oat_test.cc revision a2eca52f55e545c6f90807ce8bbf778495c4a6f6
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 "common_compiler_test.h" 18#include "compiler/compiler.h" 19#include "compiler/oat_writer.h" 20#include "entrypoints/quick/quick_entrypoints.h" 21#include "mirror/art_method-inl.h" 22#include "mirror/class-inl.h" 23#include "mirror/object-inl.h" 24#include "mirror/object_array-inl.h" 25#include "oat_file-inl.h" 26#include "vector_output_stream.h" 27 28namespace art { 29 30class OatTest : public CommonCompilerTest { 31 protected: 32 static const bool kCompile = false; // DISABLED_ due to the time to compile libcore 33 34 void CheckMethod(mirror::ArtMethod* method, 35 const OatFile::OatMethod& oat_method, 36 const DexFile* dex_file) 37 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 38 const CompiledMethod* compiled_method = 39 compiler_driver_->GetCompiledMethod(MethodReference(dex_file, 40 method->GetDexMethodIndex())); 41 42 if (compiled_method == NULL) { 43 EXPECT_TRUE(oat_method.GetQuickCode() == NULL) << PrettyMethod(method) << " " 44 << oat_method.GetQuickCode(); 45 EXPECT_TRUE(oat_method.GetPortableCode() == NULL) << PrettyMethod(method) << " " 46 << oat_method.GetPortableCode(); 47 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U); 48 EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U); 49 EXPECT_EQ(oat_method.GetFpSpillMask(), 0U); 50 } else { 51 const void* quick_oat_code = oat_method.GetQuickCode(); 52 if (quick_oat_code != nullptr) { 53 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), compiled_method->GetFrameSizeInBytes()); 54 EXPECT_EQ(oat_method.GetCoreSpillMask(), compiled_method->GetCoreSpillMask()); 55 EXPECT_EQ(oat_method.GetFpSpillMask(), compiled_method->GetFpSpillMask()); 56 uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(quick_oat_code), 2); 57 quick_oat_code = reinterpret_cast<const void*>(oat_code_aligned); 58 const std::vector<uint8_t>* quick_code = compiled_method->GetQuickCode(); 59 EXPECT_TRUE(quick_code != nullptr); 60 size_t code_size = quick_code->size() * sizeof(quick_code[0]); 61 EXPECT_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size)) 62 << PrettyMethod(method) << " " << code_size; 63 CHECK_EQ(0, memcmp(quick_oat_code, &quick_code[0], code_size)); 64 } else { 65 const void* portable_oat_code = oat_method.GetPortableCode(); 66 EXPECT_TRUE(portable_oat_code != nullptr) << PrettyMethod(method); 67 EXPECT_EQ(oat_method.GetFrameSizeInBytes(), 0U); 68 EXPECT_EQ(oat_method.GetCoreSpillMask(), 0U); 69 EXPECT_EQ(oat_method.GetFpSpillMask(), 0U); 70 uintptr_t oat_code_aligned = RoundDown(reinterpret_cast<uintptr_t>(portable_oat_code), 2); 71 portable_oat_code = reinterpret_cast<const void*>(oat_code_aligned); 72 const std::vector<uint8_t>* portable_code = compiled_method->GetPortableCode(); 73 EXPECT_TRUE(portable_code != nullptr); 74 size_t code_size = portable_code->size() * sizeof(portable_code[0]); 75 EXPECT_EQ(0, memcmp(quick_oat_code, &portable_code[0], code_size)) 76 << PrettyMethod(method) << " " << code_size; 77 CHECK_EQ(0, memcmp(quick_oat_code, &portable_code[0], code_size)); 78 } 79 } 80 } 81}; 82 83TEST_F(OatTest, WriteRead) { 84 TimingLogger timings("OatTest::WriteRead", false, false); 85 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 86 87 // TODO: make selectable. 88 Compiler::Kind compiler_kind = kUsePortableCompiler 89 ? Compiler::kPortable 90 : Compiler::kQuick; 91 InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86; 92 93 InstructionSetFeatures insn_features; 94 compiler_options_.reset(new CompilerOptions); 95 verification_results_.reset(new VerificationResults(compiler_options_.get())); 96 method_inliner_map_.reset(new DexFileToMethodInlinerMap); 97 callbacks_.reset(new CompilerCallbacksImpl(verification_results_.get(), 98 method_inliner_map_.get())); 99 timer_.reset(new CumulativeLogger("Compilation times")); 100 compiler_driver_.reset(new CompilerDriver(compiler_options_.get(), 101 verification_results_.get(), 102 method_inliner_map_.get(), 103 compiler_kind, insn_set, 104 insn_features, false, NULL, 2, true, true, 