public static void AddManagedSections(
this PEBuilder peBuilder,
PEDirectoriesBuilder peDirectoriesBuilder,
TypeSystemMetadataSerializer metadataSerializer,
BlobBuilder ilStream,
BlobBuilder mappedFieldData,
BlobBuilder managedResourceData,
Action<BlobBuilder, PESectionLocation> nativeResourceSectionSerializer, // opt
int strongNameSignatureSize, // TODO
MethodDefinitionHandle entryPoint,
string pdbPathOpt, // TODO
ContentId nativePdbContentId, // TODO
ContentId portablePdbContentId, // TODO
CorFlags corFlags)
{
int entryPointAddress = 0;
// .text
peBuilder.AddSection(".text", SectionCharacteristics.MemRead | SectionCharacteristics.MemExecute | SectionCharacteristics.ContainsCode, location =>
{
var sectionBuilder = new BlobBuilder();
var metadataBuilder = new BlobBuilder();
var metadataSizes = metadataSerializer.MetadataSizes;
var textSection = new ManagedTextSection(
metadataSizes.MetadataSize,
ilStreamSize: ilStream.Count,
mappedFieldDataSize: mappedFieldData.Count,
resourceDataSize: managedResourceData.Count,
strongNameSignatureSize: strongNameSignatureSize,
imageCharacteristics: peBuilder.ImageCharacteristics,
machine: peBuilder.Machine,
pdbPathOpt: pdbPathOpt,
isDeterministic: peBuilder.IsDeterministic);
int methodBodyStreamRva = location.RelativeVirtualAddress + textSection.OffsetToILStream;
int mappedFieldDataStreamRva = location.RelativeVirtualAddress + textSection.CalculateOffsetToMappedFieldDataStream();
metadataSerializer.SerializeMetadata(metadataBuilder, methodBodyStreamRva, mappedFieldDataStreamRva);
BlobBuilder debugTableBuilderOpt;
if (pdbPathOpt != null || peBuilder.IsDeterministic)
{
debugTableBuilderOpt = new BlobBuilder();
textSection.WriteDebugTable(debugTableBuilderOpt, location, nativePdbContentId, portablePdbContentId);
}
else
{
debugTableBuilderOpt = null;
}
entryPointAddress = textSection.GetEntryPointAddress(location.RelativeVirtualAddress);
textSection.Serialize(
sectionBuilder,
location.RelativeVirtualAddress,
entryPoint.IsNil ? 0 : MetadataTokens.GetToken(entryPoint),
corFlags,
peBuilder.ImageBase,
metadataBuilder,
ilStream,
mappedFieldData,
managedResourceData,
debugTableBuilderOpt);
peDirectoriesBuilder.AddressOfEntryPoint = entryPointAddress;
peDirectoriesBuilder.DebugTable = textSection.GetDebugDirectoryEntry(location.RelativeVirtualAddress);
peDirectoriesBuilder.ImportAddressTable = textSection.GetImportAddressTableDirectoryEntry(location.RelativeVirtualAddress);
peDirectoriesBuilder.ImportTable = textSection.GetImportTableDirectoryEntry(location.RelativeVirtualAddress);
peDirectoriesBuilder.CorHeaderTable = textSection.GetCorHeaderDirectoryEntry(location.RelativeVirtualAddress);
return sectionBuilder;
});
// .rsrc
if (nativeResourceSectionSerializer != null)
{
peBuilder.AddSection(".rsrc", SectionCharacteristics.MemRead | SectionCharacteristics.ContainsInitializedData, location =>
{
var sectionBuilder = new BlobBuilder();
nativeResourceSectionSerializer(sectionBuilder, location);
peDirectoriesBuilder.ResourceTable = new DirectoryEntry(location.RelativeVirtualAddress, sectionBuilder.Count);
return sectionBuilder;
});
}
// .reloc
if (peBuilder.Machine == Machine.I386 || peBuilder.Machine == 0)
{
peBuilder.AddSection(".reloc", SectionCharacteristics.MemRead | SectionCharacteristics.MemDiscardable | SectionCharacteristics.ContainsInitializedData, location =>
{
var sectionBuilder = new BlobBuilder();
WriteRelocSection(sectionBuilder, peBuilder.Machine, entryPointAddress);
peDirectoriesBuilder.BaseRelocationTable = new DirectoryEntry(location.RelativeVirtualAddress, sectionBuilder.Count);
return sectionBuilder;
});
}
}
private readonly static byte[] zeroStamp = new byte[4]; // four bytes of zero
/// <summary>
/// Write the entire "Debug Directory (Image Only)" along with data that it points to.
