446 lines
17 KiB
C
446 lines
17 KiB
C
/* $NetBSD: malloc.h,v 1.63 2001/06/16 12:00:03 jdolecek Exp $ */
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/*
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* Copyright (c) 1987, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)malloc.h 8.5 (Berkeley) 5/3/95
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*/
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#ifndef _SYS_MALLOC_H_
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#define _SYS_MALLOC_H_
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#if defined(_KERNEL_OPT)
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#include "opt_kmemstats.h"
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#include "opt_malloclog.h"
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#include "opt_lockdebug.h"
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#endif
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/*
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* flags to malloc
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*/
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#define M_WAITOK 0x0000
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#define M_NOWAIT 0x0001
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/*
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* Types of memory to be allocated
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*/
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#define M_FREE 0 /* should be on free list */
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#define M_MBUF 1 /* mbuf */
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#define M_DEVBUF 2 /* device driver memory */
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#define M_SOCKET 3 /* socket structure */
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#define M_PCB 4 /* protocol control block */
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#define M_RTABLE 5 /* routing tables */
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#define M_HTABLE 6 /* IMP host tables */
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#define M_FTABLE 7 /* fragment reassembly header */
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#define M_ZOMBIE 8 /* zombie proc status */
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#define M_IFADDR 9 /* interface address */
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#define M_SOOPTS 10 /* socket options */
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#define M_SONAME 11 /* socket name */
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#define M_NAMEI 12 /* namei path name buffer */
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#define M_GPROF 13 /* kernel profiling buffer */
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#define M_IOCTLOPS 14 /* ioctl data buffer */
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#define M_MAPMEM 15 /* mapped memory descriptors */
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#define M_CRED 16 /* credentials */
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#define M_PGRP 17 /* process group header */
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#define M_SESSION 18 /* session header */
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#define M_IOV 19 /* large iov's */
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#define M_MOUNT 20 /* vfs mount struct */
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#define M_FHANDLE 21 /* network file handle */
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#define M_NFSREQ 22 /* NFS request header */
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#define M_NFSMNT 23 /* NFS mount structure */
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#define M_NFSNODE 24 /* NFS vnode private part */
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#define M_VNODE 25 /* Dynamically allocated vnodes */
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#define M_CACHE 26 /* Dynamically allocated cache entries */
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#define M_DQUOT 27 /* UFS quota entries */
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#define M_UFSMNT 28 /* UFS mount structure */
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#define M_SHM 29 /* SVID compatible shared memory segments */
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#define M_VMMAP 30 /* VM map structures */
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#define M_VMMAPENT 31 /* VM map entry structures */
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#define M_VMOBJ 32 /* VM object structure */
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#define M_VMOBJHASH 33 /* VM object hash structure */
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#define M_VMPMAP 34 /* VM pmap */
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#define M_VMPVENT 35 /* VM phys-virt mapping entry */
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#define M_VMPAGER 36 /* XXX: VM pager struct */
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#define M_VMPGDATA 37 /* XXX: VM pager private data */
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#define M_FILE 38 /* Open file structure */
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#define M_FILEDESC 39 /* Open file descriptor table */
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#define M_LOCKF 40 /* Byte-range locking structures */
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#define M_PROC 41 /* Proc structures */
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#define M_SUBPROC 42 /* Proc sub-structures */
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#define M_SEGMENT 43 /* Segment for LFS */
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#define M_LFSNODE 44 /* LFS vnode private part */
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#define M_FFSNODE 45 /* FFS vnode private part */
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#define M_MFSNODE 46 /* MFS vnode private part */
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#define M_NQLEASE 47 /* Nqnfs lease */
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#define M_NQMHOST 48 /* Nqnfs host address table */
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#define M_NETADDR 49 /* Export host address structure */
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#define M_NFSSVC 50 /* Nfs server structure */
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#define M_NFSUID 51 /* Nfs uid mapping structure */
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#define M_NFSD 52 /* Nfs server daemon structure */
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#define M_IPMOPTS 53 /* internet multicast options */
