internal void Read(PdbStreamHelper 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 void Read(PdbStreamHelper 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 MsfDirectory(PdbStreamHelper reader, PdbFileHeader head, BitAccess bits)
{
int pages = reader.PagesFromSize(head.DirectorySize);
// 0..n in page of directory pages.
bits.MinCapacity(head.DirectorySize);
int directoryRootPages = head.DirectoryRoot.Length;
int pagesPerPage = head.PageSize / 4;
int pagesToGo = pages;
for (int i = 0; i < directoryRootPages; i++)
{
int pagesInThisPage = pagesToGo <= pagesPerPage ? pagesToGo : pagesPerPage;
reader.Seek(head.DirectoryRoot[i], 0);
bits.Append(reader.Reader, pagesInThisPage * 4);
pagesToGo -= pagesInThisPage;
}
bits.Position = 0;
DataStream stream = new DataStream(head.DirectorySize, bits, pages);
bits.MinCapacity(head.DirectorySize);
stream.Read(reader, bits);
// 0..3 in directory pages
int count;
bits.ReadInt32(out count);
// 4..n
int[] sizes = new int[count];
bits.ReadInt32(sizes);
// n..m
_streams = new DataStream[count];
for (int i = 0; i < count; i++)
{
if (sizes[i] <= 0)
{
_streams[i] = new DataStream();
}
else
{
_streams[i] = new DataStream(sizes[i], bits,
reader.PagesFromSize(sizes[i]));
}
}
}
private static void LoadFuncsFromDbiModule(
BitAccess bits,
DbiModuleInfo info,
Dictionary <int, string> names,
List <PdbFunction> funcList,
bool readStrings,
MsfDirectory dir,
Dictionary <string, int> nameIndex,
PdbStreamHelper reader,
Dictionary <string, PdbSource> sources)
{
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),
sources);
for (int i = 0; i < funcs.Length; i++)
{
funcList.Add(funcs[i]);
}
}
}
internal MsfDirectory(PdbStreamHelper reader, PdbFileHeader head, BitAccess bits)
{
int pages = reader.PagesFromSize(head.DirectorySize);
// 0..n in page of directory pages.
bits.MinCapacity(head.DirectorySize);
int directoryRootPages = head.DirectoryRoot.Length;
int pagesPerPage = head.PageSize / 4;
int pagesToGo = pages;
for (int i = 0; i < directoryRootPages; i++)
{
int pagesInThisPage = pagesToGo <= pagesPerPage ? pagesToGo : pagesPerPage;
reader.Seek(head.DirectoryRoot[i], 0);
bits.Append(reader.Reader, pagesInThisPage * 4);
pagesToGo -= pagesInThisPage;
}
bits.Position = 0;
DataStream stream = new DataStream(head.DirectorySize, bits, pages);
bits.MinCapacity(head.DirectorySize);
stream.Read(reader, bits);
// 0..3 in directory pages
int count;
bits.ReadInt32(out count);
// 4..n
int[] sizes = new int[count];
bits.ReadInt32(sizes);
// n..m
_streams = new DataStream[count];
for (int i = 0; i < count; i++)
{
if (sizes[i] <= 0)
{
_streams[i] = new DataStream();
}
else
{
_streams[i] = new DataStream(sizes[i], bits,
reader.PagesFromSize(sizes[i]));
}
}
}
/// <summary>
/// Gets the properties of a given pdb. Throws IOException on error.
/// </summary>
/// <param name="pdbFile">The pdb file to load.</param>
/// <param name="signature">The signature of pdbFile.</param>
/// <param name="age">The age of pdbFile.</param>
public static void GetPdbProperties(string pdbFile, out Guid signature, out int age)
{
BitAccess bits = new BitAccess(512 * 1024);
using (FileStream pdbStream = File.OpenRead(pdbFile))
{
PdbFileHeader header = new PdbFileHeader(pdbStream, bits);
PdbStreamHelper reader = new PdbStreamHelper(pdbStream, header.PageSize);
MsfDirectory dir = new MsfDirectory(reader, header, bits);
dir._streams[1].Read(reader, bits);
int ver, sig;
bits.ReadInt32(out ver); // 0..3 Version
bits.ReadInt32(out sig); // 4..7 Signature
bits.ReadInt32(out age); // 8..11 Age
bits.ReadGuid(out signature); // 12..27 GUID
}
}
/// <summary>
/// Gets the properties of a given pdb. Throws IOException on error.
