private ChecksumAlgorithmType ChecksumAlgorithmForFullPdb()
{
string fileName = Path.GetFileName(this.FileName);
string extension = Path.GetExtension(fileName);
string pdbPath = this.FileName.Replace(fileName, fileName.Replace(extension, ".pdb"));
if (!File.Exists(pdbPath))
{
return(ChecksumAlgorithmType.Unknown);
}
using var pdbStream = new FileStream(pdbPath, FileMode.Open, FileAccess.Read);
var metadataProvider = new SymMetadataProvider(this.metadataReader);
object importer = SymUnmanagedReaderFactory.CreateSymReaderMetadataImport(metadataProvider);
ISymUnmanagedReader3 reader = SymUnmanagedReaderFactory.CreateReaderWithMetadataImport <ISymUnmanagedReader3>(pdbStream, importer, SymUnmanagedReaderCreationOptions.UseComRegistry);
try
{
Guid algorithm = Guid.Empty;
foreach (ISymUnmanagedDocument document in reader.GetDocuments())
{
document.GetChecksumAlgorithmId(ref algorithm);
return(algorithm == sha256guid ? ChecksumAlgorithmType.Sha256 : ChecksumAlgorithmType.Sha1);
}
}
finally
{
_ = ((ISymUnmanagedDispose)reader).Destroy();
}
return(ChecksumAlgorithmType.Unknown);
}
private ISymUnmanagedReader GetReaderForFrame(ClrStackFrame frame)
{
ClrModule module = frame.Method?.Type?.Module;
PdbInfo info = module?.Pdb;
ISymUnmanagedReader reader = null;
string name = string.Empty;
if (info != null)
{
if (_pdbReaders.TryGetValue(info, out reader))
{
return(reader);
}
name = Path.GetFileName(info.FileName);
if (!File.Exists(name))
{
_logger?.LogTrace("Symbol file {0} missing", name);
return(null);
}
try
{
Stream stream = File.OpenRead(name);
if (IsPortablePdb(stream))
{
var bindar = new SymBinder();
int result = bindar.GetReaderFromPdbFile(new MetaDataImportProvider(module.MetadataImport), name, out reader);
}
else
{
reader = SymUnmanagedReaderFactory.CreateReaderWithMetadataImport <ISymUnmanagedReader3>(stream, module.MetadataImport, SymUnmanagedReaderCreationOptions.Default);
}
}
catch (Exception e)
{
_logger?.LogError(e, "Unable to obtain symbol reader for {0}", name);
}
}
if (reader != null)
{
_logger?.LogTrace("Symbol file {0} found, reader created", name);
_pdbReaders.Add(info, reader);
}
else
{
_logger?.LogTrace("Unable to obtain symbol reader for {0}", name);
}
return(reader);
}