PR11246: Add more granular cache control

There are some module options that require us to disable caching for the
script, but before now this had a global effect.  There are some cache
objects, like tracepoint and @cast query modules, which we would like to
cache even when the script itself needs to be uncached.

* session.h (systemtap_session): New use_script_cache flag.
* main.cxx (main): -m & -k can just disable the script cache.  Failure to
  create the cache directories still disables all caching.
* hash.cxx (create_hashdir): Failure disables all caching.
* cache.cxx (add_to_cache): Failure only toggles the script caching. If
  the stapconf fails though, we don't need to block the .ko reuse.

0 files changed, 0 insertions, 0 deletions