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568035b7 | 1 | /* Copyright (C) 2000-2013 Free Software Foundation, Inc. |
bb0607a2 AS |
2 | This file is part of the GNU C Library. |
3 | Contributed by Andreas Schwab <schwab@suse.de>. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
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. | |
bb0607a2 AS |
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 | |
3214b89b | 13 | Lesser General Public License for more details. |
bb0607a2 | 14 | |
3214b89b | 15 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
bb0607a2 AS |
18 | |
19 | #include <unistd.h> | |
20 | #include <sys/param.h> | |
21 | #include <errno.h> | |
22 | ||
f71d7f57 | 23 | #include <ldsodefs.h> |
bb0607a2 AS |
24 | #include <sysdep.h> |
25 | #include <sys/syscall.h> | |
26 | ||
27 | /* Return the system page size. */ | |
28 | int | |
29 | __getpagesize () | |
30 | { | |
31 | #ifdef __NR_getpagesize | |
32 | int result; | |
f476000f AS |
33 | #endif |
34 | ||
a7c187d6 UD |
35 | if (GLRO(dl_pagesize) != 0) |
36 | return GLRO(dl_pagesize); | |
bb0607a2 | 37 | |
44dce391 | 38 | #ifdef __NR_getpagesize |
51c050b0 UD |
39 | INTERNAL_SYSCALL_DECL (err); |
40 | result = INTERNAL_SYSCALL (getpagesize, err, 0); | |
bb0607a2 | 41 | /* The only possible error is ENOSYS. */ |
51c050b0 | 42 | if (!INTERNAL_SYSCALL_ERROR_P (result, err)) |
bb0607a2 AS |
43 | return result; |
44 | #endif | |
45 | ||
f476000f | 46 | return 4096; |
bb0607a2 | 47 | } |
da5f5f79 | 48 | libc_hidden_def (__getpagesize) |
bb0607a2 | 49 | weak_alias (__getpagesize, getpagesize) |