/// <summary>
/// </summary>
/// <param name="bits">
/// </param>
/// <returns>
/// </returns>
/// <exception cref="PdbDebugException">
/// </exception>
private static IntHashTable LoadNameStream(BitAccess bits)
{
var ht = new IntHashTable();
uint sig;
int ver;
bits.ReadUInt32(out sig); // 0..3 Signature
bits.ReadInt32(out ver); // 4..7 Version
// Read (or skip) string buffer.
int buf;
bits.ReadInt32(out buf); // 8..11 Bytes of Strings
if (sig != 0xeffeeffe || ver != 1)
{
throw new PdbDebugException("Unsupported Name Stream version. " + "(sig={0:x8}, ver={1})", sig, ver);
}
var beg = bits.Position;
var nxt = bits.Position + buf;
bits.Position = nxt;
// Read hash table.
int siz;
bits.ReadInt32(out siz); // n+0..3 Number of hash buckets.
nxt = bits.Position;
for (var i = 0; i < siz; i++)
{
int ni;
string name;
bits.ReadInt32(out ni);
if (ni != 0)
{
var saved = bits.Position;
bits.Position = beg + ni;
bits.ReadCString(out name);
bits.Position = saved;
ht.Add(ni, name);
}
}
bits.Position = nxt;
return ht;
}
/// <summary>
/// </summary>
/// <param name="module">
/// </param>
/// <param name="bits">
/// </param>
/// <param name="limit">
/// </param>
/// <param name="readStrings">
/// </param>
/// <returns>
/// </returns>
internal static PdbFunction[] LoadManagedFunctions(string module, BitAccess bits, uint limit, bool readStrings)
{
var mod = StripNamespace(module);
var begin = bits.Position;
var count = 0;
while (bits.Position < limit)
{
ushort siz;
ushort rec;
bits.ReadUInt16(out siz);
var star = bits.Position;
var stop = bits.Position + siz;
bits.Position = star;
bits.ReadUInt16(out rec);
switch ((SYM)rec)
{
case SYM.S_GMANPROC:
case SYM.S_LMANPROC:
ManProcSym proc;
bits.ReadUInt32(out proc.parent);
bits.ReadUInt32(out proc.end);
bits.Position = (int)proc.end;
count++;
break;
case SYM.S_END:
bits.Position = stop;
break;
default:
// Console.WriteLine("{0,6}: {1:x2} {2}",
// bits.Position, rec, (SYM)rec);
bits.Position = stop;
break;
}
}
if (count == 0)
{
return null;
}
bits.Position = begin;
var funcs = new PdbFunction[count];
var func = 0;
while (bits.Position < limit)
{
ushort siz;
ushort rec;
bits.ReadUInt16(out siz);
var star = bits.Position;
var stop = bits.Position + siz;
bits.ReadUInt16(out rec);
switch ((SYM)rec)
{
case SYM.S_GMANPROC:
case SYM.S_LMANPROC:
ManProcSym proc;
var offset = bits.Position;
bits.ReadUInt32(out proc.parent);
bits.ReadUInt32(out proc.end);
bits.ReadUInt32(out proc.next);
bits.ReadUInt32(out proc.len);
bits.ReadUInt32(out proc.dbgStart);
bits.ReadUInt32(out proc.dbgEnd);
bits.ReadUInt32(out proc.token);
bits.ReadUInt32(out proc.off);
bits.ReadUInt16(out proc.seg);
bits.ReadUInt8(out proc.flags);
bits.ReadUInt16(out proc.retReg);
if (readStrings)
{
bits.ReadCString(out proc.name);
}
else
{
bits.SkipCString(out proc.name);
}
// Console.WriteLine("token={0:X8} [{1}::{2}]", proc.token, module, proc.name);
bits.Position = stop;
funcs[func++] = new PdbFunction(module, proc, bits);
break;
default:
{
// throw new PdbDebugException("Unknown SYMREC {0}", (SYM)rec);
bits.Position = stop;
break;
}
}
}
return funcs;
}
/// <summary>
/// </summary>
/// <param name="bits">
/// </param>
/// <returns>
/// </returns>
/// <exception cref="PdbDebugException">
/// </exception>
private static Dictionary<string, int> LoadNameIndex(BitAccess bits)
{
var result = new Dictionary<string, int>();
int ver;
int sig;
int age;
Guid guid;
bits.ReadInt32(out ver); // 0..3 Version
bits.ReadInt32(out sig); // 4..7 Signature
bits.ReadInt32(out age); // 8..11 Age
bits.ReadGuid(out guid); // 12..27 GUID
if (ver != 20000404)
{
throw new PdbDebugException("Unsupported PDB Stream version {0}", ver);
}
// Read string buffer.
