public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
if (factory.Target.Abi == TargetAbi.CoreRT)
{
int delta = GCStaticRegionConstants.Uninitialized;
// Set the flag that indicates next pointer following EEType is the preinit data
if (_preInitFieldInfos != null)
{
delta |= GCStaticRegionConstants.HasPreInitializedData;
}
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory), delta);
if (_preInitFieldInfos != null)
{
builder.EmitPointerReloc(factory.GCStaticsPreInitDataNode(_type));
}
}
else
{
builder.RequireInitialAlignment(_type.GCStaticFieldAlignment.AsInt);
// @TODO - emit the frozen array node reloc
builder.EmitZeros(_type.GCStaticFieldSize.AsInt);
}
builder.AddSymbol(this);
return(builder.ToObjectData());
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
dataBuilder.EmitZeroPointer(); // Sync block
DefType systemStringType = factory.TypeSystemContext.GetWellKnownType(WellKnownType.String);
//
// The GC requires a direct reference to frozen objects' EETypes. If System.String will be compiled into a separate
// binary, it must be cloned into this one.
//
if (factory.CompilationModuleGroup.ShouldReferenceThroughImportTable(systemStringType))
{
dataBuilder.EmitPointerReloc(factory.ConstructedClonedTypeSymbol(systemStringType));
}
else
{
dataBuilder.EmitPointerReloc(factory.ConstructedTypeSymbol(systemStringType));
}
dataBuilder.EmitInt(_data.Length);
foreach (char c in _data)
{
dataBuilder.EmitShort((short)c);
}
// Null-terminate for friendliness with interop
dataBuilder.EmitShort(0);
}
private void OutputGenericInstantiationDetails(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (_type.HasInstantiation && !_type.IsTypeDefinition)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type.GetTypeDefinition()));
GenericCompositionDetails details;
if (_type.GetTypeDefinition() == factory.ArrayOfTEnumeratorType)
{
// Generic array enumerators use special variance rules recognized by the runtime
details = new GenericCompositionDetails(_type.Instantiation, new[] { GenericVariance.ArrayCovariant });
}
else if (factory.TypeSystemContext.IsGenericArrayInterfaceType(_type))
{
// Runtime casting logic relies on all interface types implemented on arrays
// to have the variant flag set (even if all the arguments are non-variant).
// This supports e.g. casting uint[] to ICollection<int>
details = new GenericCompositionDetails(_type, forceVarianceInfo: true);
}
else
{
details = new GenericCompositionDetails(_type);
}
objData.EmitPointerReloc(factory.GenericComposition(details));
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
//
// Emit a MethodFixupCell struct
//
// Address (to be fixed up at runtime)
builder.EmitZeroPointer();
// Entry point name
if (factory.Target.IsWindows && _entryPointName.StartsWith("#", StringComparison.OrdinalIgnoreCase))
{
// Windows-specific ordinal import
// CLR-compatible behavior: Strings that can't be parsed as a signed integer are treated as zero.
int entrypointOrdinal;
if (!int.TryParse(_entryPointName.Substring(1), out entrypointOrdinal))
entrypointOrdinal = 0;
// CLR-compatible behavior: Ordinal imports are 16-bit on Windows. Discard rest of the bits.
builder.EmitNaturalInt((ushort)entrypointOrdinal);
}
else
{
// Import by name
builder.EmitPointerReloc(factory.ConstantUtf8String(_entryPointName));
}
// Module fixup cell
builder.EmitPointerReloc(factory.PInvokeModuleFixup(_moduleName));
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
var builder = new ObjectDataBuilder(factory);
// These need to be aligned the same as methods because they show up in same contexts
builder.RequireAlignment(factory.Target.MinimumFunctionAlignment);
builder.DefinedSymbols.Add(this);
MethodDesc canonMethod = Method.GetCanonMethodTarget(CanonicalFormKind.Specific);
// Pointer to the canonical body of the method
builder.EmitPointerReloc(factory.MethodEntrypoint(canonMethod));
// Find out what's the context to use
ISymbolNode contextParameter;
if (canonMethod.RequiresInstMethodDescArg())
{
contextParameter = factory.MethodGenericDictionary(Method);
}
else
{
Debug.Assert(canonMethod.RequiresInstMethodTableArg());
// Ask for a constructed type symbol because we need the vtable to get to the dictionary
contextParameter = factory.ConstructedTypeSymbol(Method.OwningType);
}
// The next entry is a pointer to the pointer to the context to be used for the canonical method
// TODO: in multi-module, this points to the import cell, and is no longer this weird pointer
builder.EmitPointerReloc(factory.Indirection(contextParameter));
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
int delta = GCStaticRegionConstants.Uninitialized;
// Set the flag that indicates next pointer following EEType is the preinit data
bool isPreinitialized = _preinitializationInfo != null && _preinitializationInfo.IsPreinitialized;
if (isPreinitialized)
{
delta |= GCStaticRegionConstants.HasPreInitializedData;
}
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory), delta);
if (isPreinitialized)
{
builder.EmitPointerReloc(factory.GCStaticsPreInitDataNode(_type));
}
builder.AddSymbol(this);
return(builder.ToObjectData());
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
dataBuilder.EmitZeroPointer(); // Sync block
DefType systemStringType = factory.TypeSystemContext.GetWellKnownType(WellKnownType.String);
//
// The GC requires a direct reference to frozen objects' EETypes. If System.String will be compiled into a separate
// binary, it must be cloned into this one.
