Exemplo n.º 1
0
 private void ProcessStaticConstructors(ITypeDefinition ty)
 {
     if (!rtaAnalyzer.clinitProcessedClasses.Contains(ty) && !Stubber.SuppressM(ty))
     {
         rtaAnalyzer.clinitProcessedClasses.Add(ty);
         IMethodDefinition clinitMeth = Utils.GetStaticConstructor(ty);
         if (clinitMeth != null)
         {
             Stubber.CheckAndAdd(clinitMeth);
         }
         if (ty.BaseClasses.Any())
         {
             ITypeDefinition baseTy = ty.BaseClasses.Single().ResolvedType;
             ProcessStaticConstructors(baseTy);
         }
         foreach (ITypeReference itf in ty.Interfaces)
         {
             ITypeDefinition itfD = itf.ResolvedType;
             ProcessStaticConstructors(itfD);
         }
     }
 }
Exemplo n.º 2
0
        public MethodCfgAndTac AnalyzeIntraProcedural(IMethodDefinition methodDefinition)
        {
            // System.Console.WriteLine("Traversing: {0}", methodDefinition.GetName());
            if (Stubber.SuppressM(methodDefinition))
            {
                return(null);
            }
            if (methodDefinition.IsExternal)
            {
                return(null);
            }
            if (methodDefinition.IsAbstract)
            {
                return(null);
            }

            ITypeDefinition         containingDefn         = methodDefinition.ContainingTypeDefinition;
            ISourceLocationProvider sourceLocationProvider = null;

            if (containingDefn != null)
            {
                IModule mod = TypeHelper.GetDefiningUnit(containingDefn) as IModule;
                if (moduleToPdbMap.ContainsKey(mod))
                {
                    sourceLocationProvider = moduleToPdbMap[mod];
                }
                else
                {
                    if (!(mod == null || mod == Dummy.Module || mod == Dummy.Assembly))
                    {
                        sourceLocationProvider = GetPdbReader(mod.Location);
                        moduleToPdbMap[mod]    = sourceLocationProvider;
                    }
                }
            }
            var disassembler = new Disassembler(host, methodDefinition, sourceLocationProvider);
            var methodBody   = disassembler.Execute();

            var cfAnalysis = new ControlFlowAnalysis(methodBody);
            // var cfg = cfAnalysis.GenerateNormalControlFlow();
            var cfg = cfAnalysis.GenerateExceptionalControlFlow();

            var domAnalysis = new DominanceAnalysis(cfg);

            domAnalysis.Analyze();
            domAnalysis.GenerateDominanceTree();

            var loopAnalysis = new NaturalLoopAnalysis(cfg);

            loopAnalysis.Analyze();

            var domFrontierAnalysis = new DominanceFrontierAnalysis(cfg);

            domFrontierAnalysis.Analyze();

            var splitter = new WebAnalysis(cfg, methodDefinition);

            splitter.Analyze();
            splitter.Transform();

            methodBody.UpdateVariables();

            var typeAnalysis = new TypeInferenceAnalysis(cfg, methodDefinition.Type);

            typeAnalysis.Analyze();

            var forwardCopyAnalysis = new ForwardCopyPropagationAnalysis(cfg);

            forwardCopyAnalysis.Analyze();
            forwardCopyAnalysis.Transform(methodBody);

            // backwardCopyAnalysis is buggy - it says so in the source file - see notes in src/test
            // var backwardCopyAnalysis = new BackwardCopyPropagationAnalysis(cfg);
            // backwardCopyAnalysis.Analyze();
            // backwardCopyAnalysis.Transform(methodBody);

            var liveVariables = new LiveVariablesAnalysis(cfg);

            liveVariables.Analyze();

            var ssa = new StaticSingleAssignment(methodBody, cfg);

            ssa.Transform();
            ssa.Prune(liveVariables);

            methodBody.UpdateVariables();

            MethodCfgAndTac mct = new MethodCfgAndTac(cfg, methodBody);

            foreach (IExceptionHandlerBlock ehInfo in disassembler.GetExceptionHandlers())
            {
                if (ehInfo is CatchExceptionHandler)
                {
                    mct.ehInfoList.Add(ehInfo as CatchExceptionHandler);
                }
            }
            return(mct);
        }
Exemplo n.º 3
0
        public void ProcessVirtualInvoke(IMethodDefinition mCallee, ITypeDefinition calleeClass, bool isAddrTaken)
        {
            // mCallee is an ordinary method - never a template method.
            // calleeClass and mCallee are either both stubbed or, both unstubbed - i.e. they are consistent.
            bool isInterface = calleeClass.IsInterface;

            IMethodDefinition calleeTemplate = null;

            if (mCallee is IGenericMethodInstance)
            {
                calleeTemplate = (mCallee as IGenericMethodInstance).GenericMethod.ResolvedMethod;
            }

            foreach (ITypeDefinition cl in allocClasses)
            {
                if (cl is IArrayTypeReference)
                {
                    continue;
                }
                if (!Stubber.SuppressM(cl))
                {
                    bool process = false;
                    if (isInterface && Utils.ImplementsInterface(cl, calleeClass))
                    {
                        process = true;
                    }
                    if (Utils.ExtendsClass(cl, calleeClass))
                    {
                        process = true;
                    }
                    if (!process)
                    {
                        continue;
                    }
                    IMethodDefinition calleeArg;
                    if (mCallee is IGenericMethodInstance)
                    {
                        calleeArg = calleeTemplate;
                    }
                    else
                    {
                        calleeArg = mCallee;
                    }
                    IMethodDefinition meth = Utils.GetMethodSignMatchRecursive(cl, calleeArg);
                    if (meth == null)
                    {
                        continue;
                    }
                    if (meth.IsGeneric && calleeTemplate != null)
                    {
                        IMethodDefinition instMeth  = GenericMethods.RecordInfo(meth, mCallee, /* createIfReqd = */ true);
                        IMethodDefinition addedMeth = Stubber.CheckAndAdd(instMeth);
                        if (addedMeth != null && isAddrTaken)
                        {
                            addrTakenMethods.Add(addedMeth);
                        }
                    }
                    else if (meth.IsGeneric && calleeTemplate == null)
                    {
                        continue;
                    }
                    else if (!meth.IsGeneric && calleeTemplate != null)
                    {
                        continue;
                    }
                    else // meth is not generic and calleeTemplate is null
                    {
                        IMethodDefinition addedMeth = Stubber.CheckAndAdd(meth);
                        if (addedMeth != null && isAddrTaken)
                        {
                            addrTakenMethods.Add(addedMeth);
                        }
                    }
                }
            }
        }