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diff --git a/docs/howto/CrossBuildForArm.md b/docs/howto/CrossBuildForArm.md deleted file mode 100644 index e307596d0..000000000 --- a/docs/howto/CrossBuildForArm.md +++ /dev/null @@ -1,107 +0,0 @@ -# Cross building for ARM - -## Prepare Ubuntu RootFS - -Install required packages - -``` -sudo apt-get install qemu qemu-user-static binfmt-support debootstrap -``` - -Use `build_rootfs.sh` script to prepare Root File System. You should have `sudo` - -``` -sudo ./tools/cross/build_rootfs.sh arm -``` -- supports `arm`(default) and `arm64` architecutre for now -- supports `xenial`(default) and `trusty` release - -To see the options, -``` -./tools/cross/build_rootfs.sh -h -``` - -RootFS will be prepared at `tools/cross/rootfs/arm` folder. - -## Prepare RootFS at alternative folder - -Use `ROOTFS_DIR` to a full path to prepare at alternative path. - -``` -ROOTFS_DIR=/home/user/rootfs/arm-xenial sudo ./tools/cross/build_rootfs.sh arm -``` - -## Using proxy - -If you need to use proxy server while building the rootfs, use `--setproxy` option. - -``` -# for example, -sudo ./tools/cross/build_rootfs.sh arm --setproxy="1.2.3.4:8080" -# or -sudo ./tools/cross/build_rootfs.sh arm --setproxy="proxy.server.com:8888" -``` - -This will put `apt` proxy settings in `rootfs/etc/apt/apt.conf.d/90proxy` file -for `http`, `https` and `ftp` protocol. - -## Install ARM Cross Toolchain - -We recommend you have g++ >= 6 installed on your system because NN generated tests require it. - -On Ubuntu 16.04 or older, follow the next steps: - -``` -cd ~/your/path -wget https://releases.linaro.org/components/toolchain/binaries/7.2-2017.11/arm-linux-gnueabihf/gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf.tar.xz -tar xvf gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf.tar.xz -echo 'PATH=~/your/path/gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf/bin:$PATH' >> ~/.bashrc -``` - -On Ubuntu 18.04 LTS, you can install using `apt-get`. -Choose g++ version whatever you prefer: 6, 7 or 8. - -``` -sudo apt-get install g++-{6,7,8}-arm-linux-gnueabihf -``` - -Make sure you get `libstdc++.so` updated on your target with your new toolchain's corresponding one. - -For example, if you installed gcc-linaro-7.2.1-2017.11 above, do - -``` -wget https://releases.linaro.org/components/toolchain/binaries/7.2-2017.11/arm-linux-gnueabihf/runtime-gcc-linaro-7.2.1-2017.11-arm-linux-gnueabihf.tar.xz -tar xvf runtime-gcc-linaro-7.2.1-2017.11-arm-linux-gnueabihf.tar.xz -``` - -Then, copy `libstdc++.so.6.0.24` into `/usr/lib/arm-linux-gnueabihf`, and update symbolic links on your device. - -## Build and install ARM Compute Library - -``` -CROSS_BUILD=1 TARGET_ARCH=armv7l make acl -``` -Mostly you only need once of ACL build. This will build and install to `Product/(target_arch-os)/out/bin` folder. -- this is required for ARM on Ubuntu - -## Build nnfw - -Give `TARGET_ARCH` variable to set the target architecture - -``` -CROSS_BUILD=1 TARGET_ARCH=armv7l make all install -``` -- supports `armv7l` and `aarch64` for now - -If you used `ROOTFS_DIR` to prepare in alternative folder, you should also give this to makefile. - -``` -ROOTFS_DIR=ROOTFS_ARM=/path/to/your/rootfs/arm \ -CROSS_BUILD=1 TARGET_ARCH=armv7l make all install -``` - -## Run test - -``` - ./tests/scripts/test_driver.sh --artifactpath=. -``` |