File: [local] / sys / sys / malloc.h (download)
Revision 1.1, Tue Mar 4 16:16:12 2008 UTC (16 years, 1 month ago) by nbrk
Branch point for: MAIN
Initial revision
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/* $OpenBSD: malloc.h,v 1.85 2007/06/17 20:06:10 jasper Exp $ */
/* $NetBSD: malloc.h,v 1.39 1998/07/12 19:52:01 augustss Exp $ */
/*
* 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. 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
*/
#ifndef _SYS_MALLOC_H_
#define _SYS_MALLOC_H_
#define KERN_MALLOC_BUCKETS 1
#define KERN_MALLOC_BUCKET 2
#define KERN_MALLOC_KMEMNAMES 3
#define KERN_MALLOC_KMEMSTATS 4
#define KERN_MALLOC_MAXID 5
#define CTL_KERN_MALLOC_NAMES { \
{ 0, 0 }, \
{ "buckets", CTLTYPE_STRING }, \
{ "bucket", CTLTYPE_NODE }, \
{ "kmemnames", CTLTYPE_STRING }, \
{ "kmemstat", CTLTYPE_NODE }, \
}
/*
* flags to malloc
*/
#define M_WAITOK 0x0000
#define M_NOWAIT 0x0001
#define M_CANFAIL 0x0002
/*
* Types of memory to be allocated
*/
#define M_FREE 0 /* should be on free list */
#define M_MBUF 1 /* mbuf */
#define M_DEVBUF 2 /* device driver memory */
#define M_DEBUG 3 /* debug chunk */
#define M_PCB 4 /* protocol control block */
#define M_RTABLE 5 /* routing tables */
/* 6 - free */
#define M_FTABLE 7 /* fragment reassembly header */
/* 8 - free */
#define M_IFADDR 9 /* interface address */
#define M_SOOPTS 10 /* socket options */
#define M_SYSCTL 11 /* sysctl buffers (persistent storage) */
/* 12 - free */
/* 13 - free */
#define M_IOCTLOPS 14 /* ioctl data buffer */
/* 15-18 - free */
#define M_IOV 19 /* large iov's */
#define M_MOUNT 20 /* vfs mount struct */
/* 21 - free */
#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_UFSMNT 28 /* UFS mount structure */
#define M_SHM 29 /* SVID compatible shared memory segments */
#define M_VMMAP 30 /* VM map structures */
#define M_SEM 31 /* SVID compatible semaphores */
#define M_DIRHASH 32 /* UFS dirhash */
/* 33 - free */
#define M_VMPMAP 34 /* VM pmap */
/* 35-37 - free */
#define M_FILE 38 /* Open file structure */
#define M_FILEDESC 39 /* Open file descriptor table */
/* 40 - free */
#define M_PROC 41 /* Proc structures */
#define M_SUBPROC 42 /* Proc sub-structures */
#define M_VCLUSTER 43 /* Cluster for VFS */
/* 45-46 - free */
#define M_MFSNODE 46 /* MFS vnode private part */
/* 47-48 - free */
#define M_NETADDR 49 /* Export host address structure */
#define M_NFSSVC 50 /* Nfs server structure */
#define M_NFSUID 51 /* 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_MSDOSFSMNT 59 /* MSDOS FS mount structure */
#define M_MSDOSFSFAT 60 /* MSDOS FS fat table */
#define M_MSDOSFSNODE 61 /* MSDOS FS vnode private part */
#define M_TTYS 62 /* allocated tty structures */
#define M_EXEC 63 /* argument lists & other mem used by exec */
#define M_MISCFSMNT 64 /* miscfs mount structures */
/* 65-73 - free */
#define M_PFKEY 74 /* pfkey data */
#define M_TDB 75 /* Transforms database */
#define M_XDATA 76 /* IPsec data */
/* 77 - free */
#define M_PAGEDEP 78 /* File page dependencies */
#define M_INODEDEP 79 /* Inode dependencies */
#define M_NEWBLK 80 /* New block allocation */
