FreeBSD/Linux Kernel Cross Reference
sys/sys/ktr.h
1 /*-
2 * Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Berkeley Software Design Inc's name may not be used to endorse or
13 * promote products derived from this software without specific prior
14 * written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
29 * $FreeBSD: releng/6.3/sys/sys/ktr.h 173886 2007-11-24 19:45:58Z cvs2svn $
30 */
31
32 /*
33 * Wraparound kernel trace buffer support.
34 */
35
36 #ifndef _SYS_KTR_H_
37 #define _SYS_KTR_H_
38
39 /*
40 * Trace classes
41 */
42 #define KTR_GEN 0x00000001 /* General (TR) */
43 #define KTR_NET 0x00000002 /* Network */
44 #define KTR_DEV 0x00000004 /* Device driver */
45 #define KTR_LOCK 0x00000008 /* MP locking */
46 #define KTR_SMP 0x00000010 /* MP general */
47 #define KTR_FS 0x00000020 /* Filesystem */
48 #define KTR_PMAP 0x00000040 /* Pmap tracing */
49 #define KTR_MALLOC 0x00000080 /* Malloc tracing */
50 #define KTR_TRAP 0x00000100 /* Trap processing */
51 #define KTR_INTR 0x00000200 /* Interrupt tracing */
52 #define KTR_SIG 0x00000400 /* Signal processing */
53 #define KTR_CLK 0x00000800 /* hardclock verbose */
54 #define KTR_PROC 0x00001000 /* Process scheduling */
55 #define KTR_SYSC 0x00002000 /* System call */
56 #define KTR_INIT 0x00004000 /* System initialization */
57 #define KTR_KGDB 0x00008000 /* Trace kgdb internals */
58 #define KTR_IO 0x00010000 /* Upper I/O */
59 #define KTR_EVH 0x00020000 /* Eventhandler */
60 #define KTR_VFS 0x00040000 /* VFS events */
61 #define KTR_VOP 0x00080000 /* Auto-generated vop events */
62 #define KTR_VM 0x00100000 /* The virtual memory system */
63 #define KTR_WITNESS 0x00200000
64 #define KTR_RUNQ 0x00400000 /* Run queue */
65 #define KTR_CONTENTION 0x00800000 /* Lock contention */
66 #define KTR_UMA 0x01000000 /* UMA slab allocator */
67 #define KTR_CALLOUT 0x02000000 /* Callouts and timeouts */
68 #define KTR_GEOM 0x04000000 /* GEOM I/O events */
69 #define KTR_BUSDMA 0x08000000 /* busdma(9) events */
70 #define KTR_CRITICAL 0x10000000 /* Critical sections */
71 #define KTR_SCHED 0x20000000 /* Machine parsed sched info. */
72 #define KTR_BUF 0x40000000 /* Buffer cache */
73 #define KTR_ALL 0x7fffffff
74
75 /*
76 * Trace classes which can be assigned to particular use at compile time
77 * These must remain in high 22 as some assembly code counts on it
78 */
79 #define KTR_CT1 0x01000000
80 #define KTR_CT2 0x02000000
81 #define KTR_CT3 0x04000000
82 #define KTR_CT4 0x08000000
83 #define KTR_CT5 0x10000000
84 #define KTR_CT6 0x20000000
85 #define KTR_CT7 0x40000000
86 #define KTR_CT8 0x80000000
87
88 /* Trace classes to compile in */
89 #ifdef KTR
90 #ifndef KTR_COMPILE
91 #define KTR_COMPILE (KTR_ALL)
92 #endif
93 #else /* !KTR */
94 #undef KTR_COMPILE
95 #define KTR_COMPILE 0
96 #endif /* KTR */
97
98 /* Trace classes that can not be used with KTR_ALQ */
99 #define KTR_ALQ_MASK (KTR_WITNESS)
100
101 /*
102 * Version number for ktr_entry struct. Increment this when you break binary
103 * compatibility.
