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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: db_break.h,v 1.8 2002/03/14 01:26:51 millert Exp $	*/
/*	$NetBSD: db_break.h,v 1.8 1996/02/05 01:56:52 christos Exp $	*/

/* 
 * Mach Operating System
 * Copyright (c) 1993,1992,1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 *
 *	Author: David B. Golub, Carnegie Mellon University
 *	Date:	7/90
 */

#ifndef	_DDB_DB_BREAK_H_
#define	_DDB_DB_BREAK_H_

#include <uvm/uvm_extern.h>

/*
 * Breakpoints.
 */
typedef struct db_breakpoint {
	struct vm_map *map;			/* in this map */
	db_addr_t address;		/* set here */
	int	init_count;		/* number of times to skip bkpt */
	int	count;			/* current count */
	int	flags;			/* flags: */
#define	BKPT_SINGLE_STEP	0x2	    /* to simulate single step */
#define	BKPT_TEMP		0x4	    /* temporary */
	int	bkpt_inst;		/* saved instruction at bkpt */
	struct db_breakpoint *link;	/* link in in-use or free chain */
} *db_breakpoint_t;

db_breakpoint_t db_breakpoint_alloc(void);
void db_breakpoint_free(db_breakpoint_t);
void db_set_breakpoint(struct vm_map *, db_addr_t, int);
void db_delete_breakpoint(struct vm_map *, db_addr_t);
db_breakpoint_t db_find_breakpoint(struct vm_map *, db_addr_t);
db_breakpoint_t db_find_breakpoint_here(db_addr_t);
void db_set_breakpoints(void);
void db_clear_breakpoints(void);
db_breakpoint_t db_set_temp_breakpoint(db_addr_t);
void db_delete_temp_breakpoint(db_breakpoint_t);
void db_list_breakpoints(void);
void db_delete_cmd(db_expr_t, int, db_expr_t, char *);
void db_breakpoint_cmd(db_expr_t, int, db_expr_t, char *);
void db_listbreak_cmd(db_expr_t, int, db_expr_t, char *);
boolean_t db_map_equal(struct vm_map *, struct vm_map *);
boolean_t db_map_current(struct vm_map *);
struct vm_map *db_map_addr(vaddr_t);

#endif	/* _DDB_DB_BREAK_H_ */