private ILeafContainer ReadType(out long dataSize)
{
ushort length = ReadUInt16();
if (length == 0)
{
dataSize = sizeof(ushort);
return(null);
}
dataSize = sizeof(ushort) + length;
Position -= sizeof(ushort);
#if false //$TODO
{
var leafDataBuf = ReadBytes((int)length + sizeof(ushort));
UInt32 leafHash = HasherV2.HashBufferV8(leafDataBuf, 0xFFFFFFFF);
UInt32 hash = HasherV2.HashData(leafDataBuf, Header.Hash.NumHashBuckets);
Position -= sizeof(ushort) + length;
}
#endif
//OnLeafData?.Invoke(leafDataBuf);
var typeSpan = Memory.Slice((int)Position, (int)dataSize);
TypeDataReader rdr = new TypeDataReader(ctx, new SpanStream(typeSpan));
Position += dataSize;
return(rdr.ReadTypeLazy());
}
public LeafContainerBase ReadTypeDirect(bool hasSize = true)
{
long typeStartOffset = Position;
UInt16 size = 0;
if (hasSize)
{
size = ReadUInt16();
}
LeafType leafType = ReadEnum <LeafType>();
ILeaf typeSym = CreateLeafStream(leafType);
typeSym.Read();
ConsumePadding();
#if !PEFF
long typeDataSize = size + sizeof(UInt16);
UInt32 typeHash = PerformAt(typeStartOffset, () => {
byte[] typeData = ReadBytes((int)typeDataSize);
return(HasherV2.HashBufferV8(typeData, 0xFFFFFFFF));
});
#endif
return(new DirectLeafProvider(0, leafType, typeSym));
}
public LeafContainerBase ReadTypeDirect(bool hasSize = true)
{
long typeStartOffset = Position;
UInt16 size = 0;
if (hasSize)
{
size = ReadUInt16();
if (size == 0)
{
throw new InvalidDataException("Leaf size field cannot be 0");
}
}
LeafType leafType = ReadEnum <LeafType>();
ILeaf typeSym = CreateLeafStream(leafType);
typeSym.Read();
Position += (typeSym as LeafBase).Length;
ConsumePadding();
// for PDB 1.0: hash collides with padding, and is not properly encoded sometimes
AlignStream(2);
#if !PEFF
long typeDataSize = size + sizeof(UInt16);
UInt32 typeHash = PerformAt(typeStartOffset, () => {
byte[] typeData = ReadBytes((int)typeDataSize);
return(HasherV2.HashBufferV8(typeData, 0xFFFFFFFF));
});
#endif
return(new DirectLeafProvider(0, leafType, typeSym));
}
public PDBFile(FileStream stream)
{
this.fs = stream;
this.StreamTable = Services.GetService <StreamTableReader>();
this.mf = MemoryMappedFile.CreateFromFile(stream, null, 0, MemoryMappedFileAccess.Read, HandleInheritability.Inheritable, true);
this.FileType = DetectPdbType();
Services.AddService <PDBFile>(this);
//$TODO
if (this.FileType == PDBType.Small)
{
throw new NotImplementedException($"Small/Old/JG PDBs not supported/tested yet");
}
MSFReader msf = new MSFReader(mf, stream.Length);
Services.AddService <MSFReader>(msf);
StreamTableReader streamTable;
// init stream table
{
byte[] streamTableData = msf.StreamTable();
streamTable = new StreamTableReader(Services, streamTableData);
}
Services.AddService <StreamTableReader>(streamTable);
DBIReader dbi;
// init DBI
{
byte[] dbiData = streamTable.GetStream(DefaultStreams.DBI);
dbi = new DBIReader(Services, dbiData);
OnDbiInit?.Invoke(dbi);
}
Services.AddService <DBIReader>(dbi);
TPIReader tpi;
// init TPI
{
byte[] tpiData = streamTable.GetStream(DefaultStreams.TPI);
tpi = new TPIReader(Services, new SpanStream(tpiData));
OnTpiInit?.Invoke(tpi);
}
Services.AddService <TPIReader>(tpi);
TPIHashReader tpiHash = null;
// init TPIHash
if (tpi.Header.Hash.StreamNumber != -1)
{
byte[] tpiHashData = streamTable.GetStream(tpi.Header.Hash.StreamNumber);
tpiHash = new TPIHashReader(Services, tpiHashData);
Services.AddService <TPIHashReader>(tpiHash);
}
// init resolver
TypeResolver resolver = new TypeResolver(Services);
Services.AddService <TypeResolver>(resolver);
