/// <summary>
/// This thunk is used to lazily resolve Finalizer calls
/// </summary>
/// <param name="obj">Object to be finalized</param>
private static void FinalizeThunk(object obj)
{
RuntimeTypeHandle rthType = RuntimeAugments.GetRuntimeTypeHandleFromObjectReference(obj);
TypeSystemContext context = TypeSystemContextFactory.Create();
TypeDesc type = context.ResolveRuntimeTypeHandle(rthType);
MethodDesc finalizer = type.GetFinalizer();
IntPtr fnPtrFinalizer;
if (!TryGetVTableCallableAddress(finalizer, out fnPtrFinalizer))
{
Environment.FailFast("Method address lookup failed for: " + finalizer.ToString());
}
TypeSystemContextFactory.Recycle(context);
unsafe
{
rthType.ToEETypePtr()->FinalizerCode = fnPtrFinalizer;
}
// Call the finalizer directly. No need to play tricks with tail calling, as this is rare enough, it shouldn't happen much
// Here we take advantage of the detail that the calling convention abi for a static function
// that returns no values, and takes a single object parameter matches that of a
// instance function that takes no parameters
Intrinsics.Call(fnPtrFinalizer, obj);
}
private static void CctorHelper()
{
s_resolveCallOnReferenceTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnReferenceTypeDel)ResolveCallOnReferenceType);
s_resolveCallOnValueTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnValueTypeDel)ResolveCallOnValueType);
s_resolveCallOnReferenceTypeCacheMissFunc = RuntimeAugments.RegisterResolutionFunctionWithRuntimeCache(
Intrinsics.AddrOf((RuntimeCacheFuncSignatureDel)ResolveCallOnReferenceTypeCacheMiss));
}
/// <summary>
/// Get the thunk that can represent all finalizers of metadata represented objects.
/// </summary>
public static IntPtr GetFinalizerThunk()
{
// Here we take advantage of the detail that the calling convention abi for a static function
// that returns no values, and takes a single object parameter matches that of a
// instance function that takes no parameters
return(Intrinsics.AddrOf(new Action <object>(FinalizeThunk)));
}
/// <summary>
/// Initialize module info and construct per-module metadata reader.
/// </summary>
/// <param name="moduleHandle">Handle (address) of module to initialize</param>
internal ModuleInfo(TypeManagerHandle moduleHandle, ModuleType moduleType)
{
Handle = moduleHandle;
ModuleType = moduleType;
DynamicModule *dynamicModulePtr = (DynamicModule *)MemoryHelpers.AllocateMemory(sizeof(DynamicModule));
dynamicModulePtr->CbSize = DynamicModule.DynamicModuleSize;
Debug.Assert(sizeof(DynamicModule) >= dynamicModulePtr->CbSize);
if ((moduleType == ModuleType.ReadyToRun) || (moduleType == ModuleType.Ecma))
{
// Dynamic type load modules utilize dynamic type resolution
dynamicModulePtr->DynamicTypeSlotDispatchResolve = Intrinsics.AddrOf(
(Func <IntPtr, IntPtr, ushort, IntPtr>)ResolveTypeSlotDispatch);
}
else
{
Debug.Assert(moduleType == ModuleType.Eager);
// Pre-generated modules do not
dynamicModulePtr->DynamicTypeSlotDispatchResolve = IntPtr.Zero;
}
dynamicModulePtr->GetRuntimeException = Intrinsics.AddrOf(
(Func <ExceptionIDs, Exception>)RuntimeExceptionHelpers.GetRuntimeException);
DynamicModulePtr = dynamicModulePtr;
}
private static void CctorHelper()
{
s_resolveCallOnReferenceTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnReferenceTypeDel)ResolveCallOnReferenceType);
s_resolveCallOnValueTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnValueTypeDel)ResolveCallOnValueType);
s_resolveDirectConstrainedCallFuncPtr = Intrinsics.AddrOf((Func <IntPtr, IntPtr, IntPtr>)ResolveDirectConstrainedCall);
s_boxAndToStringFuncPtr = Intrinsics.AddrOf((BoxAndCallDel <string>)BoxAndToString);
s_boxAndGetHashCodeFuncPtr = Intrinsics.AddrOf((BoxAndCallDel <int>)BoxAndGetHashCode);
s_boxAndEqualsFuncPtr = Intrinsics.AddrOf((BoxAndCallDel2 <bool>)BoxAndEquals);
}
private static void CctorHelper()
{
s_resolveCallOnReferenceTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnReferenceTypeDel)ResolveCallOnReferenceType);
s_resolveCallOnValueTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnValueTypeDel)ResolveCallOnValueType);
s_resolveDirectConstrainedCallFuncPtr = Intrinsics.AddrOf((Func <IntPtr, IntPtr, IntPtr>)ResolveDirectConstrainedCall);
s_boxAndToStringFuncPtr = Intrinsics.AddrOf((BoxAndCallDel <string>)BoxAndToString);
s_boxAndGetHashCodeFuncPtr = Intrinsics.AddrOf((BoxAndCallDel <int>)BoxAndGetHashCode);
s_boxAndEqualsFuncPtr = Intrinsics.AddrOf((BoxAndCallDel2 <bool>)BoxAndEquals);
s_resolveCallOnReferenceTypeCacheMissFunc = RuntimeAugments.RegisterResolutionFunctionWithRuntimeCache(
Intrinsics.AddrOf((RuntimeCacheFuncSignatureDel)ResolveCallOnReferenceTypeCacheMiss));
}
/// <summary>
/// Build initial array of vtable thunks. These thunks are the ones directly embedded in
/// the typeloader codebase instead of being dynamically generated out of the thunk pool.
