libc/sysdeps/linux/common/bits/mman-common.h

   1 /* Definitions for POSIX memory map interface.  Linux/generic version.
   2    Copyright (C) 1997-2018 Free Software Foundation, Inc.
   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    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _SYS_MMAN_H
  19 # error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
  20 #endif
  21
  22 /* The following definitions basically come from the kernel headers.
  23    But the kernel header is not namespace clean.  */
  24
  25 /* These are Linux-specific.  */
  26 #ifdef __USE_MISC
  27 # define MAP_GROWSDOWN  0x00100         /* Stack-like segment.  */
  28 # define MAP_DENYWRITE  0x00800         /* ETXTBSY */
  29 # define MAP_EXECUTABLE 0x01000         /* Mark it as an executable.  */
  30 # define MAP_LOCKED     0x02000         /* Lock the mapping.  */
  31 # define MAP_NORESERVE  0x04000         /* Don't check for reservations.  */
  32 # define MAP_POPULATE   0x08000         /* Populate (prefault) pagetables.  */
  33 # define MAP_NONBLOCK   0x10000         /* Do not block on IO.  */
  34 # define MAP_STACK      0x20000         /* Allocation is for a stack.  */
  35 # define MAP_HUGETLB    0x40000         /* Create huge page mapping.  */
  36 # define MAP_UNINITIALIZED 0x4000000    /* For anonymous mmap, memory could -                                              be uninitialized. */
  37 #endif
  38
  39 #include <bits/mman-linux.h>