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Date: Wed, 06 Feb 2002 16:32:42 +0000
From: Padraig Brady <padraig@antefacto.com>
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To: "Randy.Dunlap" <rddunlap@osdl.org>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>, Christoph Rohland <cr@sap.com>,
        Andries.Brouwer@cwi.nl, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: Re: How to check the kernel compile options ?
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Randy.Dunlap wrote:
> On Wed, 6 Feb 2002, Alan Cox wrote:
> 
> | > > If you are going to cat it onto the end of the kernel image just
> | > > mark it __initdata and shove a known symbol name on it. It'll get
> | > > dumped out of memory and you can find it trivially by using tools on
> | > > the binary
> | >
> | > What about putting such info into a (swappable) tmpfs file with
> | > shmem_file_setup?
> |
> | That is indeed an extremely cunning plan. Paticularly as /proc/config can
> | be a symlink to it
> | -
> 
> I still prefer your suggestion to append it to the kernel image
> as __initdata so that it's discarded from memory but can be
> read with some tool(s).
> 
> 

I aggree. You shouldn't need the kernel running to be able
to read it's config settings from it. You could do the
equivalent of the following at the end of the build.

<.config sed -e '/^#/d' -e '/^[    ]*$/d' | gzip -9 >> image

The sed scripts strip comments and blank lines.

Padraig.

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