common/mdb/tst.dtracedcmd.ksh

	tst.dtracedcmd.ksh revision c2580b931007758eab8cb5ae8726ebe1588e259b
911106dfb16696472af8c1b7b4c554a829354fa8jm#!/bin/ksh -p
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# CDDL HEADER START
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# The contents of this file are subject to the terms of the
911106dfb16696472af8c1b7b4c554a829354fa8jm# Common Development and Distribution License (the "License").
911106dfb16696472af8c1b7b4c554a829354fa8jm# You may not use this file except in compliance with the License.
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
911106dfb16696472af8c1b7b4c554a829354fa8jm# or http://www.opensolaris.org/os/licensing.
911106dfb16696472af8c1b7b4c554a829354fa8jm# See the License for the specific language governing permissions
911106dfb16696472af8c1b7b4c554a829354fa8jm# and limitations under the License.
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# When distributing Covered Code, include this CDDL HEADER in each
911106dfb16696472af8c1b7b4c554a829354fa8jm# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
911106dfb16696472af8c1b7b4c554a829354fa8jm# If applicable, add the following below this CDDL HEADER, with the
911106dfb16696472af8c1b7b4c554a829354fa8jm# fields enclosed by brackets "[]" replaced with your own identifying
911106dfb16696472af8c1b7b4c554a829354fa8jm# information: Portions Copyright [yyyy] [name of copyright owner]
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# CDDL HEADER END
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
911106dfb16696472af8c1b7b4c554a829354fa8jm# Use is subject to license terms.
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# ident "%Z%%M% %I% %E% SMI"
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm# This script primarily tests that the ::dtrace dcmd is not dumping
911106dfb16696472af8c1b7b4c554a829354fa8jm# core. We don't try to make sense of the output of the dcmd nor
911106dfb16696472af8c1b7b4c554a829354fa8jm# do we check to see if any output is produced. We merely see if
911106dfb16696472af8c1b7b4c554a829354fa8jm# mdb fails with a fatal failure.
911106dfb16696472af8c1b7b4c554a829354fa8jm#
911106dfb16696472af8c1b7b4c554a829354fa8jm
911106dfb16696472af8c1b7b4c554a829354fa8jmscript()
911106dfb16696472af8c1b7b4c554a829354fa8jm{
911106dfb16696472af8c1b7b4c554a829354fa8jm    $dtrace -o $dtraceout -s /dev/stdin <<EOF
911106dfb16696472af8c1b7b4c554a829354fa8jm    syscall:::entry
    {
        @[probefunc] = count();
    }
EOF
}

mdbdoit()
{
    mdb -k <<EOF
    ::walk dtrace_state | ::dtrace
EOF
    status=$?
    kill $script
}

if [ $# != 1 ]; then
    echo expected one argument: '<'dtrace-path'>'
    exit 2
fi

dtrace=$1
dtraceout=/tmp/dtrace.out.$$
script &
script=$!
timeout=15

#
# Sleep while the above script fires into life. To guard against dtrace dying
# and us sleeping forever we allow 15 secs for this to happen. This should be
# enough for even the slowest systems.
#
while [ ! -f $dtraceout ]; do
    sleep 1
    timeout=$(($timeout-1))
    if [ $timeout -eq 0 ]; then
        echo "dtrace failed to start. Exiting."
        exit 1
    fi
done

mdbdoit

rm $dtraceout

exit $status