public void EmitMOV(Register regDst, ushort imm16)
{
Debug.Assert((uint)regDst <= 0x1f);
uint instruction = 0xd2800000u | ((uint)imm16 << 5) | (uint)regDst;
Builder.EmitUInt(instruction);
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
if (!relocsOnly && _imports.ShouldSkipEmittingObjectNode(factory))
{
// Don't emit import section node at all if there are no entries in it
return;
}
dataBuilder.EmitReloc(_imports.StartSymbol, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
if (!relocsOnly)
{
dataBuilder.EmitInt(_imports.GetData(factory, false).Data.Length);
dataBuilder.EmitShort((short)_flags);
dataBuilder.EmitByte((byte)_type);
dataBuilder.EmitByte(_entrySize);
}
if (!_signatures.ShouldSkipEmittingObjectNode(factory))
{
dataBuilder.EmitReloc(_signatures.StartSymbol, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
}
else
{
dataBuilder.EmitUInt(0);
}
if (_emitGCRefMap)
{
dataBuilder.EmitReloc(_gcRefMap, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
}
else
{
dataBuilder.EmitUInt(0);
}
}
public static void Write(ref ObjectDataBuilder builder, ushort namedEntries, ushort idEntries)
{
builder.EmitUInt(0); // Characteristics
builder.EmitUInt(0); // TimeDateStamp
builder.EmitUShort(4); // MajorVersion
builder.EmitUShort(0); // MinorVersion
builder.EmitUShort(namedEntries);
builder.EmitUShort(idEntries);
}
internal static void EmitHeader(ref ObjectDataBuilder builder)
{
builder.EmitUInt(0 /* Characteristics */);
builder.EmitUInt(0);
builder.EmitUShort(0);
builder.EmitUShort(0);
builder.EmitInt((int)DebugDirectoryEntryType.Reproducible);
builder.EmitInt(0);
builder.EmitUInt(0);
builder.EmitUInt(0);
}
internal void EmitHeader(ref ObjectDataBuilder builder)
{
builder.EmitUInt(0); /* Characteristics */
builder.EmitUInt(0); /* Stamp */
builder.EmitUShort(1); /* Major */
builder.EmitUShort(0); /* Minor */
builder.EmitInt((int)PerfMapEntryType);
builder.EmitInt(Size);
builder.EmitReloc(this, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitReloc(this, RelocType.IMAGE_REL_FILE_ABSOLUTE);
}
internal void EmitHeader(ref ObjectDataBuilder builder, uint stamp, ushort majorVersion)
{
builder.EmitUInt(0); /* Characteristics */
builder.EmitUInt(stamp);
builder.EmitUShort(majorVersion);
// Make sure the "is portable pdb" indicator (MinorVersion == 0x504d) is clear.
// The NI PDB generated currently is a full PDB.
builder.EmitUShort(0 /* MinorVersion */);
builder.EmitInt((int)DebugDirectoryEntryType.CodeView);
builder.EmitInt(Size);
builder.EmitReloc(this, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitReloc(this, RelocType.IMAGE_REL_FILE_ABSOLUTE);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolDefinitionNode[] { this }));
}
LayoutMethodsWithEHInfo();
ObjectDataBuilder exceptionInfoLookupBuilder = new ObjectDataBuilder(factory, relocsOnly);
exceptionInfoLookupBuilder.RequireInitialAlignment(2 * sizeof(uint));
// Add the symbol representing this object node
exceptionInfoLookupBuilder.AddSymbol(this);
// First, emit the actual EH records in sequence and store map from methods to the EH record symbols
for (int index = 0; index < _methodNodes.Count; index++)
{
exceptionInfoLookupBuilder.EmitReloc(_methodNodes[index], RelocType.IMAGE_REL_BASED_ADDR32NB);
exceptionInfoLookupBuilder.EmitReloc(_ehInfoNode, RelocType.IMAGE_REL_BASED_ADDR32NB, _ehInfoOffsets[index]);
}
// Sentinel record - method RVA = -1, EH info offset = end of the EH info block
exceptionInfoLookupBuilder.EmitUInt(~0u);
exceptionInfoLookupBuilder.EmitReloc(_ehInfoNode, RelocType.IMAGE_REL_BASED_ADDR32NB, _ehInfoNode.Count);
return(exceptionInfoLookupBuilder.ToObjectData());
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
builder.AddSymbol(this);
ImmutableArray <DebugDirectoryEntry> entries = _module.PEReader.ReadDebugDirectory();
int numEntries = GetNumDebugDirectoryEntriesInModule();
// First, write the native debug directory entry
{
var entry = (NativeDebugDirectoryEntryNode)factory.DebugDirectoryEntry(_module, -1);
builder.EmitUInt(0 /* Characteristics */);
if (numEntries > 0)
{
builder.EmitUInt(entries[0].Stamp);
builder.EmitUShort(entries[0].MajorVersion);
}
else
{
builder.EmitUInt(0);
builder.EmitUShort(0);
}
// Make sure the "is portable pdb" indicator (MinorVersion == 0x504d) is clear
// for the NGen debug directory entry since this debug directory can be copied
// from an existing entry which could be a portable pdb.
