1/*-
2 * Copyright (c) 2015-2016 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_PCB_H_
36#define _MACHINE_PCB_H_
37
38#ifndef LOCORE
39
40struct trapframe;
41
42struct pcb {
43 uint64_t pcb_ra; /* Return address */
44 uint64_t pcb_sp; /* Stack pointer */
45 uint64_t pcb_gp; /* Global pointer */
46 uint64_t pcb_tp; /* Thread pointer */
47 uint64_t pcb_s[12]; /* Saved registers */
48 uint64_t pcb_x[32][2]; /* Floating point registers */
49 uint64_t pcb_fcsr; /* Floating point control reg */
50 uint64_t pcb_fpflags; /* Floating point flags */
51#define PCB_FP_STARTED 0x1
52#define PCB_FP_USERMASK 0x1
53 vm_offset_t pcb_onfault; /* Copyinout fault handler */
54};
55
56#ifdef _KERNEL
57void makectx(struct trapframe *tf, struct pcb *pcb);
58int savectx(struct pcb *pcb) __returns_twice;
59#endif
60
61#endif /* !LOCORE */
62
63#endif /* !_MACHINE_PCB_H_ */