smali2java And apktool

/* * Copyright 2013, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.jf.dexlib2.analysis; import com.google.common.base.Function; import com.google.common.collect.ImmutableList; import com.google.common.collect.Lists; import org.jf.dexlib2.AccessFlags; import org.jf.dexlib2.Opcode; import org.jf.dexlib2.iface.*; import org.jf.dexlib2.iface.instruction.*; import org.jf.dexlib2.iface.instruction.formats.*; import org.jf.dexlib2.iface.reference.FieldReference; import org.jf.dexlib2.iface.reference.MethodReference; import org.jf.dexlib2.iface.reference.Reference; import org.jf.dexlib2.iface.reference.TypeReference; import org.jf.dexlib2.immutable.instruction.*; import org.jf.dexlib2.immutable.reference.ImmutableFieldReference; import org.jf.dexlib2.immutable.reference.ImmutableMethodReference; import org.jf.dexlib2.util.MethodUtil; import org.jf.dexlib2.util.ReferenceUtil; import org.jf.dexlib2.util.TypeUtils; import org.jf.util.BitSetUtils; import org.jf.util.ExceptionWithContext; import org.jf.util.SparseArray; import javax.annotation.Nonnull; import javax.annotation.Nullable; import java.util.BitSet; import java.util.List; /** * The MethodAnalyzer performs several functions. It "analyzes" the instructions and infers the register types * for each register, it can deodex odexed instructions, and it can verify the bytecode. The analysis and verification * are done in two separate passes, because the analysis has to process instructions multiple times in some cases, and * there's no need to perform the verification multiple times, so we wait until the method is fully analyzed and then * verify it. * * Before calling the analyze() method, you must have initialized the ClassPath by calling * ClassPath.InitializeClassPath */ public class MethodAnalyzer { @Nonnull private final Method method; @Nonnull private final MethodImplementation methodImpl; private final int paramRegisterCount; @Nonnull private final ClassPath classPath; @Nullable private final InlineMethodResolver inlineResolver; // This contains all the AnalyzedInstruction instances, keyed by the code unit address of the instruction @Nonnull private final SparseArray<AnalyzedInstruction> analyzedInstructions = new SparseArray<AnalyzedInstruction>(0); // Which instructions have been analyzed, keyed by instruction index @Nonnull private final BitSet analyzedState; @Nullable private AnalysisException analysisException = null; //This is a dummy instruction that occurs immediately before the first real instruction. We can initialize the //register types for this instruction to the parameter types, in order to have them propagate to all of its //successors, e.g. the first real instruction, the first instructions in any exception handlers covering the first //instruction, etc. private final AnalyzedInstruction startOfMethod; public MethodAnalyzer(@Nonnull ClassPath classPath, @Nonnull Method method, @Nullable InlineMethodResolver inlineResolver) { this.classPath = classPath; this.inlineResolver = inlineResolver; this.method = method; MethodImplementation methodImpl = method.getImplementation(); if (methodImpl == null) { throw new IllegalArgumentException("The method has no implementation"); } this.methodImpl = methodImpl; //override AnalyzedInstruction and provide custom implementations of some of the methods, so that we don't //have to handle the case this special case of instruction being null, in the main class startOfMethod = new AnalyzedInstruction(null, -1, methodImpl.getRegisterCount()) { public boolean setsRegister() { return false; } @Override public boolean setsWideRegister() { return false; } @Override public boolean setsRegister(int registerNumber) { return false; } @Override public int getDestinationRegister() { assert false; return -1; } }; buildInstructionList(); analyzedState = new BitSet(analyzedInstructions.size()); paramRegisterCount = MethodUtil.getParameterRegisterCount(method); analyze(); } private void analyze() { Method method = this.method; MethodImplementation methodImpl = this.methodImpl; int totalRegisters = methodImpl.getRegisterCount(); int parameterRegisters = paramRegisterCount; int nonParameterRegisters = totalRegisters - parameterRegisters; //if this isn't a static method, determine which register is the "this" register and set the type to the //current class if (!MethodUtil.isStatic(method)) { int thisRegister = totalRegisters - parameterRegisters; //if this is a constructor, then set the "this" register to an uninitialized reference of the current class if (MethodUtil.isConstructor(method)) { setPostRegisterTypeAndPropagateChanges(startOfMethod, thisRegister, RegisterType.getRegisterType(RegisterType.UNINIT_THIS, classPath.getClass(method.getDefiningClass()))); } else { setPostRegisterTypeAndPropagateChanges(startOfMethod, thisRegister, RegisterType.getRegisterType(RegisterType.REFERENCE, classPath.getClass(method.getDefiningClass()))); } propagateParameterTypes(totalRegisters-parameterRegisters+1); } else { propagateParameterTypes(totalRegisters-parameterRegisters); } RegisterType uninit = RegisterType.getRegisterType(RegisterType.UNINIT, null); for (int i=0; i<nonParameterRegisters; i++) { setPostRegisterTypeAndPropagateChanges(startOfMethod, i, uninit); } BitSet instructionsToAnalyze = new BitSet(analyzedInstructions.size()); //make sure all of the "first instructions" are marked for processing for (AnalyzedInstruction successor: startOfMethod.successors) { instructionsToAnalyze.set(successor.instructionIndex); } BitSet undeodexedInstructions = new BitSet(analyzedInstructions.size()); do { boolean d