public void CompileMethod(MethodDesc method)
{
_compilation.Log.WriteLine("Compiling " + method.ToString());
SpecialMethodKind kind = method.DetectSpecialMethodKind();
if (kind != SpecialMethodKind.Unknown)
{
string specialMethodCode = CompileSpecialMethod(method, kind);
_compilation.GetRegisteredMethod(method).MethodCode = specialMethodCode;
return;
}
var methodIL = _compilation.GetMethodIL(method);
if (methodIL == null)
{
return;
}
string methodCode;
try
{
var ilImporter = new ILImporter(_compilation, this, method, methodIL);
CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;
if (!_compilation.Options.NoLineNumbers)
{
IEnumerable <ILSequencePoint> sequencePoints = typeSystemContext.GetSequencePointsForMethod(method);
if (sequencePoints != null)
{
ilImporter.SetSequencePoints(sequencePoints);
}
}
IEnumerable <LocalVariable> localVariables = typeSystemContext.GetLocalVariableNamesForMethod(method);
if (localVariables != null)
{
ilImporter.SetLocalVariables(localVariables);
}
IEnumerable <string> parameters = typeSystemContext.GetParameterNamesForMethod(method);
if (parameters != null)
{
ilImporter.SetParameterNames(parameters);
}
methodCode = ilImporter.Compile();
}
catch (Exception e)
{
_compilation.Log.WriteLine(e.Message + " (" + method + ")");
methodCode = GetCppMethodDeclaration(method, true) + " { throw 0xC000C000; }" + Environment.NewLine;
}
_compilation.GetRegisteredMethod(method).MethodCode = methodCode;
}
protected override void ComputeDependencyNodeDependencies(List <DependencyNodeCore <NodeFactory> > obj)
{
foreach (DependencyNodeCore <NodeFactory> dependency in obj)
{
var methodCodeNodeNeedingCode = dependency as ScannedMethodNode;
if (methodCodeNodeNeedingCode == null)
{
// To compute dependencies of the shadow method that tracks dictionary
// dependencies we need to ensure there is code for the canonical method body.
var dependencyMethod = (ShadowConcreteMethodNode)dependency;
methodCodeNodeNeedingCode = (ScannedMethodNode)dependencyMethod.CanonicalMethodNode;
}
// We might have already compiled this method.
if (methodCodeNodeNeedingCode.StaticDependenciesAreComputed)
{
continue;
}
MethodDesc method = methodCodeNodeNeedingCode.Method;
try
{
var importer = new ILImporter(this, method);
methodCodeNodeNeedingCode.InitializeDependencies(_nodeFactory, importer.Import());
}
catch (TypeSystemException ex)
{
// Try to compile the method again, but with a throwing method body this time.
MethodIL throwingIL = TypeSystemThrowingILEmitter.EmitIL(method, ex);
var importer = new ILImporter(this, method, throwingIL);
methodCodeNodeNeedingCode.InitializeDependencies(_nodeFactory, importer.Import());
}
}
}
void TestMethodsWithInvalidIL(InvalidILTestCase invalidILTestCase)
{
ILImporter importer = ConstructILImporter(invalidILTestCase);
var verifierErrors = new List <VerifierError>();
importer.ReportVerificationError = new Action <VerificationErrorArgs>((err) =>
{
verifierErrors.Add(err.Code);
});
try
{
importer.Verify();
}
catch
{
//in some cases ILVerify throws exceptions when things look too wrong to continue
//currently these are not caught. In tests we just catch these and do the asserts.
//Once these exceptions are better handled and ILVerify instead of crashing aborts the verification
//gracefully we can remove this empty catch block.
}
finally
{
Assert.Equal(invalidILTestCase.ExpectedVerifierErrors.Count, verifierErrors.Count);
foreach (var item in invalidILTestCase.ExpectedVerifierErrors)
{
Assert.True(verifierErrors.Contains(item));
}
}
}
private void CompileSingleMethod(ScannedMethodNode methodCodeNodeNeedingCode)
{
MethodDesc method = methodCodeNodeNeedingCode.Method;
try
{
var importer = new ILImporter(this, method);
methodCodeNodeNeedingCode.InitializeDependencies(_nodeFactory, importer.Import());
}
catch (TypeSystemException ex)
{
// Try to compile the method again, but with a throwing method body this time.
