From: Cliff Free <anaranjado@bellsouth.net>
To: Peter Fein <pfein@pobox.com>
Cc: Daniel Armyr <daniel.armyr@home.se>, gentoo-dev@gentoo.org
Subject: Re: [gentoo-dev] Kernel compiling respecting CFLAGS
Date: 14 Apr 2003 23:57:42 -0400 [thread overview]
Message-ID: <1050379062.23405.23.camel@Jester.poody.net> (raw)
In-Reply-To: <20030414103724.1e485f4f.pfein@pobox.com>
According to one of the "Linux Core Kernel Commentary" books, compiling
the kernel with the -O3 flag is a BAD idea. The kernel expects some
functions to be in certain places and using -O3 could cause them to be
inlined when they shouldn't, makeing the kernel unstable or broken.
On Mon, 2003-04-14 at 11:37, Peter Fein wrote:
> On Mon, 14 Apr 2003 23:18:59 +0800
> Daniel Armyr <daniel.armyr@home.se> wrote:
>
> > After quite a few compiles, It seems to me that the compilation of
> > kernels does not respect CFPAGS or CXXFLAGS settings. Is this true? If
> > so, is there a reason besides "If people compile the kernel with the
> > optimizations they want, their kernel will be mangled into oblivion."?
>
> La la la ....
>
> http://forums.gentoo.org/viewtopic.php?t=24849
--
Cliff Free <anaranjado@bellsouth.net>
--
gentoo-dev@gentoo.org mailing list
prev parent reply other threads:[~2003-04-15 3:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-14 15:18 [gentoo-dev] Kernel compiling respecting CFLAGS Daniel Armyr
2003-04-14 15:30 ` Jon Portnoy
2003-04-14 15:37 ` Peter Fein
2003-04-15 3:57 ` Cliff Free [this message]
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