logging.bbclass
The logging class provides the standard shell functions used to log messages for various BitBake severity levels (i.e. bbplain, bbnote, bbwarn, bberror, bbfatal, and bbdebug).
logging
bbplain
bbnote
bbwarn
bberror
bbfatal
bbdebug
This class is enabled by default since it is inherited by the base class.
base