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Example 31 with PrimType

use of soot.PrimType in project soot by Sable.

the class BuildIntermediateAppClasses method internalTransform.

protected void internalTransform(String phaseName, Map<String, String> options) {
    if (output) {
        out.println("Building Intermediate Classes...");
    }
    BodyBuilder.retrieveAllBodies();
    // iterate through application classes, build intermediate classes
    Iterator<SootClass> it = Scene.v().getApplicationClasses().snapshotIterator();
    while (it.hasNext()) {
        List<SootMethod> initMethodsToRewrite = new ArrayList<>();
        Map<String, SootMethod> methodsToAdd = new HashMap<>();
        SootClass sc = it.next();
        SootClass originalSuperclass = sc.getSuperclass();
        if (output) {
            out.println("Processing " + sc.getName() + " with super " + originalSuperclass.getName());
        }
        Iterator<SootMethod> methodIterator = sc.methodIterator();
        while (methodIterator.hasNext()) {
            SootMethod method = methodIterator.next();
            if (!method.isConcrete()) {
                continue;
            }
            try {
                method.getActiveBody();
            } catch (Exception e) {
                if (method.retrieveActiveBody() == null)
                    throw new RuntimeException(method.getSignature() + " has no body. This was not expected dude.");
            }
            String subSig = method.getSubSignature();
            if (subSig.equals("void main(java.lang.String[])") && method.isPublic() && method.isStatic()) {
                // skip the main method - it needs to be named 'main'
                continue;
            } else if (subSig.indexOf("init>(") > 0) {
                if (subSig.startsWith("void <init>(")) {
                    initMethodsToRewrite.add(method);
                }
                // skip constructors, just add for rewriting at the end
                continue;
            } else {
                Scene.v().releaseActiveHierarchy();
                findAccessibleInSuperClassesBySubSig(sc, subSig).ifPresent(m -> methodsToAdd.put(subSig, m));
            }
        }
        if (methodsToAdd.size() > 0) {
            final String fullName = ClassRenamer.v().getNewName(ClassRenamer.getPackageName(sc.getName()), null);
            if (output) {
                out.println("\tBuilding " + fullName);
            }
            // make non-final soot class
            SootClass mediatingClass = new SootClass(fullName, sc.getModifiers() & (~Modifier.FINAL));
            Main.IntermediateAppClasses.add(mediatingClass);
            mediatingClass.setSuperclass(originalSuperclass);
            Scene.v().addClass(mediatingClass);
            mediatingClass.setApplicationClass();
            mediatingClass.setInScene(true);
            ThisRef thisRef = new ThisRef(mediatingClass.getType());
            for (String subSig : methodsToAdd.keySet()) {
                SootMethod originalSuperclassMethod = methodsToAdd.get(subSig);
                List<Type> paramTypes = originalSuperclassMethod.getParameterTypes();
                Type returnType = originalSuperclassMethod.getReturnType();
                List<SootClass> exceptions = originalSuperclassMethod.getExceptions();
                int modifiers = originalSuperclassMethod.getModifiers() & ~Modifier.ABSTRACT & ~Modifier.NATIVE;
                SootMethod newMethod;
                {
                    // build new junk method to call original method
                    String newMethodName = MethodRenamer.v().getNewName();
                    newMethod = Scene.v().makeSootMethod(newMethodName, paramTypes, returnType, modifiers, exceptions);
                    mediatingClass.addMethod(newMethod);
                    Body body = Jimple.v().newBody(newMethod);
                    newMethod.setActiveBody(body);
                    Chain<Local> locals = body.getLocals();
                    PatchingChain<Unit> units = body.getUnits();
                    BodyBuilder.buildThisLocal(units, thisRef, locals);
                    BodyBuilder.buildParameterLocals(units, locals, paramTypes);
                    if (returnType instanceof VoidType) {
                        units.add(Jimple.v().newReturnVoidStmt());
                    } else if (returnType instanceof PrimType) {
                        units.add(Jimple.v().newReturnStmt(IntConstant.v(0)));
                    } else {
                        units.add(Jimple.v().newReturnStmt(NullConstant.v()));
                    }
                    newmethods++;
                }
                // end build new junk method to call original method
                {
                    // build copy of old method
                    newMethod = Scene.v().makeSootMethod(originalSuperclassMethod.getName(), paramTypes, returnType, modifiers, exceptions);
                    mediatingClass.addMethod(newMethod);
                    Body body = Jimple.v().newBody(newMethod);
                    newMethod.setActiveBody(body);
                    Chain<Local> locals = body.getLocals();
                    PatchingChain<Unit> units = body.getUnits();
                    Local ths = BodyBuilder.buildThisLocal(units, thisRef, locals);
                    List<Local> args = BodyBuilder.buildParameterLocals(units, locals, paramTypes);
                    SootMethodRef superclassMethodRef = originalSuperclassMethod.makeRef();
                    if (returnType instanceof VoidType) {
                        units.add(Jimple.v().newInvokeStmt(Jimple.v().newSpecialInvokeExpr(ths, superclassMethodRef, args)));
