "class_linker.h"
#include "common_compiler_test.h"
#include "compiled_method.h"
#include "compiler.h"
#include "dex/pass_manager.h"
#include "dex/quick/dex_file_to_method_inliner_map.h"
#include "dex/quick_compiler_callbacks.h"
#include "dex/verification_results.h"
#include "driver/compiler_driver.h"
#include "driver/compiler_options.h"
#include "entrypoints/quick/quick_entrypoints.h"
#include "mirror/class-inl.h"
#include "mirror/object_array-inl.h"
#include "mirror/object-inl.h"
#include "oat_file-inl.h"
#include "oat_writer.h"
#include "scoped_thread_state_change.h"
#include "vector_output_stream.h"
namespace art {
class OatTest : public CommonCompilerTest {
protected:
static const bool kCompile = false; // DISABLED_ due to the time to compile libcore
void CheckMethod(ArtMethod* method,
const OatFile::OatMethod& oat_method,
const DexFile& dex_file)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
const CompiledMethod* compiled_method =
compiler_driver_->GetCompiledMethod(MethodReference(&dex_file,
method->GetDexMethodIndex()));
if (compiled_method == nullptr) {
EXPECT_TRUE(oat_method.GetQuickCode() == nullptr) << PrettyMethod(method) << " "
<< oat_method.GetQuickCode();
EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U);
EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
} else {
const void* quick_oat_code = oat_method.GetQuickCode();
EXPECT_TRUE(quick_oat_code != nullptr) << PrettyMethod(method);
EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes());
EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask());
EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask());
uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(quick_oat_code), 2);
quick_oat_code = reinterpret_cast<const void*>(oat_code_aligned);
const SwapVector<uint8_t>* quick_code = compiled_method->GetQuickCode();
EXPECT_TRUE(quick_code != nullptr);
size_t code_size = quick_code->size() * sizeof(quick_code[0]);
EXPECT_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size))
<< PrettyMethod(method) << " " << code_size;
CHECK_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size));
}
}
};
TEST_F(OatTest, WriteRead) {
TimingLogger timings("OatTest::WriteRead", false, false);
ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
// TODO: make selectable.
Compiler::Kind compiler_kind = Compiler::kQuick;
InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86;
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> insn_features(
InstructionSetFeatures::FromVariant(insn_set, "default", &error_msg));
ASSERT_TRUE(insn_features.get() != nullptr) << error_msg;
compiler_options_.reset(new CompilerOptions);
verification_results_.reset(new VerificationResults(compiler_options_.get()));
method_inliner_map_.reset(new DexFileToMethodInlinerMap);
timer_.reset(new CumulativeLogger("Compilation times"));
compiler_driver_.reset(new CompilerDriver(compiler_options_.get(),
verification_results_.get(),
method_inliner_map_.get(),
compiler_kind, insn_set,
insn_features.get(), false, nullptr, nullptr, nullptr,
2, true, true, "", timer_.get(), -1, ""));
jobject class_loader = nullptr;
if (kCompile) {
TimingLogger timings2("OatTest::WriteRead", false, false);
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings2);
}
ScratchFile tmp;
SafeMap<std::string, std::string> key_value_store;
key_value_store.Put(OatHeader::kImageLocationKey, "lue.art");
OatWriter oat_writer(class_linker->GetBootClassPath(),
42U,
4096U,
0,
compiler_driver_.get(),
nullptr,
&timings,
&key_value_store);
bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(),
!kIsTargetBuild,
class_linker->GetBootClassPath(),
&oat_writer,
tmp.GetFile());
ASSERT_TRUE(success);
