internal PdbFunction(string module, ManProcSym proc, BitAccess bits)
{
this.token = proc.token;
this.module = module;
this.name = proc.name;
this.flags = proc.flags;
this.segment = proc.seg;
this.address = proc.off;
this.length = proc.len;
this.slotToken = 0;
if (proc.seg != 1)
{
throw new PdbDebugException("Segment is {0}, not 1.", proc.seg);
}
if (proc.parent != 0 || proc.next != 0)
{
throw new PdbDebugException("Warning parent={0}, next={1}",
proc.parent, proc.next);
}
if (proc.dbgStart != 0 || proc.dbgEnd != 0)
{
throw new PdbDebugException("Warning DBG start={0}, end={1}",
proc.dbgStart, proc.dbgEnd);
}
int scopeCount;
int slotCount;
CountScopesAndSlots(bits, proc.end, out scopeCount, out slotCount);
scopes = new PdbScope[scopeCount];
int scope = 0;
while (bits.Position < proc.end)
{
ushort siz;
ushort rec;
bits.ReadUInt16(out siz);
int star = bits.Position;
int stop = bits.Position + siz;
bits.Position = star;
bits.ReadUInt16(out rec);
switch ((SYM)rec)
{
case SYM.S_OEM: { // 0x0404
OemSymbol oem;
bits.ReadGuid(out oem.idOem);
bits.ReadUInt32(out oem.typind);
// public byte[] rgl; // user data, force 4-byte alignment
if (oem.idOem == msilMetaData)
{
metadata = new byte[stop - bits.Position];
bits.ReadBytes(metadata);
bits.Position = stop;
break;
}
else
{
throw new PdbDebugException("OEM section: guid={0} ti={1}",
oem.idOem, oem.typind);
// bits.Position = stop;
}
}
case SYM.S_BLOCK32: {
BlockSym32 block = new BlockSym32();
bits.ReadUInt32(out block.parent);
bits.ReadUInt32(out block.end);
bits.ReadUInt32(out block.len);
bits.ReadUInt32(out block.off);
bits.ReadUInt16(out block.seg);
bits.SkipCString(out block.name);
bits.Position = stop;
scopes[scope] = new PdbScope(block, bits, out slotToken);
bits.Position = (int)block.end;
break;
}
case SYM.S_UNAMESPACE:
bits.Position = stop;
break;
case SYM.S_END:
bits.Position = stop;
break;
default: {
throw new PdbDebugException("Unknown SYM: {0}", (SYM)rec);
// bits.Position = stop;
}
}
}
if (bits.Position != proc.end)
{
throw new PdbDebugException("Not at S_END");
}
ushort esiz;
ushort erec;
bits.ReadUInt16(out esiz);
bits.ReadUInt16(out erec);
if (erec != (ushort)SYM.S_END)
{
throw new PdbDebugException("Missing S_END");
}
}
internal PdbFileHeader(Stream reader, BitAccess bits)
{
bits.MinCapacity(56);
reader.Seek(0, SeekOrigin.Begin);
bits.FillBuffer(reader, 52);
this.magic = new byte[32];
bits.ReadBytes(this.magic); // 0..31
bits.ReadInt32(out this.pageSize); // 32..35
bits.ReadInt32(out this.freePageMap); // 36..39
bits.ReadInt32(out this.pagesUsed); // 40..43
bits.ReadInt32(out this.directorySize); // 44..47
bits.ReadInt32(out this.zero); // 48..51
int directoryPages = ((((directorySize + pageSize - 1) / pageSize) * 4) + pageSize - 1) / pageSize;
this.directoryRoot = new int[directoryPages];
bits.FillBuffer(reader, directoryPages * 4);
bits.ReadInt32(this.directoryRoot);
}
