This directory contains the original kernel headers that are used to generate Bionic's "cleaned-up" user-land headers. They are mostly covered by the GPLv2 + exception, and thus cannot be distributed as part of the platform itself. (NOTE: The cleaned up headers do not contain copyrightable information and are distributed with Bionic) Importing modified kernel headers files is done using scripts found in bionic. For more details, please read bionic/libc/kernel/README.TXT.