FreeBSD/Linux Kernel Cross Reference
sys/amd64/include/reg.h

     /*-
      * 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.
     * 4. 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: releng/9.0/sys/amd64/include/reg.h 218744 2011-02-16 17:50:21Z dchagin $
     */
    
    #ifndef _MACHINE_REG_H_
    #define _MACHINE_REG_H_
    
    #if defined(_KERNEL) && !defined(_STANDALONE)
    #include "opt_compat.h"
    #endif
    
    /*
     * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
     */
    struct reg {
            register_t      r_r15;
            register_t      r_r14;
            register_t      r_r13;
            register_t      r_r12;
            register_t      r_r11;
            register_t      r_r10;
            register_t      r_r9;
            register_t      r_r8;
            register_t      r_rdi;
            register_t      r_rsi;
            register_t      r_rbp;
            register_t      r_rbx;
            register_t      r_rdx;
            register_t      r_rcx;
            register_t      r_rax;
            uint32_t        r_trapno;
            uint16_t        r_fs;
            uint16_t        r_gs;
            uint32_t        r_err;
            uint16_t        r_es;
            uint16_t        r_ds;
            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_LOCAL_ENABLE  0x01
   #define DBREG_DR7_GLOBAL_ENABLE 0x02
   #define DBREG_DR7_LEN_1         0x00    /* 1 byte length          */
   #define DBREG_DR7_LEN_2         0x01
   #define DBREG_DR7_LEN_4         0x03
   #define DBREG_DR7_LEN_8         0x02
   #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_DR7_MASK(i)       (0xful << ((i) * 4 + 16) | 0x3 << (i) * 2)
   #define DBREG_DR7_SET(i, len, access, enable)                           \
           ((u_long)((len) << 2 | (access)) << ((i) * 4 + 16) | (enable) << (i) * 2)
   #define DBREG_DR7_GD            0x2000
   #define DBREG_DR7_ENABLED(d, i) (((d) & 0x3 << (i) * 2) != 0)
   #define DBREG_DR7_ACCESS(d, i)  ((d) >> ((i) * 4 + 16) & 0x3)
   #define DBREG_DR7_LEN(d, i)     ((d) >> ((i) * 4 + 18) & 0x3)
   
   #define DBREG_DRX(d,x)  ((d)->dr[(x)])  /* reference dr0 - dr15 by
                                              register number */
   
   #ifdef COMPAT_FREEBSD32
   #include <machine/fpu.h>
   #include <compat/ia32/ia32_reg.h>
   #endif
   
   #ifdef _KERNEL
   /*
    * XXX these interfaces are MI, so they should be declared in a MI place.
    */
   int     fill_regs(struct thread *, struct reg *);
   int     fill_frame_regs(struct trapframe *, 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_ */

Cache object: c105a106672578e20f81c81ce04b091c