internal void Read(PdbReader reader, int position,
byte[] bytes, int offset, int data) {
if (position + data > contentSize) {
throw new PdbException("DataStream can't read off end of stream. " +
"(pos={0},siz={1})",
position, data);
}
if (position == contentSize) {
return;
}
int left = data;
int page = position / reader.pageSize;
int rema = position % reader.pageSize;
// First get remained of first page.
if (rema != 0) {
int todo = reader.pageSize - rema;
if (todo > left) {
todo = left;
}
reader.Seek(pages[page], rema);
reader.Read(bytes, offset, todo);
offset += todo;
left -= todo;
page++;
}
// Now get the remaining pages.
while (left > 0) {
int todo = reader.pageSize;
if (todo > left) {
todo = left;
}
reader.Seek(pages[page], 0);
reader.Read(bytes, offset, todo);
offset += todo;
left -= todo;
page++;
}
}
internal static PdbFunction[] LoadFunctions(Stream read, BitAccess bits, bool readAllStrings, out int age, out Guid guid) {
PdbFileHeader head = new PdbFileHeader(read, bits);
PdbReader reader = new PdbReader(read, head.pageSize);
MsfDirectory dir = new MsfDirectory(reader, head, bits);
DbiModuleInfo[] modules = null;
DbiDbgHdr header;
dir.streams[1].Read(reader, bits);
Dictionary<string, int> nameIndex = LoadNameIndex(bits, out age, out guid);
int nameStream;
if (!nameIndex.TryGetValue("/names", out nameStream)) {
throw new PdbException("No `name' stream");
}
dir.streams[nameStream].Read(reader, bits);
IntHashTable names = LoadNameStream(bits);
dir.streams[3].Read(reader, bits);
LoadDbiStream(bits, out modules, out header, readAllStrings);
var funcList = new List<PdbFunction>();
if (modules != null) {
for (int m = 0; m < modules.Length; m++) {
if (modules[m].stream > 0) {
dir.streams[modules[m].stream].Read(reader, bits);
LoadFuncsFromDbiModule(bits, modules[m], names, funcList,
readAllStrings, dir, nameIndex, reader);
}
}
}
PdbFunction[] funcs = funcList.ToArray();
// After reading the functions, apply the token remapping table if it exists.
if (header.snTokenRidMap != 0 && header.snTokenRidMap != 0xffff) {
dir.streams[header.snTokenRidMap].Read(reader, bits);
uint[] ridMap = new uint[dir.streams[header.snTokenRidMap].Length / 4];
bits.ReadUInt32(ridMap);
foreach (PdbFunction func in funcs) {
func.token = 0x06000000 | ridMap[func.token & 0xffffff];
}
}
//
Array.Sort(funcs, PdbFunction.byAddress);
//Array.Sort(funcs, PdbFunction.byToken);
return funcs;
}
static void LoadFuncsFromDbiModule(BitAccess bits,
DbiModuleInfo info,
IntHashTable names,
ICollection<PdbFunction> funcList,
bool readStrings,
MsfDirectory dir,
Dictionary<string, int> nameIndex,
PdbReader reader) {
PdbFunction[] funcs = null;
bits.Position = 0;
int sig;
bits.ReadInt32(out sig);
if (sig != 4) {
throw new PdbDebugException("Invalid signature. (sig={0})", sig);
}
bits.Position = 4;
// Console.WriteLine("{0}:", info.moduleName);
funcs = PdbFunction.LoadManagedFunctions(info.moduleName,
bits, (uint)info.cbSyms,
readStrings);
if (funcs != null) {
bits.Position = info.cbSyms + info.cbOldLines;
LoadManagedLines(funcs, names, bits, dir, nameIndex, reader,
(uint)(info.cbSyms + info.cbOldLines + info.cbLines));
for (int i = 0; i < funcs.Length; i++) {
funcList.Add(funcs[i]);
}
}
}
static void LoadManagedLines(PdbFunction[] funcs,
IntHashTable names,
BitAccess bits,
MsfDirectory dir,
Dictionary<string, int> nameIndex,
PdbReader reader,
uint limit) {
Array.Sort(funcs, PdbFunction.byAddress);
IntHashTable checks = new IntHashTable();
