test/etc/default-build - LeafOS-Project/android_art - Gitiles

 #!/bin/bash
 #
 # Copyright (C) 2008 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.

 # Stop if something fails.
 set -e

 if [[ $# -le 0 ]]; then
   echo 'Error:' '$0 should have the parameters from the "build" script forwarded to it' >&2
   echo 'Error: An example of how do it correctly is ./default-build "$@"'
   exit 1
 fi

 # Set default values for directories.
 if [ -d smali ]; then
   HAS_SMALI=true
 else
   HAS_SMALI=false
 fi

 # .j files in jasmin get compiled into classes.jar
 if [ -d jasmin ]; then
   HAS_JASMIN=true
 else
   HAS_JASMIN=false
 fi

 if [ -d src ]; then
   HAS_SRC=true
 else
   HAS_SRC=false
 fi

 # .java files in src-art get compiled with libcore on the bootclasspath
 if [ -d src-art ]; then
   HAS_SRC_ART=true
 else
   HAS_SRC_ART=false
 fi

 if [ -d src2 ]; then
   HAS_SRC2=true
 else
   HAS_SRC2=false
 fi

 if [ -d src-multidex ]; then
   HAS_SRC_MULTIDEX=true
 else
   HAS_SRC_MULTIDEX=false
 fi

 if [ -d smali-multidex ]; then
   HAS_SMALI_MULTIDEX=true
 else
   HAS_SMALI_MULTIDEX=false
 fi

 # .j files in jasmin-multidex get compiled into classes2.jar
 if [ -d jasmin-multidex ]; then
   HAS_JASMIN_MULTIDEX=true
 else
   HAS_JASMIN_MULTIDEX=false
 fi

 if [ -d src-ex ]; then
   HAS_SRC_EX=true
 else
   HAS_SRC_EX=false
 fi

 if [ -d src-dex2oat-unresolved ]; then
   HAS_SRC_DEX2OAT_UNRESOLVED=true
 else
   HAS_SRC_DEX2OAT_UNRESOLVED=false
 fi

 if [ -f api-light-greylist.txt -o -f api-dark-greylist.txt -o -f api-blacklist.txt ]; then
   HAS_HIDDENAPI_SPEC=true
 else
   HAS_HIDDENAPI_SPEC=false
 fi

 # USE_HIDDENAPI=false run-test... will disable hiddenapi.
 if [ -z "${USE_HIDDENAPI}" ]; then
   USE_HIDDENAPI=true
 fi

 # DESUGAR=false run-test... will disable desugar.
 if [[ "$DESUGAR" == false ]]; then
   USE_DESUGAR=false
 fi

 # Allow overriding ZIP_COMPRESSION_METHOD with e.g. 'store'
 ZIP_COMPRESSION_METHOD="deflate"
 # Align every ZIP file made by calling $ZIPALIGN command?
 WITH_ZIP_ALIGN=false
 ZIP_ALIGN_BYTES="-1"

 DX_FLAGS="--min-sdk-version=24"
 DX_VM_FLAGS=""
 EXPERIMENTAL=""

 BUILD_MODE="target"
 DEV_MODE="no"

 # The key for default arguments if no experimental things are enabled.
 DEFAULT_EXPERIMENT="no-experiment"

 # Setup experimental flag mappings in a bash associative array.
 declare -A JACK_EXPERIMENTAL_ARGS
 JACK_EXPERIMENTAL_ARGS["agents"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
 JACK_EXPERIMENTAL_ARGS["default-methods"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
 JACK_EXPERIMENTAL_ARGS["lambdas"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
 JACK_EXPERIMENTAL_ARGS["method-handles"]="-D jack.java.source.version=1.7 -D jack.android.min-api-level=o-b1"
 JACK_EXPERIMENTAL_ARGS[${DEFAULT_EXPERIMENT}]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"

 declare -A SMALI_EXPERIMENTAL_ARGS
 SMALI_EXPERIMENTAL_ARGS["default-methods"]="--api 24"
 SMALI_EXPERIMENTAL_ARGS["method-handles"]="--api 26"
 SMALI_EXPERIMENTAL_ARGS["var-handles"]="--api 26"
 SMALI_EXPERIMENTAL_ARGS["agents"]="--api 26"

 declare -A JAVAC_EXPERIMENTAL_ARGS
 JAVAC_EXPERIMENTAL_ARGS["default-methods"]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS["lambdas"]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS["method-handles"]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS["parameter-annotations"]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS["var-handles"]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS[${DEFAULT_EXPERIMENT}]="-source 1.8 -target 1.8"
 JAVAC_EXPERIMENTAL_ARGS["agents"]="-source 1.8 -target 1.8"

 declare -A DX_EXPERIMENTAL_ARGS
 DX_EXPERIMENTAL_ARGS["method-handles"]="--min-sdk-version=26"
 DX_EXPERIMENTAL_ARGS["parameter-annotations"]="--min-sdk-version=25"
 DX_EXPERIMENTAL_ARGS["var-handles"]="--min-sdk-version=26"

