mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* mprotect with a memory protection key.
|
|
Copyright (C) 2017-2018 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/syscall.h>
|
|
#include <sysdep.h>
|
|
|
|
int
|
|
pkey_mprotect (void *addr, size_t len, int prot, int pkey)
|
|
{
|
|
if (pkey == -1)
|
|
/* If the key is -1, the system call is precisely equivalent to
|
|
mprotect. */
|
|
return __mprotect (addr, len, prot);
|
|
#ifdef __NR_pkey_mprotect
|
|
return INLINE_SYSCALL_CALL (pkey_mprotect, addr, len, prot, pkey);
|
|
#else
|
|
__set_errno (ENOSYS);
|
|
return -1;
|
|
#endif
|
|
}
|