问题
I have a board that requires to change the DEFEAULTTUNE. I did this in my conf/local.conf. As this place actually is reserved for build host configuration as far as I understand I think that this is actually not the best suited place. What would be the right place? Changing the machine configuration of the bsp provider does not seem to be the best idea either...
Best regards and thanks for any hint
回答1:
As I was explained DEFAULTTUNE is an absolute classic to go into the MACHINE configuration file (Credits go to LetThe2nd on yoctos' IRC).
Thus, the solution is to create a directory (if you don't have it, yet) inside your own layer for machine configurations:
mkdir meta-mylayer/conf/machine
Create a configuration (let's call it mymachine.conf) for your machine with the following content:
include ${TOPDIR}/../sources/meta-sunxi/conf/machine/orange-pi-zero.conf
DEFAULTTUNE = "cortexa7t-neon"
you most likely have to adopt the BSP provider (meta-sunxi) as well as the machine configuration file (orange-pi-zero.conf) and the DEFAULTTUNE to whatever you require.
来源：https://stackoverflow.com/questions/61011386/override-defaulttune-and-other-machine-configuration-parameters