Thanks @kgomaa, for your reply and referece.
I quickly checked the relevant question, I found that’s actually what I really wanna know.
probably I should have searched this beforehand.
I still have very fundamental question that with RPC, why we don’t need to take a cross compiler path even though the way of RPC also needs to generate arm executable binary (ISA for arm).
If you know about this, please tell me it.
@merrymercy
also thanks for your reply.
that means the build function or load changes the behavior like how to generate the binary depending on the extension??