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| author | Elliott Hughes <enh@google.com> | 2019-04-11 15:53:39 -0700 |
|---|---|---|
| committer | android-build-merger <android-build-merger@google.com> | 2019-04-11 15:53:39 -0700 |
| commit | d5954d0d4f78a6d24cf45d917bae0f43d1dc1ca9 (patch) | |
| tree | 995ad8442ba9738dd070fe728c5bbb225fc5ab4f | |
| parent | 05215268d71368ebeab8238a512124cda35491a7 (diff) | |
| parent | 9b2106519913afb0307bcbc7ea69e8948cff31a1 (diff) | |
| download | kernel-headers-d5954d0d4f78a6d24cf45d917bae0f43d1dc1ca9.tar.gz | |
Merge "Update the docs slightly." am: 3631e25e50
am: 9b21065199
Change-Id: I086c27be08211cfc07c5b1861253c1733079e6dc
| -rw-r--r-- | README.md | 35 |
1 files changed, 11 insertions, 24 deletions
@@ -1,5 +1,4 @@ -Android kernel headers -====================== +# Android kernel headers This project contains the original kernel headers that are used to generate Bionic's "cleaned-up" user-land headers. @@ -8,32 +7,20 @@ 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. -Importing modified kernel headers files is done using scripts found in 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 bionic. Instead -use `TARGET_DEVICE_KERNEL_HEADERS` and friends described in +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). -Regenerating the bionic headers -------------------------------- -The uapi directory contains the original kernel UAPI (userspace API) headers -that are used to generate Bionic's "cleaned-up" user-land headers. The script -`bionic/libc/kernel/tools/generate_uapi_headers.sh` automatically imports the -headers from an android kernel repository. - -Running the script: -``` -generate_uapi_headers.sh --download-kernel -``` - -In order to run the script, you must have properly initialized the build -environment using the lunch command. The script will automatically retrieve -an android kernel, generate all include files, and then copy the headers to -this directory. - -Manually modified headers -------------------------- +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 |