function::long_arg - Return function argument as signed long

n
           index of argument to return

       Return the value of argument n as a signed long. On architectures where a long is 32 bits, the value is
       sign-extended to 64 bits.

       function::long_arg - Return function argument as signed long

tapset::registers(3stap)

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

           long_arg:long(n:long)