Re: 2.6.16-rc3-mm1: i386 compilation broken

From: Roman Zippel
Date: Wed Feb 15 2006 - 08:20:38 EST


Hi,

On Tue, 14 Feb 2006, Andi Kleen wrote:

> Ok then the -ffreestanding was apparently still needed on other architectures too.
> I guess that part of the patch can be just dropped.

The main problem is still the sprintf optimization, so
--fno-builtin-sprintf should fix it too.
That leaves only the single strchr, which is caused by an strpbrk
optimization in zoran_procfs.c, where we could use --fno-builtin-strpbrk
or simply directly replace that strpbrk with strchr.

If we really want to keep -ffreestanding, we have to rework how string.h
is organized to allow enabling builtin functions, but still provide fall
back functions. For example we had to add a lot of "#define foo
__builtin_foo" to linux/string.h and "#undef foo" to lib/string.c.

bye, Roman
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