linux-kernel - Re: Lots of unexpected non-allocatable section warnings

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Message-ID: <m21vr6124v.fsf@igel.home>
Date:	Sun, 03 May 2009 20:18:24 +0200
From:	Andreas Schwab <schwab@...ux-m68k.org>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Sam Ravnborg <sam@...nborg.org>, Anders Kaseorg <andersk@....edu>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Lots of unexpected non-allocatable section warnings

Jean Delvare <khali@...ux-fr.org> writes:

> Hi Sam,
>
> Thanks for your swift answer.
>
> On Sun, 3 May 2009 12:30:10 +0200, Sam Ravnborg wrote:
>> On Sun, May 03, 2009 at 11:05:17AM +0200, Jean Delvare wrote:
>> > Hi Anders, Sam,
>> > 
>> > After your fix "kbuild, modpost: Check the section flags, to catch
>> > missing ax/aw", I get a lot of warnings like the following during
>> > modpost on x86-64:
>> > 
>> > WARNING: arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.o (.comment.SUSE.OPTs): unexpected non-allocatable section.
>> > Did you forget to use "ax"/"aw" in a .S file?
>> > Note that for example <linux/init.h> contains
>> > section definitions for use in .S files.
>> > 
>> > Apparently there's one such warning for every module on my system, that
>> > is, 907. That's a lot, and pretty annoying. How do I solve this? I don't
>> > know much about assembly.
>> 
>> Cannot reproduce here..
>
> Given the name of the section, I presume it is somewhat SUSE-specific.
> I'm running openSUSE 11.1.

The section is created by the SUSE compiler and contains a summary of
the options used for compiling the file.  It should be treated like a
.comment section.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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