private static NativeLayoutFieldDesc[] ParseFieldLayout(DefType owningType,
NativeLayoutInfoLoadContext nativeLayoutInfoLoadContext, NativeParser fieldLayoutParser)
{
if (fieldLayoutParser.IsNull)
{
return(Empty <NativeLayoutFieldDesc> .Array);
}
uint numFields = fieldLayoutParser.GetUnsigned();
var fields = new NativeLayoutFieldDesc[numFields];
for (int i = 0; i < numFields; i++)
{
TypeDesc fieldType = nativeLayoutInfoLoadContext.GetType(ref fieldLayoutParser);
NativeFormat.FieldStorage storage = (NativeFormat.FieldStorage)fieldLayoutParser.GetUnsigned();
fields[i] = new NativeLayoutFieldDesc(owningType, fieldType, storage);
}
return(fields);
}
public static void RegisterDebugDataForType(TypeBuilder typeBuilder, DefType defType, TypeBuilderState state)
{
if (!defType.IsGeneric())
{
RegisterDebugDataForNativeFormatType(typeBuilder, defType, state);
return;
}
if (defType.IsGenericDefinition)
{
// We don't yet have an encoding for open generic types
// TODO! fill this in
return;
}
NativePrimitiveEncoder encoder = new NativePrimitiveEncoder();
encoder.Init();
IntPtr gcStaticFieldData = TypeLoaderEnvironment.Instance.TryGetGcStaticFieldData(typeBuilder.GetRuntimeTypeHandle(defType));
IntPtr nonGcStaticFieldData = TypeLoaderEnvironment.Instance.TryGetNonGcStaticFieldData(typeBuilder.GetRuntimeTypeHandle(defType));
bool isUniversalGenericType = state.TemplateType != null && state.TemplateType.IsCanonicalSubtype(CanonicalFormKind.Universal);
bool embeddedTypeSizeAndFieldOffsets = isUniversalGenericType || (state.TemplateType == null);
uint instanceFieldCount = 0;
uint staticFieldCount = 0;
// GetDiagnosticFields only returns the fields that are of interest for diagnostic reporting. So it doesn't
// return a meaningful list for non-universal canonical templates
IEnumerable <FieldDesc> diagnosticFields = defType.GetDiagnosticFields();
foreach (var f in diagnosticFields)
{
if (f.IsLiteral)
{
continue;
}
if (f.IsStatic)
{
++staticFieldCount;
}
else
{
++instanceFieldCount;
}
}
SharedTypeFlags sharedTypeFlags = 0;
if (gcStaticFieldData != IntPtr.Zero)
{
sharedTypeFlags |= SharedTypeFlags.HasGCStaticFieldRegion;
}
if (nonGcStaticFieldData != IntPtr.Zero)
{
sharedTypeFlags |= SharedTypeFlags.HasNonGCStaticFieldRegion;
}
if (state.ThreadDataSize != 0)
{
sharedTypeFlags |= SharedTypeFlags.HasThreadStaticFieldRegion;
}
if (embeddedTypeSizeAndFieldOffsets)
{
sharedTypeFlags |= SerializedDebugData.SharedTypeFlags.HasTypeSize;
if (instanceFieldCount > 0)
{
sharedTypeFlags |= SerializedDebugData.SharedTypeFlags.HasInstanceFields;
}
if (staticFieldCount > 0)
{
sharedTypeFlags |= SerializedDebugData.SharedTypeFlags.HasStaticFields;
}
}
SerializeDataBlobTypeAndFlags(ref encoder, SerializedDataBlobKind.SharedType, (byte)sharedTypeFlags);
//
// The order of these writes is a contract shared between the runtime and debugger engine.
// Changes here must also be updated in the debugger reader code
//
encoder.WriteUnsignedLong((ulong)typeBuilder.GetRuntimeTypeHandle(defType).ToIntPtr().ToInt64());
encoder.WriteUnsigned((uint)defType.Instantiation.Length);
foreach (var instParam in defType.Instantiation)
{
encoder.WriteUnsignedLong((ulong)typeBuilder.GetRuntimeTypeHandle(instParam).ToIntPtr().ToInt64());
}
if (gcStaticFieldData != IntPtr.Zero)
{
encoder.WriteUnsignedLong((ulong)gcStaticFieldData.ToInt64());
}
if (nonGcStaticFieldData != IntPtr.Zero)
{
encoder.WriteUnsignedLong((ulong)nonGcStaticFieldData.ToInt64());
}
// Write the TLS offset into the native thread's TLS buffer. That index de-referenced is the thread static
// data region for this type
if (state.ThreadDataSize != 0)
{
encoder.WriteUnsigned(state.ThreadStaticOffset);
}
// Collect information debugger only requires for universal generics and dynamically loaded types
if (embeddedTypeSizeAndFieldOffsets)
{
Debug.Assert(state.TypeSize != null);
encoder.WriteUnsigned((uint)state.TypeSize);
if (instanceFieldCount > 0)
{
encoder.WriteUnsigned(instanceFieldCount);
uint i = 0;
foreach (FieldDesc f in diagnosticFields)
{
if (f.IsLiteral)
{
continue;
}
if (f.IsStatic)
{
continue;
}
encoder.WriteUnsigned(i);
encoder.WriteUnsigned((uint)f.Offset.AsInt);
i++;
}
}
if (staticFieldCount > 0)
{
encoder.WriteUnsigned(staticFieldCount);
uint i = 0;
foreach (FieldDesc f in diagnosticFields)
{
if (f.IsLiteral)
{
continue;
}
if (!f.IsStatic)
{
continue;
}
NativeLayoutFieldDesc nlfd = f as NativeLayoutFieldDesc;
FieldStorage fieldStorage;
if (nlfd != null)
{
// NativeLayoutFieldDesc's have the field storage information directly embedded in them
fieldStorage = nlfd.FieldStorage;
}
else
{
// Metadata based types do not, but the api's to get the info are available
if (f.IsThreadStatic)
{
fieldStorage = FieldStorage.TLSStatic;
}
else if (f.HasGCStaticBase)
{
fieldStorage = FieldStorage.GCStatic;
}
else
{
fieldStorage = FieldStorage.NonGCStatic;
}
}
encoder.WriteUnsigned(i);
encoder.WriteUnsigned((uint)fieldStorage);
encoder.WriteUnsigned((uint)f.Offset.AsInt);
i++;
}
}
}
Instance.ThreadSafeWriteBytes(encoder.GetBytes());
}
private static NativeLayoutFieldDesc[] ParseFieldLayout(DefType owningType,
NativeLayoutInfoLoadContext nativeLayoutInfoLoadContext, NativeParser fieldLayoutParser)
{
if (fieldLayoutParser.IsNull)
return Empty<NativeLayoutFieldDesc>.Array;
uint numFields = fieldLayoutParser.GetUnsigned();
var fields = new NativeLayoutFieldDesc[numFields];
for (int i = 0; i < numFields; i++)
{
TypeDesc fieldType = nativeLayoutInfoLoadContext.GetType(ref fieldLayoutParser);
NativeFormat.FieldStorage storage = (NativeFormat.FieldStorage)fieldLayoutParser.GetUnsigned();
fields[i] = new NativeLayoutFieldDesc(owningType, fieldType, storage);
}
return fields;
}