private void OutputGCDesc(ref ObjectDataBuilder builder)
{
if (!_constructed || _type.IsGenericDefinition)
{
Debug.Assert(GCDescSize == 0);
return;
}
GCDescEncoder.EncodeGCDesc(ref builder, _type);
}
protected override void OutputGCDesc(ref ObjectDataBuilder builder)
{
// No GCDescs for universal canonical types
if (_type.IsCanonicalSubtype(CanonicalFormKind.Universal))
{
return;
}
Debug.Assert(_type.IsCanonicalSubtype(CanonicalFormKind.Specific));
GCDescEncoder.EncodeGCDesc(ref builder, _type);
}
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 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());
}
protected override void OutputGCDesc(ref ObjectDataBuilder builder)
{
GCDescEncoder.EncodeGCDesc(ref builder, _type);
}
