Improved INCLUDE_CONFIG_FILE

Wojciech A. Koszek wkoszek at freebsd.org
Sat Mar 24 23:02:38 UTC 2007


On Sun, Mar 25, 2007 at 08:00:41AM +1000, Peter Jeremy wrote:
> On 2007-Mar-24 15:32:00 +0100, Robert Watson <rwatson at freebsd.org> wrote:
> >On Sat, 24 Mar 2007, Wojciech A. Koszek wrote:
> >>I'd like to have this enabled by default, and I know there should be no 
> >>strong objections.
> >
> >I agree -- the memory used by it is very small compared to the amount of 
> >memory in modern systems, and the potential administrative benefit is very 
> >large.  As long as it remains an option, the embedded folk can turn it off 
> >easily.
> Ideally, we would include it in a .comment section that wasn't loaded.
> Unfortunately my ELF-foo isn't up to this (I've tried something similar
> many years ago and couldn't get the linker to DWIW).

In my current implementation, kernel configuration content is converted
to the string and is actually put into separate ELF section. However,
it's not .comment but a loadable section, since otherwise you wouldn't
be able to obtain the configuration of a running system.

-- 
Wojciech A. Koszek
wkoszek at FreeBSD.org
http://FreeBSD.czest.pl/dunstan/


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