[patch] fallback unwinder for hppa

[Andrew Cagney]

>>It should be possible to encode this information directly in the 
>>> saved_regs array.  For instance, near the end, round:
> 
> [...]
> 
>>>    saved_regs[PCOQ_TAIL_REGNUM] = saved_regs[PCOQ_HEAD_REGNUM]
> 
> 
> hrm? i don't see how that gives the same thing? we want an unwind of
> PCOQ_TAIL_REGNUM to always return the value of PCOQ_HEAD_REGNUM + 4

Ah (it should be possible to encode that, but thats getting a bit beyond 
the current problem).

Ok then.

Andrew

> randolph