28 lines
951 B
Markdown
28 lines
951 B
Markdown
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# Arm semihosting
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This folder contain a toolchain file and a couple of examples for
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building OpenCV based applications that can run in an [Arm
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semihosting](https://developer.arm.com/documentation/100863/latest)
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setup.
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OpenCV can be compiled to target a semihosting platform as follows:
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```
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cmake ../opencv/ \
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-DCMAKE_TOOLCHAIN_FILE=../opencv/platforms/semihosting/aarch64-semihosting.toolchain.cmake \
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-DSEMIHOSTING_TOOLCHAIN_PATH=/path/to/baremetal-toolchain/bin/ \
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-DBUILD_EXAMPLES=ON -GNinja
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```
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A barematel toolchain for targeting aarch64 semihosting can be found
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[here](https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads),
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under `aarch64-none-elf`.
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The code of the examples in the `norm` and `histogram` folders can be
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executed with qemu in Linux userspace:
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```
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qemu-aarch64 ./bin/example_semihosting_histogram
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qemu-aarch64 ./bin/example_semihosting_norm
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```
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