/// <summary>
/// Link time code generator used to compile dynamically created methods during link time.
/// </summary>
/// <param name="compiler">The assembly compiler used to compile this method.</param>
/// <param name="methodName">The name of the created method.</param>
/// <param name="instructionSet">The instruction set.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException"><paramref name="compiler"/>, <paramref name="methodName"/> or <paramref name="instructionSet"/> is null.</exception>
/// <exception cref="System.ArgumentException"><paramref name="methodName"/> is invalid.</exception>
public static LinkerGeneratedMethod Compile(AssemblyCompiler compiler, string methodName, InstructionSet instructionSet, ITypeSystem typeSystem)
{
if (compiler == null)
throw new ArgumentNullException(@"compiler");
if (methodName == null)
throw new ArgumentNullException(@"methodName");
if (methodName.Length == 0)
throw new ArgumentException(@"Invalid method name.");
LinkerGeneratedType compilerGeneratedType = typeSystem.InternalTypeModule.GetType(@"Mosa.Tools.Compiler", @"LinkerGenerated") as LinkerGeneratedType;
// Create the type if we need to.
if (compilerGeneratedType == null)
{
compilerGeneratedType = new LinkerGeneratedType(typeSystem.InternalTypeModule, @"Mosa.Tools.Compiler", @"LinkerGenerated", null);
typeSystem.AddInternalType(compilerGeneratedType);
}
MethodSignature signature = new MethodSignature(BuiltInSigType.Void, new SigType[0]);
// Create the method
// HACK: <$> prevents the method from being called from CIL
LinkerGeneratedMethod method = new LinkerGeneratedMethod(typeSystem.InternalTypeModule, "<$>" + methodName, compilerGeneratedType, signature);
compilerGeneratedType.AddMethod(method);
LinkerMethodCompiler methodCompiler = new LinkerMethodCompiler(compiler, compiler.Pipeline.FindFirst<ICompilationSchedulerStage>(), method, instructionSet);
methodCompiler.Compile();
return method;
}
/// <summary>
/// Initializes a new instance of the <see cref="AotMethodCompiler" /> class.
/// </summary>
/// <param name="compiler">The compiler.</param>
/// <param name="method">The method.</param>
/// <param name="basicBlocks">The basic blocks.</param>
/// <param name="instructionSet">The instruction set.</param>
public AotMethodCompiler(BaseCompiler compiler, MosaMethod method, BasicBlocks basicBlocks, InstructionSet instructionSet)
: base(compiler, method, basicBlocks, instructionSet)
{
var compilerOptions = compiler.CompilerOptions;
Pipeline.Add(new IMethodCompilerStage[] {
new CILDecodingStage(),
new BasicBlockBuilderStage(),
new StackSetupStage(),
new ExceptionPrologueStage(),
new OperandAssignmentStage(),
new StaticAllocationResolutionStage(),
new CILTransformationStage(),
new ConvertCompoundMoveStage(),
(compilerOptions.EnableSSA) ? new PromoteLocalVariablesStage() : null,
(compilerOptions.EnableSSA) ? new EdgeSplitStage() : null,
(compilerOptions.EnableSSA) ? new PhiPlacementStage() : null,
(compilerOptions.EnableSSA) ? new EnterSSAStage() : null,
(compilerOptions.EnableSSA && compilerOptions.EnableSSAOptimizations) ? new SSAOptimizations() : null,
(compilerOptions.EnableSSA) ? new LeaveSSA() : null,
(compilerOptions.EnableSSA) ? new ConvertCompoundMoveStage() : null,
new PlatformStubStage(),
new PlatformEdgeSplitStage(),
new GreedyRegisterAllocatorStage(),
new StackLayoutStage(),
new EmptyBlockRemovalStage(),
new BlockOrderingStage(),
new CodeGenerationStage(),
});
}
/// <summary>
/// Creates the ISR methods.
