From: David Woodhouse <dwmw2@infradead.org>
To: Oleg Verych <olecom@gmail.com>
Cc: linux-embedded <linux-embedded@vger.kernel.org>,
linux-kbuild@vger.kernel.org, segher@kernel.crashing.org
Subject: Re: about size optimizations (Re: Not as much ccache win as I expected)
Date: Sat, 14 Jun 2008 08:43:23 +0100 [thread overview]
Message-ID: <1213429403.26255.298.camel@pmac.infradead.org> (raw)
In-Reply-To: <8499950a0806131452j5dc9574dk336e9e06ee9e1785@mail.gmail.com>
On Fri, 2008-06-13 at 22:52 +0100, Oleg Verych wrote:
> Using same `gcc -E` principle, I once had a dream to create
> build with something like "whole-kernel-at-time" optimising
> compiler option:
Doing it for the whole kernel probably doesn't buy you a whole lot more
than doing it a bit more selectively, which is what I was doing in
http://lkml.org/lkml/2006/8/24/212
I think Segher has been playing with it a bit recently, and confirms my
suspicion that combining kernel/ with arch/$ARCH/kernel, and mm/ with
arch/$ARCH/mm, is also a big win.
The GCC problems should mostly be fixed now, I think -- we just need to
have another go at doing the Kbuild side of it properly.
--
dwmw2
next prev parent reply other threads:[~2008-06-14 7:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-13 21:52 about size optimizations (Re: Not as much ccache win as I expected) Oleg Verych
2008-06-14 7:43 ` David Woodhouse [this message]
2008-06-14 9:48 ` Adrian Bunk
2008-06-14 9:56 ` Oleg Verych
2008-06-14 10:05 ` David Woodhouse
2008-06-14 10:27 ` Oleg Verych
2008-06-15 16:00 ` Jamie Lokier
2008-06-15 16:56 ` Oleg Verych
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