centos man page for function::user_string_n_warn

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					     June 2014					       FUNCTION::USER_STRIN(3stap)