selftests/ftrace: Add tracing/error_log testcase

#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: ftrace - test tracing error log support

fail() { #msg

    echo $1

    exit_fail

}

# event tracing is currently the only ftrace tracer that uses the

# tracing error_log, hence this check

if [ ! -f set_event ]; then

    echo "event tracing is not supported"

    exit_unsupported

fi

ftrace_errlog_check 'event filter parse error' '((sig >= 10 && sig < 15) || dsig ^== 17) && comm != bash' 'events/signal/signal_generate/filter'

exit 0