void ReadLines(PdbReader reader, IImageStream stream) {
var docs = new Dictionary<long, DbiDocument>();
stream.Position = 0;
while (stream.Position < stream.Length) {
var sig = (ModuleStreamType)stream.ReadUInt32();
var size = stream.ReadUInt32();
var begin = stream.Position;
var end = (begin + size + 3) & ~3;
if (sig == ModuleStreamType.FileInfo)
ReadFiles(reader, docs, stream, end);
stream.Position = end;
}
var sortedFuncs = new DbiFunction[Functions.Count];
Functions.CopyTo(sortedFuncs, 0);
Array.Sort(sortedFuncs, (a, b) => a.Address.CompareTo(b.Address));
stream.Position = 0;
while (stream.Position < stream.Length) {
var sig = (ModuleStreamType)stream.ReadUInt32();
var size = stream.ReadUInt32();
var begin = stream.Position;
var end = begin + size;
if (sig == ModuleStreamType.Lines)
ReadLines(sortedFuncs, docs, stream, end);
stream.Position = end;
}
}
public void LoadFunctions(PdbReader reader, IImageStream stream) {
stream.Position = 0;
using (var substream = stream.Create(stream.FileOffset + stream.Position, cbSyms))
ReadFunctions(substream);
if (Functions.Count > 0) {
stream.Position += cbSyms + cbOldLines;
using (var substream = stream.Create(stream.FileOffset + stream.Position, cbLines))
ReadLines(reader, substream);
}
}
/// <summary>
/// Creates a new <see cref="ISymbolReader"/> instance
/// </summary>
/// <param name="pdbStream">PDB file stream which is now owned by this method</param>
/// <returns>A new <see cref="ISymbolReader"/> instance or <c>null</c>.</returns>
public static ISymbolReader Create(IImageStream pdbStream) {
if (pdbStream == null)
return null;
try {
var pdbReader = new PdbReader();
pdbReader.Read(pdbStream);
return pdbReader;
}
catch (IOException) {
}
catch (UnauthorizedAccessException) {
}
catch (SecurityException) {
}
finally {
if (pdbStream != null)
pdbStream.Dispose();
}
return null;
}
public void Read(RecursionCounter counter, IImageStream stream, uint scopeEnd)
{
if (!counter.Increment())
{
throw new PdbException("Scopes too deep");
}
while (stream.Position < scopeEnd)
{
var size = stream.ReadUInt16();
var begin = stream.Position;
var end = begin + size;
var type = (SymbolType)stream.ReadUInt16();
DbiScope child = null;
uint? childEnd = null;
string name;
switch (type)
{
case SymbolType.S_BLOCK32: {
stream.Position += 4;
childEnd = stream.ReadUInt32();
var len = stream.ReadUInt32();
var addr = PdbAddress.ReadAddress(stream);
name = PdbReader.ReadCString(stream);
child = new DbiScope(method, this, name, addr.Offset, len);
break;
}
case SymbolType.S_UNAMESPACE:
namespacesList.Add(new DbiNamespace(PdbReader.ReadCString(stream)));
break;
case SymbolType.S_MANSLOT: {
var variable = new DbiVariable();
variable.Read(stream);
localsList.Add(variable);
break;
}
case SymbolType.S_OEM:
if (stream.Position + 20 > end)
{
break;
}
if (!ReadAndCompareBytes(stream, end, dotNetOemGuid))
{
Debug.Fail("Unknown OEM record GUID, not .NET GUID");
break;
}
stream.Position += 4; // typeIndex or 0
name = ReadUnicodeString(stream, end);
Debug.Assert(name != null);
if (name == null)
{
break;
}
var data = stream.ReadBytes((int)(end - stream.Position));
if (oemInfos == null)
{
oemInfos = new List <OemInfo>(1);
}
oemInfos.Add(new OemInfo(name, data));
break;
case SymbolType.S_MANCONSTANT:
uint signatureToken = stream.ReadUInt32();
object value;
if (!NumericReader.TryReadNumeric(stream, end, out value))
{
break;
}
name = PdbReader.ReadCString(stream);
if (constants == null)
{
constants = new List <ConstantInfo>();
}
constants.Add(new ConstantInfo(name, signatureToken, value));
break;
case SymbolType.S_END:
break;
default:
break;
}
stream.Position = end;
if (child != null)
{
child.Read(counter, stream, childEnd.Value);
childrenList.Add(child);
child = null;
}
}
counter.Decrement();
if (stream.Position != scopeEnd)
{
Debugger.Break();
}
}
void ReadFiles(PdbReader reader, Dictionary<long, DbiDocument> documents, IImageStream stream, long end)
{
var begin = stream.Position;
while (stream.Position < end) {
var id = stream.Position - begin;
var nameId = stream.ReadUInt32();
var len = stream.ReadByte();
/*var type = */stream.ReadByte();
var doc = reader.GetDocument(nameId);
documents.Add(id, doc);
stream.Position += len;
stream.Position = (stream.Position + 3) & (~3);
}
}
