xref: /freebsd/lib/libc/include/compat.h (revision fbbd9655e5107c68e4e0146ff22b73d7350475bc)
1 /*-
2  * Copyright (c) 2009 Hudson River Trading LLC
3  * Written by: John H. Baldwin <jhb@FreeBSD.org>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 /*
31  * This file defines compatibility symbol versions for old system calls.  It
32  * is included in all generated system call files.
33  */
34 
35 #ifndef __LIBC_COMPAT_H__
36 #define	__LIBC_COMPAT_H__
37 
38 #define	__sym_compat(sym,impl,verid)	\
39 	.symver impl, sym@verid
40 
41 #ifndef NO_COMPAT7
42 __sym_compat(__semctl, freebsd7___semctl, FBSD_1.0);
43 __sym_compat(msgctl, freebsd7_msgctl, FBSD_1.0);
44 __sym_compat(shmctl, freebsd7_shmctl, FBSD_1.0);
45 #endif
46 
47 #undef __sym_compat
48 
49 #define	__weak_reference(sym,alias)	\
50 	.weak	alias;.equ	alias,sym
51 
52 __weak_reference(__sys_fcntl,__fcntl_compat)
53 
54 #undef __weak_reference
55 
56 #endif	/* __LIBC_COMPAT_H__ */
57 
58