commit | f726f1b4a550f67bfc5b5d7997599e30ef9df1b0 | [log] [tgz] |
---|---|---|
author | Xin Li <delphij@google.com> | Mon Jun 27 23:40:18 2022 +0000 |
committer | Xin Li <delphij@google.com> | Mon Jun 27 23:40:18 2022 +0000 |
tree | 9bec82bc3bff261c1a196364d10f60ea9d8cbb08 | |
parent | 3b79d1de476c4a482f0866d259c40d92a5fc8a0f [diff] | |
parent | 70c87b794052f8b8475bb25791a34b0898ee39dd [diff] |
Merge tm-dev-plus-aosp-without-vendor@8763363 Bug: 236760014 Merged-In: I0f4631a61741b5c30bb8899d5ed1998c6c16ebf6 Change-Id: I08eb5d757728c9fdbcc83be09187677c4817e971
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