//
if (factory.CompilationModuleGroup.ShouldReferenceThroughImportTable(systemStringType))
{
dataBuilder.EmitPointerReloc(factory.ConstructedClonedTypeSymbol(systemStringType));
}
else
{
dataBuilder.EmitPointerReloc(factory.ConstructedTypeSymbol(systemStringType));
}
dataBuilder.EmitInt(_data.Length);
foreach (char c in _data)
{
dataBuilder.EmitShort((short)c);
}
// Null-terminate for friendliness with interop
dataBuilder.EmitShort(0);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
var builder = new ObjectDataBuilder(factory);
// These need to be aligned the same as methods because they show up in same contexts
builder.RequireAlignment(factory.Target.MinimumFunctionAlignment);
builder.DefinedSymbols.Add(this);
MethodDesc canonMethod = Method.GetCanonMethodTarget(CanonicalFormKind.Specific);
// Pointer to the canonical body of the method
builder.EmitPointerReloc(factory.MethodEntrypoint(canonMethod));
// Find out what's the context to use
GenericDictionaryNode dictionary;
if (canonMethod.RequiresInstMethodDescArg())
{
dictionary = factory.MethodGenericDictionary(Method);
}
else
{
Debug.Assert(canonMethod.RequiresInstMethodTableArg());
dictionary = factory.TypeGenericDictionary(Method.OwningType);
}
// The next entry is a pointer to the pointer to the context to be used for the canonical method
// TODO: in multi-module, this points to the import cell, and is no longer this weird pointer
builder.EmitPointerReloc(factory.Indirection(dictionary));
return(builder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.AddSymbol(this);
ISymbolNode nameSymbol = factory.ConstantUtf8String(_pInvokeModuleData.ModuleName);
ISymbolNode moduleTypeSymbol = factory.NecessaryTypeSymbol(_pInvokeModuleData.DeclaringModule.GetGlobalModuleType());
//
// Emit a ModuleFixupCell struct
//
builder.EmitZeroPointer();
builder.EmitPointerReloc(nameSymbol);
builder.EmitPointerReloc(moduleTypeSymbol);
uint dllImportSearchPath = 0;
if (_pInvokeModuleData.DllImportSearchPath.HasValue)
{
dllImportSearchPath = (uint)_pInvokeModuleData.DllImportSearchPath.Value;
Debug.Assert((dllImportSearchPath & InteropDataConstants.HasDllImportSearchPath) == 0);
dllImportSearchPath |= InteropDataConstants.HasDllImportSearchPath;
}
builder.EmitInt((int)dllImportSearchPath);
return(builder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
// The interface dispatch cell has an alignment requirement of 2 * [Pointer size] as part of the
// synchronization mechanism of the two values in the runtime.
objData.Alignment = _targetMethod.Context.Target.PointerSize * 2;
objData.DefinedSymbols.Add(this);
objData.EmitPointerReloc(factory.ExternSymbol("RhpInitialDynamicInterfaceDispatch"));
// The second cell field uses the two lower-order bits to communicate the contents.
// We add 1 to signal IDC_CachePointerIsInterfacePointer. See src\Native\Runtime\inc\rhbinder.h.
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_targetMethod.OwningType), 1);
// End the run of dispatch cells
objData.EmitZeroPointer();
// Avoid consulting VTable slots until they're guaranteed complete during final data emission
if (!relocsOnly)
{
int interfaceMethodSlot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, _targetMethod);
if (factory.Target.PointerSize == 8)
{
objData.EmitLong(interfaceMethodSlot);
}
else
{
throw new NotImplementedException();
}
}
return objData.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
// The interface dispatch cell has an alignment requirement of 2 * [Pointer size] as part of the
// synchronization mechanism of the two values in the runtime.
objData.Alignment = _targetMethod.Context.Target.PointerSize * 2;
objData.DefinedSymbols.Add(this);
objData.EmitPointerReloc(factory.ExternSymbol("RhpInitialDynamicInterfaceDispatch"));
// The second cell field uses the two lower-order bits to communicate the contents.
// We add 1 to signal IDC_CachePointerIsInterfacePointer. See src\Native\Runtime\inc\rhbinder.h.
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_targetMethod.OwningType), 1);
// End the run of dispatch cells
objData.EmitZeroPointer();
int interfaceMethodSlot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, _targetMethod);
if (factory.Target.PointerSize == 8)
{
objData.EmitLong(interfaceMethodSlot);
}
else
{
throw new NotImplementedException();
}
return(objData.ToObjectData());
}
public override void EncodeData(ref ObjectDataBuilder objData, NodeFactory factory, bool relocsOnly)
{
TargetArchitecture targetArchitecture = factory.Target.Architecture;
if (targetArchitecture == TargetArchitecture.ARM)
{
objData.EmitPointerReloc(factory.InitialInterfaceDispatchStub);
}
else
{
objData.EmitPointerReloc(factory.ExternSymbol("RhpInitialDynamicInterfaceDispatch"));
}
IEETypeNode interfaceType = factory.NecessaryTypeSymbol(_targetMethod.OwningType);
if (interfaceType.RepresentsIndirectionCell)
{
objData.EmitReloc(interfaceType, RelocType.IMAGE_REL_BASED_RELPTR32,
(int)InterfaceDispatchCellCachePointerFlags.CachePointerIsIndirectedInterfaceRelativePointer);
}
else
{
objData.EmitReloc(interfaceType, RelocType.IMAGE_REL_BASED_RELPTR32,
(int)InterfaceDispatchCellCachePointerFlags.CachePointerIsInterfaceRelativePointer);
}
if (objData.TargetPointerSize == 8)
{
// IMAGE_REL_BASED_RELPTR is a 32-bit relocation. However, the cell needs a full pointer
// width there since a pointer to the cache will be written into the cell. Emit additional
// 32 bits on targets whose pointer size is 64 bit.
