centos man page for function::regparm

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

NAME
       function::regparm - Specify regparm value used to compile function

SYNOPSIS
	   regparm(n:long)

ARGUMENTS
       n
	   original regparm value

DESCRIPTION
       Call this function with argument n before accessing function arguments using the *_arg function is the function was build with the gcc
       -mregparm=n option.

       (The i386 kernel is built with -mregparm=3, so systemtap considers regparm(3) the default for kernel functions on that architecture.) Only
       valid on i386 and x86_64 (when probing 32bit applications). Produces an error on other architectures.

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