commit | ab149e1cfee16d55345d4ea2e64f4441378512fb | [log] [tgz] |
---|---|---|
author | Jayant Chowdhary <jchowdhary@google.com> | Wed Sep 29 14:29:12 2021 -0700 |
committer | Jayant Chowdhary <jchowdhary@google.com> | Fri Nov 05 17:00:38 2021 +0000 |
tree | cb4375b0390bc5d6bb52343cbcf7e88da4ae886e | |
parent | 4b0d04e8f376dad461bdc4dcb70f001e291ac65d [diff] |
Add camera.metadata@3.7 + @3.8 to the hidl exempt list. Camera interfaces will be migrated from HIDL -> AIDL later in the release cycle. Bug: 170230992 Test: hardware/interfaces/camera/metadata/3.8 builds Ignore-AOSP-First: Being temporarily added, 3.8 will be removed when camera AIDL hal interfaces are merged. Change-Id: I1b2422b104a3e278478c8d175c8c1fb88ecd1594 Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
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