The documentation is missing the description of PACKAGEFUNCS, PACKAGESPLITFUNCS, PACKAGE_PREPROCESS_FUNCS from package.bbclass, which are used to control packaging.
Only PACKAGEFUNCS was missing documentation, and is now documented with: https://git.yoctoproject.org/yocto-docs/commit/?id=c3e8c602c60bf78123d6a05b83346235abf7f233 Could not spot other variables in the package class that would be relevant to document. Moving to Resolved Fixed, feel free to re-open in case there are other missing bits of docs from this class.