PR3498: speed up pass-2 and pass-3 for kernel offline dwfl module searching

* dwflpp.cxx (dwflpp ctor): Parametrize for user/kernel modes.
  Update callers.
  (dwfl_report_offline_predicate): New function.  Filter and
  abort searches early if possible.
  (setup_kernel): Use new predicate.
* dwflpp.h: Corresponding changes.
* tapsets.cxx (dwfl_report_offline_predicate): Remove this shared
  implementation.
  (dwarf_builder): Turn kern_dw into module_name->dwflpp* map, just
  like user_dw.
  (get_kern_dw): Adapt.
  (dwarf_build_no_more): Adapt.
* tapsets.h: Remove old shared predicate.
* translate.cxx (dwfl_report_offline_predicate2): New function.
  Filter and abort searches early if possible.
  (emit_symbol_data): Use it.

1 files changed, 0 insertions, 1 deletions

diff --git a/tapsets.h b/tapsets.h
index 7a74ad31..115f2ccf 100644
--- a/tapsets.h
+++ b/tapsets.h
@@ -15,7 +15,6 @@
 
 void register_standard_tapsets(systemtap_session& sess);
 std::vector<derived_probe_group*> all_session_groups(systemtap_session& s);
-int dwfl_report_offline_predicate (const char* modname, const char* filename);
 void common_probe_entryfn_prologue (translator_output* o, std::string statestr,
 				    std::string new_pp, bool overload_processing = true);
 void common_probe_entryfn_epilogue (translator_output* o, bool overload_processing = true);