linux-kernel - Re: 2.6.26-rc1 on x86: ld: warning: dot moved backwards before `.text'

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Message-ID: <482604D1.7020804@zytor.com>
Date:	Sat, 10 May 2008 13:25:53 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Mikael Pettersson <mikpe@...uu.se>, Pavel Machek <pavel@....cz>,
	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	tglx@...utronix.de, mingo@...hat.com, linux-kernel@...r.kernel.org,
	sam@...nborg.org
Subject: Re: 2.6.26-rc1 on x86: ld: warning: dot moved backwards before `.text'

Mikael Pettersson wrote:
> 
> The resulting kernel hasn't broken on me yet, however.
> 
> A search through the LKML archives showed that this was reported
> for 2.6.25-rc3-mm1, but I couldn't find any discussion about it
> after that:
> 
> <http://marc.info/?l=linux-kernel&m=120470303728010&w=2>
> 
> The .config causing this warning is available in
> <http://user.it.uu.se/~mikpe/linux/ale/config-2.6.26-rc1>
> 

This is because the organization of the file was changed, and the linker 
script wasn't changed to match:

SECTIONS
{
         . = HEADER_OFFSET;
         .header : {
                  *(.header)
         }

         . = 0;
         .text : {
                  *(.text*)
         }

This is crap; the sections should be listed *in order* so the linker can 
warn properly when something bad happens.

The code should be correct; reorganizing the linker script correctly 
should fix the problem.

	-hpa
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