11 Apr
2003
11 Apr
'03
1:53 p.m.
Hi all,
I just received a query: did SunOS 3 have a working mmap(2)? My
vague memory says no, but I don't have access to a 3.5 box any more to
find out. Can anybody help out here?
Warren
14 Apr
14 Apr
8:43 a.m.
On 2003.04.11 15:53 Warren Toomey wrote:
I just received a query: did SunOS 3 have a working
mmap(2)?
I don't know. But you may ask Peter Koch, the director of the Sun3
Zoo:
http://www.sun3zoo.de/
Peter knows everything about Sun 3 hardware and has some in deep
knowledge of SunOS.
--
tschüß,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
16 Apr
16 Apr
9:56 p.m.
* Jochen Kunz wrote:
I don't know.
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. *But* it only mapped devices, particularly
framebuffers, where it was obviously very useful. SunOS 4 had a
fully-fledged mmap.
I am fairly sure that 4.2BSD had manual pages for mmap, but it didn't
work.
--tim
17 Apr
17 Apr
7:49 a.m.
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/
8111
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3 comments
3 participants
participants (3)
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Jochen Kunz -
Tim Bradshaw -
Warren Toomey