src/oat_test.cc - platform/art - Gitiles

 /*
  * 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 "mirror/abstract_method-inl.h"
 #include "mirror/class-inl.h"
 #include "mirror/object_array-inl.h"
 #include "oat_file.h"
 #include "oat_writer.h"
 #include "vector_output_stream.h"

 #include "common_test.h"

 namespace art {

 class OatTest : public CommonTest {
  protected:
   void CheckMethod(mirror::AbstractMethod* method,
                    const OatFile::OatMethod& oat_method,
                    const DexFile* dex_file)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     const CompiledMethod* compiled_method =
         compiler_->GetCompiledMethod(Compiler::MethodReference(dex_file,
                                                                method->GetDexMethodIndex()));

     if (compiled_method == NULL) {
       EXPECT_TRUE(oat_method.GetCode() == NULL) << PrettyMethod(method) << " "
                                                 << oat_method.GetCode();
 #if !defined(ART_USE_LLVM_COMPILER)
       EXPECT_EQ(oat_method.GetFrameSizeInBytes(), static_cast<uint32_t>(kStackAlignment));
       EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
       EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
 #endif
     } else {
       const void* oat_code = oat_method.GetCode();
       EXPECT_TRUE(oat_code != NULL) << PrettyMethod(method);
       uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(oat_code), 2);
       oat_code = reinterpret_cast<const void*>(oat_code_aligned);

       const std::vector<uint8_t>& code = compiled_method->GetCode();
       size_t code_size = code.size() * sizeof(code[0]);
       EXPECT_EQ(0, memcmp(oat_code, &code[0], code_size))
           << PrettyMethod(method) << " " << code_size;
       CHECK_EQ(0, memcmp(oat_code, &code[0], code_size));
 #if !defined(ART_USE_LLVM_COMPILER)
       EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes());
       EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask());
       EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask());
 #endif
     }
   }
 };

 TEST_F(OatTest, WriteRead) {
   const bool compile = false;  // DISABLED_ due to the time to compile libcore
   ClassLinker* class_linker = Runtime::Current()->GetClassLinker();

   jobject class_loader = NULL;
   if (compile) {
     // TODO: make selectable
 #if defined(ART_USE_PORTABLE_COMPILER)
     CompilerBackend compiler_backend = kPortable;
 #elif defined(ART_USE_LLVM_COMPILER)
     CompilerBackend compiler_backend = kIceland; // TODO: remove
 #else
     CompilerBackend compiler_backend = kQuick;
 #endif
     compiler_.reset(new Compiler(compiler_backend, kThumb2, false, 2, false, NULL, true, true));
     compiler_->CompileAll(class_loader, class_linker->GetBootClassPath());
   }

   ScopedObjectAccess soa(Thread::Current());
   ScratchFile tmp;
   std::vector<uint8_t> oat_contents;
   VectorOutputStream output_stream(tmp.GetFilename(), oat_contents);
   bool success_oat = OatWriter::Create(output_stream,
                                        class_linker->GetBootClassPath(),
                                        42U,
                                        4096U,
                                        "lue.art",
                                        *compiler_.get());
   ASSERT_TRUE(success_oat);
   bool success_elf = compiler_->WriteElf(oat_contents, tmp.GetFile());
   ASSERT_TRUE(success_elf);

   if (compile) {  // OatWriter strips the code, regenerate to compare
     compiler_->CompileAll(class_loader, class_linker->GetBootClassPath());
   }
   UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL));
   ASSERT_TRUE(oat_file.get() != NULL);
   const OatHeader& oat_header = oat_file->GetOatHeader();
   ASSERT_TRUE(oat_header.IsValid());
   ASSERT_EQ(1U, oat_header.GetDexFileCount());
   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_;
   const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation());
   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);

     UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i));

     mirror::Class* klass = class_linker->FindClass(descriptor, NULL);

     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(36U, sizeof(OatHeader));
 #if !defined(ART_USE_LLVM_COMPILER)
   EXPECT_EQ(32U, sizeof(OatMethodOffsets));
 #else
   // ART-LLVM has a extra 4 bytes field: proxy_stub_offset_
   EXPECT_EQ(36U, sizeof(OatMethodOffsets));
 #endif
 }

