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)
{
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 = 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)
{
bool hasVariance = false;
foreach (var argVariance in _details.Variance)
{
if (argVariance != 0)
{
hasVariance = true;
break;
}
}
var builder = new ObjectDataBuilder(factory);
builder.DefinedSymbols.Add(this);
builder.RequirePointerAlignment();
builder.EmitShort((short)checked ((UInt16)_details.Instantiation.Length));
builder.EmitByte((byte)(hasVariance ? 1 : 0));
// TODO: general purpose padding
builder.EmitByte(0);
if (factory.Target.PointerSize == 8)
{
builder.EmitInt(0);
}
foreach (var typeArg in _details.Instantiation)
{
builder.EmitPointerReloc(factory.NecessaryTypeSymbol(typeArg));
}
if (hasVariance)
{
foreach (var argVariance in _details.Variance)
{
builder.EmitByte(checked ((byte)argVariance));
}
}
return(builder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
builder.AddSymbol(this);
//
// Emit a MethodFixupCell struct
//
// Address (to be fixed up at runtime)
builder.EmitZeroPointer();
// Entry point name
string entryPointName = _pInvokeMethodData.EntryPointName;
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(_pInvokeMethodData.ModuleData));
builder.EmitInt((int)_pInvokeMethodData.CharSetMangling);
return(builder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory, relocsOnly);
dataBuilder.RequireInitialPointerAlignment();
dataBuilder.AddSymbol(this);
// +1 for SyncBlock (static size already includes MethodTable)
Debug.Assert(factory.Target.Abi == TargetAbi.NativeAot || factory.Target.Abi == TargetAbi.CppCodegen);
int totalSize = (_gcMap.Size + 1) * _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 == ((ISymbolDefinitionNode)this).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 MethodTable 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());
}
public override void EncodeData(ref ObjectDataBuilder builder, NodeFactory factory, bool relocsOnly)
{
int gcFieldCount = 0;
int startIndex = 0;
int numSeries = 0;
for (int i = 0; i < _gcMap.Size; i++)
{
// Skip non-GC fields
if (!_gcMap[i])
{
continue;
}
gcFieldCount++;
if (i == 0 || !_gcMap[i - 1])
{
// The cell starts a new series
startIndex = i;
}
if (i == _gcMap.Size - 1 || !_gcMap[i + 1])
{
// The cell ends the current series
builder.EmitInt(gcFieldCount);
if (_isThreadStatic)
{
builder.EmitReloc((factory as UtcNodeFactory).TlsStart, RelocType.IMAGE_REL_SECREL, startIndex * factory.Target.PointerSize);
}
else
{
builder.EmitReloc(factory.TypeGCStaticsSymbol(_type), RelocType.IMAGE_REL_BASED_RELPTR32, startIndex * factory.Target.PointerSize);
}
gcFieldCount = 0;
numSeries++;
}
}
Debug.Assert(numSeries == NumSeries);
}
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);
// This is just so that EEType::Validate doesn't blow up at runtime
dataBuilder.EmitPointerReloc(this); // Related type: itself
return(dataBuilder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// TODO: define _tls_index as "comdat select any" when multiple object files present.
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
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.
