ARM aarch64 stack operation example 前情提要: AArch64 Register Special Role in the procedure call standard x0…x7 Parameter/result registers x8 Indirect result location register x9..x15 Temporary registers x16 IP0 The first intra-procedure-call scratch register (can be used by call veneers and PLT code); at other times may be used as a temporary register. x17 IP1 The second intra-procedure-call temporary register (can be used