Date: Tue, 26 Nov 2002 23:29:04 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: phk@critter.freebsd.dk, rwatson@FreeBSD.ORG, arch@FreeBSD.ORG Subject: Re: ABIs and 5.x branch: freeze kernel module ABI at 5.0 or 5.1? Message-ID: <Pine.BSF.4.21.0211262328210.57127-100000@InterJet.elischer.org> In-Reply-To: <20021127.002657.21921523.imp@bsdimp.com>
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On Wed, 27 Nov 2002, M. Warner Losh wrote: > In message: <2079.1038351585@critter.freebsd.dk> > Poul-Henning Kamp <phk@critter.freebsd.dk> writes: > : In message <Pine.NEB.3.96L.1021126174032.88614J-100000@fledge.watson.org>, Robe > : rt Watson writes: > : > : >As such, I think a reasonable strategy would be to avoid exactly that: > : >rather than making guarantees about the ABI for 5.0, simply assert that > : >the ABI for kernel drivers will not be frozen until 5.1, so vendors should > : >be aware that they may have to rebuild their driver. We've already > : >indicated that the 5.0 release will be for "early adopters"--I want to > : >avoid having things stand in the way of kicking the 5.x branch into shape > : >in as much as is possible. Any thoughts? > : > : It's very simple in my mind: we only freeze ABI's on -stable branches > : (and we actually even violated that for 4-stable I belive). > : > : Whenever we branch a new -stable from -current, that's when we freeze > : the ABI's for that branch. > > That's my view as well. However, while we don't want to unduely > constrain the developers, I think that the project wants to say "don't > change the ABIs needlessly." Don't resort values just to resort them, > don't rearrange structure members just because you can, etc. If you > need to do it for a compelling reason, then that's OK. which is why I think we should reserve some fields now... > > Warner > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-arch" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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