From owner-freebsd-emulation Wed Sep 10 16:45:06 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id QAA07337 for emulation-outgoing; Wed, 10 Sep 1997 16:45:06 -0700 (PDT) Received: from freebie.lemis.com (gregl1.lnk.telstra.net [139.130.136.133]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id QAA07320 for ; Wed, 10 Sep 1997 16:44:56 -0700 (PDT) Received: (from grog@localhost) by freebie.lemis.com (8.8.7/8.8.5) id JAA28111; Thu, 11 Sep 1997 09:14:02 +0930 (CST) Message-ID: <19970911091402.24274@lemis.com> Date: Thu, 11 Sep 1997 09:14:02 +0930 From: Greg Lehey To: Andrew Gallatin Cc: =?iso-8859-1?Q?S=F8ren_Schmidt?= , Mike Smith , jkh@time.cdrom.com, emulation@FreeBSD.ORG Subject: Re: Net posting: SCO gets Linux emulation References: <199709101405.AAA00810@word.smith.net.au> <199709101533.RAA11723@sos.freebsd.dk> <199709102240.SAA22196@hurricane.cs.duke.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Mailer: Mutt 0.81e In-Reply-To: <199709102240.SAA22196@hurricane.cs.duke.edu>; from Andrew Gallatin on Wed, Sep 10, 1997 at 06:40:38PM -0400 Organisation: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8250 Fax: +61-8-8388-8250 Mobile: +61-41-739-7062 WWW-Home-Page: http://www.lemis.com/~grog Fight-Spam-Now: http://www.cauce.org Sender: owner-freebsd-emulation@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Wed, Sep 10, 1997 at 06:40:38PM -0400, Andrew Gallatin wrote: > > Søren Schmidt writes: >> In reply to Mike Smith who wrote: >>>> Could be interesting and/or instructional, yes? >>> >>> Moderately. It's somewhat barer-bones than our support so far. >> >> It of virtually no use to us. I've looked closer, and there is >> ALOT they have to learn :) >> >>> This is all pretty unscientific; without sitting down and doing a >>> one-to-one comparison it's a bit difficult to convey the relative >>> "feel" of the two emulations. >> >> I'd say thiers is a "just get hello world running" type of emulator... > > Well, its somewhat interesting because it runs entirely in userland > and traps system calls via a SEGV handler. Ugh. Is this what we have come to expect of SCO? > And because of this, I imagine that its a good bit slower. Also, > their '$LINUX_ROOT' path remapping is interesting if only for its > flexibility, but their choice of what paths to remap is very > haphazard compared with the {Free,Net}BSD approach. Doesn't sound like a serious implementation effort to me. > BTW -- should anybody care, I just ported it to Solaris/x86 (which I'm > forced to deal with at work). I'd be happy to give out the diffs. > It runs Adobe Acrobat just fine (well, after installing the FreeBSD > linux-libs pkg ;-) Well, I suppose there's that advantage, that it's portable. Greg