 while true; do
   if [ "x$1" = "x--dx-option" ]; then
     shift
     option="$1"
     DX_FLAGS="${DX_FLAGS} $option"
     shift
   elif [ "x$1" = "x--dx-vm-option" ]; then
     shift
     option="$1"
     DX_VM_FLAGS="${DX_VM_FLAGS} $option"
     shift
   elif [ "x$1" = "x--no-src" ]; then
     HAS_SRC=false
     shift
   elif [ "x$1" = "x--no-src2" ]; then
     HAS_SRC2=false
     shift
   elif [ "x$1" = "x--no-src-multidex" ]; then
     HAS_SRC_MULTIDEX=false
     shift
   elif [ "x$1" = "x--no-smali-multidex" ]; then
     HAS_SMALI_MULTIDEX=false
     shift
   elif [ "x$1" = "x--no-src-ex" ]; then
     HAS_SRC_EX=false
     shift
   elif [ "x$1" = "x--no-smali" ]; then
     HAS_SMALI=false
     shift
   elif [ "x$1" = "x--experimental" ]; then
     shift
     # We have a specific experimental configuration so don't use the default.
     DEFAULT_EXPERIMENT=""
     EXPERIMENTAL="${EXPERIMENTAL} $1"
     shift
   elif [ "x$1" = "x--zip-compression-method" ]; then
     # Allow using different zip compression method, e.g. 'store'
     shift
     ZIP_COMPRESSION_METHOD="$1"
     shift
   elif [ "x$1" = "x--zip-align" ]; then
     # Align ZIP entries to some # of bytes.
     shift
     WITH_ZIP_ALIGN=true
     ZIP_ALIGN_BYTES="$1"
     shift
   elif [ "x$1" = "x--host" ]; then
     BUILD_MODE="host"
     shift
   elif [ "x$1" = "x--target" ]; then
     BUILD_MODE="target"
     shift
   elif [ "x$1" = "x--jvm" ]; then
     BUILD_MODE="jvm"
     shift
   elif [ "x$1" = "x--dev" ]; then
     DEV_MODE="yes"
     shift
   elif expr "x$1" : "x--" >/dev/null 2>&1; then
     echo "unknown $0 option: $1" 1>&2
     exit 1
   else
     break
   fi
 done

 if [[ $BUILD_MODE == jvm ]]; then
   # Does not need desugar on jvm because it supports the latest functionality.
   USE_DESUGAR=false
   # Do not attempt to build src-art directories on jvm, it would fail without libcore.
   HAS_SRC_ART=false
 fi

 # Be sure to get any default arguments if not doing any experiments.
 EXPERIMENTAL="${EXPERIMENTAL} ${DEFAULT_EXPERIMENT}"

 if [ "${JACK_SERVER}" = "false" ]; then
   # Run in single-threaded mode for the continuous buildbot.
   JACK_ARGS="${JACK_ARGS} -D sched.runner=single-threaded"
 else
   # Run with 4 threads to reduce memory footprint and thread contention.
   JACK_ARGS="${JACK_ARGS} -D sched.runner=multi-threaded"
   JACK_ARGS="${JACK_ARGS} -D sched.runner.thread.kind=fixed"
   JACK_ARGS="${JACK_ARGS} -D sched.runner.thread.fixed.count=4"
 fi

 # Add args from the experimental mappings.
 for experiment in ${EXPERIMENTAL}; do
   JACK_ARGS="${JACK_ARGS} ${JACK_EXPERIMENTAL_ARGS[${experiment}]}"
   SMALI_ARGS="${SMALI_ARGS} ${SMALI_EXPERIMENTAL_ARGS[${experiment}]}"
   JAVAC_ARGS="${JAVAC_ARGS} ${JAVAC_EXPERIMENTAL_ARGS[${experiment}]}"
   DX_FLAGS="${DX_FLAGS} ${DX_EXPERIMENTAL_ARGS[${experiment}]}"
 done

 #########################################

 # Catch all commands to 'ZIP' and prepend extra flags.
 # Optionally, zipalign results to some alignment.
 function zip() {
   local zip_target="$1"
   local entry_src="$2"
   shift 2

   command zip --compression-method "$ZIP_COMPRESSION_METHOD" "$zip_target" "$entry_src" "$@"

   if "$WITH_ZIP_ALIGN"; then
     # zipalign does not operate in-place, so write results to a temp file.
     local tmp_file="$(mktemp)"
     "$ZIPALIGN" -f "$ZIP_ALIGN_BYTES" "$zip_target" "$tmp_file"
     # replace original zip target with our temp file.
     mv "$tmp_file" "$zip_target"
   fi
 }

 function make_jasmin() {
   local out_directory="$1"
   shift
   local jasmin_sources=("$@")

   mkdir -p "$out_directory"

   if [[ $DEV_MODE == yes ]]; then
     echo ${JASMIN} -d "$out_directory" "${jasmin_sources[@]}"
     ${JASMIN} -d "$out_directory" "${jasmin_sources[@]}"
   else
     ${JASMIN} -d "$out_directory" "${jasmin_sources[@]}" >/dev/null
   fi
 }

 function desugar() {
   local desugar_args="--mode=$BUILD_MODE"

   if [[ $DEV_MODE == yes ]]; then
     desugar_args="$desugar_args --show-commands"
   fi

   "$DESUGAR" --core-only $desugar_args "$@"
 }

 # Like regular javac but may include libcore on the bootclasspath.
 function javac_with_bootclasspath {
   local helper_args="--mode=$BUILD_MODE"

   if [[ $DEV_MODE == yes ]]; then
     helper_args="$helper_args --show-commands"
   fi

   # build with libcore for host and target, or openjdk for jvm
   "$ANDROID_BUILD_TOP/art/tools/javac-helper.sh" --core-only $helper_args ${JAVAC_ARGS} "$@"
 }

 # Make a "dex" file given a directory of classes in $1.
 # Also calls desugar on the classes first to convert lambdas.
 function make_dex() {
   local name="$1"

   local dx_input
   if [[ "$USE_DESUGAR" == "true" ]]; then
     # Make a jar first so desugar doesn't need every .class file individually.
     jar cf "$name.before-desugar.jar" -C "$name" .

     dx_input="${name}.desugar.jar"

     # Make desugared JAR.
     desugar --input "$name.before-desugar.jar" --output "$dx_input"
   else
     dx_input="${name}"
   fi

   local dexer="${DX}"
   if [ ${USE_D8} = "true" ]; then
     dexer="${ANDROID_HOST_OUT}/bin/d8-compat-dx"
   fi

