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/* Linux sys_errlist compatibility macro definitions.
Copyright (C) 2020-2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _ERRLIST_COMPAT_H
#define _ERRLIST_COMPAT_H
#include <shlib-compat.h>
#include <limits.h>
/* Define new compat symbols for symbols _sys_errlist, sys_errlist,
_sys_nerr, and sys_nerr for version VERSION with NUMBERERR times number of
bytes per long int size.
Both _sys_errlist and sys_errlist alias to _sys_errlist_internal symbol
(defined on errlist.c) while _sys_nerr and sys_nerr created new variable
with the expected size. */
#ifdef __ASSEMBLER__
# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \
declare_object_symbol_alias (__ ## VERSION ## _sys_errlist, \
_sys_errlist_internal, \
NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)) \
ASM_LINE_SEP \
declare_object_symbol_alias (__ ## VERSION ## __sys_errlist, \
_sys_errlist_internal, \
NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)) \
ASM_LINE_SEP \
compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION) \
ASM_LINE_SEP \
compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION)
#else
# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \
const int __##VERSION##_sys_nerr = NUMBERERR; \
strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr); \
compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION); \
compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION);
#endif
#endif
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