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- /* Definitions for POSIX memory map interface. Linux/generic version.
- Copyright (C) 1997-2026 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library. If not, see
- <https://www.gnu.org/licenses/>. */
- #ifndef _SYS_MMAN_H
- # error "Never use <bits/mman-map-flags-generic.h> directly; include <sys/mman.h> instead."
- #endif
- /* These definitions are appropriate for architectures that, in the
- Linux kernel, either have no uapi/asm/mman.h, or have one that
- includes asm-generic/mman.h without any changes to the values of
- the MAP_* flags defined in that header. */
- #define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
- #define MAP_DENYWRITE 0x00800 /* ETXTBSY. */
- #define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
- #define MAP_LOCKED 0x02000 /* Lock the mapping. */
- #define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
- #define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
- #define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
- #define MAP_STACK 0x20000 /* Allocation is for a stack. */
- #define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
- #define MAP_SYNC 0x80000 /* Perform synchronous page
- faults for the mapping. */
- #define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED but do not unmap
- underlying mapping. */
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