extern int kdb_putword(unsigned long, unsigned long, size_t);
extern int kdbgetularg(const char *, unsigned long *);
-extern int kdb_set(int, const char **);
extern char *kdbgetenv(const char *);
-extern int kdbgetintenv(const char *, int *);
extern int kdbgetaddrarg(int, const char **, int*, unsigned long *,
long *, char **);
extern int kdbgetsymval(const char *, kdb_symtab_t *);