1959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle/* 2959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * Copyright (C) 2014 The Android Open Source Project 3959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * 4959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * Licensed under the Apache License, Version 2.0 (the "License"); 5959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * you may not use this file except in compliance with the License. 6959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * You may obtain a copy of the License at 7959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * 8959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * http://www.apache.org/licenses/LICENSE-2.0 9959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * 10959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * Unless required by applicable law or agreed to in writing, software 11959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * distributed under the License is distributed on an "AS IS" BASIS, 12959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * See the License for the specific language governing permissions and 14959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle * limitations under the License. 15959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle */ 16959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 17959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kylepackage dexfuzz.rawdex.formats; 18959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 19959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyleimport dexfuzz.rawdex.DexRandomAccessFile; 20959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyleimport dexfuzz.rawdex.Instruction; 21959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyleimport dexfuzz.rawdex.OpcodeInfo; 22959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 23959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyleimport java.io.IOException; 24959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 25959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kylepublic class Format22cs extends Format2 implements ContainsVRegs, ContainsPoolIndex { 26959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 27959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public void writeToFile(DexRandomAccessFile file, Instruction insn) throws IOException { 28959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle throw new Error("Did not expect to have to write a 22cs instruction!"); 29959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle // If for some reason 22cs instructions were in DEX files in the future, uncomment: 30959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle //file.writeByte((byte) insn.info.value); 31959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle //file.writeByte((byte) (insn.vreg_a | (insn.vreg_b << 4))); 32959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle //file.writeUShort((short) insn.vreg_c); 33959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle //return; 34959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 35959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 36959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 37959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public long getA(byte[] raw) throws IOException { 38959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return RawInsnHelper.getUnsignedLowNibbleFromByte(raw, 1); 39959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 40959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 41959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 42959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public long getB(byte[] raw) throws IOException { 43959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return RawInsnHelper.getUnsignedHighNibbleFromByte(raw, 1); 44959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 45959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 46959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 47959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public long getC(byte[] raw) throws IOException { 48959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return RawInsnHelper.getUnsignedShortFromTwoBytes(raw, 2); 49959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 50959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 51959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 52959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public int getVRegCount() { 53959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return 2; 54959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 55959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 56959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 57959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public int getPoolIndex(Instruction insn) { 58959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return (int) insn.vregC; 59959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 60959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 61959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 62959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public void setPoolIndex(Instruction insn, int poolIndex) { 63959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle insn.vregC = poolIndex; 64959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 65959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle 66959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle @Override 67959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle public PoolIndexKind getPoolIndexKind(OpcodeInfo info) { 68959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle // This should technically be a byte offset, but we should never encounter 69959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle // this format during DEX mutation anyway. (see writeToFile()) 70959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle return PoolIndexKind.Field; 71959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle } 72959ffdf65f280ee90b7944a8dd610564e7f99e69Stephen Kyle} 73