[coreboot] Request for comments: v3 config script

[Jordan Crouse]

We have had a configuration problem smoldering for some time in 
buildrom.  Basically, the problem is that we sometimes want buildrom to 
have some sort of control over the configuration of coreboot v2 and v3. 
The classic example is compression - buildrom allows the user to choose 
if they want to compress with LZMA or not - the problem is that this 
then needs to be communicated to coreboot v2 or v3, which is difficult 
to do with static configuration files.  So we need a way to massage the 
v2 and v3 configuration files based on information from buildrom.

Attached is a quick script that I wrote this morning that starts to go 
down that path for v3.  Given a trigger item in the buildrom config (in 
this case CONFIG_USE_LZMA), it adds the appropriate config options to 
the v3 config which is piped in through stdin. The result is a fully 
operational config file that can be run through oldconfig in the v3 build.

I'm sending this out for comments - clearly this is an early hack, and 
there will be refinements made.  And v3 is the easy case - v2 is going 
to be a bear, and unfortunately v2 is the system that needs this the most.

So comments welcome, and please excuse my lack of perl fu.

Jordan

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