--- Gnu-Mach/ddb/db_variables.h	2020/09/02 04:45:52	1.1.1.2
+++ Gnu-Mach/ddb/db_variables.h	2020/09/02 04:48:23	1.1.1.3
@@ -32,6 +32,7 @@
 #define	_DB_VARIABLES_H_
 
 #include <kern/thread.h>
+#include <machine/db_machdep.h>
 
 /*
  * Debugger variables.
@@ -42,7 +43,7 @@ struct db_variable {
 	char	*name;		/* Name of variable */
 	db_expr_t *valuep;	/* pointer to value of variable */
 				/* function to call when reading/writing */
-	long	(*fcn)(struct db_variable *, db_expr_t *, int, db_var_aux_param_t);
+	void	(*fcn)(struct db_variable *, db_expr_t *, int, db_var_aux_param_t);
 	short	min_level;	/* number of minimum suffix levels */
 	short	max_level;	/* number of maximum suffix levels */
 	short	low;		/* low value of level 1 suffix */
@@ -50,7 +51,7 @@ struct db_variable {
 #define DB_VAR_GET	0
 #define DB_VAR_SET	1
 };
-#define	FCN_NULL	((long (*)())0)
+#define	FCN_NULL	((void (*)())0)
 
 #define DB_VAR_LEVEL	3	/* maximum number of suffix level */
 
@@ -80,6 +81,8 @@ extern struct db_variable	*db_eregs;
 
 extern int db_get_variable(db_expr_t *valuep);
 
-void db_set_cmd();
+void db_set_cmd(void);
+
+void db_read_write_variable(struct db_variable *, db_expr_t *, int, struct db_var_aux_param *);
 
 #endif	/* _DB_VARIABLES_H_ */