1/* Definitions for POSIX memory map interface.  Linux/generic version.
 2   Copyright (C) 1997-2025 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#ifndef _SYS_MMAN_H
20# error "Never use <bits/mman-map-flags-generic.h> directly; include <sys/mman.h> instead."
21#endif
22
23/* These definitions are appropriate for architectures that, in the
24   Linux kernel, either have no uapi/asm/mman.h, or have one that
25   includes asm-generic/mman.h without any changes to the values of
26   the MAP_* flags defined in that header.  */
27
28#define MAP_GROWSDOWN	0x00100		/* Stack-like segment.  */
29#define MAP_DENYWRITE	0x00800		/* ETXTBSY.  */
30#define MAP_EXECUTABLE	0x01000		/* Mark it as an executable.  */
31#define MAP_LOCKED	0x02000		/* Lock the mapping.  */
32#define MAP_NORESERVE	0x04000		/* Don't check for reservations.  */
33#define MAP_POPULATE	0x08000		/* Populate (prefault) pagetables.  */
34#define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
35#define MAP_STACK	0x20000		/* Allocation is for a stack.  */
36#define MAP_HUGETLB	0x40000		/* Create huge page mapping.  */
37#define MAP_SYNC	0x80000		/* Perform synchronous page
38					   faults for the mapping.  */
39#define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED but do not unmap
40					   underlying mapping.  */