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 27 namespace art { 28 29 class 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 67 TEST_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 UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false)); 104 ASSERT_TRUE(oat_file.get() != NULL); 105 const OatHeader& oat_header = oat_file->GetOatHeader(); 106 ASSERT_TRUE(oat_header.IsValid()); 107 ASSERT_EQ(2U, oat_header.GetDexFileCount()); // core and conscrypt 108 ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); 109 ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); 110 ASSERT_EQ("lue.art", oat_header.GetImageFileLocation()); 111 112 const DexFile* dex_file = java_lang_dex_file_; 113 uint32_t dex_file_checksum = dex_file->GetLocationChecksum(); 114 const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation(), 115 &dex_file_checksum); 116 CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); 117 for (size_t i = 0; i < dex_file->NumClassDefs(); i++) { 118 const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 119 const byte* class_data = dex_file->GetClassData(class_def); 120 size_t num_virtual_methods =0; 121 if (class_data != NULL) { 122 ClassDataItemIterator it(*dex_file, class_data); 123 num_virtual_methods = it.NumVirtualMethods(); 124 } 125 const char* descriptor = dex_file->GetClassDescriptor(class_def); 126 127 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i)); 128 129 mirror::Class* klass = class_linker->FindClass(descriptor, NULL); 130 131 size_t method_index = 0; 132 for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) { 133 CheckMethod(klass->GetDirectMethod(i), 134 oat_class->GetOatMethod(method_index), dex_file); 135 } 136 for (size_t i = 0; i < num_virtual_methods; i++, method_index++) { 137 CheckMethod(klass->GetVirtualMethod(i), 138 oat_class->GetOatMethod(method_index), dex_file); 139 } 140 } 141 } 142 143 TEST_F(OatTest, OatHeaderSizeCheck) { 144 // If this test is failing and you have to update these constants, 145 // it is time to update OatHeader::kOatVersion 146 EXPECT_EQ(64U, sizeof(OatHeader)); 147 EXPECT_EQ(28U, sizeof(OatMethodOffsets)); 148 } 149 150 TEST_F(OatTest, OatHeaderIsValid) { 151 InstructionSet instruction_set = kX86; 152 std::vector<const DexFile*> dex_files; 153 uint32_t image_file_location_oat_checksum = 0; 154 uint32_t image_file_location_oat_begin = 0; 155 const std::string image_file_location; 156 OatHeader oat_header(instruction_set, 157 &dex_files, 158 image_file_location_oat_checksum, 159 image_file_location_oat_begin, 160 image_file_location); 161 ASSERT_TRUE(oat_header.IsValid()); 162 163 char* magic = const_cast<char*>(oat_header.GetMagic()); 164 strcpy(magic, ""); // bad magic 165 ASSERT_FALSE(oat_header.IsValid()); 166 strcpy(magic, "oat\n000"); // bad version 167 ASSERT_FALSE(oat_header.IsValid()); 168 } 169 170 } // namespace art 171
