The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/i386/include/proc.h

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 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  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  *      from: @(#)proc.h        7.1 (Berkeley) 5/15/91
   30  * $FreeBSD: releng/8.0/sys/i386/include/proc.h 182961 2008-09-12 09:53:29Z kib $
   31  */
   32 
   33 #ifndef _MACHINE_PROC_H_
   34 #define _MACHINE_PROC_H_
   35 
   36 #include <machine/segments.h>
   37 
   38 struct proc_ldt {
   39         caddr_t ldt_base;
   40         int     ldt_len;
   41         int     ldt_refcnt;
   42         u_long  ldt_active;
   43         struct  segment_descriptor ldt_sd;
   44 };
   45 
   46 /*
   47  * Machine-dependent part of the proc structure for i386.
   48  * Table of MD locks:
   49  *       t - Descriptor tables lock
   50  */
   51 struct mdthread {
   52         int     md_spinlock_count;      /* (k) */
   53         register_t md_saved_flags;      /* (k) */
   54 };
   55 
   56 struct mdproc {
   57         struct proc_ldt *md_ldt;        /* (t) per-process ldt */
   58 };
   59 
   60 #ifdef  _KERNEL
   61 
   62 /* Get the current kernel thread stack usage. */
   63 #define GET_STACK_USAGE(total, used) do {                               \
   64         struct thread   *td = curthread;                                \
   65         (total) = td->td_kstack_pages * PAGE_SIZE;                      \
   66         (used) = (char *)td->td_kstack +                                \
   67             td->td_kstack_pages * PAGE_SIZE -                           \
   68             (char *)&td;                                                \
   69 } while (0)
   70 
   71 void    set_user_ldt(struct mdproc *);
   72 struct  proc_ldt *user_ldt_alloc(struct mdproc *, int);
   73 void    user_ldt_free(struct thread *);
   74 void    user_ldt_deref(struct proc_ldt *pldt);
   75 
   76 extern struct mtx dt_lock;
   77 
   78 #endif  /* _KERNEL */
   79 
   80 #endif /* !_MACHINE_PROC_H_ */

Cache object: 85e96cd2ce39406605eef6d28f47c3bc


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.