dda632a24f
also cleanup of various minix-specific changes, cleanup of mmap-related testing. Change-Id: I289a4fc50cf8a13df4a6082038d860853a4bd024
217 lines
7 KiB
C
217 lines
7 KiB
C
/* $NetBSD: mman.h,v 1.44 2012/01/05 15:19:52 reinoud Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1982, 1986, 1993
|
|
* The Regents of the University of California. 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.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)mman.h 8.2 (Berkeley) 1/9/95
|
|
*/
|
|
|
|
#ifndef _SYS_MMAN_H_
|
|
#define _SYS_MMAN_H_
|
|
|
|
#include <sys/featuretest.h>
|
|
|
|
#include <machine/ansi.h>
|
|
|
|
#ifdef _BSD_SIZE_T_
|
|
typedef _BSD_SIZE_T_ size_t;
|
|
#undef _BSD_SIZE_T_
|
|
#endif
|
|
|
|
#include <sys/ansi.h>
|
|
|
|
#ifndef mode_t
|
|
typedef __mode_t mode_t;
|
|
#define mode_t __mode_t
|
|
#endif
|
|
|
|
#ifndef off_t
|
|
typedef __off_t off_t; /* file offset */
|
|
#define off_t __off_t
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Protections are chosen from these bits, or-ed together
|
|
*/
|
|
#define PROT_NONE 0x00 /* no permissions */
|
|
#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 sharing type and options.
|
|
* Sharing types; choose one.
|
|
*/
|
|
#ifndef __minix
|
|
#define MAP_SHARED 0x0001 /* share changes */
|
|
#endif
|
|
#define MAP_PRIVATE 0x0002 /* changes are private */
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* Deprecated flag; these are treated as MAP_PRIVATE internally by
|
|
* the kernel.
|
|
*/
|
|
#define MAP_COPY 0x0004 /* "copy" region at mmap time */
|
|
#endif
|
|
|
|
/*
|
|
* Other flags
|
|
*/
|
|
#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */
|
|
#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */
|
|
#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */
|
|
#define MAP_INHERIT 0x0080 /* region is retained after exec */
|
|
#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
|
|
#define MAP_TRYFIXED 0x0400 /* attempt hint address, even within break */
|
|
#define MAP_WIRED 0x0800 /* mlock() mapping when it is established */
|
|
|
|
/*
|
|
* Mapping type
|
|
*/
|
|
#define MAP_FILE 0x0000 /* map from file (default) */
|
|
#define MAP_ANON 0x1000 /* allocated from memory, swap space */
|
|
#define MAP_STACK 0x2000 /* allocated from memory, swap space (stack) */
|
|
|
|
/*
|
|
* Alignment (expressed in log2). Must be >= log2(PAGE_SIZE) and
|
|
* < # bits in a pointer (26 (acorn26), 32 or 64).
|
|
*/
|
|
#define MAP_ALIGNED(n) ((n) << MAP_ALIGNMENT_SHIFT)
|
|
#define MAP_ALIGNMENT_SHIFT 24
|
|
#define MAP_ALIGNMENT_MASK MAP_ALIGNED(0xff)
|
|
#define MAP_ALIGNMENT_64KB MAP_ALIGNED(16) /* 2^16 */
|
|
#define MAP_ALIGNMENT_16MB MAP_ALIGNED(24) /* 2^24 */
|
|
#define MAP_ALIGNMENT_4GB MAP_ALIGNED(32) /* 2^32 */
|
|
#define MAP_ALIGNMENT_1TB MAP_ALIGNED(40) /* 2^40 */
|
|
#define MAP_ALIGNMENT_256TB MAP_ALIGNED(48) /* 2^48 */
|
|
#define MAP_ALIGNMENT_64PB MAP_ALIGNED(56) /* 2^56 */
|
|
|
|
#ifdef __minix
|
|
/*
|
|
* Minix-specific flags
|
|
*/
|
|
#define MAP_UNINITIALIZED 0x040000 /* do not clear memory */
|
|
#define MAP_PREALLOC 0x080000 /* not on-demand */
|
|
#define MAP_CONTIG 0x100000 /* contiguous in physical memory */
|
|
#define MAP_LOWER16M 0x200000 /* physically below 16MB */
|
|
#define MAP_LOWER1M 0x400000 /* physically below 16MB */
|
|
#define MAP_THIRDPARTY 0x800000 /* perform on behalf of any process */
|
|
#endif
|
|
|
|
/*
|
|
* Error indicator returned by mmap(2)
|
|
*/
|
|
#define MAP_FAILED ((void *) -1) /* mmap() failed */
|
|
|
|
/*
|
|
* Flags to msync
|
|
*/
|
|
#define MS_ASYNC 0x01 /* perform asynchronous writes */
|
|
#define MS_INVALIDATE 0x02 /* invalidate cached data */
|
|
#define MS_SYNC 0x04 /* perform synchronous writes */
|
|
|
|
/*
|
|
* Flags to mlockall
|
|
*/
|
|
#define MCL_CURRENT 0x01 /* lock all pages currently mapped */
|
|
#define MCL_FUTURE 0x02 /* lock all pages mapped in the future */
|
|
|
|
/*
|
|
* POSIX memory avissory values.