MethodIL throwingIL = TypeSystemThrowingILEmitter.EmitIL(method, ex);
var importer = new ILImporter(this, method, throwingIL);
methodCodeNodeNeedingCode.InitializeDependencies(_nodeFactory, importer.Import(), ex);
}
catch (Exception ex)
{
throw new CodeGenerationFailedException(method, ex);
}
finally
{
if (_compilationCountdown != null)
{
_compilationCountdown.Signal();
}
}
}
public void InterpretMethod(ref CallInterceptorArgs callInterceptorArgs)
{
_callInterceptorArgs = callInterceptorArgs;
ILImporter importer = new ILImporter(this, _method, _methodIL);
importer.Interpret();
}
protected override void ComputeDependencyNodeDependencies(List <DependencyNodeCore <NodeFactory> > obj)
{
foreach (WebAssemblyMethodCodeNode methodCodeNodeNeedingCode in obj)
{
ILImporter.CompileMethod(this, methodCodeNodeNeedingCode);
}
}
void TestMethodsWithValidIL(ValidILTestCase validIL)
{
ILImporter importer = ConstructILImporter(validIL);
var verifierErrors = new List <VerifierError>();
importer.ReportVerificationError = new Action <VerificationErrorArgs>((err) =>
{
verifierErrors.Add(err.Code);
});
importer.Verify();
Assert.Equal(0, verifierErrors.Count);
}
protected override void ComputeDependencyNodeDependencies(List <DependencyNodeCore <NodeFactory> > obj)
{
foreach (var dependency in obj)
{
var methodCodeNodeNeedingCode = dependency as WebAssemblyMethodCodeNode;
if (methodCodeNodeNeedingCode == null)
{
// To compute dependencies of the shadow method that tracks dictionary
// dependencies we need to ensure there is code for the canonical method body.
var dependencyMethod = (ShadowConcreteMethodNode)dependency;
methodCodeNodeNeedingCode = (WebAssemblyMethodCodeNode)dependencyMethod.CanonicalMethodNode;
}
// We might have already compiled this method.
if (methodCodeNodeNeedingCode.StaticDependenciesAreComputed)
{
continue;
}
ILImporter.CompileMethod(this, methodCodeNodeNeedingCode);
}
}
public void CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode)
{
MethodDesc method = methodCodeNodeNeedingCode.Method;
_compilation.Log.WriteLine("Compiling " + method.ToString());
SpecialMethodKind kind = method.DetectSpecialMethodKind();
if (kind != SpecialMethodKind.Unknown)
{
string specialMethodCode = CompileSpecialMethod(method, kind);
methodCodeNodeNeedingCode.SetCode(specialMethodCode, Array.Empty <Object>());
return;
}
var methodIL = _compilation.GetMethodIL(method);
if (methodIL == null)
{
return;
}
try
{
var ilImporter = new ILImporter(_compilation, this, method, methodIL);
CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;
if (!_compilation.Options.NoLineNumbers)
{
IEnumerable <ILSequencePoint> sequencePoints = typeSystemContext.GetSequencePointsForMethod(method);
if (sequencePoints != null)
{
ilImporter.SetSequencePoints(sequencePoints);
}
}
IEnumerable <ILLocalVariable> localVariables = typeSystemContext.GetLocalVariableNamesForMethod(method);
if (localVariables != null)
{
ilImporter.SetLocalVariables(localVariables);
}
IEnumerable <string> parameters = typeSystemContext.GetParameterNamesForMethod(method);
if (parameters != null)
{
ilImporter.SetParameterNames(parameters);
}
ilImporter.Compile(methodCodeNodeNeedingCode);
}
catch (Exception e)
{
_compilation.Log.WriteLine(e.Message + " (" + method + ")");
var builder = new CppGenerationBuffer();
builder.AppendLine();
builder.Append(GetCppMethodDeclaration(method, true));
builder.AppendLine();
builder.Append("{");
builder.Indent();
builder.AppendLine();
builder.Append("throw 0xC000C000;");
builder.Exdent();
builder.AppendLine();
builder.Append("}");
methodCodeNodeNeedingCode.SetCode(builder.ToString(), Array.Empty <Object>());
}
}
private IEnumerable <VerificationResult> VerifyMethod(EcmaModule module, MethodIL methodIL, MethodDefinitionHandle methodHandle)
{
var builder = new ArrayBuilder <VerificationResult>();
MethodDesc method = methodIL.OwningMethod;
try
{
var importer = new ILImporter(method, methodIL);
importer.ReportVerificationError = (args) =>
