centos man page for function::stp_pid

FUNCTION::STP_PID(3stap)					 Context Functions					  FUNCTION::STP_PID(3stap)

NAME
       function::stp_pid - The process id of the stapio process

SYNOPSIS
	   stp_pid:long()

ARGUMENTS
       None

DESCRIPTION
       This function returns the process id of the stapio process that launched this script. There could be other SystemTap scripts and stapio
       processes running on the system.

SystemTap Tapset Reference					     June 2014						  FUNCTION::STP_PID(3stap)