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/arm/include/stdarg.h

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    1 /*-
    2  * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
    3  * Copyright (c) 1991, 1993
    4  *      The Regents of the University of California.  All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 4. Neither the name of the University nor the names of its contributors
   15  *    may be used to endorse or promote products derived from this software
   16  *    without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  *      @(#)stdarg.h    8.1 (Berkeley) 6/10/93
   31  * $FreeBSD: releng/10.0/sys/arm/include/stdarg.h 162487 2006-09-21 01:37:02Z kan $
   32  */
   33 
   34 #ifndef _MACHINE_STDARG_H_
   35 #define _MACHINE_STDARG_H_
   36 
   37 #include <sys/cdefs.h>
   38 #include <sys/_types.h>
   39 
   40 #ifndef _VA_LIST_DECLARED
   41 #define _VA_LIST_DECLARED
   42 typedef __va_list       va_list;
   43 #endif
   44 
   45 #ifdef __GNUCLIKE_BUILTIN_STDARG
   46 
   47 #define va_start(ap, last) \
   48         __builtin_va_start((ap), (last))
   49 
   50 #define va_arg(ap, type) \
   51         __builtin_va_arg((ap), type)
   52 
   53 #if __ISO_C_VISIBLE >= 1999
   54 #define va_copy(dest, src) \
   55         __builtin_va_copy((dest), (src))
   56 #endif
   57 
   58 #define va_end(ap) \
   59         __builtin_va_end(ap)
   60 
   61 #else   /* !__GNUCLIKE_BUILTIN_STDARG */
   62 
   63 #define __va_size(type) \
   64         (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
   65 
   66 #ifdef __GNUCLIKE_BUILTIN_NEXT_ARG
   67 #define va_start(ap, last) \
   68         ((ap) = (va_list)__builtin_next_arg(last))
   69 #else   /* !__GNUCLIKE_BUILTIN_NEXT_ARG */
   70 #define va_start(ap, last) \
   71         ((ap) = (va_list)&(last) + __va_size(last))
   72 #endif  /* __GNUCLIKE_BUILTIN_NEXT_ARG */
   73 
   74 #define va_arg(ap, type) \
   75         (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
   76 
   77 #define va_end(ap)
   78 
   79 #endif /* __GNUCLIKE_BUILTIN_STDARG */
   80 
   81 #endif /* !_MACHINE_STDARG_H_ */

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