commit | a8dccd64a9f345475413a9b9490861e1aaea22a0 | [log] [tgz] |
---|---|---|
author | android-build-team Robot <android-build-team-robot@google.com> | Sat May 15 03:10:36 2021 +0000 |
committer | android-build-team Robot <android-build-team-robot@google.com> | Sat May 15 03:10:36 2021 +0000 |
tree | 082d78bc1885336f6e43360b1d9b459c7e98366c | |
parent | a0784849eb6e42ec3468de7e16f6c2bc82fc54c6 [diff] | |
parent | bc9a338b351e40071ee436178c66dd34b0e237a3 [diff] |
Snap for 7362794 from bc9a338b351e40071ee436178c66dd34b0e237a3 to sc-v2-release Change-Id: I011aa9910394bf03a4ba34e498146ae5cc36149b
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