   # Make dex file from desugared JAR.
   ${dexer} -JXmx256m ${DX_VM_FLAGS} --debug --dex --dump-to=${name}.lst --output=${name}.dex --dump-width=1000 ${DX_FLAGS} "${dx_input}"
 }

 # Merge all the dex files in $1..$N into $1. Skip non-existing files, but at least 1 file must exist.
 function make_dexmerge() {
   # Dex file that acts as the destination.
   local dst_file="$1"

   # Dex files that act as the source.
   local dex_files_to_merge=()

   # Skip any non-existing files.
   while [[ $# -gt 0 ]]; do
     if [[ -e "$1" ]]; then
       dex_files_to_merge+=("$1")
     fi
     shift
   done

   # Skip merge if we are not merging anything. IE: input = output.
   if [[ "${#dex_files_to_merge[@]}" -eq "1" ]]; then
     local single_input=${dex_files_to_merge[0]}
     if [[ "$dst_file" != "$single_input" ]]; then
      mv "$single_input" "$dst_file";
      return
     fi
   fi

   # We assume the dexer did all the API level checks and just merge away.
   mkdir d8_merge_out
   ${DXMERGER} --min-api 1000 --output ./d8_merge_out "${dex_files_to_merge[@]}"

   if [[ -e "./d8_merge_out/classes2.dex" ]]; then
     echo "Cannot merge all dex files into a single dex"
     exit 1
   fi

   mv ./d8_merge_out/classes.dex "$dst_file";
   rmdir d8_merge_out
 }

 function make_hiddenapi() {
   local args=()
   while [[ $# -gt 0 ]]; do
     args+=("--dex=$1")
     shift
   done
   if [ -f api-light-greylist.txt ]; then
     args+=("--light-greylist=api-light-greylist.txt")
   fi
   if [ -f api-dark-greylist.txt ]; then
     args+=("--dark-greylist=api-dark-greylist.txt")
   fi
   if [ -f api-blacklist.txt ]; then
     args+=("--blacklist=api-blacklist.txt")
   fi
   ${HIDDENAPI} "${args[@]}"
 }

 # Print the directory name only if it exists.
 function maybe_dir() {
   local dirname="$1"
   if [[ -d "$dirname" ]]; then
     echo "$dirname"
   fi
 }

 if [ -e classes.dex ]; then
   zip $TEST_NAME.jar classes.dex
   exit 0
 fi

 # Helper function for a common test. Evaluate with $(has_mutlidex).
 function has_multidex() {
   echo [ ${HAS_SRC_MULTIDEX} = "true" \
          -o ${HAS_JASMIN_MULTIDEX} = "true" \
          -o ${HAS_SMALI_MULTIDEX} = "true" ]
 }

 if [ ${HAS_SRC_DEX2OAT_UNRESOLVED} = "true" ]; then
   mkdir -p classes
   mkdir classes-ex
   javac_with_bootclasspath -implicit:none -sourcepath src-dex2oat-unresolved -d classes `find src -name '*.java'`
   javac_with_bootclasspath -implicit:none -sourcepath src -d classes-ex `find src-dex2oat-unresolved -name '*.java'`
   if [ ${USE_JACK} = "true" ]; then
     jar cf classes.jill.jar -C classes .
     jar cf classes-ex.jill.jar -C classes-ex .

     ${JACK} --import classes-ex.jill.jar --output-dex .
     zip ${TEST_NAME}-ex.jar classes.dex
     ${JACK} --import classes.jill.jar --output-dex .
   else
     if [ ${NEED_DEX} = "true" ]; then
       make_dex classes-ex
       mv classes-ex.dex classes.dex   # rename it so it shows up as "classes.dex" in the zip file.
       zip ${TEST_NAME}-ex.jar classes.dex
       make_dex classes
     fi
   fi
 else
   if [ ${USE_JACK} = "true" ]; then
     # Jack toolchain
     if [[ "$HAS_SRC" == true || "$HAS_SRC_ART" == true ]]; then
       if [ "${HAS_SRC_MULTIDEX}" = "true" ]; then
         # Compile src and src-multidex in the same .jack file. We will apply multidex partitioning
         # when creating the output .dex file.
         ${JACK} ${JACK_ARGS} --output-jack src.jack $(maybe_dir src) src-multidex $(maybe_dir src-art)
         jack_extra_args="${jack_extra_args} -D jack.dex.output.policy=minimal-multidex"
         jack_extra_args="${jack_extra_args} -D jack.preprocessor=true"
         jack_extra_args="${jack_extra_args} -D jack.preprocessor.file=multidex.jpp"
       else
         ${JACK} ${JACK_ARGS} --output-jack src.jack $(maybe_dir src) $(maybe_dir src-art)
       fi
       jack_extra_args="${jack_extra_args} --import src.jack"
     fi

     if [ "${HAS_SRC2}" = "true" ]; then
       ${JACK} ${JACK_ARGS} --output-jack src2.jack src2
       # In case of duplicate classes, we want to take into account the classes from src2. Therefore
       # we apply the 'keep-first' policy and import src2.jack file *before* the src.jack file.
       jack_extra_args="${jack_extra_args} -D jack.import.type.policy=keep-first"
       jack_extra_args="--import src2.jack ${jack_extra_args}"
     fi

