function::user_string - Retrieves string from user space

addr
           the user space address to retrieve the string from

       err_msg
           the error message to return when data isn't available

       1) Returns the null terminated C string from a given user space memory address. Reports an error on the
       rare cases when userspace data is not accessible.

       2) Returns the null terminated C string from a given user space memory address. Reports the given error
       message on the rare cases when userspace data is not accessible.

       function::user_string - Retrieves string from user space

tapset::uconversions(3stap)

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

       1) user_string:string(addr:long)

       2) user_string:string(addr:long,err_msg:string)