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

NAME
function::proc_mem_shr - Program shared pages (from shared mappings)
SYNOPSIS
proc_mem_shr:long()
ARGUMENTS
None
DESCRIPTION
Returns the shared pages (from shared mappings) of the current process, or zero when there is no current
process or the number of pages couldn't be retrieved.
SystemTap Tapset Reference March 2016 FUNCTION::PROC_MEM_S(3stap)