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/*
* Copyright (c) 2003 The FreeBSD Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/mman.h>
typedef int32_t l_long;
typedef unsigned int l_uint;
typedef l_long l_off_t;
typedef l_uint l_size_t;
/* mmap options */
#define LINUX_MAP_SHARED 0x0001
#define LINUX_MAP_PRIVATE 0x0002
#define LINUX_MAP_FIXED 0x0010
#define LINUX_MAP_ANON 0x0020
#define LINUX_MAP_GROWSDOWN 0x0100
void *
Mmap(void *addr, l_size_t len, int prot, int flags, int fd, l_off_t offset)
{
int bsd_flags = 0;
if (flags & LINUX_MAP_SHARED ) bsd_flags |= MAP_SHARED;
if (flags & LINUX_MAP_PRIVATE) bsd_flags |= MAP_PRIVATE;
if (flags & LINUX_MAP_FIXED ) bsd_flags |= MAP_FIXED;
if (flags & LINUX_MAP_ANON ) bsd_flags |= MAP_ANON;
else bsd_flags |= MAP_NOSYNC;
if (flags & LINUX_MAP_GROWSDOWN) bsd_flags |= MAP_STACK;
prot |= PROT_READ; /* always required */
if (flags & LINUX_MAP_ANON)
fd = -1;
return mmap(addr, (size_t) len, prot, bsd_flags, fd, (off_t) offset);
}
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