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: releng/5.2/sys/sys/user.h 114983 2003-05-13 20:36:02Z jhb $
     */
    
    #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/queue.h>
    #include <sys/_lock.h>
    #include <sys/_mutex.h>
    #include <sys/proc.h>
    #include <vm/vm.h>              /* XXX */
    #include <vm/vm_param.h>        /* XXX */
    #include <vm/pmap.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 selected proc structure entries:
     *
     * When adding new fields to this structure, ALWAYS add them at the end
     * and decrease the size of the spare field by the amount of space that
     * you are adding.  Byte aligned data should be added to the ki_sparestring
     * space; other entries should be added to the ki_spare space. Always
     * verify that sizeof(struct kinfo_proc) == KINFO_PROC_SIZE when you are
     * done. If you change the size of this structure, many programs will stop
     * working! Once you have added the new field, you will need to add code
     * to initialize it in two places: kern/kern_proc.c in the function
     * fill_kinfo_proc and in lib/libkvm/kvm_proc.c in the function kvm_proclist.
     */
    #if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__) || \
        defined(__amd64__)
    #define KINFO_PROC_SIZE 912             /* the correct size for kinfo_proc */
    #endif
    #ifdef  __i386__
    #define KINFO_PROC_SIZE 648             /* the correct size for kinfo_proc */
    #endif
    #ifdef  __powerpc__
    #define KINFO_PROC_SIZE 656
    #endif
    #ifndef KINFO_PROC_SIZE
    #error  "Unknown architecture"
    #endif
    #define WMESGLEN        8               /* size of returned wchan message */
    #define LOCKNAMELEN     8               /* size of returned lock name */
    #define OCOMMLEN        16              /* size of returned ki_ocomm name */
    #define COMMLEN         19              /* size of returned ki_comm name */
    #define KI_NGROUPS      16              /* number of groups in ki_groups */
    #define LOGNAMELEN      17              /* size of returned ki_login */
    
    struct kinfo_proc {
            int     ki_structsize;          /* size of this structure */
            int     ki_layout;              /* reserved: layout identifier */
           struct  pargs *ki_args;         /* address of command arguments */
           struct  proc *ki_paddr;         /* address of proc */
           struct  user *ki_addr;          /* kernel virtual addr of u-area */
           struct  vnode *ki_tracep;       /* pointer to trace file */
           struct  vnode *ki_textvp;       /* pointer to executable file */
           struct  filedesc *ki_fd;        /* pointer to open file info */
           struct  vmspace *ki_vmspace;    /* pointer to kernel vmspace struct */
           void    *ki_wchan;              /* sleep address */
           pid_t   ki_pid;                 /* Process identifier */
           pid_t   ki_ppid;                /* parent process id */
           pid_t   ki_pgid;                /* process group id */
           pid_t   ki_tpgid;               /* tty process group id */
           pid_t   ki_sid;                 /* Process session ID */
           pid_t   ki_tsid;                /* Terminal session ID */
           short   ki_jobc;                /* job control counter */
           udev_t  ki_tdev;                /* controlling tty dev */
           sigset_t ki_siglist;            /* Signals arrived but not delivered */
           sigset_t ki_sigmask;            /* Current signal mask */
           sigset_t ki_sigignore;          /* Signals being ignored */
           sigset_t ki_sigcatch;           /* Signals being caught by user */
           uid_t   ki_uid;                 /* effective user id */
           uid_t   ki_ruid;                /* Real user id */
           uid_t   ki_svuid;               /* Saved effective user id */
           gid_t   ki_rgid;                /* Real group id */
           gid_t   ki_svgid;               /* Saved effective group id */
           short   ki_ngroups;             /* number of groups */
           gid_t   ki_groups[KI_NGROUPS];  /* groups */
           vm_size_t ki_size;              /* virtual size */
           segsz_t ki_rssize;              /* current resident set size in pages */
           segsz_t ki_swrss;               /* resident set size before last swap */
           segsz_t ki_tsize;               /* text size (pages) XXX */
           segsz_t ki_dsize;               /* data size (pages) XXX */
           segsz_t ki_ssize;               /* stack size (pages) */
           u_short ki_xstat;               /* Exit status for wait & stop signal */
           u_short ki_acflag;              /* Accounting flags */
           fixpt_t ki_pctcpu;              /* %cpu for process during ki_swtime */
           u_int   ki_estcpu;              /* Time averaged value of ki_cpticks */
           u_int   ki_slptime;             /* Time since last blocked */
           u_int   ki_swtime;              /* Time swapped in or out */
           u_int64_t ki_runtime;           /* Real time in microsec */
           struct  timeval ki_start;       /* starting time */
           struct  timeval ki_childtime;   /* time used by process children */
           long    ki_flag;                /* P_* flags */
           long    ki_kiflag;              /* KI_* flags (below) */
           int     ki_traceflag;           /* Kernel trace points */
           char    ki_stat;                /* S* process status */
           char    ki_nice;                /* Process "nice" value */
           char    ki_lock;                /* Process lock (prevent swap) count */
           char    ki_rqindex;             /* Run queue index */
           u_char  ki_oncpu;               /* Which cpu we are on */
           u_char  ki_lastcpu;             /* Last cpu we were on */
           char    ki_ocomm[OCOMMLEN+1];   /* command name */
           char    ki_wmesg[WMESGLEN+1];   /* wchan message */
           char    ki_login[LOGNAMELEN+1]; /* setlogin name */
           char    ki_lockname[LOCKNAMELEN+1]; /* lock name */
           char    ki_comm[COMMLEN+1];     /* command name */
           char    ki_sparestrings[85];    /* spare string space */
           struct  rusage ki_rusage;       /* process rusage statistics */
           long    ki_sflag;               /* PS_* flags */
           struct  priority ki_pri;        /* process priority */
           long    ki_tdflags;             /* XXXKSE kthread flag */
           struct  pcb *ki_pcb;            /* kernel virtual addr of pcb */
           void    *ki_kstack;             /* kernel virtual addr of stack */
           long    ki_spare[22];           /* spare constants */
   };
   void fill_kinfo_proc(struct proc *, struct kinfo_proc *);
   
   /* ki_sessflag values */
   #define KI_CTTY         0x00000001      /* controlling tty vnode active */
   #define KI_SLEADER      0x00000002      /* session leader */
   #define KI_LOCKBLOCK    0x00000004      /* proc blocked on lock ki_lockname */
   
   /*
    * Per process structure containing data that isn't needed in core
    * when the process isn't running (esp. when swapped out).
    */
   struct user {
           struct  pstats u_stats;         /* *p_stats */
           /*
            * Remaining field for a.out core dumps - not valid at other times!
            */
           struct  kinfo_proc u_kproc;     /* eproc */
   };
   
   #endif

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