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#define M_IPMADDR 54 /* internet multicast address */
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#define M_IFMADDR 55 /* link-level multicast address */
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#define M_MRTABLE 56 /* multicast routing tables */
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#define M_ISOFSMNT 57 /* ISOFS mount structure */
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#define M_ISOFSNODE 58 /* ISOFS vnode private part */
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#define M_MSDOSFSMNT 59 /* MSDOS FS mount structure */
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#define M_MSDOSFSFAT 60 /* MSDOS FS fat table */
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#define M_MSDOSFSNODE 61 /* MSDOS FS vnode private part */
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#define M_TTYS 62 /* allocated tty structures */
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#define M_EXEC 63 /* argument lists & other mem used by exec */
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#define M_MISCFSMNT 64 /* miscfs mount structures */
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#define M_MISCFSNODE 65 /* miscfs vnode private part */
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#define M_ADOSFSMNT 66 /* adosfs mount structures */
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#define M_ADOSFSNODE 67 /* adosfs vnode private part */
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#define M_ANODE 68 /* adosfs anode structures and tables */
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#define M_IPQ 69 /* IP packet queue entry */
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#define M_AFS 70 /* Andrew File System */
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#define M_ADOSFSBITMAP 71 /* adosfs bitmap */
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#define M_NFSRVDESC 72 /* NFS server descriptor */
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#define M_NFSDIROFF 73 /* NFS directory cookies */
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#define M_NFSBIGFH 74 /* NFS big filehandle */
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#define M_EXT2FSNODE 75 /* EXT2FS vnode private part */
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#define M_VMSWAP 76 /* VM swap structures */
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#define M_VMPAGE 77 /* VM page structures */
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#define M_VMPBUCKET 78 /* VM page buckets */
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/*
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* Why are 79-81 empty?
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*/
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#define M_UVMAMAP 82 /* UVM amap and related structs */
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#define M_UVMAOBJ 83 /* UVM aobj and related structs */
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#define M_TEMP 84 /* misc temporary data buffers */
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#define M_DMAMAP 85 /* bus_dma(9) structures */
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#define M_IPFLOW 86 /* IP flow entries */
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#define M_USB 87 /* USB general */
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#define M_USBDEV 88 /* USB device driver */
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#define M_POOL 89 /* memory pool structs */
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#define M_CODA 90 /* Coda file system structures and tables */
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#define M_FILECOREMNT 91 /* Filecore FS mount structures */
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#define M_FILECORENODE 92 /* Filecore FS vnode private part */
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#define M_RAIDFRAME 93 /* RAIDframe structures */
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#define M_USBHC 94 /* USB host controller */
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#define M_SECA 95 /* security associations, key management */
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#define M_IP6OPT 96 /* IPv6 options */
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#define M_IP6NDP 97 /* IPv6 Neighbour Discovery */
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#define M_NTFS 98 /* Windows NT file system structures */
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#define M_PAGEDEP 99 /* File page dependencies */
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#define M_INODEDEP 100 /* Inode dependencies */
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#define M_NEWBLK 101 /* New block allocation */
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#define M_BMSAFEMAP 102 /* Block or frag allocated from cyl group map */
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#define M_ALLOCDIRECT 103 /* Block or frag dependency for an inode */
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#define M_INDIRDEP 104 /* Indirect block dependencies */
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#define M_ALLOCINDIR 105 /* Block dependency for an indirect block */
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#define M_FREEFRAG 106 /* Previously used frag for an inode */
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#define M_FREEBLKS 107 /* Blocks freed from an inode */
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#define M_FREEFILE 108 /* Inode deallocated */
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#define M_DIRADD 109 /* New directory entry */
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#define M_MKDIR 110 /* New directory */
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#define M_DIRREM 111 /* Directory entry deleted */
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#define M_IP6RR 112 /* IPv6 Router Renumbering Prefix */
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#define M_RR_ADDR 113 /* IPv6 Router Renumbering Ifid */
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#define M_SOFTINTR 114 /* Softinterrupt structures */
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#define M_EMULDATA 115 /* Per-process emulation data */
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#define M_1394CTL 116 /* IEEE 1394 control structures */
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#define M_1394DATA 117 /* IEEE 1394 data buffers */
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#define M_PIPE 118 /* Pipe structures */