/// </summary>
internal void WriteDebugTable(BlobBuilder builder, PESectionLocation textSectionLocation, ContentId nativePdbContentId, ContentId portablePdbContentId)
{
Debug.Assert(builder.Count == 0);
int tableSize = ImageDebugDirectoryBaseSize;
Debug.Assert(tableSize != 0);
Debug.Assert(nativePdbContentId.IsDefault || portablePdbContentId.IsDefault);
Debug.Assert(!EmitPdb || (nativePdbContentId.IsDefault ^ portablePdbContentId.IsDefault));
int dataSize = ComputeSizeOfDebugDirectoryData();
if (EmitPdb)
{
const int IMAGE_DEBUG_TYPE_CODEVIEW = 2; // from PE spec
uint dataOffset = (uint)(ComputeOffsetToDebugTable() + tableSize);
WriteDebugTableEntry(builder,
stamp: nativePdbContentId.Stamp ?? portablePdbContentId.Stamp,
version: portablePdbContentId.IsDefault ? (uint)0 : ('P' << 24 | 'M' << 16 | 0x01 << 8 | 0x00),
debugType: IMAGE_DEBUG_TYPE_CODEVIEW,
sizeOfData: (uint)dataSize,
addressOfRawData: (uint)textSectionLocation.RelativeVirtualAddress + dataOffset, // RVA of the data
pointerToRawData: (uint)textSectionLocation.PointerToRawData + dataOffset); // position of the data in the PE stream
}
if (IsDeterministic)
{
const int IMAGE_DEBUG_TYPE_NO_TIMESTAMP = 16; // from PE spec
WriteDebugTableEntry(builder,
stamp: zeroStamp,
version: 0,
debugType: IMAGE_DEBUG_TYPE_NO_TIMESTAMP,
sizeOfData: 0,
addressOfRawData: 0,
pointerToRawData: 0);
}
// We should now have written all and precisely the data we said we'd write for the table entries.
Debug.Assert(builder.Count == tableSize);
// ====================
// The following is additional data beyond the debug directory at the offset `dataOffset`
// pointed to by the ImageDebugTypeCodeView entry.
if (EmitPdb)
{
builder.WriteByte((byte)'R');
builder.WriteByte((byte)'S');
builder.WriteByte((byte)'D');
builder.WriteByte((byte)'S');
// PDB id:
builder.WriteBytes(nativePdbContentId.Guid ?? portablePdbContentId.Guid);
// age
builder.WriteUInt32(1); // TODO: allow specify for native PDBs
// UTF-8 encoded zero-terminated path to PDB
int pathStart = builder.Count;
builder.WriteUTF8(PdbPathOpt, allowUnpairedSurrogates: true);
builder.WriteByte(0);
// padding:
builder.WriteBytes(0, Math.Max(0, MinPdbPath - (builder.Count - pathStart)));
}
// We should now have written all and precisely the data we said we'd write for the table and its data.
Debug.Assert(builder.Count == tableSize + dataSize);
}
public void Serialize(BlobBuilder builder, PEDirectoriesBuilder headers, out ContentId contentId)
{
var serializedSections = SerializeSections();
Blob stampFixup;
WritePESignature(builder);
WriteCoffHeader(builder, serializedSections, out stampFixup);
WritePEHeader(builder, headers, serializedSections);
WriteSectionHeaders(builder, serializedSections);
builder.Align(FileAlignment);
foreach (var section in serializedSections)
{
builder.LinkSuffix(section.Builder);
builder.Align(FileAlignment);
}
contentId = IdProvider(builder);
// patch timestamp in COFF header:
var stampWriter = new BlobWriter(stampFixup);
stampWriter.WriteBytes(contentId.Stamp);
Debug.Assert(stampWriter.RemainingBytes == 0);
}