123 lines
4.4 KiB
C
123 lines
4.4 KiB
C
/*-
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)trace.h 8.1 (Berkeley) 6/2/93
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* $Id: trace.h,v 1.2 1994/08/02 07:53:52 davidg Exp $
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*/
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#ifndef _SYS_TRACE_H_
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#define _SYS_TRACE_H_
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/*
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* File system buffer tracing points; all trace <pack(dev, size), bn>
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*/
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#define TR_BREADHIT 0 /* buffer read found in cache */
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#define TR_BREADMISS 1 /* buffer read not in cache */
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#define TR_BWRITE 2 /* buffer written */
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#define TR_BREADHITRA 3 /* buffer read-ahead found in cache */
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#define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */
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#define TR_XFODMISS 5 /* exe fod read */
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#define TR_XFODHIT 6 /* exe fod read */
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#define TR_BRELSE 7 /* brelse */
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#define TR_BREALLOC 8 /* expand/contract a buffer */
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/*
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* Memory allocator trace points; all trace the amount of memory involved
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*/
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#define TR_MALL 10 /* memory allocated */
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/*
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* Paging trace points: all are <vaddr, pid>
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*/
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#define TR_INTRANS 20 /* page intransit block */
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#define TR_EINTRANS 21 /* page intransit wait done */
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#define TR_FRECLAIM 22 /* reclaim from free list */
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#define TR_RECLAIM 23 /* reclaim from loop */
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#define TR_XSFREC 24 /* reclaim from free list instead of drum */
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#define TR_XIFREC 25 /* reclaim from free list instead of fsys */
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#define TR_WAITMEM 26 /* wait for memory in pagein */
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#define TR_EWAITMEM 27 /* end memory wait in pagein */
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#define TR_ZFOD 28 /* zfod page fault */
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#define TR_EXFOD 29 /* exec fod page fault */
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#define TR_VRFOD 30 /* vread fod page fault */
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#define TR_CACHEFOD 31 /* fod in file system cache */
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#define TR_SWAPIN 32 /* drum page fault */
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#define TR_PGINDONE 33 /* page in done */
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#define TR_SWAPIO 34 /* swap i/o request arrives */
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/*
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* System call trace points.
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*/
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#define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */
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/*
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* Miscellaneous
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*/
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#define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */
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/*
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* This defines the size of the trace flags array.
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*/
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#define TR_NFLAGS 100 /* generous */
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#define TRCSIZ 4096
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/*
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* Specifications of the vtrace() system call, which takes one argument.
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*/
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#define VTRACE 64+51
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#define VTR_DISABLE 0 /* set a trace flag to 0 */
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#define VTR_ENABLE 1 /* set a trace flag to 1 */
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#define VTR_VALUE 2 /* return value of a trace flag */
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#define VTR_UALARM 3 /* set alarm to go off (sig 16) */
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/* in specified number of hz */
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#define VTR_STAMP 4 /* user specified stamp */
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#ifdef KERNEL
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#ifdef TRACE
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struct proc *traceproc;
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int tracewhich, tracebuf[TRCSIZ];
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u_int tracex;
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char traceflags[TR_NFLAGS];
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#define pack(v,b) (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b)
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#define trace(a,b,c) { \
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if (traceflags[a]) \
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trace1(a,b,c); \
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}
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#else
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#define trace(a,b,c)
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#endif
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#endif
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#endif
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