tracing: Add new testcases for hist trigger parsing errors

#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: event trigger - test histogram parser errors

if [ ! -f set_event -o ! -d events/kmem ]; then

    echo "event tracing is not supported"

    exit_unsupported

fi

if [ ! -f events/kmem/kmalloc/trigger ]; then

    echo "event trigger is not supported"

    exit_unsupported

fi

if [ ! -f events/kmem/kmalloc/hist ]; then

    echo "hist trigger is not supported"

    exit_unsupported

fi

[ -f error_log ] || exit_unsupported

check_error() { # command-with-error-pos-by-^

    ftrace_errlog_check 'hist:kmem:kmalloc' "$1" 'events/kmem/kmalloc/trigger'

}

check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid,^junk'	# INVALID_SORT_FIELD

check_error 'hist:keys=common_pid:vals=bytes_req:^sort='		# EMPTY_ASSIGNMENT

check_error 'hist:keys=common_pid:vals=bytes_req:^sort=common_pid,'	# EMPTY_SORT_FIELD

check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid.^junk'	# INVALID_SORT_MODIFIER

check_error 'hist:keys=common_pid:vals=bytes_req,bytes_alloc:^sort=common_pid,bytes_req,bytes_alloc'	# TOO_MANY_SORT_FIELDS

exit 0