Date: 10 Feb 98 01:33:52 +0530 From: "Atish" <ACHOWDHU.IN.ORACLE.COM.ofcmail@in.oracle.com> To: hackers@FreeBSD.ORG Subject: Auto-reply: Re: Learning the ins & outs of FreeBSD Message-ID: <199802091941.OAA13096@insun023>
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Hi,
I am on leave till mid Feb'98. Will try to get back to you as soon as
possible.
-regards
Atish
#..........................................................................#=
>From : Atish Datta Chowdhury
Oracle Software Development Centre
India Development Centre
150 Embassy Point
Bangalore 560001
Telephone: (088) 2256099 Extn:496/atish
e-mail: achowdhu@in.oracle.com
#..........................................................................#=
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Date: 10 Feb 98 00:49:46
From:Sean Eric Fagan <sef@kithrup.com>
To:hackers@FreeBSD.ORG
Subject:Re: Learning the ins & outs of FreeBSD
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References:Your message of "Mon, 09 Feb 1998 13:43:51 EST." <Pine.BSF.3.91.980209132432.1069A-100000@logrus.chaosphere.com>
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In article <25466.887050372.kithrup.freebsd.hackers@time.cdrom.com> Jordan
writes:
>> experience with C and have begun to take the masochistic approach to
>> learning about the inner workings of FreeBSD by reading snippets of code
>> from /usr/src, but there has got to be a more thorough, if not easier,
>> approach.
>Erm, no actually. The approach you've taken isn't the masochistic one
>at all, it's really the ONLY approach to take. You think people have
>time to *write* about this stuff and work on it too? ;-) It's enough
>work just keeping /usr/src up to date for most developers, and I'm
>afraid that reading the code IS the way to do what you want to do.
Well, that's not *completely* true :).
First, anyone interested in kernel hacking should probably read one or more
of
the following books:
The Design and Implementation of the UNIX Operating System, by
Maurice J. Bach
The Design and Implementation of the 4.3BSD Operating System, by
Marshall Kirk McKusick et al
The Design and Implementation of the 4.4BSD Operating Sytem, by
Marshall Kirk McKusick et al
A Commentary on the UNIX Operatin System, by John Lions
(recently republished, although I don't know if
the title is the same)
For those who are in the San Francisco Bay Area, Kirk McKusick also
periodically offers an excellent course that walks through the kernel
sources,
and explains what's going on at various bits. (You should have read at leas=
t
one of the above books before taking the "advanced" course, although I don't
know what the difference between teh "beginner" and "advanced" courses is.)
Lastly (plug plug) there's an article in the current (March, 1998) issue of
Dr
Dobb's Journal that describes the process of adding a feature to the kernel,
and I think does a fairly good job of explaining it as long as the reader ha=
s
experience in programmin in C.
And, for the curious... I read the Bach book, and then started playing aroun=
d
with the kernel code (specifically, I first added ACL support to the Xenix
kernel, and then got job control working in SCO SysVr3.2). I've since read
the rest of the books above, and taken Kirk's course (not necessarily in that
order).
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