     # Compile jack files into a DEX file.
     if [ "${HAS_SRC}" = "true" ] || [ "${HAS_SRC2}" = "true" ] || [ "${HAS_SRC_ART}" = "true" ]; then
       ${JACK} ${JACK_ARGS} ${jack_extra_args} --output-dex .
     fi
   else
     # Legacy toolchain with javac+dx
     if [ "${HAS_SRC}" = "true" ]; then
       mkdir -p classes
       javac_with_bootclasspath -implicit:none -classpath src-multidex -d classes `find src -name '*.java'`
     fi

     if [ "${HAS_SRC_ART}" = "true" ]; then
       mkdir -p classes
       javac_with_bootclasspath -implicit:none -classpath src-multidex -d classes `find src-art -name '*.java'`
     fi

     if [ "${HAS_SRC_MULTIDEX}" = "true" ]; then
       mkdir classes2
       javac_with_bootclasspath -implicit:none -classpath src -d classes2 `find src-multidex -name '*.java'`
       if [ ${NEED_DEX} = "true" ]; then
         make_dex classes2
       fi
     fi

     if [ "${HAS_SRC2}" = "true" ]; then
       mkdir -p classes
       javac_with_bootclasspath -classpath classes -d classes `find src2 -name '*.java'`
     fi

     if [[ "${HAS_SRC}" == "true" || "${HAS_SRC2}" == "true" || "${HAS_SRC_ART}" == "true" ]]; then
       if [ ${NEED_DEX} = "true" ]; then
         make_dex classes
       fi
     fi
   fi
 fi

 if [[ "${HAS_JASMIN}" == true ]]; then
   # Compile Jasmin classes as if they were part of the classes.dex file.
   make_jasmin jasmin_classes $(find 'jasmin' -name '*.j')
   if [[ "${NEED_DEX}" == "true" ]]; then
     # Disable desugar because it won't handle intentional linkage errors.
     USE_DESUGAR=false make_dex jasmin_classes
     make_dexmerge classes.dex jasmin_classes.dex
   else
     # Move jasmin classes into classes directory so that they are picked up with -cp classes.
     mkdir -p classes
     mv jasmin_classes/* classes
   fi
 fi

 if [ "${HAS_SMALI}" = "true" -a ${NEED_DEX} = "true" ]; then
   # Compile Smali classes
   ${SMALI} -JXmx512m assemble ${SMALI_ARGS} --output smali_classes.dex `find smali -name '*.smali'`

   # Merge smali files into classes.dex, this takes priority over any jasmin files.
   make_dexmerge classes.dex smali_classes.dex
 fi

 # Compile Jasmin classes in jasmin-multidex as if they were part of the classes2.jar
 if [[ "$HAS_JASMIN_MULTIDEX" == true ]]; then
   make_jasmin jasmin_classes2 $(find 'jasmin-multidex' -name '*.j')

   if [[ "${NEED_DEX}" == "true" ]]; then
     # Disable desugar because it won't handle intentional linkage errors.
     USE_DESUGAR=false make_dex jasmin_classes2

     # Merge jasmin_classes2.dex into classes2.dex
     make_dexmerge classes2.dex jasmin_classes2.dex
   else
     # Move jasmin classes into classes2 directory so that they are picked up with -cp classes2.
     mkdir -p classes2
     mv jasmin_classes2/* classes2
   fi
 fi

 if [ "${HAS_SMALI_MULTIDEX}" = "true" -a ${NEED_DEX} = "true" ]; then
   # Compile Smali classes
   ${SMALI} -JXmx512m assemble ${SMALI_ARGS} --output smali_classes2.dex `find smali-multidex -name '*.smali'`

   # Merge smali_classes2.dex into classes2.dex
   make_dexmerge classes2.dex smali_classes2.dex
 fi


 if [ ${HAS_SRC_EX} = "true" ]; then
   if [ ${USE_JACK} = "true" ]; then
       # Rename previous "classes.dex" so it is not overwritten.
       mv classes.dex classes-1.dex
       #TODO find another way to append src.jack to the jack classpath
       ${JACK}:src.jack ${JACK_ARGS} --output-dex . src-ex
       zip $TEST_NAME-ex.jar classes.dex
       # Restore previous "classes.dex" so it can be zipped.
       mv classes-1.dex classes.dex
   else
     # Build src-ex into classes-ex.
     # Includes 'src', 'src-art' source when compiling classes-ex, but exclude their .class files.
     if [[ "${HAS_SRC}" == "true" ]]; then
       mkdir -p classes-tmp-for-ex
       javac_with_bootclasspath -d classes-tmp-for-ex `find src -name '*.java'`
       src_tmp_for_ex="-cp classes-tmp-for-ex"
     fi
     if [[ "${HAS_SRC_ART}" == "true" ]]; then
       mkdir -p classes-tmp-for-ex
       javac_with_bootclasspath -d classes-tmp-for-ex `find src-art -name '*.java'`
       src_tmp_for_ex="-cp classes-tmp-for-ex"
     fi
     mkdir classes-ex
     javac_with_bootclasspath -d classes-ex $src_tmp_for_ex `find src-ex -name '*.java'`
   fi
 fi

 if [[ -d classes-ex ]] && [ ${NEED_DEX} = "true" ]; then
   make_dex classes-ex

   # quick shuffle so that the stored name is "classes.dex"
   mv classes.dex classes-1.dex
   mv classes-ex.dex classes.dex
   zip $TEST_NAME-ex.jar classes.dex
   mv classes.dex classes-ex.dex
   mv classes-1.dex classes.dex
 fi

 # Apply hiddenapi on the dex files if the test has API list file(s).
 if [ ${NEED_DEX} = "true" -a ${USE_HIDDENAPI} = "true" -a ${HAS_HIDDENAPI_SPEC} = "true" ]; then
   if $(has_multidex); then
     make_hiddenapi classes.dex classes2.dex
   else
     make_hiddenapi classes.dex
   fi
 fi

