1/* ABI compatibility for 'fcntl' symbol in libpthread ABI.
2 Copyright (C) 2018-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <fcntl.h>
20#include <stdarg.h>
21#include <shlib-compat.h>
22
23/* libpthread once had its own fcntl, though there was no apparent reason
24 for it. There is no use in having a separate symbol in libpthread, but
25 the historical ABI requires it. For static linking, there is no need to
26 provide anything here--the libc version will be linked in. For shared
27 library ABI compatibility, there must be __fcntl and fcntl symbols in
28 libpthread.so. */
29
30#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_28)
31
32static int
33fcntl_compat (int fd, int cmd, ...)
34{
35 void *arg;
36 va_list ap;
37 va_start (ap, cmd);
38 arg = va_arg (ap, void *);
39 va_end (ap);
40 return __libc_fcntl64 (fd, cmd, arg);
41}
42
43weak_alias (fcntl_compat, fcntl_alias)
44compat_symbol (libpthread, fcntl_alias, fcntl, GLIBC_2_0);
45
46weak_alias (fcntl_compat, __fcntl_alias)
47compat_symbol (libpthread, __fcntl_alias, __fcntl, GLIBC_2_0);
48
49#endif
50