/* Copyright (C) 1994-2018 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 <sys/types.h>

#include <sys/mman.h>

#include <errno.h>

#include <mach.h>

/* Deallocate any mapping for the region starting at ADDR and extending LEN

   bytes.  Returns 0 if successful, -1 for errors (and sets errno).  */

int

__munmap (void *addr, size_t len)

{

  kern_return_t err;

  if (addr == 0)

    {

      errno = EINVAL;

      return -1;

    }

  if (err = __vm_deallocate (__mach_task_self (),

			     (vm_address_t) addr, (vm_size_t) len))

    {

      errno = err;

      return -1;

    }

  return 0;

}

libc_hidden_def (__munmap)

weak_alias (__munmap, munmap)