1  /* Definitions for POSIX memory map interface.  Linux/HPPA version.
       2     Copyright (C) 1997-2023 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.h> directly; include <sys/mman.h> instead."
      21  #endif
      22  
      23  /* These are taken from the kernel definitions.  */
      24  
      25  /* Other flags.  */
      26  #define __MAP_ANONYMOUS	0x10		/* Don't use a file */
      27  
      28  /* These are Linux-specific.  */
      29  #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
      30  #define MAP_EXECUTABLE	0x1000		/* Mark it as an executable */
      31  #define MAP_LOCKED	0x2000		/* Pages are locked */
      32  #define MAP_NORESERVE	0x4000		/* Don't check for reservations */
      33  #define MAP_GROWSDOWN	0x8000		/* Stack-like segment */
      34  #define MAP_POPULATE	0x10000		/* Populate (prefault) pagetables */
      35  #define MAP_NONBLOCK	0x20000		/* Do not block on IO */
      36  #define MAP_STACK	0x40000		/* Create for process/thread stacks */
      37  #define MAP_HUGETLB	0x80000		/* Create a huge page mapping */
      38  #define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED but do not unmap
      39  					   underlying mapping.  */
      40  
      41  #include <bits/mman-linux.h>
      42  
      43  #undef MAP_TYPE
      44  #define MAP_TYPE	0x2b		/* Mask for type of mapping */
      45  
      46  #undef MAP_FIXED
      47  #define MAP_FIXED	0x04		/* Interpret addr exactly */
      48  
      49  /* Flags to "msync"  */
      50  #undef MS_SYNC
      51  #define MS_SYNC		1		/* Synchronous memory sync */
      52  #undef MS_ASYNC
      53  #define MS_ASYNC	2		/* Sync memory asynchronously */
      54  #undef MS_INVALIDATE
      55  #define MS_INVALIDATE	4		/* Invalidate the caches */