public IEnumerable<DependencyListEntry> InstantiateDependencies(NodeFactory factory, Instantiation typeInstantiation, Instantiation methodInstantiation)
{
switch (_id)
{
case ReadyToRunHelperId.GetGCStaticBase:
case ReadyToRunHelperId.GetThreadStaticBase:
{
// If the type has a lazy static constructor, we also need the non-GC static base
// because that's where the class constructor context is.
TypeDesc type = (TypeDesc)_target;
if (factory.TypeSystemContext.HasLazyStaticConstructor(type))
{
return new[] {
new DependencyListEntry(
factory.GenericLookup.TypeNonGCStaticBase(type).GetTarget(factory, typeInstantiation, methodInstantiation),
"Dictionary dependency"),
new DependencyListEntry(
_lookupSignature.GetTarget(factory, typeInstantiation, methodInstantiation),
"Dictionary dependency") };
}
}
break;
}
// All other generic lookups just depend on the thing they point to
return new[] { new DependencyListEntry(
_lookupSignature.GetTarget(factory, typeInstantiation, methodInstantiation),
"Dictionary dependency") };
}
/// <summary>
/// Constructs a new instance of <see cref="DelegateCreationInfo"/> set up to construct a delegate of type
/// '<paramref name="delegateType"/>' pointing to '<paramref name="targetMethod"/>'.
/// </summary>
public static DelegateCreationInfo Create(TypeDesc delegateType, MethodDesc targetMethod, NodeFactory factory)
{
var context = (CompilerTypeSystemContext)delegateType.Context;
var systemDelegate = targetMethod.Context.GetWellKnownType(WellKnownType.MulticastDelegate).BaseType;
int paramCountTargetMethod = targetMethod.Signature.Length;
if (!targetMethod.Signature.IsStatic)
{
paramCountTargetMethod++;
}
DelegateInfo delegateInfo = context.GetDelegateInfo(delegateType.GetTypeDefinition());
int paramCountDelegateClosed = delegateInfo.Signature.Length + 1;
bool closed = false;
if (paramCountDelegateClosed == paramCountTargetMethod)
{
closed = true;
}
else
{
Debug.Assert(paramCountDelegateClosed == paramCountTargetMethod + 1);
}
if (targetMethod.Signature.IsStatic)
{
MethodDesc invokeThunk;
if (!closed)
{
// Open delegate to a static method
invokeThunk = delegateInfo.Thunks[DelegateThunkKind.OpenStaticThunk];
}
else
{
// Closed delegate to a static method (i.e. delegate to an extension method that locks the first parameter)
invokeThunk = delegateInfo.Thunks[DelegateThunkKind.ClosedStaticThunk];
}
var instantiatedDelegateType = delegateType as InstantiatedType;
if (instantiatedDelegateType != null)
invokeThunk = context.GetMethodForInstantiatedType(invokeThunk, instantiatedDelegateType);
// We use InitializeClosedStaticThunk for both because RyuJIT generates same code for both,
// but passes null as the first parameter for the open one.
return new DelegateCreationInfo(
factory.MethodEntrypoint(systemDelegate.GetKnownMethod("InitializeClosedStaticThunk", null)),
factory.MethodEntrypoint(targetMethod),
factory.MethodEntrypoint(invokeThunk));
}
else
{
if (!closed)
throw new NotImplementedException("Open instance delegates");
bool useUnboxingStub = targetMethod.OwningType.IsValueType;
return new DelegateCreationInfo(
factory.MethodEntrypoint(systemDelegate.GetKnownMethod("InitializeClosedInstance", null)),
factory.MethodEntrypoint(targetMethod, useUnboxingStub));
}
}
public ISymbolNode GetGCStaticEETypeNode(NodeFactory context)
{
// TODO Replace with better gcDesc computation algorithm when we add gc handling to the type system
// TODO This logic should be shared with GCStaticsNode.
bool[] gcDesc = new bool[_type.ThreadStaticFieldSize / context.Target.PointerSize + 1];
return context.GCStaticEEType(gcDesc);
}
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 ExternEETypeSymbolNode(NodeFactory factory, TypeDesc type)
: base("__EEType_" + NodeFactory.NameMangler.GetMangledTypeName(type))
{
_type = type;
EETypeNode.CheckCanGenerateEEType(factory, type);
}
private static int GetNumberOfBaseSlots(NodeFactory factory, TypeDesc owningType)
{
int baseSlots = 0;
TypeDesc baseType = owningType.BaseType;
while (baseType != null)
{
// Normalize the base type. Necessary to make this work with the lazy vtable slot
// concept - if we start with a canonical type, the base type could end up being
// something like Base<__Canon, string>. We would get "0 slots used" for weird
// base types like this.
baseType = baseType.ConvertToCanonForm(CanonicalFormKind.Specific);
// For types that have a generic dictionary, the introduced virtual method slots are
// prefixed with a pointer to the generic dictionary.
