[Stable] Unable to / targeting a config whitelist

Nelson Castillo nelsoneci at gmail.com
Fri Oct 10 16:30:52 CEST 2008


On Fri, Oct 10, 2008 at 2:24 AM, Andy Green <andy at openmoko.com> wrote:

Hello Andy.

> Werner Almesberger wrote:
>> Andy Green wrote:
>>> It seems some other folks are interested to take care about making sure
>>> we are clean for config variations, I'll leave this to them.
>>
>> Sounds like a good plan. Since Nelson should soon become the one who
>> will find config conflicts long before anyone else would, I think it
>
> Being reasonably config-clean is important, but it's basically the
> number of possible config combinations is immense and sitting there
> studying them all doesn't really move us or Nelson on.

I'm sure we'll come up with something fast. I know I should start
doing "real work" soon :-)

> Only a small subset of the combinations are actually realistic, I think
> Nelson's plan of having a whitelist of configs is probably the most
> workable.  It also has the advantage that he can set it up and move on
> to more interesting (for him and us) things, we can just tack configs on
> the list as we find new reasonable cases for them.

Well, we could do something like:

# Permute
CONFIG_OPTION_A=y

And run a small preprocessor to select the permutations we actually
care about. We can use a hash to avoid duplicates.

But let's start with the white list. I'll check the project Sven sent.

Regards,
Nelson.-



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