X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/55e303ae13a4cf49d70f2294092726f2fffb9ef2..593a1d5fd87cdf5b46dd5fcb84467b432cea0f91:/bsd/sys/mman.h diff --git a/bsd/sys/mman.h b/bsd/sys/mman.h index 1e2c8c926..f3eb0578e 100644 --- a/bsd/sys/mman.h +++ b/bsd/sys/mman.h @@ -1,16 +1,19 @@ /* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER @@ -20,7 +23,7 @@ * Please see the License for the specific language governing rights and * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /*- @@ -58,127 +61,188 @@ * @(#)mman.h 8.1 (Berkeley) 6/2/93 */ +/* + * Currently unsupported: + * + * [TYM] POSIX_TYPED_MEM_ALLOCATE + * [TYM] POSIX_TYPED_MEM_ALLOCATE_CONTIG + * [TYM] POSIX_TYPED_MEM_MAP_ALLOCATABLE + * [TYM] struct posix_typed_mem_info + * [TYM] posix_mem_offset() + * [TYM] posix_typed_mem_get_info() + * [TYM] posix_typed_mem_open() + */ + #ifndef _SYS_MMAN_H_ #define _SYS_MMAN_H_ #include -#include +#include + +#include + +/* + * [various] The mode_t, off_t, and size_t types shall be defined as + * described in + */ +#ifndef _MODE_T +typedef __darwin_mode_t mode_t; +#define _MODE_T +#endif + +#ifndef _OFF_T +typedef __darwin_off_t off_t; +#define _OFF_T +#endif + +#ifndef _SIZE_T +#define _SIZE_T +typedef __darwin_size_t size_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 */ +#define PROT_NONE 0x00 /* [MC2] no permissions */ +#define PROT_READ 0x01 /* [MC2] pages can be read */ +#define PROT_WRITE 0x02 /* [MC2] pages can be written */ +#define PROT_EXEC 0x04 /* [MC2] 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 */ +#define MAP_SHARED 0x0001 /* [MF|SHM] share changes */ +#define MAP_PRIVATE 0x0002 /* [MF|SHM] changes are private */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define MAP_COPY MAP_PRIVATE /* Obsolete */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ /* * Other flags */ -#define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ +#define MAP_FIXED 0x0010 /* [MF|SHM] interpret addr exactly */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #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 unimplemented MAP_INHERIT */ #define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ #define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ +#define MAP_NOCACHE 0x0400 /* don't cache pages for this mapping */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ -#ifdef _P1003_1B_VISIBLE /* * Process memory locking */ -#define MCL_CURRENT 0x0001 /* Lock only current memory */ -#define MCL_FUTURE 0x0002 /* Lock all future memory as well */ - -#endif /* _P1003_1B_VISIBLE */ +#define MCL_CURRENT 0x0001 /* [ML] Lock only current memory */ +#define MCL_FUTURE 0x0002 /* [ML] Lock all future memory as well */ /* * Error return from mmap() */ -#define MAP_FAILED ((void *)-1) +#define MAP_FAILED ((void *)-1) /* [MF|SHM] mmap failed */ /* * msync() flags */ -#define MS_SYNC 0x0000 /* msync synchronously */ -#define MS_ASYNC 0x0001 /* return immediately */ -#define MS_INVALIDATE 0x0002 /* invalidate all cached data */ +#define MS_ASYNC 0x0001 /* [MF|SIO] return immediately */ +#define MS_INVALIDATE 0x0002 /* [MF|SIO] invalidate all cached data */ +#define MS_SYNC 0x0010 /* [MF|SIO] msync synchronously */ -#ifndef _POSIX_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define MS_KILLPAGES 0x0004 /* invalidate pages, leave mapped */ #define MS_DEACTIVATE 0x0008 /* deactivate pages, leave mapped */ -#endif /* * Mapping type */ #define MAP_FILE 0x0000 /* map from file (default) */ #define MAP_ANON 0x1000 /* allocated from memory, swap