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Subject: Re: [patch] Latency Tracer, voluntary-preempt-2.6.8-rc4-O6
From: Lee Revell <rlrevell@joe-job.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
       Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
       Florian Schmidt <mista.tapas@gmx.net>
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On Thu, 2004-08-12 at 22:39, Lee Revell wrote:
> On Thu, 2004-08-12 at 21:31, Lee Revell wrote:
> > On Thu, 2004-08-12 at 21:25, Lee Revell wrote:
> > > Does not compile.  For each module I get:
> > > 
> > 
> > Never mind, stupid mistake on my part.
> > 
> 
> Argh, this is actually a fatal bug, and not a mistake on my part. 
> mcount is an unknown symbol, and make modules_install does not like
> that.
> 
> I checked Module.symvers and it is not in there, but this seems to be a
> generated file, and I have no idea why mcount does not appear.
> 

I think appending this to i386_ksyms.c fixes the problem:

#ifdef CONFIG_PREEMPT_TIMING
EXPORT_SYMBOL(mcount);
#endif

Possibly that should be CONFIG_LATENCY_TRACE.

Lee