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

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