1/*-
2 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * Portions of this software were developed by SRI International and the
6 * University of Cambridge Computer Laboratory under DARPA/AFRL contract
7 * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
8 *
9 * Portions of this software were developed by the University of Cambridge
10 * Computer Laboratory as part of the CTSRD Project, with support from the
11 * UK Higher Education Innovation Fund (HEIF).
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $FreeBSD$
35 */
36
37#ifndef	_MACHINE_REG_H_
38#define	_MACHINE_REG_H_
39
40struct reg {
41	uint64_t ra;		/* return address */
42	uint64_t sp;		/* stack pointer */
43	uint64_t gp;		/* global pointer */
44	uint64_t tp;		/* thread pointer */
45	uint64_t t[7];		/* temporaries */
46	uint64_t s[12];		/* saved registers */
47	uint64_t a[8];		/* function arguments */
48	uint64_t sepc;		/* exception program counter */
49	uint64_t sstatus;	/* status register */
50};
51
52struct fpreg {
53	int dummy;
54};
55
56struct dbreg {
57	int dummy;
58};
59
60#ifdef _KERNEL
61/*
62 * XXX these interfaces are MI, so they should be declared in a MI place.
63 */
64int	fill_regs(struct thread *, struct reg *);
65int	set_regs(struct thread *, struct reg *);
66int	fill_fpregs(struct thread *, struct fpreg *);
67int	set_fpregs(struct thread *, struct fpreg *);
68int	fill_dbregs(struct thread *, struct dbreg *);
69int	set_dbregs(struct thread *, struct dbreg *);
70#endif
71
72#endif /* !_MACHINE_REG_H_ */
73