| 1 | /* Get file-specific information about a file. Linux version. |
| 2 | Copyright (C) 2003-2020 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 <assert.h> |
| 20 | #include <stdbool.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <unistd.h> |
| 23 | |
| 24 | |
| 25 | static long int linux_sysconf (int name); |
| 26 | extern long int __cache_sysconf (int) attribute_hidden; |
| 27 | |
| 28 | |
| 29 | /* Get the value of the system variable NAME. */ |
| 30 | long int |
| 31 | __sysconf (int name) |
| 32 | { |
| 33 | if (name >= _SC_LEVEL1_ICACHE_SIZE && name <= _SC_LEVEL4_CACHE_LINESIZE) |
| 34 | return __cache_sysconf (name); |
| 35 | |
| 36 | return linux_sysconf (name); |
| 37 | } |
| 38 | |
| 39 | /* Now the generic Linux version. */ |
| 40 | #undef __sysconf |
| 41 | #define __sysconf static linux_sysconf |
| 42 | #include "../sysconf.c" |
| 43 | |