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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libc/] [sysdeps/] [linux/] [m68k/] [bits/] [mman.h] - Blame information for rev 1325

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1 1325 phoenix
/* Definitions for POSIX memory map interface.  Linux/m68k version.
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   Copyright (C) 1997 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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#ifndef _SYS_MMAN_H
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# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
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#endif
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/* The following definitions basically come from the kernel headers.
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   But the kernel header is not namespace clean.  */
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/* Protections are chosen from these bits, OR'd together.  The
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   implementation does not necessarily support PROT_EXEC or PROT_WRITE
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   without PROT_READ.  The only guarantees are that no writing will be
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   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
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#define PROT_READ       0x1             /* Page can be read.  */
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#define PROT_WRITE      0x2             /* Page can be written.  */
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#define PROT_EXEC       0x4             /* Page can be executed.  */
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#define PROT_NONE       0x0             /* Page can not be accessed.  */
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/* Sharing types (must choose one and only one of these).  */
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#define MAP_SHARED      0x01            /* Share changes.  */
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#define MAP_PRIVATE     0x02            /* Changes are private.  */
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#ifdef __USE_MISC
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# define MAP_TYPE       0x0f            /* Mask for type of mapping.  */
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#endif
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/* Other flags.  */
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#define MAP_FIXED       0x10            /* Interpret addr exactly.  */
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#ifdef __USE_MISC
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# define MAP_FILE       0
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# define MAP_ANONYMOUS  0x20            /* Don't use a file.  */
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# define MAP_ANON       MAP_ANONYMOUS
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#endif
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/* These are Linux-specific.  */
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#ifdef __USE_MISC
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# define MAP_GROWSDOWN  0x0100          /* Stack-like segment.  */
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# define MAP_DENYWRITE  0x0800          /* ETXTBSY */
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# define MAP_EXECUTABLE 0x1000          /* Mark it as an executable.  */
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# define MAP_LOCKED     0x2000          /* Lock the mapping.  */
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# define MAP_NORESERVE  0x4000          /* Don't check for reservations.  */
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#endif
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/* Flags to `msync'.  */
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#define MS_ASYNC        1               /* Sync memory asynchronously.  */
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#define MS_SYNC         4               /* Synchronous memory sync.  */
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#define MS_INVALIDATE   2               /* Invalidate the caches.  */
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/* Flags for `mlockall'.  */
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#define MCL_CURRENT     1               /* Lock all currently mapped pages.  */
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#define MCL_FUTURE      2               /* Lock all additions to address
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                                           space.  */
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/* Flags for `mremap'.  */
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#ifdef __USE_GNU
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# define MREMAP_MAYMOVE 1
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#endif

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