objData.EmitInt(0);
return(objData.ToObjectData());
}
protected override void GetElementDataForNodes(ref ObjectDataBuilder builder, NodeFactory factory, bool relocsOnly)
{
int numSeries = 0;
foreach (GCStaticDescNode descNode in NodesList)
{
numSeries += descNode.NumSeries;
}
builder.EmitInt(numSeries);
foreach (GCStaticDescNode node in NodesList)
{
if (!relocsOnly)
{
node.Offset = builder.CountBytes;
}
node.EncodeData(ref builder, factory, relocsOnly);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
if (!relocsOnly)
{
var entries = BuildDispatchMap(factory);
objData.EmitInt(entries.Length);
foreach (var entry in entries)
{
objData.EmitShort(entry.InterfaceIndex);
objData.EmitShort(entry.InterfaceMethodSlot);
objData.EmitShort(entry.ImplementationMethodSlot);
}
}
return(objData.ToObjectData());
}
protected override void GetElementDataForNodes(ref ObjectDataBuilder builder, NodeFactory factory, bool relocsOnly)
{
int numSeries = 0;
foreach (GCStaticDescNode descNode in NodesList)
{
numSeries += descNode.NumSeries;
}
builder.EmitInt(numSeries);
foreach (GCStaticDescNode node in NodesList)
{
if (!relocsOnly)
{
node.InitializeOffsetFromBeginningOfArray(builder.CountBytes);
}
node.EncodeData(ref builder, factory, relocsOnly);
builder.AddSymbol(node);
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
// Todo: Generic Type Definition EETypes
// Early-out just to prevent crashing at compile time...
if (_type.HasInstantiation && _type.IsTypeDefinition)
{
objData.EmitZeroPointer();
return(objData.ToObjectData());
}
ComputeOptionalEETypeFields(factory);
if (null == _optionalFieldsNode)
{
_optionalFieldsNode = factory.EETypeOptionalFields(_optionalFieldsBuilder);
}
OutputComponentSize(ref objData);
OutputFlags(factory, ref objData);
OutputBaseSize(ref objData);
OutputRelatedType(factory, ref objData);
OutputVirtualSlotAndInterfaceCount(factory, ref objData);
objData.EmitInt(_type.GetHashCode());
if (_constructed)
{
OutputVirtualSlots(factory, ref objData, _type, _type);
OutputFinalizerMethod(factory, ref objData);
OutputOptionalFields(factory, ref objData);
OutputNullableTypeParameter(factory, ref objData);
}
return(objData.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 = false)
{
Debug.Assert((EETypeNode.GetVTableOffset(factory.Target.PointerSize) % factory.Target.PointerSize) == 0, "vtable offset must be aligned");
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.AddSymbol(this);
if (!relocsOnly)
{
int tableOffset;
if (_targetMethod.OwningType.IsInterface)
{
tableOffset = 0;
}
else
{
tableOffset = EETypeNode.GetVTableOffset(factory.Target.PointerSize) / factory.Target.PointerSize;
}
objData.EmitInt(tableOffset + VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, _targetMethod, _targetMethod.OwningType));
}
return(objData.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// The dependency tracking of this node currently does nothing because the data emission relies
// the set of compiled methods which has an incomplete state during dependency tracking.
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this }));
}
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.RequireInitialPointerAlignment();
objData.AddSymbol(this);
objData.AddSymbol(_endSymbol);
foreach (var mappingEntry in factory.MetadataManager.GetStackTraceMapping(factory))
{
objData.EmitReloc(factory.MethodEntrypoint(mappingEntry.Entity), RelocType.IMAGE_REL_BASED_RELPTR32);
objData.EmitInt(mappingEntry.MetadataHandle);
}
_endSymbol.SetSymbolOffset(objData.CountBytes);
return(objData.ToObjectData());
}
private void OutputBaseSize(ref ObjectDataBuilder objData)
{
int pointerSize = _type.Context.Target.PointerSize;
int minimumObjectSize = pointerSize * 3;
int objectSize;
if (_type.IsDefType)
{
objectSize = pointerSize +
((DefType)_type).InstanceByteCount; // +pointerSize for SyncBlock
if (_type.IsValueType)
objectSize += pointerSize; // + EETypePtr field inherited from System.Object
}
else if (_type.IsArray)
{
objectSize = 3 * pointerSize; // SyncBlock + EETypePtr + Length
if (_type.IsMdArray)
objectSize +=
2 * _type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() * ((ArrayType)_type).Rank;
}
else if (_type.IsPointer)
{
// These never get boxed and don't have a base size. Use a sentinel value recognized by the runtime.
objData.EmitInt(ParameterizedTypeShapeConstants.Pointer);
return;
}
else if (_type.IsByRef)
{
// These never get boxed and don't have a base size. Use a sentinel value recognized by the runtime.
objData.EmitInt(ParameterizedTypeShapeConstants.ByRef);
return;
}
else
throw new NotImplementedException();
objectSize = AlignmentHelper.AlignUp(objectSize, pointerSize);
objectSize = Math.Max(minimumObjectSize, objectSize);
if (_type.IsString)
{
// If this is a string, throw away objectSize we computed so far. Strings are special.