                        units.add(Jimple.v().newReturnVoidStmt());
                    } else {
                        Local loc = Jimple.v().newLocal("retValue", returnType);
                        body.getLocals().add(loc);
                        units.add(Jimple.v().newAssignStmt(loc, Jimple.v().newSpecialInvokeExpr(ths, superclassMethodRef, args)));
                        units.add(Jimple.v().newReturnStmt(loc));
                    }
                    newmethods++;
                }
            // end build copy of old method
            }
            sc.setSuperclass(mediatingClass);
            // rewrite class init methods to call the proper superclass inits
            int i = initMethodsToRewrite.size();
            while (i-- > 0) {
                SootMethod im = initMethodsToRewrite.remove(i);
                Body b = im.getActiveBody();
                Local thisLocal = b.getThisLocal();
                Iterator<Unit> uIt = b.getUnits().snapshotIterator();
                while (uIt.hasNext()) {
                    for (ValueBox valueBox : uIt.next().getUseBoxes()) {
                        Value v = valueBox.getValue();
                        if (v instanceof SpecialInvokeExpr) {
                            SpecialInvokeExpr sie = (SpecialInvokeExpr) v;
                            SootMethodRef smr = sie.getMethodRef();
                            if (sie.getBase().equivTo(thisLocal) && smr.declaringClass().getName().equals(originalSuperclass.getName()) && smr.getSubSignature().getString().startsWith("void " + constructorName)) {
                                SootMethod newSuperInit;
                                if (!mediatingClass.declaresMethod(constructorName, smr.parameterTypes())) {
                                    List<Type> paramTypes = smr.parameterTypes();
                                    newSuperInit = Scene.v().makeSootMethod(constructorName, paramTypes, smr.returnType());
                                    mediatingClass.addMethod(newSuperInit);
                                    JimpleBody body = Jimple.v().newBody(newSuperInit);
                                    newSuperInit.setActiveBody(body);
                                    PatchingChain<Unit> initUnits = body.getUnits();
                                    Collection<Local> locals = body.getLocals();
                                    Local ths = BodyBuilder.buildThisLocal(initUnits, thisRef, locals);
                                    List<Local> args = BodyBuilder.buildParameterLocals(initUnits, locals, paramTypes);
                                    initUnits.add(Jimple.v().newInvokeStmt(Jimple.v().newSpecialInvokeExpr(ths, smr, args)));
                                    initUnits.add(Jimple.v().newReturnVoidStmt());
                                } else {
                                    newSuperInit = mediatingClass.getMethod(constructorName, smr.parameterTypes());
                                }
                                sie.setMethodRef(newSuperInit.makeRef());
                            }
                        }
                    }
                }
            }
        // end of rewrite class init methods to call the proper superclass inits
        }
    }
    newclasses = Main.IntermediateAppClasses.size();
    Scene.v().releaseActiveHierarchy();
    Scene.v().getActiveHierarchy();
    Scene.v().setFastHierarchy(new FastHierarchy());
}
Also used : Body(soot.Body) ThisRef(soot.jimple.ThisRef) PatchingChain(soot.PatchingChain) Main(soot.jbco.Main) BodyBuilder(soot.jbco.util.BodyBuilder) HashMap(java.util.HashMap) NullConstant(soot.jimple.NullConstant) FastHierarchy(soot.FastHierarchy) Modifier(soot.Modifier) SootMethodRef(soot.SootMethodRef) ArrayList(java.util.ArrayList) SootMethod(soot.SootMethod) IJbcoTransform(soot.jbco.IJbcoTransform) Chain(soot.util.Chain) Map(java.util.Map) Local(soot.Local) Scene(soot.Scene) IntConstant(soot.jimple.IntConstant) Value(soot.Value) SpecialInvokeExpr(soot.jimple.SpecialInvokeExpr) Iterator(java.util.Iterator) Unit(soot.Unit) Collection(java.util.Collection) Jimple(soot.jimple.Jimple) SootClass(soot.SootClass) ValueBox(soot.ValueBox) Type(soot.Type) List(java.util.List) JimpleBody(soot.jimple.JimpleBody) SootMethod.constructorName(soot.SootMethod.constructorName) PrimType(soot.PrimType) VoidType(soot.VoidType) Hierarchy(soot.Hierarchy) Optional(java.util.Optional) SceneTransformer(soot.SceneTransformer) VoidType(soot.VoidType) PatchingChain(soot.PatchingChain) Chain(soot.util.Chain) HashMap(java.util.HashMap) SpecialInvokeExpr(soot.jimple.SpecialInvokeExpr) ArrayList(java.util.ArrayList) Unit(soot.Unit) PrimType(soot.PrimType) ArrayList(java.util.ArrayList) List(java.util.List) Body(soot.Body) JimpleBody(soot.jimple.JimpleBody) JimpleBody(soot.jimple.JimpleBody) PatchingChain(soot.PatchingChain) SootMethodRef(soot.SootMethodRef) Local(soot.Local) SootClass(soot.SootClass) Type(soot.Type) PrimType(soot.PrimType) VoidType(soot.VoidType) FastHierarchy(soot.FastHierarchy) ThisRef(soot.jimple.ThisRef) ValueBox(soot.ValueBox) Value(soot.Value) SootMethod(soot.SootMethod)

Aggregations

PrimType (soot.PrimType)31 RefType (soot.RefType)15 ArrayList (java.util.ArrayList)12 Type (soot.Type)10 Value (soot.Value)10 DoubleType (soot.DoubleType)9 FloatType (soot.FloatType)9 IntType (soot.IntType)9 Local (soot.Local)9 LongType (soot.LongType)9 BooleanType (soot.BooleanType)8 SootClass (soot.SootClass)8 SootMethod (soot.SootMethod)8 ByteType (soot.ByteType)7 CharType (soot.CharType)7 ShortType (soot.ShortType)7 ArrayType (soot.ArrayType)6 VoidType (soot.VoidType)6 MethodVisitor (org.objectweb.asm.MethodVisitor)4 PointerType (org.robovm.compiler.llvm.PointerType)4