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/*!\file sys/cdefs.h
*
* C-compiler definitions.
*/
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Berkeley Software Design, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)cdefs.h 8.7 (Berkeley) 1/21/94
*/
#ifndef __SYS_CDEFS_H
#define __SYS_CDEFS_H
#if defined(__DJGPP__) && !defined(djgpp_cdefs_incl)
#include "/dev/env/DJDIR/include/sys/cdefs.h"
#define djgpp_cdefs_incl
#endif
#ifdef __cplusplus
#define __BEGIN_DECLS extern "C" {
#define __END_DECLS }
#else
#define __BEGIN_DECLS
#define __END_DECLS
#endif
#ifndef W32_NAMESPACE
#define W32_NAMESPACE(x) _w32_ ## x
#endif
#if defined(__CCDL__)
#define cdecl _cdecl
#elif defined(__MINGW32__) && !defined(cdecl)
#define cdecl __attribute__((__cdecl__))
#elif defined(_MSC_VER) || defined(__POCC__)
#undef cdecl
#if (_MSC_VER <= 600)
#define cdecl _cdecl
#undef __STDC__
#define __STDC__ 1
#else
#define cdecl __cdecl
#endif
#define NO_ANSI_KEYWORDS
#elif defined(__DMC__)
#define NO_UNDERSCORE __syscall
/* e.g. int NO_UNDERSCORE foo (void); */
#endif
#ifndef cdecl
#define cdecl
#endif
#if defined(_MSC_VER) && !defined(WIN32) && !defined(_WIN32)
/*
* MS's Quick-C/Visual-C (for DOS) insists that signal-handlers, atexit
* functions and var-arg functions must be defined cdecl.
* This is only an issue if a program is using 'fastcall' globally
* (cl option /Gr).
* On Win32 this isn't an issue since WATT-32.DLL cannot be built
* as 'fastcall' anyway.
*/
#undef MS_CDECL
#define MS_CDECL cdecl
#else
#define MS_CDECL
#endif
struct mbuf {
struct mbuf *next; /* Links mbufs belonging to single packets */
struct mbuf *anext; /* Links packets on queues */
unsigned size; /* Size of associated data buffer */
int refcnt; /* Reference count */
struct mbuf *dup; /* Pointer to duplicated mbuf */
char *data; /* Active working pointers */
unsigned cnt;
};
/*
* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
* in between its arguments. __CONCAT can also concatenate double-quoted
* strings produced by the __STRING macro, but this only works with ANSI C.
*/
#if (defined(__STDC__) && __STDC__) || defined(__cplusplus) || defined(__TURBOC__)
#undef __P
#define __P(protos) protos /* full-blown ANSI C */
#define __CONCAT(x,y) x ## y
#define __STRING(x) #x
#define __const const /* define reserved names to standard */
#define __signed signed
#define __volatile volatile
#if defined(__cplusplus)
#define __inline inline /* convert to C++ keyword */
#elif !defined(__GNUC__) && !defined(_MSC_VER) && !defined(__WATCOMC__)
#define __inline /* delete GCC/MSC/Watcom keyword */
#endif
#else
#define __P(protos) () /* traditional C preprocessor */
#define __CONCAT(x,y) x/**/y
#define __STRING(x) "x"
#if !defined(__GNUC__) && !defined(_MSC_VER) && !defined(__WATCOMC__)
#define __inline
#endif
#if !defined(__GNUC__)
#define __const /* delete pseudo-ANSI C keywords */
#define __signed
#define __volatile
/*
* In non-ANSI C environments, new programs will want ANSI-only C keywords
* deleted from the program and old programs will want them left alone.
* When using a compiler other than gcc, programs using the ANSI C keywords
* const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
* When using "gcc -traditional", we assume that this is the intent; if
* __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
*/
#if !defined(NO_ANSI_KEYWORDS)
#define const /* delete ANSI C keywords */
#define inline
#define signed
#define volatile
#endif
#endif /* !__GNUC__ */
#endif /* !C++ */
/*
* GCC1 and some versions of GCC2 declare dead (non-returning) and
* pure (no side effects) functions using "volatile" and "const";
* unfortunately, these then cause warnings under "-ansi -pedantic".
* GCC2 uses a new, peculiar __attribute__((attrs)) style. All of
* these work for GNU C++ (modulo a slight glitch in the C++ grammar
* in the distribution version of 2.5.5).
*/
#if !defined(__GNUC__) || (__GNUC__ < 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ < 5))
#undef __attribute__
#define __attribute__(x) /* delete __attribute__ if non-gcc or older than gcc 2.5 */
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#undef __dead
#undef __pure
#define __dead __volatile
#define __pure __const
#undef __dead2
#define __dead2
#endif
#endif
/*
* Delete pseudo-keywords wherever they are not available or needed.
* This seems to break MingW in mysterious ways, so leave it,
*/
#ifndef __dead
#define __dead
#endif
#ifndef __dead2
#define __dead2
#endif
#ifndef __pure
#define __pure
#endif
/*
* min() & max() macros
*/
#if defined(__HIGHC__)
#undef min
#undef max
#define min(a,b) _min(a,b) /* intrinsic functions */
#define max(a,b) _max(a,b)
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
/*
* from NetBSD's <sys/cdefs_aout.h>
*
* Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.
* Public domain.
*/
/* #define _C_LABEL(x) __CONCAT(_,x) */
#if defined(__GNUC__)
#define __indr_reference(sym,alias) \
__asm__(".stabs \"_" #alias "\",11,0,0,0");\
__asm__(".stabs \"_" #sym "\",1,0,0,0");
#define __warn_references(sym,msg) \
__asm__(".stabs \"" msg "\",30,0,0,0"); \
__asm__(".stabs \"_" #sym "\",1,0,0,0");
#define __IDSTRING(name,string) \
static const char name[] __attribute__((__unused__)) = string
#else
#define __indr_reference(sym,alias)
#define __warn_references(sym,msg)
#define __IDSTRING(name,string) static const char name[] = string
#endif
#define __RCSID(_s) __IDSTRING(rcsid,_s)
#define __COPYRIGHT(_s) __IDSTRING(copyright,_s)
#define __KERNEL_RCSID(_n,_s) __IDSTRING(__CONCAT(rcsid,_n),_s)
#define __KERNEL_COPYRIGHT(_n,_s) __IDSTRING(__CONCAT(copyright,_n),_s)
#endif