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 16PROG_NAME=`basename $0` 17 18# Set to true to get more debug information 19DEBUG=false 20# Remove the comment to enable valgrind 21# Require build with $mmma external/valgrind 22#VALGRIND="valgrind --leak-check=yes --show-reachable=yes" 23 24function usage() { 25 echo "Usage:" 26 echo " $PROG_NAME (--fdt|--ufdt) (--remote) <Base DTS> <Overlay DTS> <Output DTS>" 27} 28 29function on_exit() { 30 rm -rf "$TEMP_DIR" 31} 32 33# 34# Start 35# 36 37# Setup OVERLAY 38if [ "$1" == "--fdt" ]; then 39 shift 40 OVERLAY="fdt_apply_overlay" 41elif [ "$1" == "--ufdt" ]; then 42 shift 43 OVERLAY="ufdt_apply_overlay" 44else 45 usage 46 exit 1 47fi 48 49# --remote: run overlay on the device with adb 50if [ "$1" == "--remote" ]; then 51 shift 52 EXE_PATH="${ANDROID_PRODUCT_OUT}/obj/EXECUTABLES" 53 REMOTE_PATH="/data/local/tmp" 54 adb push "${EXE_PATH}/${OVERLAY}_intermediates/${OVERLAY}" \ 55 "$REMOTE_PATH" > /dev/null 56fi 57 58if [[ $# -lt 3 ]]; then 59 usage 60 exit 1 61fi 62 63BASE_DTS=$1 64OVERLAY_DTS=$2 65OUT_DTS=$3 66 67TEMP_DIR=`mktemp -d` 68# The script will exit directly if any command fails. 69set -e 70trap on_exit EXIT 71 72# Compile the *-base.dts to make *-base.dtb 73BASE_DTS_NAME=`basename "$BASE_DTS"` 74BASE_DTB_NAME="${BASE_DTS_NAME}-base.dtb" 75BASE_DTB="${TEMP_DIR}/${BASE_DTB_NAME}" 76dtc -@ -qq -O dtb -o "$BASE_DTB" "$BASE_DTS" 77if $DEBUG; then 78 echo "[base.dts]" 79 dtc -O dts "$BASE_DTB" 80fi 81 82# Compile the *-overlay.dts to make *-overlay.dtb 83OVERLAY_DTS_NAME=`basename "$OVERLAY_DTS"` 84OVERLAY_DTB_NAME="${OVERLAY_DTS_NAME}-overlay.dtb" 85OVERLAY_DTB="${TEMP_DIR}/${OVERLAY_DTB_NAME}" 86dtc -@ -qq -O dtb -o "$OVERLAY_DTB" "$OVERLAY_DTS" 87if $DEBUG; then 88 echo "[overlay.dts]" 89 dtc -O dts "$OVERLAY_DTB" 90fi 91 92# Run ufdt_apply_overlay to combine *-base.dtb and *-overlay.dtb 93# into *-merged.dtb 94MERGED_DTB_NAME="${BASE_DTS_NAME}-merged.dtb" 95MERGED_DTB="${TEMP_DIR}/${MERGED_DTB_NAME}" 96if [ -z "$REMOTE_PATH" ]; then 97 $VALGRIND "$OVERLAY" "$BASE_DTB" "$OVERLAY_DTB" "$MERGED_DTB" 98else 99 adb push "$BASE_DTB" "$REMOTE_PATH" > /dev/null 100 adb push "$OVERLAY_DTB" "$REMOTE_PATH" > /dev/null 101 adb shell " 102 cd "$REMOTE_PATH" && 103 "./${OVERLAY}" "$BASE_DTB_NAME" "$OVERLAY_DTB_NAME" "$MERGED_DTB_NAME" 104 " 105 adb pull "${REMOTE_PATH}/${MERGED_DTB_NAME}" "$MERGED_DTB" > /dev/null 106fi 107 108if [ ! -z "$REMOTE_PATH" ]; then 109 # clean up 110 adb shell " 111 cd "$REMOTE_PATH" && 112 rm -f "$OVERLAY" && 113 rm -f "$BASE_DTB_NAME" && 114 rm -f "$OVERLAY_DTB_NAME" && 115 rm -f "$MERGED_DTB_NAME" 116 " > /dev/null 117fi 118 119# Dump 120dtc -s -O dts -o "$OUT_DTS" "$MERGED_DTB" 121if $DEBUG; then 122 echo "[merged.dts]" 123 cat $OUT_DTS 124fi 125