Examples with Instruction org.jf.dexlib2.iface.instruction.Instruction used on opensource projects

Example 51 with Instruction

use of org.jf.dexlib2.iface.instruction.Instruction in project atlas by alibaba.

the class PreInstructionRegisterInfoMethodItem method writeFullMerge.

private void writeFullMerge(IndentingWriter writer, int registerNum) throws IOException {
    registerFormatter.writeTo(writer, registerNum);
    writer.write('=');
    analyzedInstruction.getPreInstructionRegisterType(registerNum).writeTo(writer);
    writer.write(":merge{");
    boolean first = true;
    for (AnalyzedInstruction predecessor : analyzedInstruction.getPredecessors()) {
        RegisterType predecessorRegisterType = predecessor.getPostInstructionRegisterType(registerNum);
        if (!first) {
            writer.write(',');
        }
        if (predecessor.getInstructionIndex() == -1) {
            //the fake "StartOfMethod" instruction
            writer.write("Start:");
        } else {
            writer.write("0x");
            writer.printUnsignedLongAsHex(methodAnalyzer.getInstructionAddress(predecessor));
            writer.write(':');
        }
        predecessorRegisterType.writeTo(writer);
        first = false;
    }
    writer.write('}');
}

Example 52 with Instruction

use of org.jf.dexlib2.iface.instruction.Instruction in project smali by JesusFreke.

the class MethodAnalyzer method analyzeIputIgetQuick.

private boolean analyzeIputIgetQuick(@Nonnull AnalyzedInstruction analyzedInstruction) {
    Instruction22cs instruction = (Instruction22cs) analyzedInstruction.instruction;
    int fieldOffset = instruction.getFieldOffset();
    RegisterType objectRegisterType = getAndCheckSourceRegister(analyzedInstruction, instruction.getRegisterB(), ReferenceOrUninitCategories);
    if (objectRegisterType.category == RegisterType.NULL) {
        return false;
    }
    TypeProto objectRegisterTypeProto = objectRegisterType.type;
    assert objectRegisterTypeProto != null;
    TypeProto classTypeProto = classPath.getClass(objectRegisterTypeProto.getType());
    FieldReference resolvedField = classTypeProto.getFieldByOffset(fieldOffset);
    if (resolvedField == null) {
        throw new AnalysisException("Could not resolve the field in class %s at offset %d", objectRegisterType.type.getType(), fieldOffset);
    }
    ClassDef thisClass = classPath.getClassDef(method.getDefiningClass());
    if (!TypeUtils.canAccessClass(thisClass.getType(), classPath.getClassDef(resolvedField.getDefiningClass()))) {
        // the class is not accessible. So we start looking at objectRegisterTypeProto (which may be different
        // than resolvedField.getDefiningClass()), and walk up the class hierarchy.
        ClassDef fieldClass = classPath.getClassDef(objectRegisterTypeProto.getType());
        while (!TypeUtils.canAccessClass(thisClass.getType(), fieldClass)) {
            String superclass = fieldClass.getSuperclass();
            if (superclass == null) {
                throw new ExceptionWithContext("Couldn't find accessible class while resolving field %s", ReferenceUtil.getShortFieldDescriptor(resolvedField));
            }
            fieldClass = classPath.getClassDef(superclass);
        }
        // fieldClass is now the first accessible class found. Now. we need to make sure that the field is
        // actually valid for this class
        FieldReference newResolvedField = classPath.getClass(fieldClass.getType()).getFieldByOffset(fieldOffset);
        if (newResolvedField == null) {
            throw new ExceptionWithContext("Couldn't find accessible class while resolving field %s", ReferenceUtil.getShortFieldDescriptor(resolvedField));
        }
        resolvedField = new ImmutableFieldReference(fieldClass.getType(), newResolvedField.getName(), newResolvedField.getType());
    }
    String fieldType = resolvedField.getType();
    Opcode opcode = classPath.getFieldInstructionMapper().getAndCheckDeodexedOpcode(fieldType, instruction.getOpcode());
    Instruction22c deodexedInstruction = new ImmutableInstruction22c(opcode, (byte) instruction.getRegisterA(), (byte) instruction.getRegisterB(), resolvedField);
    analyzedInstruction.setDeodexedInstruction(deodexedInstruction);
    analyzeInstruction(analyzedInstruction);
    return true;
}

Example 53 with Instruction

use of org.jf.dexlib2.iface.instruction.Instruction in project smali by JesusFreke.

the class MethodAnalyzer method analyzeExecuteInlineRange.

private void analyzeExecuteInlineRange(@Nonnull AnalyzedInstruction analyzedInstruction) {
    if (inlineResolver == null) {
        throw new AnalysisException("Cannot analyze an odexed instruction unless we are deodexing");
    }
    Instruction3rmi instruction = (Instruction3rmi) analyzedInstruction.instruction;
    Method resolvedMethod = inlineResolver.resolveExecuteInline(analyzedInstruction);
    Opcode deodexedOpcode;
    int acccessFlags = resolvedMethod.getAccessFlags();
    if (AccessFlags.STATIC.isSet(acccessFlags)) {
        deodexedOpcode = Opcode.INVOKE_STATIC_RANGE;
    } else if (AccessFlags.PRIVATE.isSet(acccessFlags)) {
        deodexedOpcode = Opcode.INVOKE_DIRECT_RANGE;
    } else {
        deodexedOpcode = Opcode.INVOKE_VIRTUAL_RANGE;
    }
    Instruction3rc deodexedInstruction = new ImmutableInstruction3rc(deodexedOpcode, instruction.getStartRegister(), instruction.getRegisterCount(), resolvedMethod);
    analyzedInstruction.setDeodexedInstruction(deodexedInstruction);
    analyzeInstruction(analyzedInstruction);
}

Example 54 with Instruction

use of org.jf.dexlib2.iface.instruction.Instruction in project smali by JesusFreke.

the class MethodAnalyzer method analyzeExecuteInline.

private void analyzeExecuteInline(@Nonnull AnalyzedInstruction analyzedInstruction) {
    if (inlineResolver == null) {
        throw new AnalysisException("Cannot analyze an odexed instruction unless we are deodexing");
    }
    Instruction35mi instruction = (Instruction35mi) analyzedInstruction.instruction;
    Method resolvedMethod = inlineResolver.resolveExecuteInline(analyzedInstruction);
    Opcode deodexedOpcode;
    int acccessFlags = resolvedMethod.getAccessFlags();
    if (AccessFlags.STATIC.isSet(acccessFlags)) {
        deodexedOpcode = Opcode.INVOKE_STATIC;
    } else if (AccessFlags.PRIVATE.isSet(acccessFlags)) {
        deodexedOpcode = Opcode.INVOKE_DIRECT;
    } else {
        deodexedOpcode = Opcode.INVOKE_VIRTUAL;
    }
    Instruction35c deodexedInstruction = new ImmutableInstruction35c(deodexedOpcode, instruction.getRegisterCount(), instruction.getRegisterC(), instruction.getRegisterD(), instruction.getRegisterE(), instruction.getRegisterF(), instruction.getRegisterG(), resolvedMethod);
    analyzedInstruction.setDeodexedInstruction(deodexedInstruction);
    analyzeInstruction(analyzedInstruction);
}

Example 55 with Instruction

use of org.jf.dexlib2.iface.instruction.Instruction 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;
}