-set $tagmask = (((long)1 << gdb_gctypebits) - 1)
-# The consing_since_gc business widens the 1 to EMACS_INT,
-# a symbol not directly visible to GDB.
-set $valmask = gdb_use_lsb ? ~($tagmask) : ((consing_since_gc - consing_since_gc + 1) << gdb_valbits) - 1
-