Introduce an ultra-simple, non-overlapping, int-aligned bcopy called bcopyi().
[dragonfly.git] / sys / sys / ktr.h
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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: /repoman/r/ncvs/src/sys/sys/ktr.h,v 1.21 2003/03/11 20:07:22 jhb Exp $
e0bad1c9 30 * $DragonFly: src/sys/sys/ktr.h,v 1.4 2005/03/09 23:26:11 hmp Exp $
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31 */
32
33/*
34 * Wraparound kernel trace buffer support.
35 */
36
37#ifndef _SYS_KTR_H_
38#define _SYS_KTR_H_
39
282a0149 40#ifdef _KERNEL
81540c2d 41#include "opt_ktr.h"
282a0149 42#endif
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43
44/*
45 * Trace classes
46 */
47#define KTR_GEN 0x00000001 /* General (TR) */
48#define KTR_NET 0x00000002 /* Network */
49#define KTR_DEV 0x00000004 /* Device driver */
50#define KTR_LOCK 0x00000008 /* MP locking */
51#define KTR_SMP 0x00000010 /* MP general */
52#define KTR_FS 0x00000020 /* Filesystem */
53#define KTR_PMAP 0x00000040 /* Pmap tracing */
54#define KTR_MALLOC 0x00000080 /* Malloc tracing */
55#define KTR_TRAP 0x00000100 /* Trap processing */
56#define KTR_INTR 0x00000200 /* Interrupt tracing */
57#define KTR_SIG 0x00000400 /* Signal processing */
58#define KTR_CLK 0x00000800 /* hardclock verbose */
59#define KTR_PROC 0x00001000 /* Process scheduling */
60#define KTR_SYSC 0x00002000 /* System call */
61#define KTR_INIT 0x00004000 /* System initialization */
62#define KTR_KGDB 0x00008000 /* Trace kgdb internals */
63#define KTR_IO 0x00010000 /* Upper I/O */
64#define KTR_EVH 0x00020000 /* Eventhandler */
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65#define KTR_NFS 0x00040000 /* NFS */
66#define KTR_VOP 0x00080000 /* VFS and VNODE ops */
81540c2d 67#define KTR_VM 0x00100000 /* The virtual memory system */
e0bad1c9 68#define KTR_RUNQ 0x00200000 /* Run queue */
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69#define KTR_CONTENTION 0x00800000 /* Lock contention */
70#define KTR_ALL 0x00ffffff
71
72/*
73 * Trace classes which can be assigned to particular use at compile time
74 * These must remain in high 22 as some assembly code counts on it
75 */
76#define KTR_CT1 0x01000000
77#define KTR_CT2 0x02000000
78#define KTR_CT3 0x04000000
79#define KTR_CT4 0x08000000
80#define KTR_CT5 0x10000000
81#define KTR_CT6 0x20000000
82#define KTR_CT7 0x40000000
83#define KTR_CT8 0x80000000
84
85/* Trace classes to compile in */
86#ifndef KTR_COMPILE
87#define KTR_COMPILE (KTR_ALL)
88#endif
89
90/*
91 * Version number for ktr_entry struct. Increment this when you break binary
92 * compatibility.
