1 /* Definitions for POSIX memory map interface. Linux/x86 version. 2 Copyright (C) 2001-2018 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 /* Other flags. */ 26 #ifdef __USE_MISC 27 # define MAP_32BIT 0x40 /* Only give out 32-bit addresses. */ 28 #endif 29 30 /* These are Linux-specific. */ 31 #ifdef __USE_MISC 32 # define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */ 33 # define MAP_DENYWRITE 0x00800 /* ETXTBSY */ 34 # define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */ 35 # define MAP_LOCKED 0x02000 /* Lock the mapping. */ 36 # define MAP_NORESERVE 0x04000 /* Don't check for reservations. */ 37 # define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */ 38 # define MAP_NONBLOCK 0x10000 /* Do not block on IO. */ 39 # define MAP_STACK 0x20000 /* Allocation is for a stack. */ 40 # define MAP_HUGETLB 0x40000 /* Create huge page mapping. */ 41 #endif 42 43 /* Include generic Linux declarations. */ 44 #include <bits/mman-linux.h> 45