// init Hasher
HasherV2 hasher = new HasherV2(Services);
Services.AddService <HasherV2>(hasher);
PdbStreamReader nameMap;
// init NameMap
{
byte[] nameMapData = streamTable.GetStream(DefaultStreams.PDB);
nameMap = new PdbStreamReader(nameMapData);
}
Services.AddService <PdbStreamReader>(nameMap);
NamedStreamTableReader namedStreamTable = new NamedStreamTableReader(Services);
Services.AddService <NamedStreamTableReader>(namedStreamTable);
UdtNameTableReader udtNameTable = null;
// init UdtNameMap
{
byte[] namesData = namedStreamTable.GetStreamByName("/names");
if (namesData != null)
{
udtNameTable = new UdtNameTableReader(Services, namesData);
Services.AddService <UdtNameTableReader>(udtNameTable);
}
}
}
public PDBFile(FileStream stream)
{
this.fs = stream;
this.mf = MemoryMappedFile.CreateFromFile(stream, null, 0, MemoryMappedFileAccess.Read, HandleInheritability.Inheritable, true);
this.memSpan = new MemoryMappedSpan <byte>(mf, (int)fs.Length);
this.StreamTable = Services.GetService <StreamTableReader>();
Services.AddService <PDBFile>(this);
this.Type = MSFReader.DetectPdbType(memSpan.GetSpan());
MSFReader msf = null;
StreamTableReader streamTable = null;
if (Type != PDBType.Old)
{
switch (Type)
{
case PDBType.Big:
msf = new MSFReaderDS(memSpan.Memory);
break;
case PDBType.Small:
msf = new MSFReaderJG(memSpan.Memory);
break;
default:
throw new InvalidOperationException();
}
Services.AddService <MSFReader>(msf);
// init stream table
{
byte[] streamTableData = msf.StreamTable();
streamTable = new StreamTableReader(Services, streamTableData);
}
Services.AddService <StreamTableReader>(streamTable);
DBIReader dbi;
// init DBI
{
byte[] dbiData = streamTable.GetStream(DefaultStreams.DBI);
dbi = new DBIReader(Services, dbiData);
OnDbiInit?.Invoke(dbi);
}
Services.AddService <DBIReader>(dbi);
}
TPIReader tpi;
// init TPI
{
SpanStream tpiStream;
if (Type != PDBType.Old)
{
byte[] tpiData = streamTable.GetStream(DefaultStreams.TPI);
tpiStream = new SpanStream(tpiData);
}
else
{
Span <byte> span = memSpan.GetSpan();
JGHeaderOld header = span.Read <JGHeaderOld>(0);
// $TODO: the MSFReader interface should be abstracted into a more generic PDBHeader
Services.AddService <JGHeaderOld>(header);
tpiStream = new SpanStream(span.Slice(header.SIZE).ToArray());
}
tpi = new TPIReader(Services, tpiStream);
OnTpiInit?.Invoke(tpi);
}
Services.AddService <TPIReader>(tpi);
TPIHashReader tpiHash = null;
// init TPIHash
if (Type != PDBType.Old && tpi.Header.Hash.StreamNumber != -1)
{
byte[] tpiHashData = streamTable.GetStream(tpi.Header.Hash.StreamNumber);
tpiHash = new TPIHashReader(Services, tpiHashData);
Services.AddService <TPIHashReader>(tpiHash);
}
// init resolver
TypeResolver resolver = new TypeResolver(Services);
Services.AddService <TypeResolver>(resolver);
// init Hasher
HasherV2 hasher = new HasherV2(Services);
Services.AddService <HasherV2>(hasher);
if (Type != PDBType.Old)
{
{ // init NameMap
byte[] nameMapData = streamTable.GetStream(DefaultStreams.PDB);
PdbStreamReader nameMap = new PdbStreamReader(nameMapData);
Services.AddService <PdbStreamReader>(nameMap);
}
NamedStreamTableReader namedStreamTable = new NamedStreamTableReader(Services);
Services.AddService <NamedStreamTableReader>(namedStreamTable);
{ // init UdtNameMap
byte[] namesData = namedStreamTable.GetStreamByName("/names");
if (namesData != null)
{
UdtNameTableReader udtNameTable = new UdtNameTableReader(Services, namesData);
Services.AddService <UdtNameTableReader>(udtNameTable);
}
}
}
}