private static DbgId?GetDbgIdFromPEFile(string peFilePath)
{
DbgId?dbgId = null;
using (var file = File.Open(peFilePath, FileMode.Open, FileAccess.Read))
{
using (var portableExecutableReader = new PEReader(file))
{
foreach (var debugDirectory in portableExecutableReader.ReadDebugDirectory())
{
if (debugDirectory.Type == DebugDirectoryEntryType.CodeView)
{
var cv = portableExecutableReader.ReadCodeViewDebugDirectoryData(debugDirectory);
dbgId = new DbgId(cv.Guid, (uint)cv.Age, cv.Path);
break;
}
}
}
}
return(dbgId);
}
public async ValueTask <IPdbSymbolReader> GetSymbolReader(string peFilePath, Guid signature, uint age, string pdbName)
{
var sigKey = new DbgId(signature, age, pdbName);
if (!this.signaturePdbSymbolReaderMap.TryGetValue(sigKey, out var pdbSymbolReader))
{
// now check if we can find this pdb adjacent to the dll and obviously validate its guid and age
string pdbPath = Path.ChangeExtension(peFilePath, ".pdb");
bool validPdb = false;
bool validPortablePdb = IsValidPortablePdb(pdbPath, signature);
if (!validPortablePdb)
{
// now check to see if the filename embedded in the debug info works
pdbPath = pdbName;
validPortablePdb = IsValidPortablePdb(pdbPath, signature);
if (!validPortablePdb)
{
// now goto the symbol server
pdbPath = await this.symbolServerArtifactRetriever.DownloadPortablePdb(Path.GetFileName(pdbName), signature, skipSymbolServer : false);
validPortablePdb = pdbPath != null; // convention, we return null on failure from symbol servers
if (!validPortablePdb)
{
// now check if we can find this pdb adjacent to the dll and obviously validate its guid and age
pdbPath = Path.ChangeExtension(peFilePath, ".pdb");
validPdb = IsValidPdb(pdbPath, signature, age);
if (!validPdb)
{
// now check to see if the filename embedded in the debug info works
pdbPath = pdbName;
validPdb = IsValidPdb(pdbPath, signature, age);
if (!validPdb)
{
// now goto the symbol server
pdbPath = await this.symbolServerArtifactRetriever.DownloadPdb(Path.GetFileName(pdbName), signature, age, skipSymbolServer : false);
validPdb = pdbPath != null; // convention, we return null on failure from symbol servers
}
}
}
}
}
if (validPdb)
{
pdbSymbolReader = new WindowsPdbSymbolReader(pdbPath);
}
else if (validPortablePdb)
{
pdbSymbolReader = new PortablePdbSymbolReader(pdbPath);
}
this.signaturePdbSymbolReaderMap.Add(sigKey, pdbSymbolReader); // pdbSymbolReader can be null, which means we couldn't find one
}
return(pdbSymbolReader);
}
