private void BuildTextSection()
{
// .text layout
// IAT (single entry 8 bytes for pure CIL)
// CLIHeader (72 bytes)
// CIL instructions for all methods (variable size)
// Strong Name Signature
// MetaData
// ManagedResources
// ImportTable (40 bytes)
// ImportLookupTable(8 bytes) (same as IAT for standard CIL files)
// Hint/Name Tables with entry "_CorExeMain" for .exe file and "_CorDllMain" for .dll (14 bytes)
// ASCII string "mscoree.dll" referenced in ImportTable (+ padding = 16 bytes)
// Entry Point (0xFF25 followed by 4 bytes 0x400000 + RVA of .text)
codeStart = FileImage.IATSize + FileImage.CLIHeaderSize;
if (Diag.DiagOn)
{
Console.WriteLine("Code starts at " + Hex.Int(codeStart));
}
metaData.BuildMetaData();
// strongNameSig = metaData.GetStrongNameSig();
metaDataOffset = FileImage.IATSize + FileImage.CLIHeaderSize + metaData.CodeSize();
if (pdbWriter != null)
{
debugSize = 0x1C; // or size of debugBytes??
debugOffset = metaDataOffset;
metaDataOffset += (uint)debugBytesSize + debugSize + NumToAlign((uint)debugBytesSize, 4);
}
resourcesOffset = metaDataOffset + metaData.Size();
resourcesSize = metaData.GetResourcesSize();
importTableOffset = resourcesOffset + resourcesSize;
importTablePadding = NumToAlign(importTableOffset, 16);
importTableOffset += importTablePadding;
importLookupTableOffset = importTableOffset + FileImage.ImportTableSize;
hintNameTableOffset = importLookupTableOffset + FileImage.IATSize;
runtimeEngineOffset = hintNameTableOffset + (uint)hintNameTable.Length;
entryPointOffset = runtimeEngineOffset + (uint)runtimeEngine.Length;
totalImportTableSize = entryPointOffset - importTableOffset;
if (Diag.DiagOn)
{
Console.WriteLine("total import table size = " + totalImportTableSize);
Console.WriteLine("entrypoint offset = " + Hex.Int(entryPointOffset));
}
entryPointPadding = NumToAlign(entryPointOffset, 4) + 2;
entryPointOffset += entryPointPadding;
entryPointReloc = entryPointOffset + 2;
text.IncTide(entryPointOffset + 6);
// The following lines may have some benefit for speed,
// but can increase the PE file size by up to 10k in
// some circumstances. Can be commented out safely.
if (text.Tide() > 8 * FileImage.maxFileAlign)
{
verInfo.fileAlign = FileImage.maxFileAlign;
}
else if (text.Tide() > 2 * FileImage.maxFileAlign)
{
verInfo.fileAlign = FileImage.midFileAlign;
}
text.SetSize(NumToAlign(text.Tide(), verInfo.fileAlign));
if (Diag.DiagOn)
{
Console.WriteLine("text size = " + text.Size() + " text tide = " + text.Tide() + " text padding = " + text.Padding());
Console.WriteLine("metaDataOffset = " + Hex.Int(metaDataOffset));
Console.WriteLine("importTableOffset = " + Hex.Int(importTableOffset));
Console.WriteLine("importLookupTableOffset = " + Hex.Int(importLookupTableOffset));
Console.WriteLine("hintNameTableOffset = " + Hex.Int(hintNameTableOffset));
Console.WriteLine("runtimeEngineOffset = " + Hex.Int(runtimeEngineOffset));
Console.WriteLine("entryPointOffset = " + Hex.Int(entryPointOffset));
Console.WriteLine("entryPointPadding = " + Hex.Int(entryPointPadding));
}
}