tools/android/run_module_app/build_apk.sh - 3p/openxla/iree - Git at Google


            
            #!/bin/bash

            
            # Copyright 2020 The IREE Authors

            
            #

            
            # Licensed under the Apache License v2.0 with LLVM Exceptions.

            
            # See https://llvm.org/LICENSE.txt for license information.

            
            # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception


            set -e


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

            
            # Script input parameters

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


            echo "=== A script for building iree-run-module apk ==="

            
            echo "This script wraps iree-run-module together with a"

            
            echo "specific IREE VM module and invocation information."

            
            echo ""

            
            echo "At a minimum, it expects the following env vars:"

            
            echo "* ANDROID_SDK_ROOT"

            
            echo "* ANDROID_NDK_ROOT"

            
            echo "* ANDROID_SDK_BUILD_TOOLS_VERSION"

            
            echo "See the script for details and more controls."

            
            echo "===-------------------------------------------==="

            
            echo ""


            print_usage_and_exit() {

            
              echo "Usage: $0 <artifact-directory> "

            
              echo "       --device <device>"

            
              echo "       --module <input-module-file> "

            
              echo "       --function <entry-function> "

            
              echo "       --inputs_file <input-buffer-file> "

            
              exit 1

            
            }


            while (( "$#" )); do

            
              case "$1" in

            
                --device)

            
                  if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then

            
                    IREE_DEVICE=$2

            
                    shift 2

            
                  else

            
                    echo "Error: missing argument for $1" >&2

            
                    print_usage_and_exit

            
                  fi

            
                  ;;

            
                --module)

            
                  if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then

            
                    IREE_INPUT_MODULE_FILE=$(readlink -f $2)

            
                    shift 2

            
                  else

            
                    echo "Error: missing argument for $1" >&2

            
                    print_usage_and_exit

            
                  fi

            
                  ;;

            
                --function)

            
                  if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then

            
                    IREE_ENTRY_FUNCTION=$2

            
                    shift 2

            
                  else

            
                    echo "Error: missing argument for $1" >&2

            
                    print_usage_and_exit

            
                  fi

            
                  ;;

            
                --inputs_file)

            
                  if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then

            
                    IREE_INPUT_BUFFER_FILE=$(readlink -f $2)

            
                    shift 2

            
                  else

            
                    echo "Error: missing argument for $1" >&2

            
                    print_usage_and_exit

            
                  fi

            
                  ;;

            
                -*|--*=) # Unsupported flags

            
                  echo "Error: Unsupported flag $1" >&2

            
                  exit 1

            
                  ;;

            
                *) # Positional arguments

            
                  if [[ -z "${IREE_ARTIFACT_ROOT+x}" ]]; then

            
                    IREE_ARTIFACT_ROOT=$(readlink -f $1)

            
                  else

            
                    echo "Error: <artifact-directory> already set to ${IREE_ARTIFACT_ROOT}" >&2

            
                    print_usage_and_exit

            
                  fi

            
                  shift

            
                  ;;

            
              esac

            
            done


            if [[ -z "${IREE_ARTIFACT_ROOT}" ]] || [[ -z "${IREE_INPUT_MODULE_FILE}" ]] || \

            
               [[ -z "${IREE_ENTRY_FUNCTION}" ]] || [[ -z "${IREE_INPUT_BUFFER_FILE}" ]] || \

            
               [[ -z "${IREE_DEVICE}" ]]; then

            
              echo "Error: missing necessary parameters" >&2

            
              print_usage_and_exit

            
            fi


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

            
            # IREE Android app configurations

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


            # The final Android APK name; default to "iree-run-module.apk".

            
            IREE_APK_NAME="${IREE_APK_NAME:-iree-run-module}"

            
            # The CMAKE build type for compiling IREE. default to Release.

            
            IREE_BUILD_TYPE="${IREE_BUILD_TYPE:-Release}"

