Exemple #1
0
		/// <summary>
		/// Performs type analysis and rewrites program based on the inferred
        /// information.
		/// </summary>
		/// <remarks>
		/// For instance, all MemoryAccesses will be converted to structure
        /// field accesses or array accesses as appropriate.
		/// </remarks>
		/// <param name="program"></param>
		public void RewriteProgram(Program program)
		{
            factory = program.TypeFactory;
            store = program.TypeStore;

            aen = new ExpressionNormalizer(program.Platform.PointerType);
            eqb = new EquivalenceClassBuilder(factory, store, eventListener);
            tyco = new TypeCollector(
                program.TypeFactory, program.TypeStore, program,
                eventListener);
            //dpa = new DerivedPointerAnalysis(factory, store, program.Architecture);
            tvr = new TypeVariableReplacer(store);
            trans = new TypeTransformer(factory, store,program, eventListener);
            ctn = new ComplexTypeNamer();
            ter = new TypedExpressionRewriter(program, eventListener);

            // RestrictProcedures(program, 0, 60, true); // Re-enable this for debugging
			aen.Transform(program);
            eqb.Build(program);

            tyco.CollectTypes();
            store.BuildEquivalenceClassDataTypes(factory);
            //dpa.FollowConstantPointers(prog);
            tvr.ReplaceTypeVariables();

            eventListener.ShowStatus("Transforming datatypes.");
			var ppr = new PtrPrimitiveReplacer(factory, store, program);
			ppr.ReplaceAll(eventListener);

			trans.Transform();
			ctn.RenameAllTypes(store);
			ter.RewriteProgram(program);
		}
Exemple #2
0
        /// <summary>
        /// Performs type analysis and rewrites program based on the inferred information.
        /// </summary>
        /// <remarks>
        /// For instance, all MemoryAccesses will be converted to structure field
        /// accesses or array accesses as appropriate.
        /// </remarks>
        /// <param name="program"></param>
        public void RewriteProgram(Program program)
        {
            factory = program.TypeFactory;
            store   = program.TypeStore;

            aen = new ExpressionNormalizer(program.Platform.PointerType);
            eqb = new EquivalenceClassBuilder(factory, store);
#if OLD
            dtb  = new DataTypeBuilder(factory, store, program.Platform);
            trco = new TraitCollector(factory, store, dtb, program);
#else
            tyco = new TypeCollector(program.TypeFactory, program.TypeStore, program);
#endif
            //dpa = new DerivedPointerAnalysis(factory, store, program.Architecture);
            tvr   = new TypeVariableReplacer(store);
            trans = new TypeTransformer(factory, store, program, eventListener);
            ctn   = new ComplexTypeNamer();
            ter   = new TypedExpressionRewriter(program);

            // RestrictProcedures(program, 0, 1, true); // Re-enable this for debugging
            eventListener.ShowStatus("Gathering primitive datatypes from instructions.");
            aen.Transform(program);
            eqb.Build(program);
#if OLD
            eventListener.ShowStatus("Collecting datatype usage traits.");
            trco.CollectProgramTraits(program);
            eventListener.ShowStatus("Building equivalence classes.");
            dtb.BuildEquivalenceClassDataTypes();
#else
            eventListener.ShowStatus("Collecting data types");
            tyco.CollectTypes();
            store.BuildEquivalenceClassDataTypes(factory);
#endif
            //dpa.FollowConstantPointers(prog);
            tvr.ReplaceTypeVariables();

            eventListener.ShowStatus("Transforming datatypes.");
            var ppr = new PtrPrimitiveReplacer(factory, store, program);
            ppr.ReplaceAll();

            trans.Transform();
            ctn.RenameAllTypes(store);
            store.Dump();
            eventListener.ShowStatus("Rewriting expressions.");
            ter.RewriteProgram(program);
        }
Exemple #3
0
        /// <summary>
        /// Performs type analysis and rewrites program based on the inferred
        /// information.
        /// </summary>
        /// <remarks>
        /// For instance, all MemoryAccesses will be converted to structure
        /// field accesses or array accesses as appropriate.
        /// </remarks>
        /// <param name="program"></param>
        public void RewriteProgram(Program program)
        {
            factory = program.TypeFactory;
            store   = program.TypeStore;
            var timer = new Stopwatch();

            aen  = new ExpressionNormalizer(program.Platform.PointerType);
            eqb  = new EquivalenceClassBuilder(factory, store, eventListener);
            tyco = new TypeCollector(
                program.TypeFactory, program.TypeStore, program,
                eventListener);
            //dpa = new DerivedPointerAnalysis(factory, store, program.Architecture);
            tvr   = new TypeVariableReplacer(store);
            trans = new TypeTransformer(factory, store, program, eventListener);
            ctn   = new ComplexTypeNamer();
            ter   = new TypedExpressionRewriter(program, eventListener);

            // RestrictProcedures(program, 0, 60, true); // Re-enable this for debugging
            Time("Normalizing expressions", () => aen.Transform(program));
            Time("Building equivalence classes", () => eqb.Build(program));
            Time("Collecting data types", tyco.CollectTypes);
            Time("Build eq. class data types", () => store.BuildEquivalenceClassDataTypes(factory));
            //dpa.FollowConstantPointers(program);
            Time("Replacing type variables", tvr.ReplaceTypeVariables);

            eventListener.ShowStatus("Transforming datatypes.");
            Time("Replace primitive types", () =>
            {
                var ppr = new PtrPrimitiveReplacer(factory, store, program);
                ppr.ReplaceAll(eventListener);
            });

            Time("Transforming data types", trans.Transform);
            Time("Renaming data types", () => ctn.RenameAllTypes(store));
            Time("Rewriting program with type information", () => ter.RewriteProgram(program));
        }