2006-10-11 David Smith <dsmith@redhat.com>

	* tapsets.cxx (in_kprobes_function): New function that looks up
	the values of '__kprobes_text_start' and '__kprobes_text_end' in
	the kernel to be able to automatically exclude functions marked as
	'__kprobes' (BZ# 2639).
	(blacklisted_p): Calls in_kprobes_function().
	(query_kernel_module): Utility function that finds the kernel module.
	* session.h (struct systemtap_session): Added kprobes_text
	variables - kprobes_text_initialized, kprobes_text_start, and
	kprobes_text_end.
	* elaborate.cxx (systemtap_session::systemtap_session):
	kprobes_text variables get initialized.

1 files changed, 9 insertions, 0 deletions

diff --git a/session.h b/session.h
index fa8d375a..75e13136 100644
--- a/session.h
+++ b/session.h
@@ -16,6 +16,10 @@
 #include <sstream>
 #include <map>
 
+extern "C" {
+#include <elfutils/libdw.h>
+}
+
 
 // forward decls for all referenced systemtap types
 struct match_node;
@@ -109,6 +113,11 @@ struct systemtap_session
   translator_output* op;
   unparser* up;
 
+  // kprobes_text data
+  bool kprobes_text_initialized;
+  Dwarf_Addr kprobes_text_start;
+  Dwarf_Addr kprobes_text_end;
+
   unsigned num_errors;
   // void print_error (const parse_error& e);
   void print_error (const semantic_error& e);