diff options
Diffstat (limited to 'cddl/contrib/opensolaris/cmd/dtrace/test/tst/sparc/ustack/tst.trapstat.ksh')
-rw-r--r-- | cddl/contrib/opensolaris/cmd/dtrace/test/tst/sparc/ustack/tst.trapstat.ksh | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/sparc/ustack/tst.trapstat.ksh b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/sparc/ustack/tst.trapstat.ksh new file mode 100644 index 0000000..84af800 --- /dev/null +++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/sparc/ustack/tst.trapstat.ksh @@ -0,0 +1,87 @@ +#/bin/ksh -p +# +# CDDL HEADER START +# +# The contents of this file are subject to the terms of the +# Common Development and Distribution License (the "License"). +# You may not use this file except in compliance with the License. +# +# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE +# or http://www.opensolaris.org/os/licensing. +# See the License for the specific language governing permissions +# and limitations under the License. +# +# When distributing Covered Code, include this CDDL HEADER in each +# file and include the License file at usr/src/OPENSOLARIS.LICENSE. +# If applicable, add the following below this CDDL HEADER, with the +# fields enclosed by brackets "[]" replaced with your own identifying +# information: Portions Copyright [yyyy] [name of copyright owner] +# +# CDDL HEADER END +# + +# +# Copyright 2007 Sun Microsystems, Inc. All rights reserved. +# Use is subject to license terms. +# +# ident "%Z%%M% %I% %E% SMI" + +# +# This script verifies that user-land stacks can be walked safely +# when the trapstat(1M) utility is running. An arbitrary program, w(1), +# is started once a second to ensure stacks can be walked at all stages +# of the process lifecycle. +# + +script() +{ + $dtrace -o $dtraceout -s /dev/stdin <<EOF + fbt::: + { + @[ustackdepth] = count(); + } +EOF +} + +run_commands() +{ + cnt=0 + + while [ $cnt -lt 10 ]; do + w > /dev/null + sleep 1 + cnt=$(($cnt+1)) + done +} + +if [ $# != 1 ]; then + echo expected one argument: '<'dtrace-path'>' + exit 2 +fi + +dtrace=$1 +dtraceout=/tmp/dtrace.out.$$ +script 2>/dev/null & +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 [ $timeout -eq 0 ]; then + echo "dtrace failed to start. Exiting." + exit 1 + fi +done + +run_commands & +trapstat -t 1 10 +status=$? + +rm $dtraceout + +exit $status |