93 */
94#define KTR_VERSION 1
95
96#define KTR_PARMS 6
97
98#ifndef LOCORE
99
100struct ktr_entry {
101 u_int64_t ktr_timestamp;
102 int ktr_cpu;
103 int ktr_line;
104 const char *ktr_file;
105 const char *ktr_desc;
106 u_long ktr_parms[KTR_PARMS];
107};
108
109extern int ktr_cpumask;
110extern int ktr_mask;
111extern int ktr_entries;
112extern int ktr_verbose;
113
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114extern volatile int ktr_idx[MAXCPU];
115extern struct ktr_entry *ktr_buf[MAXCPU];
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116
117#endif /* !LOCORE */
118
119#ifdef KTR
120
121void ktr_tracepoint(u_int mask, const char *file, int line,
122 const char *format, u_long arg1, u_long arg2, u_long arg3,
123 u_long arg4, u_long arg5, u_long arg6);
124
125#define CTR6(m, format, p1, p2, p3, p4, p5, p6) do { \
126 if (KTR_COMPILE & (m)) \
127 ktr_tracepoint((m), __FILE__, __LINE__, format, \
128 (u_long)(p1), (u_long)(p2), (u_long)(p3), \
129 (u_long)(p4), (u_long)(p5), (u_long)(p6)); \
130 } while(0)
131#define CTR0(m, format) CTR6(m, format, 0, 0, 0, 0, 0, 0)
132#define CTR1(m, format, p1) CTR6(m, format, p1, 0, 0, 0, 0, 0)
133#define CTR2(m, format, p1, p2) CTR6(m, format, p1, p2, 0, 0, 0, 0)
134#define CTR3(m, format, p1, p2, p3) CTR6(m, format, p1, p2, p3, 0, 0, 0)
135#define CTR4(m, format, p1, p2, p3, p4) CTR6(m, format, p1, p2, p3, p4, 0, 0)
136#define CTR5(m, format, p1, p2, p3, p4, p5) CTR6(m, format, p1, p2, p3, p4, p5, 0)
137#else /* KTR */
138#undef KTR_COMPILE
139#define KTR_COMPILE 0
140#define CTR0(m, d)
141#define CTR1(m, d, p1)
142#define CTR2(m, d, p1, p2)
143#define CTR3(m, d, p1, p2, p3)
144#define CTR4(m, d, p1, p2, p3, p4)
145#define CTR5(m, d, p1, p2, p3, p4, p5)
146#define CTR6(m, d, p1, p2, p3, p4, p5, p6)
147#endif /* KTR */
148
149#define TR0(d) CTR0(KTR_GEN, d)
150#define TR1(d, p1) CTR1(KTR_GEN, d, p1)
151#define TR2(d, p1, p2) CTR2(KTR_GEN, d, p1, p2)
152#define TR3(d, p1, p2, p3) CTR3(KTR_GEN, d, p1, p2, p3)
153#define TR4(d, p1, p2, p3, p4) CTR4(KTR_GEN, d, p1, p2, p3, p4)
154#define TR5(d, p1, p2, p3, p4, p5) CTR5(KTR_GEN, d, p1, p2, p3, p4, p5)
155#define TR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_GEN, d, p1, p2, p3, p4, p5, p6)
156
157/*
158 * Trace initialization events, similar to CTR with KTR_INIT, but
159 * completely ifdef'ed out if KTR_INIT isn't in KTR_COMPILE (to
160 * save string space, the compiler doesn't optimize out strings
161 * for the conditional ones above).
162 */
163#if (KTR_COMPILE & KTR_INIT) != 0
164#define ITR0(d) CTR0(KTR_INIT, d)
165#define ITR1(d, p1) CTR1(KTR_INIT, d, p1)
166#define ITR2(d, p1, p2) CTR2(KTR_INIT, d, p1, p2)
167#define ITR3(d, p1, p2, p3) CTR3(KTR_INIT, d, p1, p2, p3)
168#define ITR4(d, p1, p2, p3, p4) CTR4(KTR_INIT, d, p1, p2, p3, p4)
169#define ITR5(d, p1, p2, p3, p4, p5) CTR5(KTR_INIT, d, p1, p2, p3, p4, p5)
170#define ITR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_INIT, d, p1, p2, p3, p4, p5, p6)
171#else
172#define ITR0(d)
173#define ITR1(d, p1)
174#define ITR2(d, p1, p2)
175#define ITR3(d, p1, p2, p3)
176#define ITR4(d, p1, p2, p3, p4)
177#define ITR5(d, p1, p2, p3, p4, p5)
178#define ITR6(d, p1, p2, p3, p4, p5, p6)
179#endif
180
181#endif /* !_SYS_KTR_H_ */