tag | b023ef04f91c79bdc51276a8c7f0b87b1a4efad3 | |
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tagger | The Android Open Source Project <initial-contribution@android.com> | Fri Feb 03 17:02:29 2023 -0800 |
object | a5eb954c035f38181c6f81840dc97680dc098ee5 |
Platform Tools Release 34.0.0 (9560563)
commit | a5eb954c035f38181c6f81840dc97680dc098ee5 | [log] [tgz] |
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author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Wed Feb 01 11:12:25 2023 +0000 |
committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Wed Feb 01 11:12:25 2023 +0000 |
tree | 62641af6739c362dabc3ae1932b1f1c7018f8384 | |
parent | ee724e522957b6374790f0780fa417bc4a99da7b [diff] | |
parent | ba5e84ec264fc3403afedf352cd83cc9d16860bf [diff] |
Snap for 9550355 from ba5e84ec264fc3403afedf352cd83cc9d16860bf to sdk-release Change-Id: I94f31371284ec6d5a67f24f9bdbe00b91086cfc1
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