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Text File | 1992-09-04 | 4.2 KB | 115 lines | [TEXT/UNIX] |
- /*-
- * Copyright (c) 1982, 1986 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)trace.h 7.6 (Berkeley) 5/5/91
- */
-
- /*
- * File system buffer tracing points; all trace <pack(dev, size), bn>
- */
- #define TR_BREADHIT 0 /* buffer read found in cache */
- #define TR_BREADMISS 1 /* buffer read not in cache */
- #define TR_BWRITE 2 /* buffer written */
- #define TR_BREADHITRA 3 /* buffer read-ahead found in cache */
- #define TR_BREADMISSRA 4 /* buffer read-ahead not in cache */
- #define TR_XFODMISS 5 /* exe fod read */
- #define TR_XFODHIT 6 /* exe fod read */
- #define TR_BRELSE 7 /* brelse */
- #define TR_BREALLOC 8 /* expand/contract a buffer */
-
- /*
- * Memory allocator trace points; all trace the amount of memory involved
- */
- #define TR_MALL 10 /* memory allocated */
-
- /*
- * Paging trace points: all are <vaddr, pid>
- */
- #define TR_INTRANS 20 /* page intransit block */
- #define TR_EINTRANS 21 /* page intransit wait done */
- #define TR_FRECLAIM 22 /* reclaim from free list */
- #define TR_RECLAIM 23 /* reclaim from loop */
- #define TR_XSFREC 24 /* reclaim from free list instead of drum */
- #define TR_XIFREC 25 /* reclaim from free list instead of fsys */
- #define TR_WAITMEM 26 /* wait for memory in pagein */
- #define TR_EWAITMEM 27 /* end memory wait in pagein */
- #define TR_ZFOD 28 /* zfod page fault */
- #define TR_EXFOD 29 /* exec fod page fault */
- #define TR_VRFOD 30 /* vread fod page fault */
- #define TR_CACHEFOD 31 /* fod in file system cache */
- #define TR_SWAPIN 32 /* drum page fault */
- #define TR_PGINDONE 33 /* page in done */
- #define TR_SWAPIO 34 /* swap i/o request arrives */
-
- /*
- * System call trace points.
- */
- #define TR_VADVISE 40 /* vadvise occurred with <arg, pid> */
-
- /*
- * Miscellaneous
- */
- #define TR_STAMP 45 /* user said vtrace(VTR_STAMP, value); */
-
- /*
- * This defines the size of the trace flags array.
- */
- #define TR_NFLAGS 100 /* generous */
-
- #define TRCSIZ 4096
-
- /*
- * Specifications of the vtrace() system call, which takes one argument.
- */
- #define VTRACE 64+51
-
- #define VTR_DISABLE 0 /* set a trace flag to 0 */
- #define VTR_ENABLE 1 /* set a trace flag to 1 */
- #define VTR_VALUE 2 /* return value of a trace flag */
- #define VTR_UALARM 3 /* set alarm to go off (sig 16) */
- /* in specified number of hz */
- #define VTR_STAMP 4 /* user specified stamp */
-
- #ifdef KERNEL
- #ifdef TRACE
- char traceflags[TR_NFLAGS];
- struct proc *traceproc;
- int tracebuf[TRCSIZ];
- unsigned tracex;
- int tracewhich;
- #define pack(v,b) (((v)->v_mount->mnt_stat.f_fsid.val[0])<<16)|(b)
- #define trace(a,b,c) if (traceflags[a]) trace1(a,b,c)
- #else
- #define trace(a,b,c) ;
- #endif
- #endif
-