private static void LoadFunctionsFromDBIModule(
StreamInfo stream,
Int32 pageSize,
Int32[][] streamPages,
Int32[] streamSizes,
Byte[] array,
IDictionary <String, Int32> streamNameIndices,
IDictionary <Int32, String> nameIndex,
DBIModuleInfo moduleInfo,
PDBInstance instance
)
{
var idx = INT_SIZE; // Skip signature
var thisFuncs = new List <PDBFunctionInfo>();
var module = instance.GetOrAddModule(moduleInfo.moduleName);
while (idx < moduleInfo.symbolByteCount)
{
var blockLen = array.ReadUInt16LEFromBytes(ref idx);
var blockEndIdx = idx + blockLen;
#if DEBUG
if (blockEndIdx % 4 != 0)
{
throw new PDBException("Debyyg");
}
#endif
switch (array.ReadUInt16LEFromBytes(ref idx))
{
case SYM_GLOBAL_MANAGED_FUNC:
case SYM_LOCAL_MANAGED_FUNC:
Int32 addr; UInt16 seg;
var func = NewPDBFunction(moduleInfo.moduleName, array, ref idx, blockEndIdx, out addr, out seg);
module.Functions.Add(func);
thisFuncs.Add(new PDBFunctionInfo(func, addr, seg, -1)); // Function pointer is not used during reading
break;
default:
#if DEBUG
throw new PDBException("Debyyg");
#else
idx = blockEndIdx;
break;
#endif
}
}
if (thisFuncs.Count > 0)
{
// Seek to line information
idx = moduleInfo.symbolByteCount + moduleInfo.oldLinesByteCount;
// Sort the functions based on their address and token in order for fast lookup
thisFuncs.Sort(PDB_FUNC_ADDRESS_AND_TOKEN_BASED);
// Load PDBSources and PDBLines and modify PDBFunction's lineInfo to contain the information about sources and lines.
LoadSourcesAndLinesFromModuleStream(stream, pageSize, streamPages, streamSizes, array, idx, idx + moduleInfo.linesByteCount, streamNameIndices, nameIndex, instance, thisFuncs);
}
}
public static PDBInstance FromStream(Stream readingStream, Boolean ignoreCaseSourceFileStreamNames = true)
{
var stream = new StreamInfo(readingStream);
// Header
// Skip first 32 bytes (it's just text and magic ints)
stream.stream.SeekFromCurrent(32);
var array = new Byte[20];
stream.stream.ReadWholeArray(array);
var idx = 0;
var pageSize = array.ReadInt32LEFromBytes(ref idx);
if (pageSize <= 0)
{
// Maybe instead just return empty PDBInstance ?
throw new PDBException("Page size must be greater than zero, was: " + pageSize + ".");
}
array.Skip(ref idx, 8); // Skip free page map size and page count
var directoryByteCount = array.ReadInt32LEFromBytes(ref idx);
// Ignore last 4 bytes
// Read directory page offsets
var directoryPageCount = AmountOfPagesTaken(directoryByteCount, pageSize);
var directoryPageOffsetPageCount = AmountOfPagesTaken(
INT_SIZE * directoryPageCount,
pageSize);
array = stream.stream.ReadWholeArray(INT_SIZE * directoryPageOffsetPageCount);
idx = 0;
var directoryPageOffsets = array.ReadInt32ArrayLEFromBytes(ref idx, directoryPageOffsetPageCount);
// Directory
// Read directory pages
array = stream.ReadPagedData(pageSize, directoryPageOffsets, directoryPageCount * INT_SIZE);
idx = 0;
directoryPageOffsets = array.ReadInt32ArrayLEFromBytes(ref idx, directoryPageCount);
// Read directory data
array = stream.ReadPagedData(pageSize, directoryPageOffsets, directoryByteCount);
idx = 0;
var dataStreamCount = array.ReadInt32LEFromBytes(ref idx);
var dataStreamSizes = array.ReadInt32ArrayLEFromBytes(ref idx, dataStreamCount);
var dataStreamPages = new Int32[dataStreamCount][];
for (var i = 0; i < dataStreamCount; ++i)
{
var dSize = dataStreamSizes[i];
if (dSize > 0)
{
dataStreamPages[i] = array.ReadInt32ArrayLEFromBytes(ref idx, AmountOfPagesTaken(dSize, pageSize));
}
}
// Read DBI data
array = stream.ReadPagedData(pageSize, dataStreamPages[3], dataStreamSizes[3]);
idx = 0;
DBIHeader dbiHeader; DBIModuleInfo[] modules; DBIDebugHeader debugHeader;
LoadDBIStream(array, ref idx, out dbiHeader, out modules, out debugHeader);
// Make array have the size of biggest stream size to be used, so we wouldn't need to create new array each time for stream
// TODO this might still be too much in some gigantic function cases...
array = new Byte[dataStreamSizes.Where((siz, i) => i != 3 && i != dbiHeader.symRecStream && i != dbiHeader.psSymStream && i != dbiHeader.gsSymStream).Max()];
// Create result instance
var instance = new PDBInstance();
// Read root stream
stream.ReadPagedData(pageSize, dataStreamPages[1], dataStreamSizes[1], array);
idx = 8; // Skip version & timestamp
instance.Age = array.ReadUInt32LEFromBytes(ref idx);
instance.DebugGUID = array.ReadGUIDFromBytes(ref idx);
var streamNameIndices = LoadStreamIndices(array, ref idx, ignoreCaseSourceFileStreamNames);
Int32 namesStreamIdx;
if (!streamNameIndices.TryGetValue(NAMES_STREAM_NAME, out namesStreamIdx))
{
throw new PDBException("The \"" + NAMES_STREAM_NAME + "\" stream is missing.");
}
else if (namesStreamIdx >= dataStreamCount)
{
throw new PDBException("The \"" + NAMES_STREAM_NAME + "\" stream was referencing to non-existant stream.");
}
// Read symbol server data, if any
Int32 srcStrmIdx;
if (streamNameIndices.TryGetValue(SOURCE_SERVER_STREAM_NAME, out srcStrmIdx) && srcStrmIdx < dataStreamCount)
{
stream.ReadPagedData(pageSize, dataStreamPages[srcStrmIdx], dataStreamSizes[srcStrmIdx], array);
idx = 0;
instance.SourceServer = array.ReadStringWithEncoding(ref idx, dataStreamSizes[srcStrmIdx], NAME_ENCODING);
}
// Read name index.
stream.ReadPagedData(pageSize, dataStreamPages[namesStreamIdx], dataStreamSizes[namesStreamIdx], array);
idx = 0;
/*var nsSig = */
array.ReadUInt32LEFromBytes(ref idx);
/*var nsVer = */
array.ReadInt32LEFromBytes(ref idx);
var nameIndex = LoadNameIndex(array, ref idx);
// TEMP BEGIN
//stream.ReadPagedData( pageSize, dataStreamPages[7], dataStreamSizes[7], array );
//idx = 4;
//var max = array.ReadInt32LEFromBytes( ref idx );
//idx = 0x58;
//var srcHdrStrs = new List<String[]>();
//while ( idx < max )
//{
// var sIdx = array.ReadInt32LEFromBytes( ref idx );
// var str1 = nameIndex[sIdx];
// var max2 = array.ReadInt32LEFromBytes( ref idx );
// if ( max2 != 0x28 )
// {
// }
// max2 += idx - 4;
// idx += 8;
// if ( array.ReadInt32LEFromBytes( ref idx ) != 0x58 )
// {
// }
// var strs = new List<String>();
// strs.Add( str1 );
// while ( idx < max2 )
// {
// var curStr = nameIndex[array.ReadInt32LEFromBytes( ref idx )];
// strs.Add( curStr );
// if ( String.Equals( curStr, strs[0] ) )
// {
// if ( array.ReadInt32LEFromBytes( ref idx ) != 0x65 )
// {
// }
// idx = max2;
// break;
// }
// }
// srcHdrStrs.Add( new String[] { "" + sIdx + " - " + ( sIdx % 52 ) + ": " + str1 } );// strs.ToArray() );
//}
//var srcHdrStr = String.Join( "\n", srcHdrStrs.Select( s => String.Join( "\n", s ) ) );
// TEMP END
// Read modules.
foreach (var module in modules)
{
if (module.stream > 0 && module.stream < dataStreamCount)
{
stream.ReadPagedData(pageSize, dataStreamPages[module.stream], dataStreamSizes[module.stream], array);
LoadFunctionsFromDBIModule(stream, pageSize, dataStreamPages, dataStreamSizes, array, streamNameIndices, nameIndex, module, instance);
}
}
// Apply token remapping table if exists
if (debugHeader != null && debugHeader.snTokenRidMap != UInt16.MinValue && debugHeader.snTokenRidMap != UInt16.MaxValue)
{
var tokenRemapSize = dataStreamSizes[debugHeader.snTokenRidMap];
stream.ReadPagedData(pageSize, dataStreamPages[debugHeader.snTokenRidMap], tokenRemapSize, array);
idx = 0;
var tokens = array.ReadUInt32ArrayLEFromBytes(ref idx, tokenRemapSize / INT_SIZE);
foreach (var function in instance.Modules.SelectMany(mod => mod.Functions))
{
function.Token = METHOD_TABLE | tokens[function.Token & METHOD_TABLE_INDEX_MASK];
}
}
return(instance);
}
private static IDictionary <Int32, PDBSource> LoadSourcesAndLinesFromModuleStream(
StreamInfo stream,
Int32 pageSize,
Int32[][] streamPages,
Int32[] streamSizes,
Byte[] array,
Int32 idx,
Int32 max,
IDictionary <String, Int32> streamNameIndices,
IDictionary <Int32, String> nameIndex,
PDBInstance instance,
List <PDBFunctionInfo> functions
)
{
var sourcesLocal = new Dictionary <Int32, PDBSource>();
