Examples with MethodImplementation org.jf.dexlib2.iface.MethodImplementation used on opensource projects

Example 21 with MethodImplementation

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

the class FixGotoTest method testFixGoto16ToGoto32.

@Test
public void testFixGoto16ToGoto32() {
    MethodImplementationBuilder builder = new MethodImplementationBuilder(1);
    Label gotoTarget = builder.getLabel("gotoTarget");
    builder.addInstruction(new BuilderInstruction20t(Opcode.GOTO_16, gotoTarget));
    for (int i = 0; i < 70000; i++) {
        builder.addInstruction(new BuilderInstruction10x(Opcode.NOP));
    }
    builder.addLabel("gotoTarget");
    builder.addInstruction(new BuilderInstruction10x(Opcode.RETURN_VOID));
    MethodImplementation impl = builder.getMethodImplementation();
    List<? extends Instruction> instructions = Lists.newArrayList(impl.getInstructions());
    Assert.assertEquals(70002, instructions.size());
    Assert.assertEquals(Opcode.GOTO_32, instructions.get(0).getOpcode());
    Assert.assertEquals(70003, ((OffsetInstruction) instructions.get(0)).getCodeOffset());
}

Example 22 with MethodImplementation

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

the class JumboStringConversionTest method testJumboStringConversion.

@Test
public void testJumboStringConversion() throws IOException {
    DexBuilder dexBuilder = new DexBuilder(Opcodes.getDefault());
    MethodImplementationBuilder methodBuilder = new MethodImplementationBuilder(1);
    for (int i = 0; i < 66000; i++) {
        methodBuilder.addInstruction(new BuilderInstruction21c(Opcode.CONST_STRING, 0, dexBuilder.internStringReference(String.format("%08d", i))));
    }
    methodBuilder.addInstruction(new BuilderInstruction10x(Opcode.RETURN_VOID));
    dexBuilder.internClassDef("Ltest;", 0, "Ljava/lang/Object;", null, null, ImmutableSet.<Annotation>of(), null, ImmutableList.of(dexBuilder.internMethod("Ltest;", "test", null, "V", 0, ImmutableSet.<Annotation>of(), ImmutableSet.of(), methodBuilder.getMethodImplementation())));
    MemoryDataStore dexStore = new MemoryDataStore();
    dexBuilder.writeTo(dexStore);
    DexBackedDexFile dexFile = new DexBackedDexFile(Opcodes.getDefault(), dexStore.getBuffer());
    ClassDef classDef = Iterables.getFirst(dexFile.getClasses(), null);
    Assert.assertNotNull(classDef);
    Method method = Iterables.getFirst(classDef.getMethods(), null);
    Assert.assertNotNull(method);
    MethodImplementation impl = method.getImplementation();
    Assert.assertNotNull(impl);
    List<? extends Instruction> instructions = Lists.newArrayList(impl.getInstructions());
    Assert.assertEquals(66001, instructions.size());
    for (int i = 0; i < 65536; i++) {
        Assert.assertEquals(Opcode.CONST_STRING, instructions.get(i).getOpcode());
        Assert.assertEquals(String.format("%08d", i), ((StringReference) ((ReferenceInstruction) instructions.get(i)).getReference()).getString());
    }
    for (int i = 65536; i < 66000; i++) {
        Assert.assertEquals(Opcode.CONST_STRING_JUMBO, instructions.get(i).getOpcode());
        Assert.assertEquals(String.format("%08d", i), ((StringReference) ((ReferenceInstruction) instructions.get(i)).getReference()).getString());
    }
    Assert.assertEquals(Opcode.RETURN_VOID, instructions.get(66000).getOpcode());
}

Example 23 with MethodImplementation

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

the class JumboStringConversionTest method testJumboStringConversion_NonMethodBuilder.

@Test
public void testJumboStringConversion_NonMethodBuilder() throws IOException {
    DexBuilder dexBuilder = new DexBuilder(Opcodes.getDefault());
    final List<Instruction> instructions = Lists.newArrayList();
    for (int i = 0; i < 66000; i++) {
        final StringReference ref = dexBuilder.internStringReference(String.format("%08d", i));
        instructions.add(new Instruction21c() {

            @Override
            public int getRegisterA() {
                return 0;
            }

            @Nonnull
            @Override
            public Reference getReference() {
                return ref;
            }

            @Override
            public int getReferenceType() {
                return ReferenceType.STRING;
            }

            @Override
            public Opcode getOpcode() {
                return Opcode.CONST_STRING;
            }

            @Override
            public int getCodeUnits() {
                return getOpcode().format.size / 2;
            }
        });
    }
    instructions.add(new ImmutableInstruction10x(Opcode.RETURN_VOID));
    MethodImplementation methodImpl = new MethodImplementation() {

        @Override
        public int getRegisterCount() {
            return 1;
        }

        @Nonnull
        @Override
        public Iterable<? extends Instruction> getInstructions() {
            return instructions;
        }

        @Nonnull
        @Override
        public List<? extends TryBlock<? extends ExceptionHandler>> getTryBlocks() {
            return ImmutableList.of();
        }

