159 lines
5.6 KiB
C
159 lines
5.6 KiB
C
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Berkeley Software Design, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
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* $Id: cdefs.h,v 1.11 1996/08/18 16:14:03 peter Exp $
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*/
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#ifndef _SYS_CDEFS_H_
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#define _SYS_CDEFS_H_
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#if defined(__cplusplus)
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#define __BEGIN_DECLS extern "C" {
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#define __END_DECLS };
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#else
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#define __BEGIN_DECLS
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#define __END_DECLS
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#endif
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/*
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* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
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* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
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* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
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* in between its arguments. __CONCAT can also concatenate double-quoted
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* strings produced by the __STRING macro, but this only works with ANSI C.
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*/
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#if defined(__STDC__) || defined(__cplusplus)
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#define __P(protos) protos /* full-blown ANSI C */
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#define __CONCAT1(x,y) x ## y
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#define __CONCAT(x,y) __CONCAT1(x,y)
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#define __STRING(x) #x
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#define __const const /* define reserved names to standard */
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#define __signed signed
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#define __volatile volatile
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#if defined(__cplusplus)
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#define __inline inline /* convert to C++ keyword */
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#else
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#ifndef __GNUC__
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#define __inline /* delete GCC keyword */
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#endif /* !__GNUC__ */
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#endif /* !__cplusplus */
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#else /* !(__STDC__ || __cplusplus) */
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#define __P(protos) () /* traditional C preprocessor */
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#define __CONCAT(x,y) x/**/y
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#define __STRING(x) "x"
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#ifndef __GNUC__
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#define __const /* delete pseudo-ANSI C keywords */
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#define __inline
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#define __signed
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#define __volatile
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/*
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* In non-ANSI C environments, new programs will want ANSI-only C keywords
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* deleted from the program and old programs will want them left alone.
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* When using a compiler other than gcc, programs using the ANSI C keywords
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* const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
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* When using "gcc -traditional", we assume that this is the intent; if
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* __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
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*/
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#ifndef NO_ANSI_KEYWORDS
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#define const /* delete ANSI C keywords */
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#define inline
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#define signed
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#define volatile
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#endif /* !NO_ANSI_KEYWORDS */
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#endif /* !__GNUC__ */
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#endif /* !(__STDC__ || __cplusplus) */
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/*
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* GCC1 and some versions of GCC2 declare dead (non-returning) and
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* pure (no side effects) functions using "volatile" and "const";
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* unfortunately, these then cause warnings under "-ansi -pedantic".
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* GCC2.5 uses a new, peculiar __attribute__((attrs)) style. All of
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* these work for GNU C++ (modulo a slight glitch in the C++ grammar
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* in the distribution version of 2.5.5).
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*/
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#if __GNUC__ < 2
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#define __dead
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#define __dead2
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#define __pure
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#define __pure2
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#define __unused
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#define __attribute__(x)
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#endif
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#if __GNUC__ == 2 && __GNUC_MINOR__ < 5
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#define __dead __volatile
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#define __dead2
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#define __pure __const
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#define __pure2
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#define __unused
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#endif
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#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
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#define __dead
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#define __dead2 __attribute__((__noreturn__))
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#define __pure
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#define __pure2 __attribute__((__const__))
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#define __unused
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#endif
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#if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ >= 3
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#define __dead
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#define __dead2 __attribute__((__noreturn__))
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#define __pure
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#define __pure2 __attribute__((__const__))
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#define __unused __attribute__((__unused__))
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#endif
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#ifdef __GNUC__
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#ifdef __STDC__
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#define __weak_reference(sym,alias) \
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__asm__(".stabs \"_" #alias "\",11,0,0,0"); \
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__asm__(".stabs \"_" #sym "\",1,0,0,0")
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#define __warn_references(sym,msg) \
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__asm__(".stabs \"" msg "\",30,0,0,0"); \
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__asm__(".stabs \"_" #sym "\",1,0,0,0")
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#else
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#define __weak_reference(sym,alias) \
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__asm__(".stabs \"_/**/alias\",11,0,0,0"); \
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__asm__(".stabs \"_/**/sym\",1,0,0,0")
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#define __warn_references(sym,msg) \
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__asm__(".stabs msg,30,0,0,0"); \
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__asm__(".stabs \"_/**/sym\",1,0,0,0")
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#endif
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#endif
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#endif /* !_SYS_CDEFS_H_ */
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