NAME

       function::user_string_n_warn - Retrieves string from user space

SYNOPSIS

           user_string_n_warn:string(addr:long,n:long)

ARGUMENTS

       addr
           the user space address to retrieve the string from

       n
           the maximum length of the string (if not null terminated)

DESCRIPTION

       Returns up to n characters of a C string from a given user space memory address. Reports “<unknown>” on
       the rare cases when userspace data is not accessible and warns (but does not abort) about the failure.

SEE ALSO

       tapset::uconversions(3stap)

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