commit | 006c7cb78c4e6e10b8f91cdc1d72299845af25d1 | [log] [tgz] |
---|---|---|
author | Steven Moreland <smoreland@google.com> | Thu Feb 18 18:45:46 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Thu Feb 18 18:45:46 2021 +0000 |
tree | f066799f5e469116cb2c036fb2d3ce2643df85e1 | |
parent | 46617c698df8a616edefa49da2216d2a011d6611 [diff] | |
parent | d84d7d07bd801c98522bed1c7aabc7b89b8d664f [diff] |
Better error for empty -Ljava-constants am: d84d7d07bd Original change: https://android-review.googlesource.com/c/platform/system/tools/hidl/+/1593242 MUST ONLY BE SUBMITTED BY AUTOMERGER Change-Id: I8e309715bcc95b6fc415985aaddb57b1b79460a1
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