FUNCTION::USER_STRIN(3stap)                      String and data retrieving fun                      FUNCTION::USER_STRIN(3stap)



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.



SystemTap Tapset Reference                                 August 2011                               FUNCTION::USER_STRIN(3stap)