1 /* Copyright (C) 2017 The Android Open Source Project 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This file implements interfaces from the file jvmti.h. This implementation 5 * is licensed under the same terms as the file jvmti.h. The 6 * copyright and license information for the file jvmti.h follows. 7 * 8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 10 * 11 * This code is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License version 2 only, as 13 * published by the Free Software Foundation. Oracle designates this 14 * particular file as subject to the "Classpath" exception as provided 15 * by Oracle in the LICENSE file that accompanied this code. 16 * 17 * This code is distributed in the hope that it will be useful, but WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 20 * version 2 for more details (a copy is included in the LICENSE file that 21 * accompanied this code). 22 * 23 * You should have received a copy of the GNU General Public License version 24 * 2 along with this work; if not, write to the Free Software Foundation, 25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 26 * 27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 28 * or visit www.oracle.com if you need additional information or have any 29 * questions. 30 */ 31 32 #ifndef ART_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_ 33 #define ART_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_ 34 35 #include <memory> 36 #include <vector> 37 38 #include "jni.h" 39 #include "jvmti.h" 40 41 #include "base/mutex.h" 42 #include "dex/dex_file.h" 43 44 namespace openjdkjvmti { 45 46 // A holder for a DexFile that has been 'fixed up' to ensure it is fully compliant with the 47 // published standard (no internal/quick opcodes, all fields are the defined values, etc). This is 48 // used to ensure that agents get a consistent dex file regardless of what version of android they 49 // are running on. 50 class FixedUpDexFile { 51 public: 52 static std::unique_ptr<FixedUpDexFile> Create(const art::DexFile& original, 53 const char* descriptor); 54 GetDexFile()55 const art::DexFile& GetDexFile() { 56 return *dex_file_; 57 } 58 Begin()59 const unsigned char* Begin() { 60 return data_.data(); 61 } 62 Size()63 size_t Size() { 64 return data_.size(); 65 } 66 67 private: FixedUpDexFile(std::unique_ptr<const art::DexFile> fixed_up_dex_file,std::vector<unsigned char> data)68 explicit FixedUpDexFile(std::unique_ptr<const art::DexFile> fixed_up_dex_file, 69 std::vector<unsigned char> data) 70 : dex_file_(std::move(fixed_up_dex_file)), 71 data_(std::move(data)) {} 72 73 // the fixed up DexFile 74 std::unique_ptr<const art::DexFile> dex_file_; 75 // The backing data for dex_file_. 76 const std::vector<unsigned char> data_; 77 78 DISALLOW_COPY_AND_ASSIGN(FixedUpDexFile); 79 }; 80 81 } // namespace openjdkjvmti 82 83 #endif // ART_OPENJDKJVMTI_FIXED_UP_DEX_FILE_H_ 84