c2hal user-guide

1. Build

croot
make c2hal ‐j64

2. Run

c2hal [‐g] [‐o dir] ‐p package (‐r interface‐root)+ (header‐filepath)+

-o output path: If missing, the second half of a relevant interface-root will be used.
-p package: For example android.hardware.baz@1.0. This will be used as the package in .hal files and will
also be used to construct the correct directory structure.
-g: Enabling this flag changes the behavior of c2hal to parse opengl files.
-r package:path root: For example ‘android.hardware:hardware/interfaces’.
Examples:

# Build the test.h header:
c2hal ‐r android.hardware:hardware/interfaces ‐p android.hardware.baz@1.0
system/tools/hidl/c2hal/test/test.h
# Build the simple.h header:
c2hal ‐r android.hardware:hardware/interfaces ‐p android.hardware.simple@1.0
system/tools/hidl/c2hal/test/simple.h
# Build a particular libhardware header:
c2hal ‐r android.hardware:hardware/interfaces ‐p android.hardware.nfc@1.0
hardware/libhardware/include/hardware/nfc.h
# Build all headers from libhardware:
python3 system/tools/hidl/c2hal/test/build_all.py
~/android/master/hardware/libhardware/include/hardware/
# Build various OpenGl versions:
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/EGL/
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/ETC1/
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/GLES/
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/GLES2/
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/GLES3/
python3 system/tools/hidl/c2hal/test/build_all.py ‐g
~/android/master/frameworks/native/opengl/include/KHR/

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c2hal user-guide

1. Build

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