arm questions

[H.J. Lu]

> Some folks in England put together ARM GNU/Linux, but they took a very
> long time to get the copyright stuff done.  For some reason that I do
> not know, that implementation used REL rather than RELA relocs.
> 
> In the meantime, Cygnus implemented ARM ELF, using RELA relocs.
> 
> It's obviously desirable to have a single ARM ELF ABI, and the best
> choice is probably the one currently being used for GNU/Linux.
> Therefore, when we straightened out the copyright situation, we dumped
> the Cygnus RELA implementation in favour of the GNU/Linux REL
> implementation.
> 

While we are on RELA/REL, could someone kindly enough tell me the
implementation and performance impacts between RELA and REL, on
both static and dynamic objects?

Thanks a lot.

-- 
H.J. Lu (hjl@gnu.org)