// SyncBlock + EETypePtr + length + firstChar
objectSize = 2 * pointerSize +
_type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() +
_type.Context.GetWellKnownType(WellKnownType.Char).GetElementSize();
}
objData.EmitInt(objectSize);
}
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 = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.Alignment = factory.Target.PointerSize;
builder.DefinedSymbols.Add(this);
// Don't bother sorting if we're not emitting the contents
if (!relocsOnly)
_items.Sort((x, y) => Comparer<int>.Default.Compare((int)x.Id, (int)y.Id));
// ReadyToRunHeader.Magic
builder.EmitInt((int)(ReadyToRunHeaderConstants.Signature));
// ReadyToRunHeader.MajorVersion
builder.EmitShort((short)(ReadyToRunHeaderConstants.CurrentMajorVersion));
builder.EmitShort((short)(ReadyToRunHeaderConstants.CurrentMinorVersion));
// ReadyToRunHeader.Flags
builder.EmitInt(0);
// ReadyToRunHeader.NumberOfSections
var sectionCountReservation = builder.ReserveShort();
// ReadyToRunHeader.EntrySize
builder.EmitByte((byte)(8 + 2 * factory.Target.PointerSize));
// ReadyToRunHeader.EntryType
builder.EmitByte(1);
int count = 0;
foreach (var item in _items)
{
// Skip empty entries
if (item.Node.ShouldSkipEmittingObjectNode(factory))
continue;
builder.EmitInt((int)item.Id);
ModuleInfoFlags flags = 0;
if (item.EndSymbol != null)
{
flags |= ModuleInfoFlags.HasEndPointer;
}
builder.EmitInt((int)flags);
builder.EmitPointerReloc(item.StartSymbol);
if (item.EndSymbol != null)
{
builder.EmitPointerReloc(item.EndSymbol);
}
else
{
builder.EmitZeroPointer();
}
count++;
}
builder.EmitShort(sectionCountReservation, checked((short)count));
return builder.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
if (!relocsOnly)
{
var entries = BuildDispatchMap(factory);
objData.EmitInt(entries.Length);
foreach (var entry in entries)
{
objData.EmitShort(entry.InterfaceIndex);
objData.EmitShort(entry.InterfaceMethodSlot);
objData.EmitShort(entry.ImplementationMethodSlot);
}
}
return objData.ToObjectData();
}
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();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder dataBuilder = new ObjectDataBuilder(factory);
dataBuilder.Alignment = 16;
dataBuilder.DefinedSymbols.Add(this);
bool hasPointers = NumSeries > 0;
if (hasPointers)
{
for (int i = ((_runLengths.Length / 2) * 2) - 1; i >= 0; i--)
{
if (_targetPointerSize == 4)
{
dataBuilder.EmitInt(_runLengths[i]);
}
else
{
dataBuilder.EmitLong(_runLengths[i]);
}
}
if (_targetPointerSize == 4)
{
dataBuilder.EmitInt(NumSeries);
}
else
{
dataBuilder.EmitLong(NumSeries);
}
}
int totalSize = 0;
foreach (int run in _runLengths)
{
totalSize += run * _targetPointerSize;
}
dataBuilder.EmitShort(0); // ComponentSize is always 0
if (hasPointers)
dataBuilder.EmitShort(0x20); // TypeFlags.HasPointers
else
dataBuilder.EmitShort(0x00);
totalSize = Math.Max(totalSize, _targetPointerSize * 3); // minimum GC eetype size is 3 pointers
dataBuilder.EmitInt(totalSize);
return dataBuilder.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();
}
protected override void EmitDataInternal(ref ObjectDataBuilder builder, NodeFactory factory)
{
// Method generic dictionaries get prefixed by the hash code of the owning method
// to allow quick lookups of additional details by the type loader.
