# 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 -n 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-tracer ltt-relay 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"
usage () {
- echo "Usage: $0 [OPTION]..." > /dev/stderr
- echo "Connect lttng markers" > /dev/stderr
- echo "" > /dev/stderr
- echo "Options:" > /dev/stderr
- printf "\t-l Also activate locking markers (high traffic)\n" > /dev/stderr
- printf "\t-n Also activate detailed network markers (large size)\n" > /dev/stderr
- echo "" > /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: $0 [OPTION]..." 1>&2
+ echo "Connect lttng markers" 1>&2
+ echo "" 1>&2
+ echo "Options:" 1>&2
+ printf "\t-l Also activate locking markers (high traffic)\n" 1>&2
+ printf "\t-n Also activate detailed network markers (large size)\n" 1>&2
+ printf "\t-i Also activate input subsystem events (security implication: records keyboard inputs)\n" 1>&2
+ echo "" 1>&2
+ printf "\t-q Quiet mode, suppress output\n" 1>&2
+ printf "\t-h Print this help\n" 1>&2
+ echo "" 1>&2
}
+if [ "$(id -u)" != "0" ]; then
+ echo "Error: This script needs to be run as root." 1>&2
+ exit 1;
+fi
+
if [ ! "${DEBUGFSROOT}" ]; then
- echo "Error: debugfs not mounted" > /dev/stderr
+ echo "Error: debugfs not mounted" 1>&2
exit 1;
fi
if [ ! -d "${MARKERSROOT}" ]; then
- echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr
- exit 1;
+ #Try loading the kernel modules first
+ for i in ${DEFAULTMODULES}; do
+ modprobe $i
+ done
+ if [ ! -d "${MARKERSROOT}" ]; then
+ echo "Error: LTT trace controller not found (did you compile and load LTTng?)" 1>&2
+ exit 1;
+ fi
fi
while getopts "lnqh" options; do
l) LOCKING="0";;
n) NETWORK="0";;
q) QUIET="0";;
+ i) INPUT="0";;
h) usage;
exit 0;;
\?) usage;
if [ ! ${LOCKING} ]; then
TESTS="${TESTS} -name lockdep -prune -o -name locking -prune -o"
+else
+ modprobe lockdep-trace
fi
if [ ! ${NETWORK} ]; then
TESTS="${TESTS} -path '*/net/*_extended' -prune -o"
+else
+ modprobe net-extended-trace
+fi
+
+if [ ! ${INPUT} ]; then
+ TESTS="${TESTS} -name input -prune -o"
fi
-(eval "find '${MARKERSROOT}' ${TESTS} -name metadata -prune -o -name enable -print0") | while read -r -d $'\0' marker; do
+(eval "find '${MARKERSROOT}' ${TESTS} -name metadata -prune -o -name enable -print") | while read -r marker; do
if [ ! ${QUIET} ]; then
echo "Connecting ${marker%/enable}"
fi