[RFA 2/7] API for inhibiting section map updates

[Gary Benson <gbenson at redhat dot com>]

This patch adds a couple of functions to allow section map updates
to be temporarily inhibited.  Without this ability, the calls to
evaluate_probe_argument in svr4_handle_solib_event trigger a section
map update every time a group of shared objects are mapped, which
significantly affects performance.  The updates are unnecessary in
this case as the sections in question are in the runtime linker and
so already in the section map.

Attachment: rtld-probes-2-inhibit-sm-updates.patch
Description: Text document