Examples with MethodReference org.jf.dexlib2.iface.reference.MethodReference used on opensource projects

Example 16 with MethodReference

use of org.jf.dexlib2.iface.reference.MethodReference in project atlas by alibaba.

the class ReferenceUtil method getReferenceString.

@Nullable
public static String getReferenceString(@Nonnull Reference reference, @Nullable String containingClass) {
    if (reference instanceof StringReference) {
        return String.format("\"%s\"", StringUtils.escapeString(((StringReference) reference).getString()));
    }
    if (reference instanceof TypeReference) {
        //TypeGenUtil.newType(((TypeReference)reference).getType());
        String clazz = ((TypeReference) reference).getType();
        return clazz;
    }
    if (reference instanceof FieldReference) {
        FieldReference fieldReference = (FieldReference) reference;
        boolean useImplicitReference = fieldReference.getDefiningClass().equals(containingClass);
        return getFieldDescriptor((FieldReference) reference, useImplicitReference);
    }
    if (reference instanceof MethodReference) {
        MethodReference methodReference = (MethodReference) reference;
        boolean useImplicitReference = methodReference.getDefiningClass().equals(containingClass);
        return getMethodDescriptor((MethodReference) reference, useImplicitReference);
    }
    return null;
}

Example 17 with MethodReference

use of org.jf.dexlib2.iface.reference.MethodReference in project smali by JesusFreke.

the class MethodAnalyzer method analyzeInvokeVirtual.

private boolean analyzeInvokeVirtual(@Nonnull AnalyzedInstruction analyzedInstruction, boolean isRange) {
    MethodReference targetMethod;
    if (!normalizeVirtualMethods) {
        return true;
    }
    if (isRange) {
        Instruction3rc instruction = (Instruction3rc) analyzedInstruction.instruction;
        targetMethod = (MethodReference) instruction.getReference();
    } else {
        Instruction35c instruction = (Instruction35c) analyzedInstruction.instruction;
        targetMethod = (MethodReference) instruction.getReference();
    }
    MethodReference replacementMethod = normalizeMethodReference(targetMethod);
    if (replacementMethod == null || replacementMethod.equals(targetMethod)) {
        return true;
    }
    Instruction deodexedInstruction;
    if (isRange) {
        Instruction3rc instruction = (Instruction3rc) analyzedInstruction.instruction;
        deodexedInstruction = new ImmutableInstruction3rc(instruction.getOpcode(), instruction.getStartRegister(), instruction.getRegisterCount(), replacementMethod);
    } else {
        Instruction35c instruction = (Instruction35c) analyzedInstruction.instruction;
        deodexedInstruction = new ImmutableInstruction35c(instruction.getOpcode(), instruction.getRegisterCount(), instruction.getRegisterC(), instruction.getRegisterD(), instruction.getRegisterE(), instruction.getRegisterF(), instruction.getRegisterG(), replacementMethod);
    }
    analyzedInstruction.setDeodexedInstruction(deodexedInstruction);
    return true;
}

Example 18 with MethodReference

use of org.jf.dexlib2.iface.reference.MethodReference in project smali by JesusFreke.

the class MethodAnalyzer method analyzeMoveResult.

private void analyzeMoveResult(@Nonnull AnalyzedInstruction analyzedInstruction) {
    AnalyzedInstruction previousInstruction = null;
    if (analyzedInstruction.instructionIndex > 0) {
        previousInstruction = analyzedInstructions.valueAt(analyzedInstruction.instructionIndex - 1);
    }
    if (previousInstruction == null || !previousInstruction.instruction.getOpcode().setsResult()) {
        throw new AnalysisException(analyzedInstruction.instruction.getOpcode().name + " must occur after an " + "invoke-*/fill-new-array instruction");
    }
    RegisterType resultRegisterType;
    ReferenceInstruction invokeInstruction = (ReferenceInstruction) previousInstruction.instruction;
    Reference reference = invokeInstruction.getReference();
    if (reference instanceof MethodReference) {
        resultRegisterType = RegisterType.getRegisterType(classPath, ((MethodReference) reference).getReturnType());
    } else {
        resultRegisterType = RegisterType.getRegisterType(classPath, (TypeReference) reference);
    }
    setDestinationRegisterTypeAndPropagateChanges(analyzedInstruction, resultRegisterType);
}

Example 19 with MethodReference

use of org.jf.dexlib2.iface.reference.MethodReference in project smali by JesusFreke.

the class MethodAnalyzer method analyzeInvokeVirtualQuick.

