1
2/*-
3 * Copyright (c) 1990 The Regents of the University of California.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * William Jolitz.
8 *

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47#include "kernel.h"
48#include "mtio.h"
49#include "buf.h"
50#include "trace.h"
51
52#ifdef TRACE
53int nvualarm;
54
55struct vtrace_args {
56 int request;
57 int value;
58};
59
60vtrace(p, uap, retval)
61 struct proc *p;
62 register struct vtrace_args *uap;
63 int *retval;
64{
65 int vdoualarm();
66
67 switch (uap->request) {
68
69 case VTR_DISABLE: /* disable a trace point */
70 case VTR_ENABLE: /* enable a trace point */

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