From: aap@papnet.eu (Angelo Papenhoff)
Subject: [TUHS] Source code abundance?
Date: Tue, 7 Mar 2017 07:52:59 +0100 [thread overview]
Message-ID: <20170307065259.GA31628@indra.papnet.eu> (raw)
In-Reply-To: <CAC20D2PAkyquuRWu+_bRe3yNc-Lp6OxyR6bJSZfhcdT5GzKUEA@mail.gmail.com>
On 06/03/17, Clem Cole wrote:
> On Mon, Mar 6, 2017 at 11:20 AM, Joerg Schilling <schily at schily.net> wrote:
>
> >
> > The kernel definitely looks like it was written from scratch.
> >
> > The fact that there are functions like "issig()" make it obvious that the
> > authors did have access to at least the V6 kernel via the Lions book.
>
>
> I can say for a fact that is not how it was. AIX was a port starting
> with AT&T code originally targeted to run on DEC and Intel Systems.
>
> As I said previously when I ran down the history of AIX, the developers had
> AT&T licenses. As I was reminded in an off line discussion with one of
> the IBM guys when I was checking to make sure, ISC did the original 386
> port for all of AT&T, Intel and IBM (one port - 3 checks). ISC also
> started the AIX port, with a number of the folks moving to LCC which was a
> step I left out in my previous email sorry, since it was implied when I
> said they started with that AT&T 386 stuff (which AT&T got from ISC).
> Bottom line.... it was not a rewrite, it was always a port.
>
> ...
>
> Companies like DEC, HP and IBM start working with one version of the kernel
> or worse yet, the command system and enhance it as they need. But time
> moves forward and their version and the rest of the world start to become
> different (branch/fork). Linux has been mostly able to keep the kernel
> the same, but not the command system.
I find this hard to believe. Of course code evolves, but I don't really
see anything that looks like original UNIX code in AIX 4.1.3. I would
expect at least a slight semblance. Had they really replaced (almost?)
all code by the time of AIX 4?
aap
next prev parent reply other threads:[~2017-03-07 6:52 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-01 18:01 Arthur Krewat
2017-03-01 18:07 ` Cory Smelosky
2017-03-01 18:13 ` Henry Bent
2017-03-01 18:27 ` Steve Nickolas
2017-03-01 19:18 ` Arthur Krewat
2017-03-01 19:25 ` Henry Bent
2017-03-01 19:29 ` Steve Nickolas
2017-03-01 19:32 ` Henry Bent
2017-03-01 19:49 ` Random832
2017-03-01 19:51 ` Warner Losh
2017-03-01 20:18 ` Joerg Schilling
2017-03-01 20:28 ` Clem Cole
2017-03-01 20:32 ` Warner Losh
2017-03-02 13:55 ` Paul Ruizendaal
2017-03-02 14:15 ` Jim Capp
2017-03-02 1:22 ` Jason Stevens
2017-03-02 6:50 ` Cory Smelosky
2017-03-02 13:36 ` Arthur Krewat
2017-03-04 3:29 ` Warren Toomey
2017-03-04 12:51 ` Arthur Krewat
2017-03-06 15:33 ` Angelo Papenhoff
2017-03-06 15:57 ` ron minnich
2017-03-06 16:20 ` Joerg Schilling
2017-03-06 22:52 ` Clem Cole
2017-03-07 6:52 ` Angelo Papenhoff [this message]
2017-03-07 13:25 ` Clem Cole
2017-03-06 16:21 ` Dan Cross
2017-03-06 16:45 ` Ron Natalie
2017-03-06 20:50 ` Dave Horsfall
2017-03-07 15:07 ` Ron Natalie
2017-03-07 15:13 ` Ron Natalie
2017-03-07 15:28 ` Larry McVoy
2017-03-07 19:44 ` Ron Natalie
2017-03-06 18:00 ` ron minnich
2017-03-06 18:22 ` Dan Cross
2017-03-06 19:24 ` Nemo
2017-03-06 16:48 ` Clem Cole
2017-03-06 15:57 ` Clem Cole
2017-03-06 22:29 ` ron minnich
2017-03-06 22:59 ` Clem Cole
2017-03-06 23:31 ` Steve Johnson
2017-03-06 23:32 ` Cory Smelosky
2017-03-06 23:44 ` Steve Johnson
2017-03-06 23:48 ` Larry McVoy
2017-03-06 23:53 ` Larry McVoy
2017-03-07 0:42 ` Warren Toomey
2017-03-07 0:33 ` Random832
2017-03-07 0:50 ` Clem Cole
2017-03-06 16:19 ` Jason Stevens
2017-03-06 19:06 ` Paul Ruizendaal
2017-03-06 20:32 ` ron minnich
2017-03-06 19:36 ` Warren Toomey
2017-03-06 20:17 ` Larry McVoy
2017-03-06 22:19 ` Warren Toomey
2017-03-03 20:06 Noel Chiappa
2017-03-03 20:28 ` Clem Cole
2017-03-03 23:12 ` Larry McVoy
2017-03-03 23:56 ` Wesley Parish
2017-03-04 0:29 ` Steve Nickolas
2017-03-04 1:01 ` Henry Bent
[not found] ` <CAH1jEzZPonQuq_4YJWN=cpaB9J8q2+TU-zRWx+Bg+29SUvfOVQ@mail.gmail.com>
2017-03-04 3:23 ` Nick Downing
2017-03-04 10:04 ` Joerg Schilling
2017-03-04 16:28 ` Clem Cole
2017-03-04 16:34 ` Clem Cole
2017-03-05 19:15 ` Joerg Schilling
2017-03-05 19:25 ` Warner Losh
2017-03-05 19:55 ` Clem Cole
2017-03-06 9:35 ` Joerg Schilling
2017-03-06 0:13 ` Josh Good
2017-03-05 15:44 ` Larry McVoy
2017-03-05 18:26 ` Joerg Schilling
2017-03-05 18:55 ` Larry McVoy
2017-03-05 19:10 ` Joerg Schilling
2017-03-05 21:36 ` Larry McVoy
2017-03-05 22:03 ` Mutiny
2017-03-04 15:39 Noel Chiappa
2017-03-04 16:02 ` Jason Stevens
2017-03-04 17:53 ` Jacob Goense
2017-03-04 18:37 ` Steve Nickolas
2017-03-04 18:38 ` Ron Natalie
2017-03-04 20:39 ` Cory Smelosky
2017-03-04 21:05 ` Jacob Goense
2017-03-05 17:54 ` Joerg Schilling
2017-03-05 18:24 ` Mutiny
2017-03-08 12:26 Doug McIlroy
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