/// </summary>
private void CreateExceptionVector()
{
var type = TypeSystem.GetTypeByName("Mosa.Kernel.x86", "IDT");
if (type == null)
return;
var method = type.FindMethodByName("ExceptionHandlerType");
if (method == null)
return;
Operand exceptionMethod = Operand.CreateSymbolFromMethod(TypeSystem, method);
Operand esp = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.ESP);
BasicBlocks basicBlocks = new BasicBlocks();
InstructionSet instructionSet = new InstructionSet(25);
Context ctx = instructionSet.CreateNewBlock(basicBlocks);
basicBlocks.AddHeaderBlock(ctx.BasicBlock);
// TODO - setup stack for call to the managed exception handler
//1.
//2.
//3. Call the managed exception handler
ctx.AppendInstruction(X86.Call, null, exceptionMethod);
var vectorMethod = Compiler.CreateLinkerMethod("ExceptionVector");
Compiler.CompileMethod(vectorMethod, basicBlocks, instructionSet);
}
/// <summary>
/// Creates the interrupt service routine (ISR) methods.
/// </summary>
private void CreateInterruptVectors()
{
RuntimeType runtimeType = typeSystem.GetType(@"Mosa.Kernel.x86.IDT");
if (runtimeType == null)
return;
RuntimeMethod runtimeMethod = runtimeType.FindMethod(@"ProcessInterrupt");
if (runtimeMethod == null)
return;
Operand interruptMethod = Operand.CreateSymbolFromMethod(runtimeMethod);
Operand esp = Operand.CreateCPURegister(BuiltInSigType.Int32, GeneralPurposeRegister.ESP);
for (int i = 0; i <= 255; i++)
{
InstructionSet instructionSet = new InstructionSet(100);
Context ctx = new Context(instructionSet);
ctx.AppendInstruction(X86.Cli);
if (i <= 7 || i >= 16 | i == 9) // For IRQ 8, 10, 11, 12, 13, 14 the cpu will automatically pushed the error code
ctx.AppendInstruction(X86.Push, null, Operand.CreateConstant(BuiltInSigType.SByte, 0x0));
ctx.AppendInstruction(X86.Push, null, Operand.CreateConstant(BuiltInSigType.SByte, (byte)i));
ctx.AppendInstruction(X86.Pushad);
ctx.AppendInstruction(X86.Call, null, interruptMethod);
ctx.AppendInstruction(X86.Popad);
ctx.AppendInstruction(X86.Add, esp, Operand.CreateConstant(BuiltInSigType.Int32, 0x08));
ctx.AppendInstruction(X86.Sti);
ctx.AppendInstruction(X86.IRetd);
LinkTimeCodeGenerator.Compile(this.compiler, @"InterruptISR" + i.ToString(), instructionSet, typeSystem);
}
}
/// <summary>
/// Creates the ISR methods.
/// </summary>
private void CreateExceptionVector()
{
RuntimeType runtimeType = typeSystem.GetType(@"Mosa.Kernel.x86.IDT");
if (runtimeType == null)
return;
RuntimeMethod runtimeMethod = runtimeType.FindMethod(@"ExceptionHandler");
if (runtimeMethod == null)
return;
SymbolOperand exceptionMethod = SymbolOperand.FromMethod(runtimeMethod);
RegisterOperand esp = new RegisterOperand(BuiltInSigType.Int32, GeneralPurposeRegister.ESP);
InstructionSet instructionSet = new InstructionSet(100);
Context ctx = new Context(instructionSet);
// TODO - setup stack for call to the managed exception handler
//1.
//2.
//3. Call the managed exception handler
ctx.AppendInstruction(Instruction.CallInstruction, null, exceptionMethod);
LinkTimeCodeGenerator.Compile(this.compiler, @"ExceptionVector", instructionSet, typeSystem);
}
/// <summary>
/// Initializes a new instance of the <see cref="BaseMethodCompiler" /> class.
