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 40 struct trapframe; 41 42 struct 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 57 void makectx(struct trapframe *tf, struct pcb *pcb); 58 int savectx(struct pcb *pcb) __returns_twice; 59 #endif 60 61 #endif /* !LOCORE */ 62 63 #endif /* !_MACHINE_PCB_H_ */ 64