https://blog.wongcw.com/2021/01/24/%e7%9b%b4%e6%88%b3arm%e9%95%b7%e8%99%95%e9%a6%96%e5%80%8brisc-v%e7%89%88android-10%e7%b3%bb%e7%b5%b1%e9%a0%86%e6%9a%a2%e9%81%8b%e8%a1%8c/