Re: Question on BIGGEST_ALIGNMENT in GCC on NetBSD/m68k

Hi Adrian,

On Fri, 13 Jun 2025 at 15:00, John Paul Adrian Glaubitz
<[email protected]> wrote:
> On Fri, 2025-06-13 at 14:51 +0200, John Paul Adrian Glaubitz wrote:
> > On Fri, 2025-06-13 at 14:30 +0200, Geert Uytterhoeven wrote:
> > > So you change the default alignment, bump all so-versions in userspace,
> > > but keep the kernel-userspace ABI the same by adding explicit alignment
> > > tags where needed? Old binaries keep on working, new binaries join
> > > the ecosystem of anything that still builds on 32-bit big-endian ;-)
> >
> > I think you're still missing the part that I'm not maintaining my own Linux
> > distribution meaning that I cannot bump SO versions or making any substantial
> > changes to the distributions.
>
> To make this perfectly clear: The whole point about making this change is to *not*
> having to roll my own Linux distribution for Linux/m68k. I'm building vanilla Debian
> on m68k which means that I *don't* want to make any changes to the distribution as
> I simply do not have any control over this.
>
> Do you expect that I can go to the glibc project and ask them to bump the ABI version
> from 6 to 7 because some people think it's extremely important to be able to run a 1993
> Linux binary an Amiga running a Debian unstable snapshot from 2025.

Sorry, I didn't know you have to coordinate this with the glibc project.
But you have to do something to mark it incompatible with older versions...
IIRC, I saw Debian bumping SO versions before...

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