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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
DBGFS=/sys/kernel/debug/damon
if [ $EUID -ne 0 ];
then
echo "Run as root"
exit $ksft_skip
fi
if [ ! -d "$DBGFS" ]
then
echo "$DBGFS not found"
exit $ksft_skip
fi
for f in attrs target_ids monitor_on
do
if [ ! -f "$DBGFS/$f" ]
then
echo "$f not found"
exit 1
fi
done
permission_error="Operation not permitted"
for f in attrs target_ids monitor_on
do
status=$( cat "$DBGFS/$f" 2>&1 )
if [ "${status#*$permission_error}" != "$status" ]; then
echo "Permission for reading $DBGFS/$f denied; maybe secureboot enabled?"
exit $ksft_skip
fi
done
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