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329ea513 ZW |
1 | /* ABI compatibility for 'fcntl' symbol in libpthread ABI. |
2 | Copyright (C) 2018 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 | <http://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 | ||
32 | static int | |
33 | fcntl_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); | |
06ab719d | 40 | return __libc_fcntl64 (fd, cmd, arg); |
329ea513 ZW |
41 | } |
42 | ||
43 | weak_alias (fcntl_compat, fcntl_alias) | |
44 | compat_symbol (libpthread, fcntl_alias, fcntl, GLIBC_2_0); | |
45 | ||
46 | weak_alias (fcntl_compat, __fcntl_alias) | |
47 | compat_symbol (libpthread, __fcntl_alias, __fcntl, GLIBC_2_0); | |
48 | ||
49 | #endif |