 # Create a single dex jar with two dex files for multidex.
 if [ ${NEED_DEX} = "true" ]; then
   if $(has_multidex); then
     zip $TEST_NAME.jar classes.dex classes2.dex
   else
     zip $TEST_NAME.jar classes.dex
   fi
 fi
	#!/bin/bash
	#
	# Copyright (C) 2008 The Android Open Source Project
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	# Stop if something fails.
	set -e

	if [[ $# -le 0 ]]; then
	echo 'Error:' '$0 should have the parameters from the "build" script forwarded to it' >&2
	echo 'Error: An example of how do it correctly is ./default-build "$@"'
	exit 1
	fi

	# Set default values for directories.
	if [ -d smali ]; then
	HAS_SMALI=true
	else
	HAS_SMALI=false
	fi

	# .j files in jasmin get compiled into classes.jar
	if [ -d jasmin ]; then
	HAS_JASMIN=true
	else
	HAS_JASMIN=false
	fi

	if [ -d src ]; then
	HAS_SRC=true
	else
	HAS_SRC=false
	fi

	# .java files in src-art get compiled with libcore on the bootclasspath
	if [ -d src-art ]; then
	HAS_SRC_ART=true
	else
	HAS_SRC_ART=false
	fi

	if [ -d src2 ]; then
	HAS_SRC2=true
	else
	HAS_SRC2=false
	fi

	if [ -d src-multidex ]; then
	HAS_SRC_MULTIDEX=true
	else
	HAS_SRC_MULTIDEX=false
	fi

	if [ -d smali-multidex ]; then
	HAS_SMALI_MULTIDEX=true
	else
	HAS_SMALI_MULTIDEX=false
	fi

	# .j files in jasmin-multidex get compiled into classes2.jar
	if [ -d jasmin-multidex ]; then
	HAS_JASMIN_MULTIDEX=true
	else
	HAS_JASMIN_MULTIDEX=false
	fi

	if [ -d src-ex ]; then
	HAS_SRC_EX=true
	else
	HAS_SRC_EX=false
	fi

	if [ -d src-dex2oat-unresolved ]; then
	HAS_SRC_DEX2OAT_UNRESOLVED=true
	else
	HAS_SRC_DEX2OAT_UNRESOLVED=false
	fi

	if [ -f api-light-greylist.txt -o -f api-dark-greylist.txt -o -f api-blacklist.txt ]; then
	HAS_HIDDENAPI_SPEC=true
	else
	HAS_HIDDENAPI_SPEC=false
	fi

	# USE_HIDDENAPI=false run-test... will disable hiddenapi.
	if [ -z "${USE_HIDDENAPI}" ]; then
	USE_HIDDENAPI=true
	fi

	# DESUGAR=false run-test... will disable desugar.
	if [[ "$DESUGAR" == false ]]; then
	USE_DESUGAR=false
	fi

	# Allow overriding ZIP_COMPRESSION_METHOD with e.g. 'store'
	ZIP_COMPRESSION_METHOD="deflate"
	# Align every ZIP file made by calling $ZIPALIGN command?
	WITH_ZIP_ALIGN=false
	ZIP_ALIGN_BYTES="-1"

	DX_FLAGS="--min-sdk-version=24"
	DX_VM_FLAGS=""
	EXPERIMENTAL=""

	BUILD_MODE="target"
	DEV_MODE="no"

	# The key for default arguments if no experimental things are enabled.
	DEFAULT_EXPERIMENT="no-experiment"

	# Setup experimental flag mappings in a bash associative array.
	declare -A JACK_EXPERIMENTAL_ARGS
	JACK_EXPERIMENTAL_ARGS["agents"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
	JACK_EXPERIMENTAL_ARGS["default-methods"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
	JACK_EXPERIMENTAL_ARGS["lambdas"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
	JACK_EXPERIMENTAL_ARGS["method-handles"]="-D jack.java.source.version=1.7 -D jack.android.min-api-level=o-b1"
	JACK_EXPERIMENTAL_ARGS[${DEFAULT_EXPERIMENT}]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"

	declare -A SMALI_EXPERIMENTAL_ARGS
	SMALI_EXPERIMENTAL_ARGS["default-methods"]="--api 24"
	SMALI_EXPERIMENTAL_ARGS["method-handles"]="--api 26"
	SMALI_EXPERIMENTAL_ARGS["var-handles"]="--api 26"
	SMALI_EXPERIMENTAL_ARGS["agents"]="--api 26"

	declare -A JAVAC_EXPERIMENTAL_ARGS
	JAVAC_EXPERIMENTAL_ARGS["default-methods"]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS["lambdas"]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS["method-handles"]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS["parameter-annotations"]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS["var-handles"]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS[${DEFAULT_EXPERIMENT}]="-source 1.8 -target 1.8"
	JAVAC_EXPERIMENTAL_ARGS["agents"]="-source 1.8 -target 1.8"

	declare -A DX_EXPERIMENTAL_ARGS
	DX_EXPERIMENTAL_ARGS["method-handles"]="--min-sdk-version=26"
	DX_EXPERIMENTAL_ARGS["parameter-annotations"]="--min-sdk-version=25"
	DX_EXPERIMENTAL_ARGS["var-handles"]="--min-sdk-version=26"

