commit | e9e4700413f6eb7012c50896f5f34433f81b9692 | [log] [tgz] |
---|---|---|
author | Justin Yun <justinyun@google.com> | Mon Jan 25 17:50:45 2021 +0900 |
committer | Justin Yun <justinyun@google.com> | Tue Jan 26 09:21:21 2021 +0900 |
tree | 3b228d167633f71edf5a44d32d8304f1c4d23ead | |
parent | 061ccf6620bce7fdeca216a0f7cde76451d931bc [diff] |
Define odm_available for hidl_interface Define `odm_available` property for hidl_interface modules. With `odm_available: true`, the hidl_interface module installs its vendor variant to /odm or /vendor/odm. By putting a marker file '.hidl_for_odm' with the .hal files, the hidl-gen will generate the Android.bp with `odm_available: true`. Bug: 176147321 Test: build with odm_available: true for a hidl_interface module Change-Id: I67ca08ea1ef17c277fb5d5947c568849edfa80f5
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