From: Robert Love <rml@tech9.net>
To: Valdis.Kletnieks@vt.edu
Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>,
Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: -mregparm=3 (was Re: [PATCH] i386 do_machine_check() is redundant.
Date: Tue, 30 Sep 2003 00:55:13 -0400 [thread overview]
Message-ID: <1064897712.4568.32.camel@localhost> (raw)
In-Reply-To: <200309300449.h8U4nSvl002308@turing-police.cc.vt.edu>
On Tue, 2003-09-30 at 00:49, Valdis.Kletnieks@vt.edu wrote:
> I discovered that -test6-mm1 doesn't build with -ffreestanding with gcc 3.3.1,
> for an odd reason: when I specify -ffreestanding, it generates 'call abs' calls
> where it was able to do it inline otherwise. -ffreestanding says there's no library,
> so it can't inline the library call (which leaves no external call to 'abs()').
Hm, we may need to do something like:
#define abs(n) __builtin_abs((n))
because -ffreestanding implies -fno-builtin, which disables use of
built-in functions that do not begin with __builtin.
Robert Love
next prev parent reply other threads:[~2003-09-30 4:55 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-28 16:29 [PATCH] i386 do_machine_check() is redundant Brian Gerst
2003-09-28 18:24 ` Linus Torvalds
2003-09-28 18:30 ` Brian Gerst
2003-09-28 18:34 ` Linus Torvalds
2003-09-28 18:44 ` Brian Gerst
2003-09-28 19:04 ` Arjan van de Ven
2003-09-29 18:46 ` Linus Torvalds
2003-09-29 19:23 ` Jeff Garzik
2003-09-29 19:54 ` -mregparm=3 (was " Valdis.Kletnieks
2003-09-30 8:28 ` Helge Hafting
2003-09-30 15:29 ` Valdis.Kletnieks
2003-09-30 15:48 ` Linus Torvalds
2003-09-29 20:20 ` Mikulas Patocka
2003-09-29 20:26 ` Daniel Jacobowitz
2003-09-29 21:36 ` Mikulas Patocka
2003-09-29 21:40 ` Daniel Jacobowitz
2003-09-29 21:43 ` Mikulas Patocka
2003-09-29 21:48 ` Jakub Jelinek
2003-09-30 0:24 ` Jamie Lokier
2003-09-30 4:49 ` Valdis.Kletnieks
2003-09-30 4:55 ` Robert Love [this message]
2003-09-30 14:37 ` Valdis.Kletnieks
2003-09-30 15:48 ` Robert Love
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