+ if [ -z "$channel_name" ]; then
+ # default channel if none specified
+ chan=""
+ else
+ chan="-c $channel_name"
+ fi
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$event_name" $chan -s $sess_name -k 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
+ ret=$?
+ if [[ $expected_to_fail -eq "1" ]]; then
+ test $ret -ne "0"
+ ok $? "Enable kernel event $event_name for session $session_name on channel $channel_name failed as expected"
+ else
+ ok $ret "Enable kernel event $event_name for session $sess_name"
+ fi
+}
+
+function enable_kernel_lttng_event_ok ()
+{
+ enable_kernel_lttng_event 0 "$@"
+}
+
+function enable_kernel_lttng_event_fail ()
+{
+ enable_kernel_lttng_event 1 "$@"
+}
+
+# Old interface
+function lttng_enable_kernel_event
+{
+ enable_kernel_lttng_event_ok "$@"
+}
+
+function lttng_enable_kernel_syscall()
+{
+ local expected_to_fail=$1
+ local sess_name=$2
+ local syscall_name=$3
+ local channel_name=$4
+
+ if [ -z $syscall_name ]; then
+ # Enable all event if no syscall name specified
+ syscall_name="-a"
+ fi
+
+ if [ -z $channel_name ]; then
+ # default channel if none specified
+ chan=""
+ else
+ chan="-c $channel_name"
+ fi
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event --syscall "$syscall_name" $chan -s $sess_name -k 1> $OUTPUT_DEST 2> $ERROR_OUTPUT_DEST
+ ret=$?
+ if [[ $expected_to_fail -eq "1" ]]; then
+ test $ret -ne "0"
+ ok $? "Enable kernel syscall $syscall_name for session $sess_name on channel $channel_name fail as expected"
+ else
+ ok $ret "Enable kernel syscall $syscall_name for session $sess_name on channel $channel_name"
+ fi
+}
+
+function lttng_enable_kernel_syscall_ok()
+{
+ lttng_enable_kernel_syscall 0 "$@"
+}
+
+function lttng_enable_kernel_syscall_fail()
+{
+ lttng_enable_kernel_syscall 1 "$@"
+}
+
+function lttng_disable_kernel_syscall()
+{
+ local expected_to_fail=$1
+ local sess_name=$2
+ local syscall_name=$3
+ local channel_name=$4
+
+ if [ -z $syscall_name ]; then
+ # Enable all event if no syscall name specified
+ syscall_name="-a"
+ fi
+