mips64 n32 and n64 support in dl-machine.h

[Roland McGrath]

> I don't know of anyone planning on doing prelink for mips, and I
> suppose that, if it's to be done, it should be done in an
> ABI-compliant way (i.e., using the same mechanisms that Irix
> quickstart uses), and not by inventing something else.  Dynamic RELA
> is not needed, and AFAIK it's not part of the MIPS ELF64 ABI, so I'd
> rather not rely on it.

I doubt anyone will implement something like that.  The prelink mechanism
that Jakub Jelinek has implemented works in the same fashion on all platforms.

> Even though I've already thought of at least a few differences, and
> adjusted the code to this effect?  This would be sad.  But I don't
> care all that much.  I'd much rather prevent it from rotting by
> rejecting changes that modify rel but not rela.

It's unrealistic to think they will be caught when the rela code is not
being compiled.