From: jkunz@unixag-kl.fh-kl.de (Jochen Kunz)
Subject: [TUHS] Did SunOS 3 have mmap(2)?
Date: Thu, 17 Apr 2003 09:49:29 +0200 [thread overview]
Message-ID: <20030417094929.C173457@MissSophie.unixag-kl.fh-kl.de> (raw)
In-Reply-To: <16029.53664.37717.64377@cley.com>; from tfb@cley.com on Wed, Apr 16, 2003 at 23:56:48 CEST
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On 2003.04.16 23:56 Tim Bradshaw wrote:
> I've just asked someone who knows, and he elaborated my very vague
> memory: yes it did, and in fact there was mmap right back, and beyond,
> the start of SunOS.
Wasn't some mmap like functionality a central concept of MULTICS long
bevore UNIX was born? (I should read that article about MULTICS on the
web again.)
> *But* it only mapped devices, particularly
> framebuffers, where it was obviously very useful.
> SunOS 4 had a fully-fledged mmap.
... mostly for implementing shared libs. (?)
> I am fairly sure that 4.2BSD had manual pages for mmap, but it didn't
> work.
AFAIK BSD got a mmap with the MACH-VM in 4.3BSD-Reno. The old VAX-VM had
no mmap.
--
tschüß,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
prev parent reply other threads:[~2003-04-17 7:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-11 13:53 Warren Toomey
2003-04-14 8:43 ` Jochen Kunz
2003-04-16 21:56 ` Tim Bradshaw
2003-04-17 7:49 ` Jochen Kunz [this message]
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