[Buildroot] switching hardware-specific parts of .config?
Hollis Blanchard
hollis_blanchard at mentor.com
Mon Sep 23 15:45:39 UTC 2019
I have a .config that currently targets a particular architecture/board.
What's the best way to switch just the hardware parts of it to target a
different board from a different architecture, leaving options like
package selection or rootfs format unaffected?
I imagine I could:
* Maintain two separate config files. This would require me to
remember that when I change e.g. package selection in one, I need to
make the corresponding change in the other.
* Maintain three config file fragments (2x hardware, 1x "other"). When
I make changes, this would require me to manually split the ultimate
.config back in to hardware and "other" fragments.
* Create a tool to rewrite the single .config, e.g. replacing options
like BR2_arm=y. This would require the rewriting tool to know the
full set of options it needs to replace. I already do essentially
this with toolchain options (so you can point at a different
toolchain and have your config rewritten to match), so it's not
crazy... but it might not be as easy as with BR2_TOOLCHAIN_*.
Any recommendations? Thanks!
--
Hollis Blanchard
Mentor Graphics Emulation Division
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