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


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FreeBSD/Linux Kernel Cross Reference
sys/i386/ibcs2/ibcs2_util.h

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    1 /*-
    2  * Copyright (c) 1994 Christos Zoulas
    3  * Copyright (c) 1995 Frank van der Linden
    4  * Copyright (c) 1995 Scott Bartram
    5  * All rights reserved.
    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  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. The name of the author may not be used to endorse or promote products
   16  *    derived from this software without specific prior written permission
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  *
   29  * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp
   30  * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp
   31  *
   32  * $FreeBSD: releng/7.3/sys/i386/ibcs2/ibcs2_util.h 160241 2006-07-10 17:59:26Z jhb $
   33  */
   34 
   35 /*
   36  * This file is pretty much the same as Christos' svr4_util.h
   37  * (for now).
   38  */
   39 
   40 #ifndef _IBCS2_UTIL_H_
   41 #define _IBCS2_UTIL_H_
   42 
   43 #include <sys/proc.h>
   44 #include <sys/uio.h>
   45 
   46 #ifdef DEBUG_IBCS2
   47 #define DPRINTF(a)      printf a;
   48 #else
   49 #define DPRINTF(a)
   50 #endif
   51 
   52 extern const char ibcs2_emul_path[];
   53 
   54 int     ibcs2_emul_find(struct thread *, char *, enum uio_seg, char **, int);
   55 
   56 #define CHECKALT(td, upath, pathp, i)                                   \
   57         do {                                                            \
   58                 int _error;                                             \
   59                                                                         \
   60                 _error = ibcs2_emul_find(td, upath, UIO_USERSPACE, pathp, i); \
   61                 if (*(pathp) == NULL)                                   \
   62                         return (_error);                                \
   63         } while (0)
   64 
   65 #define CHECKALTEXIST(td, upath, pathp) CHECKALT(td, upath, pathp, 0)
   66 #define CHECKALTCREAT(td, upath, pathp) CHECKALT(td, upath, pathp, 1)
   67 
   68 #ifdef SPX_HACK
   69 int     spx_open(struct thread *td);
   70 #endif
   71 
   72 #endif /* !_IBCS2_UTIL_H_ */

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