usr/src/cmd/dtrace/test/tst/common/proc/tst.signal.ksh

   1 #
   2 # CDDL HEADER START
   3 #
   4 # The contents of this file are subject to the terms of the
   5 # Common Development and Distribution License (the "License").
   6 # You may not use this file except in compliance with the License.
   7 #
   8 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9 # or http://www.opensolaris.org/os/licensing.
  10 # See the License for the specific language governing permissions
  11 # and limitations under the License.
  12 #
  13 # When distributing Covered Code, include this CDDL HEADER in each
  14 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15 # If applicable, add the following below this CDDL HEADER, with the
  16 # fields enclosed by brackets "[]" replaced with your own identifying
  17 # information: Portions Copyright [yyyy] [name of copyright owner]
  18 #
  19 # CDDL HEADER END
  20 #
  21
  22 #
  23 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 # ident "%Z%%M% %I%     %E% SMI"
  27
  28 #
  29 # This script tests that the proc:::signal-send and proc:::signal-handle
  30 # probes fire correctly and with the correct arguments.
  31 #
  32 # If this fails, the script will run indefinitely; it relies on the harness
  33 # to time it out.
  34 #
  35 script()
  36 {
  37         $dtrace -s /dev/stdin <<EOF
  38         proc:::signal-send
  39         /execname == "kill" && curpsinfo->pr_ppid == $child &&
  40             args[1]->pr_psargs == "$longsleep" && args[2] == SIGUSR1/
  41         {
  42                 /*
  43                  * This is guaranteed to not race with signal-handle.
  44                  */
  45                 target = args[1]->pr_pid;
  46         }
  47
  48         proc:::signal-handle
  49         /target == pid && args[0] == SIGUSR1/
  50         {
  51                 exit(0);
  52         }
  53 EOF
  54 }
  55
  56 sleeper()
  57 {
  58         while true; do
  59                 $longsleep &
  60                 sleep 1
  61                 /usr/bin/kill -USR1 $!
  62         done
  63 }
  64
  65 if [ $# != 1 ]; then
  66         echo expected one argument: '<'dtrace-path'>'
  67         exit 2
  68 fi
  69
  70 dtrace=$1
  71 longsleep="/usr/bin/sleep 10000"
  72
  73 sleeper &
  74 child=$!
  75
  76 script
  77 status=$?
  78
  79 pstop $child
  80 pkill -P $child
  81 kill $child
  82 prun $child
  83
  84 exit $status