{
var codeResource = _stringResourceManager.Value.GetString(args.Code.ToString(), CultureInfo.InvariantCulture);
builder.Add(new VerificationResult()
{
Method = methodHandle,
Error = args,
Message = string.IsNullOrEmpty(codeResource) ? args.Code.ToString() : codeResource
});
};
importer.Verify();
}
catch (VerificationException)
{
// a result was reported already (before aborting)
}
catch (BadImageFormatException)
{
builder.Add(new VerificationResult()
{
Method = methodHandle,
Message = "Unable to resolve token"
});
}
catch (NotImplementedException e)
{
reportException(e);
}
catch (InvalidProgramException e)
{
reportException(e);
}
catch (PlatformNotSupportedException e)
{
reportException(e);
}
catch (VerifierException e)
{
reportException(e);
}
catch (TypeSystemException e)
{
reportException(e);
}
return(builder.ToArray());
void reportException(Exception e)
{
builder.Add(new VerificationResult()
{
Method = methodHandle,
Message = e.Message
});
}
}
public void CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode)
{
MethodDesc method = methodCodeNodeNeedingCode.Method;
_compilation.Logger.Writer.WriteLine("Compiling " + method.ToString());
if (method.HasCustomAttribute("System.Runtime", "RuntimeImportAttribute"))
{
CompileExternMethod(methodCodeNodeNeedingCode, ((EcmaMethod)method).GetRuntimeImportName());
return;
}
if (method.IsRawPInvoke())
{
CompileExternMethod(methodCodeNodeNeedingCode, method.GetPInvokeMethodMetadata().Name ?? method.Name);
return;
}
var methodIL = _compilation.GetMethodIL(method);
if (methodIL == null)
{
return;
}
try
{
// TODO: hacky special-case
if (method.Name == "_ecvt_s")
{
throw new NotImplementedException();
}
var ilImporter = new ILImporter(_compilation, this, method, methodIL);
CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;
MethodDebugInformation debugInfo = _compilation.GetDebugInfo(methodIL);
if (!_compilation.Options.HasOption(CppCodegenConfigProvider.NoLineNumbersString))
{
IEnumerable <ILSequencePoint> sequencePoints = debugInfo.GetSequencePoints();
if (sequencePoints != null)
{
ilImporter.SetSequencePoints(sequencePoints);
}
}
IEnumerable <ILLocalVariable> localVariables = debugInfo.GetLocalVariables();
if (localVariables != null)
{
ilImporter.SetLocalVariables(localVariables);
}
IEnumerable <string> parameters = GetParameterNamesForMethod(method);
if (parameters != null)
{
ilImporter.SetParameterNames(parameters);
}
ilImporter.Compile(methodCodeNodeNeedingCode);
}
catch (Exception e)
{
_compilation.Logger.Writer.WriteLine(e.Message + " (" + method + ")");
var sb = new CppGenerationBuffer();
sb.AppendLine();
AppendCppMethodDeclaration(sb, method, true);
sb.AppendLine();
sb.Append("{");
sb.Indent();
sb.AppendLine();
sb.Append("throw 0xC000C000;");
sb.Exdent();
sb.AppendLine();
sb.Append("}");
methodCodeNodeNeedingCode.SetCode(sb.ToString(), Array.Empty <Object>());
}
}
private void GetCodeForReadyToRunGenericHelper(WebAssemblyCodegenCompilation compilation, ReadyToRunGenericHelperNode node, NodeFactory factory)
{
LLVMBuilderRef builder = compilation.Module.Context.CreateBuilder();
var args = new List <LLVMTypeRef>();
MethodDesc delegateCtor = null;
if (node.Id == ReadyToRunHelperId.DelegateCtor)
{
DelegateCreationInfo target = (DelegateCreationInfo)node.Target;
delegateCtor = target.Constructor.Method;
bool isStatic = delegateCtor.Signature.IsStatic;
int argCount = delegateCtor.Signature.Length;
if (!isStatic)
{
argCount++;
}
for (int i = 0; i < argCount; i++)
{
TypeDesc argType;
if (i == 0 && !isStatic)
{
argType = delegateCtor.OwningType;
}
else
{
argType = delegateCtor.Signature[i - (isStatic ? 0 : 1)];
}
args.Add(ILImporter.GetLLVMTypeForTypeDesc(argType));
}
}
LLVMValueRef helperFunc = Module.GetNamedFunction(node.GetMangledName(factory.NameMangler));
if (helperFunc.Handle == IntPtr.Zero)
{
throw new Exception("if the function is requested here, it should have been created earlier");
}
