Пример #1
0
        /// <summary>
        /// Parse a single available types section. For composite R2R images this method is called multiple times
        /// as available types are stored separately for each component assembly of the composite R2R executable.
        /// </summary>
        /// <param name="availableTypesSection"></param>
        private void ParseAvailableTypesSection(ReadyToRunSection availableTypesSection, MetadataReader metadataReader)
        {
            int             availableTypesOffset = GetOffset(availableTypesSection.RelativeVirtualAddress);
            NativeParser    parser         = new NativeParser(Image, (uint)availableTypesOffset);
            NativeHashtable availableTypes = new NativeHashtable(Image, parser, (uint)(availableTypesOffset + availableTypesSection.Size));

            NativeHashtable.AllEntriesEnumerator allEntriesEnum = availableTypes.EnumerateAllEntries();
            NativeParser curParser = allEntriesEnum.GetNext();

            while (!curParser.IsNull())
            {
                uint rid = curParser.GetUnsigned();

                bool isExportedType = (rid & 1) != 0;
                rid = rid >> 1;

                if (isExportedType)
                {
                    ExportedTypeHandle exportedTypeHandle = MetadataTokens.ExportedTypeHandle((int)rid);
                    string             exportedTypeName   = GetExportedTypeFullName(metadataReader, exportedTypeHandle);
                    _availableTypes.Add("exported " + exportedTypeName);
                }
                else
                {
                    TypeDefinitionHandle typeDefHandle = MetadataTokens.TypeDefinitionHandle((int)rid);
                    string typeDefName = MetadataNameFormatter.FormatHandle(metadataReader, typeDefHandle);
                    _availableTypes.Add(typeDefName);
                }

                curParser = allEntriesEnum.GetNext();
            }
        }
Пример #2
0
        /// <summary>
        /// Initialize generic method instances with argument types and runtime function indices from InstanceMethodEntrypoints
        /// </summary>
        private void ParseInstanceMethodEntrypointsCustom <TType, TMethod, TGenericContext>(IR2RSignatureTypeProvider <TType, TMethod, TGenericContext> provider, Dictionary <TMethod, ReadyToRunMethod> foundMethods)
        {
            if (!ReadyToRunHeader.Sections.TryGetValue(ReadyToRunSectionType.InstanceMethodEntryPoints, out ReadyToRunSection instMethodEntryPointSection))
            {
                return;
            }
            int             instMethodEntryPointsOffset = GetOffset(instMethodEntryPointSection.RelativeVirtualAddress);
            NativeParser    parser = new NativeParser(Image, (uint)instMethodEntryPointsOffset);
            NativeHashtable instMethodEntryPoints = new NativeHashtable(Image, parser, (uint)(instMethodEntryPointsOffset + instMethodEntryPointSection.Size));

            NativeHashtable.AllEntriesEnumerator allEntriesEnum = instMethodEntryPoints.EnumerateAllEntries();
            NativeParser curParser = allEntriesEnum.GetNext();

            while (!curParser.IsNull())
            {
                IAssemblyMetadata mdReader = GetGlobalMetadata();
                var decoder = new R2RSignatureDecoder <TType, TMethod, TGenericContext>(provider, default(TGenericContext), mdReader.MetadataReader, this, (int)curParser.Offset);

                TMethod customMethod = decoder.ParseMethod();

                int runtimeFunctionId;
                int?fixupOffset;
                GetRuntimeFunctionIndexFromOffset((int)decoder.Offset, out runtimeFunctionId, out fixupOffset);
                ReadyToRunMethod r2rMethod = _runtimeFunctionToMethod[runtimeFunctionId];
                if (!Object.ReferenceEquals(customMethod, null) && !foundMethods.ContainsKey(customMethod))
                {
                    foundMethods.Add(customMethod, r2rMethod);
                }
                foundMethods.Add(customMethod, r2rMethod);
                curParser = allEntriesEnum.GetNext();
            }
        }
Пример #3
0
        /// <summary>
        /// Iterates through a native hashtable to get all RIDs
        /// </summary>
        private void ParseAvailableTypes()
        {
            if (!R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_AVAILABLE_TYPES))
            {
                return;
            }

            R2RSection      availableTypesSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_AVAILABLE_TYPES];
            int             availableTypesOffset  = GetOffset(availableTypesSection.RelativeVirtualAddress);
            NativeParser    parser         = new NativeParser(Image, (uint)availableTypesOffset);
            NativeHashtable availableTypes = new NativeHashtable(Image, parser, (uint)(availableTypesOffset + availableTypesSection.Size));

