Re: Question on BIGGEST_ALIGNMENT in GCC on NetBSD/m68k

Geert Uytterhoeven <[email protected]> Wed, 18 Jun 2025 11:56:26 +0200

Newsgroups	gmane.linux.ports.m68k,gmane.os.netbsd.ports.m68k,gmane.linux.debian.ports.68k
Message-ID	<CAMuHMdVuU1bsoUwXNkuUvxjb-F-YS325dEX+KPtY4FJPbtMUXw@mail.gmail.com>

Hi Adrian,

On Wed, 18 Jun 2025 at 11:49, John Paul Adrian Glaubitz
<[email protected]> wrote:
> On Wed, 2025-06-18 at 11:36 +0200, Geert Uytterhoeven wrote:
> > > I only know about Gentoo and Debian and both want to make the switch.
> >
> > Buildroot? Which is probably where the real product users (using Coldfire)
> > are hiding...
>
> Coldfire already uses a different alignment (for the stack):
>
> /* ColdFire and fido strongly prefer a 32-bit aligned stack.  */
> #define PREFERRED_STACK_BOUNDARY \
>   ((TARGET_COLDFIRE || TARGET_FIDOA) ? 32 : 16)
>
> It's instruction set is also not fully compatible AFAIK.

Sure, but you will impact it regardless.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds