public GCStaticsNode(MetadataType type, PreinitializationManager preinitManager)
{
Debug.Assert(!type.IsCanonicalSubtype(CanonicalFormKind.Specific));
_type = type;
if (preinitManager.IsPreinitialized(type))
{
_preinitializationInfo = preinitManager.GetPreinitializationInfo(_type);
}
}
public GCStaticsPreInitDataNode(TypePreinit.PreinitializationInfo preinitializationInfo)
{
Debug.Assert(!preinitializationInfo.Type.IsCanonicalSubtype(CanonicalFormKind.Specific));
_preinitializationInfo = preinitializationInfo;
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
// If the type has a class constructor, its non-GC statics section is prefixed
// by System.Runtime.CompilerServices.StaticClassConstructionContext struct.
if (factory.PreinitializationManager.HasLazyStaticConstructor(_type))
{
int alignmentRequired = Math.Max(_type.NonGCStaticFieldAlignment.AsInt, GetClassConstructorContextAlignment(_type.Context.Target));
int classConstructorContextStorageSize = GetClassConstructorContextStorageSize(factory.Target, _type);
builder.RequireInitialAlignment(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
MethodDesc cctorMethod = _type.GetStaticConstructor();
builder.EmitPointerReloc(factory.ExactCallableAddress(cctorMethod));
builder.EmitZeroPointer();
}
else
{
builder.RequireInitialAlignment(_type.NonGCStaticFieldAlignment.AsInt);
}
if (_preinitializationManager.IsPreinitialized(_type))
{
TypePreinit.PreinitializationInfo preinitInfo = _preinitializationManager.GetPreinitializationInfo(_type);
int initialOffset = builder.CountBytes;
foreach (FieldDesc field in _type.GetFields())
{
if (!field.IsStatic || field.HasRva || field.IsLiteral || field.IsThreadStatic || field.HasGCStaticBase)
{
continue;
}
int padding = field.Offset.AsInt - builder.CountBytes + initialOffset;
Debug.Assert(padding >= 0);
builder.EmitZeros(padding);
TypePreinit.ISerializableValue val = preinitInfo.GetFieldValue(field);
int currentOffset = builder.CountBytes;
val.WriteFieldData(ref builder, factory);
Debug.Assert(builder.CountBytes - currentOffset == field.FieldType.GetElementSize().AsInt);
}
int pad = _type.NonGCStaticFieldSize.AsInt - builder.CountBytes + initialOffset;
Debug.Assert(pad >= 0);
builder.EmitZeros(pad);
}
else
{
builder.EmitZeros(_type.NonGCStaticFieldSize.AsInt);
}
builder.AddSymbol(this);
return(builder.ToObjectData());
}
