public void linkStage3(bool allowMissing)
{
for (uint i = 0; i < library.file.nreferences; i++)
{
if (library.file.referenceSection(i) == librarySection)
{
LinkedSymbol sym = library.symbols[library.file.referenceSymbol(i)];
ulong addr = startAddress + library.file.referenceOffset(i);
Console.WriteLine("Fixing address at " + addr + " (offset " + library.file.referenceOffset(i) + ") to point to '" + sym.name() + "' (at " + sym.address + ")");
byte sz = library.file.referenceWidth(i);
switch (sz)
{
case 0: // 1<<0 = 1 bytes (8 bits)
library.linker.target.setU8(addr, (byte)sym.finalValue());
break;
case 1: // 1<<1 = 2 bytes (16 bits)
library.linker.target.setU16(addr, (ushort)sym.finalValue(), library.file.bigEndian);
break;
case 2: // 1<<2 = 4 bytes (32 bits)
library.linker.target.setU32(addr, (uint)sym.finalValue(), library.file.bigEndian);
break;
case 3: // 1<<3 = 8 bytes (64 bits)
library.linker.target.setU64(addr, sym.finalValue(), library.file.bigEndian);
break;
default:
throw new LinkerException(library.file, "Bad reference size: " + sz);
}
}
}
}
public ulong finalValue()
{
if (isDummy())
{
if (isConst())
{
return(library.file.symbolOffset(index));
}
else if (isExpr())
{
LinkedSymbol l = library.symbols[library.file.symbolXLHS(index)];
LinkedSymbol o = library.symbols[library.file.symbolXOp(index)];
LinkedSymbol r = library.symbols[library.file.symbolXRHS(index)];
return(doexpr(l.finalValue(), o.name(), r.finalValue()));
}
else
{
throw new LinkerException(library.file, "Bad reference (this symbol can't be evaluated)");
}
}
else
{
return(address);
}
}