Provided by: systemtap-doc_3.1-3ubuntu0.1_all 

NAME
function::int_arg - Return function argument as signed int
SYNOPSIS
int_arg:long(n:long)
ARGUMENTS
n
index of argument to return
DESCRIPTION
Return the value of argument n as a signed int (i.e., a 32-bit integer sign-extended to 64 bits).
SEE ALSO
tapset::registers(3stap)
SystemTap Tapset Reference March 2016 FUNCTION::INT_ARG(3stap)