commit | e4618d079dcac3cfbd65de7fb3d263dbc76e12fa | [log] [tgz] |
---|---|---|
author | Xin Li <delphij@google.com> | Sun Apr 03 02:24:34 2022 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Sun Apr 03 02:24:34 2022 +0000 |
tree | fc66c1d88a92e272fd070bfb625a08a60d917e5f | |
parent | 14c223f9a8f7785e6876f4fd83aa0cab1fb0d1bd [diff] | |
parent | 0934e6dd48c80a8bd0eb706f270e620f42a8269a [diff] |
[automerger skipped] Merge Android 12 QPR3 ab/8391262 am: 0934e6dd48 -s ours am skip reason: Merged-In I267160d5d3bbcd97a38fbaafdbc704ecc4f0a959 with SHA-1 14c223f9a8 is already in history Original change: https://googleplex-android-review.googlesource.com/c/platform/system/tools/hidl/+/17544441 Change-Id: I5ab9c0feed9375d5b9601c8382ea15e2df62b92b Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
Full documentation can be found here: https://source.android.com/devices/architecture/hidl/
hidl-gen is a compiler for the HIDL (HAL Interface Design Language) which generates C++ and Java endpoints for RPC mechanisms. The main userspace libraries which this compiler uses can be found at system/libhidl.
m hidl-gen
Note that options for hidl-gen expected to be invoked by the build system are marked with ‘internal’ in the help menu.
hidl-gen -h hidl-gen -o output -L c++-impl -r android.hardware:hardware/interfaces -r android.hidl:system/libhidl/transport android.hardware.nfc@1.0
Some defaults for package roots are also provided
hidl-gen -o output -L c++-impl android.hardware.nfc@1.0 hidl-gen -o output -L vts android.hardware.nfc@1.0 hidl-gen -L hash android.hardware.nfc@1.0
Example command for vendor project
hidl-gen -L c++-impl -r vendor.foo:vendor/foo/interfaces vendor.foo.nfc@1.0
See update-makefiles-helper.sh and update-all-google-makefiles.sh for examples of how to generate HIDL makefiles (using the -Landroidbp option).
NOTE: When using the -Landroidbp option, you can force generated modules to be installed in
/system_ext
rather than other partition by putting a marker file.hidl_for_system_ext
alongside*.hal
files.
NOTE: You can also install the vendor variant of the generated modules to be installed in
/odm
rather than/vendor
by putting a marker file.hidl_for_odm
alongside*.hal
files.
This is a helper tool to convert C headers to valid .hal files.
m c2hal && c2hal -h