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Date: Wed, 28 Nov 2007 20:17:58 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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Cc: jkoshy@FreeBSD.org, FreeBSD Current <freebsd-current@freebsd.org>,
	MQ <antinvidia@gmail.com>
Subject: Re: kldload hwpmc.ko fails with link_elf_obj: symbol
 linker_hwpmc_list_objects undefined
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Xin LI wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Dear colleagues,
> 
> With a fresh 7.0-BETA3 build it seems to be unable to load hwpmc.ko into
> kernel.  I got this:
> 
> link_elf_obj: symbol linker_hwpmc_list_objects undefined
> 
> and it seems that the symbol depends on HWPMC_HOOKS.  Shall we provide
> some mechanism to prevent building hwpmc.ko if it is not defined, or
> make it a default option for GENERIC?

Adding it in GENERIC is probably reasonable.

Kris