var helperBlock = helperFunc.AppendBasicBlock("genericHelper");
builder.PositionAtEnd(helperBlock);
var importer = new ILImporter(builder, compilation, Module, helperFunc, delegateCtor);
LLVMValueRef ctx;
string gepName;
if (node is ReadyToRunGenericLookupFromTypeNode)
{
// Locate the VTable slot that points to the dictionary
int vtableSlot = VirtualMethodSlotHelper.GetGenericDictionarySlot(factory, (TypeDesc)node.DictionaryOwner);
int pointerSize = factory.Target.PointerSize;
// Load the dictionary pointer from the VTable
int slotOffset = EETypeNode.GetVTableOffset(pointerSize) + (vtableSlot * pointerSize);
var slotGep = builder.BuildGEP(helperFunc.GetParam(1), new[] { LLVMValueRef.CreateConstInt(LLVMTypeRef.Int32, (ulong)slotOffset, false) }, "slotGep");
var slotGepPtrPtr = builder.BuildPointerCast(slotGep,
LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), 0), "slotGepPtrPtr");
ctx = builder.BuildLoad(slotGepPtrPtr, "dictGep");
gepName = "typeNodeGep";
}
else
{
ctx = helperFunc.GetParam(1);
gepName = "paramGep";
}
LLVMValueRef resVar = OutputCodeForDictionaryLookup(builder, factory, node, node.LookupSignature, ctx, gepName);
switch (node.Id)
{
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)node.Target;
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
importer.OutputCodeForTriggerCctor(target, resVar);
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)node.Target;
var ptrPtrPtr = builder.BuildBitCast(resVar, LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), 0), 0), "ptrPtrPtr");
resVar = builder.BuildLoad(builder.BuildLoad(ptrPtrPtr, "ind1"), "ind2");
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
var nonGcStaticsBase = OutputCodeForDictionaryLookup(builder, factory, node, nonGcRegionLookup, ctx, "lazyGep");
importer.OutputCodeForTriggerCctor(target, nonGcStaticsBase);
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)node.Target;
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
var threadStaticBase = OutputCodeForDictionaryLookup(builder, factory, node, nonGcRegionLookup, ctx, "tsGep");
importer.OutputCodeForTriggerCctor(target, threadStaticBase);
}
resVar = importer.OutputCodeForGetThreadStaticBaseForType(resVar).ValueAsType(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), builder);
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)node.Target;
MethodDesc constructor = target.Constructor.Method;
var fatPtr = ILImporter.MakeFatPointer(builder, resVar, compilation);
importer.OutputCodeForDelegateCtorInit(builder, helperFunc, constructor, fatPtr);
}
break;
// These are all simple: just get the thing from the dictionary and we're done
case ReadyToRunHelperId.TypeHandle:
case ReadyToRunHelperId.MethodHandle:
case ReadyToRunHelperId.FieldHandle:
case ReadyToRunHelperId.MethodDictionary:
case ReadyToRunHelperId.MethodEntry:
case ReadyToRunHelperId.VirtualDispatchCell:
case ReadyToRunHelperId.DefaultConstructor:
break;
default:
throw new NotImplementedException();
}
if (node.Id != ReadyToRunHelperId.DelegateCtor)
{
builder.BuildRet(resVar);
}
else
{
builder.BuildRetVoid();
}
}
public void CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode)
{
MethodDesc method = methodCodeNodeNeedingCode.Method;
_compilation.Logger.Writer.WriteLine("Compiling " + method.ToString());
if (method.HasCustomAttribute("System.Runtime", "RuntimeImportAttribute"))
{
CompileExternMethod(methodCodeNodeNeedingCode, ((EcmaMethod)method).GetRuntimeImportName());
return;
}
if (method.IsRawPInvoke())
{
CompileExternMethod(methodCodeNodeNeedingCode, method.GetPInvokeMethodMetadata().Name ?? method.Name);
return;
}
var methodIL = _compilation.GetMethodIL(method);
if (methodIL == null)
{
return;
}
// TODO: Remove this code once CppCodegen is able to generate code for the reflection startup path.
// The startup path runs before any user code is executed.
// For now we replace the startup path with a simple "ret". Reflection won't work, but
// programs not using reflection will.