private boolean analyzeInvokeVirtualQuick(@Nonnull AnalyzedInstruction analyzedInstruction, boolean isSuper, boolean isRange) {
    int methodIndex;
    int objectRegister;
    if (isRange) {
        Instruction3rms instruction = (Instruction3rms) analyzedInstruction.instruction;
        methodIndex = instruction.getVtableIndex();
        objectRegister = instruction.getStartRegister();
    } else {
        Instruction35ms instruction = (Instruction35ms) analyzedInstruction.instruction;
        methodIndex = instruction.getVtableIndex();
        objectRegister = instruction.getRegisterC();
    }
    RegisterType objectRegisterType = getAndCheckSourceRegister(analyzedInstruction, objectRegister, ReferenceOrUninitCategories);
    TypeProto objectRegisterTypeProto = objectRegisterType.type;
    if (objectRegisterType.category == RegisterType.NULL) {
        return false;
    }
    assert objectRegisterTypeProto != null;
    MethodReference resolvedMethod;
    if (isSuper) {
        // invoke-super is only used for the same class that we're currently in
        TypeProto typeProto = classPath.getClass(method.getDefiningClass());
        TypeProto superType;
        String superclassType = typeProto.getSuperclass();
        if (superclassType != null) {
            superType = classPath.getClass(superclassType);
        } else {
            // This is either java.lang.Object, or an UnknownClassProto
            superType = typeProto;
        }
        resolvedMethod = superType.getMethodByVtableIndex(methodIndex);
    } else {
        resolvedMethod = objectRegisterTypeProto.getMethodByVtableIndex(methodIndex);
    }
    if (resolvedMethod == null) {
        throw new AnalysisException("Could not resolve the method in class %s at index %d", objectRegisterType.type.getType(), methodIndex);
    }
    // no need to check class access for invoke-super. A class can obviously access its superclass.
    ClassDef thisClass = classPath.getClassDef(method.getDefiningClass());
    if (classPath.getClass(resolvedMethod.getDefiningClass()).isInterface()) {
        resolvedMethod = new ReparentedMethodReference(resolvedMethod, objectRegisterTypeProto.getType());
    } else if (!isSuper && !TypeUtils.canAccessClass(thisClass.getType(), classPath.getClassDef(resolvedMethod.getDefiningClass()))) {
        // the class is not accessible. So we start looking at objectRegisterTypeProto (which may be different
        // than resolvedMethod.getDefiningClass()), and walk up the class hierarchy.
        ClassDef methodClass = classPath.getClassDef(objectRegisterTypeProto.getType());
        while (!TypeUtils.canAccessClass(thisClass.getType(), methodClass)) {
            String superclass = methodClass.getSuperclass();
            if (superclass == null) {
                throw new ExceptionWithContext("Couldn't find accessible class while resolving method %s", ReferenceUtil.getMethodDescriptor(resolvedMethod, true));
            }
            methodClass = classPath.getClassDef(superclass);
        }
        // methodClass is now the first accessible class found. Now. we need to make sure that the method is
        // actually valid for this class
        MethodReference newResolvedMethod = classPath.getClass(methodClass.getType()).getMethodByVtableIndex(methodIndex);
        if (newResolvedMethod == null) {
            throw new ExceptionWithContext("Couldn't find accessible class while resolving method %s", ReferenceUtil.getMethodDescriptor(resolvedMethod, true));
        }
        resolvedMethod = newResolvedMethod;
        resolvedMethod = new ImmutableMethodReference(methodClass.getType(), resolvedMethod.getName(), resolvedMethod.getParameterTypes(), resolvedMethod.getReturnType());
    }
    if (normalizeVirtualMethods) {
        MethodReference replacementMethod = normalizeMethodReference(resolvedMethod);
        if (replacementMethod != null) {
            resolvedMethod = replacementMethod;
        }
    }
    Instruction deodexedInstruction;
    if (isRange) {
        Instruction3rms instruction = (Instruction3rms) analyzedInstruction.instruction;
        Opcode opcode;
        if (isSuper) {
            opcode = Opcode.INVOKE_SUPER_RANGE;
        } else {
            opcode = Opcode.INVOKE_VIRTUAL_RANGE;
        }
        deodexedInstruction = new ImmutableInstruction3rc(opcode, instruction.getStartRegister(), instruction.getRegisterCount(), resolvedMethod);
    } else {
        Instruction35ms instruction = (Instruction35ms) analyzedInstruction.instruction;
        Opcode opcode;
        if (isSuper) {
            opcode = Opcode.INVOKE_SUPER;
        } else {
            opcode = Opcode.INVOKE_VIRTUAL;
        }
        deodexedInstruction = new ImmutableInstruction35c(opcode, instruction.getRegisterCount(), instruction.getRegisterC(), instruction.getRegisterD(), instruction.getRegisterE(), instruction.getRegisterF(), instruction.getRegisterG(), resolvedMethod);
    }
    analyzedInstruction.setDeodexedInstruction(deodexedInstruction);
    analyzeInstruction(analyzedInstruction);
    return true;
}