104 */
105 #define KTR_VERSION 2
106
107 #define KTR_PARMS 6
108
109 #ifndef LOCORE
110
111 struct ktr_entry {
112 u_int64_t ktr_timestamp;
113 int ktr_cpu;
114 int ktr_line;
115 const char *ktr_file;
116 const char *ktr_desc;
117 struct thread *ktr_thread;
118 u_long ktr_parms[KTR_PARMS];
119 };
120
121 extern int ktr_cpumask;
122 extern int ktr_mask;
123 extern int ktr_entries;
124 extern int ktr_verbose;
125
126 extern volatile int ktr_idx;
127 extern struct ktr_entry ktr_buf[];
128
129 #ifdef KTR
130
131 void ktr_tracepoint(u_int mask, const char *file, int line,
132 const char *format, u_long arg1, u_long arg2, u_long arg3,
133 u_long arg4, u_long arg5, u_long arg6);
134
135 #define CTR6(m, format, p1, p2, p3, p4, p5, p6) do { \
136 if (KTR_COMPILE & (m)) \
137 ktr_tracepoint((m), __FILE__, __LINE__, format, \
138 (u_long)(p1), (u_long)(p2), (u_long)(p3), \
139 (u_long)(p4), (u_long)(p5), (u_long)(p6)); \
140 } while(0)
141 #define CTR0(m, format) CTR6(m, format, 0, 0, 0, 0, 0, 0)
142 #define CTR1(m, format, p1) CTR6(m, format, p1, 0, 0, 0, 0, 0)
143 #define CTR2(m, format, p1, p2) CTR6(m, format, p1, p2, 0, 0, 0, 0)
144 #define CTR3(m, format, p1, p2, p3) CTR6(m, format, p1, p2, p3, 0, 0, 0)
145 #define CTR4(m, format, p1, p2, p3, p4) CTR6(m, format, p1, p2, p3, p4, 0, 0)
146 #define CTR5(m, format, p1, p2, p3, p4, p5) CTR6(m, format, p1, p2, p3, p4, p5, 0)
147 #else /* KTR */
148 #define CTR0(m, d)
149 #define CTR1(m, d, p1)
150 #define CTR2(m, d, p1, p2)
151 #define CTR3(m, d, p1, p2, p3)
152 #define CTR4(m, d, p1, p2, p3, p4)
153 #define CTR5(m, d, p1, p2, p3, p4, p5)
154 #define CTR6(m, d, p1, p2, p3, p4, p5, p6)
155 #endif /* KTR */
156
157 #define TR0(d) CTR0(KTR_GEN, d)
158 #define TR1(d, p1) CTR1(KTR_GEN, d, p1)
159 #define TR2(d, p1, p2) CTR2(KTR_GEN, d, p1, p2)
160 #define TR3(d, p1, p2, p3) CTR3(KTR_GEN, d, p1, p2, p3)
161 #define TR4(d, p1, p2, p3, p4) CTR4(KTR_GEN, d, p1, p2, p3, p4)
162 #define TR5(d, p1, p2, p3, p4, p5) CTR5(KTR_GEN, d, p1, p2, p3, p4, p5)
163 #define TR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_GEN, d, p1, p2, p3, p4, p5, p6)
164
165 /*
166 * Trace initialization events, similar to CTR with KTR_INIT, but
167 * completely ifdef'ed out if KTR_INIT isn't in KTR_COMPILE (to
168 * save string space, the compiler doesn't optimize out strings
169 * for the conditional ones above).
170 */
171 #if (KTR_COMPILE & KTR_INIT) != 0
172 #define ITR0(d) CTR0(KTR_INIT, d)
173 #define ITR1(d, p1) CTR1(KTR_INIT, d, p1)
174 #define ITR2(d, p1, p2) CTR2(KTR_INIT, d, p1, p2)
175 #define ITR3(d, p1, p2, p3) CTR3(KTR_INIT, d, p1, p2, p3)
176 #define ITR4(d, p1, p2, p3, p4) CTR4(KTR_INIT, d, p1, p2, p3, p4)
177 #define ITR5(d, p1, p2, p3, p4, p5) CTR5(KTR_INIT, d, p1, p2, p3, p4, p5)
178 #define ITR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_INIT, d, p1, p2, p3, p4, p5, p6)
179 #else
180 #define ITR0(d)
181 #define ITR1(d, p1)
182 #define ITR2(d, p1, p2)
183 #define ITR3(d, p1, p2, p3)
184 #define ITR4(d, p1, p2, p3, p4)
185 #define ITR5(d, p1, p2, p3, p4, p5)
186 #define ITR6(d, p1, p2, p3, p4, p5, p6)
187 #endif
188
189 #endif /* !LOCORE */
190
191 #endif /* !_SYS_KTR_H_ */
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