Package org.jf.dexlib2.iface.instruction

Examples of org.jf.dexlib2.iface.instruction.Instruction

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        List<Task> switchPayloadTasks = Lists.newArrayList();
        index = 0;
        for (final Instruction instruction: methodImplementation.getInstructions()) {
            final MethodLocation location = instructionList.get(index);
            final Opcode opcode = instruction.getOpcode();
            if (opcode == Opcode.PACKED_SWITCH_PAYLOAD || opcode == Opcode.SPARSE_SWITCH_PAYLOAD) {
                switchPayloadTasks.add(new Task() {
                    @Override public void perform() {
                        convertAndSetInstruction(location, codeAddressToIndex, instruction);
                    }
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            opcode == Opcode.THROW_VERIFICATION_ERROR;
    }

    @Override
    public boolean writeTo(IndentingWriter writer) throws IOException {
        Opcode opcode = instruction.getOpcode();
        String verificationErrorName = null;
        String referenceString = null;

        boolean commentOutInstruction = false;

        if (instruction instanceof Instruction20bc) {
            int verificationError = ((Instruction20bc)instruction).getVerificationError();
            verificationErrorName = VerificationError.getVerificationErrorName(verificationError);
            if (verificationErrorName == null) {
                writer.write("#was invalid verification error type: ");
                writer.printSignedIntAsDec(verificationError);
                writer.write("\n");
                verificationErrorName = "generic-error";
            }
        }

        if (instruction instanceof ReferenceInstruction) {
            ReferenceInstruction referenceInstruction = (ReferenceInstruction)instruction;
            try {
                Reference reference = referenceInstruction.getReference();

                String classContext = null;
                if (methodDef.classDef.options.useImplicitReferences) {
                    classContext = methodDef.method.getDefiningClass();
                }

                referenceString = ReferenceUtil.getReferenceString(reference, classContext);
                assert referenceString != null;
            } catch (InvalidItemIndex ex) {
                writer.write("#");
                writer.write(ex.getMessage());
                writer.write("\n");
                commentOutInstruction = true;

                referenceString = String.format("%s@%d",
                    ReferenceType.toString(referenceInstruction.getReferenceType()),
                    ex.getInvalidIndex());
            } catch (ReferenceType.InvalidReferenceTypeException ex) {
                writer.write("#invalid reference type: ");
                writer.printSignedIntAsDec(ex.getReferenceType());
                commentOutInstruction = true;

                referenceString = "invalid_reference";
            }
        }

        if (instruction instanceof Instruction31t) {
            Opcode payloadOpcode;
            switch (instruction.getOpcode()) {
                case PACKED_SWITCH:
                    payloadOpcode = Opcode.PACKED_SWITCH_PAYLOAD;
                    break;
                case SPARSE_SWITCH:
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    public LabelMethodItem getLabel() {
        return label;
    }

    private String getLabelPrefix() {
        Opcode opcode = instruction.getOpcode();
        switch (opcode.format) {
            case Format10t:
            case Format20t:
            case Format30t:
                return "goto_";
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        };
    }

    public static TypeReference rewriteTypeReference(@Nonnull final Rewriter<String> typeRewriter,
                                                     @Nonnull final TypeReference typeReference) {
        return new BaseTypeReference() {
            @Nonnull @Override public String getType() {
                return typeRewriter.rewrite(typeReference.getType());
            }
        };
    }
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        final String exceptionType = getExceptionType();
        if (exceptionType == null) {
            return null;
        }

        return new BaseTypeReference() {
            @Nonnull @Override public String getType() {
                return exceptionType;
            }
        };
    }
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                            }
                        }
                    }

                    if (needsFix) {
                        MutableMethodImplementation mutableMethodImplementation =
                                classSection.makeMutableMethodImplementation(methodKey);
                        fixInstructions(mutableMethodImplementation);

                        instructions = mutableMethodImplementation.getInstructions();
                        tryBlocks = mutableMethodImplementation.getTryBlocks();
                        debugItems = mutableMethodImplementation.getDebugItems();
                    }
                }

                int debugItemOffset = writeDebugItem(offsetWriter, debugWriter,
                        classSection.getParameterNames(methodKey), debugItems);
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    @Test
    public void testFixOffsets() {
        MethodImplementationBuilder builder = new MethodImplementationBuilder(1);

        Label firstGotoTarget = builder.getLabel("firstGotoTarget");
        builder.addInstruction(new BuilderInstruction10t(Opcode.GOTO, firstGotoTarget));

        builder.addLineNumber(1);

        for (int i=0; i<250; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }

        builder.addLabel("tryStart");

        builder.addLineNumber(2);

        for (int i=0; i<250; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }

        builder.addLineNumber(3);

        Label secondGotoTarget = builder.getLabel("secondGotoTarget");
        builder.addInstruction(new BuilderInstruction10t(Opcode.GOTO, secondGotoTarget));


        builder.addLineNumber(4);
        builder.addLabel("handler");
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    @Test
    public void testFixGotoToGoto16() {
        MethodImplementationBuilder builder = new MethodImplementationBuilder(1);

        Label gotoTarget = builder.getLabel("gotoTarget");
        builder.addInstruction(new BuilderInstruction10t(Opcode.GOTO, gotoTarget));

        for (int i=0; i<500; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }
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    @Test
    public void testFixGotoToGoto32() {
        MethodImplementationBuilder builder = new MethodImplementationBuilder(1);

        Label gotoTarget = builder.getLabel("gotoTarget");
        builder.addInstruction(new BuilderInstruction10t(Opcode.GOTO, gotoTarget));

        for (int i=0; i<70000; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }
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        for (int i=0; i<1000; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }

        Label gotoTarget = builder.getLabel("gotoTarget");
        builder.addInstruction(new BuilderInstruction10t(Opcode.GOTO, gotoTarget));

        for (int i=0; i<499; i++) {
            builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
        }
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Related Classes of org.jf.dexlib2.iface.instruction.Instruction

  • ImplicitReferenceTest
  • org.jf.baksmali.Adaptors.ClassDefinition
  • org.jf.baksmali.Adaptors.Format.InstructionMethodItem
  • org.jf.baksmali.Adaptors.MethodDefinition
  • org.jf.baksmali.Adaptors.PreInstructionRegisterInfoMethodItem
  • org.jf.baksmali.AnalysisTest
  • org.jf.baksmali.baksmali
  • org.jf.baksmali.dump
  • org.jf.baksmali.ImplicitReferenceTest
  • org.jf.dexlib2.AccessorTest
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