/// </summary>
/// <param name="compiler">The assembly compiler.</param>
/// <param name="method">The method to compile by this instance.</param>
/// <param name="basicBlocks">The basic blocks.</param>
/// <param name="instructionSet">The instruction set.</param>
protected BaseMethodCompiler(BaseCompiler compiler, MosaMethod method, BasicBlocks basicBlocks, InstructionSet instructionSet)
{
this.Compiler = compiler;
this.Method = method;
this.Type = method.DeclaringType;
this.Scheduler = compiler.CompilationScheduler;
this.Architecture = compiler.Architecture;
this.TypeSystem = compiler.TypeSystem;
this.TypeLayout = Compiler.TypeLayout;
this.InternalTrace = Compiler.InternalTrace;
this.Linker = compiler.Linker;
this.BasicBlocks = basicBlocks ?? new BasicBlocks();
this.InstructionSet = instructionSet ?? new InstructionSet(256);
this.Pipeline = new CompilerPipeline();
this.StackLayout = new StackLayout(Architecture, method.Signature.Parameters.Count + (method.HasThis || method.HasExplicitThis ? 1 : 0));
this.VirtualRegisters = new VirtualRegisters(Architecture);
this.LocalVariables = emptyOperandList;
this.DominanceAnalysis = new DominanceAnalysis(Compiler.CompilerOptions.DominanceAnalysisFactory, this.BasicBlocks);
EvaluateParameterOperands();
this.stop = false;
Debug.Assert(this.Linker != null);
}
/// <summary>
/// Initializes a new instance of the <see cref="SimMethodCompiler" /> class.
/// </summary>
/// <param name="compiler">The compiler.</param>
/// <param name="method">The method.</param>
/// <param name="simAdapter">The sim adapter.</param>
/// <param name="basicBlocks">The basic blocks.</param>
/// <param name="instructionSet">The instruction set.</param>
public SimMethodCompiler(SimCompiler compiler, MosaMethod method, ISimAdapter simAdapter, BasicBlocks basicBlocks, InstructionSet instructionSet)
: base(compiler, method, basicBlocks, instructionSet)
{
var compilerOptions = Compiler.CompilerOptions;
// Populate the pipeline
Pipeline.Add(new IMethodCompilerStage[] {
new CILDecodingStage(),
new BasicBlockBuilderStage(),
new StackSetupStage(),
new ExceptionPrologueStage(),
new OperandAssignmentStage(),
//new SingleUseMarkerStage(),
//new OperandUsageAnalyzerStage(),
new StaticAllocationResolutionStage(),
new CILTransformationStage(),
new ConvertCompoundMoveStage(),
//new CheckIROperandCountStage(),
(compilerOptions.EnableSSA) ? new PromoteLocalVariablesStage() : null,
(compilerOptions.EnableSSA) ? new EdgeSplitStage() : null,
(compilerOptions.EnableSSA) ? new PhiPlacementStage() : null,
(compilerOptions.EnableSSA) ? new EnterSSAStage() : null,
(compilerOptions.EnableSSA && compilerOptions.EnableSSAOptimizations) ? new SSAOptimizations() : null,
(compilerOptions.EnableSSA) ? new LeaveSSA() : null,
(compilerOptions.EnableSSA) ? new ConvertCompoundMoveStage() : null,
new PlatformStubStage(),
//new CheckPlatformOperandCountStage(),
new PlatformEdgeSplitStage(),
new GreedyRegisterAllocatorStage(),
new StackLayoutStage(),
new EmptyBlockRemovalStage(),
new BlockOrderingStage(),
new SimCodeGeneratorStage(simAdapter),
});
}
/// <summary>
/// Initializes a new instance of the <see cref="TypeInitializerSchedulerStage"/> class.
/// </summary>
public TypeInitializerSchedulerStage()
{
instructionSet = new InstructionSet(1024);
ctx = new Context(instructionSet);
ctx.AppendInstruction(IR.IRInstruction.Prologue);
//ctx.Other = 0; // stacksize
}
/// <summary>
/// Initializes a new instance of the <see cref="LinkerMethodCompiler"/> class.
