compiler/oat_test.cc - platform/art - Git at Google

 /*
  * 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 "common_compiler_test.h"
 #include "compiler/compiler.h"
 #include "compiler/oat_writer.h"
 #include "entrypoints/quick/quick_entrypoints.h"
 #include "mirror/art_method-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/object-inl.h"
 #include "mirror/object_array-inl.h"
 #include "oat_file-inl.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(mirror::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 == NULL) {
       EXPECT_TRUE(oat_method.GetQuickCode() == NULL) << PrettyMethod(method) << " "
                                                      << oat_method.GetQuickCode();
       EXPECT_TRUE(oat_method.GetPortableCode() == NULL) << PrettyMethod(method) << " "
                                                         << oat_method.GetPortableCode();
       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();
       if (quick_oat_code != nullptr) {
         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 std::vector<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));
       } else {
         const void* portable_oat_code = oat_method.GetPortableCode();
         EXPECT_TRUE(portable_oat_code != nullptr) << PrettyMethod(method);
         EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U);
         EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
         EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
         uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(portable_oat_code), 2);
         portable_oat_code = reinterpret_cast<const void*>(oat_code_aligned);
         const std::vector<uint8_t>* portable_code = compiled_method->GetPortableCode();
         EXPECT_TRUE(portable_code != nullptr);
         size_t code_size = portable_code->size() * sizeof(portable_code[0]);
         EXPECT_EQ(0, memcmp(quick_oat_code, &portable_code[0], code_size))
             << PrettyMethod(method) << " " << code_size;
         CHECK_EQ(0, memcmp(quick_oat_code, &portable_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 = kUsePortableCompiler
       ? Compiler::kPortable
       : Compiler::kQuick;
   InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86;

   InstructionSetFeatures insn_features;
   compiler_options_.reset(new CompilerOptions);
   verification_results_.reset(new VerificationResults(compiler_options_.get()));
   method_inliner_map_.reset(new DexFileToMethodInlinerMap);
   callbacks_.reset(new CompilerCallbacksImpl(verification_results_.get(),
                                              method_inliner_map_.get()));
   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, false, NULL, 2, true, true,
                                             timer_.get()));
   jobject class_loader = NULL;
   if (kCompile) {
     TimingLogger timings("OatTest::WriteRead", false, false);
     compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings);
   }

   ScopedObjectAccess soa(Thread::Current());
   ScratchFile tmp;
   OatWriter oat_writer(class_linker->GetBootClassPath(),
                        42U,
                        4096U,
                        "lue.art",
                        compiler_driver_.get(),
                        &timings);
   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::string error_msg;
   std::unique_ptr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false,
                                             &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", oat_header.GetImageFileLocation());

   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());
   for (size_t i = 0; i < dex_file->NumClassDefs(); i++) {
     const DexFile::ClassDef& class_def = dex_file->GetClassDef(i);
     const byte* class_data = dex_file->GetClassData(class_def);
     size_t num_virtual_methods = 0;
     if (class_data != NULL) {
       ClassDataItemIterator it(*dex_file, class_data);
       num_virtual_methods = it.NumVirtualMethods();
     }
     const char* descriptor = dex_file->GetClassDescriptor(class_def);
     StackHandleScope<1> hs(soa.Self());
     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 (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) {
       CheckMethod(klass->GetDirectMethod(i),
                   oat_class.GetOatMethod(method_index), dex_file);
     }
     for (size_t i = 0; i < num_virtual_methods; i++, method_index++) {
       CheckMethod(klass->GetVirtualMethod(i),
                   oat_class.GetOatMethod(method_index), dex_file);
     }
   }
 }

 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(80U, sizeof(OatHeader));
   EXPECT_EQ(8U, sizeof(OatMethodOffsets));
   EXPECT_EQ(24U, sizeof(OatQuickMethodHeader));
   EXPECT_EQ(78 * GetInstructionSetPointerSize(kRuntimeISA), sizeof(QuickEntryPoints));
 }

