1 /*- 2 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 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. 12 * 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 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #include "opt_kdtrace.h" 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/sdt.h> 33 34 /* 35 * Hook for the DTrace probe function. The SDT provider will set this to 36 * dtrace_probe() when it loads. 37 */ 38 sdt_probe_func_t sdt_probe_func = sdt_probe_stub; 39 40 /* 41 * This is a stub for probe calls in case kernel DTrace support isn't 42 * enabled. It should never get called because there is no DTrace support 43 * to enable it. 44 */ 45 void 46 sdt_probe_stub(uint32_t id, uintptr_t arg0, uintptr_t arg1, 47 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4) 48 { 49 50 printf("sdt_probe_stub: Why did this get called?\n"); 51 } 52