/// </summary>
/// <param name="assemblyCompiler">The assembly compiler executing this method compiler.</param>
/// <param name="method">The metadata of the method to compile.</param>
/// <param name="instructionSet">The instruction set.</param>
/// <exception cref="System.ArgumentNullException"><paramref name="assemblyCompiler"/>, <paramref name="method"/> or <paramref name="instructionSet"/> is null.</exception>
public LinkerMethodCompiler(AssemblyCompiler assemblyCompiler, ICompilationSchedulerStage compilationScheduler, RuntimeMethod method, InstructionSet instructionSet)
: base(assemblyCompiler, method.DeclaringType, method, instructionSet, compilationScheduler)
{
this.CreateBlock(-1, 0);
this.Pipeline.AddRange(new IMethodCompilerStage[] {
new SimpleTraceBlockOrderStage(),
new PlatformStubStage(),
new CodeGenerationStage(),
});
assemblyCompiler.Architecture.ExtendMethodCompilerPipeline(this.Pipeline);
}
/// <summary>
/// Initializes a new instance of the <see cref="LinkerMethodCompiler"/> class.
/// </summary>
/// <param name="compiler">The assembly compiler executing this method compiler.</param>
/// <param name="method">The metadata of the method to compile.</param>
/// <param name="instructionSet">The instruction set.</param>
public LinkerMethodCompiler(BaseCompiler compiler, RuntimeMethod method, InstructionSet instructionSet)
: base(compiler, method, instructionSet)
{
BasicBlocks.CreateBlock(BasicBlock.PrologueLabel, 0);
BasicBlocks.AddHeaderBlock(BasicBlocks.PrologueBlock);
this.Pipeline.AddRange(new IMethodCompilerStage[] {
new LoopAwareBlockOrderStage(),
new PlatformStubStage(),
new CodeGenerationStage(),
});
compiler.Architecture.ExtendMethodCompilerPipeline(this.Pipeline);
}
private static void CreatePrologueAndEpilogueBlocks(InstructionSet instructionSet, BasicBlocks basicBlocks)
{
// Create the prologue block
var context = instructionSet.CreateNewBlock(basicBlocks, BasicBlock.PrologueLabel);
// Add a jump instruction to the first block from the prologue
context.AppendInstruction(IRInstruction.Jmp);
context.SetBranch(0);
var prologue = context.BasicBlock;
basicBlocks.AddHeaderBlock(prologue);
// Create the epilogue block
context = instructionSet.CreateNewBlock(basicBlocks, BasicBlock.EpilogueLabel);
var epilogue = context.BasicBlock;
}
public static void Run(IInternalTrace internalLog, IPipelineStage stage, RuntimeMethod method, InstructionSet instructionSet, BasicBlocks basicBlocks)
{
if (internalLog == null)
return;
if (internalLog.TraceListener == null)
return;
if (!internalLog.TraceFilter.IsMatch(method, stage.Name))
return;
StringBuilder text = new StringBuilder();
// Line number
int index = 1;
text.AppendLine(String.Format("IR representation of method {0} after stage {1}:", method, stage.Name));
text.AppendLine();
if (basicBlocks.Count > 0)
{
foreach (BasicBlock block in basicBlocks)
{
text.AppendFormat("Block #{0} - Label L_{1:X4}", index, block.Label);
if (basicBlocks.IsHeaderBlock(block))
text.Append(" [Header]");
text.AppendLine();
text.AppendFormat(" Prev: ");
text.AppendLine(ListBlocks(block.PreviousBlocks));
LogInstructions(text, new Context(instructionSet, block));
text.AppendFormat(" Next: ");
text.AppendLine(ListBlocks(block.NextBlocks));
text.AppendLine();
index++;
}
}
else
{
LogInstructions(text, new Context(instructionSet, 0));
}
internalLog.TraceListener.SubmitInstructionTraceInformation(method, stage.Name, text.ToString());
}
private static void CreatePrologueAndEpilogueBlocks(InstructionSet instructionSet, BasicBlocks basicBlocks)
{
// Create the prologue block
Context context = new Context(instructionSet);
// Add a jump instruction to the first block from the prologue
context.AppendInstruction(IRInstruction.Jmp);
context.SetBranch(0);
context.Label = BasicBlock.PrologueLabel;
