malloc.h
1 /* 2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */ 29 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */ 30 /* 31 * Copyright (c) 1987, 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)malloc.h 8.5 (Berkeley) 5/3/95 63 */ 64 /* 65 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce 66 * support for mandatory and extensible security protections. This notice 67 * is included in support of clause 2.2 (b) of the Apple Public License, 68 * Version 2.0. 69 */ 70 71 #ifndef _SYS_MALLOC_H_ 72 #define _SYS_MALLOC_H_ 73 74 #include <sys/appleapiopts.h> 75 76 77 #ifdef KERNEL 78 /* 79 * flags to malloc 80 */ 81 #define M_WAITOK 0x0000 82 #define M_NOWAIT 0x0001 83 #define M_ZERO 0x0004 /* bzero the allocation */ 84 #define M_NULL 0x0008 /* return NULL if space is unavailable*/ 85 86 #ifdef XNU_KERNEL_PRIVATE 87 88 #include <mach/vm_types.h> 89 #include <kern/kalloc.h> 90 91 ZONE_VIEW_DECLARE(ZV_NAMEI); 92 93 /* 94 * Types of memory to be allocated (not all are used by us) 95 */ 96 #define M_DEVBUF 2 /* device driver memory */ 97 #define M_PCB 4 /* protocol control block */ 98 #define M_RTABLE 5 /* routing tables */ 99 #define M_IFADDR 9 /* interface address */ 100 #define M_SONAME 11 /* socket name */ 101 #define M_PGRP 17 /* process group header */ 102 #define M_FHANDLE 21 /* network file handle */ 103 #define M_NFSNODE 24 /* NFS vnode private part */ 104 #define M_VNODE 25 /* Dynamically allocated vnodes */ 105 #define M_CACHE 26 /* Dynamically allocated cache entries */ 106 #define M_DQUOT 27 /* UFS quota entries */ 107 #define M_PROC_UUID_POLICY 28 /* proc UUID policy entries */ 108 #define M_SHM 29 /* SVID compatible shared memory segments */ 109 #define M_LOCKF 40 /* Byte-range locking structures */ 110 #define M_PROC 41 /* Proc structures */ 111 #define M_NETADDR 49 /* Export host address structure */ 112 #define M_NFSSVC 50 /* NFS server structure */ 113 #define M_NFSD 52 /* NFS server daemon structure */ 114 #define M_IPMOPTS 53 /* internet multicast options */ 115 #define M_IFMADDR 55 /* link-level multicast address */ 116 #define M_NFSBIO 58 /* NFS client I/O buffers */ 117 #define M_NFSBIGFH 61 /* NFS version 3 file handle */ 118 #define M_TTYS 65 /* allocated tty structures */ 119 #define M_OFILETABL 73 /* Open file descriptor table */ 120 #define M_TEMP 80 /* misc temporary data buffers */ 121 #define M_SECA 81 /* security associations, key management */ 122 #define M_DEVFS 82 123 #define M_UDFNODE 84 /* UDF inodes */ 124 #define M_UDFMNT 85 /* UDF mount structures */ 125 #define M_IP6OPT 87 /* IPv6 options management */ 126 #define M_KQUEUE 94 /* kqueue system */ 127 #define M_KAUTH 100 /* kauth subsystem */ 128 #define M_DUMMYNET 101 /* dummynet */ 129 #define M_MACTEMP 104 /* MAC framework */ 130 #define M_SBUF 105 /* string buffers */ 131 #define M_SELECT 107 /* per-thread select memory */ 132 #define M_INMFILTER 110 /* IPv4 multicast PCB-layer source filter */ 133 #define M_IN6MFILTER 112 /* IPv6 multicast PCB-layer source filter */ 134 #define M_IP6MOPTS 113 /* IPv6 