1#!/bin/bash 2# Copyright (C) 2016 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16# We want to generate two device tree blob (.dtb) files by combining 17# the "base" and "add" device tree source (.dts) files in two 18# different ways. 19# 20# 1) Use /include/ and compile via dtc to make the "gold standard" 21# 22# 2) Compile them separately dtc, and join them with the 23# ufdt_apply_overlay program 24# 25# Then, compare 1) and 2) with dts_diff (diff merged nodes) and return 0 26# iff they are identical. 27 28SCRIPT_DIR="$(dirname "$(readlink -f "$0")")" 29source ${SCRIPT_DIR}/common.sh 30 31on_exit() { 32 rm -rf "$TEMP_DIR" 33} 34 35# Constants 36IN_DATA_DIR="testdata" 37 38TEMP_DIR=`mktemp -d` 39# The script will exit directly if any command fails. 40set -e 41trap on_exit EXIT 42 43# Global variables 44TESTCASE_NAME=$1 45BASE_DTS="$IN_DATA_DIR/${TESTCASE_NAME}-base.dts" 46OVERLAY_DTS="$IN_DATA_DIR/${TESTCASE_NAME}-overlay.dts" 47REF_MERGED_DTS="$TEMP_DIR/${TESTCASE_NAME}-ref-merged.dts" 48OVL_MERGED_DTS="$TEMP_DIR/${TESTCASE_NAME}-ovl-merged.dts" 49 50# 51# Complie and diff 52# 53$SCRIPT_DIR/apply_overlay.sh --fdt "$BASE_DTS" "$OVERLAY_DTS" "$REF_MERGED_DTS" 54$SCRIPT_DIR/apply_overlay.sh --ufdt "$BASE_DTS" "$OVERLAY_DTS" "$OVL_MERGED_DTS" 55dts_diff "$REF_MERGED_DTS" "$OVL_MERGED_DTS" 56