if (baseType.HasGenericDictionarySlot())
baseSlots++;
IReadOnlyList<MethodDesc> baseVirtualSlots = factory.VTable(baseType).Slots;
baseSlots += baseVirtualSlots.Count;
baseType = baseType.BaseType;
}
return baseSlots;
}
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 Compilation(
DependencyAnalyzerBase<NodeFactory> dependencyGraph,
NodeFactory nodeFactory,
IEnumerable<ICompilationRootProvider> compilationRoots,
NameMangler nameMangler,
Logger logger)
{
_dependencyGraph = dependencyGraph;
_nodeFactory = nodeFactory;
_nameMangler = nameMangler;
_logger = logger;
_dependencyGraph.ComputeDependencyRoutine += ComputeDependencyNodeDependencies;
NodeFactory.AttachToDependencyGraph(_dependencyGraph);
// TODO: hacky static field
NodeFactory.NameMangler = nameMangler;
var rootingService = new RootingServiceProvider(dependencyGraph, nodeFactory);
foreach (var rootProvider in compilationRoots)
rootProvider.AddCompilationRoots(rootingService);
// TODO: use a better owning type for multi-file friendliness
_typeGetTypeMethodThunks = new TypeGetTypeMethodThunkCache(TypeSystemContext.SystemModule.GetGlobalModuleType());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.Alignment = factory.Target.PointerSize;
if (_sorter != null)
_nestedNodesList.Sort(_sorter);
builder.DefinedSymbols.Add(_startSymbol);
foreach (EmbeddedObjectNode node in _nestedNodesList)
{
if (!relocsOnly)
node.Offset = builder.CountBytes;
node.EncodeData(ref builder, factory, relocsOnly);
if (node is ISymbolNode)
{
builder.DefinedSymbols.Add((ISymbolNode)node);
}
}
_endSymbol.SetSymbolOffset(builder.CountBytes);
builder.DefinedSymbols.Add(_endSymbol);
ObjectData objData = builder.ToObjectData();
return objData;
}
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();
}
protected Compilation(
DependencyAnalyzerBase<NodeFactory> dependencyGraph,
NodeFactory nodeFactory,
IEnumerable<ICompilationRootProvider> compilationRoots,
NameMangler nameMangler,
Logger logger)
{
_dependencyGraph = dependencyGraph;
_nodeFactory = nodeFactory;
_nameMangler = nameMangler;
_logger = logger;
_dependencyGraph.ComputeDependencyRoutine += ComputeDependencyNodeDependencies;
NodeFactory.AttachToDependencyGraph(_dependencyGraph);
// TODO: hacky static field
NodeFactory.NameMangler = nameMangler;
var rootingService = new RootingServiceProvider(dependencyGraph, nodeFactory);
foreach (var rootProvider in compilationRoots)
rootProvider.AddCompilationRoots(rootingService);
_typeGetTypeMethodThunks = new TypeGetTypeMethodThunkCache(nodeFactory.CompilationModuleGroup.GeneratedAssembly.GetGlobalModuleType());
PInvokeILProvider = new PInvokeILProvider(new PInvokeILEmitterConfiguration(!nodeFactory.CompilationModuleGroup.IsSingleFileCompilation));
_methodILCache = new ILProvider(PInvokeILProvider);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
builder.Alignment = factory.Target.PointerSize;
builder.DefinedSymbols.Add(this);
_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();
}
DispatchMapEntry[] BuildDispatchMap(NodeFactory factory)
{
ArrayBuilder<DispatchMapEntry> dispatchMapEntries = new ArrayBuilder<DispatchMapEntry>();
for (int i = 0; i < _type.RuntimeInterfaces.Length; i++)
{
var interfaceType = _type.RuntimeInterfaces[i];
Debug.Assert(interfaceType.IsInterface);
List<MethodDesc> virtualSlots;
factory.VirtualSlots.TryGetValue(interfaceType, out virtualSlots);
if (virtualSlots != null)
{
for (int j = 0; j < virtualSlots.Count; j++)
{
MethodDesc declMethod = virtualSlots[j];
var implMethod = VirtualFunctionResolution.ResolveInterfaceMethodToVirtualMethodOnType(declMethod, _type.GetClosestMetadataType());
// 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)
{
var entry = new DispatchMapEntry();
entry.InterfaceIndex = checked((short)i);
entry.InterfaceMethodSlot = checked((short)j);
entry.ImplementationMethodSlot = checked((short)VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, implMethod));
dispatchMapEntries.Add(entry);
}
}
}
}
return dispatchMapEntries.ToArray();
}
/// <summary>
/// Given a virtual method decl, return its VTable slot if the method is used on its containing type.
/// Return -1 if the virtual method is not used.
