ktr.h revision 112109
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: head/sys/sys/ktr.h 112109 2003-03-11 20:07:22Z jhb $ 30 */ 31 32/* 33 * Wraparound kernel trace buffer support. 34 */ 35 36#ifndef _SYS_KTR_H_ 37#define _SYS_KTR_H_ 38 39/* 40 * Hack around due to egcs-1.1.2 not knowing what __func__ is. 41 */ 42#ifdef __GNUC__ 43#if __GNUC__ == 2 && __GNUC_MINOR__ == 91 /* egcs 1.1.2 */ 44#define __func__ __FUNCTION__ 45#endif 46#endif 47 48/* 49 * Trace classes 50 */ 51#define KTR_GEN 0x00000001 /* General (TR) */ 52#define KTR_NET 0x00000002 /* Network */ 53#define KTR_DEV 0x00000004 /* Device driver */ 54#define KTR_LOCK 0x00000008 /* MP locking */ 55#define KTR_SMP 0x00000010 /* MP general */ 56#define KTR_FS 0x00000020 /* Filesystem */ 57#define KTR_PMAP 0x00000040 /* Pmap tracing */ 58#define KTR_MALLOC 0x00000080 /* Malloc tracing */ 59#define KTR_TRAP 0x00000100 /* Trap processing */ 60#define KTR_INTR 0x00000200 /* Interrupt tracing */ 61#define KTR_SIG 0x00000400 /* Signal processing */ 62#define KTR_CLK 0x00000800 /* hardclock verbose */ 63#define KTR_PROC 0x00001000 /* Process scheduling */ 64#define KTR_SYSC 0x00002000 /* System call */ 65#define KTR_INIT 0x00004000 /* System initialization */ 66#define KTR_KGDB 0x00008000 /* Trace kgdb internals */ 67#define KTR_IO 0x00010000 /* Upper I/O */ 68#define KTR_EVH 0x00020000 /* Eventhandler */ 69#define KTR_NFS 0x00040000 /* The obvious */ 70#define KTR_VOP 0x00080000 /* The obvious */ 71#define KTR_VM 0x00100000 /* The virtual memory system */ 72#define KTR_WITNESS 0x00200000 73#define KTR_RUNQ 0x00400000 /* Run queue */ 74#define KTR_CONTENTION 0x00800000 /* Lock contention */ 75#define KTR_ALL 0x00ffffff 76 77/* 78 * Trace classes which can be assigned to particular use at compile time 79 * These must remain in high 22 as some assembly code counts on it 80 */ 81#define KTR_CT1 0x01000000 82#define KTR_CT2 0x02000000 83#define KTR_CT3 0x04000000 84#define KTR_CT4 0x08000000 85#define KTR_CT5 0x10000000 86#define KTR_CT6 0x20000000 87#define KTR_CT7 0x40000000 88#define KTR_CT8 0x80000000 89 90/* Trace classes to compile in */ 91#ifndef KTR_COMPILE 92#define KTR_COMPILE (KTR_GEN) 93#endif 94 95/* Trace classes that can not be used with KTR_ALQ */ 96#define KTR_ALQ_MASK (KTR_WITNESS) 97 98/* 99 * Version number for ktr_entry struct. Increment this when you break binary 100 * compatibility. 