#!/bin/sh# perf script tests# SPDX-License-Identifier: GPL-2.0 set -e temp_dir=$(mktemp -d /tmp/perf-test-script.XXXXXXXXXX) perfdatafile="${temp_dir}/perf.data"db_test="${temp_dir}/db_test.py" err=0 cleanup(){	trap - EXIT TERM INT	sane=$(echo "${temp_dir}" | cut -b 1-21)	if [ "${sane}" = "/tmp/perf-test-script" ] ; then		echo "--- Cleaning up ---"		rm -f "${temp_dir}/"*		rmdir "${temp_dir}"	fi} trap_cleanup(){	cleanup	exit 1} trap trap_cleanup EXIT TERM INT  test_db(){	echo "DB test" 	# Check if python script is supported        if perf version --build-options | grep python | grep -q OFF ; then		echo "SKIP: python scripting is not supported"		err=2		return	fi 	cat << "_end_of_file_" > "${db_test}"perf_db_export_mode = Trueperf_db_export_calls = Falseperf_db_export_callchains = True def sample_table(*args):    print(f'sample_table({args})') def call_path_table(*args):    print(f'call_path_table({args}')_end_of_file_	case $(uname -m)	in s390x)		cmd_flags="--call-graph dwarf -e cpu-clock";;	*)		cmd_flags="-g";;	esac 	perf record $cmd_flags -o "${perfdatafile}" true	perf script -i "${perfdatafile}" -s "${db_test}"	echo "DB test [Success]"} test_db cleanup exit $err