1  /* Copyright (C) 1994-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <sys/types.h>
      19  #include <sys/mman.h>
      20  #include <errno.h>
      21  
      22  /* Map addresses starting near ADDR and extending for LEN bytes.  From
      23     OFFSET into the file FD describes according to PROT and FLAGS.  If ADDR
      24     is nonzero, it is the desired mapping address.  If the MAP_FIXED bit is
      25     set in FLAGS, the mapping will be at ADDR exactly (which must be
      26     page-aligned); otherwise the system chooses a convenient nearby address.
      27     The return value is the actual mapping address chosen or MAP_FAILED
      28     for errors (in which case `errno' is set).  A successful `mmap' call
      29     deallocates any previous mapping for the affected region.  */
      30  
      31  void *
      32  __mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset)
      33  {
      34    __set_errno (ENOSYS);
      35    return MAP_FAILED;
      36  }
      37  
      38  stub_warning (mmap)
      39  weak_alias (__mmap, mmap)
      40  libc_hidden_def (__mmap)