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

NAME
function::ulonglong_arg - Return function argument as 64-bit value
SYNOPSIS
ulonglong_arg:long(n:long)
ARGUMENTS
n
index of argument to return
DESCRIPTION
Return the value of argument n as a 64-bit value. (Same as longlong_arg.)
SystemTap Tapset Reference March 2016 FUNCTION::ULONGLONG_(3stap)