From owner-freebsd-arch  Fri May  3  3:44:43 2002
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Date: Fri, 3 May 2002 03:48:38 -0700
From: Jonathan Mini <mini@freebsd.org>
To: Poul-Henning Kamp <phk@FreeBSD.ORG>
Cc: arch@FreeBSD.ORG
Subject: Re: syscall changes to deal with 32->64 changes.
Message-ID: <20020503034838.K56560@stylus.haikugeek.com>
References: <13810.1020419033@critter.freebsd.dk>
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In-Reply-To: <13810.1020419033@critter.freebsd.dk>; from phk@FreeBSD.ORG on Fri, May 03, 2002 at 11:43:53AM +0200
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Poul-Henning Kamp [phk@FreeBSD.ORG] wrote :

> 2. Is this a good occation to create a new syscall vector for
>    FreeBSD 5.0 rather than embellish the existing one with even
>    more variations ?

I believe this is the cleanest solution. It makes sense to me that the entry
point for a function would change when the symantics or parameters change.
Also, folding more variations into the existing syscalls strikes me as a
mess for binary compatability in the future. Especially since we're
dealing with a large number of syscalls here (changing the size of time_t is
going to hit a fair number, I would guess).

If we use a new syscall vector for the 64bit syscalls, we give ourselves the
opportunity to make a "clean break" away from the older ones.

-- 
Jonathan Mini <mini@freebsd.org>
http://www.haikugeek.com

"He who is not aware of his ignorance will be only misled by his knowledge."
                                                        -- Richard Whatley

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