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From: David Woodhouse <dwmw2@infradead.org>
To: Adrian Bunk <bunk@kernel.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	linux-arch@vger.kernel.org, Russell King <rmk@arm.linux.org.uk>,
	David Howells <dhowells@redhat.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Lennert Buytenhek <kernel@wantstofly.org>,
	Josh Boyer <jwboyer@linux.vnet.ibm.com>,
	Paul Mackerras <paulus@samba.org>,
	Andi Kleen <andi@firstfloor.org>,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	linux-embedded@vger.kernel.org, linux-kernel@vger.kernel.org,
	Tim Bird <tim.bird@am.sony.com>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	Dave Miller <davem@davemloft.net>
Subject: Re: [PATCH 14/23] make section names compatible with -ffunction-sections -fdata-sections: parisc
Date: Wed, 02 Jul 2008 15:57:42 +0100	[thread overview]
Message-ID: <1215010662.10393.459.camel@pmac.infradead.org> (raw)
In-Reply-To: <20080702145514.GC4196@cs181140183.pp.htv.fi>

On Wed, 2008-07-02 at 17:55 +0300, Adrian Bunk wrote:
> On Wed, Jul 02, 2008 at 09:41:47AM +0100, David Woodhouse wrote:
> > On Wed, 2008-07-02 at 02:00 +0200, Denys Vlasenko wrote:
> > > On Wednesday 02 July 2008 01:41, James Bottomley wrote:
> > > > On Wed, 2008-07-02 at 02:39 +0200, Denys Vlasenko wrote:
> > > > > The purpose of this patch is to make kernel buildable
> > > > > with "gcc -ffunction-sections -fdata-sections".
> > > > > This patch fixes parisc architecture.
> > > > > 
> > > > > Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
> > > > 
> > > > Um ... if you look at the Makefile you'll see we already build parisc
> > > > with -ffunction-sections; we have to: our relative jumps are too small
> > > > to guarantee finding the stubs in large files.
> > > > 
> > > > Since our text is -ffunction-sections compatible already, I question the
> > > > need for transformations like this:
> > 
> > We've been building FR-V kernels with --gc-sections for a long time,
> > too.
> >...
> 
> Is there any specific reason why it's not done in the upstream kernel?

Isn't it? I thought it was.

Or maybe we were only doing that before we added MMU support. I remember
the exception tables complicate matters a little.

-- 
dwmw2

  reply	other threads:[~2008-07-02 14:57 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-02  0:39 [PATCH 14/23] make section names compatible with -ffunction-sections -fdata-sections: parisc Denys Vlasenko
2008-07-01 23:41 ` James Bottomley
2008-07-02  0:00   ` Denys Vlasenko
2008-07-02  1:23     ` James Bottomley
2008-07-02  8:41     ` David Woodhouse
2008-07-02 14:55       ` Adrian Bunk
2008-07-02 14:57         ` David Woodhouse [this message]
2008-07-02 15:06           ` Adrian Bunk
2008-07-06 15:46 ` Denys Vlasenko
2008-07-06 16:19   ` James Bottomley

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