101 */ 102#define KTR_VERSION 1 103 104#define KTR_PARMS 6 105 106#ifndef LOCORE 107 108struct ktr_entry { 109 u_int64_t ktr_timestamp; 110 int ktr_cpu; 111 int ktr_line; 112 const char *ktr_file; 113 const char *ktr_desc; 114 u_long ktr_parms[KTR_PARMS]; 115}; 116 117extern int ktr_cpumask; 118extern int ktr_mask; 119extern int ktr_entries; 120extern int ktr_verbose; 121 122extern volatile int ktr_idx; 123extern struct ktr_entry ktr_buf[]; 124 125#endif /* !LOCORE */ 126#ifdef KTR 127 128void ktr_tracepoint(u_int mask, const char *file, int line, 129 const char *format, u_long arg1, u_long arg2, u_long arg3, 130 u_long arg4, u_long arg5, u_long arg6); 131 132#define CTR6(m, format, p1, p2, p3, p4, p5, p6) do { \ 133 if (KTR_COMPILE & (m)) \ 134 ktr_tracepoint((m), __FILE__, __LINE__, format, \ 135 (u_long)(p1), (u_long)(p2), (u_long)(p3), \ 136 (u_long)(p4), (u_long)(p5), (u_long)(p6)); \ 137 } while(0) 138#define CTR0(m, format) CTR6(m, format, 0, 0, 0, 0, 0, 0) 139#define CTR1(m, format, p1) CTR6(m, format, p1, 0, 0, 0, 0, 0) 140#define CTR2(m, format, p1, p2) CTR6(m, format, p1, p2, 0, 0, 0, 0) 141#define CTR3(m, format, p1, p2, p3) CTR6(m, format, p1, p2, p3, 0, 0, 0) 142#define CTR4(m, format, p1, p2, p3, p4) CTR6(m, format, p1, p2, p3, p4, 0, 0) 143#define CTR5(m, format, p1, p2, p3, p4, p5) CTR6(m, format, p1, p2, p3, p4, p5, 0) 144#else /* KTR */ 145#undef KTR_COMPILE 146#define KTR_COMPILE 0 147#define CTR0(m, d) 148#define CTR1(m, d, p1) 149#define CTR2(m, d, p1, p2) 150#define CTR3(m, d, p1, p2, p3) 151#define CTR4(m, d, p1, p2, p3, p4) 152#define CTR5(m, d, p1, p2, p3, p4, p5) 153#define CTR6(m, d, p1, p2, p3, p4, p5, p6) 154#endif /* KTR */ 155 156#define TR0(d) CTR0(KTR_GEN, d) 157#define TR1(d, p1) CTR1(KTR_GEN, d, p1) 158#define TR2(d, p1, p2) CTR2(KTR_GEN, d, p1, p2) 159#define TR3(d, p1, p2, p3) CTR3(KTR_GEN, d, p1, p2, p3) 160#define TR4(d, p1, p2, p3, p4) CTR4(KTR_GEN, d, p1, p2, p3, p4) 161#define TR5(d, p1, p2, p3, p4, p5) CTR5(KTR_GEN, d, p1, p2, p3, p4, p5) 162#define TR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_GEN, d, p1, p2, p3, p4, p5, p6) 163 164/* 165 * Trace initialization events, similar to CTR with KTR_INIT, but 166 * completely ifdef'ed out if KTR_INIT isn't in KTR_COMPILE (to 167 * save string space, the compiler doesn't optimize out strings 168 * for the conditional ones above). 169 */ 170#if (KTR_COMPILE & KTR_INIT) != 0 171#define ITR0(d) CTR0(KTR_INIT, d) 172#define ITR1(d, p1) CTR1(KTR_INIT, d, p1) 173#define ITR2(d, p1, p2) CTR2(KTR_INIT, d, p1, p2) 174#define ITR3(d, p1, p2, p3) CTR3(KTR_INIT, d, p1, p2, p3) 175#define ITR4(d, p1, p2, p3, p4) CTR4(KTR_INIT, d, p1, p2, p3, p4) 176#define ITR5(d, p1, p2, p3, p4, p5) CTR5(KTR_INIT, d, p1, p2, p3, p4, p5) 177#define ITR6(d, p1, p2, p3, p4, p5, p6) CTR6(KTR_INIT, d, p1, p2, p3, p4, p5, p6) 178#else 179#define ITR0(d) 180#define ITR1(d, p1) 181#define ITR2(d, p1, p2) 182#define ITR3(d, p1, p2, p3) 183#define ITR4(d, p1, p2, p3, p4) 184#define ITR5(d, p1, p2, p3, p4, p5) 185#define ITR6(d, p1, p2, p3, p4, p5, p6) 186#endif 187 188#endif /* !_SYS_KTR_H_ */ 189