private bool ReadMethodDataSection(ReaderContext ctxt, BlobReader reader, Func <OpCode, Row, object> resolveRow)
{
reader.Align(4);
var flags = (CorILMethodSect)reader.ReadByte();
if ((flags & CorILMethodSect.EHTable) == 0)
{
throw new PEException("unrecognised method data section");
}
var isFat = (flags & CorILMethodSect.FatFormat) != 0;
var count = default(uint);
if (isFat)
{
var size = reader.ReadUInt24();
if (size < 4 || (size - 4) % 24 != 0)
{
throw new InvalidOperationException("invalid method data section");
}
count = (size - 4) / 24;
}
else
{
var size = (uint)reader.ReadByte();
// NOTE: Looks live VB emits size without including the 4 byte header...
if (size < 4 || (size - 4) % 12 != 0)
{
throw new InvalidOperationException("invalid method data section");
}
var padding = reader.ReadUInt16();
if (padding != 0)
{
throw new PEException("unexpected data");
}
count = (size - 4) / 12;
}
for (var i = 0; i < count; i++)
{
var c = new ExceptionHandlingClause();
c.Read(ctxt, reader, isFat, resolveRow);
ExceptionHandlingClauses.Add(c);
}
return((flags & CorILMethodSect.MoreSects) != 0);
}
public void Read(ReaderContext ctxt, BlobReader reader)
{
Page = reader.ReadUInt32();
if ((Page & 0xfff) != 0)
throw new PEException("invalid FixupBlock.Page");
var blockSize = reader.ReadUInt32();
var numFixupEntries = (blockSize - 8)/ FixupEntry.Size;
Entries = new FixupEntry[(int)numFixupEntries];
for (var i = 0; i < numFixupEntries; i++)
Entries[i].Read(ctxt, reader);
reader.Align(4);
}
private bool ReadMethodDataSection(ReaderContext ctxt, BlobReader reader, Func<OpCode, Row, object> resolveRow)
{
reader.Align(4);
var flags = (CorILMethodSect)reader.ReadByte();
if ((flags & CorILMethodSect.EHTable) == 0)
throw new PEException("unrecognised method data section");
var isFat = (flags & CorILMethodSect.FatFormat) != 0;
var count = default(uint);
if (isFat)
{
var size = reader.ReadUInt24();
if (size < 4 || (size - 4) % 24 != 0)
throw new InvalidOperationException("invalid method data section");
count = (size - 4) / 24;
}
else
{
var size = (uint)reader.ReadByte();
// NOTE: Looks live VB emits size without including the 4 byte header...
if (size < 4 || (size - 4) % 12 != 0)
throw new InvalidOperationException("invalid method data section");
var padding = reader.ReadUInt16();
if (padding != 0)
throw new PEException("unexpected data");
count = (size - 4) / 12;
}
for (var i = 0; i < count; i++)
{
var c = new ExceptionHandlingClause();
c.Read(ctxt, reader, isFat, resolveRow);
ExceptionHandlingClauses.Add(c);
}
return (flags & CorILMethodSect.MoreSects) != 0;
}