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#define M_LAST 119 /* Must be last type + 1 */
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#define INITKMEMNAMES { \
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"free", /* 0 M_FREE */ \
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"mbuf", /* 1 M_MBUF */ \
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"devbuf", /* 2 M_DEVBUF */ \
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"socket", /* 3 M_SOCKET */ \
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"pcb", /* 4 M_PCB */ \
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"routetbl", /* 5 M_RTABLE */ \
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"hosttbl", /* 6 M_HTABLE */ \
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"fragtbl", /* 7 M_FTABLE */ \
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"zombie", /* 8 M_ZOMBIE */ \
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"ifaddr", /* 9 M_IFADDR */ \
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"soopts", /* 10 M_SOOPTS */ \
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"soname", /* 11 M_SONAME */ \
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"namei", /* 12 M_NAMEI */ \
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"gprof", /* 13 M_GPROF */ \
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"ioctlops", /* 14 M_IOCTLOPS */ \
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"mapmem", /* 15 M_MAPMEM */ \
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"cred", /* 16 M_CRED */ \
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"pgrp", /* 17 M_PGRP */ \
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"session", /* 18 M_SESSION */ \
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"iov", /* 19 M_IOV */ \
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"mount", /* 20 M_MOUNT */ \
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"fhandle", /* 21 M_FHANDLE */ \
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"NFS req", /* 22 M_NFSREQ */ \
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"NFS mount", /* 23 M_NFSMNT */ \
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"NFS node", /* 24 M_NFSNODE */ \
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"vnodes", /* 25 M_VNODE */ \
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"namecache", /* 26 M_CACHE */ \
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"UFS quota", /* 27 M_DQUOT */ \
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"UFS mount", /* 28 M_UFSMNT */ \
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"shm", /* 29 M_SHM */ \
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"VM map", /* 30 M_VMMAP */ \
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"VM mapent", /* 31 M_VMMAPENT */ \
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"VM object", /* 32 M_VMOBJ */ \
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"VM objhash", /* 33 M_VMOBJHASH */ \
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"VM pmap", /* 34 M_VMPMAP */ \
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"VM pvmap", /* 35 M_VMPVENT */ \
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"VM pager", /* 36 M_VMPAGER */ \
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"VM pgdata", /* 37 M_VMPGDATA */ \
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"file", /* 38 M_FILE */ \
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"file desc", /* 39 M_FILEDESC */ \
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"lockf", /* 40 M_LOCKF */ \
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"proc", /* 41 M_PROC */ \
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"subproc", /* 42 M_SUBPROC */ \
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"LFS segment", /* 43 M_SEGMENT */ \
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"LFS node", /* 44 M_LFSNODE */ \
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"FFS node", /* 45 M_FFSNODE */ \
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"MFS node", /* 46 M_MFSNODE */ \
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"NQNFS Lease", /* 47 M_NQLEASE */ \
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"NQNFS Host", /* 48 M_NQMHOST */ \
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"Export Host", /* 49 M_NETADDR */ \
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"NFS srvsock", /* 50 M_NFSSVC */ \
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"NFS uid", /* 51 M_NFSUID */ \
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"NFS daemon", /* 52 M_NFSD */ \
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"ip_moptions", /* 53 M_IPMOPTS */ \
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"in_multi", /* 54 M_IPMADDR */ \
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"ether_multi", /* 55 M_IFMADDR */ \
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"mrt", /* 56 M_MRTABLE */ \
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"ISOFS mount", /* 57 M_ISOFSMNT */ \
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"ISOFS node", /* 58 M_ISOFSNODE */ \
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"MSDOSFS mount", /* 59 M_MSDOSFSMNT */ \
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"MSDOSFS fat", /* 60 M_MSDOSFSFAT */ \
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"MSDOSFS node", /* 61 M_MSDOSFSNODE */ \
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"ttys", /* 62 M_TTYS */ \
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"exec", /* 63 M_EXEC */ \
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"miscfs mount", /* 64 M_MISCFSMNT */ \
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"miscfs node", /* 65 M_MISCFSNODE */ \
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"adosfs mount", /* 66 M_ADOSFSMNT */ \
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"adosfs node", /* 67 M_ADOSFSNODE */ \
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"adosfs anode", /* 68 M_ANODE */ \
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"IP queue ent", /* 69 M_IPQ */ \
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"afs", /* 70 M_AFS */ \
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"adosfs bitmap", /* 71 M_ADOSFSBITMAP */ \
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"NFS srvdesc", /* 72 M_NFSRVDESC */ \
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"NFS diroff", /* 73 M_NFSDIROFF */ \
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"NFS bigfh", /* 74 M_NFSBIGFH */ \
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"EXT2FS node", /* 75 M_EXT2FSNODE */ \
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"VM swap", /* 76 M_VMSWAP */ \
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"VM page", /* 77 M_VMPAGE */ \