            
            # The target Android API level; default to Android 10 (API level 29).

            
            IREE_ANDROID_API_LEVEL="${IREE_ANDROID_API_LEVEL:-29}"

            
            # The target Android platform ABI; default to arm64-v8a.

            
            IREE_ANDROID_ABI="${IREE_ANDROID_ABI:-arm64-v8a}"


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

            
            # Android SDK/NDK configurations

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


            # Android SDK root; must be provided as environment variable.

            
            # By default Android Studio uses

            
            # * $HOME/Android/Sdk for Linux.

            
            # * $HOME/Library/Android/sdk for macOS.

            
            # * $%LOCALAPPDATA%\Android\sdk for Windows.

            
            ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT:?environment variable not set}"

            
            # Android NDK root; must be provided as environment variable.

            
            ANDROID_NDK_ROOT="${ANDROID_NDK_ROOT:?environment variable not set}"

            
            # Android SDK build tools version; must be provided as environment variable.

            
            ANDROID_SDK_BUILD_TOOLS_VERSION="${ANDROID_SDK_BUILD_TOOLS_VERSION?environment variable not set}"

            
            # Key store for signing apk files; default to Android debug keystore created

            
            # by Android Studio.

            
            ANDROID_KEYSTORE="${ANDROID_KEYSTORE:-${HOME}/.android/debug.keystore}"


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

            
            # IREE build toolchain

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


            CMAKE_BIN="${CMAKE_BIN:-$(which cmake)}"

            
            NINJA_BIN="${NINJA_BIN:-$(which ninja)}"

            
            CC_BIN="${CC_BIN:-$(which clang)}"

            
            CXX_BIN="${CXX_BIN:-$(which clang++)}"

            
            JAVAC_BIN="${JAVAC_BIN:-$(which javac)}"


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

            
            # IREE source/artifact directories

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


            # IREE project source root.

            
            IREE_SOURCE_ROOT="$(git rev-parse --show-toplevel)"

            
            # iree-run-module Android app source root.

            
            IREE_NATIVE_APP_SOURCE_ROOT="${IREE_SOURCE_ROOT?}/tools/android/run_module_app"


            # Directory for IREE native code intermediate intermediate artifacts.

            
            IREE_NATIVE_LIB_BUILD_DIR="${IREE_ARTIFACT_ROOT?}/iree/${IREE_BUILD_TYPE?}"

            
            # Directory for holding APK parts.

            
            IREE_APK_PARTS_DIR="${IREE_ARTIFACT_ROOT?}/parts"

            
            # Directory for IREE native libraries.

            
            IREE_NATIVE_LIB_DIR="${IREE_APK_PARTS_DIR?}/libs/lib/${IREE_ANDROID_ABI?}"

            
            # Directory for Android app assets.

            
            IREE_ASSET_DIR="${IREE_APK_PARTS_DIR?}/assets"

            
            # Directory for Android app R.class.

            
            IREE_RESOURCE_GEN_DIR="${IREE_APK_PARTS_DIR?}/rclass"


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

            
            # Android build toolchain

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


            ANDROID_SDK_BUILD_TOOLS_DIR="${ANDROID_SDK_ROOT?}/build-tools/${ANDROID_SDK_BUILD_TOOLS_VERSION?}"

            
            ANDROID_SDK_PLATFORMS_DIR="${ANDROID_SDK_ROOT?}/platforms/android-${IREE_ANDROID_API_LEVEL?}"


            AAPT_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/aapt"

            
            DX_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/dx"

            
            ZIPALIGN_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/zipalign"

            
            APKSIGNER_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/apksigner"


            AAPT_ADD="${AAPT_BIN?} add"

            
            # Link in the Android framework classes and disable compression for IREE

            
            # bytecode modules. This allows us to mmap the file directly.

            
            AAPT_PACK="${AAPT_BIN?} package -f -I ${ANDROID_SDK_PLATFORMS_DIR?}/android.jar -0 vmfb"

            
            DX="${DX_BIN?} --dex"

