forked from ariadne/libucontext
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* Heavily stripped down version of glibc include/libc-symbols.h */
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/* Support macros for making weak and strong aliases for symbols,
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and for using symbol sets and linker warnings with GNU ld.
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Copyright (C) 1995-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef __INCLUDE_SYMBOLS_H
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#define __INCLUDE_SYMBOLS_H
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#ifndef C_SYMBOL_NAME
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# define C_SYMBOL_NAME(name) name
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#endif
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#ifndef __ASSEMBLER__
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/* Define ALIASNAME as a weak alias for NAME.
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If weak aliases are not available, this defines a strong alias. */
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# define weak_alias(name, aliasname) _weak_alias (name, aliasname)
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# define _weak_alias(name, aliasname) \
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extern __typeof (name) aliasname __attribute__ ((weak, alias (#name)));
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#else
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# define weak_alias(original, alias) \
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.weak C_SYMBOL_NAME (alias) ; \
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C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
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#endif
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#endif
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