Re: [v4l-dvb-maintainer] [PATCH] Fix __ucmpdi2 in v4l2_norm_to_name()

From: Trent Piepho
Date: Thu Jan 04 2007 - 07:16:31 EST


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@xxxxxxxxxx>

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
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