possible powerpc 40x problem in 2.12

Daniel Jacobowitz drow@mvista.com
Fri Mar 1 10:52:00 GMT 2002


On Fri, Mar 01, 2002 at 11:39:34AM -0600, Joel Sherrill wrote:
> 
> 
> Alan Modra wrote:
> > 
> > On Fri, Mar 01, 2002 at 06:11:20AM -0600, Joel Sherrill wrote:
> > >
> > > Could you point me to where the gcc cpu cflags are translated into
> > > gas flags in gcc so I can put together a patch and submit it?  This
> > > is a new one for me but I am happy to try to fix it. :)
> > 
> > In this case, gcc/config/rs6000/rs6000.h:ASM_CPU_SPEC
> 
> Thank you.  It really wasn't that hard to decipher once I knew where
> to look. :)
> 
> It currently has
> 
> %{mcpu=403: -mppc} \
> 
> and should be changed to
> 
> %{mcpu=403: -m403} \
> %{mcpu=405: -m405} \
> 
> Right?
> 
> Also gcc does not appear to know anything about the -m74xx set of
> switches.  Should it?  I know RTEMS uses inline assembly that
> makes this matter sometimes.

Yes, it probably should... these changes should wait until 2.12 is
released, as they add a dependency on the existence of those flags. 
Ugh.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer



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