This method should not cache data; if the memory map could
change unexpectedly, it should be invalidated, and higher
layers will re-fetch it. */
- VEC(mem_region_s) *(*to_memory_map) (struct target_ops *);
+ VEC(mem_region_s) *(*to_memory_map) (struct target_ops *)
+ TARGET_DEFAULT_RETURN (0);
/* Erases the region of flash memory starting at ADDRESS, of
length LENGTH.