[RFA] ARM OABI - pc-relative relocations

[Richard Earnshaw]

> Richard Earnshaw <rearnsha@arm.com> writes:
> >> Patch is appended.  Comments?  I do not know the proper way to get
> >> USE_REL set to 0; obviously "#ifndef NOT_VXWORKS" is not the right
> >> approach.
> >
> > Well, I'd use an option to start with... -mrela?  As for the default for 
> > that flag, then I would think you could use a te-vxworks.h to define 
> > something appropriate.
> 
> Sounds doable.  Could you give some hints on how to add BFD options?
> I need this for MIPS too, so a generic way would be preferable.
> 

Argh!  I'd forgotten that this was in the BFD, where nothing is ever that 
simple...

The correct thing to do here is to create an bfd_elf32_arm_vxworks_vec; 
this is substantially the same as a bfd_elf32_little_arm_vec, except that 
some of the defaults are different.

It should then be a fairly straight-forward matter to build a set of 
wrappers that define the correct things before pulling in the more generic 
arm-elf files.

If you add the appropriate emulations to the configuration, then it should 
be possible to link in standard arm-elf objects as well.  They aren't that 
different.

The assembler should then also be able to find out what to do by 
interrogating the BFD.

R.