1/*
2 * Copyright (c) 2000-2002 Apple Computer, 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) 1995 NeXT Computer, Inc. All Rights Reserved */
29/*-
30 * Copyright (c) 1982, 1986, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Berkeley and its contributors.
45 * 4. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)trace.h 8.1 (Berkeley) 6/2/93
62 */
63
64#ifndef _SYS_TRACE_H_
65#define _SYS_TRACE_H_
66
67#include <sys/appleapiopts.h>
68
69#ifdef __APPLE_API_OBSOLETE
70/*
71 * File system buffer tracing points; all trace <pack(dev, size), bn>
72 */
73#define TR_BREADHIT 0 /* buffer read found in cache */
74#define TR_BREADMISS 1 /* buffer read not in cache */
75#define TR_BWRITE 2 /* buffer written */
76#define TR_BREADHITRA 3 /* buffer read-ahead found in cache */
77#define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */
78#define TR_XFODMISS 5 /* exe fod read */
79#define TR_XFODHIT 6 /* exe fod read */
80#define TR_BRELSE 7 /* brelse */
81#define TR_BREALLOC 8 /* expand/contract a buffer */
82
83/*
84 * Memory allocator trace points; all trace the amount of memory involved
85 */
86#define TR_MALL 10 /* memory allocated */
87
88/*
89 * Paging trace points: all are <vaddr, pid>
90 */
91#define TR_INTRANS 20 /* page intransit block */
92#define TR_EINTRANS 21 /* page intransit wait done */
93#define TR_FRECLAIM 22 /* reclaim from free list */
94#define TR_RECLAIM 23 /* reclaim from loop */
95#define TR_XSFREC 24 /* reclaim from free list instead of drum */
96#define TR_XIFREC 25 /* reclaim from free list instead of fsys */
97#define TR_WAITMEM 26 /* wait for memory in pagein */
98#define TR_EWAITMEM 27 /* end memory wait in pagein */
99#define TR_ZFOD 28 /* zfod page fault */
100#define TR_EXFOD 29 /* exec fod page fault */
101#define TR_VRFOD 30 /* vread fod page fault */
102#define TR_CACHEFOD 31 /* fod in file system cache */
103#define TR_SWAPIN 32 /* drum page fault */
104#define TR_PGINDONE 33 /* page in done */
105#define TR_SWAPIO 34 /* swap i/o request arrives */
106
107/*
108 * System call trace points.
109 */
110#define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */
111
112/*
113 * Miscellaneous
114 */
115#define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */
116
117/*
118 * This defines the size of the trace flags array.
119 */
120#define TR_NFLAGS 100 /* generous */
121
122#define TRCSIZ 4096
123
124/*
125 * Specifications of the vtrace() system call, which takes one argument.
126 */
127#define VTRACE 64+51
128
129#define VTR_DISABLE 0 /* set a trace flag to 0 */
130#define VTR_ENABLE 1 /* set a trace flag to 1 */
131#define VTR_VALUE 2 /* return value of a trace flag */
132#define VTR_UALARM 3 /* set alarm to go off (sig 16) */
133 /* in specified number of hz */
134#define VTR_STAMP 4 /* user specified stamp */
135
136#ifdef KERNEL
137#if TRACE
138extern struct proc *traceproc;
139extern int tracewhich, tracebuf[TRCSIZ];
140extern u_int tracex;
141extern char traceflags[TR_NFLAGS];
142#define pack(v,b) (((v)->v_mount->mnt_vfsstat.f_fsid.val[0])<<16)|(b)
143#define trace(a,b,c) { \
144 if (traceflags[a]) \
145 trace1(a,b,c); \
146}
147#else
148#define trace(a,b,c)
149#endif
150#endif /* KERNEL */
151
152#endif /* __APPLE_API_OBSOLETE */
153
154#endif /* !_SYS_TRACE_H_ */
155
156