linux-kernel - Re: [v4l-dvb-maintainer] [PATCH] Fix __ucmpdi2 in v4l2_norm_to

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Date:	Thu, 04 Jan 2007 13:53:14 +0100
From:	Stelian Pop <stelian@...ies.net>
To:	Trent Piepho <xyzzy@...akeasy.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...l.org>,
	v4l-dvb-maintainer@...uxtv.org, mchehab@...radead.org
Subject: Re: [v4l-dvb-maintainer] [PATCH] Fix __ucmpdi2 in
	v4l2_norm_to_name()

Le jeudi 04 janvier 2007 à 04:09 -0800, Trent Piepho a écrit :
> On Thu, 4 Jan 2007, Stelian Pop wrote:
> > This patch replaces a switch statement using 64 bit values with the
> > if/else equivalent in order to prevent a call __ucmpdi2 generated by
> > some versions of gcc (verified with gcc-4.1.2 20060928):
> >
> > 	drivers/built-in.o: In function `v4l2_norm_to_name':
> > 	(.text+0x71100): undefined reference to `__ucmpdi2'
> >
> > Signed-off-by: Stelian Pop <stelian@...ies.net>
> 
> It looks like there is a much better way to handle this problem here:
> http://lkml.org/lkml/2006/12/17/46
> 
> Basically:
> A. Fix gcc so it doesn't call in __ucmpdi2 (already fixed?)
> B. Link in __ucmpdi2 from libgcc
> C. Write arch specific code to provide __ucmpdi2

Indeed, I didn't see that thread.

Linus, just make sure you apply a fix for this problem before 2.4.20
goes final...

Thanks and sorry for the noise.

Stelian.
-- 
Stelian Pop <stelian@...ies.net>

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