            NativeHashtable.AllEntriesEnumerator allEntriesEnum = availableTypes.EnumerateAllEntries();
            NativeParser curParser = allEntriesEnum.GetNext();

            while (!curParser.IsNull())
            {
                uint rid = curParser.GetUnsigned();

                bool isExportedType = (rid & 1) != 0;
                rid = rid >> 1;

                if (isExportedType)
                {
                    ExportedTypeHandle exportedTypeHandle = MetadataTokens.ExportedTypeHandle((int)rid);
                    string             exportedTypeName   = GetExportedTypeFullName(MetadataReader, exportedTypeHandle);
                    AvailableTypes.Add("exported " + exportedTypeName);
                }
                else
                {
                    TypeDefinitionHandle typeDefHandle = MetadataTokens.TypeDefinitionHandle((int)rid);
                    string typeDefName = MetadataNameFormatter.FormatHandle(MetadataReader, typeDefHandle);
                    AvailableTypes.Add(typeDefName);
                }

                curParser = allEntriesEnum.GetNext();
            }
        }
Пример #4
0
        /// <summary>
        /// Initialize generic method instances with argument types and runtime function indices from InstanceMethodEntrypoints
        /// </summary>
        private void ParseInstanceMethodEntrypoints(bool[] isEntryPoint)
        {
            if (!ReadyToRunHeader.Sections.TryGetValue(ReadyToRunSectionType.InstanceMethodEntryPoints, out ReadyToRunSection instMethodEntryPointSection))
            {
                return;
            }
            int             instMethodEntryPointsOffset = GetOffset(instMethodEntryPointSection.RelativeVirtualAddress);
            NativeParser    parser = new NativeParser(Image, (uint)instMethodEntryPointsOffset);
            NativeHashtable instMethodEntryPoints = new NativeHashtable(Image, parser, (uint)(instMethodEntryPointsOffset + instMethodEntryPointSection.Size));

            NativeHashtable.AllEntriesEnumerator allEntriesEnum = instMethodEntryPoints.EnumerateAllEntries();
            NativeParser curParser = allEntriesEnum.GetNext();

            while (!curParser.IsNull())
            {
                MetadataReader   mdReader = _composite ? null : _assemblyCache[0];
                SignatureDecoder decoder  = new SignatureDecoder(_assemblyResolver, mdReader, this, (int)curParser.Offset);

                string owningType = null;

                uint methodFlags = decoder.ReadUInt();
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType) != 0)
                {
                    mdReader = decoder.GetMetadataReaderFromModuleOverride() ?? mdReader;
                    if ((_composite) && mdReader == null)
                    {
                        // The only types that don't have module overrides on them in composite images are primitive types within the system module
                        mdReader = GetSystemModuleMetadataReader();
                    }
                    owningType = decoder.ReadTypeSignatureNoEmit();
                }
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_SlotInsteadOfToken) != 0)
                {
                    throw new NotImplementedException();
                }
                EntityHandle methodHandle;
                int          rid = (int)decoder.ReadUInt();
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken) != 0)
                {
                    methodHandle = MetadataTokens.MemberReferenceHandle(rid);
                }
                else
                {
                    methodHandle = MetadataTokens.MethodDefinitionHandle(rid);
                }
                string[] methodTypeArgs = null;
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MethodInstantiation) != 0)
                {
                    uint typeArgCount = decoder.ReadUInt();
                    methodTypeArgs = new string[typeArgCount];
                    for (int typeArgIndex = 0; typeArgIndex < typeArgCount; typeArgIndex++)
                    {
                        methodTypeArgs[typeArgIndex] = decoder.ReadTypeSignatureNoEmit();
                    }
                }

                string constrainedType = null;
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_Constrained) != 0)
                {
                    constrainedType = decoder.ReadTypeSignatureNoEmit();
                }

