1849df3006
Both .weak and .alias assembler directives only work when assembling the file which defines the symbol. Reported and tested by: andrew Sponsored by: The FreeBSD Foundation MFC after: 1 week
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/*-
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* Copyright (c) 2009 Advanced Computing Technologies LLC
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* Written by: John H. Baldwin <jhb@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* This file defines compatiblity symbol versions for old system calls. It
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* is included in all generated system call files.
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*/
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#ifndef __LIBC_COMPAT_H__
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#define __LIBC_COMPAT_H__
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#define __sym_compat(sym,impl,verid) \
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.symver impl, sym@verid
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__sym_compat(__semctl, freebsd7___semctl, FBSD_1.0);
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__sym_compat(msgctl, freebsd7_msgctl, FBSD_1.0);
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__sym_compat(shmctl, freebsd7_shmctl, FBSD_1.0);
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#undef __sym_compat
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#define __weak_reference(sym,alias) \
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.weak alias;.equ alias,sym
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#ifndef SYSCALL_COMPAT
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__weak_reference(__sys_fcntl,__fcntl_compat)
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#endif
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#undef __weak_reference
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#endif /* __LIBC_COMPAT_H__ */
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