builder.EmitUShort(0 /* MinorVersion */);
builder.EmitInt((int)DebugDirectoryEntryType.CodeView);
builder.EmitInt(entry.Size);
builder.EmitReloc(entry, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitReloc(entry, RelocType.IMAGE_REL_FILE_ABSOLUTE);
}
// Second, copy existing entries from input module
for (int i = 0; i < numEntries; i++)
{
builder.EmitUInt(0 /* Characteristics */);
builder.EmitUInt(entries[i].Stamp);
builder.EmitUShort(entries[i].MajorVersion);
builder.EmitUShort(entries[i].MinorVersion);
builder.EmitInt((int)entries[i].Type);
builder.EmitInt(entries[i].DataSize);
if (entries[i].DataSize == 0)
{
builder.EmitUInt(0);
builder.EmitUInt(0);
}
else
{
builder.EmitReloc(factory.DebugDirectoryEntry(_module, i), RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitReloc(factory.DebugDirectoryEntry(_module, i), RelocType.IMAGE_REL_FILE_ABSOLUTE);
}
}
Debug.Assert(builder.CountBytes == Size);
return(builder.ToObjectData());
}
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 }));
}
if (_methodNodes == null)
{
LayoutRuntimeFunctions();
}
ObjectDataBuilder runtimeFunctionsBuilder = new ObjectDataBuilder(factory, relocsOnly);
runtimeFunctionsBuilder.RequireInitialAlignment(4);
// Add the symbol representing this object node
runtimeFunctionsBuilder.AddSymbol(this);
foreach (MethodWithGCInfo method in _methodNodes)
{
int[] funcletOffsets = method.GCInfoNode.CalculateFuncletOffsets(factory);
for (int frameIndex = 0; frameIndex < method.FrameInfos.Length; frameIndex++)
{
FrameInfo frameInfo = method.FrameInfos[frameIndex];
// StartOffset of the runtime function
int codeDelta = 0;
if (Target.Architecture == TargetArchitecture.ARM)
{
// THUMB_CODE
codeDelta = 1;
}
runtimeFunctionsBuilder.EmitReloc(method, RelocType.IMAGE_REL_BASED_ADDR32NB, delta: frameInfo.StartOffset + codeDelta);
if (!relocsOnly && Target.Architecture == TargetArchitecture.X64)
{
// On Amd64, the 2nd word contains the EndOffset of the runtime function
runtimeFunctionsBuilder.EmitReloc(method, RelocType.IMAGE_REL_BASED_ADDR32NB, delta: frameInfo.EndOffset);
}
runtimeFunctionsBuilder.EmitReloc(factory.RuntimeFunctionsGCInfo.StartSymbol, RelocType.IMAGE_REL_BASED_ADDR32NB, funcletOffsets[frameIndex]);
}
}
// Emit sentinel entry
runtimeFunctionsBuilder.EmitUInt(~0u);
_tableSize = runtimeFunctionsBuilder.CountBytes;
return(runtimeFunctionsBuilder.ToObjectData());
}
public override void EncodeData(ref ObjectDataBuilder dataBuilder, NodeFactory factory, bool relocsOnly)
{
if (!_imports.ShouldSkipEmittingObjectNode(factory))
{
dataBuilder.EmitReloc(_imports.StartSymbol, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
}
else
{
dataBuilder.EmitUInt(0);
}
if (!relocsOnly)
{
dataBuilder.EmitReloc(_imports.StartSymbol, RelocType.IMAGE_REL_SYMBOL_SIZE);
dataBuilder.EmitShort((short)_flags);
dataBuilder.EmitByte((byte)_type);
dataBuilder.EmitByte(_entrySize);
}
if (!_signatures.ShouldSkipEmittingObjectNode(factory))
{
dataBuilder.EmitReloc(_signatures.StartSymbol, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
}
else
{
dataBuilder.EmitUInt(0);
}
if (_emitGCRefMap)
{
dataBuilder.EmitReloc(_gcRefMap, RelocType.IMAGE_REL_BASED_ADDR32NB, 0);
