[PATCH 7/16] Early serial debug support for PPC44x

[Josh Boyer]

On Wed, 2007-02-14 at 13:08 +1030, Alan Modra wrote:
> > > 
> > > I would guess that this isn't a matter of how old the assembler is,
> > > but how the assembler was built.  If built on a 32-bit host with no
> > > 64-bit targets supported, then most internal assembler variables
> > > are 32-bit and 64-bit constants are not handled very well.
> > > 
> > > You probably should avoid 64-bit expressions on a 32-bit target.
> > 
> > Well, yes, but how.
> 
> No idea, but I haven't even looked at the code in question.  I'm just
> pointing out the toolchain limitation.  It sounds like what you've
> done requires that people build their binutils with
> --enable-64-bit-bfd or choose support for an extra 64-bit target,
> eg. --enable-targets=powerpc64-linux

Yes, that seems to be the case.  I built a powerpc64 cross toolchain
this morning and recompiled the kernel.  It worked just fine.

But I also think we want to avoid requiring that in peoples toolchains.
I'll see if we can't accomplish what we're trying to do some other way
without being too ugly.

josh