linux-kernel - Re: [x86 setup 16/33] String-handling functions for the new x86 setup code.

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Message-Id: <298A54C9-B331-4AB9-98B3-5C815B04381E@kernel.crashing.org>
Date:	Tue, 10 Jul 2007 22:10:01 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Jan Engelhardt <jengelh@...putergmbh.de>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	andi@...stfloor.org, akpm@...ux-foundation.org
Subject: Re: [x86 setup 16/33] String-handling functions for the new x86 setup code.

> Nope.  The builtins not only vary between gcc versions, but they also
> have a nasty tendency to generate calls to library functions,  
> sometimes
> libgcc functions.  Hence -ffreestanding.

-ffreestanding will still generate calls to libgcc functions.
-ffreestanding doesn't disable _all_ of the C library, either.


Segher

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