/// </summary>
public static int GetVirtualMethodSlot(NodeFactory factory, MethodDesc method)
{
// TODO: More efficient lookup of the slot
TypeDesc owningType = method.OwningType;
int baseSlots = 0;
var baseType = owningType.BaseType;
while (baseType != null)
{
List<MethodDesc> baseVirtualSlots;
factory.VirtualSlots.TryGetValue(baseType, out baseVirtualSlots);
if (baseVirtualSlots != null)
baseSlots += baseVirtualSlots.Count;
baseType = baseType.BaseType;
}
List<MethodDesc> virtualSlots = factory.VirtualSlots[owningType];
int methodSlot = -1;
for (int slot = 0; slot < virtualSlots.Count; slot++)
{
if (virtualSlots[slot] == method)
{
methodSlot = slot;
break;
}
}
return methodSlot == -1 ? -1 : baseSlots + methodSlot;
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
AddrMode thisPtr = new AddrMode(
Register.RegDirect | encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitADD(ref thisPtr, (sbyte)factory.Target.PointerSize);
encoder.EmitJMP(factory.MethodEntrypoint(_target));
}
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 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 static IEnumerable<ICompilationRootProvider> GetCompilationRoots(IEnumerable<ICompilationRootProvider> existingRoots, NodeFactory factory)
{
yield return new CppCodegenCompilationRootProvider(factory.TypeSystemContext);
foreach (var existingRoot in existingRoots)
yield return existingRoot;
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
return new DependencyList
{
new DependencyListEntry(GetDictionaryLayout(factory), "Dictionary layout"),
};
}
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 = 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();
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencies = null;
TypeDesc owningType = _method.OwningType;
if (factory.TypeSystemContext.HasEagerStaticConstructor(owningType))
{
if (dependencies == null)
dependencies = new DependencyList();
dependencies.Add(factory.EagerCctorIndirection(owningType.GetStaticConstructor()), "Eager .cctor");
}
if (_ehInfo != null && _ehInfo.Relocs != null)
{
if (dependencies == null)
dependencies = new DependencyList();
foreach (Relocation reloc in _ehInfo.Relocs)
{
dependencies.Add(reloc.Target, "reloc");
}
}
return dependencies;
}
public ObjectDataBuilder(NodeFactory factory)
{
_target = factory.Target;
_data = new ArrayBuilder<byte>();
_relocs = new ArrayBuilder<Relocation>();
Alignment = 1;
DefinedSymbols = new ArrayBuilder<ISymbolNode>();
}
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 bool ShouldSkipEmittingObjectNode(NodeFactory factory)
{
// If there is a constructed version of this node in the graph, emit that instead
if (ConstructedEETypeNode.CreationAllowed(_type))
return ((DependencyNode)factory.ConstructedTypeSymbol(_type)).Marked;
return false;
}
public ReadyToRunGenericHelperNode(NodeFactory factory, ReadyToRunHelperId helperId, object target, TypeSystemEntity dictionaryOwner)
{
_id = helperId;
_dictionaryOwner = dictionaryOwner;
_target = target;
_lookupSignature = GetLookupSignature(factory, helperId, target);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder objData = new ObjectDataBuilder(factory);
objData.DefinedSymbols.Add(this);
objData.RequirePointerAlignment();
objData.EmitZeroPointer();
return objData.ToObjectData();
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DefType closestDefType = _type.GetClosestDefType();
DependencyList dependencyList = new DependencyList();
if (_type.RuntimeInterfaces.Length > 0)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
if (implementedInterface.HasVariance)
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
continue;
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
if (closestDefType.HasGenericDictionarySlot())
{
// Generic dictionary pointer is part of the vtable and as such it gets only laid out
// at the final data emission phase. We need to report it as a non-relocation dependency.
dependencyList.Add(factory.TypeGenericDictionary(closestDefType), "Type generic dictionary");
}
// Include the optional fields by default. We don't know if optional fields will be needed until
// all of the interface usage has been stabilized. If we end up not needing it, the EEType node will not
// generate any relocs to it, and the optional fields node will instruct the object writer to skip
// emitting it.
dependencyList.Add(_optionalFieldsNode, "Optional fields");
return dependencyList;
}
public override bool ShouldSkipEmittingObjectNode(NodeFactory factory)
{
// Ensure that no duplicate EETypeOptionalFieldsNodes are emitted by letting the node Factory
// pick a winner for each given EETypeOptionalFieldsBuilder
if (factory.EETypeOptionalFields(_fieldBuilder) != this)
return true;
return !_fieldBuilder.IsAtLeastOneFieldUsed();
}
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);
}
protected override string GetName(NodeFactory factory) => $"Region {StartSymbol.GetMangledName(factory.NameMangler)}";
internal byte[] GetOptionalFieldsData(NodeFactory factory)
{
return(_optionalFieldsBuilder.GetBytes());
}
public static void GetTemplateTypeDependencies(ref DependencyList dependencies, NodeFactory factory, TypeDesc type)
{
if (!factory.MetadataManager.SupportsReflection)
{
return;
}
TypeDesc templateType = ConvertArrayOfTToRegularArray(factory, type);
if (!IsEligibleToHaveATemplate(templateType))
{
return;
}
if ((factory.Target.Abi == TargetAbi.ProjectN) && !ProjectNDependencyBehavior.EnableFullAnalysis)
{
// If the type does not have fully constructed type, don't track its dependencies.
// TODO: Remove the workaround once we stop using the STS dependency analysis.
