tst.dtracedcmd.ksh revision 256281
1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright 2006 Sun Microsystems, Inc. All rights reserved. 25# Use is subject to license terms. 26# 27# ident "%Z%%M% %I% %E% SMI" 28# 29 30# 31# This script primarily tests that the ::dtrace dcmd is not dumping 32# core. We don't try to make sense of the output of the dcmd nor 33# do we check to see if any output is produced. We merely see if 34# mdb fails with a fatal failure. 35# 36 37script() 38{ 39 $dtrace -o $dtraceout -s /dev/stdin <<EOF 40 syscall:::entry 41 { 42 @[probefunc] = count(); 43 } 44EOF 45} 46 47mdbdoit() 48{ 49 mdb -k <<EOF 50 ::walk dtrace_state | ::dtrace 51EOF 52 status=$? 53 kill $script 54} 55 56if [ $# != 1 ]; then 57 echo expected one argument: '<'dtrace-path'>' 58 exit 2 59fi 60 61dtrace=$1 62dtraceout=/tmp/dtrace.out.$$ 63script & 64script=$! 65timeout=15 66 67# 68# Sleep while the above script fires into life. To guard against dtrace dying 69# and us sleeping forever we allow 15 secs for this to happen. This should be 70# enough for even the slowest systems. 71# 72while [ ! -f $dtraceout ]; do 73 sleep 1 74 timeout=$(($timeout-1)) 75 if [ $timeout -eq 0 ]; then 76 echo "dtrace failed to start. Exiting." 77 exit 1 78 fi 79done 80 81mdbdoit 82 83rm $dtraceout 84 85exit $status 86