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446d22e9 | 1 | /* mprotect with a memory protection key. |
6d7e8eda | 2 | Copyright (C) 2017-2023 Free Software Foundation, Inc. |
446d22e9 FW |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
446d22e9 FW |
18 | |
19 | #include <errno.h> | |
20 | #include <sys/mman.h> | |
21 | #include <sys/syscall.h> | |
22 | #include <sysdep.h> | |
23 | ||
24 | int | |
25 | pkey_mprotect (void *addr, size_t len, int prot, int pkey) | |
26 | { | |
27 | if (pkey == -1) | |
28 | /* If the key is -1, the system call is precisely equivalent to | |
29 | mprotect. */ | |
30 | return __mprotect (addr, len, prot); | |
446d22e9 | 31 | return INLINE_SYSCALL_CALL (pkey_mprotect, addr, len, prot, pkey); |
446d22e9 | 32 | } |