From owner-freebsd-arch Thu Feb 15 2:39:25 2001 Delivered-To: freebsd-arch@freebsd.org Received: from mailman.zeta.org.au (mailman.zeta.org.au [203.26.10.16]) by hub.freebsd.org (Postfix) with ESMTP id 184B537B401 for ; Thu, 15 Feb 2001 02:39:21 -0800 (PST) Received: from bde.zeta.org.au (bde.zeta.org.au [203.2.228.102]) by mailman.zeta.org.au (8.9.3/8.8.7) with ESMTP id VAA30563; Thu, 15 Feb 2001 21:39:13 +1100 Date: Thu, 15 Feb 2001 21:38:45 +1100 (EST) From: Bruce Evans X-Sender: bde@besplex.bde.org To: Warner Losh Cc: arch@FreeBSD.ORG Subject: Re: The whole libc thing. In-Reply-To: <200102150903.f1F93rW62243@harmony.village.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 15 Feb 2001, Warner Losh wrote: > Green's solution of stealing a pointer and using that to "grow" FILE. > This would allow old binaris to keep working at the cost of binary > compatibility. There's a few extra indirections in this case, you'll > likely not be able to measure that performance loss. But it will work > with the case above and most of the others we threw at it. Pointers to FILEs can be converted to pointers extensions of FILEs using a hash lookup. This takes slightly more than a few indirections, but it doesn't cost binary compatibilty. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message