-#!/bin/bash
# Copyright (C) 2009 Benjamin Poirier
+# Copyright (C) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-DEBUGFSROOT=$(grep ^debugfs /proc/mounts | head -1 | awk '{print $2}')
+DEBUGFSROOT=$(awk '{if ($3 == "debugfs") print $2}' /proc/mounts | head -n 1)
MARKERSROOT=${DEBUGFSROOT}/ltt/markers
+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"
+EXTRAMODULES="lockdep-trace net-extended-trace"
usage () {
- echo "Usage: $0 [OPTION]..." > /dev/stderr
- echo "Disconnect lttng markers" > /dev/stderr
- echo "" > /dev/stderr
- echo "Options:" > /dev/stderr
- printf "\t-q Quiet mode, suppress output\n" > /dev/stderr
- printf "\t-h Print this help\n" > /dev/stderr
- echo "" > /dev/stderr
+ echo "Usage: $0 [OPTION]..." 1>&2
+ echo "Disconnect lttng markers" 1>&2
+ echo "" 1>&2
+ echo "Options:" 1>&2
+ printf "\t-q Quiet mode, suppress output\n" 1>&2
+ printf "\t-h Print this help\n" 1>&2
+ echo "" 1>&2
}
-if [ ! "$DEBUGFSROOT" ]; then
- echo "Error: debugfs not mounted" > /dev/stderr
+if [ "$(id -u)" != "0" ]; then
+ echo "Error: This script needs to be run as root." 1>&2
exit 1;
fi
-if [ ! -d "$MARKERSROOT" ]; then
- echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr
+if [ ! "${DEBUGFSROOT}" ]; then
+ echo "Error: debugfs not mounted" 1>&2
+ exit 1;
+fi
+
+if [ ! -d "${MARKERSROOT}" ]; then
+ echo "Error: LTT trace controller not found (did you compile and load LTTng?)" 1>&2
exit 1;
fi
while getopts "qh" options; do
- case $options in
+ case ${options} in
q) QUIET="0";;
h) usage;
exit 0;;
exit 1;;
esac
done
-shift $(($OPTIND - 1))
+shift $((${OPTIND} - 1))
-while read -r -d $'\0' marker; do
- grep "^1$" "$marker" -q
+(eval "find '${MARKERSROOT}' -name metadata -prune -o -name enable -print") | while read -r marker; do
+ grep "^1$" "${marker}" -q
if [ $? -ne 0 ]; then
continue
fi
- if [ ! $QUIET ]; then
+ if [ ! ${QUIET} ]; then
echo "Disconnecting ${marker%/enable}"
fi
- echo 0 > $marker
-done < <(eval "find '$MARKERSROOT' -name metadata -prune -o -name enable -print0")
+ echo 0 > ${marker}
+done
+
+#Unload the kernel modules
+for i in ${EXTRAMODULES}; do
+ rmmod $i 2> /dev/null
+done
+for i in ${DEFAULTMODULES}; do
+ rmmod $i
+done
+