objData.EmitInt(0);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
var builder = new ObjectDataBuilder(factory, relocsOnly);
// These need to be aligned the same as methods because they show up in same contexts
builder.RequireInitialAlignment(factory.Target.MinimumFunctionAlignment);
builder.AddSymbol(this);
MethodDesc canonMethod = Method.GetCanonMethodTarget(CanonicalFormKind.Specific);
// Pointer to the canonical body of the method
builder.EmitPointerReloc(factory.MethodEntrypoint(canonMethod, _isUnboxingStub));
// Find out what's the context to use
ISymbolNode contextParameter;
if (canonMethod.RequiresInstMethodDescArg())
{
contextParameter = factory.MethodGenericDictionary(Method);
}
else
{
Debug.Assert(canonMethod.RequiresInstMethodTableArg());
// Ask for a constructed type symbol because we need the vtable to get to the dictionary
contextParameter = factory.ConstructedTypeSymbol(Method.OwningType);
}
// The next entry is a pointer to the pointer to the context to be used for the canonical method
// TODO: in multi-module, this points to the import cell, and is no longer this weird pointer
builder.EmitPointerReloc(factory.Indirection(contextParameter));
return(builder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this }));
}
Debug.Assert(_dynamicInvokeMethodContainerType != null);
// Ensure the native layout blob has been saved
factory.MetadataManager.NativeLayoutInfo.SaveNativeLayoutInfoWriter(factory);
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.RequireInitialPointerAlignment();
objData.AddSymbol(this);
if (factory.Target.SupportsRelativePointers)
{
objData.EmitReloc(factory.NecessaryTypeSymbol(_dynamicInvokeMethodContainerType), RelocType.IMAGE_REL_BASED_RELPTR32);
}
else
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_dynamicInvokeMethodContainerType));
}
List <KeyValuePair <MethodDesc, int> > sortedList = new List <KeyValuePair <MethodDesc, int> >(_methodToTemplateIndex);
sortedList.Sort((firstEntry, secondEntry) => firstEntry.Value.CompareTo(secondEntry.Value));
for (int i = 0; i < sortedList.Count; i++)
{
var nameAndSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(sortedList[i].Key));
if (factory.Target.SupportsRelativePointers)
{
objData.EmitInt(nameAndSig.SavedVertex.VertexOffset);
objData.EmitReloc(factory.MethodEntrypoint(sortedList[i].Key), RelocType.IMAGE_REL_BASED_RELPTR32);
}
else
{
objData.EmitNaturalInt(nameAndSig.SavedVertex.VertexOffset);
objData.EmitPointerReloc(factory.MethodEntrypoint(sortedList[i].Key));
}
}
_endSymbol.SetSymbolOffset(objData.CountBytes);
objData.AddSymbol(_endSymbol);
// Prevent further adds now we're done writing
#if DEBUG
if (!relocsOnly)
{
_dataEmitted = true;
}
#endif
return(objData.ToObjectData());
}
protected virtual void OutputVirtualSlots(NodeFactory factory, ref ObjectDataBuilder objData, TypeDesc implType, TypeDesc declType, bool relocsOnly)
{
Debug.Assert(EmitVirtualSlotsAndInterfaces);
declType = declType.GetClosestDefType();
var baseType = declType.BaseType;
if (baseType != null)
{
OutputVirtualSlots(factory, ref objData, implType, baseType, relocsOnly);
}
// The generic dictionary pointer occupies the first slot of each type vtable slice
if (declType.HasGenericDictionarySlot())
{
// Note: Canonical type instantiations always have a generic dictionary vtable slot, but it's empty
// TODO: emit the correction dictionary slot for interfaces (needed when we start supporting static methods on interfaces)
if (declType.IsInterface || declType.IsCanonicalSubtype(CanonicalFormKind.Any))
{
objData.EmitZeroPointer();
}
else
{
objData.EmitPointerReloc(factory.TypeGenericDictionary(declType));
}
}
// It's only okay to touch the actual list of slots if we're in the final emission phase
// or the vtable is not built lazily.
if (relocsOnly && !factory.CompilationModuleGroup.ShouldProduceFullVTable(declType))
{
return;
}
// Actual vtable slots follow
IReadOnlyList <MethodDesc> virtualSlots = factory.VTable(declType).Slots;
for (int i = 0; i < virtualSlots.Count; i++)
{
MethodDesc declMethod = virtualSlots[i];
// No generic virtual methods can appear in the vtable!
Debug.Assert(!declMethod.HasInstantiation);
MethodDesc implMethod = implType.GetClosestDefType().FindVirtualFunctionTargetMethodOnObjectType(declMethod);
if (!implMethod.IsAbstract)
{
MethodDesc canonImplMethod = implMethod.GetCanonMethodTarget(CanonicalFormKind.Specific);
objData.EmitPointerReloc(factory.MethodEntrypoint(canonImplMethod, implMethod.OwningType.IsValueType));
}
else
{
objData.EmitZeroPointer();
}
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory, relocsOnly);
dataBuilder.RequireInitialPointerAlignment();
dataBuilder.AddSymbol(this);
EETypeRareFlags rareFlags = 0;
short flags = (short)EETypeKind.GenericTypeDefEEType;
if (_type.IsValueType)
{
flags |= (short)EETypeFlags.ValueTypeFlag;
}
if (_type.IsInterface)
{
flags |= (short)EETypeFlags.IsInterfaceFlag;
}
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
{
rareFlags = rareFlags | EETypeRareFlags.HasCctorFlag;
}
if (_type.IsByRefLike)
{
rareFlags |= EETypeRareFlags.IsByRefLikeFlag;
}
if (rareFlags != 0)
{
_optionalFieldsBuilder.SetFieldValue(EETypeOptionalFieldTag.RareFlags, (uint)rareFlags);
}
if (HasOptionalFields)
{
flags |= (short)EETypeFlags.OptionalFieldsFlag;
}
if (_type.IsEnum)
{
flags |= (short)EETypeBuilderHelpers.ComputeElementTypeFlags(_type);
}
dataBuilder.EmitShort((short)_type.Instantiation.Length);
dataBuilder.EmitShort(flags);
dataBuilder.EmitInt(0); // Base size is always 0
dataBuilder.EmitZeroPointer(); // No related type
dataBuilder.EmitShort(0); // No VTable
dataBuilder.EmitShort(0); // No interface map
dataBuilder.EmitInt(_type.GetHashCode());
dataBuilder.EmitPointerReloc(factory.TypeManagerIndirection);
if (HasOptionalFields)
{
dataBuilder.EmitPointerReloc(_optionalFieldsNode);
}
return(dataBuilder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
// The interface dispatch cell has an alignment requirement of 2 * [Pointer size] as part of the
// synchronization mechanism of the two values in the runtime.
