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Annotation of Net2/sys/user.h, revision 1.1.1.2

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:  *
1.1.1.2 ! root       33:  *     from: @(#)user.h        7.19 (Berkeley) 5/4/91
        !            34:  *     user.h,v 1.3 1993/05/20 16:23:45 cgd Exp
1.1       root       35:  */
                     36: 
1.1.1.2 ! root       37: #ifndef _SYS_USER_H_
        !            38: #define _SYS_USER_H_
        !            39: 
1.1       root       40: #include <machine/pcb.h>
                     41: #ifndef KERNEL
                     42: /* stuff that *used* to be included by user.h, or is now needed */
                     43: #include <errno.h>
                     44: #include <sys/time.h>
                     45: #include <sys/resource.h>
                     46: #include <sys/ucred.h>
                     47: #include <sys/uio.h>
                     48: #endif
                     49: #include <sys/resourcevar.h>
                     50: #include <sys/signalvar.h>
                     51: #include <vm/vm.h>             /* XXX */
                     52: #include <sys/kinfo_proc.h>
                     53: 
                     54: 
                     55: /*
                     56:  * Per process structure containing data that isn't needed in core
                     57:  * when the process isn't running (esp. when swapped out).
                     58:  * This structure may or may not be at the same kernel address
                     59:  * in all processes.
                     60:  */
                     61:  
                     62: struct user {
                     63:        struct  pcb u_pcb;
                     64: 
                     65:        struct  sigacts u_sigacts;      /* p_sigacts points here (use it!) */
                     66:        struct  pstats u_stats;         /* p_stats points here (use it!) */
                     67: 
                     68:        /*
                     69:         * Remaining fields only for core dump and/or ptrace--
                     70:         * not valid at other times!
                     71:         */
                     72:        struct  kinfo_proc u_kproc;     /* proc + eproc */
                     73: };
                     74: 
                     75: /*
                     76:  * Redefinitions to make the debuggers happy for now...
                     77:  * This subterfuge brought to you by coredump() and procxmt().
                     78:  * These fields are *only* valid at those times!
                     79:  */
                     80: #define        U_ar0   u_kproc.kp_proc.p_regs  /* copy of curproc->p_regs */
                     81: #define        U_tsize u_kproc.kp_eproc.e_vm.vm_tsize
                     82: #define        U_dsize u_kproc.kp_eproc.e_vm.vm_dsize
                     83: #define        U_ssize u_kproc.kp_eproc.e_vm.vm_ssize
                     84: #define        U_sig   u_sigacts.ps_sig
                     85: #define        U_code  u_sigacts.ps_code
                     86: 
                     87: #ifndef KERNEL
                     88: #define        u_ar0   U_ar0
                     89: #define        u_tsize U_tsize
                     90: #define        u_dsize U_dsize
                     91: #define        u_ssize U_ssize
                     92: #define        u_sig   U_sig
                     93: #define        u_code  U_code
                     94: #endif /* KERNEL */
1.1.1.2 ! root       95: 
        !            96: #endif /* !_SYS_USER_H_ */

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