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"VM page bucket", /* 78 M_VMPBUCKET */ \
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NULL, /* 79 */ \
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NULL, /* 80 */ \
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NULL, /* 81 */ \
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"UVM amap", /* 82 M_UVMAMAP */ \
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"UVM aobj", /* 83 M_UVMAOBJ */ \
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"temp", /* 84 M_TEMP */ \
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"DMA map", /* 85 M_DMAMAP */ \
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"IP flow", /* 86 M_IPFLOW */ \
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"USB", /* 87 M_USB */ \
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"USB device", /* 88 M_USBDEV */ \
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"Pool", /* 89 M_POOL */ \
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"coda", /* 90 M_CODA */ \
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"filecore mount", /* 91 M_FILECOREMNT */ \
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"filecore node", /* 92 M_FILECORENODE */ \
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"RAIDframe", /* 93 M_RAIDFRAME */ \
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"USB HC", /* 94 M_USBHC */ \
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"key mgmt", /* 95 M_SECA */ \
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"ip6_options", /* 96 M_IP6OPT */ \
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"NDP", /* 97 M_IP6NDP */ \
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"NTFS", /* 98 M_NTFS */ \
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"pagedep", /* 99 M_PAGEDEP */ \
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"inodedep", /* 100 M_INODEDEP */ \
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"newblk", /* 101 M_NEWBLK */ \
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"bmsafemap", /* 102 M_BMSAFEMAP */ \
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"allocdirect", /* 103 M_ALLOCDIRECT */ \
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"indirdep", /* 104 M_INDIRDEP */ \
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"allocindir", /* 105 M_ALLOCINDIR */ \
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"freefrag", /* 106 M_FREEFRAG */ \
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"freeblks", /* 107 M_FREEBLKS */ \
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"freefile", /* 108 M_FREEFILE */ \
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"diradd", /* 109 M_DIRADD */ \
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"mkdir", /* 110 M_MKDIR */ \
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"dirrem", /* 111 M_DIRREM */ \
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"ip6rr", /* 112 M_IP6RR */ \
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"rp_addr", /* 113 M_RR_ADDR */ \
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"softintr", /* 114 M_SOFTINTR */ \
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"emuldata", /* 115 M_EMULDATA */ \
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"1394ctl", /* 116 M_1394CTL */ \
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"1394data", /* 117 M_1394DATA */ \
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"pipe", /* 118 M_PIPE */ \
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NULL, /* 119 */ \
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}
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struct kmemstats {
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long ks_inuse; /* # of packets of this type currently in use */
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long ks_calls; /* total packets of this type ever allocated */
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long ks_memuse; /* total memory held in bytes */
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u_short ks_limblocks; /* number of times blocked for hitting limit */
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u_short ks_mapblocks; /* number of times blocked for kernel map */
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long ks_maxused; /* maximum number ever used */
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long ks_limit; /* most that are allowed to exist */
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long ks_size; /* sizes of this thing that are allocated */
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long ks_spare;
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};
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/*
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* Array of descriptors that describe the contents of each page
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*/
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struct kmemusage {
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short ku_indx; /* bucket index */
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union {
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u_short freecnt;/* for small allocations, free pieces in page */
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u_short pagecnt;/* for large allocations, pages alloced */
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} ku_un;
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};
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#define ku_freecnt ku_un.freecnt
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#define ku_pagecnt ku_un.pagecnt
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/*
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* Set of buckets for each size of memory block that is retained
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*/
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struct kmembuckets {
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caddr_t kb_next; /* list of free blocks */
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caddr_t kb_last; /* last free block */
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long kb_calls; /* total calls to allocate this size */
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long kb_total; /* total number of blocks allocated */
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long kb_totalfree; /* # of free elements in this bucket */
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long kb_elmpercl; /* # of elements in this sized allocation */
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long kb_highwat; /* high water mark */
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long kb_couldfree; /* over high water mark and could free */
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};
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#ifdef _KERNEL
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#define MINALLOCSIZE (1 << MINBUCKET)
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#define BUCKETINDX(size) \
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((size) <= (MINALLOCSIZE * 128) \
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? (size) <= (MINALLOCSIZE * 8) \
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? (size) <= (MINALLOCSIZE * 2) \
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? (size) <= (MINALLOCSIZE * 1) \
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? (MINBUCKET + 0) \
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: (MINBUCKET + 1) \
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: (size) <= (MINALLOCSIZE * 4) \
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? (MINBUCKET + 2) \
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: (MINBUCKET + 3) \
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: (size) <= (MINALLOCSIZE* 32) \
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? (size) <= (MINALLOCSIZE * 16) \
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? (MINBUCKET + 4) \
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: (MINBUCKET + 5) \
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: (size) <= (MINALLOCSIZE * 64) \
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? (MINBUCKET + 6) \
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: (MINBUCKET + 7) \
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: (size) <= (MINALLOCSIZE * 2048) \
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? (size) <= (MINALLOCSIZE * 512) \
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? (size) <= (MINALLOCSIZE * 256) \
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? (MINBUCKET + 8) \
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: (MINBUCKET + 9) \
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: (size) <= (MINALLOCSIZE * 1024) \
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? (MINBUCKET + 10) \
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: (MINBUCKET + 11) \
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: (size) <= (MINALLOCSIZE * 8192) \
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? (size) <= (MINALLOCSIZE * 4096) \
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? (MINBUCKET + 12) \
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: (MINBUCKET + 13) \
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: (size) <= (MINALLOCSIZE * 16384) \
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? (MINBUCKET + 14) \
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: (MINBUCKET + 15))
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/*
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* Turn virtual addresses into kmem map indicies
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*/
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#define kmemxtob(alloc) (kmembase + (alloc) * NBPG)
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#define btokmemx(addr) (((caddr_t)(addr) - kmembase) / NBPG)
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#define btokup(addr) (&kmemusage[((caddr_t)(addr) - kmembase) >> PGSHIFT])
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/*
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* Macro versions for the usual cases of malloc/free
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*/
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#if defined(KMEMSTATS) || defined(DIAGNOSTIC) || defined(_LKM) || \
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defined(MALLOCLOG) || defined(LOCKDEBUG)
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#define MALLOC(space, cast, size, type, flags) \
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(space) = (cast)malloc((u_long)(size), (type), (flags))
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#define FREE(addr, type) free((caddr_t)(addr), (type))
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#else /* do not collect statistics */
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#define MALLOC(space, cast, size, type, flags) \
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do { \
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register struct kmembuckets *kbp = &bucket[BUCKETINDX((size))]; \
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long s = splvm(); \
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if (kbp->kb_next == NULL) { \
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(space) = (cast)malloc((u_long)(size), (type), (flags)); \
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} else { \
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(space) = (cast)kbp->kb_next; \
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kbp->kb_next = *(caddr_t *)(space); \
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} \
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splx(s); \
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} while (/* CONSTCOND */ 0)
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#define FREE(addr, type) \
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do { \
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register struct kmembuckets *kbp; \
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register struct kmemusage *kup = btokup((addr)); \
|
|
long s = splvm(); \
|
|
if (1 << kup->ku_indx > MAXALLOCSAVE) { \
|
|
free((caddr_t)(addr), (type)); \
|
|
} else { \
|
|
kbp = &bucket[kup->ku_indx]; \
|
|
if (kbp->kb_next == NULL) \
|
|
kbp->kb_next = (caddr_t)(addr); \
|
|
else \
|
|
*(caddr_t *)(kbp->kb_last) = (caddr_t)(addr); \
|
|
*(caddr_t *)(addr) = NULL; \
|
|
kbp->kb_last = (caddr_t)(addr); \
|
|
} \
|
|
splx(s); \
|
|
} while(/* CONSTCOND */ 0)
|
|
#endif /* do not collect statistics */
|
|
|
|
extern struct kmemstats kmemstats[];
|
|
extern struct kmemusage *kmemusage;
|
|
extern char *kmembase;
|
|
extern struct kmembuckets bucket[];
|
|
|
|
#ifdef MALLOCLOG
|
|
extern void *_malloc(unsigned long size, int type, int flags,
|
|
const char *file, long line);
|
|
extern void _free(void *addr, int type, const char *file, long line);
|
|
#define malloc(size, type, flags) \
|
|
_malloc((size), (type), (flags), __FILE__, __LINE__)
|
|
#define free(addr, type) \
|
|
_free((addr), (type), __FILE__, __LINE__)
|
|
#else
|
|
extern void *malloc(unsigned long size, int type, int flags);
|
|
extern void free(void *addr, int type);
|
|
#endif /* MALLOCLOG */
|
|
|
|
extern void *realloc(void *curaddr, unsigned long newsize, int type,
|
|
int flags);
|
|
#endif /* _KERNEL */
|
|
#endif /* !_SYS_MALLOC_H_ */
|