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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23: /*-
24: * Copyright (c) 1982, 1986, 1993
25: * The Regents of the University of California. All rights reserved.
26: *
27: * Redistribution and use in source and binary forms, with or without
28: * modification, are permitted provided that the following conditions
29: * are met:
30: * 1. Redistributions of source code must retain the above copyright
31: * notice, this list of conditions and the following disclaimer.
32: * 2. Redistributions in binary form must reproduce the above copyright
33: * notice, this list of conditions and the following disclaimer in the
34: * documentation and/or other materials provided with the distribution.
35: * 3. All advertising materials mentioning features or use of this software
36: * must display the following acknowledgement:
37: * This product includes software developed by the University of
38: * California, Berkeley and its contributors.
39: * 4. Neither the name of the University nor the names of its contributors
40: * may be used to endorse or promote products derived from this software
41: * without specific prior written permission.
42: *
43: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53: * SUCH DAMAGE.
54: *
55: * @(#)trace.h 8.1 (Berkeley) 6/2/93
56: */
57:
58: #ifndef _SYS_TRACE_H_
59: #define _SYS_TRACE_H_
60:
61: /*
62: * File system buffer tracing points; all trace <pack(dev, size), bn>
63: */
64: #define TR_BREADHIT 0 /* buffer read found in cache */
65: #define TR_BREADMISS 1 /* buffer read not in cache */
66: #define TR_BWRITE 2 /* buffer written */
67: #define TR_BREADHITRA 3 /* buffer read-ahead found in cache */
68: #define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */
69: #define TR_XFODMISS 5 /* exe fod read */
70: #define TR_XFODHIT 6 /* exe fod read */
71: #define TR_BRELSE 7 /* brelse */
72: #define TR_BREALLOC 8 /* expand/contract a buffer */
73:
74: /*
75: * Memory allocator trace points; all trace the amount of memory involved
76: */
77: #define TR_MALL 10 /* memory allocated */
78:
79: /*
80: * Paging trace points: all are <vaddr, pid>
81: */
82: #define TR_INTRANS 20 /* page intransit block */
83: #define TR_EINTRANS 21 /* page intransit wait done */
84: #define TR_FRECLAIM 22 /* reclaim from free list */
85: #define TR_RECLAIM 23 /* reclaim from loop */
86: #define TR_XSFREC 24 /* reclaim from free list instead of drum */
87: #define TR_XIFREC 25 /* reclaim from free list instead of fsys */
88: #define TR_WAITMEM 26 /* wait for memory in pagein */
89: #define TR_EWAITMEM 27 /* end memory wait in pagein */
90: #define TR_ZFOD 28 /* zfod page fault */
91: #define TR_EXFOD 29 /* exec fod page fault */
92: #define TR_VRFOD 30 /* vread fod page fault */
93: #define TR_CACHEFOD 31 /* fod in file system cache */
94: #define TR_SWAPIN 32 /* drum page fault */
95: #define TR_PGINDONE 33 /* page in done */
96: #define TR_SWAPIO 34 /* swap i/o request arrives */
97:
98: /*
99: * System call trace points.
100: */
101: #define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */
102:
103: /*
104: * Miscellaneous
105: */
106: #define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */
107:
108: /*
109: * This defines the size of the trace flags array.
110: */
111: #define TR_NFLAGS 100 /* generous */
112:
113: #define TRCSIZ 4096
114:
115: /*
116: * Specifications of the vtrace() system call, which takes one argument.
117: */
118: #define VTRACE 64+51
119:
120: #define VTR_DISABLE 0 /* set a trace flag to 0 */
121: #define VTR_ENABLE 1 /* set a trace flag to 1 */
122: #define VTR_VALUE 2 /* return value of a trace flag */
123: #define VTR_UALARM 3 /* set alarm to go off (sig 16) */
124: /* in specified number of hz */
125: #define VTR_STAMP 4 /* user specified stamp */
126:
127: #ifdef KERNEL
128: #if TRACE
129: extern struct proc *traceproc;
130: extern int tracewhich, tracebuf[TRCSIZ];
131: extern u_int tracex;
132: extern char traceflags[TR_NFLAGS];
133: #define pack(v,b) (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b)
134: #define trace(a,b,c) { \
135: if (traceflags[a]) \
136: trace1(a,b,c); \
137: }
138: #else
139: #define trace(a,b,c)
140: #endif
141: #endif /* KERNEL */
142: #endif /* !_SYS_TRACE_H_ */
143:
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