	while true; do
	if [ "x$1" = "x--dx-option" ]; then
	shift
	option="$1"
	DX_FLAGS="${DX_FLAGS} $option"
	shift
	elif [ "x$1" = "x--dx-vm-option" ]; then
	shift
	option="$1"
	DX_VM_FLAGS="${DX_VM_FLAGS} $option"
	shift
	elif [ "x$1" = "x--no-src" ]; then
	HAS_SRC=false
	shift
	elif [ "x$1" = "x--no-src2" ]; then
	HAS_SRC2=false
	shift
	elif [ "x$1" = "x--no-src-multidex" ]; then
	HAS_SRC_MULTIDEX=false
	shift
	elif [ "x$1" = "x--no-smali-multidex" ]; then
	HAS_SMALI_MULTIDEX=false
	shift
	elif [ "x$1" = "x--no-src-ex" ]; then
	HAS_SRC_EX=false
	shift
	elif [ "x$1" = "x--no-smali" ]; then
	HAS_SMALI=false
	shift
	elif [ "x$1" = "x--experimental" ]; then
	shift
	# We have a specific experimental configuration so don't use the default.
	DEFAULT_EXPERIMENT=""
	EXPERIMENTAL="${EXPERIMENTAL} $1"
	shift
	elif [ "x$1" = "x--zip-compression-method" ]; then
	# Allow using different zip compression method, e.g. 'store'
	shift
	ZIP_COMPRESSION_METHOD="$1"
	shift
	elif [ "x$1" = "x--zip-align" ]; then
	# Align ZIP entries to some # of bytes.
	shift
	WITH_ZIP_ALIGN=true
	ZIP_ALIGN_BYTES="$1"
	shift
	elif [ "x$1" = "x--host" ]; then
	BUILD_MODE="host"
	shift
	elif [ "x$1" = "x--target" ]; then
	BUILD_MODE="target"
	shift
	elif [ "x$1" = "x--jvm" ]; then
	BUILD_MODE="jvm"
	shift
	elif [ "x$1" = "x--dev" ]; then
	DEV_MODE="yes"
	shift
	elif expr "x$1" : "x--" >/dev/null 2>&1; then
	echo "unknown $0 option: $1" 1>&2
	exit 1
	else
	break
	fi
	done

	if [[ $BUILD_MODE == jvm ]]; then
	# Does not need desugar on jvm because it supports the latest functionality.
	USE_DESUGAR=false
	# Do not attempt to build src-art directories on jvm, it would fail without libcore.
	HAS_SRC_ART=false
	fi

	# Be sure to get any default arguments if not doing any experiments.
	EXPERIMENTAL="${EXPERIMENTAL} ${DEFAULT_EXPERIMENT}"

	if [ "${JACK_SERVER}" = "false" ]; then
	# Run in single-threaded mode for the continuous buildbot.
	JACK_ARGS="${JACK_ARGS} -D sched.runner=single-threaded"
	else
	# Run with 4 threads to reduce memory footprint and thread contention.
	JACK_ARGS="${JACK_ARGS} -D sched.runner=multi-threaded"
	JACK_ARGS="${JACK_ARGS} -D sched.runner.thread.kind=fixed"
	JACK_ARGS="${JACK_ARGS} -D sched.runner.thread.fixed.count=4"
	fi

	# Add args from the experimental mappings.
	for experiment in ${EXPERIMENTAL}; do
	JACK_ARGS="${JACK_ARGS} ${JACK_EXPERIMENTAL_ARGS[${experiment}]}"
	SMALI_ARGS="${SMALI_ARGS} ${SMALI_EXPERIMENTAL_ARGS[${experiment}]}"
	JAVAC_ARGS="${JAVAC_ARGS} ${JAVAC_EXPERIMENTAL_ARGS[${experiment}]}"
	DX_FLAGS="${DX_FLAGS} ${DX_EXPERIMENTAL_ARGS[${experiment}]}"
	done

	#########################################

	# Catch all commands to 'ZIP' and prepend extra flags.
	# Optionally, zipalign results to some alignment.
	function zip() {
	local zip_target="$1"
	local entry_src="$2"
	shift 2

	command zip --compression-method "$ZIP_COMPRESSION_METHOD" "$zip_target" "$entry_src" "$@"

	if "$WITH_ZIP_ALIGN"; then
	# zipalign does not operate in-place, so write results to a temp file.
	local tmp_file="$(mktemp)"
	"$ZIPALIGN" -f "$ZIP_ALIGN_BYTES" "$zip_target" "$tmp_file"
	# replace original zip target with our temp file.
	mv "$tmp_file" "$zip_target"
	fi
	}

	function make_jasmin() {
	local out_directory="$1"
	shift
	local jasmin_sources=("$@")

	mkdir -p "$out_directory"

	if [[ $DEV_MODE == yes ]]; then
	echo ${JASMIN} -d "$out_directory" "${jasmin_sources[@]}"
	${JASMIN} -d "$out_directory" "${jasmin_sources[@]}"
	else
	${JASMIN} -d "$out_directory" "${jasmin_sources[@]}" >/dev/null
	fi
	}

	function desugar() {
	local desugar_args="--mode=$BUILD_MODE"

	if [[ $DEV_MODE == yes ]]; then
	desugar_args="$desugar_args --show-commands"
	fi

	"$DESUGAR" --core-only $desugar_args "$@"
	}

	# Like regular javac but may include libcore on the bootclasspath.
	function javac_with_bootclasspath {
	local helper_args="--mode=$BUILD_MODE"

	if [[ $DEV_MODE == yes ]]; then
	helper_args="$helper_args --show-commands"
	fi

	# build with libcore for host and target, or openjdk for jvm
	"$ANDROID_BUILD_TOP/art/tools/javac-helper.sh" --core-only $helper_args ${JAVAC_ARGS} "$@"
	}

	# Make a "dex" file given a directory of classes in $1.
	# Also calls desugar on the classes first to convert lambdas.
	function make_dex() {
	local name="$1"

	local dx_input
	if [[ "$USE_DESUGAR" == "true" ]]; then
	# Make a jar first so desugar doesn't need every .class file individually.
	jar cf "$name.before-desugar.jar" -C "$name" .

	dx_input="${name}.desugar.jar"

	# Make desugared JAR.
	desugar --input "$name.before-desugar.jar" --output "$dx_input"
	else
	dx_input="${name}"
	fi

	local dexer="${DX}"
	if [ ${USE_D8} = "true" ]; then
	dexer="${ANDROID_HOST_OUT}/bin/d8-compat-dx"
	fi

