function::fastcall - Mark function as declared fastcall

       None

       Call this function before accessing arguments using the *_arg functions if the probed kernel function was
       declared fastcall in the source.

       function::fastcall - Mark function as declared fastcall

tapset::registers(3stap)

SystemTap Tapset Reference                         April 2024                          FUNCTION::FASTCALL(3stap)

           fastcall()