NAME

       function::user_string2 - Retrieves string from user space with alternative error string

SYNOPSIS

           user_string2:string(addr:long,err_msg:string)

ARGUMENTS

       addr
           the user space address to retrieve the string from

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

DESCRIPTION

       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.

SystemTap Tapset Reference                         March 2016                        FUNCTION::USER_STRIN(3stap)