IDependencyNode node = factory.MaximallyConstructableType(templateType);
if (!node.Marked)
{
return;
}
}
dependencies = dependencies ?? new DependencyList();
dependencies.Add(new DependencyListEntry(factory.NecessaryTypeSymbol(templateType), "Template type"));
dependencies.Add(new DependencyListEntry(factory.NativeLayout.TemplateTypeLayout(templateType), "Template Type Layout"));
}
public ImportedEETypeSymbolNode(NodeFactory factory, TypeDesc type)
: base("__imp_" + factory.NameMangler.NodeMangler.EEType(type))
{
_type = type;
}
protected override void OnMarked(NodeFactory context)
{
//Debug.Assert(_type.IsTypeDefinition || !_type.HasSameTypeDefinition(context.ArrayOfTClass), "Asking for Array<T> EEType");
}
public static void AddDependenciesDueToMethodCodePresence(ref DependencyList dependencies, NodeFactory factory, MethodDesc method)
{
AddDependenciesDueToReflectability(ref dependencies, factory, method);
if (method.HasInstantiation)
{
ExactMethodInstantiationsNode.GetExactMethodInstantiationDependenciesForMethod(ref dependencies, factory, method);
if (method.IsVirtual)
{
// Generic virtual methods dependency tracking
dependencies = dependencies ?? new DependencyList();
dependencies.Add(new DependencyListEntry(factory.GVMDependencies(method), "GVM Dependencies Support"));
}
GenericMethodsTemplateMap.GetTemplateMethodDependencies(ref dependencies, factory, method);
}
else
{
TypeDesc owningTemplateType = method.OwningType;
// Unboxing and Instantiating stubs use a different type as their template
if (factory.TypeSystemContext.IsSpecialUnboxingThunk(method))
{
owningTemplateType = factory.TypeSystemContext.GetTargetOfSpecialUnboxingThunk(method).OwningType;
}
GenericTypesTemplateMap.GetTemplateTypeDependencies(ref dependencies, factory, owningTemplateType);
}
// On Project N, the compiler doesn't generate the interop code on the fly
if (method.Context.Target.Abi != TargetAbi.ProjectN)
{
if (method.IsPInvoke)
{
if (dependencies == null)
{
dependencies = new DependencyList();
}
MethodSignature methodSig = method.Signature;
AddPInvokeParameterDependencies(ref dependencies, factory, methodSig.ReturnType);
for (int i = 0; i < methodSig.Length; i++)
{
AddPInvokeParameterDependencies(ref dependencies, factory, methodSig[i]);
}
}
}
}
private static void AddPInvokeParameterDependencies(ref DependencyList dependencies, NodeFactory factory, TypeDesc parameter)
{
if (parameter.IsDelegate)
{
dependencies.Add(factory.NecessaryTypeSymbol(parameter), "Delegate Marshalling Stub");
dependencies.Add(factory.MethodEntrypoint(factory.InteropStubManager.GetOpenStaticDelegateMarshallingStub(parameter)), "Delegate Marshalling Stub");
dependencies.Add(factory.MethodEntrypoint(factory.InteropStubManager.GetClosedDelegateMarshallingStub(parameter)), "Delegate Marshalling Stub");
dependencies.Add(factory.MethodEntrypoint(factory.InteropStubManager.GetForwardDelegateCreationStub(parameter)), "Delegate Marshalling Stub");
}
else if (Internal.TypeSystem.Interop.MarshalHelpers.IsStructMarshallingRequired(parameter))
{
var stub = (Internal.IL.Stubs.StructMarshallingThunk)factory.InteropStubManager.GetStructMarshallingManagedToNativeStub(parameter);
dependencies.Add(factory.ConstructedTypeSymbol(factory.InteropStubManager.GetStructMarshallingType(parameter)), "Struct Marshalling Type");
dependencies.Add(factory.MethodEntrypoint(stub), "Struct Marshalling stub");
dependencies.Add(factory.MethodEntrypoint(factory.InteropStubManager.GetStructMarshallingNativeToManagedStub(parameter)), "Struct Marshalling stub");
dependencies.Add(factory.MethodEntrypoint(factory.InteropStubManager.GetStructMarshallingCleanupStub(parameter)), "Struct Marshalling stub");
foreach (var inlineArrayCandidate in stub.GetInlineArrayCandidates())
{
dependencies.Add(factory.ConstructedTypeSymbol(factory.InteropStubManager.GetInlineArrayType(inlineArrayCandidate)), "Struct Marshalling Type");
foreach (var method in inlineArrayCandidate.ElementType.GetMethods())
{
dependencies.Add(factory.MethodEntrypoint(method), "inline array marshalling stub");
}
}
}
}
public override DictionaryLayoutNode GetDictionaryLayout(NodeFactory factory)
{
return(factory.GenericDictionaryLayout(_owningType.ConvertToCanonForm(CanonicalFormKind.Specific)));
}
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 }));
}
// Build the GVM table entries from the list of interesting GVMTableEntryNodes
foreach (var interestingEntry in factory.MetadataManager.GetTypeGVMEntries())
{
foreach (var typeGVMEntryInfo in interestingEntry.ScanForGenericVirtualMethodEntries())
{
AddGenericVirtualMethodImplementation(factory, typeGVMEntryInfo.CallingMethod, typeGVMEntryInfo.ImplementationMethod);
}
}
// Ensure the native layout blob has been saved
factory.MetadataManager.NativeLayoutInfo.SaveNativeLayoutInfoWriter(factory);
NativeWriter nativeFormatWriter = new NativeWriter();
VertexHashtable gvmHashtable = new VertexHashtable();
Section gvmHashtableSection = nativeFormatWriter.NewSection();
gvmHashtableSection.Place(gvmHashtable);
// Emit the GVM target information entries
foreach (var gvmEntry in _gvmImplemenations)
{
Debug.Assert(!gvmEntry.Key.OwningType.IsInterface);
foreach (var implementationEntry in gvmEntry.Value)
{
MethodDesc callingMethod = gvmEntry.Key;
TypeDesc implementationType = implementationEntry.Key;
MethodDesc implementationMethod = implementationEntry.Value;
uint callingTypeId = _externalReferences.GetIndex(factory.NecessaryTypeSymbol(callingMethod.OwningType));
Vertex vertex = nativeFormatWriter.GetUnsignedConstant(callingTypeId);
uint targetTypeId = _externalReferences.GetIndex(factory.NecessaryTypeSymbol(implementationType));
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant(targetTypeId));
var nameAndSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(callingMethod));
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)nameAndSig.SavedVertex.VertexOffset));
nameAndSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(implementationMethod));
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)nameAndSig.SavedVertex.VertexOffset));
int hashCode = callingMethod.OwningType.GetHashCode();
hashCode = ((hashCode << 13) ^ hashCode) ^ implementationType.GetHashCode();
gvmHashtable.Append((uint)hashCode, gvmHashtableSection.Place(vertex));
}
}
// Zero out the dictionary so that we AV if someone tries to insert after we're done.