Example 20 with MethodReference

use of org.jf.dexlib2.iface.reference.MethodReference in project smali by JesusFreke.

the class DexWriter method writeCodeItem.

private int writeCodeItem(@Nonnull DexDataWriter writer, @Nonnull ByteArrayOutputStream ehBuf, @Nonnull MethodKey methodKey, @Nonnull List<? extends TryBlock<? extends ExceptionHandler>> tryBlocks, @Nullable Iterable<? extends Instruction> instructions, int debugItemOffset) throws IOException {
    if (instructions == null && debugItemOffset == NO_OFFSET) {
        return -1;
    }
    numCodeItemItems++;
    writer.align();
    int codeItemOffset = writer.getPosition();
    writer.writeUshort(classSection.getRegisterCount(methodKey));
    boolean isStatic = AccessFlags.STATIC.isSet(classSection.getMethodAccessFlags(methodKey));
    Collection<? extends TypeKey> parameters = typeListSection.getTypes(protoSection.getParameters(methodSection.getPrototype(methodKey)));
    writer.writeUshort(MethodUtil.getParameterRegisterCount(parameters, isStatic));
    if (instructions != null) {
        tryBlocks = TryListBuilder.massageTryBlocks(tryBlocks);
        int outParamCount = 0;
        int codeUnitCount = 0;
        for (Instruction instruction : instructions) {
            codeUnitCount += instruction.getCodeUnits();
            if (instruction.getOpcode().referenceType == ReferenceType.METHOD) {
                ReferenceInstruction refInsn = (ReferenceInstruction) instruction;
                MethodReference methodRef = (MethodReference) refInsn.getReference();
                int paramCount = MethodUtil.getParameterRegisterCount(methodRef, InstructionUtil.isInvokeStatic(instruction.getOpcode()));
                if (paramCount > outParamCount) {
                    outParamCount = paramCount;
                }
            }
        }
        writer.writeUshort(outParamCount);
        writer.writeUshort(tryBlocks.size());
        writer.writeInt(debugItemOffset);
        InstructionWriter instructionWriter = InstructionWriter.makeInstructionWriter(opcodes, writer, stringSection, typeSection, fieldSection, methodSection, protoSection);
        writer.writeInt(codeUnitCount);
        int codeOffset = 0;
        for (Instruction instruction : instructions) {
            try {
                switch(instruction.getOpcode().format) {
                    case Format10t:
                        instructionWriter.write((Instruction10t) instruction);
                        break;
                    case Format10x:
                        instructionWriter.write((Instruction10x) instruction);
                        break;
                    case Format11n:
                        instructionWriter.write((Instruction11n) instruction);
                        break;
                    case Format11x:
                        instructionWriter.write((Instruction11x) instruction);
                        break;
                    case Format12x:
                        instructionWriter.write((Instruction12x) instruction);
                        break;
                    case Format20bc:
                        instructionWriter.write((Instruction20bc) instruction);
                        break;
                    case Format20t:
                        instructionWriter.write((Instruction20t) instruction);
                        break;
                    case Format21c:
                        instructionWriter.write((Instruction21c) instruction);
                        break;
                    case Format21ih:
                        instructionWriter.write((Instruction21ih) instruction);
                        break;
                    case Format21lh:
                        instructionWriter.write((Instruction21lh) instruction);
                        break;
                    case Format21s:
                        instructionWriter.write((Instruction21s) instruction);
                        break;
                    case Format21t:
                        instructionWriter.write((Instruction21t) instruction);
                        break;
                    case Format22b:
                        instructionWriter.write((Instruction22b) instruction);
                        break;
                    case Format22c:
                        instructionWriter.write((Instruction22c) instruction);
                        break;
                    case Format22s:
                        instructionWriter.write((Instruction22s) instruction);
                        break;
                    case Format22t:
                        instructionWriter.write((Instruction22t) instruction);
                        break;
                    case Format22x:
                        instructionWriter.write((Instruction22x) instruction);
                        break;
                    case Format23x:
                        instructionWriter.write((Instruction23x) instruction);
                        break;
                    case Format30t:
                        instructionWriter.write((Instruction30t) instruction);
                        break;
                    case Format31c:
                        instructionWriter.write((Instruction31c) instruction);
                        break;
                    case Format31i:
                        instructionWriter.write((Instruction31i) instruction);
                        break;
                    case Format31t:
                        instructionWriter.write((Instruction31t) instruction);
                        break;
                    case Format32x:
                        instructionWriter.write((Instruction32x) instruction);
                        break;
                    case Format35c:
                        instructionWriter.write((Instruction35c) instruction);
                        break;
                    case Format3rc:
                        instructionWriter.write((Instruction3rc) instruction);
                        break;
                    case Format45cc:
                        instructionWriter.write((Instruction45cc) instruction);
                        break;
                    case Format4rcc:
                        instructionWriter.write((Instruction4rcc) instruction);
                        break;
                    case Format51l:
                        instructionWriter.write((Instruction51l) instruction);
                        break;
                    case ArrayPayload:
                        instructionWriter.write((ArrayPayload) instruction);
                        break;
                    case PackedSwitchPayload:
                        instructionWriter.write((PackedSwitchPayload) instruction);
                        break;
                    case SparseSwitchPayload:
                        instructionWriter.write((SparseSwitchPayload) instruction);
                        break;
                    default:
                        throw new ExceptionWithContext("Unsupported instruction format: %s", instruction.getOpcode().format);
                }
            } catch (RuntimeException ex) {
                throw new ExceptionWithContext(ex, "Error while writing instruction at code offset 0x%x", codeOffset);
            }
            codeOffset += instruction.getCodeUnits();
        }
        if (tryBlocks.size() > 0) {
            writer.align();
            // filter out unique lists of exception handlers
            Map<List<? extends ExceptionHandler>, Integer> exceptionHandlerOffsetMap = Maps.newHashMap();
            for (TryBlock<? extends ExceptionHandler> tryBlock : tryBlocks) {
                exceptionHandlerOffsetMap.put(tryBlock.getExceptionHandlers(), 0);
            }
            DexDataWriter.writeUleb128(ehBuf, exceptionHandlerOffsetMap.size());
            for (TryBlock<? extends ExceptionHandler> tryBlock : tryBlocks) {
                int startAddress = tryBlock.getStartCodeAddress();
                int endAddress = startAddress + tryBlock.getCodeUnitCount();
                int tbCodeUnitCount = endAddress - startAddress;
                writer.writeInt(startAddress);
                writer.writeUshort(tbCodeUnitCount);
                if (tryBlock.getExceptionHandlers().size() == 0) {
                    throw new ExceptionWithContext("No exception handlers for the try block!");
                }
                Integer offset = exceptionHandlerOffsetMap.get(tryBlock.getExceptionHandlers());
                if (offset != 0) {
                    // exception handler has already been written out, just use it
                    writer.writeUshort(offset);
                } else {
                    // if offset has not been set yet, we are about to write out a new exception handler
                    offset = ehBuf.size();
                    writer.writeUshort(offset);
                    exceptionHandlerOffsetMap.put(tryBlock.getExceptionHandlers(), offset);
                    // check if the last exception handler is a catch-all and adjust the size accordingly
                    int ehSize = tryBlock.getExceptionHandlers().size();
                    ExceptionHandler ehLast = tryBlock.getExceptionHandlers().get(ehSize - 1);
                    if (ehLast.getExceptionType() == null) {
                        ehSize = ehSize * (-1) + 1;
                    }
                    // now let's layout the exception handlers, assuming that catch-all is always last
                    DexDataWriter.writeSleb128(ehBuf, ehSize);
                    for (ExceptionHandler eh : tryBlock.getExceptionHandlers()) {
                        TypeKey exceptionTypeKey = classSection.getExceptionType(eh);
                        int codeAddress = eh.getHandlerCodeAddress();
                        if (exceptionTypeKey != null) {
                            //regular exception handling
                            DexDataWriter.writeUleb128(ehBuf, typeSection.getItemIndex(exceptionTypeKey));
                            DexDataWriter.writeUleb128(ehBuf, codeAddress);
                        } else {
                            //catch-all
                            DexDataWriter.writeUleb128(ehBuf, codeAddress);
                        }
                    }
                }
            }
            if (ehBuf.size() > 0) {
                ehBuf.writeTo(writer);
                ehBuf.reset();
            }
        }
    } else {
        // no instructions, all we have is the debug item offset
        writer.writeUshort(0);
        writer.writeUshort(0);
        writer.writeInt(debugItemOffset);
        writer.writeInt(0);
    }
    return codeItemOffset;
}