if (builder.TargetPointerSize == 8)
builder.EmitInt(0);
builder.EmitInt(_owningMethod.GetHashCode());
Debug.Assert(builder.CountBytes == Offset);
base.EmitDataInternal(ref builder, factory);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.Alignment = factory.Target.PointerSize;
builder.DefinedSymbols.Add(this);
// Don't bother sorting if we're not emitting the contents
if (!relocsOnly)
{
_items.Sort((x, y) => Comparer <int> .Default.Compare((int)x.Id, (int)y.Id));
}
// ReadyToRunHeader.Magic
builder.EmitInt((int)(ReadyToRunHeaderConstants.Signature));
// ReadyToRunHeader.MajorVersion
builder.EmitShort((short)(ReadyToRunHeaderConstants.CurrentMajorVersion));
builder.EmitShort((short)(ReadyToRunHeaderConstants.CurrentMinorVersion));
// ReadyToRunHeader.Flags
builder.EmitInt(0);
// ReadyToRunHeader.NumberOfSections
var sectionCountReservation = builder.ReserveShort();
// ReadyToRunHeader.EntrySize
builder.EmitByte((byte)(8 + 2 * factory.Target.PointerSize));
// ReadyToRunHeader.EntryType
builder.EmitByte(1);
int count = 0;
foreach (var item in _items)
{
// Skip empty entries
if (item.Node.ShouldSkipEmittingObjectNode(factory))
{
continue;
}
builder.EmitInt((int)item.Id);
ModuleInfoFlags flags = 0;
if (item.EndSymbol != null)
{
flags |= ModuleInfoFlags.HasEndPointer;
}
builder.EmitInt((int)flags);
builder.EmitPointerReloc(item.StartSymbol);
if (item.EndSymbol != null)
{
builder.EmitPointerReloc(item.EndSymbol);
}
else
{
builder.EmitZeroPointer();
}
count++;
}
builder.EmitShort(sectionCountReservation, checked ((short)count));
return(builder.ToObjectData());
}
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 }));
}
ObjectDataBuilder objDataBuilder = new ObjectDataBuilder(factory, relocsOnly);
// Emit number of dictionaries in table
objDataBuilder.AddSymbol(this);
IReadOnlyCollection <GenericDictionaryNode> dictionariesEmitted = factory.MetadataManager.GetCompiledGenericDictionaries();
objDataBuilder.EmitInt(dictionariesEmitted.Count);
DebugInfoBlob signatureData = new DebugInfoBlob();
BlobBuilder signatureBlobBuilder = new BlobBuilder();
BlobBuilder signatureLenBuilder = new BlobBuilder();
ManagedBinaryEmitter pseudoAssembly = factory.WindowsDebugData.DebugPseudoAssemblySection.PseudoAssembly;
foreach (GenericDictionaryNode dictionary in dictionariesEmitted)
{
objDataBuilder.EmitReloc(dictionary, RelocType.IMAGE_REL_BASED_ADDR32NB);
objDataBuilder.EmitUInt(signatureData.Size());
signatureBlobBuilder.Clear();
int typeDictLen = dictionary.TypeInstantiation.IsNull ? 0 : dictionary.TypeInstantiation.Length;
int methodDictLen = dictionary.MethodInstantiation.IsNull ? 0 : dictionary.MethodInstantiation.Length;
signatureBlobBuilder.WriteCompressedInteger(typeDictLen + methodDictLen);
if (typeDictLen != 0)
{
foreach (TypeDesc type in dictionary.TypeInstantiation)
{
pseudoAssembly.EncodeSignatureForType(type, signatureBlobBuilder);
}
}
if (methodDictLen != 0)
{
foreach (TypeDesc type in dictionary.MethodInstantiation)
{
pseudoAssembly.EncodeSignatureForType(type, signatureBlobBuilder);
}
}
int blobSize = signatureBlobBuilder.Count;
signatureLenBuilder.Clear();
signatureLenBuilder.WriteCompressedInteger(blobSize);
// Prepend the signature data with a length
signatureData.WriteBuffer(signatureLenBuilder);
// And then attach the actual signature data
signatureData.WriteBuffer(signatureBlobBuilder);
}
// Attach signature information to end after all of the rva/offset pairs
objDataBuilder.EmitBytes(signatureData.ToArray());
return(objDataBuilder.ToObjectData());
}
protected override void OutputBaseSize(ref ObjectDataBuilder objData)
{
// Canonical definition types will have their base size set to the minimum
objData.EmitInt(MinimumObjectSize);
