PR 3887: sufficient+optional probe points

2007-11-19  Frank Ch. Eigler  <fche@elastic.org>

	PR 3887.
	* staptree.h (probe_point): Add "sufficient" field.
	* staptree.cxx: Initialize it, print it.
	* parse.cxx (parse_probe_point): Parse it.
	* elaborate.cxx (derive_probes): Implement it.
	* stapprobes.5.in: Document it.
	* NEWS: Gloat about it.

	* parseok/five.stp, semok/twentyseven.stp: Test "!" probe point flag.

	* iostat-scsi.stp: Adopt "!" probe point flag.

1 files changed, 1 insertions, 0 deletions

diff --git a/staptree.h b/staptree.h
index 23f43566..d8c97633 100644
--- a/staptree.h
+++ b/staptree.h
@@ -573,6 +573,7 @@ struct probe_point
   std::vector<component*> components;
   const token* tok; // points to first component's functor
   bool optional;
+  bool sufficient;
   void print (std::ostream& o) const;
   probe_point ();
   probe_point(std::vector<component*> const & comps,const token * t);