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

NAME
function::pn - Returns the active probe name
SYNOPSIS
pn:string()
ARGUMENTS
None
DESCRIPTION
This function returns the script-level probe point associated with a currently running probe handler,
including wild-card expansion effects. Context: The current probe point.
SystemTap Tapset Reference March 2016 FUNCTION::PN(3stap)