Make "set debug frame 1" output print <not saved> instead of <optimiz…

…ed out>. "set debug frame 1" is printing "<optimized out>" for not saved registers. That's because the unwinders are returning optimized out not_lval values instead of optimized out lval_register values. "<not saved>" is how val_print_optimized_out prints lval_register values. ... - { frame_unwind_register_value (frame=0,regnum=7(rsp),...) -> <optimized out> } + { frame_unwind_register_value (frame=0,regnum=7(rsp),...) -> <not saved> } ... Tested on x86_64 Fedora 17. 2013-11-27 Pedro Alves <[email protected]> * frame-unwind.c (frame_unwind_got_optimized): Return an lval_register value instead of a not_lval value.
tromey · Nov 27, 2013 · 6bd273a · 6bd273a
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diff --git a/gdb/ChangeLog b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2013-11-27  Pedro Alves  <[email protected]>
+
+	* frame-unwind.c (frame_unwind_got_optimized): Return
+	an lval_register value instead of a not_lval value.
+
 2013-11-27  Andrew Burgess  <[email protected]>
 
 	* frame.c: Include "valprint.h".

diff --git a/gdb/frame-unwind.c b/gdb/frame-unwind.c
@@ -161,10 +161,12 @@ default_frame_unwind_stop_reason (struct frame_info *this_frame,
 struct value *
 frame_unwind_got_optimized (struct frame_info *frame, int regnum)
 {
-  struct gdbarch *gdbarch = frame_unwind_arch (frame);
-  struct type *reg_type = register_type (gdbarch, regnum);
+  struct value *val;
 
-  return allocate_optimized_out_value (reg_type);
+  val = value_of_register_lazy (frame, regnum);
+  set_value_lazy (val, 0);
+  set_value_optimized_out (val, 1);
+  return val;
 }
 
 /* Return a value which indicates that FRAME copied REGNUM into