sys/kern/subr_kcore.c

   1 /*
   2  * Copyright (c) 2004 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Joerg Sonnenberger <joerg@bec.de>.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 /*
  36  * This file is shared between the kernel and libkcore and they have
  37  * to be kept synchronized.
  38  */
  39
  40 #define _KERNEL_STRUCTURES
  41
  42 #include <sys/param.h>
  43 #include <sys/file.h>
  44 #include <sys/kcore.h>
  45 #include <sys/kinfo.h>
  46
  47 #ifdef _KERNEL
  48 #  include <sys/systm.h>
  49 #  include <sys/proc.h>
  50 #else
  51 #  include <string.h>
  52 #endif
  53
  54 /*
  55  * MPSAFE - caller must hold requisit spinlocks
  56  */
  57 void
  58 kcore_make_file(struct kinfo_file *ufile, struct file *kfile,
  59                 pid_t pid, uid_t owner, int n)
  60 {
  61         bzero(ufile, sizeof(*ufile));
  62         ufile->f_size = sizeof(*ufile);
  63         ufile->f_pid = pid;
  64         ufile->f_uid = owner;
  65
  66         ufile->f_fd = n;
  67         ufile->f_file = kfile;
  68         ufile->f_data = kfile->f_data;
  69         ufile->f_type = kfile->f_type;
  70         ufile->f_count = kfile->f_count;
  71         ufile->f_msgcount = kfile->f_msgcount;
  72         ufile->f_offset = kfile->f_offset;
  73         ufile->f_flag = kfile->f_flag;
  74 }