extern int target_read_string (CORE_ADDR, char **, int, int *);
-extern int target_read_memory (CORE_ADDR memaddr, char *myaddr, int len);
+extern int target_read_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len);
-extern int target_write_memory (CORE_ADDR memaddr, char *myaddr, int len);
+extern int target_write_memory (CORE_ADDR memaddr, const bfd_byte *myaddr,
+ int len);
extern int xfer_memory (CORE_ADDR, char *, int, int,
struct mem_attrib *, struct target_ops *);