/// <summary>
/// Read the EH clause from a given file offset in the PE image.
/// </summary>
/// <param name="reader">R2R image reader<param>
/// <param name="offset">Offset of the EH clause in the image</param>
public EHClause(R2RReader reader, int offset)
{
Flags = (CorExceptionFlag)BitConverter.ToUInt32(reader.Image, offset + 0 * sizeof(uint));
TryOffset = BitConverter.ToUInt32(reader.Image, offset + 1 * sizeof(uint));
TryEnd = BitConverter.ToUInt32(reader.Image, offset + 2 * sizeof(uint));
HandlerOffset = BitConverter.ToUInt32(reader.Image, offset + 3 * sizeof(uint));
HandlerEnd = BitConverter.ToUInt32(reader.Image, offset + 4 * sizeof(uint));
ClassTokenOrFilterOffset = BitConverter.ToUInt32(reader.Image, offset + 5 * sizeof(uint));
if ((Flags & CorExceptionFlag.COR_ILEXCEPTION_CLAUSE_KIND_MASK) == CorExceptionFlag.COR_ILEXCEPTION_CLAUSE_NONE)
{
ClassName = MetadataNameFormatter.FormatHandle(reader.MetadataReader, MetadataTokens.Handle((int)ClassTokenOrFilterOffset));
}
}
public static TransitionBlock FromReader(R2RReader reader)
{
switch (reader.Architecture)
{
case Architecture.X86:
return(X86TransitionBlock.Instance);
case Architecture.X64:
return(reader.OS == OperatingSystem.Windows ? X64WindowsTransitionBlock.Instance : X64UnixTransitionBlock.Instance);
case Architecture.Arm:
return(ArmTransitionBlock.Instance);
case Architecture.Arm64:
return(Arm64TransitionBlock.Instance);
default:
throw new NotImplementedException();
}
}