/// </summary>
/// <param name="pdbFile">The pdb file to load.</param>
/// <param name="signature">The signature of pdbFile.</param>
/// <param name="age">The age of pdbFile.</param>
public static void GetPdbProperties(string pdbFile, out Guid signature, out int age)
{
BitAccess bits = new BitAccess(512 * 1024);
using (FileStream pdbStream = File.OpenRead(pdbFile))
{
PdbFileHeader header = new PdbFileHeader(pdbStream, bits);
PdbStreamHelper reader = new PdbStreamHelper(pdbStream, header.PageSize);
MsfDirectory dir = new MsfDirectory(reader, header, bits);
dir._streams[1].Read(reader, bits);
int ver, sig;
bits.ReadInt32(out ver); // 0..3 Version
bits.ReadInt32(out sig); // 4..7 Signature
bits.ReadInt32(out age); // 8..11 Age
bits.ReadGuid(out signature); // 12..27 GUID
}
}
internal static PdbFunction[] LoadFunctions(
Stream read,
BitAccess bits,
bool readAllStrings,
out int ver,
out int sig,
out int age,
out Guid guid,
out IEnumerable <PdbSource> sources)
{
sources = null;
PdbFileHeader head = new PdbFileHeader(read, bits);
PdbStreamHelper reader = new PdbStreamHelper(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 ver, out sig, out age, out guid);
int nameStream;
if (!nameIndex.TryGetValue("/NAMES", out nameStream))
{
throw new PdbException("No `name' stream");
}
dir._streams[nameStream].Read(reader, bits);
Dictionary <int, string> names = LoadNameStream(bits);
dir._streams[3].Read(reader, bits);
LoadDbiStream(bits, out modules, out header, readAllStrings);
List <PdbFunction> funcList = new List <PdbFunction>();
Dictionary <string, PdbSource> sourceDictionary = new Dictionary <string, PdbSource>();
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,
sourceDictionary);
}
}
}
PdbFunction[] funcs = funcList.ToArray();
sources = sourceDictionary.Values;
// 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.byAddressAndToken);
//Array.Sort(funcs, PdbFunction.byToken);
return(funcs);
}
private static void LoadManagedLines(
PdbFunction[] funcs,
Dictionary <int, string> names,
BitAccess bits,
MsfDirectory dir,
Dictionary <string, int> nameIndex,
PdbStreamHelper reader,
uint limit,
Dictionary <string, PdbSource> sources)
{
Array.Sort(funcs, PdbFunction.byAddressAndToken);
Dictionary <int, PdbSource> checks = new Dictionary <int, PdbSource>();
// 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 = names[(int)chk.name];
PdbSource src;
if (!sources.TryGetValue(name.ToUpperInvariant(), out src))
{
int guidStream;
Guid doctypeGuid = Guid.Empty;
Guid languageGuid = Guid.Empty;
Guid vendorGuid = Guid.Empty;
Guid algorithmId = Guid.Empty;
byte[] checksum = null;
byte[] source = null;
if (nameIndex.TryGetValue("/SRC/FILES/" + name.ToUpperInvariant(), out guidStream))
{
BitAccess guidBits = new BitAccess(0x100);
dir._streams[guidStream].Read(reader, guidBits);
LoadGuidStream(guidBits, out doctypeGuid, out languageGuid, out vendorGuid, out algorithmId, out checksum, out source);
}
src = new PdbSource(/*(uint)ni,*/ name, doctypeGuid, languageGuid, vendorGuid, algorithmId, checksum, source);
sources.Add(name.ToUpperInvariant(), src);
}
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);
int funcIndex = FindFunction(funcs, sec.sec, sec.off);
if (funcIndex < 0)
{
break;
}
PdbFunction func = funcs[funcIndex];
if (func.SequencePoints == null)
{
while (funcIndex > 0)
{
PdbFunction f = funcs[funcIndex - 1];
if (f.SequencePoints != null || f.Segment != sec.sec || f.Address != sec.off)
{
break;
}
func = f;
funcIndex--;
}
}
else
{
while (funcIndex < funcs.Length - 1 && func.SequencePoints != null)
{
PdbFunction f = funcs[funcIndex + 1];
if (f.Segment != sec.sec || f.Address != sec.off)
{
break;
}
func = f;
funcIndex++;
}
}
if (func.SequencePoints != 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.SequencePoints = new PdbSequencePointCollection[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 = checks[(int)file.index];
PdbSequencePointCollection tmp = new PdbSequencePointCollection(src, file.count);
func.SequencePoints[block++] = tmp;
PdbSequencePoint[] 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 PdbSequencePoint(
line.offset,
lineBegin,
column.offColumnStart,
