commit | 6914c28abe53f3d1b4cc757517e7afbc9f238463 | [log] [tgz] |
---|---|---|
author | Steven Moreland <smoreland@google.com> | Tue Feb 02 03:18:58 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Tue Feb 02 03:18:58 2021 +0000 |
tree | ef86bc3dd95c17935b93d127f325f5093e7edcf8 | |
parent | cee44153607dc3f74e955082124c9740953dcff1 [diff] | |
parent | 5a023d639941cd695c62ed1344a051e2ceb7b698 [diff] |
Merge "propagate min_sdk_version to java backend" am: 5a023d6399 Original change: https://android-review.googlesource.com/c/platform/system/tools/hidl/+/1567508 MUST ONLY BE SUBMITTED BY AUTOMERGER Change-Id: I95fbafc9ce38fe7aa5188ddee2c26cca47d27007
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