            
            ZIPALIGN="${ZIPALIGN_BIN?} -f -p 4"

            
            APKSIGN="${APKSIGNER_BIN?} sign"

            
            JAVAC="${JAVAC_BIN?} -classpath ${ANDROID_SDK_PLATFORMS_DIR?}/android.jar -sourcepath ${IREE_RESOURCE_GEN_DIR?} -d ${IREE_APK_PARTS_DIR?}"


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

            
            # Build IREE native libraries

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


            mkdir -p "${IREE_NATIVE_LIB_BUILD_DIR?}"


            echo ">>> Building IREE native libraries <<<"


            IREE_NATIVE_LIB_NAME=iree_tools_android_run_module_app_iree_run_module_app


            pushd "${IREE_NATIVE_LIB_BUILD_DIR?}"

            
            "${CMAKE_BIN?}" "${IREE_SOURCE_ROOT?}" -G Ninja \

            
              -DCMAKE_BUILD_TYPE="${IREE_BUILD_TYPE?}" \

            
              -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK_ROOT?}/build/cmake/android.toolchain.cmake" \

            
              -DANDROID_ABI="${IREE_ANDROID_ABI?}" \

            
              -DANDROID_PLATFORM="android-${IREE_ANDROID_API_LEVEL?}" \

            
              -DIREE_HOST_C_COMPILER="${CC_BIN?}" \

            
              -DIREE_HOST_CXX_COMPILER="${CXX_BIN?}" \

            
              -DIREE_BUILD_COMPILER=OFF \

            
              -DIREE_BUILD_TESTS=OFF \

            
              -DIREE_BUILD_SAMPLES=OFF

            
            "${NINJA_BIN?}" "${IREE_NATIVE_LIB_NAME?}"

            
            popd


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

            
            # Package Android app

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


            # Clean artifacts from previous runs.

            
            rm -rf "${IREE_ARTIFACT_ROOT?}/${IREE_APK_NAME?}.apk" "${IREE_APK_PARTS_DIR?}"


            echo ">>> Generating AndroidManifest.xml <<<"


            # Create an AndroidManifest.xml with proper target SDK version.

            
            mkdir -p "${IREE_APK_PARTS_DIR?}"

            
            IREE_ANDROID_API_LEVEL="${IREE_ANDROID_API_LEVEL?}" envsubst \

            
              < "${IREE_NATIVE_APP_SOURCE_ROOT?}/AndroidManifest.xml.template" \

            
              > "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml"


            echo ">>> Preparing shared libraries and vm module information <<<"


            # Find the compiled iree_run_module_app shared library and symlink it to a

            
            # known location for packaging.

            
            mkdir -p "${IREE_NATIVE_LIB_DIR?}"

            
            IREE_NATIVE_LIB=$(find ${IREE_NATIVE_LIB_BUILD_DIR?} -name "lib${IREE_NATIVE_LIB_NAME?}.so")

            
            # Note: the target link name must match with

            
            # run_module_app/AndroidManifest.xml.template.

            
            ln -sf "${IREE_NATIVE_LIB?}" "${IREE_NATIVE_LIB_DIR?}/libiree_run_module_app.so"


            # Copy the VM FlatBuffer and iree-run-module invocation related information

            
            # over as assets.

            
            mkdir -p "${IREE_ASSET_DIR?}"

            
            # Note: the following files must match with run_module_app/src/main.cc.

            
            cp "${IREE_INPUT_MODULE_FILE?}" "${IREE_ASSET_DIR?}/module.vmfb"

            
            cp "${IREE_INPUT_BUFFER_FILE?}" "${IREE_ASSET_DIR?}/inputs.txt"

            
            echo -n "${IREE_ENTRY_FUNCTION?}" > "${IREE_ASSET_DIR?}/entry_function.txt"

            
            echo -n "${IREE_DEVICE?}" > "${IREE_ASSET_DIR?}/device.txt"


            echo ">>> Compiling app resources <<<"


