This mman.h is copied verbatim from the upstream freebsd sources
pulled from the freebsd-org submodule used by rtems for the
rtems-libbsd project: https://git.rtems.org/rtems-libbsd/tree/
On Mon, Aug 1, 2016 at 3:55 PM, Gedare Bloom <ged...@rtems.org> wrote:
> ---
> newlib/libc/sys/rtems/include/sys/mman.h | 263
> +++++++++++++++++++++++++++++++
> 1 file changed, 263 insertions(+)
> create mode 100644 newlib/libc/sys/rtems/include/sys/mman.h
>
> diff --git a/newlib/libc/sys/rtems/include/sys/mman.h
> b/newlib/libc/sys/rtems/include/sys/mman.h
> new file mode 100644
> index 0000000..e7e5cf4
> --- /dev/null
> +++ b/newlib/libc/sys/rtems/include/sys/mman.h
> @@ -0,0 +1,263 @@
> +/*-
> + * 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.
> + * 4. 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
> + * $FreeBSD$
> + */
> +
> +#ifndef _SYS_MMAN_H_
> +#define _SYS_MMAN_H_
> +
> +#include <sys/cdefs.h>
> +#include <sys/_types.h>
> +
> +#if __BSD_VISIBLE
> +/*
> + * Inheritance for minherit()
> + */
> +#define INHERIT_SHARE 0
> +#define INHERIT_COPY 1
> +#define INHERIT_NONE 2
> +#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.
> + */
> +#define MAP_SHARED 0x0001 /* share changes */
> +#define MAP_PRIVATE 0x0002 /* changes are private */
> +#if __BSD_VISIBLE
> +#define MAP_COPY MAP_PRIVATE /* Obsolete */
> +#endif
> +
> +/*
> + * Other flags
> + */
> +#define MAP_FIXED 0x0010 /* map addr must be exactly as
> requested */
> +
> +#if __BSD_VISIBLE
> +#define MAP_RENAME 0x0020 /* Sun: rename private pages to file
> */
> +#define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap
> area */
> +#define MAP_RESERVED0080 0x0080 /* previously misimplemented
> MAP_INHERIT */
> +#define MAP_RESERVED0100 0x0100 /* previously unimplemented
> MAP_NOEXTEND */
> +#define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */
> +#define MAP_STACK 0x0400 /* region grows down, like a stack */
> +#define MAP_NOSYNC 0x0800 /* page to but do not sync underlying
> file */
> +
> +/*
> + * Mapping type
> + */
> +#define MAP_FILE 0x0000 /* map from file (default) */
> +#define MAP_ANON 0x1000 /* allocated from memory, swap space
> */
> +#ifndef _KERNEL
> +#define MAP_ANONYMOUS MAP_ANON /* For compatibility. */
> +#endif /* !_KERNEL */
> +
> +/*
> + * Extended flags
> + */
> +#define MAP_NOCORE 0x00020000 /* dont include these pages in a
> coredump */
> +#define MAP_PREFAULT_READ 0x00040000 /* prefault mapping for reading
> */
> +
> +/*
> + * Request specific alignment (n == log2 of the desired alignment).
> + *
> + * MAP_ALIGNED_SUPER requests optimal superpage alignment, but does
> + * not enforce a specific alignment.
> + */
> +#define MAP_ALIGNED(n) ((n) << MAP_ALIGNMENT_SHIFT)
> +#define MAP_ALIGNMENT_SHIFT 24
> +#define MAP_ALIGNMENT_MASK MAP_ALIGNED(0xff)
> +#define MAP_ALIGNED_SUPER MAP_ALIGNED(1) /* align on a
> superpage */
> +#endif /* __BSD_VISIBLE */
> +
> +#if __POSIX_VISIBLE >= 199309
> +/*
> + * Process memory locking
> + */
> +#define MCL_CURRENT 0x0001 /* Lock only current memory */
> +#define MCL_FUTURE 0x0002 /* Lock all future memory as well */
> +#endif
> +
> +/*
> + * Error return from mmap()
> + */
> +#define MAP_FAILED ((void *)-1)
> +
> +/*
> + * msync() flags
> + */
> +#define MS_SYNC 0x0000 /* msync synchronously */
> +#define MS_ASYNC 0x0001 /* return immediately */
> +#define MS_INVALIDATE 0x0002 /* invalidate all cached data */
> +
> +/*
> + * Advice to madvise
> + */
> +#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 /* dont need these pages */
> +
> +#if __BSD_VISIBLE
> +#define MADV_NORMAL _MADV_NORMAL
> +#define MADV_RANDOM _MADV_RANDOM
> +#define MADV_SEQUENTIAL _MADV_SEQUENTIAL
> +#define MADV_WILLNEED _MADV_WILLNEED
> +#define MADV_DONTNEED _MADV_DONTNEED
> +#define MADV_FREE 5 /* dont need these pages, and junk
> contents */
> +#define MADV_NOSYNC 6 /* try to avoid flushes to physical
> media */
> +#define MADV_AUTOSYNC 7 /* revert to default flushing
> strategy */
> +#define MADV_NOCORE 8 /* do not include these pages in a
> core file */
> +#define MADV_CORE 9 /* revert to including pages in a
> core file */
> +#define MADV_PROTECT 10 /* protect process from pageout kill
> */
> +
> +/*
> + * Return bits from mincore
> + */
> +#define MINCORE_INCORE 0x1 /* Page is incore */
> +#define MINCORE_REFERENCED 0x2 /* Page has been referenced by
> us */
> +#define MINCORE_MODIFIED 0x4 /* Page has been modified by us
> */
> +#define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */
> +#define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */
> +#define MINCORE_SUPER 0x20 /* Page is a "super" page */
> +
> +/*
> + * Anonymous object constant for shm_open().