	# Make dex file from desugared JAR.
	${dexer} -JXmx256m ${DX_VM_FLAGS} --debug --dex --dump-to=${name}.lst --output=${name}.dex --dump-width=1000 ${DX_FLAGS} "${dx_input}"
	}

	# Merge all the dex files in $1..$N into $1. Skip non-existing files, but at least 1 file must exist.
	function make_dexmerge() {
	# Dex file that acts as the destination.
	local dst_file="$1"

	# Dex files that act as the source.
	local dex_files_to_merge=()

	# Skip any non-existing files.
	while [[ $# -gt 0 ]]; do
	if [[ -e "$1" ]]; then
	dex_files_to_merge+=("$1")
	fi
	shift
	done

	# Skip merge if we are not merging anything. IE: input = output.
	if [[ "${#dex_files_to_merge[@]}" -eq "1" ]]; then
	local single_input=${dex_files_to_merge[0]}
	if [[ "$dst_file" != "$single_input" ]]; then
	mv "$single_input" "$dst_file";
	return
	fi
	fi

	# We assume the dexer did all the API level checks and just merge away.
	mkdir d8_merge_out
	${DXMERGER} --min-api 1000 --output ./d8_merge_out "${dex_files_to_merge[@]}"

	if [[ -e "./d8_merge_out/classes2.dex" ]]; then
	echo "Cannot merge all dex files into a single dex"
	exit 1
	fi

	mv ./d8_merge_out/classes.dex "$dst_file";
	rmdir d8_merge_out
	}

	function make_hiddenapi() {
	local args=()
	while [[ $# -gt 0 ]]; do
	args+=("--dex=$1")
	shift
	done
	if [ -f api-light-greylist.txt ]; then
	args+=("--light-greylist=api-light-greylist.txt")
	fi
	if [ -f api-dark-greylist.txt ]; then
	args+=("--dark-greylist=api-dark-greylist.txt")
	fi
	if [ -f api-blacklist.txt ]; then
	args+=("--blacklist=api-blacklist.txt")
	fi
	${HIDDENAPI} "${args[@]}"
	}

	# Print the directory name only if it exists.
	function maybe_dir() {
	local dirname="$1"
	if [[ -d "$dirname" ]]; then
	echo "$dirname"
	fi
	}

	if [ -e classes.dex ]; then
	zip $TEST_NAME.jar classes.dex
	exit 0
	fi

	# Helper function for a common test. Evaluate with $(has_mutlidex).
	function has_multidex() {
	echo [ ${HAS_SRC_MULTIDEX} = "true" \
	-o ${HAS_JASMIN_MULTIDEX} = "true" \
	-o ${HAS_SMALI_MULTIDEX} = "true" ]
	}

	if [ ${HAS_SRC_DEX2OAT_UNRESOLVED} = "true" ]; then
	mkdir -p classes
	mkdir classes-ex
	javac_with_bootclasspath -implicit:none -sourcepath src-dex2oat-unresolved -d classes `find src -name '*.java'`
	javac_with_bootclasspath -implicit:none -sourcepath src -d classes-ex `find src-dex2oat-unresolved -name '*.java'`
	if [ ${USE_JACK} = "true" ]; then
	jar cf classes.jill.jar -C classes .
	jar cf classes-ex.jill.jar -C classes-ex .

	${JACK} --import classes-ex.jill.jar --output-dex .
	zip ${TEST_NAME}-ex.jar classes.dex
	${JACK} --import classes.jill.jar --output-dex .
	else
	if [ ${NEED_DEX} = "true" ]; then
	make_dex classes-ex
	mv classes-ex.dex classes.dex # rename it so it shows up as "classes.dex" in the zip file.
	zip ${TEST_NAME}-ex.jar classes.dex
	make_dex classes
	fi
	fi
	else
	if [ ${USE_JACK} = "true" ]; then
	# Jack toolchain
	if [[ "$HAS_SRC" == true \|\| "$HAS_SRC_ART" == true ]]; then
	if [ "${HAS_SRC_MULTIDEX}" = "true" ]; then
	# Compile src and src-multidex in the same .jack file. We will apply multidex partitioning
	# when creating the output .dex file.
	${JACK} ${JACK_ARGS} --output-jack src.jack $(maybe_dir src) src-multidex $(maybe_dir src-art)
	jack_extra_args="${jack_extra_args} -D jack.dex.output.policy=minimal-multidex"
	jack_extra_args="${jack_extra_args} -D jack.preprocessor=true"
	jack_extra_args="${jack_extra_args} -D jack.preprocessor.file=multidex.jpp"
	else
	${JACK} ${JACK_ARGS} --output-jack src.jack $(maybe_dir src) $(maybe_dir src-art)
	fi
	jack_extra_args="${jack_extra_args} --import src.jack"
	fi

	if [ "${HAS_SRC2}" = "true" ]; then
	${JACK} ${JACK_ARGS} --output-jack src2.jack src2
	# In case of duplicate classes, we want to take into account the classes from src2. Therefore
	# we apply the 'keep-first' policy and import src2.jack file before the src.jack file.
	jack_extra_args="${jack_extra_args} -D jack.import.type.policy=keep-first"
	jack_extra_args="--import src2.jack ${jack_extra_args}"
	fi