// Read the files first
int begin = bits.Position;
while (bits.Position < limit) {
int sig;
int siz;
bits.ReadInt32(out sig);
bits.ReadInt32(out siz);
int place = bits.Position;
int endSym = bits.Position + siz;
switch ((DEBUG_S_SUBSECTION)sig) {
case DEBUG_S_SUBSECTION.FILECHKSMS:
while (bits.Position < endSym) {
CV_FileCheckSum chk;
int ni = bits.Position - place;
bits.ReadUInt32(out chk.name);
bits.ReadUInt8(out chk.len);
bits.ReadUInt8(out chk.type);
string name = (string)names[(int)chk.name];
int guidStream;
Guid doctypeGuid = new Guid("5a869d0b-6611-11d3-bd2a-0000f80849bd");
Guid languageGuid = new Guid("3f5162f8-07c6-11d3-9053-00c04fa302a1");
Guid vendorGuid = new Guid("994b45c4-e6e9-11d2-903f-00c04fa302a1");
if (nameIndex.TryGetValue("/src/files/"+name, out guidStream)) {
var guidBits = new BitAccess(0x100);
dir.streams[guidStream].Read(reader, guidBits);
LoadGuidStream(guidBits, out doctypeGuid, out languageGuid, out vendorGuid);
}
PdbSource src = new PdbSource((uint)ni, name, doctypeGuid, languageGuid, vendorGuid);
checks.Add(ni, src);
bits.Position += chk.len;
bits.Align(4);
}
bits.Position = endSym;
break;
default:
bits.Position = endSym;
break;
}
}
// Read the lines next.
bits.Position = begin;
while (bits.Position < limit) {
int sig;
int siz;
bits.ReadInt32(out sig);
bits.ReadInt32(out siz);
int endSym = bits.Position + siz;
switch ((DEBUG_S_SUBSECTION)sig) {
case DEBUG_S_SUBSECTION.LINES: {
CV_LineSection sec;
bits.ReadUInt32(out sec.off);
bits.ReadUInt16(out sec.sec);
bits.ReadUInt16(out sec.flags);
bits.ReadUInt32(out sec.cod);
PdbFunction func = FindFunction(funcs, sec.sec, sec.off);
if (func == null) break;
// Count the line blocks.
int begSym = bits.Position;
int blocks = 0;
while (bits.Position < endSym) {
CV_SourceFile file;
bits.ReadUInt32(out file.index);
bits.ReadUInt32(out file.count);
bits.ReadUInt32(out file.linsiz); // Size of payload.
int linsiz = (int)file.count * (8 + ((sec.flags & 1) != 0 ? 4 : 0));
bits.Position += linsiz;
blocks++;
}
func.lines = new PdbLines[blocks];
int block = 0;
bits.Position = begSym;
while (bits.Position < endSym) {
CV_SourceFile file;
bits.ReadUInt32(out file.index);
bits.ReadUInt32(out file.count);
bits.ReadUInt32(out file.linsiz); // Size of payload.
PdbSource src = (PdbSource)checks[(int)file.index];
PdbLines tmp = new PdbLines(src, file.count);
func.lines[block++] = tmp;
PdbLine[] lines = tmp.lines;
int plin = bits.Position;
int pcol = bits.Position + 8 * (int)file.count;
for (int i = 0; i < file.count; i++) {
CV_Line line;
CV_Column column = new CV_Column();
bits.Position = plin + 8 * i;
bits.ReadUInt32(out line.offset);
bits.ReadUInt32(out line.flags);
uint lineBegin = line.flags & (uint)CV_Line_Flags.linenumStart;
uint delta = (line.flags & (uint)CV_Line_Flags.deltaLineEnd) >> 24;
bool statement = ((line.flags & (uint)CV_Line_Flags.fStatement) == 0);
if ((sec.flags & 1) != 0) {
bits.Position = pcol + 4 * i;
bits.ReadUInt16(out column.offColumnStart);
bits.ReadUInt16(out column.offColumnEnd);
}
lines[i] = new PdbLine(line.offset,
lineBegin,
column.offColumnStart,
lineBegin+delta,
column.offColumnEnd);
}
}
break;
}
}
bits.Position = endSym;
}
}
internal void Read(PdbReader reader, BitAccess bits)
{
bits.MinCapacity(contentSize);
Read(reader, 0, bits.Buffer, 0, contentSize);
}
internal void Read(PdbReader reader, BitAccess bits) {
bits.MinCapacity(contentSize);
Read(reader, 0, bits.Buffer, 0, contentSize);
}
