FreeBSD/Linux Kernel Cross Reference
sys/sys/user.h

     /*
      * Copyright (c) 1982, 1986, 1989, 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 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.
     *
     *      @(#)user.h      8.2 (Berkeley) 9/23/93
     * $FreeBSD$
     */
    
    #ifndef _SYS_USER_H_
    #define _SYS_USER_H_
    
    #include <machine/pcb.h>
    #ifndef KERNEL
    /* stuff that *used* to be included by user.h, or is now needed */
    #include <sys/errno.h>
    #include <sys/time.h>
    #include <sys/resource.h>
    #include <sys/ucred.h>
    #include <sys/uio.h>
    #include <sys/proc.h>
    #include <vm/vm.h>              /* XXX */
    #include <vm/vm_param.h>        /* XXX */
    #include <vm/pmap.h>            /* XXX */
    #include <sys/lock.h>           /* XXX */
    #include <vm/vm_map.h>          /* XXX */
    #endif /* !KERNEL */
    #ifndef _SYS_RESOURCEVAR_H_
    #include <sys/resourcevar.h>
    #endif
    #ifndef _SYS_SIGNALVAR_H_
    #include <sys/signalvar.h>
    #endif
    
    /*
     * KERN_PROC subtype ops return arrays of augmented proc structures:
     */
    struct kinfo_proc {
            struct  proc kp_proc;                   /* proc structure */
            struct  eproc {
                    struct  proc *e_paddr;          /* address of proc */
                    struct  session *e_sess;        /* session pointer */
                    struct  pcred e_pcred;          /* process credentials */
                    struct  ucred e_ucred;          /* current credentials */
                    struct  procsig e_procsig;      /* shared signal structure */
                    struct  vmspace e_vm;           /* address space */
                    pid_t   e_ppid;                 /* parent process id */
                    pid_t   e_pgid;                 /* process group id */
                    short   e_jobc;                 /* job control counter */
                    dev_t   e_tdev;                 /* controlling tty dev */
                    pid_t   e_tpgid;                /* tty process group id */
                    struct  session *e_tsess;       /* tty session pointer */
    #define WMESGLEN        7
                    char    e_wmesg[WMESGLEN+1];    /* wchan message */
                    segsz_t e_xsize;                /* text size */
                    short   e_xrssize;              /* text rss */
                    short   e_xccount;              /* text references */
                    short   e_xswrss;
                    long    e_flag;
    #define EPROC_CTTY      0x01    /* controlling tty vnode active */
    #define EPROC_SLEADER   0x02    /* session leader */
                    char    e_login[roundup(MAXLOGNAME, sizeof(long))];     /* setlogin() name */
                    long    e_spare[2];
            } kp_eproc;
    };
    void fill_eproc __P((struct proc *, struct eproc *));
    
    
    /*
     * Per process structure containing data that isn't needed in core
     * when the process isn't running (esp. when swapped out).
     * This structure may or may not be at the same kernel address
    * in all processes.
    */
   
   struct  user {
           struct  pcb u_pcb;
           struct  sigacts u_sigacts;      /* p_sigacts points here (use it!) */
           struct  pstats u_stats;         /* p_stats points here (use it!) */
           /*
            * Remaining fields only for core dump and/or ptrace--
            * not valid at other times!
            */
           struct  kinfo_proc u_kproc;     /* proc + eproc */
           struct  md_coredump u_md;       /* machine dependent glop */
   };
   
   /*
    * Redefinitions to make the debuggers happy for now...  This subterfuge
    * brought to you by coredump() and trace_req().  These fields are *only*
    * valid at those times!
    */
   #ifdef __i386__
   #define U_ar0   u_kproc.kp_proc.p_md.md_regs /* copy of curproc->p_md.md_regs */
   #endif
   #ifdef __alpha__
   #define U_ar0   u_kproc.kp_proc.p_md.md_tf /* copy of curproc->p_md.md_tf */
   #endif
   #define U_tsize u_kproc.kp_eproc.e_vm.vm_tsize
   #define U_dsize u_kproc.kp_eproc.e_vm.vm_dsize
   #define U_ssize u_kproc.kp_eproc.e_vm.vm_ssize
   #define U_sig   u_kproc.kp_proc.p_sig
   #define U_code  u_kproc.kp_proc.p_code
   
   #ifndef KERNEL
   #define u_ar0   U_ar0
   #define u_tsize U_tsize
   #define u_dsize U_dsize
   #define u_ssize U_ssize
   #define u_sig   U_sig
   #define u_code  U_code
   #endif /* KERNEL */
   
   #endif

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