linux-kernel - Re: [PATCH 1/2] Suppress A.OUT library support in ELF binfmt if !CONFIG_BINFMT

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Message-Id: <1194473220.11490.93.camel@pmac.infradead.org>
Date:	Wed, 07 Nov 2007 22:07:00 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	David Howells <dhowells@...hat.com>
Cc:	torvalds@...l.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-am33-list@...hat.com
Subject: Re: [PATCH 1/2] Suppress A.OUT library support in ELF binfmt if
	!CONFIG_BINFMT_AOUT [try #3]

On Wed, 2007-11-07 at 17:43 +0000, David Howells wrote:
> --- a/include/linux/a.out.h
> +++ b/include/linux/a.out.h
> @@ -1,6 +1,11 @@
>  #ifndef __A_OUT_GNU_H__
>  #define __A_OUT_GNU_H__
>  
> +#if defined(CONFIG_BINFMT_AOUT) || \
> +       defined(CONFIG_BINFMT_AOUT_MODULE) || \
> +       defined(CONFIG_IA32_AOUT) || \
> +       defined(CONFIG_IA32_AOUT_MODULE)
> +
>  #define __GNU_EXEC_MACROS__
>  
>  #ifndef __STRUCT_EXEC_OVERRIDE__

Ew, no. This is horridly broken. You should never use CONFIG_xxx_MODULE
in the static kernel at all -- and you should _especially_ not be using
it in header files which are exported to userspace.

This abomination certainly doesn't seem to have any direct relation to
mn10300 support -- I think all you really need there is not to attempt
to export {asm,linux}/a.out.h if asm/a.out.h doesn't exist, which is
something you haven't attempted here anyway.

-- 
dwmw2

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