_gvmImplemenations = null;
byte[] streamBytes = nativeFormatWriter.Save();
_endSymbol.SetSymbolOffset(streamBytes.Length);
return(new ObjectData(streamBytes, Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this, _endSymbol }));
}
public override IEnumerable <CombinedDependencyListEntry> GetConditionalStaticDependencies(NodeFactory factory)
{
CombinedDependencyList list = null;
factory.MetadataManager.GetConditionalDependenciesDueToMethodGenericDictionary(ref list, factory, _owningMethod);
return(list ?? (IEnumerable <CombinedDependencyListEntry>)System.Array.Empty <CombinedDependencyListEntry>());
}
public override IEnumerable <CombinedDependencyListEntry> GetConditionalStaticDependencies(NodeFactory factory)
{
// The generic dictionary layout is shared between all the canonically equivalent
// instantiations. We need to track the dependencies of all canonical method bodies
// that use the same dictionary layout.
foreach (var method in _owningType.GetAllMethods())
{
if (!EETypeNode.MethodHasNonGenericILMethodBody(method))
{
continue;
}
// If a canonical method body was compiled, we need to track the dictionary
// dependencies in the context of the concrete type that owns this dictionary.
yield return(new CombinedDependencyListEntry(
factory.ShadowConcreteMethod(method),
factory.MethodEntrypoint(method.GetCanonMethodTarget(CanonicalFormKind.Specific)),
"Generic dictionary dependency"));
}
}
public override DictionaryLayoutNode GetDictionaryLayout(NodeFactory factory)
{
return(factory.GenericDictionaryLayout(_owningMethod.GetCanonMethodTarget(CanonicalFormKind.Specific)));
}
public abstract DictionaryLayoutNode GetDictionaryLayout(NodeFactory factory);
public GenericDictionaryNode(NodeFactory factory)
{
_factory = factory;
}
protected override void EmitCode(NodeFactory factory, ref X86Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.VirtualCall:
{
encoder.EmitINT3();
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.PreinitializationManager.HasLazyStaticConstructor(target);
encoder.EmitMOV(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target));
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitMOV(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target), -NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
encoder.EmitINT3();
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
encoder.EmitINT3();
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
encoder.EmitINT3();
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
encoder.EmitINT3();
}
break;
default:
throw new NotImplementedException();
}
}
/// <summary>
/// Helper method to compute the dependencies that would be needed by a hashtable entry for a GVM call.
/// This helper is used by the TypeGVMEntriesNode, which is used by the dependency analysis to compute the
/// GVM hashtable entries for the compiled types.
/// The dependencies returned from this function will be reported as static dependencies of the TypeGVMEntriesNode,
/// which we create for each type that has generic virtual methods.
/// </summary>
public static DependencyList GetGenericVirtualMethodImplementationDependencies(NodeFactory factory, MethodDesc callingMethod, MethodDesc implementationMethod)
{
Debug.Assert(!callingMethod.OwningType.IsInterface);
DependencyList dependencyNodes = new DependencyList();
// Compute the open method signatures
MethodDesc openCallingMethod = callingMethod.GetTypicalMethodDefinition();
MethodDesc openImplementationMethod = implementationMethod.GetTypicalMethodDefinition();
var openCallingMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openCallingMethod);
var openImplementationMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openImplementationMethod);
dependencyNodes.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openCallingMethodNameAndSig), "gvm table calling method signature"));
dependencyNodes.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openImplementationMethodNameAndSig), "gvm table implementation method signature"));
return(dependencyNodes);
}
/// <summary>
/// Helper method to compute the dependencies that would be needed by a hashtable entry for a GVM call.
/// This helper is used by the TypeGVMEntriesNode, which is used by the dependency analysis to compute the
/// GVM hashtable entries for the compiled types.
/// The dependencies returned from this function will be reported as static dependencies of the TypeGVMEntriesNode,
/// which we create for each type that has generic virtual methods.
