124 lines
4.3 KiB
C
124 lines
4.3 KiB
C
/* 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
|
|
|
|
#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 */
|