lineBegin + delta,
column.offColumnEnd);
}
}
break;
}
}
bits.Position = endSym;
}
}
internal static PdbFunction[] LoadFunctions(Stream read,
BitAccess bits,
bool readAllStrings,
out int ver,
out int sig,
out int age,
out Guid guid,
out IEnumerable<PdbSource> sources)
{
sources = null;
PdbFileHeader head = new PdbFileHeader(read, bits);
PdbStreamHelper reader = new PdbStreamHelper(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 ver, out sig, out age, out guid);
int nameStream;
if (!nameIndex.TryGetValue("/NAMES", out nameStream))
{
throw new PdbException("No `name' stream");
}
dir._streams[nameStream].Read(reader, bits);
Dictionary<int, string> names = LoadNameStream(bits);
dir._streams[3].Read(reader, bits);
LoadDbiStream(bits, out modules, out header, readAllStrings);
List<PdbFunction> funcList = new List<PdbFunction>();
Dictionary<string, PdbSource> sourceDictionary = new Dictionary<string, PdbSource>();
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, sourceDictionary);
}
}
}
PdbFunction[] funcs = funcList.ToArray();
sources = sourceDictionary.Values;
// 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.byAddressAndToken);
//Array.Sort(funcs, PdbFunction.byToken);
return funcs;
}
private static void LoadFuncsFromDbiModule(BitAccess bits,
DbiModuleInfo info,
Dictionary<int, string> names,
List<PdbFunction> funcList,
bool readStrings,
MsfDirectory dir,
Dictionary<string, int> nameIndex,
PdbStreamHelper reader,
Dictionary<string, PdbSource> sources)
{
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), sources);
for (int i = 0; i < funcs.Length; i++)
{
funcList.Add(funcs[i]);
}
}
}
private static void LoadManagedLines(PdbFunction[] funcs,
Dictionary<int, string> names,
BitAccess bits,
MsfDirectory dir,
Dictionary<string, int> nameIndex,
PdbStreamHelper reader,
uint limit,
Dictionary<string, PdbSource> sources)
{
Array.Sort(funcs, PdbFunction.byAddressAndToken);
Dictionary<int, PdbSource> checks = new Dictionary<int, PdbSource>();
// 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 = names[(int)chk.name];
PdbSource src;
if (!sources.TryGetValue(name.ToUpperInvariant(), out src))
{
int guidStream;
Guid doctypeGuid = Guid.Empty;
Guid languageGuid = Guid.Empty;
Guid vendorGuid = Guid.Empty;
Guid algorithmId = Guid.Empty;
byte[] checksum = null;
byte[] source = null;
if (nameIndex.TryGetValue("/SRC/FILES/" + name.ToUpperInvariant(), out guidStream))
{
var guidBits = new BitAccess(0x100);
dir._streams[guidStream].Read(reader, guidBits);
LoadGuidStream(guidBits, out doctypeGuid, out languageGuid, out vendorGuid, out algorithmId, out checksum, out source);
}
src = new PdbSource(/*(uint)ni,*/ name, doctypeGuid, languageGuid, vendorGuid, algorithmId, checksum, source);
sources.Add(name.ToUpperInvariant(), src);
}
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);
int funcIndex = FindFunction(funcs, sec.sec, sec.off);
if (funcIndex < 0) break;
var func = funcs[funcIndex];
if (func.SequencePoints == null)
{
while (funcIndex > 0)
{
var f = funcs[funcIndex - 1];
if (f.SequencePoints != null || f.Segment != sec.sec || f.Address != sec.off) break;
func = f;
funcIndex--;
}
}
else
{
while (funcIndex < funcs.Length - 1 && func.SequencePoints != null)
{
var f = funcs[funcIndex + 1];
if (f.Segment != sec.sec || f.Address != sec.off) break;
func = f;
funcIndex++;
}
}
if (func.SequencePoints != 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.SequencePoints = new PdbSequencePointCollection[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];
PdbSequencePointCollection tmp = new PdbSequencePointCollection(src, file.count);
func.SequencePoints[block++] = tmp;
PdbSequencePoint[] 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 PdbSequencePoint(line.offset,
lineBegin,
column.offColumnStart,
lineBegin + delta,
column.offColumnEnd);
}
}
break;
}
}
bits.Position = endSym;
}
}
internal void Read(PdbStreamHelper reader, BitAccess bits)
{
bits.MinCapacity(_contentSize);
Read(reader, 0, bits.Buffer, 0, _contentSize);
}
internal void Read(PdbStreamHelper reader, BitAccess bits)
{
bits.MinCapacity(_contentSize);
Read(reader, 0, bits.Buffer, 0, _contentSize);
}