d9fae5ab88
In its stead use the Solaris / illumos approach of emulating '-' (dash) in probe names with '__' (two consecutive underscores). Reviewed by: markj MFC after: 3 weeks
109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*-
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* Copyright 2008 John Birrell <jb@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/sdt.h>
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#include <sys/sysctl.h>
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#include <sys/vnode.h>
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SDT_PROVIDER_DEFINE(test);
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SDT_PROBE_DEFINE7(test, , , sdttest, "int", "int", "int", "int", "int",
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"int", "int");
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/*
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* These are variables that the DTrace test suite references in the
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* Solaris kernel. We define them here so that the tests function
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* unaltered.
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*/
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int kmem_flags;
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typedef struct vnode vnode_t;
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vnode_t dummy;
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vnode_t *rootvp = &dummy;
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/*
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* Test SDT probes with more than 5 arguments. On amd64, such probes require
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* special handling since only the first 5 arguments will be passed to
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* dtrace_probe() in registers; the rest must be fetched off the stack.
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*/
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static int
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dtrace_test_sdttest(SYSCTL_HANDLER_ARGS)
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{
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int val, error;
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val = 0;
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error = sysctl_handle_int(oidp, &val, 0, req);
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if (error || req->newptr == NULL)
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return (error);
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else if (val == 0)
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return (0);
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SDT_PROBE7(test, , , sdttest, 1, 2, 3, 4, 5, 6, 7);
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return (error);
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}
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static SYSCTL_NODE(_debug, OID_AUTO, dtracetest, CTLFLAG_RD, 0, "");
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SYSCTL_PROC(_debug_dtracetest, OID_AUTO, sdttest, CTLTYPE_INT | CTLFLAG_RW,
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NULL, 0, dtrace_test_sdttest, "I", "Trigger the SDT test probe");
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static int
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dtrace_test_modevent(module_t mod, int type, void *data)
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{
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int error = 0;
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switch (type) {
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case MOD_LOAD:
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break;
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case MOD_UNLOAD:
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break;
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case MOD_SHUTDOWN:
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break;
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default:
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error = EOPNOTSUPP;
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break;
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}
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return (error);
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}
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DEV_MODULE(dtrace_test, dtrace_test_modevent, NULL);
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MODULE_VERSION(dtrace_test, 1);
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MODULE_DEPEND(dtrace_test, dtraceall, 1, 1, 1);
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