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Annotation of Net2/sys/user.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)user.h      7.19 (Berkeley) 5/4/91
        !            34:  */
        !            35: 
        !            36: #include <machine/pcb.h>
        !            37: #ifndef KERNEL
        !            38: /* stuff that *used* to be included by user.h, or is now needed */
        !            39: #include <errno.h>
        !            40: #include <sys/time.h>
        !            41: #include <sys/resource.h>
        !            42: #include <sys/ucred.h>
        !            43: #include <sys/uio.h>
        !            44: #endif
        !            45: #include <sys/resourcevar.h>
        !            46: #include <sys/signalvar.h>
        !            47: #include <vm/vm.h>             /* XXX */
        !            48: #include <sys/kinfo_proc.h>
        !            49: 
        !            50: 
        !            51: /*
        !            52:  * Per process structure containing data that isn't needed in core
        !            53:  * when the process isn't running (esp. when swapped out).
        !            54:  * This structure may or may not be at the same kernel address
        !            55:  * in all processes.
        !            56:  */
        !            57:  
        !            58: struct user {
        !            59:        struct  pcb u_pcb;
        !            60: 
        !            61:        struct  sigacts u_sigacts;      /* p_sigacts points here (use it!) */
        !            62:        struct  pstats u_stats;         /* p_stats points here (use it!) */
        !            63: 
        !            64:        /*
        !            65:         * Remaining fields only for core dump and/or ptrace--
        !            66:         * not valid at other times!
        !            67:         */
        !            68:        struct  kinfo_proc u_kproc;     /* proc + eproc */
        !            69: };
        !            70: 
        !            71: /*
        !            72:  * Redefinitions to make the debuggers happy for now...
        !            73:  * This subterfuge brought to you by coredump() and procxmt().
        !            74:  * These fields are *only* valid at those times!
        !            75:  */
        !            76: #define        U_ar0   u_kproc.kp_proc.p_regs  /* copy of curproc->p_regs */
        !            77: #define        U_tsize u_kproc.kp_eproc.e_vm.vm_tsize
        !            78: #define        U_dsize u_kproc.kp_eproc.e_vm.vm_dsize
        !            79: #define        U_ssize u_kproc.kp_eproc.e_vm.vm_ssize
        !            80: #define        U_sig   u_sigacts.ps_sig
        !            81: #define        U_code  u_sigacts.ps_code
        !            82: 
        !            83: #ifndef KERNEL
        !            84: #define        u_ar0   U_ar0
        !            85: #define        u_tsize U_tsize
        !            86: #define        u_dsize U_dsize
        !            87: #define        u_ssize U_ssize
        !            88: #define        u_sig   U_sig
        !            89: #define        u_code  U_code
        !            90: #endif /* KERNEL */

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