PATCH: Remove bfd_comdat_info and move section_already_linked

[Nick Clifton]

Hi H.J.

> > I like it, except that it seems to me that you could leave
> > section_already_linked where it is, and just provide a bfd xvec
> > predicate.  That would save some code duplication, which helps
> > in maintaining the linker.
> > 
> 
> The problem is that piece of code can be very much format specific. I
> have a follow-on patch to fix
> 
> http://sources.redhat.com/bugzilla/show_bug.cgi?id=246
> 
> My patch needs to access ELF backend. To do it in the linker, I will
> need to add another field to bfd xvec and we have to do more checking
> on input to see if it is ELF. I think the code duplication is very
> minimum here.

Well you still have the ...section_already_linked() code duplicated
three times.  That could be reduced.  Plus there is a problem in that
some of the COFF based ports do not currently include cofflink.lo when
building libbfd.a, so that there is an unresolved reference to
_bfd_coff_section_already_linked().

How about this variation on your patch which adds in the necessary
fixes to bfd/configure.in and also creates a generic
section_already_linked() function which takes file format specific
helper functions as arguments ?

Cheers
  Nick

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