Provided by: systemtap-doc_2.9-2ubuntu2_all 

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