[yocto] Reproducible u-boot

[Patrick Doyle]

How do I use the reproducible_build class to create a reproducible u-boot?

I tried adding

inherit reproducible_build

to my u-boot recipe, but when I do that, I generate errors of the form:

ERROR: When reparsing
/path/tot/u-boot_git.bb.do_deploy_source_date_epoch, the basehash
value changed from
e7c4a942e76dc4e630d9dc6e3b6d49db66adeb2c9a5e2d511fac3fc7dabd4e59 to
4735b8a3f887bf83059c5d56e529f1a5650fab8ac53ce4e2c222524e690092ae. The
metadata is not deterministic and this needs to be fixed.

Where should I look to learn more about the use of reproducible_build.bbclass?

--wpd