Date: Wed, 25 Nov 2015 22:59:41 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r291341 - head/share/dtrace Message-ID: <201511252259.tAPMxfIq060477@repo.freebsd.org>
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Author: gnn Date: Wed Nov 25 22:59:41 2015 New Revision: 291341 URL: https://svnweb.freebsd.org/changeset/base/291341 Log: Summary: A simple script to print the return value of any function, with or without wild cards. Added: head/share/dtrace/retval.sh (contents, props changed) Added: head/share/dtrace/retval.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/share/dtrace/retval.sh Wed Nov 25 22:59:41 2015 (r291341) @@ -0,0 +1,43 @@ +#!/bin/sh +# +# Copyright (c) 2015 George V. Neville-Neil <gnn@freebsd.org> +# All rights reserved. +# +# 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 THE AUTHORS 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 THE AUTHORS 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. +# +# $FreeBSD$ +# +# retval.sh - show the return value of any probe named by the user +# +# USAGE: retval.sh name +# +# The name can be a full function name or a wild card name. The +# caller is responsible for handling the escaping of wild cards. +# +/usr/sbin/dtrace -n ' + +#pragma D option quiet + +:::'$1':return { + printf("%s %d\n", probefunc, arg1); +} +'
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