1 #! /usr/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 # get_tunable.ksh support function
  28 #
  29 
  30 [ -n "$DEBUG" ] && [ "$DEBUG" != "0" ] && set -x
  31 
  32 NAME=`basename $0`
  33 
  34 if [ $# -lt 1 ]; then
  35         print -u 2 "Usage: $NAME kernel_symbol"
  36         return 1
  37 fi
  38 
  39 symbol=$1
  40 Type="X"
  41 [ $# -ge 2 ] && Type=$2
  42 out=$(echo "$symbol/$Type" | mdb -k /dev/ksyms /dev/kmem | \
  43         tail -1 | sed 's/:/ /' | awk '{print $2}' 2> /dev/null)
  44 res=$?
  45 if [ $res = "0" ]; then
  46         echo $out
  47 fi
  48 return $res