/*-
 * Copyright (c) 2003 Peter Wemm.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * William Jolitz.
 *
 * 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *      from: @(#)reg.h 5.5 (Berkeley) 1/18/91
 * $FreeBSD: src/sys/amd64/include/reg.h,v 1.35 2004/04/05 23:55:14 imp Exp $
 */

#ifndef _CPU_REG_H_
#define _CPU_REG_H_

/*
 * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
 */
struct reg {
        register_t      r_rdi;
        register_t      r_rsi;
        register_t      r_rdx;
        register_t      r_rcx;
        register_t      r_r8;
        register_t      r_r9;
        register_t      r_rax;
        register_t      r_rbx;
        register_t      r_rbp;
        register_t      r_r10;
        register_t      r_r11;
        register_t      r_r12;
        register_t      r_r13;
        register_t      r_r14;
        register_t      r_r15;
        register_t      r_xflags;
        register_t      r_trapno;
        register_t      r_addr;
        register_t      r_flags;
        register_t      r_err;
        register_t      r_rip;
        register_t      r_cs;
        register_t      r_rflags;
        register_t      r_rsp;
        register_t      r_ss;
};

/*
 * Register set accessible via /proc/$pid/fpregs.
 */
struct fpreg {
        /*
         * XXX should get struct from fpu.h.  Here we give a slightly
         * simplified struct.  This may be too much detail.  Perhaps
         * an array of unsigned longs is best.
         */
        unsigned long   fpr_env[4];
        unsigned char   fpr_acc[8][16];
        unsigned char   fpr_xacc[16][16];
        unsigned long   fpr_spare[12];
};

/*
 * Register set accessible via /proc/$pid/dbregs.
 */
struct dbreg {
        unsigned long  dr[16];  /* debug registers */
                                /* Index 0-3: debug address registers */
                                /* Index 4-5: reserved */
                                /* Index 6: debug status */
                                /* Index 7: debug control */
                                /* Index 8-15: reserved */
};

#define DBREG_DR7_EXEC      0x00      /* break on execute       */
#define DBREG_DR7_WRONLY    0x01      /* break on write         */
#define DBREG_DR7_RDWR      0x03      /* break on read or write */
#define DBREG_DRX(d,x) ((d)->dr[(x)]) /* reference dr0 - dr15 by
                                         register number */
#endif /* !_CPU_REG_H_ */