IVGCVSW-6776 Add Arm NN build-tool scripts
* Initial scripts which download and build Arm NN
dependencies (setup-armnn.sh) and build both
Arm NN and ACL (build-armnn.sh).
* Also added common.sh for handling common variables
between scripts and validation.sh for common
command line arg validation.
Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: I6a61149d048f618b4cc9770cc9dd6ec2e5f64ea5
diff --git a/build-tool/scripts/build-armnn.sh b/build-tool/scripts/build-armnn.sh
new file mode 100755
index 0000000..2b8217b
--- /dev/null
+++ b/build-tool/scripts/build-armnn.sh
@@ -0,0 +1,414 @@
+#!/bin/bash
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Script which builds Arm NN and ACL
+# setup-armnn.sh must be executed in the same directory, before running this script
+
+set -o nounset # Catch references to undefined variables.
+set -o pipefail # Catch non zero exit codes within pipelines.
+set -o errexit # Catch and propagate non zero exit codes.
+
+rel_path=$(dirname "$0") # relative path from where script is executed to script location
+
+build_acl()
+{
+ cd "$ACL_SRC"
+
+ local acl_params="neon=$flag_neon_backend opencl=$flag_cl_backend Werror=0 embed_kernels=1 examples=0 validation_tests=0 benchmark_tests=0 benchmark_examples=0"
+
+ if [ "$flag_debug" -eq 1 ]; then
+ acl_params="$acl_params debug=1 asserts=1"
+ fi
+
+ local native_flag=""
+ if [ "$NATIVE_BUILD" ]; then
+ native_flag="build=native"
+ fi
+
+ # Force -fPIC so that ACL is suitable for inclusion in Arm NN library
+ local extra_cxx_flags="extra_cxx_flags='-fPIC'"
+
+ local compile_flags=""
+ local acl_arch=""
+
+ case "$TARGET_ARCH" in
+ "aarch64")
+ compile_flags+="$AARCH64_COMPILER_FLAGS"
+ acl_arch="arch=arm64-v8a"
+ ;;
+
+ "aarch32")
+ compile_flags+="$AARCH32_COMPILER_FLAGS"
+ acl_arch="arch=armv7a"
+ ;;
+
+ "x86_64")
+ acl_arch="arch=x86_64"
+ ;;
+ esac
+
+ echo -e "\n***** Building ACL for $TARGET_ARCH *****"
+
+ if [ "$flag_clean" -eq 1 ]; then
+ echo -e "\n***** Clean flag detected: removing existing ACL build *****"
+ rm -rf "$ACL_BUILD_TARGET"
+ fi
+
+ mkdir -p "$ACL_BUILD_TARGET"
+
+ eval "$compile_flags" \
+ scons "$native_flag" \
+ "$acl_arch" \
+ "$acl_params" \
+ build_dir="$ACL_BUILD_TARGET" \
+ "$extra_cxx_flags" \
+ -j "$NUM_THREADS"
+
+ echo -e "\n***** Built ACL for $TARGET_ARCH *****"
+
+ return 0
+}
+
+build_armnn()
+{
+ mkdir -p "$ARMNN_BUILD_TARGET"
+ cd "$ARMNN_BUILD_TARGET"
+
+ local build_type="Release"
+ if [ "$flag_debug" -eq 1 ]; then
+ build_type="Debug"
+ fi
+
+ local compile_flags=""
+
+ case "$TARGET_ARCH" in
+ "aarch64")
+ compile_flags+="$AARCH64_COMPILER_FLAGS"
+ ;;
+
+ "aarch32")
+ compile_flags+="$AARCH32_COMPILER_FLAGS"
+ ;;
+ esac
+
+ if [ "$flag_clean" -eq 1 ]; then
+ echo -e "\n***** Clean flag detected: removing existing Arm NN build *****"
+ rm -rf "$ARMNN_BUILD_TARGET"
+ fi
+
+ echo -e "\n***** Building Arm NN for $TARGET_ARCH *****"
+
+ eval "$compile_flags" \
+ cmake -DCMAKE_BUILD_TYPE="$build_type" \
+ -DBUILD_ARMNN_TFLITE_DELEGATE="$flag_tflite_delegate" \
+ -DBUILD_TF_LITE_PARSER="$flag_tflite_parser" \
+ -DBUILD_ONNX_PARSER="$flag_onnx_parser" \
+ -DARMCOMPUTENEON="$flag_neon_backend" \
+ -DARMCOMPUTECL="$flag_cl_backend" \
+ -DARMNNREF="$flag_ref_backend" \
+ -DARMCOMPUTE_ROOT="$ACL_SRC" \
+ -DARMCOMPUTE_BUILD_DIR="$ACL_BUILD_TARGET" \
+ -DTENSORFLOW_ROOT="$TENSORFLOW_SRC" \
+ -DTF_LITE_SCHEMA_INCLUDE_PATH="$TFLITE_BUILD_ROOT" \
+ -DTFLITE_LIB_ROOT="$TFLITE_BUILD_TARGET" \
+ -DFLATBUFFERS_ROOT="$FLATBUFFERS_BUILD_TARGET" \
+ -DFLATC_DIR="$FLATBUFFERS_BUILD_HOST" \
+ -DONNX_GENERATED_SOURCES="$ONNX_BUILD_TARGET" \
+ -DPROTOBUF_ROOT="$PROTOBUF_BUILD_HOST" \
+ -DPROTOBUF_LIBRARY_DEBUG="$PROTOBUF_LIBRARY_TARGET" \
+ -DPROTOBUF_LIBRARY_RELEASE="$PROTOBUF_LIBRARY_TARGET" \
+ "$armnn_cmake_args" \
+ "$ARMNN_SRC"
+
+ make -j "$NUM_THREADS"
+
+ # Copy protobuf library into Arm NN build directory, if ONNX Parser is enabled
+ if [ "$flag_onnx_parser" -eq 1 ]; then
+ cd "$ARMNN_BUILD_TARGET"
+ rm -f libprotobuf.so libprotobuf.so.23 libprotobuf.so.23.0.0
+ cp "$PROTOBUF_LIBRARY_TARGET" .