> + */
> +#define SHM_ANON ((char *)1)
> +#endif /* __BSD_VISIBLE */
> +
> +/*
> + * XXX missing POSIX_TYPED_MEM_* macros and
> + * posix_typed_mem_info structure.
> + */
> +#if __POSIX_VISIBLE >= 200112
> +#define POSIX_MADV_NORMAL _MADV_NORMAL
> +#define POSIX_MADV_RANDOM _MADV_RANDOM
> +#define POSIX_MADV_SEQUENTIAL _MADV_SEQUENTIAL
> +#define POSIX_MADV_WILLNEED _MADV_WILLNEED
> +#define POSIX_MADV_DONTNEED _MADV_DONTNEED
> +#endif
> +
> +#ifndef _MODE_T_DECLARED
> +typedef __mode_t mode_t;
> +#define _MODE_T_DECLARED
> +#endif
> +
> +#ifndef _OFF_T_DECLARED
> +typedef __off_t off_t;
> +#define _OFF_T_DECLARED
> +#endif
> +
> +#ifndef _SIZE_T_DECLARED
> +typedef __size_t size_t;
> +#define _SIZE_T_DECLARED
> +#endif
> +
> +#if defined(_KERNEL) || defined(_WANT_FILE)
> +#include <vm/vm.h>
> +
> +struct file;
> +
> +struct shmfd {
> + size_t shm_size;
> + vm_object_t shm_object;
> + int shm_refs;
> + uid_t shm_uid;
> + gid_t shm_gid;
> + mode_t shm_mode;
> + int shm_kmappings;
> +
> + /*
> + * Values maintained solely to make this a better-behaved file
> + * descriptor for fstat() to run on.
> + */
> + struct timespec shm_atime;
> + struct timespec shm_mtime;
> + struct timespec shm_ctime;
> + struct timespec shm_birthtime;
> + ino_t shm_ino;
> +
> + struct label *shm_label; /* MAC label */
> + const char *shm_path;
> +};
> +#endif
> +
> +#ifdef _KERNEL
> +int shm_mmap(struct shmfd *shmfd, vm_size_t objsize, vm_ooffset_t foff,
> + vm_object_t *obj);
> +int shm_map(struct file *fp, size_t size, off_t offset, void **memp);
> +int shm_unmap(struct file *fp, void *mem, size_t size);
> +void shm_path(struct shmfd *shmfd, char *path, size_t size);
> +
> +#else /* !_KERNEL */
> +
> +__BEGIN_DECLS
> +/*
> + * XXX not yet implemented: posix_mem_offset(), posix_typed_mem_get_info(),
> + * posix_typed_mem_open().
> + */
> +#if __BSD_VISIBLE
> +int getpagesizes(size_t *, int);
> +int madvise(void *, size_t, int);
> +int mincore(const void *, size_t, char *);
> +int minherit(void *, size_t, int);
> +#endif
> +int mlock(const void *, size_t);
> +#ifndef _MMAP_DECLARED
> +#define _MMAP_DECLARED
> +void * mmap(void *, size_t, int, int, int, off_t);
> +#endif
> +int mprotect(const void *, size_t, int);
> +int msync(void *, size_t, int);
> +int munlock(const void *, size_t);
> +int munmap(void *, size_t);
> +#if __POSIX_VISIBLE >= 200112
> +int posix_madvise(void *, size_t, int);
> +#endif
> +#if __POSIX_VISIBLE >= 199309
> +int mlockall(int);
> +int munlockall(void);
> +int shm_open(const char *, int, mode_t);
> +int shm_unlink(const char *);
> +#endif
> +__END_DECLS
> +
> +#endif /* !_KERNEL */
> +
> +#endif /* !_SYS_MMAN_H_ */
> --
> 1.9.1
>
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