diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/errlist-compat.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/errlist-compat.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/errlist-compat.h b/sysdeps/unix/sysv/linux/errlist-compat.h new file mode 100644 index 0000000000..edd35fd4ed --- /dev/null +++ b/sysdeps/unix/sysv/linux/errlist-compat.h @@ -0,0 +1,43 @@ +/* Linux sys_errlist compatibility macro definitions. + Copyright (C) 2020 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> + +/* 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. */ +#define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \ + const int __##VERSION##_sys_nerr = NUMBERERR; \ + strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr); \ + declare_symbol_alias (__ ## VERSION ## _sys_errlist, _sys_errlist_internal,\ + object, NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)); \ + declare_symbol_alias (__ ## VERSION ## __sys_errlist, \ + _sys_errlist_internal, object, \ + NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)); \ + compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION); \ + compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION); \ + compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION); \ + compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION);\ + +#endif |