/// </summary>
public static void GetGenericVirtualMethodImplementationDependencies(ref DependencyList dependencies, NodeFactory factory, MethodDesc callingMethod, MethodDesc implementationMethod)
{
Debug.Assert(!callingMethod.OwningType.IsInterface);
if (!factory.MetadataManager.SupportsReflection)
{
return;
}
// Compute the open method signatures
MethodDesc openCallingMethod = callingMethod.GetTypicalMethodDefinition();
MethodDesc openImplementationMethod = implementationMethod.GetTypicalMethodDefinition();
var openCallingMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openCallingMethod);
var openImplementationMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openImplementationMethod);
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openCallingMethodNameAndSig), "gvm table calling method signature"));
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openImplementationMethodNameAndSig), "gvm table implementation method signature"));
}
protected override string GetName(NodeFactory factory) => this.GetMangledName(factory.NameMangler);
public static void AddDependenciesDueToReflectability(ref DependencyList dependencies, NodeFactory factory, MethodDesc method)
{
// TODO: https://github.com/dotnet/corert/issues/3224
// Reflection invoke stub handling is here because in the current reflection model we reflection-enable
// all methods that are compiled. Ideally the list of reflection enabled methods should be known before
// we even start the compilation process (with the invocation stubs being compilation roots like any other).
// The existing model has it's problems: e.g. the invocability of the method depends on inliner decisions.
if (factory.MetadataManager.IsReflectionInvokable(method))
{
if (dependencies == null)
{
dependencies = new DependencyList();
}
if (factory.MetadataManager.HasReflectionInvokeStubForInvokableMethod(method) && !method.IsCanonicalMethod(CanonicalFormKind.Any) /* Shared generics handled in the shadow concrete method node */)
{
MethodDesc canonInvokeStub = factory.MetadataManager.GetCanonicalReflectionInvokeStub(method);
if (canonInvokeStub.IsSharedByGenericInstantiations)
{
dependencies.Add(new DependencyListEntry(factory.MetadataManager.DynamicInvokeTemplateData, "Reflection invoke template data"));
factory.MetadataManager.DynamicInvokeTemplateData.AddDependenciesDueToInvokeTemplatePresence(ref dependencies, factory, canonInvokeStub);
}
else
{
dependencies.Add(new DependencyListEntry(factory.MethodEntrypoint(canonInvokeStub), "Reflection invoke"));
}
}
bool skipUnboxingStubDependency = false;
if (factory.Target.Abi == TargetAbi.ProjectN)
{
// ProjectN compilation currently computes the presence of these stubs independent from dependency analysis here
// TODO: fix that issue and remove this odd treatment of unboxing stubs
if (!method.HasInstantiation && method.OwningType.IsValueType && method.OwningType.IsCanonicalSubtype(CanonicalFormKind.Any) && !method.Signature.IsStatic)
{
skipUnboxingStubDependency = true;
}
}
if (method.OwningType.IsValueType && !method.Signature.IsStatic && !skipUnboxingStubDependency)
{
dependencies.Add(new DependencyListEntry(factory.MethodEntrypoint(method, unboxingStub: true), "Reflection unboxing stub"));
}
// If the method is defined in a different module than this one, a metadata token isn't known for performing the reference
// Use a name/sig reference instead.
if (!factory.MetadataManager.WillUseMetadataTokenToReferenceMethod(method))
{
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(method.GetTypicalMethodDefinition())),
"Non metadata-local method reference"));
}
if (method.HasInstantiation && method.IsCanonicalMethod(CanonicalFormKind.Universal))
{
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(method)),
"UniversalCanon signature of method"));
}
ReflectionVirtualInvokeMapNode.GetVirtualInvokeMapDependencies(ref dependencies, factory, method);
}
}
/// <summary>
/// Helper method to compute the dependencies that would be needed by a hashtable entry for an interface GVM call.
/// This helper is used by the TypeGVMEntriesNode, which is used by the dependency analysis to compute the
/// GVM hashtable entries for the compiled types.
/// The dependencies returned from this function will be reported as static dependencies of the TypeGVMEntriesNode,
/// which we create for each type that has generic virtual methods.
/// </summary>
public static void GetGenericVirtualMethodImplementationDependencies(ref DependencyList dependencies, NodeFactory factory, MethodDesc callingMethod, TypeDesc implementationType, MethodDesc implementationMethod)
{
Debug.Assert(callingMethod.OwningType.IsInterface);
if (!factory.MetadataManager.SupportsReflection)
{
return;
}
// Compute the open method signatures
MethodDesc openCallingMethod = callingMethod.GetTypicalMethodDefinition();
MethodDesc openImplementationMethod = implementationMethod.GetTypicalMethodDefinition();
TypeDesc openImplementationType = implementationType.GetTypeDefinition();
var openCallingMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openCallingMethod);
var openImplementationMethodNameAndSig = factory.NativeLayout.MethodNameAndSignatureVertex(openImplementationMethod);
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openCallingMethodNameAndSig), "interface gvm table calling method signature"));
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(openImplementationMethodNameAndSig), "interface gvm table implementation method signature"));
if (!openImplementationType.IsInterface)
{
for (int index = 0; index < implementationType.RuntimeInterfaces.Length; index++)
{
if (implementationType.RuntimeInterfaces[index] == callingMethod.OwningType)
{
TypeDesc currentInterface = openImplementationType.RuntimeInterfaces[index];
var currentInterfaceSignature = factory.NativeLayout.TypeSignatureVertex(currentInterface);
dependencies.Add(new DependencyListEntry(factory.NativeLayout.PlacedSignatureVertex(currentInterfaceSignature), "interface gvm table interface signature"));
}
}
}
}
protected sealed override void EmitCode(NodeFactory factory, ref X86Emitter encoder, bool relocsOnly)
{
encoder.EmitINT3();
}
public override bool ShouldSkipEmittingObjectNode(NodeFactory factory) => !factory.MetadataManager.SupportsReflection;
/// <summary>
/// Validates that it will be possible to create an EEType for '<paramref name="type"/>'.
