| 1 | # Copyright (C) 2009 Benjamin Poirier |
| 2 | # Copyright (C) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 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=$(awk '{if ($3 == "debugfs") print $2}' /proc/mounts | head -n 1) |
| 19 | MARKERSROOT=${DEBUGFSROOT}/ltt/markers |
| 20 | DEFAULTMODULES="ltt-trace-control ltt-marker-control ltt-kprobes ltt-userspace-event ltt-statedump ipc-trace kernel-trace mm-trace net-trace fs-trace jbd2-trace syscall-trace trap-trace block-trace rcu-trace ltt-relay ltt-tracer" |
| 21 | EXTRAMODULES="lockdep-trace net-extended-trace" |
| 22 | |
| 23 | usage () { |
| 24 | echo "Usage: $0 [OPTION]..." 1>&2 |
| 25 | echo "Disconnect lttng markers" 1>&2 |
| 26 | echo "" 1>&2 |
| 27 | echo "Options:" 1>&2 |
| 28 | printf "\t-q Quiet mode, suppress output\n" 1>&2 |
| 29 | printf "\t-h Print this help\n" 1>&2 |
| 30 | echo "" 1>&2 |
| 31 | } |
| 32 | |
| 33 | if [ "$(id -u)" != "0" ]; then |
| 34 | echo "Error: This script needs to be run as root." 1>&2 |
| 35 | exit 1; |
| 36 | fi |
| 37 | |
| 38 | if [ ! "${DEBUGFSROOT}" ]; then |
| 39 | echo "Error: debugfs not mounted" 1>&2 |
| 40 | exit 1; |
| 41 | fi |
| 42 | |
| 43 | if [ ! -d "${MARKERSROOT}" ]; then |
| 44 | echo "Error: LTT trace controller not found (did you compile and load LTTng?)" 1>&2 |
| 45 | exit 1; |
| 46 | fi |
| 47 | |
| 48 | while getopts "qh" options; do |
| 49 | case ${options} in |
| 50 | q) QUIET="0";; |
| 51 | h) usage; |
| 52 | exit 0;; |
| 53 | \?) usage; |
| 54 | exit 1;; |
| 55 | esac |
| 56 | done |
| 57 | shift $((${OPTIND} - 1)) |
| 58 | |
| 59 | (eval "find '${MARKERSROOT}' -name metadata -prune -o -name enable -print") | while read -r marker; do |
| 60 | grep "^1$" "${marker}" -q |
| 61 | if [ $? -ne 0 ]; then |
| 62 | continue |
| 63 | fi |
| 64 | if [ ! ${QUIET} ]; then |
| 65 | echo "Disconnecting ${marker%/enable}" |
| 66 | fi |
| 67 | echo 0 > ${marker} |
| 68 | done |
| 69 | |
| 70 | #Unload the kernel modules |
| 71 | for i in ${EXTRAMODULES}; do |
| 72 | rmmod $i 2> /dev/null |
| 73 | done |
| 74 | for i in ${DEFAULTMODULES}; do |
| 75 | rmmod $i |
| 76 | done |
| 77 | |