}
protected virtual void OutputBaseSize(ref ObjectDataBuilder objData)
{
int pointerSize = _type.Context.Target.PointerSize;
int objectSize;
if (_type.IsDefType)
{
LayoutInt instanceByteCount = ((DefType)_type).InstanceByteCount;
if (instanceByteCount.IsIndeterminate)
{
// Some value must be put in, but the specific value doesn't matter as it
// isn't used for specific instantiations, and the universal canon eetype
// is never associated with an allocated object.
objectSize = pointerSize;
}
else
{
objectSize = pointerSize +
((DefType)_type).InstanceByteCount.AsInt; // +pointerSize for SyncBlock
}
if (_type.IsValueType)
{
objectSize += pointerSize; // + EETypePtr field inherited from System.Object
}
}
else if (_type.IsArray)
{
objectSize = 3 * pointerSize; // SyncBlock + EETypePtr + Length
if (_type.IsMdArray)
{
objectSize +=
2 * sizeof(int) * ((ArrayType)_type).Rank;
}
}
else if (_type.IsPointer)
{
// These never get boxed and don't have a base size. Use a sentinel value recognized by the runtime.
objData.EmitInt(ParameterizedTypeShapeConstants.Pointer);
return;
}
else if (_type.IsByRef)
{
// These never get boxed and don't have a base size. Use a sentinel value recognized by the runtime.
objData.EmitInt(ParameterizedTypeShapeConstants.ByRef);
return;
}
else
{
throw new NotImplementedException();
}
objectSize = AlignmentHelper.AlignUp(objectSize, pointerSize);
objectSize = Math.Max(MinimumObjectSize, objectSize);
if (_type.IsString)
{
// If this is a string, throw away objectSize we computed so far. Strings are special.
// SyncBlock + EETypePtr + length + firstChar
objectSize = 2 * pointerSize +
sizeof(int) +
sizeof(char);
}
objData.EmitInt(objectSize);
}
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;
var node = factory.ConstructedTypeSymbol(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();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
ComputeOptionalEETypeFields(factory);
if (null == _optionalFieldsNode)
{
_optionalFieldsNode = factory.EETypeOptionalFields(_optionalFieldsBuilder);
}
OutputComponentSize(ref objData);
OutputFlags(factory, ref objData);
OutputBaseSize(ref objData);
OutputRelatedType(factory, ref objData);
OutputVirtualSlotAndInterfaceCount(factory, ref objData);
objData.EmitInt(_type.GetHashCode());
if (_constructed)
{
OutputVirtualSlots(factory, ref objData, _type, _type);
OutputFinalizerMethod(factory, ref objData);
OutputOptionalFields(factory, ref objData);
OutputNullableTypeParameter(factory, ref objData);
}
return objData.ToObjectData();
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
if (_type.IsArray)
{
objData.EmitShort((short)((ArrayType)_type).ElementType.GetElementSize()); // m_ComponentSize
objData.EmitShort(0x4); // m_flags: IsArray(0x4)
}
else if (_type.IsString)
{
objData.EmitShort(2); // m_ComponentSize
objData.EmitShort(0); // m_flags: 0
}
else
{
objData.EmitShort(0); // m_ComponentSize
objData.EmitShort(0); // m_flags: 0
}
int pointerSize = _type.Context.Target.PointerSize;
int minimumObjectSize = pointerSize * 3;
int objectSize;
if (_type is MetadataType)
{
objectSize = pointerSize +
((MetadataType)_type).InstanceByteCount; // +pointerSize for SyncBlock
}
else if (_type is ArrayType)
{
objectSize = 3 * pointerSize; // SyncBlock + EETypePtr + Length
int rank = ((ArrayType)_type).Rank;
if (rank > 1)
{
objectSize +=
2 * _type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() * rank;
}
}
else
{
throw new NotImplementedException();
}
objectSize = AlignmentHelper.AlignUp(objectSize, pointerSize);
objectSize = Math.Max(minimumObjectSize, objectSize);
if (_type.IsString)
{
// If this is a string, throw away objectSize we computed so far. Strings are special.
