xref: /freebsd-10-stable/lib/libc/include/compat.h

/*-
 * Copyright (c) 2009 Hudson River Trading LLC
 * Written by: John H. Baldwin <jhb@FreeBSD.org>
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 *
 * $FreeBSD: stable/10/lib/libc/include/compat.h 283927 2015-06-02 19:20:39Z jhb $
 */

/*
 * This file defines compatiblity symbol versions for old system calls.  It
 * is included in all generated system call files.
 */

#ifndef __LIBC_COMPAT_H__
#define	__LIBC_COMPAT_H__

#define	__sym_compat(sym,impl,verid)	\
	.symver impl, sym@verid

__sym_compat(__semctl, freebsd7___semctl, FBSD_1.0);
__sym_compat(msgctl, freebsd7_msgctl, FBSD_1.0);
__sym_compat(shmctl, freebsd7_shmctl, FBSD_1.0);

#undef __sym_compat

#define	__weak_reference(sym,alias)	\
	.weak	alias;.equ	alias,sym

#ifndef SYSCALL_COMPAT
__weak_reference(__sys_fcntl,__fcntl_compat)
#endif

#undef __weak_reference

#endif	/* __LIBC_COMPAT_H__ */