extern struct environ *inferior_environ;
-/* Character array containing an image of the inferior programs'
- registers. */
-
-extern char *registers;
-
-/* Character array containing the current state of each register
- (unavailable<0, valid=0, invalid>0). */
-
-extern signed char *register_valid;
-
extern void clear_proceed_status (void);
extern void proceed (CORE_ADDR, enum target_signal, int);