Re: Tuple and changes for m68k with -malign-int

Geert Uytterhoeven <[email protected]> Mon, 19 May 2025 10:07:53 +0200

Newsgroups	gmane.linux.debian.ports.68k,gmane.comp.lib.glibc.user,gmane.linux.ports.m68k
Message-ID	<CAMuHMdVxxRBP+2o6vh7JQpLEWC1D5+n8ZFsy4Jo6f6P-7PD4HQ@mail.gmail.com>

Hi Adrian,

On Mon, 19 May 2025 at 09:54, John Paul Adrian Glaubitz
<[email protected]> wrote:
> On Mon, 2025-05-19 at 09:42 +0200, Geert Uytterhoeven wrote:
> > I expect (the history of) the gcc sources would tell you more about
> > the default alignment on other (legacy UNIX) OSes supporting m68k...
>
> Good idea. I will do that. My assumption is that on Linux, GCC developers
> actually just forgot to switch alignment from 2 to 4 bytes with the switch
> to ELF unlike NetBSD.

Linux/m68k ELF and a.out were deliberately kept compatible, and
coexisted together for a brief moment in time.

The NetBSD kernel and userland are a single system built from source
maintained together, so a recompile of everything was never considered
a big issue.

Gr{oetje,eeting}s,

                        Geert