/// <summary>
/// Detect whether a given stream contains portable or Windows PDB format data
/// and deserialize CCI PDB information from the given format.
/// </summary>
/// <param name="peFilePath">Path to IL PE module (needed only for portable PDB's)</param>
/// <param name="standalonePdbPath">Path to standalone Windows PDB (not used for portable PDBs)</param>
public static PdbInfo TryLoadFunctions(
string peFilePath,
string standalonePdbPath)
{
if (!string.IsNullOrEmpty(peFilePath))
{
using (Stream peStream = new FileStream(peFilePath, FileMode.Open, FileAccess.Read))
using (PEReader peReader = new PEReader(peStream))
{
MetadataReaderProvider pdbReaderProvider;
string pdbPath;
if (peReader.TryOpenAssociatedPortablePdb(peFilePath, File.OpenRead, out pdbReaderProvider, out pdbPath))
{
using (pdbReaderProvider)
{
// Load associated portable PDB
PdbWriterForCci cciWriter = new PdbWriterForCci();
new PdbConverter().ConvertPortableToWindows(
peReader,
pdbReaderProvider.GetMetadataReader(),
cciWriter,
PdbConversionOptions.SuppressSourceLinkConversion);
PdbInfo pdbInfo = new PdbInfo()
{
Functions = cciWriter.Functions,
TokenToSourceMapping = cciWriter.TokenToSourceMapping,
Age = cciWriter.Age,
Guid = cciWriter.Guid,
// Ignored for portable PDBs to avoid bringing in a dependency on Newtonsoft.Json
SourceServerData = null,
SourceLinkData = cciWriter.SourceLinkData
};
return(pdbInfo);
}
}
}
}
if (File.Exists(standalonePdbPath))
{
using (FileStream pdbInputStream = new FileStream(standalonePdbPath, FileMode.Open, FileAccess.Read))
{
if (!PdbConverter.IsPortable(pdbInputStream))
{
// Load CCI data from Windows PDB
return(PdbFile.LoadFunctions(pdbInputStream));
}
}
}
// Non-existent Windows PDB or mismatched portable PDB
return(null);
}
internal static PdbInfo LoadFunctions(Stream read)
{
PdbInfo pdbInfo = new PdbInfo();
pdbInfo.TokenToSourceMapping = new Dictionary <uint, PdbTokenLine>();
BitAccess bits = new BitAccess(64 * 1024);
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;
Dictionary <string, PdbSource> sourceCache = new Dictionary <string, PdbSource>();
dir.streams[1].Read(reader, bits);
Dictionary <string, int> nameIndex = LoadNameIndex(bits, out pdbInfo.Age, out pdbInfo.Guid);
int nameStream;
if (!nameIndex.TryGetValue("/NAMES", out nameStream))
{
throw new PdbException("Could not find the '/NAMES' stream: the PDB file may be a public symbol file instead of a private symbol file");
}
dir.streams[nameStream].Read(reader, bits);
IntHashTable names = LoadNameStream(bits);
int srcsrvStream;
if (!nameIndex.TryGetValue("SRCSRV", out srcsrvStream))
{
pdbInfo.SourceServerData = string.Empty;
}
else
{
DataStream dataStream = dir.streams[srcsrvStream];
byte[] bytes = new byte[dataStream.contentSize];
dataStream.Read(reader, bits);
pdbInfo.SourceServerData = bits.ReadBString(bytes.Length);
}
dir.streams[3].Read(reader, bits);
LoadDbiStream(bits, out modules, out header, true);
List <PdbFunction> funcList = new List <PdbFunction>();
if (modules != null)
{
for (int m = 0; m < modules.Length; m++)
{
var module = modules[m];
if (module.stream > 0)
{
dir.streams[module.stream].Read(reader, bits);
if (module.moduleName == "TokenSourceLineInfo")
{
LoadTokenToSourceInfo(bits, module, names, dir, nameIndex, reader, pdbInfo.TokenToSourceMapping, sourceCache);
continue;
}
LoadFuncsFromDbiModule(bits, module, names, funcList, true, dir, nameIndex, reader, sourceCache);
}
}
}
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.byAddressAndToken);
//Array.Sort(funcs, PdbFunction.byToken);
pdbInfo.Functions = funcs;
return(pdbInfo);
}
