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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 |