The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/bsd/sys/trace.h

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    1 /*
    2  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_LICENSE_HEADER_START@
    5  * 
    6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
    7  * 
    8  * This file contains Original Code and/or Modifications of Original Code
    9  * as defined in and that are subject to the Apple Public Source License
   10  * Version 2.0 (the 'License'). You may not use this file except in
   11  * compliance with the License. Please obtain a copy of the License at
   12  * http://www.opensource.apple.com/apsl/ and read it before using this
   13  * file.
   14  * 
   15  * The Original Code and all software distributed under the License are
   16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   20  * Please see the License for the specific language governing rights and
   21  * limitations under the License.
   22  * 
   23  * @APPLE_LICENSE_HEADER_END@
   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 #include <sys/appleapiopts.h>
   65 
   66 #ifdef __APPLE_API_OBSOLETE
   67 /*
   68  * File system buffer tracing points; all trace <pack(dev, size), bn>
   69  */
   70 #define TR_BREADHIT     0       /* buffer read found in cache */
   71 #define TR_BREADMISS    1       /* buffer read not in cache */
   72 #define TR_BWRITE       2       /* buffer written */
   73 #define TR_BREADHITRA   3       /* buffer read-ahead found in cache */
   74 #define TR_BREADMISSRA  4       /* buffer read-ahead not in cache */
   75 #define TR_XFODMISS     5       /* exe fod read */
   76 #define TR_XFODHIT      6       /* exe fod read */
   77 #define TR_BRELSE       7       /* brelse */
   78 #define TR_BREALLOC     8       /* expand/contract a buffer */
   79 
   80 /*
   81  * Memory allocator trace points; all trace the amount of memory involved
   82  */
   83 #define TR_MALL         10      /* memory allocated */
   84 
   85 /*
   86  * Paging trace points: all are <vaddr, pid>
   87  */
   88 #define TR_INTRANS      20      /* page intransit block */
   89 #define TR_EINTRANS     21      /* page intransit wait done */
   90 #define TR_FRECLAIM     22      /* reclaim from free list */
   91 #define TR_RECLAIM      23      /* reclaim from loop */
   92 #define TR_XSFREC       24      /* reclaim from free list instead of drum */
   93 #define TR_XIFREC       25      /* reclaim from free list instead of fsys */
   94 #define TR_WAITMEM      26      /* wait for memory in pagein */
   95 #define TR_EWAITMEM     27      /* end memory wait in pagein */
   96 #define TR_ZFOD         28      /* zfod page fault */
   97 #define TR_EXFOD        29      /* exec fod page fault */
   98 #define TR_VRFOD        30      /* vread fod page fault */
   99 #define TR_CACHEFOD     31      /* fod in file system cache */
  100 #define TR_SWAPIN       32      /* drum page fault */
  101 #define TR_PGINDONE     33      /* page in done */
  102 #define TR_SWAPIO       34      /* swap i/o request arrives */
  103 
  104 /*
  105  * System call trace points.
  106  */
  107 #define TR_VADVISE      40      /* vadvise occurred with <arg, pid> */
  108 
  109 /*
  110  * Miscellaneous
  111  */
  112 #define TR_STAMP        45      /* user said vtrace(VTR_STAMP, value); */
  113 
  114 /*
  115  * This defines the size of the trace flags array.
  116  */
  117 #define TR_NFLAGS       100     /* generous */
  118 
  119 #define TRCSIZ          4096
  120 
  121 /*
  122  * Specifications of the vtrace() system call, which takes one argument.
  123  */
  124 #define VTRACE          64+51
  125 
  126 #define VTR_DISABLE     0               /* set a trace flag to 0 */
  127 #define VTR_ENABLE      1               /* set a trace flag to 1 */
  128 #define VTR_VALUE       2               /* return value of a trace flag */
  129 #define VTR_UALARM      3               /* set alarm to go off (sig 16) */
  130                                         /* in specified number of hz */
  131 #define VTR_STAMP       4               /* user specified stamp */
  132 
  133 #ifdef KERNEL
  134 #if TRACE
  135 extern struct   proc *traceproc;
  136 extern int      tracewhich, tracebuf[TRCSIZ];
  137 extern u_int    tracex;
  138 extern char     traceflags[TR_NFLAGS];
  139 #define pack(v,b)       (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b)
  140 #define trace(a,b,c) {                                                  \
  141         if (traceflags[a])                                              \
  142                 trace1(a,b,c);                                          \
  143 }
  144 #else
  145 #define trace(a,b,c)
  146 #endif
  147 #endif /* KERNEL */
  148 
  149 #endif /* __APPLE_API_OBSOLETE */
  150 
  151 #endif /* !_SYS_TRACE_H_ */
  152 

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