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db_command.h revision 1.4 
      1 /*
      2  * Mach Operating System
      3  * Copyright (c) 1991,1990 Carnegie Mellon University
      4  * All Rights Reserved.
      5  *
      6  * Permission to use, copy, modify and distribute this software and its
      7  * documentation is hereby granted, provided that both the copyright
      8  * notice and this permission notice appear in all copies of the
      9  * software, derivative works or modified versions, and any portions
     10  * thereof, and that both notices appear in supporting documentation.
     11  *
     12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
     13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     15  *
     16  * Carnegie Mellon requests users of this software to return to
     17  *
     18  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     19  *  School of Computer Science
     20  *  Carnegie Mellon University
     21  *  Pittsburgh PA 15213-3890
     22  *
     23  * any improvements or extensions that they make and grant Carnegie the
     24  * rights to redistribute these changes.
     25  *
     26  *	Author: David B. Golub, Carnegie Mellon University
     27  *	Date:	7/90
     28  *	$Id: db_command.h,v 1.4 1994/03/23 20:00:57 pk Exp $
     29  */
     30 
     31 /*
     32  * Command loop declarations.
     33  */
     34 #include <sys/param.h>
     35 #include <sys/proc.h>
     36 #include <machine/db_machdep.h>
     37 
     38 extern void	db_command_loop();
     39 extern void	db_skip_to_eol();
     40 
     41 extern void	db_error(/* char * */);	/* report error */
     42 
     43 extern db_addr_t	db_dot;		/* current location */
     44 extern db_addr_t	db_last_addr;	/* last explicit address typed */
     45 extern db_addr_t	db_prev;	/* last address examined
     46 					   or written */
     47 extern db_addr_t	db_next;	/* next address to be examined
     48 					   or written */
     49 
     50 /*
     51  * Command table
     52  */
     53 struct db_command {
     54 	char		*name;		/* command name */
     55 	void		(*fcn)();	/* function to call */
     56 	int		flag;		/* extra info: */
     57 #define	CS_OWN		0x1		/* non-standard syntax */
     58 #define	CS_MORE		0x2		/* standard syntax, but may have other
     59 					   words at end */
     60 #define	CS_SET_DOT	0x100		/* set dot after command */
     61 	struct db_command *more;	/* another level of command */
     62 };
     63