function::return_str - Formats the return value as a string

format
           Variable to determine return type base value

       ret
           Return value (typically $return)

       This function is used by the syscall tapset, and returns a string. Set format equal to 1 for a decimal, 2
       for hex, 3 for octal.

       Note that this function is preferred over returnstr.

       function::return_str - Formats the return value as a string

tapset::errno(3stap)

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

           return_str:string(format:long,ret:long)