var prologue = basicBlocks.CreateBlock(BasicBlock.PrologueLabel, context.Index);
basicBlocks.AddHeaderBlock(prologue);
// Create the epilogue block
context = new Context(instructionSet);
// Add null instruction, necessary to generate a block index
context.AppendInstruction(null);
context.Label = BasicBlock.EpilogueLabel;
var epilogue = basicBlocks.CreateBlock(BasicBlock.EpilogueLabel, context.Index);
}
protected override void Run()
{
var typeInitializer = Compiler.Pipeline.FindFirst<TypeInitializerSchedulerStage>().TypeInitializerMethod;
var basicBlocks = new BasicBlocks();
var instructionSet = new InstructionSet(25);
var context = instructionSet.CreateNewBlock(basicBlocks);
basicBlocks.AddHeaderBlock(context.BasicBlock);
var entryPoint = Operand.CreateSymbolFromMethod(TypeSystem, typeInitializer);
context.AppendInstruction(IRInstruction.Call, null, entryPoint);
context.MosaMethod = typeInitializer;
var method = Compiler.CreateLinkerMethod(StartUpName);
Compiler.CompileMethod(method, basicBlocks, instructionSet);
Linker.EntryPoint = Linker.GetSymbol(method.FullName, SectionKind.Text);
}
/// <summary>
/// Creates the interrupt service routine (ISR) methods.
/// </summary>
private void CreateInterruptVectors()
{
var type = TypeSystem.GetTypeByName("Mosa.Kernel.x86", "IDT");
if (type == null)
return;
var method = type.FindMethodByName("ProcessInterrupt");
if (method == null)
return;
Operand interrupt = Operand.CreateSymbolFromMethod(TypeSystem, method);
Operand esp = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.ESP);
for (int i = 0; i <= 255; i++)
{
BasicBlocks basicBlocks = new BasicBlocks();
InstructionSet instructionSet = new InstructionSet(25);
Context ctx = instructionSet.CreateNewBlock(basicBlocks);
basicBlocks.AddHeaderBlock(ctx.BasicBlock);
ctx.AppendInstruction(X86.Cli);
if (i <= 7 || i >= 16 | i == 9) // For IRQ 8, 10, 11, 12, 13, 14 the cpu will automatically pushed the error code
ctx.AppendInstruction(X86.Push, null, Operand.CreateConstantUnsignedInt(TypeSystem, 0));
ctx.AppendInstruction(X86.Push, null, Operand.CreateConstantUnsignedInt(TypeSystem, (uint)i));
ctx.AppendInstruction(X86.Pushad);
ctx.AppendInstruction(X86.Call, null, interrupt);
ctx.AppendInstruction(X86.Popad);
ctx.AppendInstruction(X86.Add, esp, esp, Operand.CreateConstantUnsignedInt(TypeSystem, 8));
ctx.AppendInstruction(X86.Sti);
ctx.AppendInstruction(X86.IRetd);
var interruptMethod = Compiler.CreateLinkerMethod("InterruptISR" + i.ToString());
Compiler.CompileMethod(interruptMethod, basicBlocks, instructionSet);
}
}
/// <summary>
/// Splits the block.
/// </summary>
/// <param name="ctx">The context.</param>
/// <returns></returns>
private Context Split(Context ctx, BasicBlocks basicBlocks, InstructionSet instructionSet)
{
Context current = ctx.Clone();
Context next = ctx.Clone();
next.AppendInstruction(IRInstruction.BlockStart);
BasicBlock nextBlock = basicBlocks.CreateBlockWithAutoLabel(next.Index, current.BasicBlock.EndIndex);
Context nextContext = new Context(instructionSet, nextBlock);
foreach (BasicBlock block in current.BasicBlock.NextBlocks)
{
nextBlock.NextBlocks.Add(block);
block.PreviousBlocks.Remove(current.BasicBlock);
block.PreviousBlocks.Add(nextBlock);
}
current.BasicBlock.NextBlocks.Clear();
current.AppendInstruction(IRInstruction.BlockEnd);
current.BasicBlock.EndIndex = current.Index;
return nextContext;
}
/// <summary> /// Creates a method compiler /// </summary> /// <param name="method">The method to compile.</param> /// <param name="basicBlocks">The basic blocks.</param> /// <param name="instructionSet">The instruction set.</param> /// <returns></returns> public abstract BaseMethodCompiler CreateMethodCompiler(MosaMethod method, BasicBlocks basicBlocks, InstructionSet instructionSet);
/// <summary>
/// Initializes a new instance of the <see cref="BaseMethodCompiler"/> class.
