1#!/bin/bash 2# 3# Copyright 2019 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17if [[ ${#@} != 1 ]]; then 18 cat <<EOF 19Usage 20 host_bcp <image> | xargs <art-host-tool> ... 21Extracts boot class path locations from <image> and outputs the appropriate 22 --runtime-arg -Xbootclasspath:... 23 --runtime-arg -Xbootclasspath-locations:... 24arguments for many ART host tools based on the \$ANDROID_PRODUCT_OUT variable 25and existing \$ANDROID_PRODUCT_OUT/apex/* paths. 26EOF 27 exit 1 28fi 29 30IMAGE=$1 31 32if [[ ! -e ${IMAGE} ]]; then 33 IMAGE=${ANDROID_PRODUCT_OUT}/$1 34 if [[ ! -e ${IMAGE} ]]; then 35 echo "Neither $1 nor ${ANDROID_PRODUCT_OUT}/$1 exists." 36 exit 1 37 fi 38fi 39BCPL=`grep -az -A1 -E '^bootclasspath$' ${IMAGE} 2>/dev/null | \ 40 xargs -0 echo | gawk '{print $2}'` 41if [[ "x${BCPL}" == "x" ]]; then 42 echo "Failed to extract boot class path locations from $1." 43 exit 1 44fi 45 46APEX_INFO_LIST=${ANDROID_PRODUCT_OUT}/apex/apex-info-list.xml 47if [[ ! -e ${APEX_INFO_LIST} ]]; then 48 echo "Failed to locate apex info at ${APEX_INFO_LIST}." 49 exit 1 50fi 51 52BCP= 53OLD_IFS=${IFS} 54IFS=: 55APEX_PREFIX=/apex/ 56for COMPONENT in ${BCPL}; do 57 HEAD=${ANDROID_PRODUCT_OUT} 58 TAIL=${COMPONENT} 59 # Apex module paths aren't symlinked on the host, so map from the symbolic 60 # device path to the prebuilt (host) module path using the apex info table. 61 if [[ ${COMPONENT:0:${#APEX_PREFIX}} = ${APEX_PREFIX} ]]; then 62 # First extract the symbolic module name and its (internal) jar path. 63 COMPONENT=${COMPONENT#${APEX_PREFIX}} 64 MODULE_NAME=${COMPONENT%%/*} 65 MODULE_JAR=${COMPONENT#*/} 66 # Use the module name to look up the preinstalled module path.. 67 HOST_MODULE=`xmllint --xpath "string(//apex-info[@moduleName=\"${MODULE_NAME}\"]/@preinstalledModulePath)" ${APEX_INFO_LIST}` 68 # Extract the preinstalled module name from the full path (strip prefix/suffix). 69 HOST_MODULE_NAME=${HOST_MODULE#*${APEX_PREFIX}} 70 HOST_MODULE_NAME=${HOST_MODULE_NAME%.*apex} 71 # Rebuild the host path using the preinstalled module name. 72 TAIL="${APEX_PREFIX}${HOST_MODULE_NAME}/${MODULE_JAR}" 73 fi 74 if [[ ! -e $HEAD$TAIL ]]; then 75 echo "File does not exist: $HEAD$TAIL" 76 exit 1 77 fi 78 BCP="${BCP}:${HEAD}${TAIL}" 79done 80IFS=${OLD_IFS} 81BCP=${BCP:1} # Strip leading ':'. 82 83echo --runtime-arg -Xbootclasspath:${BCP} \ 84 --runtime-arg -Xbootclasspath-locations:${BCPL} 85