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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*-
27: * Copyright (c) 1982, 1986, 1993
28: * The Regents of the University of California. All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)trace.h 8.1 (Berkeley) 6/2/93
59: */
60:
61: #ifndef _SYS_TRACE_H_
62: #define _SYS_TRACE_H_
63:
64: /*
65: * File system buffer tracing points; all trace <pack(dev, size), bn>
66: */
67: #define TR_BREADHIT 0 /* buffer read found in cache */
68: #define TR_BREADMISS 1 /* buffer read not in cache */
69: #define TR_BWRITE 2 /* buffer written */
70: #define TR_BREADHITRA 3 /* buffer read-ahead found in cache */
71: #define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */
72: #define TR_XFODMISS 5 /* exe fod read */
73: #define TR_XFODHIT 6 /* exe fod read */
74: #define TR_BRELSE 7 /* brelse */
75: #define TR_BREALLOC 8 /* expand/contract a buffer */
76:
77: /*
78: * Memory allocator trace points; all trace the amount of memory involved
79: */
80: #define TR_MALL 10 /* memory allocated */
81:
82: /*
83: * Paging trace points: all are <vaddr, pid>
84: */
85: #define TR_INTRANS 20 /* page intransit block */
86: #define TR_EINTRANS 21 /* page intransit wait done */
87: #define TR_FRECLAIM 22 /* reclaim from free list */
88: #define TR_RECLAIM 23 /* reclaim from loop */
89: #define TR_XSFREC 24 /* reclaim from free list instead of drum */
90: #define TR_XIFREC 25 /* reclaim from free list instead of fsys */
91: #define TR_WAITMEM 26 /* wait for memory in pagein */
92: #define TR_EWAITMEM 27 /* end memory wait in pagein */
93: #define TR_ZFOD 28 /* zfod page fault */
94: #define TR_EXFOD 29 /* exec fod page fault */
95: #define TR_VRFOD 30 /* vread fod page fault */
96: #define TR_CACHEFOD 31 /* fod in file system cache */
97: #define TR_SWAPIN 32 /* drum page fault */
98: #define TR_PGINDONE 33 /* page in done */
99: #define TR_SWAPIO 34 /* swap i/o request arrives */
100:
101: /*
102: * System call trace points.
103: */
104: #define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */
105:
106: /*
107: * Miscellaneous
108: */
109: #define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */
110:
111: /*
112: * This defines the size of the trace flags array.
113: */
114: #define TR_NFLAGS 100 /* generous */
115:
116: #define TRCSIZ 4096
117:
118: /*
119: * Specifications of the vtrace() system call, which takes one argument.
120: */
121: #define VTRACE 64+51
122:
123: #define VTR_DISABLE 0 /* set a trace flag to 0 */
124: #define VTR_ENABLE 1 /* set a trace flag to 1 */
125: #define VTR_VALUE 2 /* return value of a trace flag */
126: #define VTR_UALARM 3 /* set alarm to go off (sig 16) */
127: /* in specified number of hz */
128: #define VTR_STAMP 4 /* user specified stamp */
129:
130: #ifdef _KERNEL
131: #if TRACE
132: extern struct proc *traceproc;
133: extern int tracewhich, tracebuf[TRCSIZ];
134: extern u_int tracex;
135: extern char traceflags[TR_NFLAGS];
136: #define pack(v,b) (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b)
137: void microboot(struct timeval * tvp);
138: #define trace1(a, b, c) { \
139: struct timeval t; \
140: microboot(&t); \
141: tracebuf[tracex++] = t.tv_usec; \
142: tracebuf[tracex++] = (a); \
143: tracebuf[tracex++] = (b); \
144: tracebuf[tracex++] = (c); \
145: tracex %= TRCSIZ; \
146: }
147: #define trace(a,b,c) { \
148: if (traceflags[a]) \
149: trace1(a,b,c); \
150: }
151: #else
152: #define trace(a,b,c)
153: #endif
154: #endif /* _KERNEL */
155: #endif /* !_SYS_TRACE_H_ */
156:
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