misc/mlockall.c

   1 /* mlockall -- lock in core all the pages in this process.  Stub version.
   2    Copyright (C) 2001-2020 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sys/types.h>
  20 #include <sys/mman.h>
  21 #include <errno.h>
  22
  23 /* Cause all currently mapped pages of the process to be memory resident
  24    until unlocked by a call to the `munlockall', until the process exits,
  25    or until the process calls `execve'.  */
  26
  27 int
  28 mlockall (int flags)
  29 {
  30   __set_errno (ENOSYS);
  31   return -1;
  32 }
  33
  34 stub_warning (mlockall)