+ ln -s libprotobuf.so.23.0.0 ./libprotobuf.so.23
+ ln -s libprotobuf.so.23.0.0 ./libprotobuf.so
+ fi
+
+ echo -e "\n***** Built Arm NN for $TARGET_ARCH *****"
+
+ local tarball_path="$ROOT_DIR/armnn_$ARMNN_BUILD_DIR_NAME.tar.gz"
+ echo -e "\n***** Creating tarball of Arm NN build at $tarball_path *****"
+
+ cd "$ARMNN_BUILD_ROOT"
+ rm -f "$tarball_path"
+ tar -czf "$tarball_path" "$ARMNN_BUILD_DIR_NAME"
+
+ echo -e "\n***** Created tarball of Arm NN build at $ROOT_DIR/armnn_$ARMNN_BUILD_DIR_NAME.tar.gz *****"
+ echo -e "\n***** To extract tarball, run: tar -xzf armnn_$ARMNN_BUILD_DIR_NAME.tar.gz *****\n"
+
+ return 0
+}
+
+usage()
+{
+ cat <<EOF
+build-armnn.sh - Build Arm NN and ACL
+build-armnn.sh [OPTION]...
+ --tflite-delegate
+ build the Arm NN TF Lite Delegate component
+ --tflite-parser
+ build the Arm NN TF Lite Parser component
+ --onnx-parser
+ build the Arm NN ONNX parser component
+ --all
+ build all Arm NN components listed above
+ --target-arch=[aarch64|aarch32|x86_64]
+ specify a target architecture (mandatory)
+ --neon-backend
+ build Arm NN with the NEON backend (CPU acceleration from ACL)
+ --cl-backend
+ build Arm NN with the OpenCL backend (GPU acceleration from ACL)
+ --ref-backend
+ build Arm NN with the reference backend (Should be used for verification purposes only. Does not provide any performance acceleration.)
+ --clean
+ remove previous Arm NN and ACL build prior to script execution (optional: defaults to off)
+ --debug
+ build Arm NN (and ACL) with debug turned on (optional: defaults to off)
+ --armnn-cmake-args=<ARG LIST STRING>
+ provide additional space-separated CMake arguments for building Arm NN (optional)
+ --acl-scons-params=<PARAM LIST STRING>
+ provide additional space-separated scons parameters for building ACL (optional)
+ --num-threads=<INTEGER>
+ specify number of threads/cores to build dependencies with (optional: defaults to number of online CPU cores on host)
+ -h, --help
+ print brief usage information and exit
+ -x
+ enable shell tracing in this script
+
+At least one component (i.e. --tflite-delegate, --tflite-parser, --onnx-parser) must be provided or else provide --all to build all Arm NN components.
+At least one backend (i.e. --neon-backend, --cl-backend, --ref-backend) must be chosen.
+This script must be executed from the same root directory in which setup-armnn.sh was executed from.
+
+This script will build using Arm NN and ACL repositories checked out in <ROOT_DIR>/source, downloaded using setup-armnn.sh.
+Alternatively, place custom/modified repositories named "armnn" and "acl" in <ROOT_DIR>/source.
+
+By default, a tarball tar.gz archive of the Arm NN build will be created in the directory from which this script is called from.