        @Nonnull
        @Override
        public Iterable<? extends DebugItem> getDebugItems() {
            return ImmutableList.of();
        }
    };
    dexBuilder.internClassDef("Ltest;", 0, "Ljava/lang/Object;", null, null, ImmutableSet.<Annotation>of(), null, ImmutableList.of(dexBuilder.internMethod("Ltest;", "test", null, "V", 0, ImmutableSet.<Annotation>of(), ImmutableSet.of(), methodImpl)));
    MemoryDataStore dexStore = new MemoryDataStore();
    dexBuilder.writeTo(dexStore);
    DexBackedDexFile dexFile = new DexBackedDexFile(Opcodes.getDefault(), dexStore.getBuffer());
    ClassDef classDef = Iterables.getFirst(dexFile.getClasses(), null);
    Assert.assertNotNull(classDef);
    Method method = Iterables.getFirst(classDef.getMethods(), null);
    Assert.assertNotNull(method);
    MethodImplementation impl = method.getImplementation();
    Assert.assertNotNull(impl);
    List<? extends Instruction> actualInstructions = Lists.newArrayList(impl.getInstructions());
    Assert.assertEquals(66001, actualInstructions.size());
    for (int i = 0; i < 65536; i++) {
        Assert.assertEquals(Opcode.CONST_STRING, actualInstructions.get(i).getOpcode());
        Assert.assertEquals(String.format("%08d", i), ((StringReference) ((ReferenceInstruction) actualInstructions.get(i)).getReference()).getString());
    }
    for (int i = 65536; i < 66000; i++) {
        Assert.assertEquals(Opcode.CONST_STRING_JUMBO, actualInstructions.get(i).getOpcode());
        Assert.assertEquals(String.format("%08d", i), ((StringReference) ((ReferenceInstruction) actualInstructions.get(i)).getReference()).getString());
    }
    Assert.assertEquals(Opcode.RETURN_VOID, actualInstructions.get(66000).getOpcode());
}

Example 24 with MethodImplementation

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

the class ImplicitReferenceTest method testImplicitFieldReference.

@Test
public void testImplicitFieldReference() throws RecognitionException, IOException {
    ClassDef classDef = SmaliTestUtils.compileSmali("" + ".class public LHelloWorld;\n" + ".super Ljava/lang/Object;\n" + ".method public static main([Ljava/lang/String;)V\n" + "    .registers 1\n" + "    sget-object v0, someField:I\n" + "    sget-object v0, V:I\n" + "    sget-object v0, I:I\n" + "    return-void\n" + ".end method");
    Method mainMethod = null;
    for (Method method : classDef.getMethods()) {
        if (method.getName().equals("main")) {
            mainMethod = method;
        }
    }
    Assert.assertNotNull(mainMethod);
    MethodImplementation methodImpl = mainMethod.getImplementation();
    Assert.assertNotNull(methodImpl);
    List<Instruction> instructions = Lists.newArrayList(methodImpl.getInstructions());
    Instruction21c instruction = (Instruction21c) instructions.get(0);
    Assert.assertNotNull(instruction);
    Assert.assertEquals(Opcode.SGET_OBJECT, instruction.getOpcode());
    FieldReference field = (FieldReference) instruction.getReference();
    Assert.assertEquals(classDef.getType(), field.getDefiningClass());
    Assert.assertEquals("someField", field.getName());
    instruction = (Instruction21c) instructions.get(1);
    Assert.assertNotNull(instruction);
    Assert.assertEquals(Opcode.SGET_OBJECT, instruction.getOpcode());
    field = (FieldReference) instruction.getReference();
    Assert.assertEquals(classDef.getType(), field.getDefiningClass());
    Assert.assertEquals("V", field.getName());
    instruction = (Instruction21c) instructions.get(2);
    Assert.assertNotNull(instruction);
    Assert.assertEquals(Opcode.SGET_OBJECT, instruction.getOpcode());
    field = (FieldReference) instruction.getReference();
    Assert.assertEquals(classDef.getType(), field.getDefiningClass());
    Assert.assertEquals("I", field.getName());
}

Example 25 with MethodImplementation

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

the class PatchMethodTool method modifyMethod.

public static void modifyMethod(String srcDexFile, String outDexFile, boolean isAndFix) throws IOException {
    DexFile dexFile = DexFileFactory.loadDexFile(srcDexFile, 15, true);
    final Set<ClassDef> classes = Sets.newConcurrentHashSet();
    for (ClassDef classDef : dexFile.getClasses()) {
        Set<Method> methods = Sets.newConcurrentHashSet();
        boolean modifiedMethod = false;
        for (Method method : classDef.getMethods()) {
            MethodImplementation implementation = method.getImplementation();
            if (implementation != null && (methodNeedsModification(classDef, method, isAndFix))) {
                modifiedMethod = true;
                methods.add(new ImmutableMethod(method.getDefiningClass(), method.getName(), method.getParameters(), method.getReturnType(), method.getAccessFlags(), method.getAnnotations(), isAndFix ? modifyMethodAndFix(implementation, method) : modifyMethodTpatch(implementation, method)));
            } else {
                methods.add(method);
            }
        }
        if (!modifiedMethod) {
            classes.add(classDef);
        } else {
            classes.add(new ImmutableClassDef(classDef.getType(), classDef.getAccessFlags(), classDef.getSuperclass(), classDef.getInterfaces(), classDef.getSourceFile(), classDef.getAnnotations(), classDef.getFields(), methods));
        }
    }
    DexFileFactory.writeDexFile(outDexFile, new DexFile() {

        @Nonnull
        @Override
        public Set<? extends ClassDef> getClasses() {
            return new AbstractSet<ClassDef>() {

                @Nonnull
                @Override
                public Iterator<ClassDef> iterator() {
                    return classes.iterator();
                }

                @Override
                public int size() {
                    return classes.size();
                }
            };
        }
    });
}