pgsql: Allow plugins to suppress inlining and hook function entry/exit/

Allow plugins to suppress inlining and hook function entry/exit/abort.

This is intended as infrastructure to allow an eventual SE-Linux plugin to
support trusted procedures.

KaiGai Kohei

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=d368e1a2a7afad5a0fc711a2ab70a83c36fa57af

Modified Files
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src/backend/optimizer/util/clauses.c |    8 +++++++
src/backend/utils/fmgr/fmgr.c        |   39 +++++++++++++++++++++++----------
src/include/fmgr.h                   |   26 ++++++++++++++++++++++
3 files changed, 61 insertions(+), 12 deletions(-)