private void RunTest(Program program, string outputFile)
{
EquivalenceClassBuilder eqb = new EquivalenceClassBuilder(factory, store);
DataTypeBuilder dtb = new DataTypeBuilder(factory, store, program.Platform);
eqb.Build(program);
TraitCollector trco = new TraitCollector(factory, store, dtb, program);
trco.CollectProgramTraits(program);
dtb.BuildEquivalenceClassDataTypes();
var tv = new TypeVariableReplacer(store);
tv.ReplaceTypeVariables();
store.CopyClassDataTypesToTypeVariables();
var ppr = new PtrPrimitiveReplacer(factory, store, program);
ppr.ReplaceAll(new FakeDecompilerEventListener());
var cpa = new ConstantPointerAnalysis(factory, store, program);
cpa.FollowConstantPointers();
Verify(null, outputFile);
}
protected override void RunTest(Program prog, string outputFilename)
{
TypeFactory factory = new TypeFactory();
store = new TypeStore();
EquivalenceClassBuilder eqb = new EquivalenceClassBuilder(factory, store);
eqb.Build(prog);
DataTypeBuilder dtb = new DataTypeBuilder(factory, store, prog.Platform);
TraitCollector trco = new TraitCollector(factory, store, dtb, prog);
trco.CollectProgramTraits(prog);
dtb.BuildEquivalenceClassDataTypes();
store.CopyClassDataTypesToTypeVariables();
TypeVariableReplacer tvr = new TypeVariableReplacer(store);
tvr.ReplaceTypeVariables();
PtrPrimitiveReplacer ppr = new PtrPrimitiveReplacer(factory, store, prog);
ppr.ReplaceAll(new FakeDecompilerEventListener());
Verify(prog, outputFilename);
}
/// <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);
dtb = new DataTypeBuilder(factory, store, program.Platform);
trco = new TraitCollector(factory, store, dtb, program);
//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);
eventListener.ShowStatus("Collecting datatype usage traits.");
trco.CollectProgramTraits(program);
eventListener.ShowStatus("Building equivalence classes.");
dtb.BuildEquivalenceClassDataTypes();
//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);
}
public void PprReplaceInts()
{
var arch = new FakeArchitecture();
var program = new Program { Architecture = arch, Platform = new DefaultPlatform(null, arch) };
TypeFactory factory = new TypeFactory();
store = new TypeStore();
TypeVariable tv1 = store.CreateTypeVariable(factory);
TypeVariable tv2 = store.CreateTypeVariable(factory);
Assert.IsNotNull(tv1.Class, "Expected store.EnsureTypeVariable to create equivalence class");
Assert.IsNotNull(tv2.Class, "Expected store.EnsureTypeVariable to create equivalence class");
tv1.Class.DataType = PrimitiveType.Word32;
tv2.Class.DataType = PrimitiveType.Word16;
program.Globals.TypeVariable = store.CreateTypeVariable(factory);
program.Globals.DataType = factory.CreateStructureType();
TypeVariable tv3 = store.CreateTypeVariable(factory);
Assert.IsNotNull(tv3.Class, "Expected store.EnsureTypeVariable to create equivalence class");
StructureType mem = factory.CreateStructureType(null, 0);
mem.Fields.Add(0, tv1);
mem.Fields.Add(4, tv2);
tv3.Class.DataType = factory.CreatePointer(mem, 4);
store.CopyClassDataTypesToTypeVariables();
TypeVariableReplacer tvr = new TypeVariableReplacer(store);
tvr.ReplaceTypeVariables();
var ppr = new PtrPrimitiveReplacer(factory, store, program);
ppr.ReplaceAll();
Verify(null, "Typing/PprReplaceInts.txt");
}
public void PprRecursiveStructs()
{
StructureType s1 = new StructureType(null, 0, true);
StructureType s2 = new StructureType(null, 0, true);
s1.Fields.Add(0, new Pointer(s2, 4));
s2.Fields.Add(0, new Pointer(s1, 4));
var program = new Program();
var factory = new TypeFactory();
var store = new TypeStore();
var ppr = new PtrPrimitiveReplacer(factory, store, program);
var sExp = "(struct (0 (ptr (struct (0 (ptr (struct)) ptr0000))) ptr0000))";
Assert.AreEqual(sExp, ppr.Replace(s1).ToString());
Assert.AreEqual(sExp, ppr.Replace(s2).ToString());
}
