cd ~/software

将aarch64-buildroot-linux-gnu_sdk-buildroot.tar.gz解压到/opt目录下:

sudo tar -zxvf aarch64-buildroot-linux-gnu_sdk-buildroot.tar.gz -C /opt/

进入aarch64-buildroot-linux-gnu_sdk-buildroot目录：

cd /opt/aarch64-buildroot-linux-gnu_sdk-buildroot

sudo ./relocate-sdk.sh

配置环境变量，永久生效：

echo 'export PATH=$PATH:/opt/aarch64-buildroot-linux-gnu_sdk-buildroot/bin' >> ~/.bashrc

source ~/.bashrc

验证安装：

aarch64-buildroot-linux-gnu-gcc –version

aarch64-buildroot-linux-gnu-g++ --version