commit | 7dc82ad6ace16311803d1af7195931f395a19623 | [log] [tgz] |
---|---|---|
author | Android Build Coastguard Worker <[email protected]> | Wed May 11 05:12:25 2022 +0000 |
committer | Android Build Coastguard Worker <[email protected]> | Wed May 11 05:12:25 2022 +0000 |
tree | 599fce2ebe81c58d468695203d147556507867b2 | |
parent | ac02ef947445599e2eb2e14625174afae65e6d61 [diff] | |
parent | 8e9a1e745cd1aa274f99890eaeabe1ce9b8cecb7 [diff] |
Snap for 8570526 from 8e9a1e745cd1aa274f99890eaeabe1ce9b8cecb7 to mainline-media-swcodec-release Change-Id: Ia01291f483aadbbfb6d4894543ef32045b1e7244
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 [email protected]
Some defaults for package roots are also provided
hidl-gen -o output -L c++-impl [email protected] hidl-gen -o output -L vts [email protected] hidl-gen -L hash [email protected]
Example command for vendor project
hidl-gen -L c++-impl -r vendor.foo:vendor/foo/interfaces [email protected]
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