/// </summary>
/// <param name="assemblyCompiler">The assembly compiler.</param>
/// <param name="type">The type, which owns the method to compile.</param>
/// <param name="method">The method to compile by this instance.</param>
/// <param name="instructionSet">The instruction set.</param>
/// <param name="compilationScheduler">The compilation scheduler.</param>
protected BaseMethodCompiler(AssemblyCompiler assemblyCompiler, RuntimeType type, RuntimeMethod method, InstructionSet instructionSet, ICompilationSchedulerStage compilationScheduler)
{
if (compilationScheduler == null)
throw new ArgumentNullException(@"compilationScheduler");
this.assemblyCompiler = assemblyCompiler;
this.method = method;
this.type = type;
this.compilationScheduler = compilationScheduler;
this.moduleTypeSystem = method.Module;
this.architecture = assemblyCompiler.Architecture;
this.typeSystem = assemblyCompiler.TypeSystem;
this.typeLayout = AssemblyCompiler.TypeLayout;
this.internalTrace = AssemblyCompiler.InternalTrace;
this.linker = assemblyCompiler.Pipeline.FindFirst<IAssemblyLinker>();
this.plugSystem = assemblyCompiler.Pipeline.FindFirst<IPlugSystem>();
this.parameters = new List<Operand>(new Operand[method.Parameters.Count]);
this.basicBlocks = new BasicBlocks();
this.instructionSet = instructionSet ?? new InstructionSet(256);
this.pipeline = new CompilerPipeline();
this.stackLayout = new StackLayout(architecture, method.Parameters.Count + (method.Signature.HasThis || method.Signature.HasExplicitThis ? 1 : 0));
this.virtualRegisterLayout = new VirtualRegisterLayout(architecture, stackLayout);
EvaluateParameterOperands();
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
if (pipeline == null)
throw new ObjectDisposedException(@"MethodCompilerBase");
foreach (IMethodCompilerStage mcs in pipeline)
{
IDisposable d = mcs as IDisposable;
if (d != null)
d.Dispose();
}
pipeline = null;
architecture = null;
linker = null;
method = null;
type = null;
instructionSet = null;
basicBlocks = null;
stackLayout = null;
locals = null;
}
/// <summary>
/// Replaces this operand in all uses and defs with the given operand.
/// </summary>
/// <param name="replacement">The replacement operand.</param>
/// <param name="instructionSet">The instruction set.</param>
public void Replace(Operand replacement, InstructionSet instructionSet)
{
// Iterate all definition sites first
foreach (int index in Definitions.ToArray())
{
Context ctx = new Context(instructionSet, index);
if (ctx.Result != null)
{
// Is this the operand?
if (ReferenceEquals(ctx.Result, this))
{
ctx.Result = replacement;
}
}
}
// Iterate all use sites
foreach (int index in Uses.ToArray())
{
Context ctx = new Context(instructionSet, index);
int opIdx = 0;
foreach (Operand r in ctx.Operands)
{
// Is this the operand?
if (ReferenceEquals(r, this))
{
ctx.SetOperand(opIdx, replacement);
}
opIdx++;
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Context"/> class.
/// </summary>
/// <param name="instructionSet">The instruction set.</param>
public Context(InstructionSet instructionSet)
: this(instructionSet, null, -1)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="Context"/> class.