            # Generate the R.java for resources.

            
            mkdir -p "${IREE_RESOURCE_GEN_DIR?}"

            
            ${AAPT_PACK?} --non-constant-id -m \

            
              -M "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml" \

            
              -S "${IREE_NATIVE_APP_SOURCE_ROOT?}/res" \

            
              -J "${IREE_RESOURCE_GEN_DIR?}" \

            
              --generate-dependencies


            # Compile the R.java and create classes.dex out of it for Android.

            
            echo "Using javac: '${JAVAC_BIN?}'"

            
            ${JAVAC?} "${IREE_RESOURCE_GEN_DIR?}"/com/iree-org/iree/run_module/*.java

            
            ${DX?} --output="${IREE_APK_PARTS_DIR?}/classes.dex" "${IREE_APK_PARTS_DIR?}"


            echo ">>> Packaging apk file <<<"


            # Package assets and shared libraries into an apk file.

            
            ${AAPT_PACK?} -m \

            
              -M "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml" \

            
              -S "${IREE_NATIVE_APP_SOURCE_ROOT?}/res" \

            
              -A "${IREE_APK_PARTS_DIR?}/assets" \

            
              -F "${IREE_APK_PARTS_DIR?}/${IREE_APK_NAME?}.unaligned.apk" \

            
              --shared-lib "${IREE_APK_PARTS_DIR?}/libs"


            pushd "${IREE_APK_PARTS_DIR?}"

            
            # Also package the resources into the apk file.

            
            ${AAPT_ADD?} "${IREE_APK_NAME?}.unaligned.apk" classes.dex

            
            echo ">>> Aligning apk file <<<"

            
            ${ZIPALIGN?} "${IREE_APK_NAME?}.unaligned.apk" "${IREE_APK_NAME?}.apk"

            
            echo ">>> Signing apk file <<<"

            
            echo "NOTE: if you are using the Android Studio's debug keystore, the password is 'android'."

            
            ${APKSIGN?} --ks "${ANDROID_KEYSTORE?}" --min-sdk-version 28 "${IREE_APK_NAME?}.apk"

            
            mv "${IREE_APK_NAME?}.apk" "${IREE_ARTIFACT_ROOT?}"

            
            popd


            echo ">>> Done: '${IREE_ARTIFACT_ROOT?}/${IREE_APK_NAME?}.apk' <<<"
	#!/bin/bash
	# Copyright 2020 The IREE Authors
	#
	# Licensed under the Apache License v2.0 with LLVM Exceptions.
	# See https://llvm.org/LICENSE.txt for license information.
	# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

	set -e

	#########################
	# Script input parameters
	#########################

	echo "=== A script for building iree-run-module apk ==="
	echo "This script wraps iree-run-module together with a"
	echo "specific IREE VM module and invocation information."
	echo ""
	echo "At a minimum, it expects the following env vars:"
	echo "* ANDROID_SDK_ROOT"
	echo "* ANDROID_NDK_ROOT"
	echo "* ANDROID_SDK_BUILD_TOOLS_VERSION"
	echo "See the script for details and more controls."
	echo "===-------------------------------------------==="
	echo ""

	print_usage_and_exit() {
	echo "Usage: $0 <artifact-directory> "
	echo " --device <device>"
	echo " --module <input-module-file> "
	echo " --function <entry-function> "
	echo " --inputs_file <input-buffer-file> "
	exit 1
	}

