/*- * 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 * $FreeBSD: src/sys/sys/mman.h,v 1.29.2.1 2001/08/25 07:25:43 dillon Exp $ */ #ifndef _SYS_MMAN_H_ #define _SYS_MMAN_H_ #include <sys/cdefs.h> #include <machine/stdint.h> #ifndef _MODE_T_DECLARED #define _MODE_T_DECLARED typedef __uint16_t mode_t; /* permissions */ #endif #ifndef _OFF_T_DECLARED #define _OFF_T_DECLARED typedef __off_t off_t; #endif #ifndef _SIZE_T_DECLARED #define _SIZE_T_DECLARED typedef __size_t size_t; #endif #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_RESERVED0020 0x0020 /* previously unimplemented MAP_RENAME */ #define MAP_RESERVED0040 0x0040 /* previously unimplemented MAP_NORESERVE */ #define MAP_INHERIT 0x0080 /* region is retained after exec */ #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 * * NOTE! MAP_VPAGETABLE is used by vkernels for software page tables. * */ #define MAP_FILE 0x0000 /* map from file (default) */ #define MAP_ANON 0x1000 /* allocated from memory, swap space */ #define MAP_ANONYMOUS MAP_ANON /* alias for compatibility */ #define MAP_VPAGETABLE 0x2000 /* manage with virtualized page table */ /* * Extended flags */ #define MAP_TRYFIXED 0x00010000 /* attempt hint address, even within heap */ #define MAP_NOCORE 0x00020000 /* dont include these pages in a coredump */ #define MAP_SIZEALIGN 0x00040000 /* size is also an alignment requirement */ #define MAP_32BIT 0x00080000 /* allocate from 32-bit addr space only */ #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 /* __POSIX_VISIBLE >= 199309 */ /* * 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_INVAL 10 /* virt page tables have changed, inval pmap */ #define MADV_SETMAP 11 /* set page table directory page for map */ #endif /* * Advice to posix_madvise() */ #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 #if __BSD_VISIBLE /* * mcontrol() must be used for these functions instead of madvise() */ #define MADV_CONTROL_START MADV_INVAL #define MADV_CONTROL_END MADV_SETMAP /* * 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 */ #endif __BEGIN_DECLS #if __POSIX_VISIBLE >= 199309 int mlockall(int); int munlockall(void); int shm_open(const char *, int, mode_t); int shm_unlink(const char *); #endif /* __POSIX_VISIBLE >= 199309 */ int mlock(const void *, size_t); void * mmap(void *, size_t, int, int, int, off_t); int mprotect(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 __BSD_VISIBLE int madvise(void *, size_t, int); int mcontrol(void *, size_t, int, off_t); int mincore(const void *, size_t, char *); int minherit(void *, size_t, int); #endif __END_DECLS #endif
