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Date: Wed, 2 Jan 2002 15:50:04 -0700
From: Tom Rini <trini@kernel.crashing.org>
To: Richard Henderson <rth@redhat.com>, Momchil Velikov <velco@fadata.bg>,
        linux-kernel@vger.kernel.org, gcc@gcc.gnu.org,
        linuxppc-dev@lists.linuxppc.org,
        Franz Sirl <Franz.Sirl-kernel@lauterbach.com>,
        Paul Mackerras <paulus@samba.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Corey Minyard <minyard@acm.org>
Subject: Re: [PATCH] C undefined behavior fix
Message-ID: <20020102225004.GN1803@cpe-24-221-152-185.az.sprintbbd.net>
In-Reply-To: <87g05py8qq.fsf@fadata.bg> <20020102190910.GG1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102133632.C10362@redhat.com> <20020102220548.GL1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102142712.B10474@redhat.com> <20020102223557.GM1803@cpe-24-221-152-185.az.sprintbbd.net> <20020102144435.A10500@redhat.com>
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On Wed, Jan 02, 2002 at 02:44:35PM -0800, Richard Henderson wrote:
> On Wed, Jan 02, 2002 at 03:35:57PM -0700, Tom Rini wrote:
> > That's not really an option.
> 
> Oh come on.  It shouldn't take very much code at all to properly
> relocate the binary.  You can use either -fpic or -mrelocatable
> to get hold of the set of addresses in question.

Have you looked at all of the code in question?  We're doing a lot of things
before we properly relocate ourself.  And as long as things aren't being
optimized away, it just works.

And the other thing is if we want gcc-3.0 to produce a good kernel on
PPC in 2.4.x, the kernel-side changes should be as minimal as possible.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/
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