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sys/mman.h: New file. Clean up and add supporting stubs
* Makefile.am updated and preinstall.am regenerated. * mprotect.c had a prototype removed now that we have mman.h * mmap.c, munmap.c: New stub files.
This commit is contained in:
Joel Sherrill
@@ -50,6 +50,7 @@ include_sys_HEADERS =
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include_HEADERS += include/crypt.h
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include_HEADERS += include/memory.h
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include_sys_HEADERS += posix/include/sys/mman.h
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include_sys_HEADERS += libcsupport/include/sys/ioccom.h
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include_sys_HEADERS += libcsupport/include/sys/event.h
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include_sys_HEADERS += libcsupport/include/sys/filio.h
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@@ -91,7 +91,9 @@ libposix_a_SOURCES += src/cond.c src/condattrdestroy.c \
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src/condtimedwait.c src/condwait.c src/condwaitsupp.c src/condget.c
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## MEMORY_C_FILES
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libposix_a_SOURCES += src/mmap.c
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libposix_a_SOURCES += src/mprotect.c
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libposix_a_SOURCES += src/munmap.c
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## MESSAGE_QUEUE_C_FILES
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libposix_a_SOURCES += src/mqueue.c src/mqueueclose.c \
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@@ -0,0 +1,189 @@
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/* $NetBSD: mman.h,v 1.36 2005/09/13 01:42:51 christos Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mman.h 8.2 (Berkeley) 1/9/95
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*/
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#ifndef _SYS_MMAN_H_
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#define _SYS_MMAN_H_
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#ifdef __rtems__
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#include <inttypes.h>
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#include <stddef.h>
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#include <sys/types.h>
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#else /* __rtems__ */
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#include <sys/featuretest.h>
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#include <machine/ansi.h>
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#include <sys/ansi.h>
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#ifndef mode_t
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typedef __mode_t mode_t;
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#define mode_t __mode_t
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#endif
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#ifndef off_t
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typedef __off_t off_t; /* file offset */
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#define off_t __off_t
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#endif
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#endif /* __rtems__ */
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/*
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* Protections are chosen from these bits, or-ed together
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*/
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#define PROT_NONE 0x00 /* no permissions */
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#define PROT_READ 0x01 /* pages can be read */
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#define PROT_WRITE 0x02 /* pages can be written */
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#define PROT_EXEC 0x04 /* pages can be executed */
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/*
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* Flags contain sharing type and options.
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* Sharing types; choose one.
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*/
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#define MAP_SHARED 0x0001 /* share changes */
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#define MAP_PRIVATE 0x0002 /* changes are private */
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#ifdef _KERNEL
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/*
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* Deprecated flag; these are treated as MAP_PRIVATE internally by
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* the kernel.
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*/
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#define MAP_COPY 0x0004 /* "copy" region at mmap time */
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#endif
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/*
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* Other flags
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*/
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#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */
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#define MAP_RENAME 0x0020 /* Sun: rename private pages to file */
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#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */
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#define MAP_INHERIT 0x0080 /* region is retained after exec */
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#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
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#define MAP_TRYFIXED 0x0400 /* attempt hint address, even within break */
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#define MAP_WIRED 0x0800 /* mlock() mapping when it is established */
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/*
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* Mapping type
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*/
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#define MAP_FILE 0x0000 /* map from file (default) */
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#define MAP_ANON 0x1000 /* allocated from memory, swap space */
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/*
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* Alignment (expressed in log2). Must be >= log2(PAGE_SIZE) and
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* < # bits in a pointer (26 (acorn26), 32 or 64).