/// </summary>
/// <param name="instructionSet">The instruction set.</param>
/// <param name="basicBlock">The basic block.</param>
public Context(InstructionSet instructionSet, BasicBlock basicBlock)
: this(instructionSet, basicBlock, basicBlock.Index)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="Context"/> class.
/// </summary>
/// <param name="instructionSet">The instruction set.</param>
/// <param name="index">The index.</param>
public Context(InstructionSet instructionSet, int index)
: this(instructionSet, null, index)
{
}
protected override void Run()
{
if (multibootMethod == null)
{
multibootHeader = Linker.CreateSymbol(MultibootHeaderSymbolName, SectionKind.Text, 1, 0x30);
multibootMethod = Compiler.CreateLinkerMethod("MultibootInit");
Linker.EntryPoint = Linker.GetSymbol(multibootMethod.FullName, SectionKind.Text);
WriteMultibootHeader();
return;
}
var typeInitializerSchedulerStage = Compiler.Pipeline.FindFirst<TypeInitializerSchedulerStage>();
var ecx = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.ECX);
var eax = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.EAX);
var ebx = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.EBX);
var ebp = Operand.CreateCPURegister(TypeSystem.BuiltIn.I4, GeneralPurposeRegister.EBP);
var basicBlocks = new BasicBlocks();
var instructionSet = new InstructionSet(25);
var ctx = instructionSet.CreateNewBlock(basicBlocks);
basicBlocks.AddHeaderBlock(ctx.BasicBlock);
// set sentinal on the stack to indicate the start of the stack
var zero = Operand.CreateConstant(TypeSystem.BuiltIn.I4, 0);
ctx.AppendInstruction(X86.Mov, Operand.CreateMemoryAddress(TypeSystem.BuiltIn.I4, ebp, 0), zero);
// store multiboot registers eax and ebx at 0x200000 and 0x200004 respectively
ctx.AppendInstruction(X86.Mov, ecx, Operand.CreateConstantSignedInt(TypeSystem, 0x200000));
ctx.AppendInstruction(X86.Mov, Operand.CreateMemoryAddress(TypeSystem.BuiltIn.I4, ecx, 0), eax);
ctx.AppendInstruction(X86.Mov, Operand.CreateMemoryAddress(TypeSystem.BuiltIn.I4, ecx, 4), ebx);
// call type initializer
var entryPoint = Operand.CreateSymbolFromMethod(TypeSystem, typeInitializerSchedulerStage.TypeInitializerMethod);
ctx.AppendInstruction(X86.Call, null, entryPoint);
// should never get here
ctx.AppendInstruction(X86.Ret);
Compiler.CompileMethod(multibootMethod, basicBlocks, instructionSet);
}
/// <summary>
/// Performs stage specific processing on the compiler context.
/// </summary>
void IAssemblyCompilerStage.Run()
{
if (!secondStage)
{
IntPtr entryPoint = WriteMultibootEntryPoint();
WriteMultibootHeader(entryPoint);
secondStage = true;
}
else
{
ITypeInitializerSchedulerStage typeInitializerSchedulerStage = this.compiler.Pipeline.FindFirst<ITypeInitializerSchedulerStage>();
SigType I4 = BuiltInSigType.Int32;
RegisterOperand ecx = new RegisterOperand(I4, GeneralPurposeRegister.ECX);
RegisterOperand eax = new RegisterOperand(I4, GeneralPurposeRegister.EAX);
RegisterOperand ebx = new RegisterOperand(I4, GeneralPurposeRegister.EBX);
InstructionSet instructionSet = new InstructionSet(16);
Context ctx = new Context(instructionSet);
ctx.AppendInstruction(X86.Mov, ecx, new ConstantOperand(I4, 0x200000));
ctx.AppendInstruction(X86.Mov, new MemoryOperand(ecx.Register, I4, new IntPtr(0x0)), eax);
ctx.AppendInstruction(X86.Mov, new MemoryOperand(ecx.Register, I4, new IntPtr(0x4)), ebx);
SymbolOperand entryPoint = SymbolOperand.FromMethod(typeInitializerSchedulerStage.TypeInitializerMethod);
ctx.AppendInstruction(X86.Call, null, entryPoint);
ctx.AppendInstruction(X86.Ret);
LinkerGeneratedMethod method = LinkTimeCodeGenerator.Compile(this.compiler, @"MultibootInit", instructionSet, typeSystem);
linker.EntryPoint = linker.GetSymbol(method.ToString());
}
}
/// <summary>
/// Creates a method compiler
/// </summary>
/// <param name="method">The method to compile.</param>
/// <param name="basicBlocks">The basic blocks.</param>
/// <param name="instructionSet">The instruction set.</param>
/// <returns>
/// An instance of a MethodCompilerBase for the given type/method pair.
