1#!/bin/bash
2# Test data symbol (exclusive)
3
4# SPDX-License-Identifier: GPL-2.0
5# Leo Yan <leo.yan@linaro.org>, 2022
6
7shelldir=$(dirname "$0")
8
9# shellcheck source=lib/perf_has_symbol.sh
10. "${shelldir}"/lib/perf_has_symbol.sh
11
12skip_if_no_mem_event() {
13	perf mem record -e list 2>&1 | grep -E -q 'available' && return 0
14	return 2
15}
16
17skip_if_no_mem_event || exit 2
18
19skip_test_missing_symbol workload_datasym_buf1
20
21TEST_PROGRAM="perf test -w datasym"
22PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
23ERR_FILE=$(mktemp /tmp/__perf_test.stderr.XXXXX)
24
25check_result() {
26	# The memory report format is as below:
27	#    99.92%  ...  [.] workload_datasym_buf1+0x38
28	result=$(perf mem report -i ${PERF_DATA} -s symbol_daddr -q 2>&1 |
29		 awk '/workload_datasym_buf1/ { print $4 }')
30
31	# Testing is failed if has no any sample for "workload_datasym_buf1"
32	[ -z "$result" ] && return 1
33
34	while IFS= read -r line; do
35		# The "data1" and "data2" fields in structure
36		# "workload_datasym_buf1" have offset "0x0" and "0x38", returns
37		# failure if detect any other offset value.
38		if [ "$line" != "workload_datasym_buf1+0x0" ] && \
39		   [ "$line" != "workload_datasym_buf1+0x38" ]; then
40			return 1
41		fi
42	done <<< "$result"
43
44	return 0
45}
46
47cleanup_files()
48{
49	echo "Cleaning up files..."
50	rm -f ${PERF_DATA}
51}
52
53trap cleanup_files exit term int
54
55echo "Recording workload..."
56
57# perf mem/c2c internally uses IBS PMU on AMD CPU which doesn't support
58# user/kernel filtering and per-process monitoring, spin program on
59# specific CPU and test in per-CPU mode.
60is_amd=$(grep -E -c 'vendor_id.*AuthenticAMD' /proc/cpuinfo)
61if (($is_amd >= 1)); then
62	perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}"
63else
64	perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}"
65fi
66
67check_result
68exit $?
69