linux-kernel - Re: RFC: drop support for gcc

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Message-ID: <20070821220952.GH30705@stusta.de>
Date:	Wed, 22 Aug 2007 00:09:52 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	James Bottomley <James.Bottomley@...elEye.com>
Cc:	Segher Boessenkool <segher@...nel.crashing.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jarek Poplawski <jarkao2@...pl>, Andi Kleen <ak@...e.de>,
	linux-arch@...r.kernel.org, Randy Dunlap <randy.dunlap@...cle.com>
Subject: Re: RFC: drop support for gcc < 4.0

On Tue, Aug 21, 2007 at 04:49:38PM -0500, James Bottomley wrote:
> On Tue, 2007-08-21 at 23:21 +0200, Adrian Bunk wrote:
> > On Tue, Aug 21, 2007 at 10:49:49PM +0200, Segher Boessenkool wrote:
> > >> How many people e.g. test -rc kernels compiled with gcc 3.2?
> > >
> > > Why would that matter?  It either works or not.  If it doesn't
> > > work, it can either be fixed, or support for that old compiler
> > > version can be removed.
> > 
> > One bug report "kernel doesn't work / crash / ... when compiled with
> > gcc 3.2, but works when compiled with gcc 4.2" will most likely be lost 
> > in the big pile of unhandled bugs, not cause the removal of gcc 3.2 
> > support...
> 
> What's the bugzilla or pointer to this report please?  Those of us who
> use gcc-3 as the default kernel compiler will take it seriously (if it
> looks to have an impact to our kernel builds) otherwise we can tell you
> it's unreproducible/not a problem etc.

This was an example in response to Segher's point we would remove 
support for a gcc version in such a case.

I remember we had such issues, but I don't find any pointer to a 
specific one at the moment.

I'll keep you informed when bug reports come in that only occur with 
older gcc versions and that aren't easily fixable.

> James

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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