commit | e235cd4c186cd840017499de5bb1ea66373386b1 | [log] [tgz] |
---|---|---|
author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Oct 07 16:59:18 2021 +0000 |
committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Oct 07 16:59:18 2021 +0000 |
tree | 665564272a2c03e0bdd2fc4732faa8f1e5864150 | |
parent | e6b6e4ae1a4aabce82cc070e6b2d61415f6b4525 [diff] | |
parent | b4f1c7643dcfa289d56338bd639b4deb40850bae [diff] |
Snap for 7803083 from b4f1c7643dcfa289d56338bd639b4deb40850bae to mainline-tzdata2-release Change-Id: Ib5c4d4fed0aefb9953b5fab6db2275d348217a63
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