1/* MN10300 Exception frame layout and ptrace constants
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_PTRACE_H
12#define _ASM_PTRACE_H
13
14#define PT_A3		0
15#define PT_A2		1
16#define PT_D3		2
17#define	PT_D2		3
18#define PT_MCVF		4
19#define	PT_MCRL		5
20#define PT_MCRH		6
21#define	PT_MDRQ		7
22#define	PT_E1		8
23#define	PT_E0		9
24#define	PT_E7		10
25#define	PT_E6		11
26#define	PT_E5		12
27#define	PT_E4		13
28#define	PT_E3		14
29#define	PT_E2		15
30#define	PT_SP		16
31#define	PT_LAR		17
32#define	PT_LIR		18
33#define	PT_MDR		19
34#define	PT_A1		20
35#define	PT_A0		21
36#define	PT_D1		22
37#define	PT_D0		23
38#define PT_ORIG_D0	24
39#define	PT_EPSW		25
40#define	PT_PC		26
41#define NR_PTREGS	27
42
43/*
44 * This defines the way registers are stored in the event of an exception
45 * - the strange order is due to the MOVM instruction
46 */
47struct pt_regs {
48	unsigned long		a3;		/* syscall arg 3 */
49	unsigned long		a2;		/* syscall arg 4 */
50	unsigned long		d3;		/* syscall arg 5 */
51	unsigned long		d2;		/* syscall arg 6 */
52	unsigned long		mcvf;
53	unsigned long		mcrl;
54	unsigned long		mcrh;
55	unsigned long		mdrq;
56	unsigned long		e1;
57	unsigned long		e0;
58	unsigned long		e7;
59	unsigned long		e6;
60	unsigned long		e5;
61	unsigned long		e4;
62	unsigned long		e3;
63	unsigned long		e2;
64	unsigned long		sp;
65	unsigned long		lar;
66	unsigned long		lir;
67	unsigned long		mdr;
68	unsigned long		a1;
69	unsigned long		a0;		/* syscall arg 1 */
70	unsigned long		d1;		/* syscall arg 2 */
71	unsigned long		d0;		/* syscall ret */
72	struct pt_regs		*next;		/* next frame pointer */
73	unsigned long		orig_d0;	/* syscall number */
74	unsigned long		epsw;
75	unsigned long		pc;
76};
77
78/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
79#define PTRACE_GETREGS            12
80#define PTRACE_SETREGS            13
81#define PTRACE_GETFPREGS          14
82#define PTRACE_SETFPREGS          15
83
84/* options set using PTRACE_SETOPTIONS */
85#define PTRACE_O_TRACESYSGOOD     0x00000001
86
87#ifdef __KERNEL__
88
89#define user_mode(regs)			(((regs)->epsw & EPSW_nSL) == EPSW_nSL)
90#define instruction_pointer(regs)	((regs)->pc)
91#define user_stack_pointer(regs)	((regs)->sp)
92
93#define arch_has_single_step()	(1)
94
95#define profile_pc(regs) ((regs)->pc)
96
97#endif /* __KERNEL__  */
98#endif /* _ASM_PTRACE_H */
99