Cache the tracepoint query results

To use tracepoints, we build a "tracequery" module that compiles
debuginfo for all available tracepoints in the user's kernel.  That's a
bit of a cumbersome step to do during pass-2 though.  This change adds
tracequery caching so we only need to compile it once.

1 files changed, 1 insertions, 0 deletions

diff --git a/session.h b/session.h
index 820b819e..cbbae6b2 100644
--- a/session.h
+++ b/session.h
@@ -117,6 +117,7 @@ struct systemtap_session
   std::string cache_path;
   std::string hash_path;
   std::string stapconf_path;
+  std::string tracequery_path;
 
   // dwarfless operation
   bool consult_symtab;