1 /* mprotect with error checking.
2 Copyright (C) 2017-2022 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 <support/check.h>
20 #include <support/xunistd.h>
21 #include <sys/mman.h>
22
23 void
xmprotect(void * addr,size_t length,int prot)24 xmprotect (void *addr, size_t length, int prot)
25 {
26 if (mprotect (addr, length, prot) != 0)
27 FAIL_EXIT1 ("mprotect (%p, %zu, 0x%x): %m", addr, length, prot);
28 }
29