objData.RequireInitialAlignment(_targetMethod.Context.Target.PointerSize * 2);
objData.AddSymbol(this);
if (factory.Target.Architecture == TargetArchitecture.ARM)
{
objData.EmitPointerReloc(factory.InitialInterfaceDispatchStub);
}
else
{
objData.EmitPointerReloc(factory.ExternSymbol("RhpInitialDynamicInterfaceDispatch"));
}
if (factory.Target.Abi == TargetAbi.CoreRT)
{
// TODO: Enable Indirect Pointer for Interface Dispatch Cell. See https://github.com/dotnet/corert/issues/2542
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_targetMethod.OwningType),
(int)InterfaceDispatchCellCachePointerFlags.CachePointerIsInterfacePointerOrMetadataToken);
}
else
{
if (factory.CompilationModuleGroup.ContainsType(_targetMethod.OwningType))
{
objData.EmitReloc(factory.NecessaryTypeSymbol(_targetMethod.OwningType), RelocType.IMAGE_REL_BASED_RELPTR32,
(int)InterfaceDispatchCellCachePointerFlags.CachePointerIsInterfaceRelativePointer);
}
else
{
objData.EmitReloc(factory.NecessaryTypeSymbol(_targetMethod.OwningType), RelocType.IMAGE_REL_BASED_RELPTR32,
(int)InterfaceDispatchCellCachePointerFlags.CachePointerIsIndirectedInterfaceRelativePointer);
}
if (objData.TargetPointerSize == 8)
{
// IMAGE_REL_BASED_RELPTR is a 32-bit relocation. However, the cell needs a full pointer
// width there since a pointer to the cache will be written into the cell. Emit additional
// 32 bits on targets whose pointer size is 64 bit.
objData.EmitInt(0);
}
}
// End the run of dispatch cells
objData.EmitZeroPointer();
// Avoid consulting VTable slots until they're guaranteed complete during final data emission
if (!relocsOnly)
{
objData.EmitNaturalInt(VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, _targetMethod));
}
return(objData.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.RequireInitialPointerAlignment();
objData.AddSymbol(this);
// Emit an aliased symbol named _tls_index for native P/Invoke code that uses TLS. This is required
// because we do not link against libcmt.lib.
ObjectAndOffsetSymbolNode aliasedSymbol = new ObjectAndOffsetSymbolNode(this, objData.CountBytes, "_tls_index", false);
objData.AddSymbol(aliasedSymbol);
// This is the TLS index field which is a 4-byte integer. Emit an 8-byte interger which includes a
// 4-byte padding to make an pointer-sized alignment for the subsequent fields for all targets.
objData.EmitLong(0);
// Allocate and initialize the IMAGE_TLS_DIRECTORY PE data structure used by the OS loader to determine
// TLS allocations. The structure is defined by the OS as following:
/*
* struct _IMAGE_TLS_DIRECTORY32
* {
* DWORD StartAddressOfRawData;
* DWORD EndAddressOfRawData;
* DWORD AddressOfIndex;
* DWORD AddressOfCallBacks;
* DWORD SizeOfZeroFill;
* DWORD Characteristics;
* }
*
* struct _IMAGE_TLS_DIRECTORY64
* {
* ULONGLONG StartAddressOfRawData;
* ULONGLONG EndAddressOfRawData;
* ULONGLONG AddressOfIndex;
* ULONGLONG AddressOfCallBacks;
* DWORD SizeOfZeroFill;
* DWORD Characteristics;
* }
*/
// In order to utilize linker support, the struct variable needs to be named _tls_used
ObjectAndOffsetSymbolNode structSymbol = new ObjectAndOffsetSymbolNode(this, objData.CountBytes, "_tls_used", false);
objData.AddSymbol(structSymbol);
objData.EmitPointerReloc(factory.ThreadStaticsRegion.StartSymbol); // start of tls data
objData.EmitPointerReloc(factory.ThreadStaticsRegion.EndSymbol); // end of tls data
objData.EmitPointerReloc(this); // address of tls_index
objData.EmitZeroPointer(); // pointer to call back array
objData.EmitInt(0); // size of tls zero fill
objData.EmitInt(0); // characteristics
return(objData.ToObjectData());
}
public override void EmitDictionaryEntry(ref ObjectDataBuilder builder, NodeFactory factory, Instantiation typeInstantiation, Instantiation methodInstantiation, GenericDictionaryNode dictionary)
{
ISymbolNode target = GetTarget(factory, typeInstantiation, methodInstantiation, dictionary);
if (target is IFatFunctionPointerNode)
{
builder.EmitPointerReloc(target, FatFunctionPointerConstants.Offset);
}
else
{
builder.EmitPointerReloc(target);
}
}
protected virtual void OutputVirtualSlots(NodeFactory factory, ref ObjectDataBuilder objData, TypeDesc implType, TypeDesc declType)
{
Debug.Assert(EmitVirtualSlotsAndInterfaces);
declType = declType.GetClosestDefType();
var baseType = declType.BaseType;
if (baseType != null)
{
OutputVirtualSlots(factory, ref objData, implType, baseType);
}
// The generic dictionary pointer occupies the first slot of each type vtable slice
if (declType.HasGenericDictionarySlot())
{
// Note: Canonical type instantiations always have a generic dictionary vtable slot, but it's empty
if (declType.IsCanonicalSubtype(CanonicalFormKind.Any))
{
objData.EmitZeroPointer();
}
else
{
objData.EmitPointerReloc(factory.TypeGenericDictionary(declType));
}
}
// Actual vtable slots follow
IReadOnlyList <MethodDesc> virtualSlots = factory.VTable(declType).Slots;
for (int i = 0; i < virtualSlots.Count; i++)
{
MethodDesc declMethod = virtualSlots[i];
// No generic virtual methods can appear in the vtable!
Debug.Assert(!declMethod.HasInstantiation);
MethodDesc implMethod = implType.GetClosestDefType().FindVirtualFunctionTargetMethodOnObjectType(declMethod);
if (!implMethod.IsAbstract)
{
MethodDesc canonImplMethod = implMethod.GetCanonMethodTarget(CanonicalFormKind.Specific);
objData.EmitPointerReloc(factory.MethodEntrypoint(canonImplMethod, implMethod.OwningType.IsValueType));
}
else
{
objData.EmitZeroPointer();
}
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
//
// Emit a MethodFixupCell struct
//
builder.EmitZeroPointer();
builder.EmitPointerReloc(factory.ConstantUtf8String(_entryPointName));
builder.EmitPointerReloc(factory.PInvokeModuleFixup(_moduleName));
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
if (factory.Target.Abi == TargetAbi.CoreRT || factory.Target.Abi == TargetAbi.CppCodegen)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
int delta = GCStaticRegionConstants.Uninitialized;
// Set the flag that indicates next pointer following EEType is the preinit data
if (_preInitFieldInfos != null)
{
delta |= GCStaticRegionConstants.HasPreInitializedData;
}
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory), delta);
if (_preInitFieldInfos != null)
{
builder.EmitPointerReloc(factory.GCStaticsPreInitDataNode(_type));
}
builder.AddSymbol(this);
return(builder.ToObjectData());
}
else
{
if (_preInitFieldInfos == null)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
builder.EmitZeros(_type.GCStaticFieldSize.AsInt);
builder.AddSymbol(this);
return(builder.ToObjectData());
}
else
{
_preInitFieldInfos.Sort(PreInitFieldInfo.FieldDescCompare);
return(GCStaticsPreInitDataNode.GetDataForPreInitDataField(this, _type, _preInitFieldInfos, 0, factory, relocsOnly));
}
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// This node does not trigger generation of other nodes.
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this }));
}
// Zero out the dictionary so that we AV if someone tries to insert after we're done.
_insertedSymbolsDictionary = null;
var builder = new ObjectDataBuilder(factory, relocsOnly);
foreach (SymbolAndDelta symbolAndDelta in _insertedSymbols)
{
if (factory.Target.SupportsRelativePointers)
{
// TODO: set low bit if the linkage of the symbol is IAT_PVALUE.
builder.EmitReloc(symbolAndDelta.Symbol, RelocType.IMAGE_REL_BASED_RELPTR32, symbolAndDelta.Delta);
}
else
{
builder.EmitPointerReloc(symbolAndDelta.Symbol, symbolAndDelta.Delta);
}
}
_endSymbol.SetSymbolOffset(builder.CountBytes);
builder.AddSymbol(this);
builder.AddSymbol(_endSymbol);
return(builder.ToObjectData());
}
protected virtual void OutputRelatedType(NodeFactory factory, ref ObjectDataBuilder objData)
{
ISymbolNode relatedTypeNode = null;
if (_type.IsArray || _type.IsPointer || _type.IsByRef)
{
var parameterType = ((ParameterizedType)_type).ParameterType;
relatedTypeNode = factory.NecessaryTypeSymbol(parameterType);
}
else
{
TypeDesc baseType = _type.BaseType;
if (baseType != null)
{
relatedTypeNode = GetBaseTypeNode(factory);
}
}
if (relatedTypeNode != null)
{
objData.EmitPointerReloc(relatedTypeNode);
}
else
{
objData.EmitZeroPointer();
}
}
protected override void OutputRelatedType(NodeFactory factory, ref ObjectDataBuilder objData)
{
//
// Cloned types use the related type field to point via an IAT slot at their true implementation
//
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type));
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory);
dataBuilder.Alignment = 16;
dataBuilder.DefinedSymbols.Add(this);
short flags = (short)EETypeKind.GenericTypeDefEEType;
if (_type.IsValueType)
{
flags |= (short)EETypeFlags.ValueTypeFlag;
}
if (_type.IsInterface)
{
flags |= (short)EETypeFlags.IsInterfaceFlag;
}
dataBuilder.EmitShort((short)_type.Instantiation.Length);
dataBuilder.EmitShort(flags);
dataBuilder.EmitInt(0); // Base size is always 0
dataBuilder.EmitZeroPointer(); // No related type
dataBuilder.EmitShort(0); // No VTable
dataBuilder.EmitShort(0); // No interface map
dataBuilder.EmitInt(_type.GetHashCode());
dataBuilder.EmitPointerReloc(factory.ModuleManagerIndirection);
return(dataBuilder.ToObjectData());
}
protected override void OutputRelatedType(NodeFactory factory, ref ObjectDataBuilder objData)
{
//
// Cloned types use the related type field to point via an IAT slot at their true implementation
//
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type));
}
protected override void OutputInterfaceMap(NodeFactory factory, ref ObjectDataBuilder objData)