 TEST_F(OatTest, OatHeaderIsValid) {
     InstructionSet instruction_set = kX86;
     InstructionSetFeatures instruction_set_features;
     std::vector<const DexFile*> dex_files;
     uint32_t image_file_location_oat_checksum = 0;
     uint32_t image_file_location_oat_begin = 0;
     const std::string image_file_location;
     OatHeader oat_header(instruction_set,
                          instruction_set_features,
                          &dex_files,
                          image_file_location_oat_checksum,
                          image_file_location_oat_begin,
                          image_file_location);
     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
	/*
	* 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 "common_compiler_test.h"
	#include "compiler/compiler.h"
	#include "compiler/oat_writer.h"
	#include "entrypoints/quick/quick_entrypoints.h"
	#include "mirror/art_method-inl.h"
	#include "mirror/class-inl.h"
	#include "mirror/object-inl.h"
	#include "mirror/object_array-inl.h"
	#include "oat_file-inl.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(mirror::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 == NULL) {
	EXPECT_TRUE(oat_method.GetQuickCode() == NULL) << PrettyMethod(method) << " "
	<< oat_method.GetQuickCode();
	EXPECT_TRUE(oat_method.GetPortableCode() == NULL) << PrettyMethod(method) << " "
	<< oat_method.GetPortableCode();
	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();
	if (quick_oat_code != nullptr) {
	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 std::vector<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));
	} else {
	const void* portable_oat_code = oat_method.GetPortableCode();
	EXPECT_TRUE(portable_oat_code != nullptr) << PrettyMethod(method);
	EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U);
	EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
	EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
	uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(portable_oat_code), 2);
	portable_oat_code = reinterpret_cast<const void*>(oat_code_aligned);
	const std::vector<uint8_t>* portable_code = compiled_method->GetPortableCode();
	EXPECT_TRUE(portable_code != nullptr);
	size_t code_size = portable_code->size() * sizeof(portable_code[0]);
	EXPECT_EQ(0, memcmp(quick_oat_code, &portable_code[0], code_size))
	<< PrettyMethod(method) << " " << code_size;
	CHECK_EQ(0, memcmp(quick_oat_code, &portable_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 = kUsePortableCompiler
	? Compiler::kPortable
	: Compiler::kQuick;
	InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86;

	InstructionSetFeatures insn_features;
	compiler_options_.reset(new CompilerOptions);
	verification_results_.reset(new VerificationResults(compiler_options_.get()));
	method_inliner_map_.reset(new DexFileToMethodInlinerMap);
	callbacks_.reset(new CompilerCallbacksImpl(verification_results_.get(),
	method_inliner_map_.get()));
	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, false, NULL, 2, true, true,
	timer_.get()));
	jobject class_loader = NULL;
	if (kCompile) {
	TimingLogger timings("OatTest::WriteRead", false, false);
	compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings);
	}

	ScopedObjectAccess soa(Thread::Current());
	ScratchFile tmp;
	OatWriter oat_writer(class_linker->GetBootClassPath(),
	42U,
	4096U,
	"lue.art",
	compiler_driver_.get(),
	&timings);
	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::string error_msg;
	std::unique_ptr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false,
	&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", oat_header.GetImageFileLocation());

	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());
	for (size_t i = 0; i < dex_file->NumClassDefs(); i++) {
	const DexFile::ClassDef& class_def = dex_file->GetClassDef(i);
	const byte* class_data = dex_file->GetClassData(class_def);
	size_t num_virtual_methods = 0;
	if (class_data != NULL) {
	ClassDataItemIterator it(*dex_file, class_data);
	num_virtual_methods = it.NumVirtualMethods();
	}
	const char* descriptor = dex_file->GetClassDescriptor(class_def);
	StackHandleScope<1> hs(soa.Self());
	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 (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) {
	CheckMethod(klass->GetDirectMethod(i),
	oat_class.GetOatMethod(method_index), dex_file);
	}
	for (size_t i = 0; i < num_virtual_methods; i++, method_index++) {
	CheckMethod(klass->GetVirtualMethod(i),
	oat_class.GetOatMethod(method_index), dex_file);
	}
	}
	}

	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(80U, sizeof(OatHeader));
	EXPECT_EQ(8U, sizeof(OatMethodOffsets));
	EXPECT_EQ(24U, sizeof(OatQuickMethodHeader));
	EXPECT_EQ(78 * GetInstructionSetPointerSize(kRuntimeISA), sizeof(QuickEntryPoints));
	}

	TEST_F(OatTest, OatHeaderIsValid) {
	InstructionSet instruction_set = kX86;
	InstructionSetFeatures instruction_set_features;
	std::vector<const DexFile*> dex_files;
	uint32_t image_file_location_oat_checksum = 0;
	uint32_t image_file_location_oat_begin = 0;
	const std::string image_file_location;
	OatHeader oat_header(instruction_set,
	instruction_set_features,
	&dex_files,
	image_file_location_oat_checksum,
	image_file_location_oat_begin,
	image_file_location);
	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