From: Adrian Bunk <bunk@kernel.org>
To: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andi Kleen <ak@suse.de>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: unify x86 Makefile(s)
Date: Sat, 29 Dec 2007 00:13:24 +0200 [thread overview]
Message-ID: <20071228221324.GA9105@does.not.exist> (raw)
In-Reply-To: <20071228212341.GA6939@uranus.ravnborg.org>
On Fri, Dec 28, 2007 at 10:23:41PM +0100, Sam Ravnborg wrote:
>...
> Noteworthy remarks on the unification:
>...
> - -funit-at-a-time should be easy to unify but it looks like we have a bug
> in 32 bit. We only enable -funit-at-a-time for gcc less than 0400 if they
> support it
No, we _dis_able it on 32bit if a gcc < 4.0 supports it.
> (and I recall it is a gcc 4.00 feature). [-lt -> -gt]
>...
unit-at-a-time was introduced in upstream gcc 3.4 and backported to some
popular 3.3 x86_64 branch.
i386 and x86_64 go in exactly opposite directions regarding when to use
unit-at-a-time, but that was intentional and we should keep it that way.
> 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
next prev parent reply other threads:[~2007-12-28 22:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-28 21:23 [PATCH] x86: unify x86 Makefile(s) Sam Ravnborg
2007-12-28 22:13 ` Adrian Bunk [this message]
2007-12-29 2:14 ` Andi Kleen
2007-12-29 8:07 ` Adrian Bunk
2007-12-29 9:39 ` Sam Ravnborg
2007-12-29 9:52 ` Adrian Bunk
2007-12-29 12:16 ` Andi Kleen
2007-12-29 12:54 ` Adrian Bunk
2007-12-29 18:22 ` Sam Ravnborg
2007-12-29 18:24 ` Andi Kleen
2007-12-29 18:58 ` Sam Ravnborg
2007-12-29 21:17 ` Andi Kleen
2007-12-29 21:45 ` Adrian Bunk
2007-12-30 2:00 ` Andi Kleen
2007-12-30 11:01 ` Adrian Bunk
2007-12-29 2:22 ` Andi Kleen
2007-12-29 8:07 ` Sam Ravnborg
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