> : Shouldn't marking -ffixed-r9 -ffixed-r10 deal with this in a
> : forward-compatible way?
> 
> Yes.  This could be put in the CC1_SPEC and removed at a later date if a
> specific fixed register is chosen.  You'll get less optimal code as a
> result, though.  8-)

This should be done in SUBTARGET_CONDITIONAL_REGISTER_USAGE, which can be 
defined in arm/netbsdelf.h.

But it also needs to pick another register for PIC -- probably r8.

R.