internal CLRMetaData(PortableExecutableImage image, Location location, CLRMetaDataHeader header, CLRMetaDataStreamTable streamTable,
CLRMetaDataStreams streams)
{
_image = image;
Location = location;
Header = header;
StreamTable = streamTable;
Streams = streams;
}
internal static async Task <CLRMetaData> GetAsync(PortableExecutableImage image, CLRHeader header)
{
var calc = image.GetCalculator();
var imageBase = image.NTHeaders.OptionalHeader.ImageBase;
var rva = header.MetaDataAddress;
var va = imageBase + rva;
var offset = calc.RVAToOffset(rva);
var size = header.MetaDataSize;
var section = calc.RVAToSection(rva);
var location = new Location(image, offset, rva, va, size, size, section);
var metaDataHeader = await CLRMetaDataHeader.LoadAsync(image, location).ConfigureAwait(false);
var metaDataStreamTable = await CLRMetaDataStreamTable.LoadAsync(image, metaDataHeader).ConfigureAwait(false);
var metaDataStreams = await CLRMetaDataStreams.LoadAsync(image, location, metaDataStreamTable).ConfigureAwait(false);
var metaData = new CLRMetaData(image, location, metaDataHeader, metaDataStreamTable, metaDataStreams);
return(metaData);
}
internal static Task <CLRMetaDataStreams> LoadAsync(PortableExecutableImage image, Location mdLocation, CLRMetaDataStreamTable streamTable)
{
try
{
var imageBase = image.NTHeaders.OptionalHeader.ImageBase;
var streams = new CLRMetaDataStream[streamTable.Count];
for (var i = 0; i < streams.Length; i++)
{
var entry = streamTable[i];
var stream = new CLRMetaDataStream(image, mdLocation, imageBase, entry);
streams[i] = stream;
}
uint rva = 0;
ulong va = 0;
ulong offset = 0;
ulong size = 0;
if (streams.Length > 0)
{
var stream = streams.MinBy(s => s.Location.FileOffset);
rva = stream.Location.RelativeVirtualAddress;
va = stream.Location.VirtualAddress;
offset = stream.Location.FileOffset;
}
foreach (var stream in streams)
{
size += stream.Location.FileSize;
}
var location = new Location(image, offset, rva, va, size, size);
var result = new CLRMetaDataStreams(image, location, streams);
return(Task.FromResult(result));
}
catch (Exception ex)
{
throw new PortableExecutableImageException(image, "Could not load CLR meta-data streams from stream.", ex);
}
}