105 timer_.get())); 106 jobject class_loader = NULL; 107 if (kCompile) { 108 TimingLogger timings("OatTest::WriteRead", false, false); 109 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings); 110 } 111 112 ScopedObjectAccess soa(Thread::Current()); 113 ScratchFile tmp; 114 OatWriter oat_writer(class_linker->GetBootClassPath(), 115 42U, 116 4096U, 117 "lue.art", 118 compiler_driver_.get(), 119 &timings); 120 bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(), 121 !kIsTargetBuild, 122 class_linker->GetBootClassPath(), 123 &oat_writer, 124 tmp.GetFile()); 125 ASSERT_TRUE(success); 126 127 if (kCompile) { // OatWriter strips the code, regenerate to compare 128 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), &timings); 129 } 130 std::string error_msg; 131 UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false, 132 &error_msg)); 133 ASSERT_TRUE(oat_file.get() != nullptr) << error_msg; 134 const OatHeader& oat_header = oat_file->GetOatHeader(); 135 ASSERT_TRUE(oat_header.IsValid()); 136 ASSERT_EQ(1U, oat_header.GetDexFileCount()); // core 137 ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); 138 ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); 139 ASSERT_EQ("lue.art", oat_header.GetImageFileLocation()); 140 141 const DexFile* dex_file = java_lang_dex_file_; 142 uint32_t dex_file_checksum = dex_file->GetLocationChecksum(); 143 const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation().c_str(), 144 &dex_file_checksum); 145 ASSERT_TRUE(oat_dex_file != nullptr); 146 CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); 147 for (size_t i = 0; i < dex_file->NumClassDefs(); i++) { 148 const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 149 const byte* class_data = dex_file->GetClassData(class_def); 150 size_t num_virtual_methods = 0; 151 if (class_data != NULL) { 152 ClassDataItemIterator it(*dex_file, class_data); 153 num_virtual_methods = it.NumVirtualMethods(); 154 } 155 const char* descriptor = dex_file->GetClassDescriptor(class_def); 156 StackHandleScope<1> hs(soa.Self()); 157 auto loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 158 mirror::Class* klass = class_linker->FindClass(soa.Self(), descriptor, loader); 159 160 const OatFile::OatClass oat_class = oat_dex_file->GetOatClass(i); 161 CHECK_EQ(mirror::Class::Status::kStatusNotReady, oat_class.GetStatus()) << descriptor; 162 CHECK_EQ(kCompile ? OatClassType::kOatClassAllCompiled : OatClassType::kOatClassNoneCompiled, 163 oat_class.GetType()) << descriptor; 164 165 size_t method_index = 0; 166 for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) { 167 CheckMethod(klass->GetDirectMethod(i), 168 oat_class.GetOatMethod(method_index), dex_file); 169 } 170 for (size_t i = 0; i < num_virtual_methods; i++, method_index++) { 171 CheckMethod(klass->GetVirtualMethod(i), 172 oat_class.GetOatMethod(method_index), dex_file); 173 } 174 } 175} 176 177TEST_F(OatTest, OatHeaderSizeCheck) { 178 // If this test is failing and you have to update these constants, 179 // it is time to update OatHeader::kOatVersion 180 EXPECT_EQ(80U, sizeof(OatHeader)); 181 EXPECT_EQ(8U, sizeof(OatMethodOffsets)); 182 EXPECT_EQ(24U, sizeof(OatQuickMethodHeader)); 183 EXPECT_EQ(80 * GetInstructionSetPointerSize(kRuntimeISA), sizeof(QuickEntryPoints)); 184} 185 186TEST_F(OatTest, OatHeaderIsValid) { 187 InstructionSet instruction_set = kX86; 188 InstructionSetFeatures instruction_set_features; 189 std::vector<const DexFile*> dex_files; 190 uint32_t image_file_location_oat_checksum = 0; 191 uint32_t image_file_location_oat_begin = 0; 192 const std::string image_file_location; 193 OatHeader oat_header(instruction_set, 194 instruction_set_features, 195 &dex_files, 196 image_file_location_oat_checksum, 197 image_file_location_oat_begin, 198 image_file_location); 199 ASSERT_TRUE(oat_header.IsValid()); 200 201 char* magic = const_cast<char*>(oat_header.GetMagic()); 202 strcpy(magic, ""); // bad magic 203 ASSERT_FALSE(oat_header.IsValid()); 204 strcpy(magic, "oat\n000"); // bad version 205 ASSERT_FALSE(oat_header.IsValid()); 206} 207 208} // namespace art 209