	while (( "$#" )); do
	case "$1" in
	--device)
	if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then
	IREE_DEVICE=$2
	shift 2
	else
	echo "Error: missing argument for $1" >&2
	print_usage_and_exit
	fi
	;;
	--module)
	if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then
	IREE_INPUT_MODULE_FILE=$(readlink -f $2)
	shift 2
	else
	echo "Error: missing argument for $1" >&2
	print_usage_and_exit
	fi
	;;
	--function)
	if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then
	IREE_ENTRY_FUNCTION=$2
	shift 2
	else
	echo "Error: missing argument for $1" >&2
	print_usage_and_exit
	fi
	;;
	--inputs_file)
	if [[ -n "$2" ]] && [[ ${2:0:1} != "-" ]]; then
	IREE_INPUT_BUFFER_FILE=$(readlink -f $2)
	shift 2
	else
	echo "Error: missing argument for $1" >&2
	print_usage_and_exit
	fi
	;;
	-\|--=) # Unsupported flags
	echo "Error: Unsupported flag $1" >&2
	exit 1
	;;
	*) # Positional arguments
	if [[ -z "${IREE_ARTIFACT_ROOT+x}" ]]; then
	IREE_ARTIFACT_ROOT=$(readlink -f $1)
	else
	echo "Error: <artifact-directory> already set to ${IREE_ARTIFACT_ROOT}" >&2
	print_usage_and_exit
	fi
	shift
	;;
	esac
	done

	if [[ -z "${IREE_ARTIFACT_ROOT}" ]] \|\| [[ -z "${IREE_INPUT_MODULE_FILE}" ]] \|\| \
	[[ -z "${IREE_ENTRY_FUNCTION}" ]] \|\| [[ -z "${IREE_INPUT_BUFFER_FILE}" ]] \|\| \
	[[ -z "${IREE_DEVICE}" ]]; then
	echo "Error: missing necessary parameters" >&2
	print_usage_and_exit
	fi

	#################################
	# IREE Android app configurations
	#################################

	# The final Android APK name; default to "iree-run-module.apk".
	IREE_APK_NAME="${IREE_APK_NAME:-iree-run-module}"
	# The CMAKE build type for compiling IREE. default to Release.
	IREE_BUILD_TYPE="${IREE_BUILD_TYPE:-Release}"
	# The target Android API level; default to Android 10 (API level 29).
	IREE_ANDROID_API_LEVEL="${IREE_ANDROID_API_LEVEL:-29}"
	# The target Android platform ABI; default to arm64-v8a.
	IREE_ANDROID_ABI="${IREE_ANDROID_ABI:-arm64-v8a}"

	################################
	# Android SDK/NDK configurations
	################################

	# Android SDK root; must be provided as environment variable.
	# By default Android Studio uses
	# * $HOME/Android/Sdk for Linux.
	# * $HOME/Library/Android/sdk for macOS.
	# * $%LOCALAPPDATA%\Android\sdk for Windows.
	ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT:?environment variable not set}"
	# Android NDK root; must be provided as environment variable.
	ANDROID_NDK_ROOT="${ANDROID_NDK_ROOT:?environment variable not set}"
	# Android SDK build tools version; must be provided as environment variable.
	ANDROID_SDK_BUILD_TOOLS_VERSION="${ANDROID_SDK_BUILD_TOOLS_VERSION?environment variable not set}"
	# Key store for signing apk files; default to Android debug keystore created
	# by Android Studio.
	ANDROID_KEYSTORE="${ANDROID_KEYSTORE:-${HOME}/.android/debug.keystore}"

	######################
	# IREE build toolchain
	######################

	CMAKE_BIN="${CMAKE_BIN:-$(which cmake)}"
	NINJA_BIN="${NINJA_BIN:-$(which ninja)}"
	CC_BIN="${CC_BIN:-$(which clang)}"
	CXX_BIN="${CXX_BIN:-$(which clang++)}"
	JAVAC_BIN="${JAVAC_BIN:-$(which javac)}"

	##################################
	# IREE source/artifact directories
	##################################

	# IREE project source root.
	IREE_SOURCE_ROOT="$(git rev-parse --show-toplevel)"
	# iree-run-module Android app source root.
	IREE_NATIVE_APP_SOURCE_ROOT="${IREE_SOURCE_ROOT?}/tools/android/run_module_app"

