2 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include "opt_kdtrace.h"
30 #include <sys/param.h>
31 #include <sys/systm.h>
35 SDT_PROVIDER_DEFINE(sdt);
38 * Hook for the DTrace probe function. The SDT provider will set this to
39 * dtrace_probe() when it loads.
41 sdt_probe_func_t sdt_probe_func = sdt_probe_stub;
44 * This is a stub for probe calls in case kernel DTrace support isn't
45 * enabled. It should never get called because there is no DTrace support
49 sdt_probe_stub(uint32_t id, uintptr_t arg0, uintptr_t arg1,
50 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4)
53 printf("sdt_probe_stub: unexpectedly called\n");