linux-kernel - Re: huge gcc 4.1.{0,1} _

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Message-ID: <20080502134349.GI17365@mit.edu>
Date:	Fri, 2 May 2008 09:43:49 -0400
From:	Theodore Tso <tytso@....EDU>
To:	Vegard Nossum <vegard.nossum@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tom Rini <trini@...nel.crashing.org>,
	torvalds@...ux-foundation.org, bunk@...nel.org,
	venkatesh.pallipadi@...el.com, davem@...emloft.net, mingo@...e.hu,
	tglx@...utronix.de, hpa@...or.com, linux-kernel@...r.kernel.org,
	suresh.b.siddha@...el.com
Subject: Re: huge gcc 4.1.{0,1} __weak problem

On Fri, May 02, 2008 at 09:18:10AM +0200, Vegard Nossum wrote:
> though these are largely untested with Linux Kernel. Most of them are
> gcc 3.4.5 (this should in theory compile the kernel correctly), though
> I found an e-mail from Ingo saying that you need the -tls versions for
> stackprotector to work correctly. This might be a good time to ask if
> I should be making gcc 4.1.2s instead. I need to recompile in either
> case.

Out of curiosity, are you using the stock gcc/binutils from the FSF,
or one of the distro toolchains?  When we were investigating which
compiler/toolchain to use for the LSB Sample Implementation, one of
the comments that I got from folks like Eric Troan from rPath and
others was that out-of-the-box compiler/toolchain had so many bugs,
particularly on non-x86 architectures, that they found they were much
better off using a distro-patched/bug-fixed compiler/toolchain and
treating that as the upstream.

There has been some requests to include cross-compilation
functionality into the LSB Build Environment, so I'd be interested in
seeing how your work has been going, and maybe there's some
opportunity to work together.  Is there a mailing list you have for
this project?

						- Ted
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