From owner-freebsd-current  Tue Feb 19 21: 8:49 2002
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Date: Wed, 20 Feb 2002 14:08:41 +0900
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From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To: Mike Smith <msmith@hub.freebsd.org>
Cc: current@FreeBSD.ORG
Subject: Re: HEADS UP: module build process changed
In-Reply-To: <20020110173500.A10785@hub.freebsd.org>
References: <20020110173500.A10785@hub.freebsd.org>
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At Thu, 10 Jan 2002 17:35:00 -0800,
Mike Smith wrote:
> In order to deal with this problem, I have changed the module build
> process so that symbols global to the module are converted to local
> symbols when the module is linked into the .kld/,ko file.  In order
> to allow modules that intentionally export symbols to continue to do
> so, a new module makefile variable 'EXPORT_SYMS' has been implemented.

Hi Mike,

I don' think EXPORT_SYMS works right.

EXPORT_SYMS= fw_asybusy \
        fw_asyreq       \
        fw_bindadd      \
        getcsrdata      \
        fw_xfer_alloc   \
        fw_xfer_free    \


By this configuration, /sys/conf/kmod.mk generates space separated
list to export_syms like this:

fw_asybusy fw_asyreq fw_bindadd getcsrdata fw_xfer_alloc fw_xfer_free

But /sys/conf/kmod_syms.awk expects 'line break' separated list.
And we cannot export any symbols.

For example, 
Remove ppbus/plip/lpt/ppi/ppc from you kernel config.
Can you load ppbus and it's childen by kldload?

Even if this problem is fixed, I suppose another problem there.
Even if I set EXPORT_SYMS=YES, I cannot resolv module symbols.
e.g.

kldload module1
kldload module2

module2 cannnot resolv symbols in module1.

-stable doesn't have this problem.

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html


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