glibc/sysdeps/nacl/mprotect.c
2015-04-17 09:02:19 -07:00

34 lines
1.2 KiB
C

/* Change memory protections on pages. NaCl version.
Copyright (C) 2015 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 <sys/types.h>
#include <sys/mman.h>
#include <nacl-interfaces.h>
/* Change the memory protection of the region starting at ADDR and
extending LEN bytes to PROT. Returns 0 if successful, -1 for errors
(and sets errno). */
int
__mprotect (__ptr_t addr, size_t len, int prot)
{
return NACL_CALL (__nacl_irt_memory.mprotect (addr, len, prot), 0);
}
weak_alias (__mprotect, mprotect)