rt-thread/components/libc/compilers/newlib/sys/mman.h

/*
 * File      : mman.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2017, RT-Thread Development Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Change Logs:
 * Date           Author       Notes
 * 2017/11/30     Bernard      The first version.
 */

#ifndef _SYS_MMAN_H
#define _SYS_MMAN_H

#ifdef __cplusplus
extern "C" {
#endif

#define MAP_FAILED     ((void *) -1)

#define MAP_SHARED     0x01
#define MAP_PRIVATE    0x02
#define MAP_TYPE       0x0f
#define MAP_FIXED      0x10
#define MAP_ANON       0x20
#define MAP_ANONYMOUS  MAP_ANON
#define MAP_NORESERVE  0x4000
#define MAP_GROWSDOWN  0x0100
#define MAP_DENYWRITE  0x0800
#define MAP_EXECUTABLE 0x1000
#define MAP_LOCKED     0x2000
#define MAP_POPULATE   0x8000
#define MAP_NONBLOCK   0x10000
#define MAP_STACK      0x20000
#define MAP_HUGETLB    0x40000
#define MAP_FILE       0

#define PROT_NONE      0
#define PROT_READ      1
#define PROT_WRITE     2
#define PROT_EXEC      4
#define PROT_GROWSDOWN 0x01000000
#define PROT_GROWSUP   0x02000000

#define MS_ASYNC       1
#define MS_INVALIDATE  2
#define MS_SYNC        4

#define MCL_CURRENT    1
#define MCL_FUTURE     2
#define MCL_ONFAULT    4

void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off);
int munmap (void *start, size_t len);

#ifdef __cplusplus
}
#endif
#endif