/// </summary>
private static IntPtr[] InitialThunks()
{
IntPtr firstResolverThunk;
int thunkCount;
int thunkSize = VTableResolver_Init(out firstResolverThunk,
Intrinsics.AddrOf(new Func <IntPtr, IntPtr, IntPtr>(VTableResolveThunk)),
RuntimeAugments.GetUniversalTransitionThunk(),
out thunkCount);
IntPtr[] initialThunks = new IntPtr[thunkCount];
for (int i = 0; i < thunkCount; i++)
{
unsafe
{
initialThunks[i] = (IntPtr)(((byte *)firstResolverThunk) + (thunkSize * i));
}
}
return(initialThunks);
}
/// <summary>
/// Initialize module info and construct per-module metadata reader.
/// </summary>
/// <param name="moduleHandle">Handle (address) of module to initialize</param>
internal ModuleInfo(IntPtr moduleHandle, ModuleType moduleType)
{
Handle = moduleHandle;
ModuleType = moduleType;
byte *pBlob;
uint cbBlob;
if (RuntimeAugments.FindBlob(moduleHandle, (int)ReflectionMapBlob.EmbeddedMetadata, new IntPtr(&pBlob), new IntPtr(&cbBlob)))
{
MetadataReader = new MetadataReader((IntPtr)pBlob, (int)cbBlob);
}
DynamicModule *dynamicModulePtr = (DynamicModule *)MemoryHelpers.AllocateMemory(sizeof(DynamicModule));
dynamicModulePtr->CbSize = DynamicModule.DynamicModuleSize;
Debug.Assert(sizeof(DynamicModule) >= dynamicModulePtr->CbSize);
#if SUPPORTS_R2R_LOADING
if (moduleType == ModuleType.ReadyToRun)
{
// ReadyToRun modules utilize dynamic type resolution
dynamicModulePtr->DynamicTypeSlotDispatchResolve = Intrinsics.AddrOf(
(Func <IntPtr, IntPtr, ushort, IntPtr>)ReadyToRunCallbacks.ResolveTypeSlotDispatch);
}
else
#endif
{
Debug.Assert(moduleType == ModuleType.Eager);
// Pre-generated modules do not
dynamicModulePtr->DynamicTypeSlotDispatchResolve = IntPtr.Zero;
}
dynamicModulePtr->GetRuntimeException = Intrinsics.AddrOf(
(Func <ExceptionIDs, Exception>)RuntimeExceptionHelpers.GetRuntimeException);
DynamicModulePtr = dynamicModulePtr;
}
private static IntPtr SetupMethodEntrypoints()
{
return(MethodEntrypointStubs_SetupPointers(RuntimeAugments.GetUniversalTransitionThunk(),
Intrinsics.AddrOf <Func <IntPtr, IntPtr, IntPtr> >(EntrypointThunk)));
}
private static void CctorHelper()
{
s_resolveCallOnReferenceTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnReferenceTypeDel)ResolveCallOnReferenceType);
s_resolveCallOnValueTypeFuncPtr = Intrinsics.AddrOf((ResolveCallOnValueTypeDel)ResolveCallOnValueType);
}