linux-kernel - Re: kbuild: improved Section mismatch detection

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Message-ID: <20080121205601.GA9395@does.not.exist>
Date:	Mon, 21 Jan 2008 22:56:01 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux arch <linux-arch@...r.kernel.org>
Subject: Re: kbuild: improved Section mismatch detection

On Mon, Jan 21, 2008 at 09:31:17PM +0100, Sam Ravnborg wrote:
> On Mon, Jan 21, 2008 at 12:27:54AM +0200, Adrian Bunk wrote:
> > On Sun, Jan 20, 2008 at 09:05:27PM +0100, Sam Ravnborg wrote:
> > >...
> > > Adrian reminded us that KCFLAGS=-fno-inline told
> > > another story with more than 100 Section mismatch
> > > warnings on 64 bit x86 with an allyesconfig build.
> > >...
> > 
> > Not -fno-inline but -fno-inline-functions-called-once
> > (completely different option).
> 
> Do you know when gcc started to support
> -fno-inline-functions-called-once?
> 
> I do not have anything older than 3.4.5 build here.
> 
> I should have a gcc 3.2 (Documentation/Changes)
> but no at the moment.

The inline-functions-called-once optimization is only available with 
unit-at-a-time, and the -fno-inline-functions-called-once option is 
therefore present since gcc 3.4.

> 	Sam

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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