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*/
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#define MAP_ALIGNED(n) ((n) << MAP_ALIGNMENT_SHIFT)
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#define MAP_ALIGNMENT_SHIFT 24
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#define MAP_ALIGNMENT_MASK MAP_ALIGNED(0xff)
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#define MAP_ALIGNMENT_64KB MAP_ALIGNED(16) /* 2^16 */
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#define MAP_ALIGNMENT_16MB MAP_ALIGNED(24) /* 2^24 */
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#define MAP_ALIGNMENT_4GB MAP_ALIGNED(32) /* 2^32 */
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#define MAP_ALIGNMENT_1TB MAP_ALIGNED(40) /* 2^40 */
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#define MAP_ALIGNMENT_256TB MAP_ALIGNED(48) /* 2^48 */
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#define MAP_ALIGNMENT_64PB MAP_ALIGNED(56) /* 2^56 */
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/*
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* Error indicator returned by mmap(2)
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*/
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#define MAP_FAILED ((void *) -1) /* mmap() failed */
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/*
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* Flags to msync
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*/
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#define MS_ASYNC 0x01 /* perform asynchronous writes */
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#define MS_INVALIDATE 0x02 /* invalidate cached data */
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#define MS_SYNC 0x04 /* perform synchronous writes */
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/*
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* Flags to mlockall
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*/
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#define MCL_CURRENT 0x01 /* lock all pages currently mapped */
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#define MCL_FUTURE 0x02 /* lock all pages mapped in the future */
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#if defined(_NETBSD_SOURCE)
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/*
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* Advice to madvise
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*/
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#define MADV_NORMAL 0 /* no further special treatment */
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#define MADV_RANDOM 1 /* expect random page references */
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#define MADV_SEQUENTIAL 2 /* expect sequential page references */
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#define MADV_WILLNEED 3 /* will need these pages */
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#define MADV_DONTNEED 4 /* dont need these pages */
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#define MADV_SPACEAVAIL 5 /* insure that resources are reserved */
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#define MADV_FREE 6 /* pages are empty, free them */
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/*
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* Flags to minherit
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*/
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#define MAP_INHERIT_SHARE 0 /* share with child */
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#define MAP_INHERIT_COPY 1 /* copy into child */
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#define MAP_INHERIT_NONE 2 /* absent from child */
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#define MAP_INHERIT_DONATE_COPY 3 /* copy and delete -- not
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implemented in UVM */
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#define MAP_INHERIT_DEFAULT MAP_INHERIT_COPY
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#endif
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#ifndef _KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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void *mmap(void *, size_t, int, int, int, off_t);
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int munmap(void *, size_t);
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int mprotect(void *, size_t, int);
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#ifndef __LIBC12_SOURCE__
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#if defined(__rtems__)
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int msync(void *, size_t, int);
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#else
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int msync(void *, size_t, int) __RENAME(__msync13);
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#endif
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#endif
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int mlock(const void *, size_t);
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int munlock(const void *, size_t);
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int mlockall(int);
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int munlockall(void);
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#if defined(_NETBSD_SOURCE)
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int madvise(void *, size_t, int);
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int mincore(void *, size_t, char *);
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int minherit(void *, size_t, int);
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#endif
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__END_DECLS
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#endif /* !_KERNEL */
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#endif /* !_SYS_MMAN_H_ */
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@@ -0,0 +1,26 @@
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/**
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* @file
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*/
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/*
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* COPYRIGHT (c) 2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/mman.h>
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int munmap(
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void *addr __attribute__((unused)),
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size_t length __attribute__((unused))
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)
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{
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return -1;
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}
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@@ -28,16 +28,10 @@
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#endif
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#include <unistd.h>
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/*
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* RTEMS does not have <sys/mman.h> so we need a prototype here to
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* avoid warnings.
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*/
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int mprotect( const void *, size_t, int );
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#include <sys/mman.h>
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int mprotect(
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const void *addr __attribute__((unused)),
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void *addr __attribute__((unused)),
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size_t len __attribute__((unused)),
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int prot __attribute__((unused)) )
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{
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@@ -0,0 +1,30 @@
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/**
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* @file
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*/
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/*
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* COPYRIGHT (c) 2014.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/mman.h>
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void *mmap(
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void *addr __attribute__((unused)),
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size_t lenhth __attribute__((unused)),
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int prot __attribute__((unused)),
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int flags __attribute__((unused)),
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int fildes __attribute__((unused)),
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off_t off
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)
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{
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return NULL;
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}
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@@ -59,6 +59,10 @@ $(PROJECT_INCLUDE)/memory.h: include/memory.h $(PROJECT_INCLUDE)/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/memory.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/memory.h
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$(PROJECT_INCLUDE)/sys/mman.h: posix/include/sys/mman.h $(PROJECT_INCLUDE)/sys/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/sys/mman.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/sys/mman.h
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$(PROJECT_INCLUDE)/sys/ioccom.h: libcsupport/include/sys/ioccom.h $(PROJECT_INCLUDE)/sys/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/sys/ioccom.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/sys/ioccom.h
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