if (method.Name == ".cctor")
{
MetadataType owningType = method.OwningType as MetadataType;
if (owningType != null &&
owningType.Name == "ReflectionExecution" && owningType.Namespace == "Internal.Reflection.Execution")
{
methodIL = new Internal.IL.Stubs.ILStubMethodIL(method, new byte[] { (byte)ILOpcode.ret }, Array.Empty <LocalVariableDefinition>(), null);
}
}
try
{
// TODO: hacky special-case
if (method.Name == "_ecvt_s")
{
throw new NotImplementedException();
}
var ilImporter = new ILImporter(_compilation, this, method, methodIL);
CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;
MethodDebugInformation debugInfo = _compilation.GetDebugInfo(methodIL);
if (!_compilation.Options.HasOption(CppCodegenConfigProvider.NoLineNumbersString))
{
IEnumerable <ILSequencePoint> sequencePoints = debugInfo.GetSequencePoints();
if (sequencePoints != null)
{
ilImporter.SetSequencePoints(sequencePoints);
}
}
IEnumerable <ILLocalVariable> localVariables = debugInfo.GetLocalVariables();
if (localVariables != null)
{
ilImporter.SetLocalVariables(localVariables);
}
IEnumerable <string> parameters = GetParameterNamesForMethod(method);
if (parameters != null)
{
ilImporter.SetParameterNames(parameters);
}
ilImporter.Compile(methodCodeNodeNeedingCode);
}
catch (Exception e)
{
_compilation.Logger.Writer.WriteLine(e.Message + " (" + method + ")");
var sb = new CppGenerationBuffer();
sb.AppendLine();
AppendCppMethodDeclaration(sb, method, true);
sb.AppendLine();
sb.Append("{");
sb.Indent();
sb.AppendLine();
sb.Append("throw 0xC000C000;");
sb.Exdent();
sb.AppendLine();
sb.Append("}");
methodCodeNodeNeedingCode.SetCode(sb.ToString(), Array.Empty <Object>());
}
}
private void VerifyMethod(MethodDesc method, MethodIL methodIL)
{
// Console.WriteLine("Verifying: " + method.ToString());
try
{
var importer = new ILImporter(method, methodIL);
importer.ReportVerificationError = (args) =>
{
var message = new StringBuilder();
message.Append("[IL]: Error: ");
message.Append("[");
message.Append(_typeSystemContext.GetModulePath(((EcmaMethod)method).Module));
message.Append(" : ");
message.Append(((EcmaType)method.OwningType).Name);
message.Append("::");
message.Append(method.Name);
message.Append("]");
message.Append("[offset 0x");
message.Append(args.Offset.ToString("X8"));
message.Append("]");
if (args.Found != null)
{
message.Append("[found ");
message.Append(args.Found);
message.Append("]");
}
if (args.Expected != null)
{
message.Append("[expected ");
message.Append(args.Expected);
message.Append("]");
}
if (args.Token != 0)
{
message.Append("[token 0x");
message.Append(args.Token.ToString("X8"));
message.Append("]");
}
message.Append(" ");
if (_stringResourceManager == null)
{
_stringResourceManager = new ResourceManager("ILVerify.Resources.Strings", Assembly.GetExecutingAssembly());
}
var str = _stringResourceManager.GetString(args.Code.ToString(), CultureInfo.InvariantCulture);
message.Append(string.IsNullOrEmpty(str) ? args.Code.ToString() : str);
Console.WriteLine(message);
_numErrors++;
};
importer.Verify();
}
catch (NotImplementedException e)
{
Console.Error.WriteLine($"Error in {method}: {e.Message}");
}
catch (InvalidProgramException e)
{
Console.Error.WriteLine($"Error in {method}: {e.Message}");
}
catch (VerificationException)
{
}
catch (BadImageFormatException)
{
Console.WriteLine("Unable to resolve token");
}
catch (PlatformNotSupportedException e)
{
Console.WriteLine(e.Message);
}
}
private void VerifyMethod(MethodDesc method, MethodIL methodIL)
{
// Console.WriteLine("Verifying: " + method.ToString());
try
{
var importer = new ILImporter(method, methodIL);
importer.ReportVerificationError = (args) =>
{
var message = new StringBuilder();
message.Append("[IL]: Error: ");
message.Append("[");
message.Append(_typeSystemContext.GetModulePath(((EcmaMethod)method).Module));
message.Append(" : ");
message.Append(((EcmaType)method.OwningType).Name);
message.Append("::");
message.Append(method.Name);
message.Append("]");
message.Append("[offset 0x");
message.Append(args.Offset.ToString("X8"));
message.Append("]");
if (args.Found != null)
{
message.Append("[found ");
message.Append(args.Found);
message.Append("]");
}
if (args.Expected != null)
{
message.Append("[expected ");
message.Append(args.Expected);
message.Append("]");
}
if (args.Token != 0)
{
message.Append("[token 0x");
message.Append(args.Token.ToString("X8"));
message.Append("]");
}
message.Append(" ");
message.Append(SR.GetResourceString(args.Code.ToString(), null) ?? args.Code.ToString());
Console.WriteLine(message);
_numErrors++;
};
importer.Verify();
}
catch (VerificationException)
{
}
catch (BadImageFormatException)
{
Console.WriteLine("Unable to resolve token");
}
catch (PlatformNotSupportedException e)
{
Console.WriteLine(e.Message);
}
}