oat_test.cc revision 8d31bbd3d6536de12bc20e3d29cfe03fe848f9da
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "compiler/oat_writer.h" 18#include "mirror/art_method-inl.h" 19#include "mirror/class-inl.h" 20#include "mirror/object_array-inl.h" 21#include "mirror/object-inl.h" 22#include "oat_file.h" 23#include "vector_output_stream.h" 24 25#include "common_test.h" 26 27namespace art { 28 29class OatTest : public CommonTest { 30 protected: 31 void CheckMethod(mirror::ArtMethod* method, 32 const OatFile::OatMethod& oat_method, 33 const DexFile* dex_file) 34 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 35 const CompiledMethod* compiled_method = 36 compiler_driver_->GetCompiledMethod(MethodReference(dex_file, 37 method->GetDexMethodIndex())); 38 39 if (compiled_method == NULL) { 40 EXPECT_TRUE(oat_method.GetCode() == NULL) << PrettyMethod(method) << " " 41 << oat_method.GetCode(); 42#if !defined(ART_USE_PORTABLE_COMPILER) 43 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), static_cast<uint32_t>(kStackAlignment)); 44 EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U); 45 EXPECT_EQ(oat_method.GetFpSpillMask(), 0U); 46#endif 47 } else { 48 const void* oat_code = oat_method.GetCode(); 49 EXPECT_TRUE(oat_code != NULL) << PrettyMethod(method); 50 uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(oat_code), 2); 51 oat_code = reinterpret_cast<const void*>(oat_code_aligned); 52 53 const std::vector<uint8_t>& code = compiled_method->GetCode(); 54 size_t code_size = code.size() * sizeof(code[0]); 55 EXPECT_EQ(0, memcmp(oat_code, &code[0], code_size)) 56 << PrettyMethod(method) << " " << code_size; 57 CHECK_EQ(0, memcmp(oat_code, &code[0], code_size)); 58#if !defined(ART_USE_PORTABLE_COMPILER) 59 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes()); 60 EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask()); 61 EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask()); 62#endif 63 } 64 } 65}; 66 67TEST_F(OatTest, WriteRead) { 68 const bool compile = false; // DISABLED_ due to the time to compile libcore 69 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 70 71 // TODO: make selectable 72#if defined(ART_USE_PORTABLE_COMPILER) 73 CompilerBackend compiler_backend = kPortable; 74#else 75 CompilerBackend compiler_backend = kQuick; 76#endif 77 InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86; 78 compiler_driver_.reset(new CompilerDriver(compiler_backend, insn_set, false, NULL, 2, true)); 79 jobject class_loader = NULL; 80 if (compile) { 81 base::TimingLogger timings("OatTest::WriteRead", false, false); 82 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 83 } 84 85 ScopedObjectAccess soa(Thread::Current()); 86 ScratchFile tmp; 87 OatWriter oat_writer(class_linker->GetBootClassPath(), 88 42U, 89 4096U, 90 "lue.art", 91 compiler_driver_.get()); 92 bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(), 93 !kIsTargetBuild, 94 class_linker->GetBootClassPath(), 95 oat_writer, 96 tmp.GetFile()); 97 ASSERT_TRUE(success); 98 99 if (compile) { // OatWriter strips the code, regenerate to compare 100 base::TimingLogger timings("CommonTest::WriteRead", false, false); 101 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 102 } 103 std::string error_msg; 104 UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false, 105 &error_msg)); 106 ASSERT_TRUE(oat_file.get() != nullptr) << error_msg; 107 const OatHeader& oat_header = oat_file->GetOatHeader(); 108 ASSERT_TRUE(oat_header.IsValid()); 109 ASSERT_EQ(1U, oat_header.GetDexFileCount()); // core 110 ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); 111 ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); 112 ASSERT_EQ("lue.art", oat_header.GetImageFileLocation()); 113 114 const DexFile* dex_file = java_lang_dex_file_; 115 uint32_t dex_file_checksum = dex_file->GetLocationChecksum(); 116 const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation().c_str(), 117 &dex_file_checksum); 118 ASSERT_TRUE(oat_dex_file != nullptr); 119 CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); 120 for (size_t i = 0; i < dex_file->NumClassDefs(); i++) { 121 const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 122 const byte* class_data = dex_file->GetClassData(class_def); 123 size_t num_virtual_methods =0; 124 if (class_data != NULL) { 125 ClassDataItemIterator it(*dex_file, class_data); 126 num_virtual_methods = it.NumVirtualMethods(); 127 } 128 const char* descriptor = dex_file->GetClassDescriptor(class_def); 129 130 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i)); 131 132 mirror::Class* klass = class_linker->FindClass(descriptor, NULL); 133 134 size_t method_index = 0; 135 for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) { 136 CheckMethod(klass->GetDirectMethod(i), 137 oat_class->GetOatMethod(method_index), dex_file); 138 } 139 for (size_t i = 0; i < num_virtual_methods; i++, method_index++) { 140 CheckMethod(klass->GetVirtualMethod(i), 141 oat_class->GetOatMethod(method_index), dex_file); 142 } 143 } 144} 145 146TEST_F(OatTest, OatHeaderSizeCheck) { 147 // If this test is failing and you have to update these constants, 148 // it is time to update OatHeader::kOatVersion 149 EXPECT_EQ(64U, sizeof(OatHeader)); 150 EXPECT_EQ(28U, sizeof(OatMethodOffsets)); 151} 152 153TEST_F(OatTest, OatHeaderIsValid) { 154 InstructionSet instruction_set = kX86; 155 std::vector<const DexFile*> dex_files; 156 uint32_t image_file_location_oat_checksum = 0; 157 uint32_t image_file_location_oat_begin = 0; 158 const std::string image_file_location; 159 OatHeader oat_header(instruction_set, 160 &dex_files, 161 image_file_location_oat_checksum, 162 image_file_location_oat_begin, 163 image_file_location); 164 ASSERT_TRUE(oat_header.IsValid()); 165 166 char* magic = const_cast<char*>(oat_header.GetMagic()); 167 strcpy(magic, ""); // bad magic 168 ASSERT_FALSE(oat_header.IsValid()); 169 strcpy(magic, "oat\n000"); // bad version 170 ASSERT_FALSE(oat_header.IsValid()); 171} 172 173} // namespace art 174