> >  > > * (gcc) Ensure 8-byte stack alignment on function entry [rearnsha]
> >
> > Any guesses on how hard this will be to implement in the compiler?
> 
> Non-trivial, at least.  The obvious #defines (STACK_BOUNDARY and
> PREFERRED_STACK_BOUNDARY) don't seem to do anything useful, anyway.

I'm sure I spotted something that implied that gcc already generated
8-byte aligned stack frames for SPARC (to do with interworking with
code compiled with one of the sun compilers).

So maybe it won't be too hard - if you know how gcc works!

(I've a strongarm/sidekick system here I might try to port netbsd to,
probably work better than the vxWorks port - less frustrating anyway)

    David