From: Paul Mundt <lethal@linux-sh.org>
To: Adrian Bunk <bunk@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>, linux-kernel@vger.kernel.org
Subject: Re: [RFC: 2.6 patch] add -fno-tree-scev-cprop to KBUILD_CFLAGS
Date: Sun, 11 Nov 2007 16:34:22 +0900 [thread overview]
Message-ID: <20071111073422.GA25323@linux-sh.org> (raw)
In-Reply-To: <20071111064829.GG21669@stusta.de>
On Sun, Nov 11, 2007 at 07:48:29AM +0100, Adrian Bunk wrote:
> But the kernel does (at least on some architectures) not link with
> libgcc or ship other code providing the required libgcc functions.
>
> Richard Guenther suggested in gcc bug #32044 to use -fno-tree-scev-cprop
> (new option in gcc 4.3) as a workaround and I confirmed that it fixes
> the compilation.
>
And some architectures do link it in, so the call to libgcc code doesn't
necessarily matter. Perhaps the architectures that don't link in libgcc
can turn this flag on conditionally, it shouldn't be forced on the
architectures that do link it in.
next prev parent reply other threads:[~2007-11-11 7:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-11 6:48 [RFC: 2.6 patch] add -fno-tree-scev-cprop to KBUILD_CFLAGS Adrian Bunk
2007-11-11 7:34 ` Paul Mundt [this message]
2007-11-12 6:14 ` the kernel, gcc and libgcc Adrian Bunk
2007-11-12 16:24 ` [RFC: 2.6 patch] add -fno-tree-scev-cprop to KBUILD_CFLAGS Bernd Schmidt
2007-11-12 16:40 ` Adrian Bunk
2007-11-12 22:07 ` Bernd Schmidt
2007-11-13 6:04 ` Adrian Bunk
2007-11-12 16:58 ` Jakub Jelinek
2007-11-13 11:39 ` Adrian Bunk
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