* blockframe.c: fix a null pointer ref in generic_get_saved_register

30 years ago · b444216f2c
2 changed files with 5 additions and 1 deletions
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@ -1,3 +1,7 @@
+Tue Jan 28 15:54:13 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>
+
+	* blockframe.c: fix a null pointer ref in generic_get_saved_register
+
 Tue Jan 28 15:39:50 1997  Geoffrey Noer  <noer@cygnus.com>

 	* mn10200-tdep.c (mn10200_frame_chain): get basic backtracing
--- a/gdb/blockframe.c
+++ b/gdb/blockframe.c
@ -1051,7 +1051,7 @@ generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
     the current frame itself: otherwise, we would be getting the
     previous frame's registers which were saved by the current frame.  */

-  while ((frame = frame->next) != NULL)
+  while (frame && ((frame = frame->next) != NULL))
    {
      if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
 	{