int buf;
bits.ReadInt32(out buf); // 28..31 Bytes of Strings
var beg = bits.Position;
var nxt = bits.Position + buf;
bits.Position = nxt;
// Read map index.
int cnt; // n+0..3 hash size.
int max; // n+4..7 maximum ni.
bits.ReadInt32(out cnt);
bits.ReadInt32(out max);
var present = new BitSet(bits);
var deleted = new BitSet(bits);
if (!deleted.IsEmpty)
{
throw new PdbDebugException("Unsupported PDB deleted bitset is not empty.");
}
var j = 0;
for (var i = 0; i < max; i++)
{
if (present.IsSet(i))
{
int ns;
int ni;
bits.ReadInt32(out ns);
bits.ReadInt32(out ni);
string name;
var saved = bits.Position;
bits.Position = beg + ns;
bits.ReadCString(out name);
bits.Position = saved;
result.Add(name, ni);
j++;
}
}
if (j != cnt)
{
throw new PdbDebugException("Count mismatch. ({0} != {1})", j, cnt);
}
return result;
}
/// <summary>
/// </summary>
/// <param name="block">
/// </param>
/// <param name="bits">
/// </param>
/// <param name="typind">
/// </param>
/// <exception cref="PdbException">
/// </exception>
/// <exception cref="Exception">
/// </exception>
internal PdbScope(BlockSym32 block, BitAccess bits, out uint typind)
{
this.segment = block.seg;
this.address = block.off;
this.length = block.len;
typind = 0;
int constantCount;
int scopeCount;
int slotCount;
int namespaceCount;
PdbFunction.CountScopesAndSlots(bits, block.end, out constantCount, out scopeCount, out slotCount, out namespaceCount);
this.constants = new PdbConstant[constantCount];
this.scopes = new PdbScope[scopeCount];
this.slots = new PdbSlot[slotCount];
this.usedNamespaces = new string[namespaceCount];
var constant = 0;
var scope = 0;
var slot = 0;
var usedNs = 0;
while (bits.Position < block.end)
{
ushort siz;
ushort rec;
bits.ReadUInt16(out siz);
var star = bits.Position;
var stop = bits.Position + siz;
bits.Position = star;
bits.ReadUInt16(out rec);
switch ((SYM)rec)
{
case SYM.S_BLOCK32:
{
var sub = new BlockSym32();
bits.ReadUInt32(out sub.parent);
bits.ReadUInt32(out sub.end);
bits.ReadUInt32(out sub.len);
bits.ReadUInt32(out sub.off);
bits.ReadUInt16(out sub.seg);
bits.SkipCString(out sub.name);
bits.Position = stop;
this.scopes[scope++] = new PdbScope(sub, bits, out typind);
break;
}
case SYM.S_MANSLOT:
this.slots[slot++] = new PdbSlot(bits, out typind);
bits.Position = stop;
break;
case SYM.S_UNAMESPACE:
bits.ReadCString(out this.usedNamespaces[usedNs++]);
bits.Position = stop;
break;
case SYM.S_END:
bits.Position = stop;
break;
case SYM.S_MANCONSTANT:
this.constants[constant++] = new PdbConstant(bits);
bits.Position = stop;
break;
default:
throw new PdbException("Unknown SYM in scope {0}", (SYM)rec);
// bits.Position = stop;
}
}
if (bits.Position != block.end)
{
throw new Exception("Not at S_END");
}
ushort esiz;
ushort erec;
bits.ReadUInt16(out esiz);
bits.ReadUInt16(out erec);
if (erec != (ushort)SYM.S_END)
{
throw new Exception("Missing S_END");
}
}