commit | 97c7721114cdde1df599d8cfb975e3858d6679b6 | [log] [tgz] |
---|---|---|
author | Xin Li <delphij@google.com> | Fri Oct 08 08:29:32 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Oct 08 08:29:32 2021 +0000 |
tree | c750dfbebb650f4184ebdd22d0452693b39ba924 | |
parent | cc53d7e11f193d2db7f99cccd0d7c70358ae3228 [diff] | |
parent | 60f6dedaf9cca5f62df10f3c0631765f411a58b5 [diff] |
[automerger skipped] Merge Android 12 am: 308c3269c8 -s ours am: 26eb770fae -s ours am: 07c38180f4 -s ours am: 60f6dedaf9 -s ours am skip reason: Merged-In I8db35bdaef1138a054e7303db60b9f4cffd34ab6 with SHA-1 310f7f02fe is already in history Original change: https://android-review.googlesource.com/c/platform/system/tools/hidl/+/1847994 Change-Id: I03c8687510bd3d6162a1c9718f493e600ee714f6
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