/* 81-82 - free */
#define M_INDIRDEP 83 /* Indirect block dependencies */
/* 84-91 - free */
#define M_VMSWAP 92 /* VM swap structures */
/* 93-96 - free */
#define M_RAIDFRAME 97 /* RAIDframe data */
#define M_UVMAMAP 98 /* UVM amap and related */
#define M_UVMAOBJ 99 /* UVM aobj and related */
/* 100 - free */
#define M_USB 101 /* USB general */
#define M_USBDEV 102 /* USB device driver */
#define M_USBHC 103 /* USB host controller */
/* 104 - free */
#define M_MEMDESC 105 /* Memory range */
/* 106-107 - free */
#define M_CRYPTO_DATA 108 /* Crypto framework data buffers (keys etc.) */
/* 109 - free */
#define M_CREDENTIALS 110 /* IPsec-related credentials and ID info */
#define M_PACKET_TAGS 111 /* Packet-attached information */
#define M_1394CTL 112 /* IEEE 1394 control structures */
#define M_1394DATA 113 /* IEEE 1394 data buffers */
#define M_EMULDATA 114 /* Per-process emulation data */
/* 115-122 - free */
/* KAME IPv6 */
#define M_IP6OPT 123 /* IPv6 options */
#define M_IP6NDP 124 /* IPv6 Neighbour Discovery */
#define M_IP6RR 125 /* IPv6 Router Renumbering Prefix */
#define M_RR_ADDR 126 /* IPv6 Router Renumbering Ifid */
#define M_TEMP 127 /* misc temporary data buffers */
#define M_NTFSMNT 128 /* NTFS mount structure */
#define M_NTFSNTNODE 129 /* NTFS ntnode information */
#define M_NTFSFNODE 130 /* NTFS fnode information */
#define M_NTFSDIR 131 /* NTFS dir buffer */
#define M_NTFSNTHASH 132 /* NTFS ntnode hash tables */
#define M_NTFSNTVATTR 133 /* NTFS file attribute information */
#define M_NTFSRDATA 134 /* NTFS resident data */
#define M_NTFSDECOMP 135 /* NTFS decompression temporary */
#define M_NTFSRUN 136 /* NTFS vrun storage */
#define M_KEVENT 137 /* kqueue related */
#define M_BLUETOOTH 138 /* Bluetooth */
#define M_BWMETER 139 /* Multicast upcall bw meters */
#define M_UDFMOUNT 140 /* UDF mount */
#define M_UDFFENTRY 141 /* UDF file entry */
#define M_UDFFID 142 /* UDF file id */
#define M_LAST 143 /* Must be last type + 1 */
#define INITKMEMNAMES { \
"free", /* 0 M_FREE */ \
"mbuf", /* 1 M_MBUF */ \
"devbuf", /* 2 M_DEVBUF */ \
"debug", /* 3 M_DEBUG */ \
"pcb", /* 4 M_PCB */ \
"routetbl", /* 5 M_RTABLE */ \
NULL, /* 6 */ \
"fragtbl", /* 7 M_FTABLE */ \
NULL, \
"ifaddr", /* 9 M_IFADDR */ \
"soopts", /* 10 M_SOOPTS */ \
"sysctl", /* 11 M_SYSCTL */ \
NULL, \
NULL, \
"ioctlops", /* 14 M_IOCTLOPS */ \
NULL, \
NULL, \
NULL, \
NULL, \
"iov", /* 19 M_IOV */ \
"mount", /* 20 M_MOUNT */ \
NULL, \
"NFS req", /* 22 M_NFSREQ */ \
"NFS mount", /* 23 M_NFSMNT */ \
"NFS node", /* 24 M_NFSNODE */ \
"vnodes", /* 25 M_VNODE */ \
"namecache", /* 26 M_CACHE */ \
"UFS quota", /* 27 M_DQUOT */ \
"UFS mount", /* 28 M_UFSMNT */ \
"shm", /* 29 M_SHM */ \
"VM map", /* 30 M_VMMAP */ \
"sem", /* 31 M_SEM */ \
"dirhash", /* 32 M_DIRHASH */ \
NULL, \
"VM pmap", /* 34 M_VMPMAP */ \
NULL, /* 35 */ \
NULL, /* 36 */ \
NULL, /* 37 */ \
"file", /* 38 M_FILE */ \
"file desc", /* 39 M_FILEDESC */ \
NULL, /* 40 */ \
"proc", /* 41 M_PROC */ \
"subproc", /* 42 M_SUBPROC */ \
"VFS cluster", /* 43 M_VCLUSTER */ \
NULL, \
NULL, \
"MFS node", /* 46 M_MFSNODE */ \
NULL, \
NULL, \
"Export Host", /* 49 M_NETADDR */ \
"NFS srvsock", /* 50 M_NFSSVC */ \
"NFS uid", /* 51 M_NFSUID */ \
"NFS daemon", /* 52 M_NFSD */ \
"ip_moptions", /* 53 M_IPMOPTS */ \
"in_multi", /* 54 M_IPMADDR */ \
"ether_multi", /* 55 M_IFMADDR */ \
"mrt", /* 56 M_MRTABLE */ \
"ISOFS mount", /* 57 M_ISOFSMNT */ \
"ISOFS node", /* 58 M_ISOFSNODE */ \
"MSDOSFS mount", /* 59 M_MSDOSFSMNT */ \
"MSDOSFS fat", /* 60 M_MSDOSFSFAT */ \
"MSDOSFS node", /* 61 M_MSDOSFSNODE */ \
"ttys", /* 62 M_TTYS */ \
"exec", /* 63 M_EXEC */ \
"miscfs mount", /* 64 M_MISCFSMNT */ \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
"pfkey data", /* 74 M_PFKEY */ \
"tdb", /* 75 M_TDB */ \
"xform_data", /* 76 M_XDATA */ \
NULL, \
"pagedep", /* 78 M_PAGEDEP */ \
"inodedep", /* 79 M_INODEDEP */ \
"newblk", /* 80 M_NEWBLK */ \
NULL, \
NULL, \
"indirdep", /* 83 M_INDIRDEP */ \
NULL, NULL, NULL, NULL, \
NULL, NULL, NULL, NULL, \
"VM swap", /* 92 M_VMSWAP */ \
NULL, NULL, NULL, NULL, \
"RAIDframe data", /* 97 M_RAIDFRAME */ \
"UVM amap", /* 98 M_UVMAMAP */ \
"UVM aobj", /* 99 M_UVMAOBJ */ \
NULL, \
"USB", /* 101 M_USB */ \
"USB device", /* 102 M_USBDEV */ \
"USB HC", /* 103 M_USBHC */ \
NULL, \
"memdesc", /* 105 M_MEMDESC */ \
NULL, /* 106 */ \
NULL, \
"crypto data", /* 108 M_CRYPTO_DATA */ \
NULL, \
"IPsec creds", /* 110 M_CREDENTIALS */ \
"packet tags", /* 111 M_PACKET_TAGS */ \
"1394ctl", /* 112 M_1394CTL */ \
"1394data", /* 113 M_1394DATA */ \
"emuldata", /* 114 M_EMULDATA */ \
NULL, NULL, NULL, NULL, \
NULL, NULL, NULL, NULL, \
"ip6_options", /* 123 M_IP6OPT */ \
"NDP", /* 124 M_IP6NDP */ \
"ip6rr", /* 125 M_IP6RR */ \
"rp_addr", /* 126 M_RR_ADDR */ \
"temp", /* 127 M_TEMP */ \
"NTFS mount", /* 128 M_NTFSMNT */ \
"NTFS node", /* 129 M_NTFSNTNODE */ \
"NTFS fnode", /* 130 M_NTFSFNODE */ \
"NTFS dir", /* 131 M_NTFSDIR */ \
"NTFS hash tables", /* 132 M_NTFSNTHASH */ \
"NTFS file attr", /* 133 M_NTFSNTVATTR */ \
"NTFS resident data ", /* 134 M_NTFSRDATA */ \
"NTFS decomp", /* 135 M_NTFSDECOMP */ \
"NTFS vrun", /* 136 M_NTFSRUN */ \
"kqueue", /* 137 M_KEVENT */ \
"bluetooth", /* 138 M_BLUETOOTH */ \
"bwmeter", /* 139 M_BWMETER */ \
"UDF mount", /* 140 M_UDFMOUNT */ \
"UDF file entry", /* 141 M_UDFFENTRY */ \
"UDF file id", /* 142 M_UDFFID */ \
}
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;
};
/*
* Array of descriptors that describe the contents of each page
*/
struct kmemusage {
short ku_indx; /* bucket index */
union {
u_short freecnt;/* for small allocations, free pieces in page */
u_short pagecnt;/* for large allocations, pages alloced */
} ku_un;
};
#define ku_freecnt ku_un.freecnt
#define ku_pagecnt ku_un.pagecnt
/*
* Set of buckets for each size of memory block that is retained
*/
struct kmembuckets {
caddr_t kb_next; /* list of free blocks */
caddr_t kb_last; /* last free block */
u_int64_t kb_calls; /* total calls to allocate this size */
u_int64_t kb_total; /* total number of blocks allocated */
u_int64_t kb_totalfree; /* # of free elements in this bucket */
u_int64_t kb_elmpercl; /* # of elements in this sized allocation */
u_int64_t kb_highwat; /* high water mark */
u_int64_t kb_couldfree; /* over high water mark and could free */
};
#ifdef _KERNEL
#define MINALLOCSIZE (1 << MINBUCKET)
#define BUCKETINDX(size) \
((size) <= (MINALLOCSIZE * 128) \
? (size) <= (MINALLOCSIZE * 8) \
? (size) <= (MINALLOCSIZE * 2) \
? (size) <= (MINALLOCSIZE * 1) \
? (MINBUCKET + 0) \
: (MINBUCKET + 1) \
: (size) <= (MINALLOCSIZE * 4) \
? (MINBUCKET + 2) \
: (MINBUCKET + 3) \
: (size) <= (MINALLOCSIZE* 32) \
? (size) <= (MINALLOCSIZE * 16) \
? (MINBUCKET + 4) \
: (MINBUCKET + 5) \
: (size) <= (MINALLOCSIZE * 64) \
? (MINBUCKET + 6) \
: (MINBUCKET + 7) \
: (size) <= (MINALLOCSIZE * 2048) \
? (size) <= (MINALLOCSIZE * 512) \
? (size) <= (MINALLOCSIZE * 256) \
? (MINBUCKET + 8) \
: (MINBUCKET + 9) \
: (size) <= (MINALLOCSIZE * 1024) \
? (MINBUCKET + 10) \
: (MINBUCKET + 11) \
: (size) <= (MINALLOCSIZE * 8192) \
? (size) <= (MINALLOCSIZE * 4096) \
? (MINBUCKET + 12) \
: (MINBUCKET + 13) \
: (size) <= (MINALLOCSIZE * 16384) \
? (MINBUCKET + 14) \
: (MINBUCKET + 15))
/*
* Turn virtual addresses into kmem map indices
*/
#define kmemxtob(alloc) (kmembase + (alloc) * NBPG)
#define btokmemx(addr) (((caddr_t)(addr) - kmembase) / NBPG)
#define btokup(addr) (&kmemusage[((caddr_t)(addr) - kmembase) >> PAGE_SHIFT])
/*
* Macro versions for the usual cases of malloc/free
*/
#if defined(KMEMSTATS) || defined(DIAGNOSTIC) || defined(_LKM) || defined(SMALL_KERNEL)
#define MALLOC(space, cast, size, type, flags) \
(space) = (cast)malloc((u_long)(size), type, flags)
#define FREE(addr, type) free((caddr_t)(addr), type)
#else /* do not collect statistics */
#define MALLOC(space, cast, size, type, flags) do { \
u_long kbp_size = (u_long)(size); \
struct kmembuckets *kbp = &bucket[BUCKETINDX(kbp_size)]; \
int __s = splvm(); \
if (kbp->kb_next == NULL) { \
(space) = (cast)malloc(kbp_size, type, flags); \
} else { \
(space) = (cast)kbp->kb_next; \
kbp->kb_next = *(caddr_t *)(space); \
} \
splx(__s); \
} while (0)
#define FREE(addr, type) do { \
struct kmembuckets *kbp; \
struct kmemusage *kup = btokup(addr); \
int __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(0)
#endif /* do not collect statistics */
extern struct kmemstats kmemstats[];
extern struct kmemusage *kmemusage;
extern char *kmembase;
extern struct kmembuckets bucket[];
extern void *malloc(unsigned long size, int type, int flags);
extern void free(void *addr, int type);
extern int sysctl_malloc(int *, u_int, void *, size_t *, void *, size_t,
struct proc *);
size_t malloc_roundup(size_t);
void malloc_printit(int (*)(const char *, ...));
#ifdef MALLOC_DEBUG
int debug_malloc(unsigned long, int, int, void **);
int debug_free(void *, int);
void debug_malloc_init(void);
void debug_malloc_assert_allocated(void *, const char *);
#define DEBUG_MALLOC_ASSERT_ALLOCATED(addr) \
debug_malloc_assert_allocated(addr, __func__)
void debug_malloc_print(void);
void debug_malloc_printit(int (*)(const char *, ...), vaddr_t);
#endif /* MALLOC_DEBUG */
#endif /* _KERNEL */
#endif /* !_SYS_MALLOC_H_ */
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