public FatFunctionPointerNode(MethodDesc methodRepresented)
{
// We should not create these for methods that don't have a canonical method body
Debug.Assert(methodRepresented.GetCanonMethodTarget(CanonicalFormKind.Specific) != methodRepresented);
Method = methodRepresented;
}
public MethodCodeNode(MethodDesc method)
{
Debug.Assert(!method.IsAbstract);
Debug.Assert(method.GetCanonMethodTarget(CanonicalFormKind.Specific) == method);
_method = method;
}
/// <summary>
/// Get the NativeLayout for a method from a ReadyToRun image.
/// </summary>
public bool TryGetMetadataNativeLayout(MethodDesc concreteMethod, out IntPtr nativeLayoutInfoModule, out uint nativeLayoutInfoToken)
{
nativeLayoutInfoModule = default(IntPtr);
nativeLayoutInfoToken = 0;
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
var nativeMetadataType = concreteMethod.GetTypicalMethodDefinition() as TypeSystem.NativeFormat.NativeFormatMethod;
if (nativeMetadataType == null)
return false;
var canonForm = concreteMethod.GetCanonMethodTarget(CanonicalFormKind.Specific);
var hashCode = canonForm.GetHashCode();
var loadedModulesCount = RuntimeAugments.GetLoadedModules(null);
var loadedModuleHandles = new IntPtr[loadedModulesCount];
var loadedModules = RuntimeAugments.GetLoadedModules(loadedModuleHandles);
Debug.Assert(loadedModulesCount == loadedModules);
#if SUPPORTS_R2R_LOADING
foreach (var moduleHandle in loadedModuleHandles)
{
ExternalReferencesTable externalFixupsTable;
NativeHashtable methodTemplatesHashtable = LoadHashtable(moduleHandle, ReflectionMapBlob.MetadataBasedGenericMethodsTemplateMap, out externalFixupsTable);
if (methodTemplatesHashtable.IsNull)
continue;
var enumerator = methodTemplatesHashtable.Lookup(hashCode);
var nativeMetadataUnit = nativeMetadataType.Context.ResolveMetadataUnit(moduleHandle);
NativeParser entryParser;
while (!(entryParser = enumerator.GetNext()).IsNull)
{
var entryTypeHandle = entryParser.GetUnsigned().AsHandle();
MethodDesc methodDesc = nativeMetadataUnit.GetMethod(entryTypeHandle, null);
Debug.Assert(methodDesc != null);
if (methodDesc == canonForm)
{
TypeLoaderLogger.WriteLine("Found metadata template for method " + concreteMethod.ToString() + ": " + methodDesc.ToString());
nativeLayoutInfoToken = (uint)externalFixupsTable.GetRvaFromIndex(entryParser.GetUnsigned());
if (nativeLayoutInfoToken == BadTokenFixupValue)
{
throw new BadImageFormatException();
}
nativeLayoutInfoModule = moduleHandle;
return true;
}
}
}
#endif
#endif
return false;
}
