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Index: gdb-6.8.50.20090803/gdb/valops.c
===================================================================
--- gdb-6.8.50.20090803.orig/gdb/valops.c 2009-08-04 06:30:45.000000000 +0200
+++ gdb-6.8.50.20090803/gdb/valops.c 2009-08-04 06:33:05.000000000 +0200
@@ -926,10 +926,18 @@ value_assign (struct value *toval, struc
struct gdbarch *gdbarch;
int value_reg;
- /* Figure out which frame this is in currently. */
- frame = frame_find_by_id (VALUE_FRAME_ID (toval));
value_reg = VALUE_REGNUM (toval);
+ /* Figure out which frame this is in currently. */
+ frame = frame_find_by_id (VALUE_FRAME_ID (toval));
+ /* "set $reg+=1" should work on programs with no debug info,
+ but frame_find_by_id returns NULL here (RH bug 436037).
+ Use current frame, it represents CPU state in this case.
+ If frame_find_by_id is changed to do it internally
+ (it is contemplated there), remove this. */
+ if (!frame)
+ frame = get_current_frame ();
+ /* Probably never happens. */
if (!frame)
error (_("Value being assigned to is no longer active."));