commit | 3b79d1de476c4a482f0866d259c40d92a5fc8a0f | [log] [tgz] |
---|---|---|
author | Yu Liu <yudiliu@google.com> | Fri Jun 17 21:06:54 2022 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Fri Jun 17 21:06:54 2022 +0000 |
tree | 6048515dbe1436b698c317ad6998902303ab26bf | |
parent | 5b2b418f8c4eedf2d1252446dd6499b2e9cf73d2 [diff] | |
parent | a598098408ae35219079b2c0db0b2178e4f35cb9 [diff] |
Merge "Make hidl-gen work wih symlinks in order to use it in bazel." am: a598098408 Original change: https://android-review.googlesource.com/c/platform/system/tools/hidl/+/2127960 Change-Id: I22043024a37714b863050d645a6751f8b980e745 Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.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