commit | cc0bad111921765622ea6b82e212a1e907d7e05f | [log] [tgz] |
---|---|---|
author | Dan Willemsen <dwillemsen@google.com> | Fri Mar 25 23:10:36 2022 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Mar 25 23:10:36 2022 +0000 |
tree | ccc68d0f1a7a444043dff3790945bb38b366fa65 | |
parent | ed99b1655b56e6ed4f5555090b821f6ebb3821c0 [diff] | |
parent | 06a29d35ad4dcd5c2496cdc22d0a1031d7af62d8 [diff] |
Fix newer Bison compatibility am: 93704e39ae am: 06a29d35ad Original change: https://android-review.googlesource.com/c/platform/system/tools/hidl/+/2038853 Change-Id: I55604df6537f1802d95fde6cb6ca6b65bdbdc48d 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