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 * $FreeBSD$ 35 */ 36 37 #ifndef _MACHINE_PCB_H_ 38 #define _MACHINE_PCB_H_ 39 40 #ifndef LOCORE 41 42 struct trapframe; 43 44 struct pcb { 45 uint64_t pcb_ra; /* Return address */ 46 uint64_t pcb_sp; /* Stack pointer */ 47 uint64_t pcb_gp; /* Global pointer */ 48 uint64_t pcb_tp; /* Thread pointer */ 49 uint64_t pcb_t[7]; /* Temporary registers */ 50 uint64_t pcb_s[12]; /* Saved registers */ 51 uint64_t pcb_a[8]; /* Argument registers */ 52 uint64_t pcb_x[32][2]; /* Floating point registers */ 53 uint64_t pcb_fcsr; /* Floating point control reg */ 54 uint64_t pcb_fpflags; /* Floating point flags */ 55 #define PCB_FP_STARTED 0x1 56 #define PCB_FP_USERMASK 0x1 57 uint64_t pcb_sepc; /* Supervisor exception pc */ 58 vm_offset_t pcb_onfault; /* Copyinout fault handler */ 59 }; 60 61 #ifdef _KERNEL 62 void makectx(struct trapframe *tf, struct pcb *pcb); 63 int savectx(struct pcb *pcb) __returns_twice; 64 #endif 65 66 #endif /* !LOCORE */ 67 68 #endif /* !_MACHINE_PCB_H_ */ 69