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;
switch (type)
{
case SymbolType.S_BLOCK32:
{
stream.Position += 4;
childEnd = stream.ReadUInt32();
var len = stream.ReadUInt32();
var addr = PdbAddress.ReadAddress(stream);
var name = PdbReader.ReadCString(stream);
child = new DbiScope(name, addr.Offset, len);
break;
}
case SymbolType.S_UNAMESPACE:
Namespaces.Add(new DbiNamespace(PdbReader.ReadCString(stream)));
break;
case SymbolType.S_MANSLOT:
{
var variable = new DbiVariable();
variable.Read(stream);
Variables.Add(variable);
break;
}
}
stream.Position = end;
if (child != null)
{
child.Read(counter, stream, childEnd.Value);
Children.Add(child);
child = null;
}
}
counter.Decrement();
if (stream.Position != scopeEnd)
{
Debugger.Break();
}
}
public void Read(IImageStream stream, long recEnd)
{
stream.Position += 4;
var end = stream.ReadUInt32();
stream.Position += 4;
var len = stream.ReadUInt32();
stream.Position += 8;
Token = stream.ReadUInt32();
Address = PdbAddress.ReadAddress(stream);
stream.Position += 1 + 2;
Name = PdbReader.ReadCString(stream);
stream.Position = recEnd;
Root = new DbiScope("", Address.Offset, len);
Root.Read(new RecursionCounter(), stream, end);
FixOffsets(new RecursionCounter(), Root);
}
private void ReadLines(DbiFunction[] funcs, Dictionary <long, DbiDocument> documents, IImageStream stream, long end)
{
var address = PdbAddress.ReadAddress(stream);
int first = 0;
int last = funcs.Length - 1;
int found = -1;
while (first <= last)
{
var index = first + ((last - first) >> 1);
var addr = funcs[index].Address;
if (addr < address)
{
first = index + 1;
}
else if (addr > address)
{
last = index - 1;
}
else
{
found = index;
break;
}
}
if (found == -1)
{
return;
}
var flags = stream.ReadUInt16();
stream.Position += 4;
if (funcs[found].Lines == null)
{
while (found > 0)
{
var prevFunc = funcs[found - 1];
if (prevFunc != null || prevFunc.Address != address)
{
break;
}
found--;
}
}
else
{
while (found < funcs.Length - 1 && funcs[found] != null)
{
var nextFunc = funcs[found + 1];
if (nextFunc.Address != address)
{
break;
}
found++;
}
}
var func = funcs[found];
if (func.Lines != null)
{
return;
}
func.Lines = new List <DbiSourceLine>();
while (stream.Position < end)
{
var document = documents[stream.ReadUInt32()];
var count = stream.ReadUInt32();
stream.Position += 4;
const int LINE_ENTRY_SIZE = 8;
const int COL_ENTRY_SIZE = 4;
var lineTablePos = stream.Position;
var colTablePos = stream.Position + count * LINE_ENTRY_SIZE;
for (uint i = 0; i < count; i++)
{
stream.Position = lineTablePos + i * LINE_ENTRY_SIZE;
var line = new DbiSourceLine
{
Document = document
};
line.Offset = stream.ReadUInt32();
var lineFlags = stream.ReadUInt32();
line.LineBegin = lineFlags & 0x00ffffff;
line.LineEnd = line.LineBegin + ((lineFlags >> 24) & 0x7F);
if ((flags & 1) != 0)
{
stream.Position = colTablePos + i * COL_ENTRY_SIZE;
line.ColumnBegin = stream.ReadUInt16();
line.ColumnEnd = stream.ReadUInt16();
}
func.Lines.Add(line);
}
}
}