	# Compile jack files into a DEX file.
	if [ "${HAS_SRC}" = "true" ] \|\| [ "${HAS_SRC2}" = "true" ] \|\| [ "${HAS_SRC_ART}" = "true" ]; then
	${JACK} ${JACK_ARGS} ${jack_extra_args} --output-dex .
	fi
	else
	# Legacy toolchain with javac+dx
	if [ "${HAS_SRC}" = "true" ]; then
	mkdir -p classes
	javac_with_bootclasspath -implicit:none -classpath src-multidex -d classes `find src -name '*.java'`
	fi

	if [ "${HAS_SRC_ART}" = "true" ]; then
	mkdir -p classes
	javac_with_bootclasspath -implicit:none -classpath src-multidex -d classes `find src-art -name '*.java'`
	fi

	if [ "${HAS_SRC_MULTIDEX}" = "true" ]; then
	mkdir classes2
	javac_with_bootclasspath -implicit:none -classpath src -d classes2 `find src-multidex -name '*.java'`
	if [ ${NEED_DEX} = "true" ]; then
	make_dex classes2
	fi
	fi

	if [ "${HAS_SRC2}" = "true" ]; then
	mkdir -p classes
	javac_with_bootclasspath -classpath classes -d classes `find src2 -name '*.java'`
	fi

	if [[ "${HAS_SRC}" == "true" \|\| "${HAS_SRC2}" == "true" \|\| "${HAS_SRC_ART}" == "true" ]]; then
	if [ ${NEED_DEX} = "true" ]; then
	make_dex classes
	fi
	fi
	fi
	fi

	if [[ "${HAS_JASMIN}" == true ]]; then
	# Compile Jasmin classes as if they were part of the classes.dex file.
	make_jasmin jasmin_classes $(find 'jasmin' -name '*.j')
	if [[ "${NEED_DEX}" == "true" ]]; then
	# Disable desugar because it won't handle intentional linkage errors.
	USE_DESUGAR=false make_dex jasmin_classes
	make_dexmerge classes.dex jasmin_classes.dex
	else
	# Move jasmin classes into classes directory so that they are picked up with -cp classes.
	mkdir -p classes
	mv jasmin_classes/* classes
	fi
	fi

	if [ "${HAS_SMALI}" = "true" -a ${NEED_DEX} = "true" ]; then
	# Compile Smali classes
	${SMALI} -JXmx512m assemble ${SMALI_ARGS} --output smali_classes.dex `find smali -name '*.smali'`

	# Merge smali files into classes.dex, this takes priority over any jasmin files.
	make_dexmerge classes.dex smali_classes.dex
	fi

	# Compile Jasmin classes in jasmin-multidex as if they were part of the classes2.jar
	if [[ "$HAS_JASMIN_MULTIDEX" == true ]]; then
	make_jasmin jasmin_classes2 $(find 'jasmin-multidex' -name '*.j')

	if [[ "${NEED_DEX}" == "true" ]]; then
	# Disable desugar because it won't handle intentional linkage errors.
	USE_DESUGAR=false make_dex jasmin_classes2

	# Merge jasmin_classes2.dex into classes2.dex
	make_dexmerge classes2.dex jasmin_classes2.dex
	else
	# Move jasmin classes into classes2 directory so that they are picked up with -cp classes2.
	mkdir -p classes2
	mv jasmin_classes2/* classes2
	fi
	fi

	if [ "${HAS_SMALI_MULTIDEX}" = "true" -a ${NEED_DEX} = "true" ]; then
	# Compile Smali classes
	${SMALI} -JXmx512m assemble ${SMALI_ARGS} --output smali_classes2.dex `find smali-multidex -name '*.smali'`

	# Merge smali_classes2.dex into classes2.dex
	make_dexmerge classes2.dex smali_classes2.dex
	fi


	if [ ${HAS_SRC_EX} = "true" ]; then
	if [ ${USE_JACK} = "true" ]; then
	# Rename previous "classes.dex" so it is not overwritten.
	mv classes.dex classes-1.dex
	#TODO find another way to append src.jack to the jack classpath
	${JACK}:src.jack ${JACK_ARGS} --output-dex . src-ex
	zip $TEST_NAME-ex.jar classes.dex
	# Restore previous "classes.dex" so it can be zipped.
	mv classes-1.dex classes.dex
	else
	# Build src-ex into classes-ex.
	# Includes 'src', 'src-art' source when compiling classes-ex, but exclude their .class files.
	if [[ "${HAS_SRC}" == "true" ]]; then
	mkdir -p classes-tmp-for-ex
	javac_with_bootclasspath -d classes-tmp-for-ex `find src -name '*.java'`
	src_tmp_for_ex="-cp classes-tmp-for-ex"
	fi
	if [[ "${HAS_SRC_ART}" == "true" ]]; then
	mkdir -p classes-tmp-for-ex
	javac_with_bootclasspath -d classes-tmp-for-ex `find src-art -name '*.java'`
	src_tmp_for_ex="-cp classes-tmp-for-ex"
	fi
	mkdir classes-ex
	javac_with_bootclasspath -d classes-ex $src_tmp_for_ex `find src-ex -name '*.java'`
	fi
	fi

	if [[ -d classes-ex ]] && [ ${NEED_DEX} = "true" ]; then
	make_dex classes-ex

	# quick shuffle so that the stored name is "classes.dex"
	mv classes.dex classes-1.dex
	mv classes-ex.dex classes.dex
	zip $TEST_NAME-ex.jar classes.dex
	mv classes.dex classes-ex.dex
	mv classes-1.dex classes.dex
	fi

	# Apply hiddenapi on the dex files if the test has API list file(s).
	if [ ${NEED_DEX} = "true" -a ${USE_HIDDENAPI} = "true" -a ${HAS_HIDDENAPI_SPEC} = "true" ]; then
	if $(has_multidex); then
	make_hiddenapi classes.dex classes2.dex
	else
	make_hiddenapi classes.dex
	fi
	fi

	# Create a single dex jar with two dex files for multidex.
	if [ ${NEED_DEX} = "true" ]; then
	if $(has_multidex); then
	zip $TEST_NAME.jar classes.dex classes2.dex
	else
	zip $TEST_NAME.jar classes.dex
	fi
	fi