multicast options */ 135 #define M_IP6CGA 117 136 #define M_NECP 118 /* General NECP policy data */ 137 #define M_FD_VN_DATA 122 /* Per fd vnode data */ 138 #define M_FD_DIRBUF 123 /* Directory entries' buffer */ 139 #define M_NETAGENT 124 /* Network Agents */ 140 #define M_EVENTHANDLER 125 /* Eventhandler */ 141 #define M_LLTABLE 126 /* Link layer table */ 142 #define M_NWKWQ 127 /* Network work queue */ 143 #define M_CFIL 128 /* Content Filter */ 144 145 #define M_LAST 129 /* Must be last type + 1 */ 146 147 /* 148 * If you need accounting consider using 149 * KALLOC_HEAP_DEFINE to define a view. 150 */ 151 #define KM_SHM KHEAP_DEFAULT 152 153 #define MALLOC(space, cast, size, type, flags) \ 154 ({ VM_ALLOC_SITE_STATIC(0, 0); \ 155 (space) = (cast)__MALLOC(size, type, flags, &site); }) 156 157 #define REALLOC(space, cast, addr, size, type, flags) \ 158 ({ VM_ALLOC_SITE_STATIC(0, 0); \ 159 (space) = (cast)__REALLOC(addr, size, type, flags, &site); }) 160 161 #define _MALLOC(size, type, flags) \ 162 ({ VM_ALLOC_SITE_STATIC(0, 0); \ 163 __MALLOC(size, type, flags, &site); }) 164 165 #define _REALLOC(addr, size, type, flags) \ 166 ({ VM_ALLOC_SITE_STATIC(0, 0); \ 167 __REALLOC(addr, size, type, flags, &site); }) 168 169 #define _FREE(addr, type) \ 170 (kheap_free_addr)(KHEAP_DEFAULT, addr) 171 172 #define FREE(addr, type) \ 173 kheap_free_addr(KHEAP_DEFAULT, addr) 174 175 #pragma GCC visibility push(hidden) 176 177 extern void *__MALLOC( 178 size_t size, 179 int type, 180 int flags, 181 vm_allocation_site_t *site) __attribute__((alloc_size(1))); 182 183 extern void *__REALLOC( 184 void *addr, 185 size_t size, 186 int type, 187 int flags, 188 vm_allocation_site_t *site) __attribute__((alloc_size(2))); 189 190 #pragma GCC visibility pop 191 #else /* XNU_KERNEL_PRIVATE */ 192 193 #define M_PCB 4 /* protocol control block (smb) */ 194 #define M_RTABLE 5 /* routing tables */ 195 #define M_IFADDR 9 /* interface address (IOFireWireIP)*/ 196 #define M_SONAME 11 /* socket name (smb) */ 197 #define M_LOCKF 40 /* Byte-range locking structures (msdos) */ 198 #define M_TEMP 80 /* misc temporary data buffers */ 199 #define M_UDFNODE 84 /* UDF inodes (udf)*/ 200 #define M_UDFMNT 85 /* UDF mount structures (udf)*/ 201 #define M_KAUTH 100 /* kauth subsystem (smb) */ 202 203 #define MALLOC(space, cast, size, type, flags) \ 204 (space) = (cast)_MALLOC(size, type, flags) 205 206 #define FREE(addr, type) \ 207 _FREE((void *)addr, type) 208 209 #define MALLOC_ZONE(space, cast, size, type, flags) \ 210 (space) = (cast)_MALLOC_ZONE(size, type, flags) 211 212 #define FREE_ZONE(addr, size, type) \ 213 _FREE_ZONE((void *)addr, size, type) 214 215 extern void *_MALLOC( 216 size_t size, 217 int type, 218 int flags); 219 220 extern void _FREE( 221 void *addr, 222 int type); 223 224 extern void *_MALLOC_ZONE( 225 size_t size, 226 int type, 227 int flags); 228 229 extern void _FREE_ZONE( 230 void *elem, 231 size_t size, 232 int type); 233 234 #endif /* !XNU_KERNEL_PRIVATE */ 235 236 #endif /* KERNEL */ 237 238 #endif /* _SYS_MALLOC_H_ */