|
|
* Note: keep consistent with the original defintions below.
|
|
*/
|
|
#define POSIX_MADV_NORMAL 0 /* No further special treatment */
|
|
#define POSIX_MADV_RANDOM 1 /* Expect random page references */
|
|
#define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references */
|
|
#define POSIX_MADV_WILLNEED 3 /* Will need these pages */
|
|
#define POSIX_MADV_DONTNEED 4 /* Don't need these pages */
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
/*
|
|
* Original advice values, equivalent to POSIX defintions,
|
|
* and few implementation-specific ones.
|
|
*/
|
|
#define MADV_NORMAL POSIX_MADV_NORMAL
|
|
#define MADV_RANDOM POSIX_MADV_RANDOM
|
|
#define MADV_SEQUENTIAL POSIX_MADV_SEQUENTIAL
|
|
#define MADV_WILLNEED POSIX_MADV_WILLNEED
|
|
#define MADV_DONTNEED POSIX_MADV_DONTNEED
|
|
#define MADV_SPACEAVAIL 5 /* Insure that resources are reserved */
|
|
#define MADV_FREE 6 /* Pages are empty, free them */
|
|
|
|
/*
|
|
* Flags to minherit
|
|
*/
|
|
#define MAP_INHERIT_SHARE 0 /* share with child */
|
|
#define MAP_INHERIT_COPY 1 /* copy into child */
|
|
#define MAP_INHERIT_NONE 2 /* absent from child */
|
|
#define MAP_INHERIT_DONATE_COPY 3 /* copy and delete -- not
|
|
implemented in UVM */
|
|
#define MAP_INHERIT_DEFAULT MAP_INHERIT_COPY
|
|
#endif
|
|
|
|
#ifndef _KERNEL
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
void * mmap(void *, size_t, int, int, int, off_t);
|
|
int munmap(void *, size_t);
|
|
int mprotect(void *, size_t, int);
|
|
#ifndef __LIBC12_SOURCE__
|
|
int msync(void *, size_t, int) __RENAME(__msync13);
|
|
#endif
|
|
int mlock(const void *, size_t);
|
|
int munlock(const void *, size_t);
|
|
int mlockall(int);
|
|
int munlockall(void);
|
|
#if defined(_NETBSD_SOURCE)
|
|
int madvise(void *, size_t, int);
|
|
int mincore(void *, size_t, char *);
|
|
int minherit(void *, size_t, int);
|
|
void * mremap(void *, size_t, void *, size_t, int);
|
|
#endif
|
|
int posix_madvise(void *, size_t, int);
|
|
|
|
#ifdef __minix
|
|
#include <minix/endpoint.h>
|
|
void * vm_remap(endpoint_t d, endpoint_t s, void *da, void *sa, size_t si);
|
|
void * vm_remap_ro(endpoint_t d, endpoint_t s, void *da, void *sa, size_t si);
|
|
int vm_unmap(endpoint_t endpt, void *addr);
|
|
unsigned long vm_getphys(endpoint_t endpt, void *addr);
|
|
u8_t vm_getrefcount(endpoint_t endpt, void *addr);
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* !_KERNEL */
|
|
|
|
#endif /* !_SYS_MMAN_H_ */
|