	# Directory for IREE native code intermediate intermediate artifacts.
	IREE_NATIVE_LIB_BUILD_DIR="${IREE_ARTIFACT_ROOT?}/iree/${IREE_BUILD_TYPE?}"
	# Directory for holding APK parts.
	IREE_APK_PARTS_DIR="${IREE_ARTIFACT_ROOT?}/parts"
	# Directory for IREE native libraries.
	IREE_NATIVE_LIB_DIR="${IREE_APK_PARTS_DIR?}/libs/lib/${IREE_ANDROID_ABI?}"
	# Directory for Android app assets.
	IREE_ASSET_DIR="${IREE_APK_PARTS_DIR?}/assets"
	# Directory for Android app R.class.
	IREE_RESOURCE_GEN_DIR="${IREE_APK_PARTS_DIR?}/rclass"

	#########################
	# Android build toolchain
	#########################

	ANDROID_SDK_BUILD_TOOLS_DIR="${ANDROID_SDK_ROOT?}/build-tools/${ANDROID_SDK_BUILD_TOOLS_VERSION?}"
	ANDROID_SDK_PLATFORMS_DIR="${ANDROID_SDK_ROOT?}/platforms/android-${IREE_ANDROID_API_LEVEL?}"

	AAPT_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/aapt"
	DX_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/dx"
	ZIPALIGN_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/zipalign"
	APKSIGNER_BIN="${ANDROID_SDK_BUILD_TOOLS_DIR?}/apksigner"

	AAPT_ADD="${AAPT_BIN?} add"
	# Link in the Android framework classes and disable compression for IREE
	# bytecode modules. This allows us to mmap the file directly.
	AAPT_PACK="${AAPT_BIN?} package -f -I ${ANDROID_SDK_PLATFORMS_DIR?}/android.jar -0 vmfb"
	DX="${DX_BIN?} --dex"
	ZIPALIGN="${ZIPALIGN_BIN?} -f -p 4"
	APKSIGN="${APKSIGNER_BIN?} sign"
	JAVAC="${JAVAC_BIN?} -classpath ${ANDROID_SDK_PLATFORMS_DIR?}/android.jar -sourcepath ${IREE_RESOURCE_GEN_DIR?} -d ${IREE_APK_PARTS_DIR?}"

	#############################
	# Build IREE native libraries
	#############################

	mkdir -p "${IREE_NATIVE_LIB_BUILD_DIR?}"

	echo ">>> Building IREE native libraries <<<"

	IREE_NATIVE_LIB_NAME=iree_tools_android_run_module_app_iree_run_module_app

	pushd "${IREE_NATIVE_LIB_BUILD_DIR?}"
	"${CMAKE_BIN?}" "${IREE_SOURCE_ROOT?}" -G Ninja \
	-DCMAKE_BUILD_TYPE="${IREE_BUILD_TYPE?}" \
	-DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK_ROOT?}/build/cmake/android.toolchain.cmake" \
	-DANDROID_ABI="${IREE_ANDROID_ABI?}" \
	-DANDROID_PLATFORM="android-${IREE_ANDROID_API_LEVEL?}" \
	-DIREE_HOST_C_COMPILER="${CC_BIN?}" \
	-DIREE_HOST_CXX_COMPILER="${CXX_BIN?}" \
	-DIREE_BUILD_COMPILER=OFF \
	-DIREE_BUILD_TESTS=OFF \
	-DIREE_BUILD_SAMPLES=OFF
	"${NINJA_BIN?}" "${IREE_NATIVE_LIB_NAME?}"
	popd

	#####################
	# Package Android app
	#####################

	# Clean artifacts from previous runs.
	rm -rf "${IREE_ARTIFACT_ROOT?}/${IREE_APK_NAME?}.apk" "${IREE_APK_PARTS_DIR?}"

	echo ">>> Generating AndroidManifest.xml <<<"

