Re: Question on BIGGEST_ALIGNMENT in GCC on NetBSD/m68k

John Paul Adrian Glaubitz <[email protected]> Wed, 18 Jun 2025 11:49:15 +0200

Newsgroups	gmane.os.netbsd.ports.m68k,gmane.linux.debian.ports.68k,gmane.linux.ports.m68k
Message-ID	<cebbe80cb85e004176ae2b566132d6d8e92e73db.camel@physik.fu-berlin.de>

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.
>=20
> 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.

Adrian

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