{
foreach (var itf in _type.RuntimeInterfaces)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(itf));
}
}
private void OutputOptionalFields(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (HasOptionalFields)
{
objData.EmitPointerReloc(_optionalFieldsNode);
}
}
private void OutputVirtualSlots(NodeFactory factory, ref ObjectDataBuilder objData, TypeDesc implType, TypeDesc declType)
{
var baseType = declType.BaseType;
if (baseType != null)
{
OutputVirtualSlots(factory, ref objData, implType, baseType);
}
List <MethodDesc> virtualSlots;
factory.VirtualSlots.TryGetValue(declType, out virtualSlots);
if (virtualSlots != null)
{
for (int i = 0; i < virtualSlots.Count; i++)
{
MethodDesc declMethod = virtualSlots[i];
MethodDesc implMethod = VirtualFunctionResolution.FindVirtualFunctionTargetMethodOnObjectType(declMethod, implType.GetClosestMetadataType());
if (!implMethod.IsAbstract)
{
objData.EmitPointerReloc(factory.MethodEntrypoint(implMethod));
}
else
{
objData.EmitZeroPointer();
}
}
}
}
private void OutputOptionalFields(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (_optionalFieldsBuilder.IsAtLeastOneFieldUsed())
{
objData.EmitPointerReloc(_optionalFieldsNode);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.RequireInitialAlignment(4);
objData.AddSymbol(this);
if (BuildSealedVTableSlots(factory, relocsOnly))
{
for (int i = 0; i < _sealedVTableEntries.Count; i++)
{
MethodDesc canonImplMethod = _sealedVTableEntries[i].GetCanonMethodTarget(CanonicalFormKind.Specific);
IMethodNode relocTarget = factory.MethodEntrypoint(canonImplMethod, _sealedVTableEntries[i].OwningType.IsValueType);
if (factory.Target.SupportsRelativePointers)
{
objData.EmitReloc(relocTarget, RelocType.IMAGE_REL_BASED_RELPTR32);
}
else
{
objData.EmitPointerReloc(relocTarget);
}
}
}
return(objData.ToObjectData());
}
private void OutputNullableTypeParameter(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (_type.IsNullable)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type.Instantiation[0]));
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
// If the type has a class constructor, its non-GC statics section is prefixed
// by System.Runtime.CompilerServices.StaticClassConstructionContext struct.
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
{
int alignmentRequired = Math.Max(_type.NonGCStaticFieldAlignment, GetClassConstructorContextAlignment(_type.Context.Target));
int classConstructorContextStorageSize = GetClassConstructorContextStorageSize(factory.Target, _type);
builder.RequireAlignment(alignmentRequired);
Debug.Assert(classConstructorContextStorageSize >= GetClassConstructorContextSize(_type.Context.Target));
// Add padding before the context if alignment forces us to do so
builder.EmitZeros(classConstructorContextStorageSize - GetClassConstructorContextSize(_type.Context.Target));
// Emit the actual StaticClassConstructionContext
var cctorMethod = _type.GetStaticConstructor();
builder.EmitPointerReloc(factory.MethodEntrypoint(cctorMethod));
builder.EmitZeroPointer();
}
else
{
builder.RequireAlignment(_type.NonGCStaticFieldAlignment);
}
builder.EmitZeros(_type.NonGCStaticFieldSize);
builder.DefinedSymbols.Add(this);
return(builder.ToObjectData());
}
private void OutputRelatedType(NodeFactory factory, ref ObjectDataBuilder objData)
{
ISymbolNode relatedTypeNode = null;
if (_type.IsArray || _type.IsPointer)
{
var parameterType = ((ParameterizedType)_type).ParameterType;
relatedTypeNode = factory.NecessaryTypeSymbol(parameterType);
}
else
{
TypeDesc baseType = _type.BaseType;
if (baseType != null)
{
if (_constructed)
{
relatedTypeNode = factory.ConstructedTypeSymbol(baseType);
}
else
{
relatedTypeNode = factory.NecessaryTypeSymbol(baseType);
}
}
}
if (relatedTypeNode != null)
{
objData.EmitPointerReloc(relatedTypeNode);
}
else
{
objData.EmitZeroPointer();
}
}
public override void EncodeData(ref ObjectDataBuilder builder, NodeFactory factory, bool relocsOnly)
{
// At runtime, an instance of the GCStaticEEType will be created and a GCHandle to it
// will be written in this location.
builder.RequireInitialPointerAlignment();
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory));
}
public override void EncodeData(ref ObjectDataBuilder builder, NodeFactory factory, bool relocsOnly)
{
builder.RequirePointerAlignment();
// At runtime, an instance of the GCStaticEEType will be created and a GCHandle to it
// will be written in this location.
