text: /*-
   * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
   * All rights reserved.
   *
   * Portions of this software were developed by SRI International and the
   * University of Cambridge Computer Laboratory under DARPA/AFRL contract
   * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
   *
   * Portions of this software were developed by the University of Cambridge
   * Computer Laboratory as part of the CTSRD Project, with support from the
   * UK Higher Education Innovation Fund (HEIF).
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD$
   */
  
  #ifndef	_MACHINE_REG_H_
  #define	_MACHINE_REG_H_
  
  struct reg {
  	uint64_t ra;		/* return address */
  	uint64_t sp;		/* stack pointer */
  	uint64_t gp;		/* global pointer */
  	uint64_t tp;		/* thread pointer */
  	uint64_t t[7];		/* temporaries */
  	uint64_t s[12];		/* saved registers */
  	uint64_t a[8];		/* function arguments */
  	uint64_t sepc;		/* exception program counter */
  	uint64_t sstatus;	/* status register */
  };
  
  struct fpreg {
  	int dummy;
  };
  
  struct dbreg {
  	int dummy;
  };
  
  #ifdef _KERNEL
  /*
   * XXX these interfaces are MI, so they should be declared in a MI place.
   */
  int	fill_regs(struct thread *, struct reg *);
  int	set_regs(struct thread *, struct reg *);
  int	fill_fpregs(struct thread *, struct fpreg *);
  int	set_fpregs(struct thread *, struct fpreg *);
  int	fill_dbregs(struct thread *, struct dbreg *);
  int	set_dbregs(struct thread *, struct dbreg *);
  #endif
  
  #endif /* !_MACHINE_REG_H_ */
  