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/*-
* Copyright 2008 John Birrell <jb@FreeBSD.org>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*
*/
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sdt.h>
#include <sys/sysctl.h>
#include <sys/vnode.h>
SDT_PROVIDER_DEFINE(test);
SDT_PROBE_DEFINE7(test, , , sdttest, sdttest, "int", "int", "int", "int", "int",
"int", "int");
/*
* These are variables that the DTrace test suite references in the
* Solaris kernel. We define them here so that the tests function
* unaltered.
*/
int kmem_flags;
typedef struct vnode vnode_t;
vnode_t dummy;
vnode_t *rootvp = &dummy;
/*
* Test SDT probes with more than 5 arguments. On amd64, such probes require
* special handling since only the first 5 arguments will be passed to
* dtrace_probe() in registers; the rest must be fetched off the stack.
*/
static int
dtrace_test_sdttest(SYSCTL_HANDLER_ARGS)
{
int val, error;
val = 0;
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || req->newptr == NULL)
return (error);
else if (val == 0)
return (0);
SDT_PROBE7(test, , , sdttest, 1, 2, 3, 4, 5, 6, 7);
return (error);
}
static SYSCTL_NODE(_debug, OID_AUTO, dtracetest, CTLFLAG_RD, 0, "");
SYSCTL_PROC(_debug_dtracetest, OID_AUTO, sdttest, CTLTYPE_INT | CTLFLAG_RW,
NULL, 0, dtrace_test_sdttest, "I", "Trigger the SDT test probe");
static int
dtrace_test_modevent(module_t mod, int type, void *data)
{
int error = 0;
switch (type) {
case MOD_LOAD:
break;
case MOD_UNLOAD:
break;
case MOD_SHUTDOWN:
break;
default:
error = EOPNOTSUPP;
break;
}
return (error);
}
DEV_MODULE(dtrace_test, dtrace_test_modevent, NULL);
MODULE_VERSION(dtrace_test, 1);
MODULE_DEPEND(dtrace_test, dtraceall, 1, 1, 1);
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