oat_test.cc revision 88474b416eb257078e590bf9bc7957cee604a186
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 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 71 72 // TODO: make selectable 73#if defined(ART_USE_PORTABLE_COMPILER) 74 CompilerBackend compiler_backend = kPortable; 75#else 76 CompilerBackend compiler_backend = kQuick; 77#endif 78 InstructionSet insn_set = kIsTargetBuild ? kThumb2 : kX86; 79 compiler_driver_.reset(new CompilerDriver(compiler_backend, insn_set, false, NULL, 2, true)); 80 jobject class_loader = NULL; 81 if (kCompile) { 82 base::TimingLogger timings("OatTest::WriteRead", false, false); 83 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 84 } 85 86 ScopedObjectAccess soa(Thread::Current()); 87 ScratchFile tmp; 88 OatWriter oat_writer(class_linker->GetBootClassPath(), 89 42U, 90 4096U, 91 "lue.art", 92 compiler_driver_.get()); 93 bool success = compiler_driver_->WriteElf(GetTestAndroidRoot(), 94 !kIsTargetBuild, 95 class_linker->GetBootClassPath(), 96 oat_writer, 97 tmp.GetFile()); 98 ASSERT_TRUE(success); 99 100 if (kCompile) { // OatWriter strips the code, regenerate to compare 101 base::TimingLogger timings("CommonTest::WriteRead", false, false); 102 compiler_driver_->CompileAll(class_loader, class_linker->GetBootClassPath(), timings); 103 } 104 std::string error_msg; 105 UniquePtr<OatFile> oat_file(OatFile::Open(tmp.GetFilename(), tmp.GetFilename(), NULL, false, 106 &error_msg)); 107 ASSERT_TRUE(oat_file.get() != nullptr) << error_msg; 108 const OatHeader& oat_header = oat_file->GetOatHeader(); 109 ASSERT_TRUE(oat_header.IsValid()); 110 ASSERT_EQ(1U, oat_header.GetDexFileCount()); // core 111 ASSERT_EQ(42U, oat_header.GetImageFileLocationOatChecksum()); 112 ASSERT_EQ(4096U, oat_header.GetImageFileLocationOatDataBegin()); 113 ASSERT_EQ("lue.art", oat_header.GetImageFileLocation()); 114 115 const DexFile* dex_file = java_lang_dex_file_; 116 uint32_t dex_file_checksum = dex_file->GetLocationChecksum(); 117 const OatFile::OatDexFile* oat_dex_file = oat_file->GetOatDexFile(dex_file->GetLocation().c_str(), 118 &dex_file_checksum); 119 ASSERT_TRUE(oat_dex_file != nullptr); 120 CHECK_EQ(dex_file->GetLocationChecksum(), oat_dex_file->GetDexFileLocationChecksum()); 121 for (size_t i = 0; i < dex_file->NumClassDefs(); i++) { 122 const DexFile::ClassDef& class_def = dex_file->GetClassDef(i); 123 const byte* class_data = dex_file->GetClassData(class_def); 124 size_t num_virtual_methods = 0; 125 if (class_data != NULL) { 126 ClassDataItemIterator it(*dex_file, class_data); 127 num_virtual_methods = it.NumVirtualMethods(); 128 } 129 const char* descriptor = dex_file->GetClassDescriptor(class_def); 130 mirror::Class* klass = class_linker->FindClass(descriptor, NULL); 131 132 UniquePtr<const OatFile::OatClass> oat_class(oat_dex_file->GetOatClass(i)); 133 CHECK_EQ(mirror::Class::Status::kStatusNotReady, oat_class->GetStatus()) << descriptor; 134 CHECK_EQ(kCompile ? OatClassType::kOatClassAllCompiled : OatClassType::kOatClassNoneCompiled, 135 oat_class->GetType()) << descriptor; 136 137 size_t method_index = 0; 138 for (size_t i = 0; i < klass->NumDirectMethods(); i++, method_index++) { 139 CheckMethod(klass->GetDirectMethod(i), 140 oat_class->GetOatMethod(method_index), dex_file); 141 } 142 for (size_t i = 0; i < num_virtual_methods; i++, method_index++) { 143 CheckMethod(klass->GetVirtualMethod(i), 144 oat_class->GetOatMethod(method_index), dex_file); 145 } 146 } 147} 148 149TEST_F(OatTest, OatHeaderSizeCheck) { 150 // If this test is failing and you have to update these constants, 151 // it is time to update OatHeader::kOatVersion 152 EXPECT_EQ(72U, sizeof(OatHeader)); 153 EXPECT_EQ(28U, sizeof(OatMethodOffsets)); 154} 155 156TEST_F(OatTest, OatHeaderIsValid) { 157 InstructionSet instruction_set = kX86; 158 std::vector<const DexFile*> dex_files; 159 uint32_t image_file_location_oat_checksum = 0; 160 uint32_t image_file_location_oat_begin = 0; 161 const std::string image_file_location; 162 OatHeader oat_header(instruction_set, 163 &dex_files, 164 image_file_location_oat_checksum, 165 image_file_location_oat_begin, 166 image_file_location); 167 ASSERT_TRUE(oat_header.IsValid()); 168 169 char* magic = const_cast<char*>(oat_header.GetMagic()); 170 strcpy(magic, ""); // bad magic 171 ASSERT_FALSE(oat_header.IsValid()); 172 strcpy(magic, "oat\n000"); // bad version 173 ASSERT_FALSE(oat_header.IsValid()); 174} 175 176} // namespace art 177