From: Adrian Bunk <bunk@stusta.de>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [2.6 patch] Use -ffreestanding? (fwd)
Date: Mon, 22 Nov 2004 13:48:55 +0100 [thread overview]
Message-ID: <20041122124855.GK3007@stusta.de> (raw)
In-Reply-To: <Pine.LNX.4.53.0411220934480.21333@yvahk01.tjqt.qr>
On Mon, Nov 22, 2004 at 09:36:15AM +0100, Jan Engelhardt wrote:
> >Hi Andrew,
> >
> >for the kernel, it would be logical to use -ffreestanding. The kernel is
> >not a hosted environment with a standard C library.
>
> Note the GCC docs:
>
> Assert that compilation takes place in a freestanding environment. This
> implies -fno-builtin. [...]
>
> This will break a lot of code, since there are many thing that depend upon GCC
> builtin magic AFAICS.
>...
Which code in the kernel is broken by this change?
Note that explicitely using a gcc builtin is still possible.
> Jan Engelhardt
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
prev parent reply other threads:[~2004-11-22 12:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-22 5:49 Adrian Bunk
2004-11-22 6:10 ` Linus Torvalds
2004-11-22 12:46 ` Adrian Bunk
2004-11-22 8:36 ` Jan Engelhardt
2004-11-22 12:48 ` Adrian Bunk [this message]
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