/// </returns>
public override BaseMethodCompiler CreateMethodCompiler(MosaMethod method, BasicBlocks basicBlocks, InstructionSet instructionSet)
{
return new ExplorerMethodCompiler(this, method, basicBlocks, instructionSet, emitBinary);
}
/// <summary>
/// Setups the specified compiler.
/// </summary>
/// <param name="compiler">The compiler.</param>
public void Setup(IMethodCompiler compiler)
{
if (compiler == null)
throw new ArgumentNullException(@"compiler");
methodCompiler = compiler;
instructionSet = compiler.InstructionSet;
basicBlocks = compiler.BasicBlocks;
architecture = compiler.Architecture;
typeModule = compiler.Method.Module;
typeSystem = compiler.TypeSystem;
typeLayout = compiler.TypeLayout;
callingConvention = architecture.GetCallingConvention();
architecture.GetTypeRequirements(BuiltInSigType.IntPtr, out nativePointerSize, out nativePointerAlignment);
}
/// <summary>
/// Creates the method compiler.
/// </summary>
/// <param name="method">The method.</param>
/// <param name="basicBlocks">The basic blocks.</param>
/// <param name="instructionSet">The instruction set.</param>
/// <returns>
/// An instance of a MethodCompilerBase for the given type/method pair.
/// </returns>
public override BaseMethodCompiler CreateMethodCompiler(MosaMethod method, BasicBlocks basicBlocks, InstructionSet instructionSet)
{
return new AotMethodCompiler(this, method, basicBlocks, instructionSet);
}
/// <summary>
/// Initializes a new instance of the <see cref="Context"/> class.
/// </summary>
/// <param name="instructionSet">The instruction set.</param>
/// <param name="block">The basic block.</param>
/// <param name="index">The index.</param>
public Context(InstructionSet instructionSet, BasicBlock block, int index)
{
this.instructionSet = instructionSet;
this.index = index;
this.block = block;
}
/// <summary>
/// Initializes a new instance of the <see cref="BaseMethodCompiler"/> class.
/// </summary>
/// <param name="compiler">The assembly compiler.</param>
/// <param name="method">The method to compile by this instance.</param>
/// <param name="instructionSet">The instruction set.</param>
protected BaseMethodCompiler(BaseCompiler compiler, RuntimeMethod method, InstructionSet instructionSet)
{
this.compiler = compiler;
this.method = method;
this.type = method.DeclaringType;
this.compilationScheduler = compiler.Scheduler;
this.moduleTypeSystem = method.Module;
this.architecture = compiler.Architecture;
this.typeSystem = compiler.TypeSystem;
this.typeLayout = Compiler.TypeLayout;
this.internalTrace = Compiler.InternalTrace;
this.linker = compiler.Linker;
this.basicBlocks = new BasicBlocks();
this.instructionSet = instructionSet ?? new InstructionSet(256);
this.pipeline = new CompilerPipeline();
this.stackLayout = new StackLayout(architecture, method.Parameters.Count + (method.Signature.HasThis || method.Signature.HasExplicitThis ? 1 : 0));
this.virtualRegisterLayout = new VirtualRegisterLayout(architecture, stackLayout);
EvaluateParameterOperands();
this.stopMethodCompiler = false;
}