if (kCompile) { // OatWriter strips the code, regenerate to compare
compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings);
}
std::unique_ptr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), nullptr,
nullptr, false, nullptr, &error_msg));
ASSERT_TRUE(oat_file.get() != nullptr) << error_msg;
const OatHeader& oat_header = oat_file->GetOatHeader();
ASSERT_TRUE(oat_header.IsValid());
ASSERT_EQ(1U, oat_header.GetDexFileCount()); // core
ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum());
ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin());
ASSERT_EQ("lue.art", std::string(oat_header.GetStoreValueByKey(OatHeader::kImageLocationKey)));
ASSERT_TRUE(java_lang_dex_file_ != nullptr);
const DexFile& dex_file = *java_lang_dex_file_;
uint32_t dex_file_checksum = dex_file.GetLocationChecksum();
const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file.GetLocation().c_str(),
&dex_file_checksum);
ASSERT_TRUE(oat_dex_file != nullptr);
CHECK_EQ(dex_file.GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum());
ScopedObjectAccess soa(Thread::Current());
auto pointer_size = class_linker->GetImagePointerSize();
for (size_t i = 0; i < dex_file.NumClassDefs(); i++) {
const DexFile::ClassDef& class_def = dex_file.GetClassDef(i);
const uint8_t* class_data = dex_file.GetClassData(class_def);
size_t num_virtual_methods = 0;
if (class_data != nullptr) {
ClassDataItemIterator it(dex_file, class_data);
num_virtual_methods = it.NumVirtualMethods();
}
const char* descriptor = dex_file.GetClassDescriptor(class_def);
mirror::Class* klass = class_linker->FindClass(soa.Self(), descriptor,
NullHandle<mirror::ClassLoader>());
const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(i);
CHECK_EQ(mirror::Class::Status::kStatusNotReady, oat_class.GetStatus()) << descriptor;
CHECK_EQ(kCompile ? OatClassType::kOatClassAllCompiled : OatClassType::kOatClassNoneCompiled,
oat_class.GetType()) << descriptor;
size_t method_index = 0;
for (auto& m : klass->GetDirectMethods(pointer_size)) {
CheckMethod(&m, oat_class.GetOatMethod(method_index), dex_file);
++method_index;
}
size_t visited_virtuals = 0;
for (auto& m : klass->GetVirtualMethods(pointer_size)) {
if (!m.IsMiranda()) {
CheckMethod(&m, oat_class.GetOatMethod(method_index), dex_file);
++method_index;
++visited_virtuals;
}
}
EXPECT_EQ(visited_virtuals, num_virtual_methods);
}
}
TEST_F(OatTest, OatHeaderSizeCheck) {
// If this test is failing and you have to update these constants,
// it is time to update OatHeader::kOatVersion
EXPECT_EQ(72U, sizeof(OatHeader));
EXPECT_EQ(4U, sizeof(OatMethodOffsets));
EXPECT_EQ(28U, sizeof(OatQuickMethodHeader));
EXPECT_EQ(112 * GetInstructionSetPointerSize(kRuntimeISA), sizeof(QuickEntryPoints));
}
TEST_F(OatTest, OatHeaderIsValid) {
InstructionSet insn_set = kX86;
std::string error_msg;
std::unique_ptr<const InstructionSetFeatures> insn_features(
InstructionSetFeatures::FromVariant(insn_set, "default", &error_msg));
ASSERT_TRUE(insn_features.get() != nullptr) << error_msg;
std::vector<const DexFile*> dex_files;
uint32_t image_file_location_oat_checksum = 0;
uint32_t image_file_location_oat_begin = 0;
std::unique_ptr<OatHeader> oat_header(OatHeader::Create(insn_set,
insn_features.get(),
&dex_files,
image_file_location_oat_checksum,
image_file_location_oat_begin,
nullptr));
ASSERT_NE(oat_header.get(), nullptr);
ASSERT_TRUE(oat_header->IsValid());
char* magic = const_cast<char*>(oat_header->GetMagic());
strcpy(magic, ""); // bad magic
ASSERT_FALSE(oat_header->IsValid());
strcpy(magic, "oat\n000"); // bad version
ASSERT_FALSE(oat_header->IsValid());
}
} // namespace art
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