commit | a81096057f499903688b3b324877884e58a2b4c5 | [log] [tgz] |
---|---|---|
author | Colin Cross <ccross@android.com> | Wed Jul 11 14:51:24 2018 -0700 |
committer | Colin Cross <ccross@android.com> | Wed Jul 11 15:01:15 2018 -0700 |
tree | 4f03ab756b0ea51af132679713461ded67b922df | |
parent | 17eabb33b9d7550f99d95280fd0010d0ca5e5cd0 [diff] |
Pass -p . to hidl-gen so it doesn't use ANDROID_BUILD_TOP ANDROID_BUILD_TOP should not be used inside the build, there is no guarantee that envsetup.sh was sourced before the build. Pass -p . to hidl-gen so that it doesn't fall back to ANDROID_BUILD_TOP. Bug: 79250545 Test: m checkbuild Change-Id: Ib24541b5177fcc35f70878beaf20defc5f6d9526
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).
This is a helper tool to convert C headers to valid .hal files.
m c2hal && c2hal -h
This tool generates html documentation for hal interfaces.
m hidl-doc && hidl-doc -h