space */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ + /* * 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 */ -#define MADV_FREE 5 /* dont need these pages, and junk contents */ -#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 +#define POSIX_MADV_NORMAL 0 /* [MC1] no further special treatment */ +#define POSIX_MADV_RANDOM 1 /* [MC1] expect random page refs */ +#define POSIX_MADV_SEQUENTIAL 2 /* [MC1] expect sequential page refs */ +#define POSIX_MADV_WILLNEED 3 /* [MC1] will need these pages */ +#define POSIX_MADV_DONTNEED 4 /* [MC1] dont need these pages */ + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#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_FREE 5 /* pages unneeded, discard contents */ /* * 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_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 */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ -#ifndef KERNEL -#include +#ifndef KERNEL __BEGIN_DECLS -#ifdef _P1003_1B_VISIBLE -int mlockall __P((int)); -int munlockall __P((void)); -#endif /* _P1003_1B_VISIBLE */ -int mlock __P((const void *, size_t)); -#ifndef _MMAP_DECLARED -#define _MMAP_DECLARED -void * mmap __P((void *, size_t, int, int, int, off_t)); +/* [ML] */ +int mlockall(int); +int munlockall(void); +/* [MR] */ +int mlock(const void *, size_t); +#ifndef _MMAP +#define _MMAP +/* [MC3]*/ +void * mmap(void *, size_t, int, int, int, off_t) __DARWIN_ALIAS(mmap); #endif -int mprotect __P((const void *, size_t, int)); -int msync __P((void *, size_t, int)); -int munlock __P((const void *, size_t)); -int munmap __P((void *, size_t)); -int shm_open __P((const char *, int, ...)); -int shm_unlink __P((const char *)); -int posix_madvise __P((void *, size_t, int)); -#ifndef _POSIX_SOURCE -#ifdef __APPLE_API_PRIVATE -int load_shared_file __P((char *, caddr_t, u_long, - caddr_t *, int, sf_mapping_t *, int *)); -int reset_shared_file __P((caddr_t *, int, sf_mapping_t *)); -int new_system_shared_regions __P((void)); -#endif /* __APPLE_API_PRIVATE */ -int madvise __P((void *, size_t, int)); -int mincore __P((const void *, size_t, char *)); -int minherit __P((void *, size_t, int)); +/* [MPR] */ +int mprotect(void *, size_t, int) __DARWIN_ALIAS(mprotect); +/* [MF|SIO] */ +int msync(void *, size_t, int) __DARWIN_ALIAS_C(msync); +/* [MR] */ +int munlock(const void *, size_t); +/* [MC3]*/ +int munmap(void *, size_t) __DARWIN_ALIAS(munmap); +/* [SHM] */ +int shm_open(const char *, int, ...); +int shm_unlink(const char *); +/* [ADV] */ +int posix_madvise(void *, size_t, int); + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +int madvise(void *, size_t, int); +int mincore(const void *, size_t, char *); +int minherit(void *, size_t, int); #endif __END_DECLS -#endif /* !KERNEL */ +#else /* KERNEL */ + +void pshm_cache_init(void) __attribute__((section("__TEXT, initcode"))); /* for bsd_init() */ +void pshm_lock_init(void); + +/* + * XXX routine exported by posix_shm.c, but never used there, only used in + * XXX kern_mman.c in the implementation of mmap(). + */ +struct mmap_args; +struct fileproc; +int pshm_mmap(struct proc *p, struct mmap_args *uap, user_addr_t *retval, + struct fileproc *fp, off_t pageoff); +/* Really need to overhaul struct fileops to avoid this... */ +struct pshmnode; +struct stat; +int pshm_stat(struct pshmnode *pnode, void *ub, int isstat64); +struct fileproc; +int pshm_truncate(struct proc *p, struct fileproc *fp, int fd, off_t length, register_t *retval); + +#endif /* KERNEL */ #endif /* !_SYS_MMAN_H_ */