+
+Examples:
+Build for aarch64 with all Arm NN components, NEON enabled and OpenCL enabled:
+ <PATH_TO>/build-armnn.sh --target-arch=aarch64 --all --neon-backend --cl-backend
+Build for aarch64 with TF Lite Delegate, OpenCL enabled and additional ACL scons params:
+ <PATH_TO>/build-armnn.sh --target-arch=aarch64 --tflite-delegate --cl-backend --acl-scons-params="compress_kernels=1 benchmark_examples=1"
+Setup for aarch32 with all Arm NN dependencies, OpenCL enabled and additional Arm NN cmake args:
+ <PATH_TO>/build-armnn.sh --target-arch=aarch32 --all --cl-backend --armnn-cmake-args="-DBUILD_SAMPLE_APP=1 -DBUILD_UNIT_TESTS=0"
+EOF
+}
+
+# This will catch in validation.sh if not set
+target_arch=""
+
+# Default flag values
+flag_tflite_delegate=0
+flag_tflite_parser=0
+flag_onnx_parser=0
+flag_neon_backend=0
+flag_cl_backend=0
+flag_ref_backend=0
+flag_clean=0
+flag_debug=0
+
+# Empty strings for optional additional args by default
+armnn_cmake_args=""
+acl_scons_params=""
+
+# If --num-threads is not set, the default NUM_THREADS value in common.sh will be used
+num_threads=0
+
+name=$(basename "$0")
+
+# If no options provided, show help
+if [ $# -eq 0 ]; then
+ usage
+ exit 1
+fi
+
+args=$(getopt -ohx -l tflite-delegate,tflite-parser,onnx-parser,all,target-arch:,neon-backend,cl-backend,ref-backend,clean,debug,armnn-cmake-args:,acl-scons-params:,num-threads:,help -n "$name" -- "$@")
+eval set -- "$args"
+while [ $# -gt 0 ]; do
+ if [ -n "${opt_prev:-}" ]; then
+ eval "$opt_prev=\$1"
+ opt_prev=
+ shift 1
+ continue
+ elif [ -n "${opt_append:-}" ]; then
+ if [ -n "$1" ]; then
+ eval "$opt_append=\"\${$opt_append:-} \$1\""
+ fi
+ opt_append=
+ shift 1
+ continue
+ fi
+ case $1 in
+ --tflite-parser)
+ flag_tflite_parser=1
+ ;;
+
+ --tflite-delegate)
+ flag_tflite_delegate=1
+ ;;
+
+ --onnx-parser)
+ flag_onnx_parser=1
+ ;;
+
+ --all)
+ flag_tflite_delegate=1
+ flag_tflite_parser=1
+ flag_onnx_parser=1
+ ;;
+
+ --target-arch)
+ opt_prev=target_arch
+ ;;
+
+ --neon-backend)
+ flag_neon_backend=1
+ ;;
+
+ --cl-backend)
+ flag_cl_backend=1
+ ;;
+
+ --ref-backend)
+ flag_ref_backend=1
+ ;;
+
+ --clean)
+ flag_clean=1
+ ;;
+
+ --debug)
+ flag_debug=1
+ ;;
+
+ --armnn-cmake-args)
+ opt_prev=armnn_cmake_args
+ ;;
+
+ --acl-scons-params)
+ opt_prev=acl_scons_params
+ ;;
+
+ --num-threads)
+ opt_prev=num_threads
+ ;;
+
+ -h | --help)
+ usage
+ exit 0
+ ;;
+
+ -x)
+ set -x
+ ;;
+
+ --)
+ shift
+ break 2
+ ;;
+
+ esac
+ shift 1
+done
+
+# shellcheck source=common.sh
+source "$rel_path"/common.sh
+
+# Validation of chosen Arm NN backends
+if [ "$flag_neon_backend" -eq 0 ] && [ "$flag_cl_backend" -eq 0 ] && [ "$flag_ref_backend" -eq 0 ]; then
+ echo -e "\n$name: at least one of flags --neon-backend, --cl-backend or --ref-backend must be set."
+ exit 1
+fi
+
+if [ "$target_arch" == "x86_64" ]; then
+ if [ "$flag_neon_backend" -eq 1 ] || [ "$flag_cl_backend" -eq 1 ]; then
+ echo "$name: Accelerated backends --neon-backend and --cl-backend are supported on Arm targets only (x86_64 chosen)."