                int runtimeFunctionId;
                int?fixupOffset;
                GetRuntimeFunctionIndexFromOffset((int)decoder.Offset, out runtimeFunctionId, out fixupOffset);
                ReadyToRunMethod method = new ReadyToRunMethod(
                    this,
                    _methods.Count,
                    mdReader,
                    methodHandle,
                    runtimeFunctionId,
                    owningType,
                    constrainedType,
                    methodTypeArgs,
                    fixupOffset);
                if (method.EntryPointRuntimeFunctionId >= 0 && method.EntryPointRuntimeFunctionId < isEntryPoint.Length)
                {
                    isEntryPoint[method.EntryPointRuntimeFunctionId] = true;
                }
                if (!Methods.TryGetValue(instMethodEntryPointSection, out List <ReadyToRunMethod> sectionMethods))
                {
                    sectionMethods = new List <ReadyToRunMethod>();
                    Methods.Add(instMethodEntryPointSection, sectionMethods);
                }
                sectionMethods.Add(method);
                _instanceMethods.Add(new InstanceMethod(curParser.LowHashcode, method));
                curParser = allEntriesEnum.GetNext();
            }
        }
Пример #5
0
        /// <summary>
        /// Initialize generic method instances with argument types and runtime function indices from InstanceMethodEntrypoints
        /// </summary>
        private void ParseInstanceMethodEntrypoints(bool[] isEntryPoint)
        {
            if (!R2RHeader.Sections.ContainsKey(R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS))
            {
                return;
            }
            R2RSection      instMethodEntryPointSection = R2RHeader.Sections[R2RSection.SectionType.READYTORUN_SECTION_INSTANCE_METHOD_ENTRYPOINTS];
            int             instMethodEntryPointsOffset = GetOffset(instMethodEntryPointSection.RelativeVirtualAddress);
            NativeParser    parser = new NativeParser(Image, (uint)instMethodEntryPointsOffset);
            NativeHashtable instMethodEntryPoints = new NativeHashtable(Image, parser, (uint)(instMethodEntryPointsOffset + instMethodEntryPointSection.Size));

            NativeHashtable.AllEntriesEnumerator allEntriesEnum = instMethodEntryPoints.EnumerateAllEntries();
            NativeParser curParser = allEntriesEnum.GetNext();

            while (!curParser.IsNull())
            {
                SignatureDecoder decoder  = new SignatureDecoder(_assemblyResolver, this, (int)curParser.Offset);
                MetadataReader   mdReader = MetadataReader;

                string owningType = null;

                uint methodFlags = decoder.ReadUInt();
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_OwnerType) != 0)
                {
                    mdReader   = decoder.GetMetadataReaderFromModuleOverride();
                    owningType = decoder.ReadTypeSignatureNoEmit();
                }
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_SlotInsteadOfToken) != 0)
                {
                    throw new NotImplementedException();
                }
                EntityHandle methodHandle;
                int          rid = (int)decoder.ReadUInt();
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MemberRefToken) != 0)
                {
                    methodHandle = MetadataTokens.MemberReferenceHandle(rid);
                }
                else
                {
                    methodHandle = MetadataTokens.MethodDefinitionHandle(rid);
                }
                string[] methodTypeArgs = null;
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_MethodInstantiation) != 0)
                {
                    uint typeArgCount = decoder.ReadUInt();
                    methodTypeArgs = new string[typeArgCount];
                    for (int typeArgIndex = 0; typeArgIndex < typeArgCount; typeArgIndex++)
                    {
                        methodTypeArgs[typeArgIndex] = decoder.ReadTypeSignatureNoEmit();
                    }
                }

                string constrainedType = null;
                if ((methodFlags & (uint)ReadyToRunMethodSigFlags.READYTORUN_METHOD_SIG_Constrained) != 0)
                {
                    constrainedType = decoder.ReadTypeSignatureNoEmit();
                }

                int         runtimeFunctionId;
                FixupCell[] fixups;
                GetRuntimeFunctionIndexFromOffset((int)decoder.Offset, out runtimeFunctionId, out fixups);
                R2RMethod method = new R2RMethod(
                    R2RMethods.Count,
                    mdReader == null ? MetadataReader : mdReader,
                    methodHandle,
                    runtimeFunctionId,
                    owningType,
                    constrainedType,
                    methodTypeArgs,
                    fixups);
                if (method.EntryPointRuntimeFunctionId >= 0 && method.EntryPointRuntimeFunctionId < isEntryPoint.Length)
                {
                    isEntryPoint[method.EntryPointRuntimeFunctionId] = true;
                }
                R2RMethods.Add(method);
                InstanceMethods.Add(new InstanceMethod(curParser.LowHashcode, method));
                curParser = allEntriesEnum.GetNext();
            }
        }