static SymbolReader CreateCore(PdbReaderContext pdbContext, Metadata metadata, DataReaderFactory pdbStream)
{
SymbolReader symReader = null;
bool error = true;
try {
if (!pdbContext.HasDebugInfo)
{
return(null);
}
if ((pdbContext.Options & PdbReaderOptions.MicrosoftComReader) != 0 && pdbStream is not null && IsWindowsPdb(pdbStream.CreateReader()))
{
symReader = Dss.SymbolReaderWriterFactory.Create(pdbContext, metadata, pdbStream);
}
else
{
symReader = CreateManaged(pdbContext, metadata, pdbStream);
}
if (symReader is not null)
{
error = false;
return(symReader);
}
}
public static SymbolReader Create(PdbReaderOptions options, Metadata metadata, byte[] pdbData)
{
var pdbContext = new PdbReaderContext(metadata.PEImage, options);
if (!pdbContext.HasDebugInfo)
{
return(null);
}
return(CreateCore(pdbContext, metadata, ByteArrayDataReaderFactory.Create(pdbData, filename: null)));
}
public static SymbolReader Create(PdbReaderOptions options, Metadata metadata, string pdbFileName)
{
var pdbContext = new PdbReaderContext(metadata.PEImage, options);
if (!pdbContext.HasDebugInfo)
{
return(null);
}
return(CreateCore(pdbContext, metadata, DataReaderFactoryUtils.TryCreateDataReaderFactory(pdbFileName)));
}
public static SymbolReader TryCreateEmbeddedPdbReader(PdbReaderOptions options, Metadata metadata)
{
var pdbContext = new PdbReaderContext(metadata.PEImage, options);
if (!pdbContext.HasDebugInfo)
{
return(null);
}
return(TryCreateEmbeddedPortablePdbReader(pdbContext, metadata));
}
static SymbolReader CreateManaged(PdbReaderContext pdbContext, Metadata metadata, DataReaderFactory pdbStream)
{
try {
// Embedded PDBs have priority
var embeddedReader = TryCreateEmbeddedPortablePdbReader(pdbContext, metadata);
if (embeddedReader != null)
{
pdbStream?.Dispose();
return(embeddedReader);
}
return(CreateManagedCore(pdbContext, pdbStream));
}
catch {
pdbStream?.Dispose();
throw;
}
}
public static SymbolReader CreateFromAssemblyFile(PdbReaderOptions options, Metadata metadata, string assemblyFileName)
{
var pdbContext = new PdbReaderContext(metadata.PEImage, options);
if (!pdbContext.HasDebugInfo)
{
return(null);
}
if (!pdbContext.TryGetCodeViewData(out var guid, out uint age, out var pdbWindowsFilename))
{
return(null);
}
string pdbFilename;
int index = pdbWindowsFilename.LastIndexOfAny(windowsPathSepChars);
if (index >= 0)
{
pdbFilename = pdbWindowsFilename.Substring(index + 1);
}
else
{
pdbFilename = pdbWindowsFilename;
}
string fileToCheck;
try {
fileToCheck = assemblyFileName == string.Empty ? pdbFilename : Path.Combine(Path.GetDirectoryName(assemblyFileName), pdbFilename);
if (!File.Exists(fileToCheck))
{
var ext = Path.GetExtension(pdbFilename);
if (string.IsNullOrEmpty(ext))
{
ext = "pdb";
}
fileToCheck = Path.ChangeExtension(assemblyFileName, ext);
}
}
catch (ArgumentException) {
return(null); // Invalid filename
}
return(Create(options, metadata, fileToCheck));
}
static SymbolReader CreateManagedCore(PdbReaderContext pdbContext, DataReaderFactory pdbStream)
{
if (pdbStream == null)
{
return(null);
}
try {
var reader = pdbStream.CreateReader();
if (reader.Length >= 4)
{
uint sig = reader.ReadUInt32();
if (sig == 0x424A5342)
{
return(Portable.SymbolReaderFactory.TryCreate(pdbContext, pdbStream, isEmbeddedPortablePdb: false));
}
return(Managed.SymbolReaderFactory.Create(pdbContext, pdbStream));
}
}
catch (IOException) {
}
pdbStream?.Dispose();
return(null);
}
static SymbolReader CreateCore(PdbReaderContext pdbContext, Metadata metadata, DataReaderFactory pdbStream)
{
SymbolReader symReader = null;
bool error = true;
try {
if (!pdbContext.HasDebugInfo)
{
return(null);
}
if ((pdbContext.Options & PdbReaderOptions.MicrosoftComReader) != 0 && !(pdbStream is null) && IsWindowsPdb(pdbStream.CreateReader()))
{
symReader = Dss.SymbolReaderWriterFactory.Create(pdbContext, metadata, pdbStream);
}
else
{
symReader = CreateManaged(pdbContext, metadata, pdbStream);
}
if (!(symReader is null))
{
error = false;
return(symReader);
}
}
catch (IOException) {
}
finally {
if (error)
{
pdbStream?.Dispose();
symReader?.Dispose();
}
}
return(null);
}
public static SymbolReader Create(PdbReaderOptions options, Metadata metadata, DataReaderFactory pdbStream)
{
var pdbContext = new PdbReaderContext(metadata.PEImage, options);
return(CreateCore(pdbContext, metadata, pdbStream));
}
static SymbolReader TryCreateEmbeddedPortablePdbReader(PdbReaderContext pdbContext, Metadata metadata) => Portable.SymbolReaderFactory.TryCreateEmbeddedPortablePdbReader(pdbContext, metadata);
