1 /* libc/sys/linux/sys/cdefs.h - Helper macros for K&R vs. ANSI C compat. */
3 /* Written 2000 by Werner Almesberger */
6 * Copyright (c) 1991, 1993
7 * The Regents of the University of California. All rights reserved.
9 * This code is derived from software contributed to Berkeley by
10 * Berkeley Software Design, Inc.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
41 * $FreeBSD: src/sys/sys/cdefs.h,v 1.54 2002/05/11 03:58:24 alfred Exp $
47 #define __FBSDID(x) /* nothing */
49 * Note: the goal here is not compatibility to K&R C. Since we know that we
50 * have GCC which understands ANSI C perfectly well, we make use of this.
53 #define __P(args) args
54 #define __PMT(args) args
56 #define __signed signed
57 #define __volatile volatile
61 #define __ptr_t void *
62 #define __long_double_t long double
64 #define __attribute_malloc__
65 #define __attribute_pure__
66 #define __attribute_format_strfmon__(a,b)
70 # define __BEGIN_DECLS extern "C" {
71 # define __END_DECLS }
73 # define __BEGIN_DECLS
77 #ifndef __BOUNDED_POINTERS__
78 # define __bounded /* nothing */
79 # define __unbounded /* nothing */
80 # define __ptrvalue /* nothing */
84 #define __strong_reference(sym,aliassym) \
85 extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
88 #define __weak_reference(sym,alias) \
89 __asm__(".weak " #alias); \
90 __asm__(".equ " #alias ", " #sym)
91 #define __warn_references(sym,msg) \
92 __asm__(".section .gnu.warning." #sym); \
93 __asm__(".asciz \"" msg "\""); \
96 #define __weak_reference(sym,alias) \
97 __asm__(".weak alias"); \
98 __asm__(".equ alias, sym")
99 #define __warn_references(sym,msg) \
100 __asm__(".section .gnu.warning.sym"); \
101 __asm__(".asciz \"msg\""); \
103 #endif /* __STDC__ */
106 #define __weak_reference(sym,alias) \
107 __asm__(".stabs \"_" #alias "\",11,0,0,0"); \
108 __asm__(".stabs \"_" #sym "\",1,0,0,0")
109 #define __warn_references(sym,msg) \
110 __asm__(".stabs \"" msg "\",30,0,0,0"); \
111 __asm__(".stabs \"_" #sym "\",1,0,0,0")
113 #define __weak_reference(sym,alias) \
114 __asm__(".stabs \"_/**/alias\",11,0,0,0"); \
115 __asm__(".stabs \"_/**/sym\",1,0,0,0")
116 #define __warn_references(sym,msg) \
117 __asm__(".stabs msg,30,0,0,0"); \
118 __asm__(".stabs \"_/**/sym\",1,0,0,0")
119 #endif /* __STDC__ */
121 #endif /* __GNUC__ */
123 #endif /* _SYS_CDEFS_H */