/// </summary>
public static void CheckCanGenerateEEType(NodeFactory factory, TypeDesc type)
{
// Don't validate generic definitons
if (type.IsGenericDefinition)
{
return;
}
// System.__Canon or System.__UniversalCanon
if (type.IsCanonicalDefinitionType(CanonicalFormKind.Any))
{
return;
}
// It must be possible to create an EEType for the base type of this type
TypeDesc baseType = type.BaseType;
if (baseType != null)
{
// Make sure EEType can be created for this.
factory.NecessaryTypeSymbol(GetFullCanonicalTypeForCanonicalType(baseType));
}
// We need EETypes for interfaces
foreach (var intf in type.RuntimeInterfaces)
{
// Make sure EEType can be created for this.
factory.NecessaryTypeSymbol(GetFullCanonicalTypeForCanonicalType(intf));
}
// Validate classes, structs, enums, interfaces, and delegates
DefType defType = type as DefType;
if (defType != null)
{
// Ensure we can compute the type layout
defType.ComputeInstanceLayout(InstanceLayoutKind.TypeAndFields);
//
// The fact that we generated an EEType means that someone can call RuntimeHelpers.RunClassConstructor.
// We need to make sure this is possible.
//
if (factory.TypeSystemContext.HasLazyStaticConstructor(defType))
{
defType.ComputeStaticFieldLayout(StaticLayoutKind.StaticRegionSizesAndFields);
}
// Make sure instantiation length matches the expectation
// TODO: it might be more resonable for the type system to enforce this (also for methods)
if (defType.Instantiation.Length != defType.GetTypeDefinition().Instantiation.Length)
{
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadGeneral, type);
}
foreach (TypeDesc typeArg in defType.Instantiation)
{
// ByRefs, pointers, function pointers, and System.Void are never valid instantiation arguments
if (typeArg.IsByRef || typeArg.IsPointer || typeArg.IsFunctionPointer || typeArg.IsVoid)
{
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadGeneral, type);
}
// TODO: validate constraints
}
// Check the type doesn't have bogus MethodImpls or overrides and we can get the finalizer.
defType.GetFinalizer();
}
// Validate parameterized types
ParameterizedType parameterizedType = type as ParameterizedType;
if (parameterizedType != null)
{
TypeDesc parameterType = parameterizedType.ParameterType;
// Make sure EEType can be created for this.
factory.NecessaryTypeSymbol(parameterType);
if (parameterizedType.IsArray)
{
if (parameterType.IsPointer || parameterType.IsFunctionPointer)
{
// Arrays of pointers and function pointers are not currently supported
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadGeneral, type);
}
int elementSize = parameterType.GetElementSize().AsInt;
if (elementSize >= ushort.MaxValue)
{
// Element size over 64k can't be encoded in the GCDesc
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadValueClassTooLarge, parameterType);
}
if (((ArrayType)parameterizedType).Rank > 32)
{
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadRankTooLarge, type);
}
}
// Validate we're not constructing a type over a ByRef
if (parameterType.IsByRef)
{
// CLR compat note: "ldtoken int32&&" will actually fail with a message about int32&; "ldtoken int32&[]"
// will fail with a message about being unable to create an array of int32&. This is a middle ground.
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadGeneral, type);
}
// It might seem reasonable to disallow array of void, but the CLR doesn't prevent that too hard.
// E.g. "newarr void" will fail, but "newarr void[]" or "ldtoken void[]" will succeed.
}
// Function pointer EETypes are not currently supported
if (type.IsFunctionPointer)
{
throw new TypeSystemException.TypeLoadException(ExceptionStringID.ClassLoadGeneral, type);
}
}
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 }));
}
// Build the GVM table entries from the list of interesting GVMTableEntryNodes
foreach (var interestingEntry in factory.MetadataManager.GetTypeGVMEntries())
{
foreach (var typeGVMEntryInfo in interestingEntry.ScanForInterfaceGenericVirtualMethodEntries())
{
AddGenericVirtualMethodImplementation(factory, typeGVMEntryInfo.CallingMethod, typeGVMEntryInfo.ImplementationType, typeGVMEntryInfo.ImplementationMethod);
}
}
// Ensure the native layout blob has been saved
factory.MetadataManager.NativeLayoutInfo.SaveNativeLayoutInfoWriter(factory);
NativeWriter nativeFormatWriter = new NativeWriter();
VertexHashtable gvmHashtable = new VertexHashtable();
Section gvmHashtableSection = nativeFormatWriter.NewSection();
gvmHashtableSection.Place(gvmHashtable);
// Emit the interface slot resolution entries
foreach (var gvmEntry in _interfaceGvmSlots)
{
Debug.Assert(gvmEntry.Key.OwningType.IsInterface);
MethodDesc callingMethod = gvmEntry.Key;
// Emit the method signature and containing type of the current interface method
uint typeId = _externalReferences.GetIndex(factory.NecessaryTypeSymbol(callingMethod.OwningType));
var nameAndSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(callingMethod));
Vertex vertex = nativeFormatWriter.GetTuple(
nativeFormatWriter.GetUnsignedConstant(typeId),
nativeFormatWriter.GetUnsignedConstant((uint)nameAndSig.SavedVertex.VertexOffset));
