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 28 SCRIPT_DIR="$(dirname "$(readlink -f "$0")")" 29 source ${SCRIPT_DIR}/common.sh 30 31 on_exit() { 32 rm -rf "$TEMP_DIR" 33 } 34 35 # Constants 36 IN_DATA_DIR="testdata" 37 38 TEMP_DIR=`mktemp -d` 39 # The script will exit directly if any command fails. 40 set -e 41 trap on_exit EXIT 42 43 # Global variables 44 TESTCASE_NAME=$1 45 BASE_DTS="$IN_DATA_DIR/${TESTCASE_NAME}-base.dts" 46 OVERLAY_DTS="$IN_DATA_DIR/${TESTCASE_NAME}-overlay.dts" 47 REF_MERGED_DTS="$TEMP_DIR/${TESTCASE_NAME}-ref-merged.dts" 48 OVL_MERGED_DTS="$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" 55 dts_diff "$REF_MERGED_DTS" "$OVL_MERGED_DTS" 56
