/* * Copyright (c) 2000-2013 Apple 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. 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 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ /* * Copyright (c) 1987, 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 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. * * @(#)malloc.h 8.5 (Berkeley) 5/3/95 */ /* * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce * support for mandatory and extensible security protections. This notice * is included in support of clause 2.2 (b) of the Apple Public License, * Version 2.0. */ #ifndef _SYS_MALLOC_H_ #define _SYS_MALLOC_H_ #include <sys/appleapiopts.h> #ifdef KERNEL /* * flags to malloc */ #define M_WAITOK 0x0000 #define M_NOWAIT 0x0001 #define M_ZERO 0x0004 /* bzero the allocation */ #define M_NULL 0x0008 /* return NULL if space is unavailable*/ #ifdef BSD_KERNEL_PRIVATE #define KMEMSTATS 0 /* * Types of memory to be allocated (not all are used by us) */ #define M_FREE 0 /* should be on free list */ #define M_MBUF 1 /* mbuf */ #define M_DEVBUF 2 /* device driver memory */ #define M_SOCKET 3 /* socket structure */ #define M_PCB 4 /* protocol control block */ #define M_RTABLE 5 /* routing tables */ #define M_HTABLE 6 /* IMP host tables */ #define M_FTABLE 7 /* fragment reassembly header */ #define M_ZOMBIE 8 /* zombie proc status */ #define M_IFADDR 9 /* interface address */ #define M_SOOPTS 10 /* socket options */ #define M_SONAME 11 /* socket name */ #define M_NAMEI 12 /* namei path name buffer */ #define M_GPROF 13 /* kernel profiling buffer */ #define M_IOCTLOPS 14 /* ioctl data buffer */ #define M_MAPMEM 15 /* mapped memory descriptors */ #define M_CRED 16 /* credentials */ #define M_PGRP 17 /* process group header */ #define M_SESSION 18 /* session header */ #define M_IOV32 19 /* large iov's for 32 bit process */ #define M_MOUNT 20 /* vfs mount struct */ #define M_FHANDLE 21 /* network file handle */ #define M_NFSREQ 22 /* NFS request header */ #define M_NFSMNT 23 /* NFS mount structure */ #define M_NFSNODE 24 /* NFS vnode private part */ #define M_VNODE 25 /* Dynamically allocated vnodes */ #define M_CACHE 26 /* Dynamically allocated cache entries */ #define M_DQUOT 27 /* UFS quota entries */ #define M_PROC_UUID_POLICY 28 /* proc UUID policy entries */ #define M_SHM 29 /* SVID compatible shared memory segments */ #define M_PLIMIT 30 /* plimit structures */ #define M_SIGACTS 31 /* sigacts structures */ #define M_VMOBJ 32 /* VM object structure */ #define M_VMOBJHASH 33 /* VM object hash structure */ #define M_VMPMAP 34 /* VM pmap */ #define M_VMPVENT 35 /* VM phys-virt mapping entry */ #define M_VMPAGER 36 /* XXX: VM pager struct */ #define M_VMPGDATA 37 /* XXX: VM pager private data */ #define M_FILEPROC 38 /* Open file structure */ #define M_FILEDESC 39 /* Open file descriptor table */ #define M_LOCKF 40 /* Byte-range locking structures */ #define M_PROC 41 /* Proc structures */ #define M_PSTATS 42 /* pstats proc sub-structures */ #define M_SEGMENT 43 /* Segment for LFS */ #define M_LFSNODE 44 /* LFS vnode private part */ #define M_FFSNODE 45 /* FFS vnode private part */ #define M_MFSNODE 46 /* MFS vnode private part */ #define M_NQLEASE 47 /* XXX: Nqnfs lease */ #define M_NQMHOST 48 /* XXX: Nqnfs host address table */ #define M_NETADDR 49 /* Export host address structure */ #define M_NFSSVC 50 /* NFS server structure */ #define M_NFSUID 51 /* XXX: NFS uid mapping structure */ #define M_NFSD 52 /* NFS server daemon structure */ #define M_IPMOPTS 53 /* internet multicast options */ #define M_IPMADDR 54 /* internet multicast address */ #define M_IFMADDR 55 /* link-level multicast address */ #define M_MRTABLE 56 /* multicast routing tables */ #define M_ISOFSMNT 57 /* ISOFS mount