1227730Sraj/*-
2227730Sraj * Mach Operating System
3227730Sraj * Copyright (c) 1991,1990 Carnegie Mellon University
4227730Sraj * All Rights Reserved.
5227730Sraj *
6227730Sraj * Permission to use, copy, modify and distribute this software and its
7227730Sraj * documentation is hereby granted, provided that both the copyright
8227730Sraj * notice and this permission notice appear in all copies of the
9227730Sraj * software, derivative works or modified versions, and any portions
10227730Sraj * thereof, and that both notices appear in supporting documentation.
11227730Sraj *
12227730Sraj * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13227730Sraj * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14227730Sraj * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15227730Sraj *
16227730Sraj * Carnegie Mellon requests users of this software to return to
17227730Sraj *
18227730Sraj *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
19227730Sraj *  School of Computer Science
20227730Sraj *  Carnegie Mellon University
21227730Sraj *  Pittsburgh PA 15213-3890
22227730Sraj *
23227730Sraj * any improvements or extensions that they make and grant Carnegie Mellon
24227730Sraj * the rights to redistribute these changes.
25227730Sraj *
26227730Sraj *	from: FreeBSD: src/sys/i386/include/db_machdep.h,v 1.16 1999/10/04
27227730Sraj * $FreeBSD: releng/10.3/sys/sparc64/include/db_machdep.h 139825 2005-01-07 02:29:27Z imp $
28227730Sraj */
29227730Sraj
30227730Sraj#ifndef	_MACHINE_DB_MACHDEP_H_
31227730Sraj#define	_MACHINE_DB_MACHDEP_H_
32227730Sraj
33227730Sraj#include <machine/frame.h>
34227730Sraj#include <machine/trap.h>
35227730Sraj
36227730Sraj#define	BYTE_MSF	(1)
37227730Sraj
38227730Srajtypedef vm_offset_t	db_addr_t;
39227730Srajtypedef long		db_expr_t;
40227730Sraj
41227730Sraj#define	PC_REGS()	((db_addr_t)kdb_thrctx->pcb_pc)
42227730Sraj
43227730Sraj#define	BKPT_INST	(0x91d03001)
44227730Sraj#define	BKPT_SIZE	(4)
45227730Sraj#define	BKPT_SET(inst)	(BKPT_INST)
46227730Sraj
47227730Sraj#define	BKPT_SKIP do {							\
48227730Sraj	kdb_frame->tf_tpc = kdb_frame->tf_tnpc + 4;			\
49227730Sraj	kdb_frame->tf_tnpc += 8;					\
50227730Sraj} while (0)
51227730Sraj
52227730Sraj#define	db_clear_single_step	kdb_cpu_clear_singlestep
53227730Sraj#define	db_set_single_step	kdb_cpu_set_singlestep
54227730Sraj
55227730Sraj#define	IS_BREAKPOINT_TRAP(type, code)	(type == T_BREAKPOINT)
56227730Sraj#define	IS_WATCHPOINT_TRAP(type, code)	(0)
57227730Sraj
58227730Sraj#define	inst_trap_return(ins)	(0)
59227730Sraj#define	inst_return(ins)	(0)
60227730Sraj#define	inst_call(ins)		(0)
61227730Sraj#define	inst_load(ins)		(0)
62227730Sraj#define	inst_store(ins)		(0)
63227730Sraj
64227730Sraj#define	DB_SMALL_VALUE_MAX	(0x7fffffff)
65227730Sraj#define	DB_SMALL_VALUE_MIN	(-0x40001)
66227730Sraj
67227730Sraj#define	DB_ELFSIZE		64
68227730Sraj
69227730Sraj#endif /* !_MACHINE_DB_MACHDEP_H_ */
70227730Sraj