// Emit the method name / sig and containing type of each GVM target method for the current interface method entry
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)gvmEntry.Value.Count));
foreach (MethodDesc implementationMethod in gvmEntry.Value)
{
nameAndSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.MethodNameAndSignatureVertex(implementationMethod));
typeId = _externalReferences.GetIndex(factory.NecessaryTypeSymbol(implementationMethod.OwningType));
vertex = nativeFormatWriter.GetTuple(
vertex,
nativeFormatWriter.GetUnsignedConstant((uint)nameAndSig.SavedVertex.VertexOffset),
nativeFormatWriter.GetUnsignedConstant(typeId));
// Emit the interface GVM slot details for each type that implements the interface methods
{
Debug.Assert(_interfaceImpls.ContainsKey(implementationMethod));
var ifaceImpls = _interfaceImpls[implementationMethod];
// First, emit how many types have method implementations for this interface method entry
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)ifaceImpls.Count));
// Emit each type that implements the interface method, and the interface signatures for the interfaces implemented by the type
foreach (var currentImpl in ifaceImpls)
{
TypeDesc implementationType = currentImpl.Key;
typeId = _externalReferences.GetIndex(factory.NecessaryTypeSymbol(implementationType));
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant(typeId));
// Emit information on which interfaces the current method entry provides implementations for
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)currentImpl.Value.Count));
foreach (var ifaceId in currentImpl.Value)
{
// Emit the signature of the current interface implemented by the method
Debug.Assert(((uint)ifaceId) < implementationType.RuntimeInterfaces.Length);
TypeDesc currentInterface = implementationType.RuntimeInterfaces[ifaceId];
var typeSig = factory.NativeLayout.PlacedSignatureVertex(factory.NativeLayout.TypeSignatureVertex(currentInterface));
vertex = nativeFormatWriter.GetTuple(vertex, nativeFormatWriter.GetUnsignedConstant((uint)typeSig.SavedVertex.VertexOffset));
}
}
}
}
int hashCode = callingMethod.OwningType.GetHashCode();
gvmHashtable.Append((uint)hashCode, gvmHashtableSection.Place(vertex));
}
// Zero out the dictionary so that we AV if someone tries to insert after we're done.
_interfaceGvmSlots = null;
byte[] streamBytes = nativeFormatWriter.Save();
_endSymbol.SetSymbolOffset(streamBytes.Length);
return(new ObjectData(streamBytes, Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this, _endSymbol }));
}
protected virtual ISymbolNode GetBaseTypeNode(NodeFactory factory)
{
return(_type.BaseType != null?factory.NecessaryTypeSymbol(_type.BaseType) : null);
}
public virtual ExportForm GetExportForm(NodeFactory factory) => ExportForm.ByName;
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// Dependencies for this node are tracked by the method code nodes
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this }));
}
// Ensure the native layout data has been saved, in order to get valid Vertex offsets for the signature Vertices
factory.MetadataManager.NativeLayoutInfo.SaveNativeLayoutInfoWriter(factory);
NativeWriter nativeWriter = new NativeWriter();
VertexHashtable hashtable = new VertexHashtable();
Section nativeSection = nativeWriter.NewSection();
nativeSection.Place(hashtable);
foreach (TypeDesc type in factory.MetadataManager.GetTypesWithConstructedEETypes())
{
if (!IsEligibleToHaveATemplate(type))
{
continue;
}
if ((factory.Target.Abi == TargetAbi.ProjectN) && !ProjectNDependencyBehavior.EnableFullAnalysis)
{
// If the type does not have fully constructed type, don't track its dependencies.
// TODO: Remove the workaround once we stop using the STS dependency analysis.
IDependencyNode node = factory.MaximallyConstructableType(type);
if (!node.Marked)
{
continue;
}
}
// Type's native layout info
NativeLayoutTemplateTypeLayoutVertexNode templateNode = factory.NativeLayout.TemplateTypeLayout(type);
// If this template isn't considered necessary, don't emit it.
if (!templateNode.Marked)
{
continue;
}
Vertex nativeLayout = templateNode.SavedVertex;
// Hashtable Entry
Vertex entry = nativeWriter.GetTuple(
nativeWriter.GetUnsignedConstant(_externalReferences.GetIndex(factory.NecessaryTypeSymbol(type))),
nativeWriter.GetUnsignedConstant((uint)nativeLayout.VertexOffset));
// Add to the hash table, hashed by the containing type's hashcode
uint hashCode = (uint)type.GetHashCode();
hashtable.Append(hashCode, nativeSection.Place(entry));
}
byte[] streamBytes = nativeWriter.Save();
_endSymbol.SetSymbolOffset(streamBytes.Length);
return(new ObjectData(streamBytes, Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this, _endSymbol }));
}
public MrtProcessedExportAddressTableNode(string symbolName, NodeFactory factory)
{
_symbolName = symbolName;
_factory = factory;
}
protected sealed override string GetName(NodeFactory factory)
{
return(this.GetMangledName(factory.NameMangler));
}
protected virtual void EmitDataInternal(ref ObjectDataBuilder builder, NodeFactory factory, bool fixedLayoutOnly)
{
DictionaryLayoutNode layout = GetDictionaryLayout(factory);
layout.EmitDictionaryData(ref builder, factory, this, fixedLayoutOnly: fixedLayoutOnly);
}