}
else
{
dataBuilder.EmitUInt(0);
}
}
private void WriteFieldRvas(NodeFactory factory, ref ObjectDataBuilder builder, ref BlobReader reader)
{
MetadataReader metadataReader = _sourceModule.MetadataReader;
var tableIndex = TableIndex.FieldRva;
int rowCount = metadataReader.GetTableRowCount(tableIndex);
bool compressedFieldRef = 6 == metadataReader.GetTableRowSize(TableIndex.FieldRva);
for (int i = 1; i <= rowCount; i++)
{
Debug.Assert(builder.CountBytes == reader.Offset);
// Rva
reader.ReadInt32();
int fieldToken;
if (compressedFieldRef)
{
fieldToken = reader.ReadInt16();
}
else
{
fieldToken = reader.ReadInt32();
}
EntityHandle fieldHandle = MetadataTokens.EntityHandle(TableIndex.Field, fieldToken);
EcmaField fieldDesc = (EcmaField)_sourceModule.GetField(fieldHandle);
Debug.Assert(fieldDesc.HasRva);
builder.EmitReloc(factory.CopiedFieldRva(fieldDesc), RelocType.IMAGE_REL_BASED_ADDR32NB);
if (compressedFieldRef)
{
builder.EmitUShort((ushort)fieldToken);
}
else
{
builder.EmitUInt((uint)fieldToken);
}
}
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataBuilder builder = new ObjectDataBuilder(factory, relocsOnly);
builder.RequireInitialPointerAlignment();
builder.AddSymbol(this);
BlobReader reader = _module.PEReader.GetEntireImage().GetReader();
reader.Offset = _module.PEReader.PEHeaders.CorHeaderStartOffset;
// Header Size
int headerSize = reader.ReadInt32();
builder.EmitInt(headerSize);
// Runtime major, minor version
builder.EmitUShort(reader.ReadUInt16());
builder.EmitUShort(reader.ReadUInt16());
// Metadata Directory
ReadDirectoryEntry(ref reader);
var metadataBlob = factory.CopiedMetadataBlob(_module);
builder.EmitReloc(metadataBlob, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitInt(metadataBlob.Size);
// Flags
builder.EmitUInt((uint)(((CorFlags)reader.ReadUInt32() & ~CorFlags.ILOnly) | CorFlags.ILLibrary));
// Entrypoint
builder.EmitInt(reader.ReadInt32());
// Resources Directory
if (ReadDirectoryEntry(ref reader).Size > 0)
{
var managedResources = factory.CopiedManagedResources(_module);
builder.EmitReloc(managedResources, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitInt(managedResources.Size);
}
else
{
WriteEmptyDirectoryEntry(ref builder);
}
// Strong Name Signature Directory
if (ReadDirectoryEntry(ref reader).Size > 0)
{
var strongNameSignature = factory.CopiedStrongNameSignature(_module);
builder.EmitReloc(strongNameSignature, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitInt(strongNameSignature.Size);
}
else
{
WriteEmptyDirectoryEntry(ref builder);
}
// Code Manager Table Directory
ReadDirectoryEntry(ref reader);
WriteEmptyDirectoryEntry(ref builder);
// VTable Fixups Directory
ReadDirectoryEntry(ref reader);
WriteEmptyDirectoryEntry(ref builder);
// Export Address Table Jumps Directory
ReadDirectoryEntry(ref reader);
WriteEmptyDirectoryEntry(ref builder);
// Managed Native (ReadyToRun) Header Directory
ReadDirectoryEntry(ref reader);
builder.EmitReloc(factory.Header, RelocType.IMAGE_REL_BASED_ADDR32NB);
builder.EmitReloc(factory.Header, RelocType.IMAGE_REL_SYMBOL_SIZE);
// Did we fully read the header?
