Date: Mon, 5 May 2003 11:14:17 +0200 (CEST) From: Harti Brandt <brandt@fokus.fraunhofer.de> To: "Jacques A. Vidrine" <nectar@freebsd.org> Cc: freebsd-arch@freebsd.org Subject: Re: Re: `Hiding' libc symbols Message-ID: <20030505110601.H53365@beagle.fokus.fraunhofer.de> In-Reply-To: <20030501191027.GA53801@madman.celabo.org> References: <20030501182820.GA53641@madman.celabo.org> <XFMail.20030501144502.jhb@FreeBSD.org> <20030501191027.GA53801@madman.celabo.org>
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On Thu, 1 May 2003, Jacques A. Vidrine wrote: JAV> (c) Hide all symbols, except those that are likely to JAV> be candidates to be overridden. malloc/free seem JAV> to be the only ones here. As far as I know, all programs from J.Schilling (cdrecord, star, ...) carry their own printf (and a good other half of libc). I suppose there are others that do this. While overriding libc functions is not exactly standard supported (as far as I understand), it has been used ever since. If there are un-overridable functions (for whatever reasons) they should be documented somewhere (say in the man page of that function). We should not expect application writers/porters to dig around in libc internals. harti -- harti brandt, http://www.fokus.fraunhofer.de/research/cc/cats/employees/hartmut.brandt/private brandt@fokus.fraunhofer.de, harti@freebsd.org
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