On 02/07/2018 08:48 PM, Janez Svetokravsky wrote:
I have just stumbled upon interesting problem, which i do not know how
to solve. I am using yocto to build image for ARM cortex-A9 CPU. default
gcc used is version 5.2
Beside ARM cortex-A9 there is cortex-m0plus chip, which is located on
the same board. From now on i will use abbreviations A9 and M0.
Occasionally A9 is used to upgrade software on M0, therefor upgrade
image for M0 is located in rootfs which is accessed by A9. Until now, i
used different compiler/environment to compile firmware for M0 and
afterwards copied M0 image to A9 rootfs.
I would like to move compiling of M0 firmware into yocto. gcc version
used for M0 firmware is different and must not be changed, same goes for
A9. So my question is: Is it possible to specify different version of
gcc and different architecture, for single yocto recipe?
You can build any recipe for a different machine in the same build
directory:
MACHINE=someothermachine bitbake <firmware>
You will find the packages in deploy dir.
Or just set up a separate build directory, and build there. Then use any
suitable way to copy the result over (such as a recipe that pulls the
ready-built firmware in).
Alex
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