void PatchRawSmallSection(ByteBuffer buffer, MetadataBuilder metadata)
{
var length = ReadByte ();
buffer.WriteByte (length);
Advance (2);
buffer.WriteUInt16 (0);
var count = length / 12;
PatchRawExceptionHandlers (buffer, metadata, count, false);
}
void PatchRawSection(ByteBuffer buffer, MetadataBuilder metadata)
{
var position = base.position;
Align (4);
buffer.WriteBytes (base.position - position);
const byte fat_format = 0x40;
const byte more_sects = 0x80;
var flags = ReadByte ();
if ((flags & fat_format) == 0) {
buffer.WriteByte (flags);
PatchRawSmallSection (buffer, metadata);
} else
PatchRawFatSection (buffer, metadata);
if ((flags & more_sects) != 0)
PatchRawSection (buffer, metadata);
}
public ByteBuffer PatchRawMethodBody(MethodDefinition method, CodeWriter writer, out int code_size, out MetadataToken local_var_token)
{
var position = MoveTo (method);
var buffer = new ByteBuffer ();
var flags = ReadByte ();
switch (flags & 0x3) {
case 0x2: // tiny
buffer.WriteByte (flags);
local_var_token = MetadataToken.Zero;
code_size = flags >> 2;
PatchRawCode (buffer, code_size, writer);
break;
case 0x3: // fat
Advance (-1);
PatchRawFatMethod (buffer, writer, out code_size, out local_var_token);
break;
default:
throw new NotSupportedException ();
}
MoveBackTo (position);
return buffer;
}
public ByteBuffer PatchRawMethodBody(MethodDefinition method, CodeWriter writer, out MethodSymbols symbols)
{
var buffer = new ByteBuffer ();
symbols = new MethodSymbols (method.Name);
this.method = method;
reader.context = method;
MoveTo (method.RVA);
var flags = ReadByte ();
MetadataToken local_var_token;
switch (flags & 0x3) {
case 0x2: // tiny
buffer.WriteByte (flags);
local_var_token = MetadataToken.Zero;
symbols.code_size = flags >> 2;
PatchRawCode (buffer, symbols.code_size, writer);
break;
case 0x3: // fat
base.position--;
PatchRawFatMethod (buffer, symbols, writer, out local_var_token);
break;
default:
throw new NotSupportedException ();
}
var symbol_reader = reader.module.SymbolReader;
if (symbol_reader != null && writer.metadata.write_symbols) {
symbols.method_token = GetOriginalToken (writer.metadata, method);
symbols.local_var_token = local_var_token;
symbol_reader.Read (symbols);
}
return buffer;
}
public bool GetDebugHeader(out ImageDebugDirectory directory, out byte [] header)
{
if (IsEmbedded) {
directory = new ImageDebugDirectory ();
header = Empty<byte>.Array;
return false;
}
directory = new ImageDebugDirectory () {
MajorVersion = 256,
MinorVersion = 20577,
Type = 2,
};
var buffer = new ByteBuffer ();
// RSDS
buffer.WriteUInt32 (0x53445352);
// Module ID
buffer.WriteBytes (module.Mvid.ToByteArray ());
// PDB Age
buffer.WriteUInt32 (1);
// PDB Path
buffer.WriteBytes (System.Text.Encoding.UTF8.GetBytes (writer.BaseStream.GetFileName ()));
buffer.WriteByte (0);
header = new byte [buffer.length];
Buffer.BlockCopy (buffer.buffer, 0, header, 0, buffer.length);
directory.SizeOfData = header.Length;
return true;
}
