| 0,0 → 1,144 |
|---|
| /* libc/sys/linux/sys/cdefs.h - Helper macros for K&R vs. ANSI C compat. */ |
| |
| /* Written 2000 by Werner Almesberger */ |
| |
| /* |
| * 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 8.8 (Berkeley) 1/9/95 |
| * $FreeBSD: src/sys/sys/cdefs.h,v 1.54 2002/05/11 03:58:24 alfred Exp $ |
| */ |
| |
| #ifndef _SYS_CDEFS_H |
| #define _SYS_CDEFS_H |
| |
| #define __FBSDID(x) /* nothing */ |
| /* |
| * Note: the goal here is not compatibility to K&R C. Since we know that we |
| * have GCC which understands ANSI C perfectly well, we make use of this. |
| */ |
| |
| #define __P(args) args |
| #define __PMT(args) args |
| #define __const const |
| #define __signed signed |
| #define __volatile volatile |
| #define __DOTS , ... |
| #define __THROW |
| |
| /* |
| * 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 to use if it must work in non-ANSI |
| * mode -- there must be no spaces between its arguments, and for nested |
| * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also |
| * concatenate double-quoted strings produced by the __STRING macro, but |
| * this only works with ANSI C. |
| * |
| * __XSTRING is like __STRING, but it expands any macros in its argument |
| * first. It is only available with ANSI C. |
| */ |
| #define __CONCAT1(x,y) x ## y |
| #define __CONCAT(x,y) __CONCAT1(x,y) |
| #define __STRING(x) #x /* stringify without expanding x */ |
| #define __XSTRING(x) __STRING(x) /* expand x, then stringify */ |
| |
| #ifdef __GNUC__ |
| # define __ASMNAME(cname) __XSTRING (__USER_LABEL_PREFIX__) cname |
| #endif |
| |
| #define __ptr_t void * |
| #define __long_double_t long double |
| |
| #define __attribute_malloc__ |
| #define __attribute_pure__ |
| #define __attribute_format_strfmon__(a,b) |
| #define __flexarr [0] |
| |
| #ifdef __cplusplus |
| # define __BEGIN_DECLS extern "C" { |
| # define __END_DECLS } |
| #else |
| # define __BEGIN_DECLS |
| # define __END_DECLS |
| #endif |
| |
| #ifndef __BOUNDED_POINTERS__ |
| # define __bounded /* nothing */ |
| # define __unbounded /* nothing */ |
| # define __ptrvalue /* nothing */ |
| #endif |
| |
| #ifdef __GNUC__ |
| #define __strong_reference(sym,aliassym) \ |
| extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))); |
| #ifdef __ELF__ |
| #ifdef __STDC__ |
| #define __weak_reference(sym,alias) \ |
| __asm__(".weak " #alias); \ |
| __asm__(".equ " #alias ", " #sym) |
| #define __warn_references(sym,msg) \ |
| __asm__(".section .gnu.warning." #sym); \ |
| __asm__(".asciz \"" msg "\""); \ |
| __asm__(".previous") |
| #else |
| #define __weak_reference(sym,alias) \ |
| __asm__(".weak alias"); \ |
| __asm__(".equ alias, sym") |
| #define __warn_references(sym,msg) \ |
| __asm__(".section .gnu.warning.sym"); \ |
| __asm__(".asciz \"msg\""); \ |
| __asm__(".previous") |
| #endif /* __STDC__ */ |
| #else /* !__ELF__ */ |
| #ifdef __STDC__ |
| #define __weak_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") |
| #else |
| #define __weak_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") |
| #endif /* __STDC__ */ |
| #endif /* __ELF__ */ |
| #endif /* __GNUC__ */ |
| |
| #endif /* _SYS_CDEFS_H */ |