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#!/bin/bash
# record weak terms
# SPDX-License-Identifier: GPL-2.0
# Test that command line options override weak terms from sysfs or inbuilt json.
set -e
shelldir=$(dirname "$0")
# shellcheck source=lib/setup_python.sh
. "${shelldir}"/lib/setup_python.sh
# Find the first event with a specified period, such as
# "cpu_core/event=0x24,period=200003,umask=0xff/"
event=$(perf list --json | $PYTHON -c '
import json, sys
for e in json.load(sys.stdin):
if "EventName" not in e or "/modifier" in e["EventName"]:
continue
if "Encoding" in e and "period=" in e["Encoding"]:
print(e["EventName"])
break
')
if [[ "$event" = "" ]]
then
echo "Skip: No sysfs/json events with inbuilt period."
exit 2
fi
echo "Testing that for $event the period is overridden with 1000"
perf list --detail "$event"
if ! perf record -c 1000 -vv -e "$event" -o /dev/null true 2>&1 | \
grep -q -F '{ sample_period, sample_freq } 1000'
then
echo "Fail: Unexpected verbose output and sample period"
exit 1
fi
echo "Success"
exit 0
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