name : test_data_symbol.sh #!/bin/bash # Test data symbol # SPDX-License-Identifier: GPL-2.0 # Leo Yan <leo.yan@linaro.org>, 2022 shelldir=$(dirname "$0") # shellcheck source=lib/waiting.sh . "${shelldir}"/lib/waiting.sh # shellcheck source=lib/perf_has_symbol.sh . "${shelldir}"/lib/perf_has_symbol.sh skip_if_no_mem_event() { perf mem record -e list 2>&1 | grep -E -q 'available' && return 0 return 2 } skip_if_no_mem_event || exit 2 skip_test_missing_symbol buf1 TEST_PROGRAM="perf test -w datasym" PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) ERR_FILE=$(mktemp /tmp/__perf_test.stderr.XXXXX) check_result() { # The memory report format is as below: # 99.92% ... [.] buf1+0x38 result=$(perf mem report -i ${PERF_DATA} -s symbol_daddr -q 2>&1 | awk '/buf1/ { print $4 }') # Testing is failed if has no any sample for "buf1" [ -z "$result" ] && return 1 while IFS= read -r line; do # The "data1" and "data2" fields in structure "buf1" have # offset "0x0" and "0x38", returns failure if detect any # other offset value. if [ "$line" != "buf1+0x0" ] && [ "$line" != "buf1+0x38" ]; then return 1 fi done <<< "$result" return 0 } cleanup_files() { echo "Cleaning up files..." rm -f ${PERF_DATA} } trap cleanup_files exit term int echo "Recording workload..." # perf mem/c2c internally uses IBS PMU on AMD CPU which doesn't support # user/kernel filtering and per-process monitoring, spin program on # specific CPU and test in per-CPU mode. is_amd=$(grep -E -c 'vendor_id.*AuthenticAMD' /proc/cpuinfo) if (($is_amd >= 1)); then perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}" & else perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}" & fi PERFPID=$! wait_for_perf_to_start ${PERFPID} "${ERR_FILE}" sleep 1 kill $PERFPID wait $PERFPID check_result exit $?