mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-04 16:50:13 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
72 lines
3.0 KiB
C
72 lines
3.0 KiB
C
/* Flags for BSD-style memory management. OSF/1 version.
|
|
Copyright (C) 1994, 1995, 1996, 1997, 1998 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#ifndef _BITS_MMAN_H
|
|
#define _BITS_MMAN_H 1
|
|
|
|
/* Protections are chosen from these bits, OR'd together. The
|
|
implementation does not necessarily support PROT_EXEC or PROT_WRITE
|
|
without PROT_READ. The only guarantees are that no writing will be
|
|
allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
|
|
|
|
#define PROT_NONE 0x00 /* No access. */
|
|
#define PROT_READ 0x01 /* Pages can be read. */
|
|
#define PROT_WRITE 0x02 /* Pages can be written. */
|
|
#define PROT_EXEC 0x04 /* Pages can be executed. */
|
|
|
|
/* Flags contain mapping type, sharing type and options. */
|
|
|
|
/* Mapping type (must choose one and only one of these). */
|
|
#ifdef __USE_BSD
|
|
# define MAP_FILE 0x00 /* Mapped from a file or device. */
|
|
# define MAP_ANON 0x10 /* Allocated from anonymous virtual memory. */
|
|
# define MAP_ANONYMOUS MAP_ANON
|
|
# define MAP_TYPE 0xf0 /* Mask for type field. */
|
|
#endif
|
|
|
|
/* Sharing types (must choose one and only one of these). */
|
|
#define MAP_SHARED 0x01 /* Share changes. */
|
|
#define MAP_PRIVATE 0x02 /* Changes private; copy pages on write. */
|
|
|
|
/* Other flags. */
|
|
#define MAP_FIXED 0x0100 /* Map address must be exactly as requested. */
|
|
#ifdef __USE_BSD
|
|
# define MAP_VARIABLE 0 /* Absence of MAP_FIXED. */
|
|
# define MAP_HASSEMPHORE 0x0200 /* Region may contain semaphores. */
|
|
# define MAP_INHERIT 0x0400 /* Region is retained after exec. */
|
|
# define MAP_UNALIGNED 0x0800 /* File offset need not be page-aligned. */
|
|
#endif
|
|
|
|
/* Advice to `madvise'. */
|
|
#ifdef __USE_BSD
|
|
# define MADV_NORMAL 0 /* No further special treatment. */
|
|
# define MADV_RANDOM 1 /* Expect random page references. */
|
|
# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
|
|
# define MADV_WILLNEED 3 /* Will need these pages. */
|
|
# define MADV_DONTNEED 4 /* Don't need these pages. */
|
|
# define MADV_SPACEAVAIL 5 /* Ensure that resources are available. */
|
|
#endif
|
|
|
|
/* Flags to `msync'. */
|
|
#define MS_ASYNC 1 /* Asynchronous cache flush. */
|
|
#define MS_SYNC 3 /* Synchronous cache flush. */
|
|
#define MS_INVALIDATE 4 /* Invalidate cached pages. */
|
|
|
|
#endif /* bits/mman.h */
|