sysdeps/nacl/munmap.c

   1 /* Deallocate a region of pages.  NaCl version.
   2    Copyright (C) 2015-2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sys/mman.h>
  20 #include <nacl-interfaces.h>
  21
  22
  23 /* Deallocate any mapping for the region starting at ADDR and extending LEN
  24    bytes.  Returns 0 if successful, -1 for errors (and sets errno).  */
  25
  26 int
  27 __munmap (__ptr_t addr, size_t len)
  28 {
  29   return NACL_CALL (__nacl_irt_memory.munmap (addr, len), 0);
  30 }
  31
  32 weak_alias (__munmap, munmap)