Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::user_short_warn - Retrieves a short value stored in user space
SYNOPSIS
user_short_warn:long(addr:long)
ARGUMENTS
addr
the user space address to retrieve the short from
DESCRIPTION
Returns the short value from a given user space address. Returns zero when user space and warns (but does
not abort) about the failure.
SystemTap Tapset Reference March 2016 FUNCTION::USER_SHORT(3stap)