From owner-freebsd-hackers  Thu Mar  6  8:41:29 2003
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Date: Thu, 06 Mar 2003 09:41:04 -0700 (MST)
Message-Id: <20030306.094104.08396502.imp@bsdimp.com>
To: peterjeremy@optushome.com.au
Cc: hackers@FreeBSD.ORG, smkelly@zombie.org
Subject: Re: Smarter kernel modules?
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <20030306075225.GB93350@cirb503493.alcatel.com.au>
References: <20030305.215901.36360277.imp@bsdimp.com>
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In message: <20030306075225.GB93350@cirb503493.alcatel.com.au>
            Peter Jeremy <peterjeremy@optushome.com.au> writes:
: Disadvantages:
: - Needs grunt-work to write the #defines
: - Kernel symbols reported by nm(1) look strange (unless we patch
:   binutils to understand our versioning scheme).
: - May present problems to '##' built symbols.

History has shown that people suck at keeping such a complex scheme up
to date.  Also, it versions functions, but not datta structures.  Data
strucutre changes are the number 1 cause of ABI breakage we've had
over the last 5 years.

Warner

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