	# Create an AndroidManifest.xml with proper target SDK version.
	mkdir -p "${IREE_APK_PARTS_DIR?}"
	IREE_ANDROID_API_LEVEL="${IREE_ANDROID_API_LEVEL?}" envsubst \
	< "${IREE_NATIVE_APP_SOURCE_ROOT?}/AndroidManifest.xml.template" \
	> "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml"

	echo ">>> Preparing shared libraries and vm module information <<<"

	# Find the compiled iree_run_module_app shared library and symlink it to a
	# known location for packaging.
	mkdir -p "${IREE_NATIVE_LIB_DIR?}"
	IREE_NATIVE_LIB=$(find ${IREE_NATIVE_LIB_BUILD_DIR?} -name "lib${IREE_NATIVE_LIB_NAME?}.so")
	# Note: the target link name must match with
	# run_module_app/AndroidManifest.xml.template.
	ln -sf "${IREE_NATIVE_LIB?}" "${IREE_NATIVE_LIB_DIR?}/libiree_run_module_app.so"

	# Copy the VM FlatBuffer and iree-run-module invocation related information
	# over as assets.
	mkdir -p "${IREE_ASSET_DIR?}"
	# Note: the following files must match with run_module_app/src/main.cc.
	cp "${IREE_INPUT_MODULE_FILE?}" "${IREE_ASSET_DIR?}/module.vmfb"
	cp "${IREE_INPUT_BUFFER_FILE?}" "${IREE_ASSET_DIR?}/inputs.txt"
	echo -n "${IREE_ENTRY_FUNCTION?}" > "${IREE_ASSET_DIR?}/entry_function.txt"
	echo -n "${IREE_DEVICE?}" > "${IREE_ASSET_DIR?}/device.txt"

	echo ">>> Compiling app resources <<<"

	# Generate the R.java for resources.
	mkdir -p "${IREE_RESOURCE_GEN_DIR?}"
	${AAPT_PACK?} --non-constant-id -m \
	-M "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml" \
	-S "${IREE_NATIVE_APP_SOURCE_ROOT?}/res" \
	-J "${IREE_RESOURCE_GEN_DIR?}" \
	--generate-dependencies

	# Compile the R.java and create classes.dex out of it for Android.
	echo "Using javac: '${JAVAC_BIN?}'"
	${JAVAC?} "${IREE_RESOURCE_GEN_DIR?}"/com/iree-org/iree/run_module/*.java
	${DX?} --output="${IREE_APK_PARTS_DIR?}/classes.dex" "${IREE_APK_PARTS_DIR?}"

	echo ">>> Packaging apk file <<<"

	# Package assets and shared libraries into an apk file.
	${AAPT_PACK?} -m \
	-M "${IREE_APK_PARTS_DIR?}/AndroidManifest.xml" \
	-S "${IREE_NATIVE_APP_SOURCE_ROOT?}/res" \
	-A "${IREE_APK_PARTS_DIR?}/assets" \
	-F "${IREE_APK_PARTS_DIR?}/${IREE_APK_NAME?}.unaligned.apk" \
	--shared-lib "${IREE_APK_PARTS_DIR?}/libs"

	pushd "${IREE_APK_PARTS_DIR?}"
	# Also package the resources into the apk file.
	${AAPT_ADD?} "${IREE_APK_NAME?}.unaligned.apk" classes.dex
	echo ">>> Aligning apk file <<<"
	${ZIPALIGN?} "${IREE_APK_NAME?}.unaligned.apk" "${IREE_APK_NAME?}.apk"
	echo ">>> Signing apk file <<<"
	echo "NOTE: if you are using the Android Studio's debug keystore, the password is 'android'."
	${APKSIGN?} --ks "${ANDROID_KEYSTORE?}" --min-sdk-version 28 "${IREE_APK_NAME?}.apk"
	mv "${IREE_APK_NAME?}.apk" "${IREE_ARTIFACT_ROOT?}"
	popd

	echo ">>> Done: '${IREE_ARTIFACT_ROOT?}/${IREE_APK_NAME?}.apk' <<<"