structure */ #define M_ISOFSNODE 58 /* ISOFS vnode private part */ #define M_NFSRVDESC 59 /* NFS server socket descriptor */ #define M_NFSDIROFF 60 /* NFS directory offset data */ #define M_NFSBIGFH 61 /* NFS version 3 file handle */ #define M_MSDOSFSMNT 62 /* MSDOS FS mount structure */ #define M_MSDOSFSFAT 63 /* MSDOS FS fat table */ #define M_MSDOSFSNODE 64 /* MSDOS FS vnode private part */ #define M_TTYS 65 /* allocated tty structures */ #define M_EXEC 66 /* argument lists & other mem used by exec */ #define M_MISCFSMNT 67 /* miscfs mount structures */ #define M_MISCFSNODE 68 /* miscfs vnode private part */ #define M_ADOSFSMNT 69 /* adosfs mount structures */ #define M_ADOSFSNODE 70 /* adosfs vnode private part */ #define M_ANODE 71 /* adosfs anode structures and tables. */ #define M_BUFHDR 72 /* File buffer cache headers */ #define M_OFILETABL 73 /* Open file descriptor table */ #define M_MCLUST 74 /* mbuf cluster buffers */ /* unused 75 */ /* unused 76 */ /* unused 77 */ /* unused 78 */ /* unused 79 */ #define M_TEMP 80 /* misc temporary data buffers */ #define M_SECA 81 /* security associations, key management */ #define M_DEVFS 82 #define M_IPFW 83 /* IP Forwarding/NAT */ #define M_UDFNODE 84 /* UDF inodes */ #define M_UDFMNT 85 /* UDF mount structures */ #define M_IP6NDP 86 /* IPv6 Neighbour Discovery*/ #define M_IP6OPT 87 /* IPv6 options management */ #define M_IP6MISC 88 /* IPv6 misc. memory */ /* unused 89 */ #define M_IGMP 90 /* unused 91 */ /* unused 92 */ #define M_SPECINFO 93 /* special file node */ #define M_KQUEUE 94 /* kqueue system */ /* unused 95 */ #define M_CLRDAHEAD 96 /* storage for cluster read-ahead state */ #define M_CLWRBEHIND 97 /* storage for cluster write-behind state */ #define M_IOV64 98 /* large iov's for 64 bit process */ #define M_FILEGLOB 99 /* fileglobal */ #define M_KAUTH 100 /* kauth subsystem */ #define M_DUMMYNET 101 /* dummynet */ /* M_UNSAFEFS 102 */ #define M_MACPIPELABEL 103 /* MAC pipe labels */ #define M_MACTEMP 104 /* MAC framework */ #define M_SBUF 105 /* string buffers */ #define M_EXTATTR 106 /* extended attribute */ #define M_SELECT 107 /* per-thread select memory */ /* M_TRAFFIC_MGT 108 */ #if FS_COMPRESSION #define M_DECMPFS_CNODE 109 /* decmpfs cnode structures */ #endif /* FS_COMPRESSION */ #define M_INMFILTER 110 /* IPv4 multicast PCB-layer source filter */ #define M_IPMSOURCE 111 /* IPv4 multicast IGMP-layer source filter */ #define M_IN6MFILTER 112 /* IPv6 multicast PCB-layer source filter */ #define M_IP6MOPTS 113 /* IPv6 multicast options */ #define M_IP6MSOURCE 114 /* IPv6 multicast MLD-layer source filter */ #define M_FLOW_DIVERT_PCB 115 /* flow divert control block */ #define M_FLOW_DIVERT_GROUP 116 /* flow divert socket group */ #define M_IP6CGA 117 #define M_NECP 118 /* General NECP policy data */ #define M_NECP_SESSION_POLICY 119 /* NECP session policies */ #define M_NECP_SOCKET_POLICY 120 /* NECP socket-level policies */ #define M_NECP_IP_POLICY 121 /* NECP IP-level policies */ #define M_FD_VN_DATA 122 /* Per fd vnode data */ #define M_FD_DIRBUF 123 /* Directory entries' buffer */ #define M_NETAGENT 124 /* Network Agents */ #define M_EVENTHANDLER 125 /* Eventhandler */ #define M_LLTABLE 126 /* Link layer table */ #define M_NWKWQ 127 /* Network work queue */ #define M_CFIL 128 /* Content Filter */ #define M_LAST 129 /* Must be last type + 1 */ #else /* BSD_KERNEL_PRIVATE */ #define M_RTABLE 5 /* routing tables */ #define M_IFADDR 9 /* interface address (IOFireWireIP)*/ #define M_LOCKF 40 /* Byte-range locking structures (msdos) */ #define M_TEMP 80 /* misc temporary data buffers */ #define M_KAUTH 100 /* kauth subsystem (smb) */ #define M_SONAME 11 /* socket name (smb) */ #define M_PCB 4 /* protocol control block (smb) */ #define M_UDFNODE 