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory));
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.RequirePointerAlignment();
objData.DefinedSymbols.Add(this);
objData.EmitPointerReloc(factory.ReadyToRunHeader);
return objData.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
var builder = new ObjectDataBuilder(factory);
builder.RequirePointerAlignment();
builder.DefinedSymbols.Add(this);
builder.EmitPointerReloc(_indirectedNode);
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.RequirePointerAlignment();
builder.EmitPointerReloc(GetGCStaticEETypeNode(factory), 1);
builder.DefinedSymbols.Add(this);
return builder.ToObjectData();
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
dataBuilder.RequirePointerAlignment();
StringDataNode stringDataNode = factory.StringData(_data);
if (!relocsOnly)
stringDataNode.SetId(base.Offset);
dataBuilder.EmitPointerReloc(stringDataNode);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
//
// Emit a MethodFixupCell struct
//
builder.EmitZeroPointer();
int entryPointBytesCount = Encoding.UTF8.GetByteCount(_entryPointName);
byte[] entryPointNameBytes = new byte[entryPointBytesCount + 1];
Encoding.UTF8.GetBytes(_entryPointName, 0, _entryPointName.Length, entryPointNameBytes, 0);
builder.EmitPointerReloc(factory.ReadOnlyDataBlob("__pinvokename_" + _entryPointName, entryPointNameBytes, 1));
builder.EmitPointerReloc(factory.PInvokeModuleFixup(_moduleName));
return builder.ToObjectData();
}
protected virtual void EmitDataInternal(ref ObjectDataBuilder builder, NodeFactory factory)
{
DictionaryLayoutNode layout = GetDictionaryLayout(factory);
Instantiation typeInst = this.TypeInstantiation;
Instantiation methodInst = this.MethodInstantiation;
foreach (var entry in layout.Entries)
{
ISymbolNode targetNode = entry.GetTarget(factory, typeInst, methodInst);
builder.EmitPointerReloc(targetNode);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = factory.Target.PointerSize;
objData.DefinedSymbols.Add(this);
foreach (var map in _dispatchMaps)
{
objData.EmitPointerReloc(map);
}
return objData.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory);
dataBuilder.Alignment = dataBuilder.TargetPointerSize;
dataBuilder.DefinedSymbols.Add(this);
EETypeRareFlags rareFlags = 0;
short flags = (short)EETypeKind.GenericTypeDefEEType;
if (_type.IsValueType)
flags |= (short)EETypeFlags.ValueTypeFlag;
if (_type.IsInterface)
flags |= (short)EETypeFlags.IsInterfaceFlag;
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
rareFlags = rareFlags | EETypeRareFlags.HasCctorFlag;
if (rareFlags != 0)
_optionalFieldsBuilder.SetFieldValue(EETypeOptionalFieldTag.RareFlags, (uint)rareFlags);
if (_optionalFieldsBuilder.IsAtLeastOneFieldUsed())
flags |= (short)EETypeFlags.OptionalFieldsFlag;
dataBuilder.EmitShort((short)_type.Instantiation.Length);
dataBuilder.EmitShort(flags);
dataBuilder.EmitInt(0); // Base size is always 0
dataBuilder.EmitZeroPointer(); // No related type
dataBuilder.EmitShort(0); // No VTable
dataBuilder.EmitShort(0); // No interface map
dataBuilder.EmitInt(_type.GetHashCode());
dataBuilder.EmitPointerReloc(factory.ModuleManagerIndirection);
if (_optionalFieldsBuilder.IsAtLeastOneFieldUsed())
{
dataBuilder.EmitPointerReloc(factory.EETypeOptionalFields(_optionalFieldsBuilder));
}
return dataBuilder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
ISymbolNode nameSymbol = factory.Target.IsWindows ?
factory.ConstantUtf16String(_moduleName) :
factory.ConstantUtf8String(_moduleName);
//
// Emit a ModuleFixupCell struct
//
builder.EmitZeroPointer();
builder.EmitPointerReloc(nameSymbol);
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
//
// Emit a ModuleFixupCell struct
//
builder.EmitZeroPointer();
Encoding encoding = factory.Target.IsWindows ? Encoding.Unicode : Encoding.UTF8;
int moduleNameBytesCount = encoding.GetByteCount(_moduleName);
byte[] moduleNameBytes = new byte[moduleNameBytesCount + 2];
encoding.GetBytes(_moduleName, 0, _moduleName.Length, moduleNameBytes, 0);
builder.EmitPointerReloc(factory.ReadOnlyDataBlob("__modulename_" + _moduleName, moduleNameBytes, 2));
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory);
dataBuilder.Alignment = 16;
dataBuilder.DefinedSymbols.Add(this);
short flags = (short)EETypeKind.GenericTypeDefEEType;
if (_type.IsValueType)
flags |= (short)EETypeFlags.ValueTypeFlag;
if (_type.IsInterface)
flags |= (short)EETypeFlags.IsInterfaceFlag;
dataBuilder.EmitShort((short)_type.Instantiation.Length);
dataBuilder.EmitShort(flags);
dataBuilder.EmitInt(0); // Base size is always 0
dataBuilder.EmitZeroPointer(); // No related type
dataBuilder.EmitShort(0); // No VTable
dataBuilder.EmitShort(0); // No interface map
dataBuilder.EmitInt(_type.GetHashCode());
dataBuilder.EmitPointerReloc(factory.ModuleManagerIndirection);
return dataBuilder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = objData.TargetPointerSize;
objData.DefinedSymbols.Add(this);
ComputeOptionalEETypeFields(factory);
OutputGCDesc(ref objData);
OutputComponentSize(ref objData);
OutputFlags(factory, ref objData);
OutputBaseSize(ref objData);
OutputRelatedType(factory, ref objData);
// Avoid consulting VTable slots until they're guaranteed complete during final data emission
if (!relocsOnly)
{
OutputVirtualSlotAndInterfaceCount(factory, ref objData);
}
objData.EmitInt(_type.GetHashCode());
objData.EmitPointerReloc(factory.TypeManagerIndirection);
// Avoid consulting VTable slots until they're guaranteed complete during final data emission
if (!relocsOnly)
{
OutputVirtualSlots(factory, ref objData, _type, _type);
}
OutputInterfaceMap(factory, ref objData);
OutputFinalizerMethod(factory, ref objData);
OutputOptionalFields(factory, ref objData);
OutputNullableTypeParameter(factory, ref objData);
OutputGenericInstantiationDetails(factory, ref objData);
return objData.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory);
dataBuilder.Alignment = 16;
dataBuilder.DefinedSymbols.Add(this);
// +2 for SyncBlock and EETypePtr field
int totalSize = (_gcMap.Size + 2) * _target.PointerSize;
// We only need to check for containsPointers because ThreadStatics are always allocated
// on the GC heap (no matter what "HasGCStaticBase" says).
