| # Android kernel headers |
| |
| This project 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. The cleaned up headers do not |
| contain copyrightable information and are distributed with bionic. |
| |
| ## Regenerating the bionic headers |
| |
| Note that if you're actually just trying to expose device-specific headers |
| to build your device drivers, you shouldn't modify these headers or bionic. |
| Instead use `TARGET_DEVICE_KERNEL_HEADERS` and friends as described in |
| [config.mk](https://android.googlesource.com/platform/build/+/master/core/config.mk#186). |
| |
| Otherwise see the |
| [bionic/libc/kernel docs](https://android.googlesource.com/platform/bionic/+/master/libc/kernel/) |
| for how to actually take an update. |
| |
| |
| ## Manually modified headers |
| |
| The `modified/scsi` directory contains a set of manually updated headers. |
| The scsi kernel headers were never properly made to into uapi versions, |
| so this directory contains the unmodified scsi headers that are imported |
| into bionic. The generation script will indicate if these files have |
| changed and require another manual update. |
| |
| The files from the scsi directory will be copied into bionic after |
| being processed as is, unless there exists a file of the same name in |
| `../modified/scsi`. Any files found in the modified directory completely |
| replace the ones in the scsi directory. |