19e252baeb
- DTrace scripts to check for errors, performance, ... they serve mostly as examples of what you can do with the static probe;s with moderate load the scripts may be overwhelmed, excessive lock-tracing may influence program behavior (see the last design decission) Design decissions: - use "linuxulator" as the provider for the native bitsize; add the bitsize for the non-native emulation (e.g. "linuxuator32" on amd64) - Add probes only for locks which are acquired in one function and released in another function. Locks which are aquired and released in the same function should be easy to pair in the code, inter-function locking is more easy to verify in DTrace. - Probes for locks should be fired after locking and before releasing to prevent races (to provide data/function stability in DTrace, see the man-page of "dtrace -v ..." and the corresponding DTrace docs).
96 lines
4.1 KiB
C
96 lines
4.1 KiB
C
/*-
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* Copyright (c) 2008-2012 Alexander Leidinger <netchild@FreeBSD.org>
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* All rights reserved.
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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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* in this position and unchanged.
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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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_DTRACE_H_
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#define _LINUX_DTRACE_H_
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/**
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* DTrace support macros for the linuxulator.
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*
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* Some wrapper macros to make it more easy to handle the linuxulator
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* providers and to allow to make the name depend upon the bitsize.
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*
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* Basically this is the same as the normal SDT macros in sys/sdt.h. The
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* difference is that the provider name is automatically inserted, and
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* we do not use a different name for the probe-description.
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*/
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#define LIN_SDT_PROVIDER_DEFINE(x) SDT_PROVIDER_DEFINE(x)
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#define LIN_SDT_PROVIDER_DECLARE(x) SDT_PROVIDER_DECLARE(x)
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#define _LIN_SDT_PROBE_DECLARE(a, b, c, d) SDT_PROBE_DECLARE(a, b, c, d)
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#define LIN_SDT_PROBE_DECLARE(a, b, c) _LIN_SDT_PROBE_DECLARE( \
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LINUX_DTRACE, a, b, c)
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#define _LIN_SDT_PROBE_DEFINE0(a, b, c, d) SDT_PROBE_DEFINE(a, \
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b, c, d, d)
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#define LIN_SDT_PROBE_DEFINE0(a, b, c) _LIN_SDT_PROBE_DEFINE0(\
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LINUX_DTRACE, a, b, c)
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#define _LIN_SDT_PROBE_DEFINE1(a, b, c, d, e) SDT_PROBE_DEFINE1(a, \
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b, c, d, d, e)
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#define LIN_SDT_PROBE_DEFINE1(a, b, c, d) _LIN_SDT_PROBE_DEFINE1(\
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LINUX_DTRACE, a, b, c, d)
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#define _LIN_SDT_PROBE_DEFINE2(a, b, c, d, e, f) SDT_PROBE_DEFINE2(a, \
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b, c, d, d, e, f)
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#define LIN_SDT_PROBE_DEFINE2(a, b, c, d, e) _LIN_SDT_PROBE_DEFINE2(\
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LINUX_DTRACE, a, b, c, d, e)
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#define _LIN_SDT_PROBE_DEFINE3(a, b, c, d, e, f, g) SDT_PROBE_DEFINE3(a, \
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b, c, d, d, e, f, g)
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#define LIN_SDT_PROBE_DEFINE3(a, b, c, d, e, f) _LIN_SDT_PROBE_DEFINE3(\
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LINUX_DTRACE, a, b, c, d, e, f)
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#define _LIN_SDT_PROBE_DEFINE4(a, b, c, d, e, f, g, h) SDT_PROBE_DEFINE4(a, \
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b, c, d, d, e, f, g, h)
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#define LIN_SDT_PROBE_DEFINE4(a, b, c, d, e, f, g) _LIN_SDT_PROBE_DEFINE4(\
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LINUX_DTRACE, a, b, c, d, e, f, g)
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#define _LIN_SDT_PROBE_DEFINE5(a, b, c, d, e, f, g, h, i) \
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SDT_PROBE_DEFINE5(a, b, c, d, d, e, f, g, h, i)
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#define LIN_SDT_PROBE_DEFINE5(a, b, c, d, e, f, g, h) _LIN_SDT_PROBE_DEFINE5(\
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LINUX_DTRACE, a, b, c, d, e, f, g, h)
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#define _LIN_SDT_PROBE_ARGTYPE(a, b, c, d, e, f) SDT_PROBE_ARGTYPE(a, b,\
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c, d, e, f)
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#define LIN_SDT_PROBE_ARGTYPE(a, b, c, d, e) _LIN_SDT_PROBE_ARGTYPE( \
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LINUX_DTRACE, a, b, c, d, e)
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#define LIN_SDT_PROBE0(a, b, c) SDT_PROBE1(LINUX_DTRACE, a, b, \
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c, 0)
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#define LIN_SDT_PROBE1(a, b, c, d) SDT_PROBE1(LINUX_DTRACE, a, b, \
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c, d)
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#define LIN_SDT_PROBE2(a, b, c, d, e) SDT_PROBE2(LINUX_DTRACE, a, b, \
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c, d, e)
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#define LIN_SDT_PROBE3(a, b, c, d, e, f) SDT_PROBE3(LINUX_DTRACE, a, b, \
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c, d, e, f)
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#define LIN_SDT_PROBE4(a, b, c, d, e, f, g) SDT_PROBE4(LINUX_DTRACE, a, b, \
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c, d, e, f, g)
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#define _LIN_SDT_PROBE5(a, b, c, d, e, f, g, h, i) SDT_PROBE(a, b, c, d, \
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e, f, g, h, i)
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#define LIN_SDT_PROBE5(a, b, c, d, e, f, g, h) _LIN_SDT_PROBE5(LINUX_DTRACE, \
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a, b, c, d, e, f, g, h)
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#endif /* _LINUX_DTRACE_H_ */
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