Date: Thu, 11 Sep 1997 09:14:02 +0930 From: Greg Lehey <grog@lemis.com> To: Andrew Gallatin <gallatin@CS.Duke.EDU> Cc: =?iso-8859-1?Q?S=F8ren_Schmidt?= <sos@sos.freebsd.dk>, Mike Smith <mike@smith.net.au>, jkh@time.cdrom.com, emulation@FreeBSD.ORG Subject: Re: Net posting: SCO gets Linux emulation Message-ID: <19970911091402.24274@lemis.com> In-Reply-To: <199709102240.SAA22196@hurricane.cs.duke.edu>; from Andrew Gallatin on Wed, Sep 10, 1997 at 06:40:38PM -0400 References: <199709101405.AAA00810@word.smith.net.au> <199709101533.RAA11723@sos.freebsd.dk> <199709102240.SAA22196@hurricane.cs.duke.edu>
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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
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