clone-exec-bpftrace.sh

if [ -n "$EXEC" ];
then
	TYPE=$1
	BPFTRACE_OUT=$2

	if [ $TYPE == "run" ];
	then
		EXP_APP_NAME=$3 #
		TRACER_EB=$4 # Executor Binary

		killall -v -w bpftrace
		>&2 echo "Running clone and exec bpftrace probes"

		bpftrace -B 'line' probes-specs/execve-clone-probes.bt ${EXP_APP_NAME:0:15} $TRACER_EB > $BPFTRACE_OUT &
		BPFTRACER_PID=$!
		>&2 echo "BPFTracer PID=$BPFTRACER_PID"

		while [ $(wc -c "$BPFTRACE_OUT" | awk '{print $1}') -eq 0 ];
		do
			sleep 1
		done

		echo "$BPFTRACER_PID"
	elif [ $TYPE == "parse" ];
	then
		EXECID=$3
		EXEC_SUCCESS=$4
		BPFTRACER_PID=$5
		RESULTS_FILENAME=$6

		echo "Killing bpftracer with pid=$BPFTRACER_PID"
		kill -SIGINT $BPFTRACER_PID

		if [ $EXEC_SUCCESS -eq 0 ];
		then
			sleep 1
			sync
			set +e
			python -u probes-specs/execve-clone-parser-bpftrace.py $EXECID < $BPFTRACE_OUT >> $RESULTS_FILENAME
			set -e
		fi
	else
		echo "Cannot identify tracer behavior type [$TYPE]"
		exit 1
	fi
fi