// SyncBlock + EETypePtr + length + firstChar
objectSize = 2 * pointerSize +
_type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() +
_type.Context.GetWellKnownType(WellKnownType.Char).GetElementSize();
}
objData.EmitInt(objectSize);
if (Type.BaseType != null)
{
if (_constructed)
{
objData.EmitPointerReloc(factory.ConstructedTypeSymbol(Type.BaseType));
}
else
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(Type.BaseType));
}
}
else
{
objData.EmitZeroPointer();
}
if (_constructed)
{
OutputVirtualSlots(ref objData, _type, _type, factory);
}
return(objData.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
// Todo: Generic Type Definition EETypes
// Early-out just to prevent crashing at compile time...
if (_type.HasInstantiation && _type.IsTypeDefinition)
{
objData.EmitZeroPointer();
return objData.ToObjectData();
}
ComputeOptionalEETypeFields(factory);
OutputComponentSize(ref objData);
OutputFlags(factory, ref objData);
OutputBaseSize(ref objData);
OutputRelatedType(factory, ref objData);
OutputVirtualSlotAndInterfaceCount(factory, ref objData);
objData.EmitInt(_type.GetHashCode());
if (_constructed)
{
OutputVirtualSlots(factory, ref objData, _type, _type);
OutputInterfaceMap(factory, ref objData);
}
OutputFinalizerMethod(factory, ref objData);
OutputOptionalFields(factory, ref objData);
OutputNullableTypeParameter(factory, ref objData);
return objData.ToObjectData();
}
private void OutputBaseSize(ref ObjectDataBuilder objData)
{
int pointerSize = _type.Context.Target.PointerSize;
int minimumObjectSize = pointerSize * 3;
int objectSize;
if (_type is MetadataType)
{
objectSize = pointerSize +
((MetadataType)_type).InstanceByteCount; // +pointerSize for SyncBlock
}
else if (_type is ArrayType)
{
objectSize = 3 * pointerSize; // SyncBlock + EETypePtr + Length
int rank = ((ArrayType)_type).Rank;
if (rank > 1)
objectSize +=
2 * _type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() * rank;
}
else if (_type is PointerType)
{
// Object size 0 is a sentinel value in the runtime for parameterized types that means "Pointer Type"
objData.EmitInt(0);
return;
}
else
throw new NotImplementedException();
objectSize = AlignmentHelper.AlignUp(objectSize, pointerSize);
objectSize = Math.Max(minimumObjectSize, objectSize);
if (_type.IsString)
{
// If this is a string, throw away objectSize we computed so far. Strings are special.
