1  /* Definitions for POSIX memory map interface.  Linux/SPARC 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  /* The following definitions basically come from the kernel headers.
      24     But the kernel header is not namespace clean.  */
      25  
      26  
      27  /* These are Linux-specific.  */
      28  #define MAP_GROWSDOWN	0x0200		/* Stack-like segment.  */
      29  #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
      30  #define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
      31  #define MAP_LOCKED	0x0100		/* Lock the mapping.  */
      32  #define MAP_NORESERVE	0x0040		/* Don't check for reservations.  */
      33  #define _MAP_NEW	0x80000000	/* Binary compatibility with SunOS.  */
      34  #define MAP_POPULATE	0x8000		/* Populate (prefault) pagetables.  */
      35  #define MAP_NONBLOCK	0x10000		/* Do not block on IO.  */
      36  #define MAP_STACK	0x20000		/* Allocation is for a stack.  */
      37  #define MAP_HUGETLB	0x40000		/* Create huge page mapping.  */
      38  #define MAP_SYNC	0x80000		/* Perform synchronous page
      39  					   faults for the mapping.  */
      40  #define MAP_FIXED_NOREPLACE 0x100000	/* MAP_FIXED but do not unmap
      41  					   underlying mapping.  */
      42  
      43  /* Flags for `mlockall'.  */
      44  #define MCL_CURRENT	0x2000		/* Lock all currently mapped pages.  */
      45  #define MCL_FUTURE	0x4000		/* Lock all additions to address
      46  					   space.  */
      47  #define MCL_ONFAULT	0x8000		/* Lock all pages that are
      48  					   faulted in.  */
      49  /* Include generic Linux declarations.  */
      50  #include <bits/mman-linux.h>
      51  
      52  /* Other flags.  */
      53  #define MAP_RENAME	MAP_ANONYMOUS