From: Randolph Chung <tausq@debian.org>
To: linux-ia64@vger.kernel.org
Subject: Re: Linux 2.6.6 link error when removing -O2 compilation flags
Date: Thu, 27 May 2004 15:00:48 +0000 [thread overview]
Message-ID: <20040527150048.GP7207@tausq.org> (raw)
In-Reply-To: <40B601DC.7090508@Ext.Bull.Net>
> I was trying to compile my 2.6.6 linux kernel on an IA64
> machine
> deactivating optimization options (in fact removing "-02" and "-Os" flags
> in Makefile and arch/ia64/Makefile).
> I've done this test with a gcc-2.96, gcc-3.3.3 and gcc-3.4-20040514
> (and removing in this last case "-frename-registers" option).
> Has someone else already encountered such a problem ?
yes, you cannot do that. The kernel relies on some optimizations being
done by the compiler; for example it assumes certain amount of inlining
that happens with optimization enabled.
randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
prev parent reply other threads:[~2004-05-27 15:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-27 14:57 Linux 2.6.6 link error when removing -O2 compilation flags Francois Wellenreiter
2004-05-27 15:00 ` Randolph Chung [this message]
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