There was a paper at EuroSys this year "Relational access to Unix kernel data structures" which seems to attempt to offer similar functionality. A comparison between the two would be interesting.

HTML version of the paper here: http://www.dmst.aueb.gr/dds/pubs/conf/2014-EuroSys-PicoQL-ke... Paywalled version: http://dl.acm.org/citation.cfm?id=2592802