Debug.Assert(reader.Offset - headerSize == _module.PEReader.PEHeaders.CorHeaderStartOffset);
Debug.Assert(builder.CountBytes == headerSize);
Debug.Assert(headerSize == Size);
return(builder.ToObjectData());
}
public void WriteResources(ISymbolNode nodeAssociatedWithDataBuilder, ref ObjectDataBuilder dataBuilder)
{
Debug.Assert(dataBuilder.CountBytes == 0);
SortedDictionary <string, List <ObjectDataBuilder.Reservation> > nameTable = new SortedDictionary <string, List <ObjectDataBuilder.Reservation> >();
Dictionary <ResLanguage, int> dataEntryTable = new Dictionary <ResLanguage, int>();
List <Tuple <ResType, ObjectDataBuilder.Reservation> > resTypes = new List <Tuple <ResType, ObjectDataBuilder.Reservation> >();
List <Tuple <ResName, ObjectDataBuilder.Reservation> > resNames = new List <Tuple <ResName, ObjectDataBuilder.Reservation> >();
List <Tuple <ResLanguage, ObjectDataBuilder.Reservation> > resLanguages = new List <Tuple <ResLanguage, ObjectDataBuilder.Reservation> >();
IMAGE_RESOURCE_DIRECTORY.Write(ref dataBuilder, checked ((ushort)_resTypeHeadName.Count), checked ((ushort)_resTypeHeadID.Count));
foreach (KeyValuePair <string, ResType> res in _resTypeHeadName)
{
resTypes.Add(new Tuple <ResType, ObjectDataBuilder.Reservation>(res.Value, IMAGE_RESOURCE_DIRECTORY_ENTRY.Write(ref dataBuilder, res.Key, nameTable)));
}
foreach (KeyValuePair <ushort, ResType> res in _resTypeHeadID)
{
resTypes.Add(new Tuple <ResType, ObjectDataBuilder.Reservation>(res.Value, IMAGE_RESOURCE_DIRECTORY_ENTRY.Write(ref dataBuilder, res.Key)));
}
foreach (Tuple <ResType, ObjectDataBuilder.Reservation> type in resTypes)
{
dataBuilder.EmitUInt(type.Item2, (uint)dataBuilder.CountBytes | 0x80000000);
IMAGE_RESOURCE_DIRECTORY.Write(ref dataBuilder, checked ((ushort)type.Item1.NameHeadName.Count), checked ((ushort)type.Item1.NameHeadID.Count));
foreach (KeyValuePair <string, ResName> res in type.Item1.NameHeadName)
{
resNames.Add(new Tuple <ResName, ObjectDataBuilder.Reservation>(res.Value, IMAGE_RESOURCE_DIRECTORY_ENTRY.Write(ref dataBuilder, res.Key, nameTable)));
}
foreach (KeyValuePair <ushort, ResName> res in type.Item1.NameHeadID)
{
resNames.Add(new Tuple <ResName, ObjectDataBuilder.Reservation>(res.Value, IMAGE_RESOURCE_DIRECTORY_ENTRY.Write(ref dataBuilder, res.Key)));
}
}
foreach (Tuple <ResName, ObjectDataBuilder.Reservation> type in resNames)
{
dataBuilder.EmitUInt(type.Item2, (uint)dataBuilder.CountBytes | 0x80000000);
IMAGE_RESOURCE_DIRECTORY.Write(ref dataBuilder, 0, checked ((ushort)type.Item1.Languages.Count));
foreach (KeyValuePair <ushort, ResLanguage> res in type.Item1.Languages)
{
resLanguages.Add(new Tuple <ResLanguage, ObjectDataBuilder.Reservation>(res.Value, IMAGE_RESOURCE_DIRECTORY_ENTRY.Write(ref dataBuilder, res.Key)));
}
}
// Emit name table
dataBuilder.PadAlignment(2); // name table is 2 byte aligned
foreach (KeyValuePair <string, List <ObjectDataBuilder.Reservation> > name in nameTable)
{
foreach (ObjectDataBuilder.Reservation reservation in name.Value)
{
dataBuilder.EmitUInt(reservation, (uint)dataBuilder.CountBytes | 0x80000000);
}
dataBuilder.EmitUShort(checked ((ushort)name.Key.Length));
foreach (char c in name.Key)
{
dataBuilder.EmitUShort((ushort)c);
}
}
// Emit byte arrays of resource data, capture the offsets
foreach (Tuple <ResLanguage, ObjectDataBuilder.Reservation> language in resLanguages)
{
dataBuilder.PadAlignment(4); // Data in resource files is 4 byte aligned
dataEntryTable.Add(language.Item1, dataBuilder.CountBytes);
dataBuilder.EmitBytes(language.Item1.DataEntry);
}
dataBuilder.PadAlignment(4); // resource data entries are 4 byte aligned
foreach (Tuple <ResLanguage, ObjectDataBuilder.Reservation> language in resLanguages)
{
dataBuilder.EmitInt(language.Item2, dataBuilder.CountBytes);
IMAGE_RESOURCE_DATA_ENTRY.Write(ref dataBuilder, nodeAssociatedWithDataBuilder, dataEntryTable[language.Item1], language.Item1.DataEntry.Length);
}
dataBuilder.PadAlignment(4); // resource data entries are 4 byte aligned
}
// Assembly stub creation api. TBD, actually make this general purpose
public void EmitBreak()
{
Builder.EmitUInt(0x002a0005);
}