1 | /* Copyright (C) 1994-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <sys/types.h> |
19 | #include <sys/mman.h> |
20 | #include <errno.h> |
21 | |
22 | /* Change the memory protection of the region starting at ADDR and |
23 | extending LEN bytes to PROT. Returns 0 if successful, -1 for errors |
24 | (and sets errno). */ |
25 | |
26 | int |
27 | __mprotect (void *addr, size_t len, int prot) |
28 | { |
29 | __set_errno (ENOSYS); |
30 | return -1; |
31 | } |
32 | weak_alias (__mprotect, mprotect) |
33 | |
34 | stub_warning (mprotect) |
35 | |