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
35#ifndef _MACHINE_FRAME_H_
36#define _MACHINE_FRAME_H_
37
38#ifndef LOCORE
39
40#include <sys/signal.h>
41#include <sys/ucontext.h>
42
43/*
44 * NOTE: keep this structure in sync with struct reg and struct mcontext.
45 */
46struct trapframe {
47 uint64_t tf_ra;
48 uint64_t tf_sp;
49 uint64_t tf_gp;
50 uint64_t tf_tp;
51 uint64_t tf_t[7];
52 uint64_t tf_s[12];
53 uint64_t tf_a[8];
54 uint64_t tf_sepc;
55 uint64_t tf_sstatus;
56 uint64_t tf_stval;
57 uint64_t tf_scause;
58};
59
60#ifdef _KERNEL
61#define TF_SIZE (roundup2(sizeof(struct trapframe), STACKALIGNBYTES + 1))
62#endif
63
64/*
65 * Signal frame. Pushed onto user stack before calling sigcode.
66 */
67struct sigframe {
68 siginfo_t sf_si; /* actual saved siginfo */
69 ucontext_t sf_uc; /* actual saved ucontext */
70};
71
72#ifdef _KERNEL
73/*
74 * Kernel frame. Reserved near the top of kernel stacks for saving kernel
75 * state while in userspace.
76 */
77struct kernframe {
78 register_t kf_tp;
79};
80#endif
81
82#endif /* !LOCORE */
83
84/* Definitions for syscalls */
85#define NARGREG 8 /* 8 args in regs */
86
87#endif /* !_MACHINE_FRAME_H_ */