[Buildroot] Full config files for each board are yucky.

[Buildroot] Full config files for each board are yucky.

[Mitch Davis]

On Tue, Jul 13, 2010 at 7:30 AM, Luca Ceresoli <luca@lucaceresoli.net> wrote:
> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
> ---
> ?Config.in ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? | ? ?4 ++--
> ?configs/arm_toolchain_defconfig ? ? ? ? ? | ? ?2 +-
> ?configs/at91rm9200df_defconfig ? ? ? ? ? ?| ? ?2 +-
> ?configs/at91rm9200df_ext_bare_defconfig ? | ? ?2 +-
> ?configs/at91rm9200df_ext_defconfig ? ? ? ?| ? ?2 +-
> ?configs/at91sam9260dfc_defconfig ? ? ? ? ?| ? ?2 +-
> ?configs/at91sam9260dfc_ext_bare_defconfig | ? ?2 +-
> ?configs/at91sam9260dfc_ext_defconfig ? ? ?| ? ?2 +-
> ?configs/at91sam9261ek_defconfig ? ? ? ? ? | ? ?2 +-
> ?configs/at91sam9261ek_ext_bare_defconfig ?| ? ?2 +-
> ?configs/at91sam9261ek_ext_defconfig ? ? ? | ? ?2 +-
> ?configs/at91sam9263ek_defconfig ? ? ? ? ? | ? ?2 +-
> ?configs/at91sam9263ek_ext_bare_defconfig ?| ? ?2 +-
> ?configs/at91sam9263ek_ext_defconfig ? ? ? | ? ?2 +-
> ?configs/at91sam9g20dfc_defconfig ? ? ? ? ?| ? ?2 +-
> ?configs/at91sam9g20dfc_ext_bare_defconfig | ? ?2 +-
> ?configs/at91sam9g20dfc_ext_defconfig ? ? ?| ? ?2 +-
> ?configs/atngw100-base_defconfig ? ? ? ? ? | ? ?2 +-
> ?configs/atngw100_defconfig ? ? ? ? ? ? ? ?| ? ?2 +-
> ?configs/atstk1005_defconfig ? ? ? ? ? ? ? | ? ?2 +-
> ?configs/atstk100x_defconfig ? ? ? ? ? ? ? | ? ?2 +-
> ?configs/i386_defconfig ? ? ? ? ? ? ? ? ? ?| ? ?2 +-
> ?configs/i686_defconfig ? ? ? ? ? ? ? ? ? ?| ? ?2 +-
> ?configs/integrator926_defconfig ? ? ? ? ? | ? ?2 +-
> ?configs/integrator926_huge_defconfig ? ? ?| ? ?2 +-
> ?configs/kb9202_defconfig ? ? ? ? ? ? ? ? ?| ? ?2 +-
> ?configs/v100sc2_defconfig ? ? ? ? ? ? ? ? | ? ?2 +-
> ?27 files changed, 28 insertions(+), 28 deletions(-)

<rant>That *every* defconfig file needs to be changed indicates a
failing of the present system, where we have pre-canned config files
for every board, that need ongoing maintenance whenever something in
the Kconfig files change.</rant>

I have an alternative config system where every board inherits config
options from something else (ultimately the defaults in the config
system), then a board can turn on and off and set options which are
relevant to that board.  BR2_GIT would only need to be changed in one
place, if at all.  I'll clean it up and publish it, if anyone's
interested...

Mitch.

[Buildroot] Full config files for each board are yucky.

[Peter Korsgaard]

>>>>> "Mitch" == Mitch Davis <mjd+buildroot@afork.com> writes:

Hi,

 Mitch> <rant>That *every* defconfig file needs to be changed indicates a
 Mitch> failing of the present system, where we have pre-canned config files
 Mitch> for every board, that need ongoing maintenance whenever something in
 Mitch> the Kconfig files change.</rant>

Agreed, I was thinking of running Uwe's reduce script:

http://lkml.org/lkml/2010/7/13/134

 Mitch> I have an alternative config system where every board inherits config
 Mitch> options from something else (ultimately the defaults in the config
 Mitch> system), then a board can turn on and off and set options which are
 Mitch> relevant to that board.  BR2_GIT would only need to be changed in one
 Mitch> place, if at all.  I'll clean it up and publish it, if anyone's
 Mitch> interested...

What would that buy us compared to Uwe's script? Would that involve
significant changes to package/config making updates harder?

-- 
Bye, Peter Korsgaard