oat_test.cc revision c7f832061fea59fd6abd125f26c8ca1faec695a5
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 static const bool kCompile = false; // DISABLED_ due to the time to compile libcore 32 33 void CheckMethod(mirror::ArtMethod* method, 34 const OatFile::OatMethod& oat_method, 35 const DexFile* dex_file) 36 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 37 const CompiledMethod* compiled_method = 38 compiler_driver_->GetCompiledMethod(MethodReference(dex_file, 39 method->GetDexMethodIndex())); 40 41 if (compiled_method == NULL) { 42 EXPECT_TRUE(oat_method.GetCode() == NULL) << PrettyMethod(method) << " " 43 << oat_method.GetCode(); 44#if !defined(ART_USE_PORTABLE_COMPILER) 45 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), kCompile ? kStackAlignment : 0); 46 EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U); 47 EXPECT_EQ(oat_method.GetFpSpillMask(), 0U); 48#endif 49 } else { 50 const void* oat_code = oat_method.GetCode(); 51 EXPECT_TRUE(oat_code != NULL) << PrettyMethod(method); 52 uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(oat_code), 2); 53 oat_code = reinterpret_cast<const void*>(oat_code_aligned); 54 55 const std::vector<uint8_t>& code = compiled_method->GetCode(); 56 size_t code_size = code.size() * sizeof(code[0]); 57 EXPECT_EQ(0, memcmp(oat_code, &code[0], code_size)) 58 << PrettyMethod(method) << " " << code_size; 59 CHECK_EQ(0, memcmp(oat_code, &code[0], code_size)); 60#if !defined(ART_USE_PORTABLE_COMPILER) 61 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes()); 62 EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask()); 63 EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask()); 64#endif 65 } 66 } 67}; 68 69TEST_F(OatTest, WriteRead) { 70 TimingLogger timings("CommonTest::WriteRead", false, false); 71 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 72 73 // TODO: make selectable 74#if defined(ART_USE_PORTABLE_COMPILER) 75 CompilerBackend compiler_backend = kPortable; 76#else 77 CompilerBackend compiler_backend = kQuick; 78#endif 79 InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86; 80 81 InstructionSetFeatures insn_features; 82 verification_results_.reset(new VerificationResults); 83 method_inliner_map_.reset(compiler_backend == kQuick ? new DexFileToMethodInlinerMap : nullptr); 84 callbacks_.Reset(verification_results_.get(), method_inliner_map_.get()); 85 compiler_driver_.reset(new CompilerDriver(verification_results_.get(), 86 method_inliner_map_.get(), 87 compiler_backend, insn_set, 88 insn_features, false, NULL, 2, true)); 89 jobject class_loader = NULL; 90 if (kCompile) { 91 TimingLogger timings("OatTest::WriteRead", false, false); 92 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 93 } 94 95 ScopedObjectAccess soa(Thread::Current()); 96 ScratchFile tmp; 97 OatWriter oat_writer(class_linker->GetBootClassPath(), 98 42U, 99 4096U, 100 "lue.art", 101 compiler_driver_.get(), 102 &timings); 103 bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(), 104 !kIsTargetBuild, 105 class_linker->GetBootClassPath(), 106 oat_writer, 107 tmp.GetFile()); 108 ASSERT_TRUE(success); 109 110 if (kCompile) { // OatWriter strips the code, regenerate to compare 111 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 112 } 113 std::string error_msg; 114 UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false, 115 &error_msg)); 116 ASSERT_TRUE(oat_file.get() != nullptr) << error_msg; 117 const OatHeader& oat_header = oat_file->GetOatHeader(); 118 ASSERT_TRUE(oat_header.IsValid()); 119 ASSERT_EQ(1U, oat_header.GetDexFileCount()); // core 120 ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); 121 ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); 122 ASSERT_EQ("lue.art", oat_header.GetImageFileLocation()); 123 124 const DexFile* dex_file = java_lang_dex_file_; 125 uint32_t dex_file_checksum = dex_file->GetLocationChecksum(); 126 const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation().c_str(), 127 &dex_file_checksum); 128 ASSERT_TRUE(oat_dex_file != nullptr); 129 CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); 130 for (size_t i = 0; i < dex_file->NumClassDefs(); i++) { 131 const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 132 const byte* class_data = dex_file->GetClassData(class_def); 133 size_t num_virtual_methods = 0; 134 if (class_data != NULL) { 135 ClassDataItemIterator it(*dex_file, class_data); 136 num_virtual_methods = it.NumVirtualMethods(); 137 } 138 const char* descriptor = dex_file->GetClassDescriptor(class_def); 139 SirtRef<mirror::ClassLoader> loader(Thread::Current(), nullptr); 140 mirror::Class* klass = class_linker->FindClass(descriptor, loader); 141 142 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i)); 143 CHECK_EQ(mirror::Class::Status::kStatusNotReady, oat_class->GetStatus()) << descriptor; 144 CHECK_EQ(kCompile ? OatClassType::kOatClassAllCompiled : OatClassType::kOatClassNoneCompiled, 145 oat_class->GetType()) << descriptor; 146 147 size_t method_index = 0; 148 for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) { 149 CheckMethod(klass->GetDirectMethod(i), 150 oat_class->GetOatMethod(method_index), dex_file); 151 } 152 for (size_t i = 0; i < num_virtual_methods; i++, method_index++) { 153 CheckMethod(klass->GetVirtualMethod(i), 154 oat_class->GetOatMethod(method_index), dex_file); 155 } 156 } 157} 158 159TEST_F(OatTest, OatHeaderSizeCheck) { 160 // If this test is failing and you have to update these constants, 161 // it is time to update OatHeader::kOatVersion 162 EXPECT_EQ(76U, sizeof(OatHeader)); 163 EXPECT_EQ(28U, sizeof(OatMethodOffsets)); 164} 165 166TEST_F(OatTest, OatHeaderIsValid) { 167 InstructionSet instruction_set = kX86; 168 InstructionSetFeatures instruction_set_features; 169 std::vector<const DexFile*> dex_files; 170 uint32_t image_file_location_oat_checksum = 0; 171 uint32_t image_file_location_oat_begin = 0; 172 const std::string image_file_location; 173 OatHeader oat_header(instruction_set, 174 instruction_set_features, 175 &dex_files, 176 image_file_location_oat_checksum, 177 image_file_location_oat_begin, 178 image_file_location); 179 ASSERT_TRUE(oat_header.IsValid()); 180 181 char* magic = const_cast<char*>(oat_header.GetMagic()); 182 strcpy(magic, ""); // bad magic 183 ASSERT_FALSE(oat_header.IsValid()); 184 strcpy(magic, "oat\n000"); // bad version 185 ASSERT_FALSE(oat_header.IsValid()); 186} 187 188} // namespace art 189