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

NAME
function::d_path - get the full nameidata path
SYNOPSIS
d_path:string(nd:long)
ARGUMENTS
nd
Pointer to nameidata.
DESCRIPTION
Returns the full dirent name (full path to the root), like the kernel d_path function.
SystemTap Tapset Reference March 2016 FUNCTION::D_PATH(3stap)