function::ulong_arg - Return function argument as unsigned long

n
           index of argument to return

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

       function::ulong_arg - Return function argument as unsigned long

tapset::registers(3stap)

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

           ulong_arg:long(n:long)