 TEST_F(OatTest, OatHeaderIsValid) {
     InstructionSet instruction_set = kX86;
     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,
                          &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 "mirror/abstract_method-inl.h"
	#include "mirror/class-inl.h"
	#include "mirror/object_array-inl.h"
	#include "oat_file.h"
	#include "oat_writer.h"
	#include "vector_output_stream.h"

	#include "common_test.h"

	namespace art {

	class OatTest : public CommonTest {
	protected:
	void CheckMethod(mirror::AbstractMethod* method,
	const OatFile::OatMethod& oat_method,
	const DexFile* dex_file)
	SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
	const CompiledMethod* compiled_method =
	compiler_->GetCompiledMethod(Compiler::MethodReference(dex_file,
	method->GetDexMethodIndex()));

	if (compiled_method == NULL) {
	EXPECT_TRUE(oat_method.GetCode() == NULL) << PrettyMethod(method) << " "
	<< oat_method.GetCode();
	#if !defined(ART_USE_LLVM_COMPILER)
	EXPECT_EQ(oat_method.GetFrameSizeInBytes(), static_cast<uint32_t>(kStackAlignment));
	EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U);
	EXPECT_EQ(oat_method.GetFpSpillMask(), 0U);
	#endif
	} else {
	const void* oat_code = oat_method.GetCode();
	EXPECT_TRUE(oat_code != NULL) << PrettyMethod(method);
	uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(oat_code), 2);
	oat_code = reinterpret_cast<const void*>(oat_code_aligned);

	const std::vector<uint8_t>& code = compiled_method->GetCode();
	size_t code_size = code.size() * sizeof(code[0]);
	EXPECT_EQ(0, memcmp(oat_code, &code[0], code_size))
	<< PrettyMethod(method) << " " << code_size;
	CHECK_EQ(0, memcmp(oat_code, &code[0], code_size));
	#if !defined(ART_USE_LLVM_COMPILER)
	EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes());
	EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask());
	EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask());
	#endif
	}
	}
	};

	TEST_F(OatTest, WriteRead) {
	const bool compile = false; // DISABLED_ due to the time to compile libcore
	ClassLinker* class_linker = Runtime::Current()->GetClassLinker();

	jobject class_loader = NULL;
	if (compile) {
	// TODO: make selectable
	#if defined(ART_USE_PORTABLE_COMPILER)
	CompilerBackend compiler_backend = kPortable;
	#elif defined(ART_USE_LLVM_COMPILER)
	CompilerBackend compiler_backend = kIceland; // TODO: remove
	#else
	CompilerBackend compiler_backend = kQuick;
	#endif
	compiler_.reset(new Compiler(compiler_backend, kThumb2, false, 2, false, NULL, true, true));
	compiler_->CompileAll(class_loader, class_linker->GetBootClassPath());
	}

	ScopedObjectAccess soa(Thread::Current());
	ScratchFile tmp;
	std::vector<uint8_t> oat_contents;
	VectorOutputStream output_stream(tmp.GetFilename(), oat_contents);
	bool success_oat = OatWriter::Create(output_stream,
	class_linker->GetBootClassPath(),
	42U,
	4096U,
	"lue.art",
	*compiler_.get());
	ASSERT_TRUE(success_oat);
	bool success_elf = compiler_->WriteElf(oat_contents, tmp.GetFile());
	ASSERT_TRUE(success_elf);

	if (compile) { // OatWriter strips the code, regenerate to compare
	compiler_->CompileAll(class_loader, class_linker->GetBootClassPath());
	}
	UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL));
	ASSERT_TRUE(oat_file.get() != NULL);
	const OatHeader& oat_header = oat_file->GetOatHeader();
	ASSERT_TRUE(oat_header.IsValid());
	ASSERT_EQ(1U, oat_header.GetDexFileCount());
	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_;
	const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation());
	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);

	UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i));

	mirror::Class* klass = class_linker->FindClass(descriptor, NULL);

	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(36U, sizeof(OatHeader));
	#if !defined(ART_USE_LLVM_COMPILER)
	EXPECT_EQ(32U, sizeof(OatMethodOffsets));
	#else
	// ART-LLVM has a extra 4 bytes field: proxy_stub_offset_
	EXPECT_EQ(36U, sizeof(OatMethodOffsets));
	#endif
	}

	TEST_F(OatTest, OatHeaderIsValid) {
	InstructionSet instruction_set = kX86;
	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,
	&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