84 /* UDF inodes (udf)*/ #define M_UDFMNT 85 /* UDF mount structures (udf)*/ #endif /* BSD_KERNEL_PRIVATE */ #ifdef BSD_KERNEL_PRIVATE #if KMEMSTATS struct kmemstats { long ks_inuse; /* # of packets of this type currently * in use */ long ks_calls; /* total packets of this type ever allocated */ long ks_memuse; /* total memory held in bytes */ u_short ks_limblocks; /* number of times blocked for hitting limit */ u_short ks_mapblocks; /* number of times blocked for kernel map */ long ks_maxused; /* maximum number ever used */ long ks_limit; /* most that are allowed to exist */ long ks_size; /* sizes of this thing that are allocated */ long ks_spare; }; extern struct kmemstats kmemstats[]; #endif /* KMEMSTATS */ #endif /* BSD_KERNEL_PRIVATE */ /* * The malloc/free primatives used * by the BSD kernel code. */ #ifdef XNU_KERNEL_PRIVATE #include <mach/vm_types.h> #define MALLOC(space, cast, size, type, flags) \ ({ VM_ALLOC_SITE_STATIC(0, 0); \ (space) = (cast)__MALLOC(size, type, flags, &site); }) #define REALLOC(space, cast, addr, size, type, flags) \ ({ VM_ALLOC_SITE_STATIC(0, 0); \ (space) = (cast)__REALLOC(addr, size, type, flags, &site); }) #define _MALLOC(size, type, flags) \ ({ VM_ALLOC_SITE_STATIC(0, 0); \ __MALLOC(size, type, flags, &site); }) #define _REALLOC(addr, size, type, flags) \ ({ VM_ALLOC_SITE_STATIC(0, 0); \ __REALLOC(addr, size, type, flags, &site); }) #define _MALLOC_ZONE(size, type, flags) \ ({ VM_ALLOC_SITE_STATIC(0, 0); \ __MALLOC_ZONE(size, type, flags, &site); }) #define FREE(addr, type) \ _Pragma("clang diagnostic push") \ _Pragma("clang diagnostic ignored \"-Wshadow\"") \ do { \ _Static_assert(sizeof (addr) == sizeof (void *) || sizeof (addr) == sizeof (mach_vm_address_t), "addr is not a pointer"); \ void *__tmp_addr = (void *)addr; \ int __tmp_type = type; \ addr = (typeof(addr)) NULL; \ _FREE(__tmp_addr, __tmp_type); \ } while (0) \ _Pragma("clang diagnostic pop") #define MALLOC_ZONE(space, cast, size, type, flags) \ (space) = (cast)_MALLOC_ZONE(size, type, flags) #define FREE_ZONE(addr, size, type) \ _Pragma("clang diagnostic push") \ _Pragma("clang diagnostic ignored \"-Wshadow\"") \ do { \ _Static_assert(sizeof (addr) == sizeof (void *) || sizeof (addr) == sizeof (mach_vm_address_t), "addr is not a pointer"); \ void *__tmp_addr = (void *)addr; \ size_t __tmp_size = size; \ int __tmp_type = type; \ addr = (typeof(addr)) NULL; \ _FREE_ZONE(__tmp_addr, __tmp_size, __tmp_type); \ } while (0) \ _Pragma("clang diagnostic pop") extern void *__MALLOC( size_t size, int type, int flags, vm_allocation_site_t *site) __attribute__((alloc_size(1))); extern void _FREE( void *addr, int type); extern void *__REALLOC( void *addr, size_t size, int type, int flags, vm_allocation_site_t *site) __attribute__((alloc_size(2))); extern void *__MALLOC_ZONE( size_t size, int type, int flags, vm_allocation_site_t *site); extern void _FREE_ZONE( void *elem, size_t size, int type); #else /* XNU_KERNEL_PRIVATE */ #define MALLOC(space, cast, size, type, flags) \ (space) = (cast)_MALLOC(size, type, flags) #define FREE(addr, type) \ _FREE((void *)addr, type) #define REALLOC(space, cast, addr, size, type, flags) \ (space) = (cast)_REALLOC(addr, size, type, flags) #define MALLOC_ZONE(space, cast, size, type, flags) \ (space) = (cast)_MALLOC_ZONE(size, type, flags) #define FREE_ZONE(addr, size, type) \ _FREE_ZONE((void *)addr, size, type) extern void *_MALLOC( size_t size, int type, int flags); extern void _FREE( void *addr, int type); extern void *_REALLOC( void *addr, size_t size, int type, int flags); extern void *_MALLOC_ZONE( size_t size, int type, int flags); extern void _FREE_ZONE( void *elem, size_t size, int type); #endif /* !XNU_KERNEL_PRIVATE */ #endif /* KERNEL */ #endif /* _SYS_MALLOC_H_ */