memory.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon 
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        memory.h,v $
   29  * Revision 2.2  93/11/17  19:06:10  dbg
   30  *      Created.
   31  *      [93/09/28            dbg]
   32  * 
   33  */
   34 
   35 #ifndef _KERN_MEMORY_H_
   36 #define _KERN_MEMORY_H_
   37 
   38 /*
   39  *      Clear a region of memory
   40  */
   41 #ifndef bzero                           /* may be builtin */
   42 extern void bzero(
   43         void *          dest,
   44         unsigned long   size);
   45 #endif
   46 
   47 /*
   48  *      Copy one region of memory to another
   49  */
   50 #ifndef bcopy                           /* may be builtin */
   51 extern void bcopy(
   52         const void *    src,
   53         void *          dest,
   54         unsigned long   size);
   55 #endif
   56 
   57 /*
   58  * Copy memory from user to kernel.
   59  * Returns non-zero if user memory inaccessible.
   60  */
   61 extern int copyin(
   62         const void *    user_src,
   63         void *          kernel_dest,
   64         unsigned long   size);
   65 
   66 /*
   67  * Copy memory from kernel to user.
   68  * Returns non-zero if user memory inaccessible.
   69  */
   70 extern int copyout(
   71         const void *    kernel_src,
   72         void *          user_dest,
   73         unsigned long   size);
   74 
   75 /*
   76  * Same as copyin, but memory must be 32-bit aligned.
   77  */
   78 extern int copyinmsg(
   79         const void *    user_src,
   80         void *          kernel_dest,
   81         unsigned long   size);
   82 
   83 /*
   84  * Same as copyout, but memory must be 32-bit aligned.
   85  */
   86 extern int copyoutmsg(
   87         const void *    kernel_src,
   88         void *          user_dest,
   89         unsigned long   size);
   90 
   91 #endif  /* _KERN_MEMORY_H_ */

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

FreeBSD/Linux Kernel Cross Reference sys/kern/memory.h

FreeBSD/Linux Kernel Cross Reference
sys/kern/memory.h