[RFA] Fix backtrace/1435

Mark Kettenis kettenis@chello.nl
Wed Nov 19 17:36:00 GMT 2003


   Date: Mon, 17 Nov 2003 17:27:47 -0500
   From: Andrew Cagney <cagney@gnu.org>

   > Ok to check this in?

   Yes, but with more comments :-)

Here's what I actually checked in.

Mark


Index: ChangeLog
from  Mark Kettenis  <kettenis@gnu.org>

	* frame.c (get_prev_frame): Use result from
	get_frame_address_in_block instead of get_frame_pc as argument to
	inside_main_func.  Fixes PR backtrace/1435.

Index: frame.c
===================================================================
RCS file: /cvs/src/src/gdb/frame.c,v
retrieving revision 1.147
diff -u -p -r1.147 frame.c
--- frame.c 24 Oct 2003 17:37:03 -0000 1.147
+++ frame.c 19 Nov 2003 17:34:38 -0000
@@ -1790,9 +1790,13 @@ get_prev_frame (struct frame_info *this_
      get_current_frame().  */
   gdb_assert (this_frame != NULL);
 
+  /* Make sure we pass an address within THIS_FRAME's code block to
+     inside_main_func.  Otherwise, we might stop unwinding at a
+     function which has a call instruction as its last instruction if
+     that function immediately precedes main().  */
   if (this_frame->level >= 0
       && !backtrace_past_main
-      && inside_main_func (get_frame_pc (this_frame)))
+      && inside_main_func (get_frame_address_in_block (this_frame)))
     /* Don't unwind past main(), bug always unwind the sentinel frame.
        Note, this is done _before_ the frame has been marked as
        previously unwound.  That way if the user later decides to



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