// If that ever changes, we can assume "true" and switch this to an assert.
bool containsPointers = _gcMap.NumSeries > 0;
if (containsPointers)
{
GCDescEncoder.EncodeStandardGCDesc(ref dataBuilder, _gcMap, totalSize, 0);
}
Debug.Assert(dataBuilder.CountBytes == Offset);
dataBuilder.EmitShort(0); // ComponentSize is always 0
short flags = 0;
if (containsPointers)
flags |= (short)EETypeFlags.HasPointersFlag;
dataBuilder.EmitShort(flags);
totalSize = Math.Max(totalSize, _target.PointerSize * 3); // minimum GC eetype size is 3 pointers
dataBuilder.EmitInt(totalSize);
// Related type: System.Object. This allows storing an instance of this type in an array of objects.
dataBuilder.EmitPointerReloc(factory.NecessaryTypeSymbol(factory.TypeSystemContext.GetWellKnownType(WellKnownType.Object)));
return dataBuilder.ToObjectData();
}
private void OutputFinalizerMethod(NodeFactory factory, ref ObjectDataBuilder objData)
{
MethodDesc finalizerMethod = _type.GetFinalizer();
if (finalizerMethod != null)
{
objData.EmitPointerReloc(factory.MethodEntrypoint(finalizerMethod));
}
}
private void OutputOptionalFields(NodeFactory factory, ref ObjectDataBuilder objData)
{
if(_optionalFieldsBuilder.IsAtLeastOneFieldUsed())
{
objData.EmitPointerReloc(factory.EETypeOptionalFields(_optionalFieldsBuilder));
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// This node does not trigger generation of other nodes.
if (relocsOnly)
return new ObjectData(Array.Empty<byte>(), Array.Empty<Relocation>(), 1, new ISymbolNode[] { this });
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
foreach (var mappingEntry in factory.MetadataManager.GetTypeDefinitionMapping())
{
if (!factory.CompilationModuleGroup.ContainsType(mappingEntry.Entity))
continue;
// We are looking for any EEType - constructed or not, it has to be in the mapping
// table so that we can map it to metadata.
EETypeNode node = null;
if (!mappingEntry.Entity.IsGenericDefinition)
{
node = factory.ConstructedTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node == null || !node.Marked)
{
// This might have been a typeof() expression.
node = factory.NecessaryTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node.Marked)
{
// TODO: this format got very inefficient due to not being able to use RVAs
// replace with a hash table
builder.EmitPointerReloc(node);
builder.EmitInt(mappingEntry.MetadataHandle);
if (factory.Target.PointerSize == 8)
builder.EmitInt(0); // Pad
}
}
_endSymbol.SetSymbolOffset(builder.CountBytes);
builder.DefinedSymbols.Add(this);
builder.DefinedSymbols.Add(_endSymbol);
return builder.ToObjectData();
}
protected override void OutputInterfaceMap(NodeFactory factory, ref ObjectDataBuilder objData)
{
foreach (var itf in _type.RuntimeInterfaces)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(itf));
}
}
protected override void OutputVirtualSlots(NodeFactory factory, ref ObjectDataBuilder objData, TypeDesc implType, TypeDesc declType)
{
declType = declType.GetClosestDefType();
var baseType = declType.BaseType;
if (baseType != null)
OutputVirtualSlots(factory, ref objData, implType, baseType);
// The generic dictionary pointer occupies the first slot of each type vtable slice
if (declType.HasGenericDictionarySlot())
{
objData.EmitPointerReloc(factory.TypeGenericDictionary(declType));
}
// Actual vtable slots follow
IReadOnlyList<MethodDesc> virtualSlots = factory.VTable(declType).Slots;
for (int i = 0; i < virtualSlots.Count; i++)
{
MethodDesc declMethod = virtualSlots[i];
MethodDesc implMethod = implType.GetClosestDefType().FindVirtualFunctionTargetMethodOnObjectType(declMethod);
if (declMethod.HasInstantiation)
{
// Generic virtual methods will "compile", but will fail to link. Check for it here.
throw new NotImplementedException("VTable for " + _type + " has generic virtual methods.");
}
if (!implMethod.IsAbstract)
{
MethodDesc canonImplMethod = implMethod.GetCanonMethodTarget(CanonicalFormKind.Specific);
objData.EmitPointerReloc(factory.MethodEntrypoint(canonImplMethod, implMethod.OwningType.IsValueType));
}
else
{
objData.EmitZeroPointer();
}
}
}
protected virtual void OutputRelatedType(NodeFactory factory, ref ObjectDataBuilder objData)
{
ISymbolNode relatedTypeNode = null;
if (_type.IsArray || _type.IsPointer || _type.IsByRef)
{
var parameterType = ((ParameterizedType)_type).ParameterType;
relatedTypeNode = factory.NecessaryTypeSymbol(parameterType);
}
else
{
TypeDesc baseType = _type.BaseType;
if (baseType != null)
{
relatedTypeNode = GetBaseTypeNode(factory);
}
}
if (relatedTypeNode != null)
{
objData.EmitPointerReloc(relatedTypeNode);
}
else
{
objData.EmitZeroPointer();
}
}
private void OutputFinalizerMethod(NodeFactory factory, ref ObjectDataBuilder objData)
{
MethodDesc finalizerMethod = _type.GetFinalizer();
if (finalizerMethod != null)
{
MethodDesc canonFinalizerMethod = finalizerMethod.GetCanonMethodTarget(CanonicalFormKind.Specific);
objData.EmitPointerReloc(factory.MethodEntrypoint(canonFinalizerMethod));
}
}
private void OutputOptionalFields(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (HasOptionalFields)
{
objData.EmitPointerReloc(_optionalFieldsNode);
}
}
private void OutputNullableTypeParameter(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (_type.IsNullable)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type.Instantiation[0]));
}
}
private void OutputGenericInstantiationDetails(NodeFactory factory, ref ObjectDataBuilder objData)
{
if (_type.HasInstantiation && !_type.IsTypeDefinition)
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(_type.GetTypeDefinition()));
GenericCompositionDetails details;
if (_type.GetTypeDefinition() == factory.ArrayOfTEnumeratorType)
{
// Generic array enumerators use special variance rules recognized by the runtime
details = new GenericCompositionDetails(_type.Instantiation, new[] { GenericVariance.ArrayCovariant });
}
else
details = new GenericCompositionDetails(_type);
objData.EmitPointerReloc(factory.GenericComposition(details));
}
}
