lttctl/ltt-armall.sh

   1 #!/bin/bash
   2 # Copyright (C) 2009 Benjamin Poirier
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License along
  15 # with this program; if not, write to the Free Software Foundation, Inc.,
  16 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
  19 MARKERSROOT=${DEBUGFSROOT}/ltt/markers
  20
  21 usage () {
  22         echo "Usage: $0 [OPTION]..." > /dev/stderr
  23         echo "Connect lttng markers" > /dev/stderr
  24         echo "" > /dev/stderr
  25         echo "Options:" > /dev/stderr
  26         printf "\t-l           Also activate locking markers (high traffic)\n" > /dev/stderr
  27         printf "\t-n           Also activate detailed network markers (large size)\n" > /dev/stderr
  28         echo "" > /dev/stderr
  29         printf "\t-q           Quiet mode, suppress output\n" > /dev/stderr
  30         printf "\t-h           Print this help\n" > /dev/stderr
  31         echo "" > /dev/stderr
  32 }
  33
  34 if [ ! "$DEBUGFSROOT" ]; then
  35         echo "Error: debugfs not mounted" > /dev/stderr
  36         exit 1;
  37 fi
  38
  39 if [ ! -d "$MARKERSROOT" ]; then
  40         echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr
  41         exit 1;
  42 fi
  43
  44 while getopts "lnqh" options; do
  45         case $options in
  46                 l) LOCKING="0";;
  47                 n) NETWORK="0";;
  48                 q) QUIET="0";;
  49                 h) usage;
  50                         exit 0;;
  51                 \?) usage;
  52                         exit 1;;
  53         esac
  54 done
  55 shift $(($OPTIND - 1))
  56
  57
  58 if [ ! $LOCKING ]; then
  59         TESTS="${TESTS} -name lockdep -prune -o -name locking -prune -o"
  60 fi
  61
  62 if [ ! $NETWORK ]; then
  63         TESTS="${TESTS} -path '*/net/*_extended' -prune -o"
  64 fi
  65
  66 while read -r -d $'\0' marker; do
  67         if [ ! $QUIET ]; then
  68                 echo "Connecting ${marker%/enable}"
  69         fi
  70         echo 1 > $marker
  71 done < <(eval "find '$MARKERSROOT' $TESTS -name metadata -prune -o -name enable -print0")