function::user_string2_n_warn(3stap) centos man page | unix.com

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

NAME
       function::user_string2_n_warn - Retrieves string from user space with alternative warning string

SYNOPSIS
	   user_string2_n_warn:string(addr:long,n:long,warn_msg:string)

ARGUMENTS
       addr
	   the user space address to retrieve the string from

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

       warn_msg
	   the warning message to return when data isn't available

DESCRIPTION
       Returns up to n characters of a C string from a given user space memory address. Reports the given warning message 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)