FreeBSD/Linux Kernel Cross Reference
sys/compat/ia32/ia32_reg.h

     /*-
      * 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
     * $FreeBSD$
     */
    
    #ifndef _COMPAT_IA32_IA32_REG_H_
    #define _COMPAT_IA32_IA32_REG_H_
    
    /*
     * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
     */
    struct reg32 {
            unsigned int    r_fs;
            unsigned int    r_es;
            unsigned int    r_ds;
            unsigned int    r_edi;
            unsigned int    r_esi;
            unsigned int    r_ebp;
            unsigned int    r_isp;
            unsigned int    r_ebx;
            unsigned int    r_edx;
            unsigned int    r_ecx;
            unsigned int    r_eax;
            unsigned int    r_trapno;
            unsigned int    r_err;
            unsigned int    r_eip;
            unsigned int    r_cs;
            unsigned int    r_eflags;
            unsigned int    r_esp;
            unsigned int    r_ss;
            unsigned int    r_gs;
    };
    
    /*
     * Register set accessible via /proc/$pid/fpregs.
     */
    struct fpreg32 {
            unsigned int    fpr_env[7];
            unsigned char   fpr_acc[8][10];
            unsigned int    fpr_ex_sw;
            unsigned char   fpr_pad[64];
    };
    
    /*
     * Register set accessible via /proc/$pid/dbregs.
     */
    struct dbreg32 {
            unsigned int  dr[8];    /* debug registers */
    };
    
    /* Environment information of floating point unit */
    struct env87 {
            int     en_cw;          /* control word (16bits) */
            int     en_sw;          /* status word (16bits) */
            int     en_tw;          /* tag word (16bits) */
            int     en_fip;         /* floating point instruction pointer */
            u_short en_fcs;         /* floating code segment selector */
            u_short en_opcode;      /* opcode last executed (11 bits ) */
            int     en_foo;         /* floating operand offset */
            int     en_fos;         /* floating operand segment selector */
    };
    
    #ifdef __ia64__
    /* Layout of an x87 fpu register (amd64 gets this elsewhere) */
    struct fpacc87 {
            u_char  fp_bytes[10];
    };
    #endif
    
   /* Floating point context */
   struct save87 {
           struct  env87 sv_env;   /* floating point control/status */
           struct  fpacc87 sv_ac[8];       /* accumulator contents, 0-7 */
           u_char  sv_pad0[4];     /* padding for (now unused) saved status word */
           u_char  sv_pad[64];     /* padding; used by emulators */
   };
   
   
   /*
    * Alternative layouts for <sys/procfs.h>
    * Used in core dumps, the reason for this file existing.
    */
   struct prstatus32 {
           int     pr_version;
           u_int   pr_statussz;
           u_int   pr_gregsetsz;
           u_int   pr_fpregsetsz;
           int     pr_osreldate;
           int     pr_cursig;
           pid_t   pr_pid;
           struct reg32 pr_reg;
   };
   
   struct prpsinfo32 {
           int     pr_version;
           u_int   pr_psinfosz;
           char    pr_fname[PRFNAMESZ+1];
           char    pr_psargs[PRARGSZ+1];
   };
   
   /*
    * Wrappers and converters.
    */
   int     fill_regs32(struct thread *, struct reg32 *);
   int     set_regs32(struct thread *, struct reg32 *);
   int     fill_fpregs32(struct thread *, struct fpreg32 *);
   int     set_fpregs32(struct thread *, struct fpreg32 *);
   int     fill_dbregs32(struct thread *, struct dbreg32 *);
   int     set_dbregs32(struct thread *, struct dbreg32 *);
   
   #endif /* !_COMPAT_IA32_IA32_REG_H_ */

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