/* Definitions for POSIX memory map interface. Linux/generic version. Copyright (C) 1997-2021 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. */ #ifdef __USE_MISC # 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. */ #endif