[rfc] new bfd hook: additional link map text

[Alan Modra]

On Tue, May 06, 2014 at 11:15:49AM -0400, DJ Delorie wrote:
> 
> > > Why not adding a new field in ld_emulation_xfer_struct ?  Looks lighter.
> > 
> > Attached, mostly.  Git is giving me a diff relative to the previous patch.

I think the idea is good.  I'm assuming the previous patch won't be
going in, nor the debug printfs. :)  The place to declare
rx_additional_link_map_text is in a new bfd/elf32-rx.h file, included
by both ld/emultempl/rxelf.em and bfd/elf32-rx.c, assuming the latter
is where you'll define the function.

-- 
Alan Modra
Australia Development Lab, IBM