projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b688fc87 WJ |
1 | /*- |
| 2 | * Copyright (c) 1982, 1986 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| 32 | * | |
| 33 | * @(#)trace.h 7.6 (Berkeley) 5/5/91 | |
| 34 | */ | |
| 35 | ||
| 36 | /* | |
| 37 | * File system buffer tracing points; all trace <pack(dev, size), bn> | |
| 38 | */ | |
| 39 | #define TR_BREADHIT 0 /* buffer read found in cache */ | |
| 40 | #define TR_BREADMISS 1 /* buffer read not in cache */ | |
| 41 | #define TR_BWRITE 2 /* buffer written */ | |
| 42 | #define TR_BREADHITRA 3 /* buffer read-ahead found in cache */ | |
| 43 | #define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */ | |
| 44 | #define TR_XFODMISS 5 /* exe fod read */ | |
| 45 | #define TR_XFODHIT 6 /* exe fod read */ | |
| 46 | #define TR_BRELSE 7 /* brelse */ | |
| 47 | #define TR_BREALLOC 8 /* expand/contract a buffer */ | |
| 48 | ||
| 49 | /* | |
| 50 | * Memory allocator trace points; all trace the amount of memory involved | |
| 51 | */ | |
| 52 | #define TR_MALL 10 /* memory allocated */ | |
| 53 | ||
| 54 | /* | |
| 55 | * Paging trace points: all are <vaddr, pid> | |
| 56 | */ | |
| 57 | #define TR_INTRANS 20 /* page intransit block */ | |
| 58 | #define TR_EINTRANS 21 /* page intransit wait done */ | |
| 59 | #define TR_FRECLAIM 22 /* reclaim from free list */ | |
| 60 | #define TR_RECLAIM 23 /* reclaim from loop */ | |
| 61 | #define TR_XSFREC 24 /* reclaim from free list instead of drum */ | |
| 62 | #define TR_XIFREC 25 /* reclaim from free list instead of fsys */ | |
| 63 | #define TR_WAITMEM 26 /* wait for memory in pagein */ | |
| 64 | #define TR_EWAITMEM 27 /* end memory wait in pagein */ | |
| 65 | #define TR_ZFOD 28 /* zfod page fault */ | |
| 66 | #define TR_EXFOD 29 /* exec fod page fault */ | |
| 67 | #define TR_VRFOD 30 /* vread fod page fault */ | |
| 68 | #define TR_CACHEFOD 31 /* fod in file system cache */ | |
| 69 | #define TR_SWAPIN 32 /* drum page fault */ | |
| 70 | #define TR_PGINDONE 33 /* page in done */ | |
| 71 | #define TR_SWAPIO 34 /* swap i/o request arrives */ | |
| 72 | ||
| 73 | /* | |
| 74 | * System call trace points. | |
| 75 | */ | |
| 76 | #define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */ | |
| 77 | ||
| 78 | /* | |
| 79 | * Miscellaneous | |
| 80 | */ | |
| 81 | #define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */ | |
| 82 | ||
| 83 | /* | |
| 84 | * This defines the size of the trace flags array. | |
| 85 | */ | |
| 86 | #define TR_NFLAGS 100 /* generous */ | |
| 87 | ||
| 88 | #define TRCSIZ 4096 | |
| 89 | ||
| 90 | /* | |
| 91 | * Specifications of the vtrace() system call, which takes one argument. | |
| 92 | */ | |
| 93 | #define VTRACE 64+51 | |
| 94 | ||
| 95 | #define VTR_DISABLE 0 /* set a trace flag to 0 */ | |
| 96 | #define VTR_ENABLE 1 /* set a trace flag to 1 */ | |
| 97 | #define VTR_VALUE 2 /* return value of a trace flag */ | |
| 98 | #define VTR_UALARM 3 /* set alarm to go off (sig 16) */ | |
| 99 | /* in specified number of hz */ | |
| 100 | #define VTR_STAMP 4 /* user specified stamp */ | |
| 101 | ||
| 102 | #ifdef KERNEL | |
| 103 | #ifdef TRACE | |
| 104 | char traceflags[TR_NFLAGS]; | |
| 105 | struct proc *traceproc; | |
| 106 | int tracebuf[TRCSIZ]; | |
| 107 | unsigned tracex; | |
| 108 | int tracewhich; | |
| 109 | #define pack(v,b) (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b) | |
| 110 | #define trace(a,b,c) if (traceflags[a]) trace1(a,b,c) | |
| 111 | #else | |
| 112 | #define trace(a,b,c) ; | |
| 113 | #endif | |
| 114 | #endif |