Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
function::uid - Returns the user ID of a target process
SYNOPSIS
uid:long()
ARGUMENTS
None
DESCRIPTION
This function returns the user ID of the target process.
SEE ALSO
tapset::context(3stap)
SystemTap Tapset Reference April 2016 FUNCTION::UID(3stap)