// SyncBlock + EETypePtr + length + firstChar
objectSize = 2 * pointerSize +
_type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() +
_type.Context.GetWellKnownType(WellKnownType.Char).GetElementSize();
}
objData.EmitInt(objectSize);
}
void EmitDispatchMap(ref ObjectDataBuilder builder, NodeFactory factory)
{
var entryCountReservation = builder.ReserveInt();
int entryCount = 0;
for (int interfaceIndex = 0; interfaceIndex < _type.RuntimeInterfaces.Length; interfaceIndex++)
{
var interfaceType = _type.RuntimeInterfaces[interfaceIndex];
Debug.Assert(interfaceType.IsInterface);
IReadOnlyList<MethodDesc> virtualSlots = factory.VTable(interfaceType).Slots;
for (int interfaceMethodSlot = 0; interfaceMethodSlot < virtualSlots.Count; interfaceMethodSlot++)
{
MethodDesc declMethod = virtualSlots[interfaceMethodSlot];
var implMethod = _type.GetClosestDefType().ResolveInterfaceMethodToVirtualMethodOnType(declMethod);
// Interface methods first implemented by a base type in the hierarchy will return null for the implMethod (runtime interface
// dispatch will walk the inheritance chain).
if (implMethod != null)
{
builder.EmitShort(checked((short)interfaceIndex));
builder.EmitShort(checked((short)interfaceMethodSlot));
builder.EmitShort(checked((short)VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, implMethod)));
entryCount++;
}
}
}
builder.EmitInt(entryCountReservation, entryCount);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.Alignment = 16;
objData.DefinedSymbols.Add(this);
if (_type.IsArray)
{
objData.EmitShort((short)((ArrayType)_type).ElementType.GetElementSize()); // m_ComponentSize
objData.EmitShort(0x4); // m_flags: IsArray(0x4)
}
else if (_type.IsString)
{
objData.EmitShort(2); // m_ComponentSize
objData.EmitShort(0); // m_flags: 0
}
else
{
objData.EmitShort(0); // m_ComponentSize
objData.EmitShort(0); // m_flags: 0
}
int pointerSize = _type.Context.Target.PointerSize;
int minimumObjectSize = pointerSize * 3;
int objectSize;
if (_type is MetadataType)
{
objectSize = pointerSize +
((MetadataType)_type).InstanceByteCount; // +pointerSize for SyncBlock
}
else if (_type is ArrayType)
{
objectSize = 3 * pointerSize; // SyncBlock + EETypePtr + Length
int rank = ((ArrayType)_type).Rank;
if (rank > 1)
objectSize +=
2 * _type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() * rank;
}
else
throw new NotImplementedException();
objectSize = AlignmentHelper.AlignUp(objectSize, pointerSize);
objectSize = Math.Max(minimumObjectSize, objectSize);
if (_type.IsString)
{
// If this is a string, throw away objectSize we computed so far. Strings are special.
// SyncBlock + EETypePtr + length + firstChar
objectSize = 2 * pointerSize +
_type.Context.GetWellKnownType(WellKnownType.Int32).GetElementSize() +
_type.Context.GetWellKnownType(WellKnownType.Char).GetElementSize();
}
objData.EmitInt(objectSize);
if (Type.BaseType != null)
{
if (_constructed)
{
objData.EmitPointerReloc(factory.ConstructedTypeSymbol(Type.BaseType));
}
else
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(Type.BaseType));
}
}
else
{
objData.EmitZeroPointer();
}
if (_constructed)
{
OutputVirtualSlots(ref objData, _type, _type, factory);
}
return objData.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 }));
}
// 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 (_methodToTemplateIndex == null)
{
BuildMethodToIdMap(factory);
}
TypeDesc containerType = null;
foreach (var method in _methodToTemplateIndex.Keys)
{
Debug.Assert(containerType == null || containerType == method.OwningType);
containerType = method.OwningType;
#if !DEBUG
break;
#endif
}
if (factory.Target.SupportsRelativePointers)
{
objData.EmitReloc(factory.NecessaryTypeSymbol(containerType), RelocType.IMAGE_REL_BASED_RELPTR32);
}
else
{
objData.EmitPointerReloc(factory.NecessaryTypeSymbol(containerType));
}
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);
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 == ((ISymbolNode)this).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);
// This is just so that EEType::Validate doesn't blow up at runtime
dataBuilder.EmitPointerReloc(this); // Related type: itself
return dataBuilder.ToObjectData();
}