var lines = new List <Tuple <Int32, PDBLine> > [functions.Count];
while (idx < max)
{
var sym = array.ReadInt32LEFromBytes(ref idx);
var size = array.ReadInt32LEFromBytes(ref idx);
var startIdx = idx;
var endIdx = idx + size;
switch (sym)
{
case SYM_DEBUG_SOURCE_INFO:
while (idx < endIdx)
{
var curSrcFileIdx = idx - startIdx;
var nameIdx = array.ReadInt32LEFromBytes(ref idx);
var thisLen = array.ReadByteFromBytes(ref idx);
/*var kind = */
array.ReadByteFromBytes(ref idx);
var name = nameIndex[nameIdx];
PDBSource pdbSource;
if (!instance.TryGetSource(name, out pdbSource))
{
pdbSource = new PDBSource(name);
Int32 sourceStreamIdx;
if (streamNameIndices.TryGetValue(SOURCE_FILE_PREFIX + name, out sourceStreamIdx))
{
var sourceBytes = stream.ReadPagedData(pageSize, streamPages[sourceStreamIdx], streamSizes[sourceStreamIdx]);
var tmpIdx = 0;
pdbSource.Language = sourceBytes.ReadGUIDFromBytes(ref tmpIdx);
pdbSource.Vendor = sourceBytes.ReadGUIDFromBytes(ref tmpIdx);
pdbSource.DocumentType = sourceBytes.ReadGUIDFromBytes(ref tmpIdx);
pdbSource.HashAlgorithm = sourceBytes.ReadGUIDFromBytes(ref tmpIdx);
pdbSource.Hash = sourceBytes.CreateAndBlockCopyTo(ref tmpIdx, sourceBytes.Length - tmpIdx);
}
instance.AddSource(pdbSource);
}
;
sourcesLocal.Add(curSrcFileIdx, pdbSource);
#if DEBUG
if (thisLen != 0)
{
throw new PDBException("Debyyg");
}
#endif
idx += thisLen;
Align4(ref idx);
}
break;
case SYM_DEBUG_LINE_INFO:
var addr = array.ReadInt32LEFromBytes(ref idx);
var section = array.ReadUInt16LEFromBytes(ref idx);
var flags = array.ReadUInt16LEFromBytes(ref idx);
/*var cod = */
array.ReadUInt32LEFromBytes(ref idx);
var funcIdx = functions.BinarySearchDeferredEqualityDetection(new PDBFunctionInfo(null, addr, section, -1), PDB_FUNC_ADDRESS_AND_TOKEN_BASED);
if (funcIdx >= 0)
{
// Skip the functions that already have lines
while (funcIdx < lines.Length && lines[funcIdx] != null && functions[funcIdx].segment == section && functions[funcIdx].address == addr)
{
++funcIdx;
}
if (funcIdx < lines.Length && functions[funcIdx].segment == section && functions[funcIdx].address == addr)
{
// We found the correct function index
var thisLines = new List <Tuple <Int32, PDBLine> >();
// Read line data
while (idx < endIdx)
{
var srcIdx = array.ReadInt32LEFromBytes(ref idx);
var lineCount = array.ReadInt32LEFromBytes(ref idx);
// Skip size information
idx += INT_SIZE;
// Save line and column start indices
var lineStartIdx = idx;
var columnStartIdx = idx + 8 * lineCount; // Each line is 2 integers
// Iterate each line
for (var i = 0; i < lineCount; ++i)
{
// Reset index after possible column read
idx = lineStartIdx + LINE_MULTIPLIER * i;
var offset = array.ReadInt32LEFromBytes(ref idx);
var line = new PDBLine(offset);
var lineFlags = array.ReadUInt32LEFromBytes(ref idx);
line.LineStart = (Int32)(lineFlags & 0x00ffffffu); // Lower 3 bytes are start line of statement/expression
line.LineEnd = line.LineStart + (Int32)((lineFlags & 0x7f000000u) >> 24); // High seven bits is delta of line
line.IsStatement = (lineFlags & 0x80000000u) == 0; // Highest bit is whether the line is statement
if ((flags & 1) != 0)
{
// Column info present
idx = columnStartIdx + COLUMN_MULTIPLIER * i; // Each column info is two shorts
line.ColumnStart = array.ReadUInt16LEFromBytes(ref idx);
line.ColumnEnd = array.ReadUInt16LEFromBytes(ref idx);
}
thisLines.Add(Tuple.Create(srcIdx, line));
}
}
lines[funcIdx] = thisLines;
}
#if DEBUG
else
{
throw new PDBException("Debyyg");
}
#endif
}
#if DEBUG
else
{
throw new PDBException("Debyyg");
}
#endif
break;
default:
#if DEBUG
throw new PDBException("Debyyg");
#else
break;
#endif
}
idx = endIdx;
}
// Postprocess line infos
for (var i = 0; i < lines.Length; ++i)
{
var lineList = lines[i];
if (lineList != null)
{
foreach (var line in lineList)
{
functions[i].function.Lines.GetOrAdd_NotThreadSafe(sourcesLocal[line.Item1].Name, ni => new List <PDBLine>())
.Add(line.Item2);
}
}
}
return(sourcesLocal);
}