+ exit 1
+ fi
+fi
+
+# Verify that root source and build directories are present (post execution of setup-armnn.sh)
+if [ ! -d "$SOURCE_DIR" ]; then
+ echo -e "\nERROR: Root source directory does not exist at $SOURCE_DIR"
+ echo "Please check that:"
+ echo "1. setup-armnn.sh was executed successfully prior to running this script"
+ echo "2. This script is being executed in the same directory as setup-armnn.sh"
+
+ exit 1
+fi
+
+if [ ! -d "$BUILD_DIR" ]; then
+ echo -e "\nERROR: Root build directory does not exist at $BUILD_DIR"
+ echo "Please check that:"
+ echo "1. setup-armnn.sh was executed successfully prior to running this script"
+ echo "2. This script is being executed in the same directory as setup-armnn.sh"
+
+ exit 1
+fi
+
+# Verify that Arm NN and ACL exist in correct paths prior to script execution
+if [ ! -d "$ARMNN_SRC" ]; then
+ echo -e "\nERROR: Arm NN repo does not exist as expected at $ARMNN_SRC"
+ exit 1
+fi
+
+if [ "$flag_neon_backend" -eq 1 ] || [ "$flag_cl_backend" -eq 1 ]; then
+ if [ ! -d "$ACL_SRC" ]; then
+ echo -e "\nERROR: ACL repo does not exist as expected at $ACL_SRC"
+ exit 1
+ fi
+fi
+
+# Adjust output build directory names for Arm NN and ACL if debug is enabled
+DEBUG_POSTFIX=""
+if [ "$flag_debug" -eq 1 ]; then
+ DEBUG_POSTFIX="_debug"
+fi
+
+# Directories for Arm NN and ACL build outputs
+ARMNN_BUILD_ROOT="$BUILD_DIR"/armnn
+ARMNN_BUILD_DIR_NAME="$TARGET_ARCH"_build"$DEBUG_POSTFIX"
+ARMNN_BUILD_TARGET="$ARMNN_BUILD_ROOT"/"$ARMNN_BUILD_DIR_NAME"
+ACL_BUILD_TARGET="$BUILD_DIR"/acl/"$TARGET_ARCH"_build"$DEBUG_POSTFIX"
+
+echo -e "\nINFO: Displaying configuration information before execution of $name"
+echo " target-arch: $TARGET_ARCH"
+echo " host-arch: $HOST_ARCH"
+echo " tflite-delegate: $flag_tflite_delegate"
+echo " tflite-parser: $flag_tflite_parser"
+echo " onnx-parser: $flag_onnx_parser"
+echo " neon-backend: $flag_neon_backend"
+echo " cl-backend: $flag_cl_backend"
+echo " ref-backend: $flag_ref_backend"
+echo " clean: $flag_clean"
+echo " debug: $flag_debug"
+echo "armnn-cmake-args: $armnn_cmake_args"
+echo "acl-scons-params: $acl_scons_params"
+echo " num-threads: $NUM_THREADS"
+echo " root directory: $ROOT_DIR"
+echo "source directory: $SOURCE_DIR"
+echo " build directory: $BUILD_DIR"
+echo " armnn build dir: $ARMNN_BUILD_TARGET"
+echo -e "\nScript execution will begin in 10 seconds..."
+
+sleep 10
+
+if [ "$flag_neon_backend" -eq 1 ] || [ "$flag_cl_backend" -eq 1 ]; then
+ build_acl
+else
+ echo -e "\n***** Skipping ACL build: --neon-backend and --cl-backend not set in options. *****"
+fi
+
+build_armnn
+
+exit 0
\ No newline at end of file
diff --git a/build-tool/scripts/common.sh b/build-tool/scripts/common.sh
new file mode 100755
index 0000000..522bfb6
--- /dev/null
+++ b/build-tool/scripts/common.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Script which stores common variables and paths used by setup-armnn.sh and build-armnn.sh
+
+# shellcheck disable=SC2034
+# SC2034: false positives for variables appear unused - variables are used in setup-armnn.sh and build-armnn.sh
+
+set -o nounset # Catch references to undefined variables.
+set -o pipefail # Catch non zero exit codes within pipelines.
+set -o errexit # Catch and propagate non zero exit codes.
+
+# ROOT_DIR is the directory in which a script is called from
+ROOT_DIR=$(pwd)
+SOURCE_DIR="$ROOT_DIR"/source
+BUILD_DIR="$ROOT_DIR"/build
+
+# Host architecture e.g. x86_64, aarch64
+HOST_ARCH=$(uname -m)
+
+# Number of online cores on host
+NUM_THREADS=$(getconf _NPROCESSORS_ONLN)
+
+# Validate common user-defined options
+# shellcheck source=validation.sh
+source "$rel_path"/validation.sh
+
+# target_arch supplied as command line arg
+TARGET_ARCH="$target_arch"
+
+NATIVE_BUILD=0
+if [ "$TARGET_ARCH" == "$HOST_ARCH" ]; then
+ NATIVE_BUILD=1
+fi
+
+AARCH64_COMPILER_FLAGS+="CC=/usr/bin/aarch64-linux-gnu-gcc CXX=/usr/bin/aarch64-linux-gnu-g++ "
+AARCH32_COMPILER_FLAGS+="CC=/usr/bin/arm-linux-gnueabihf-gcc CXX=/usr/bin/arm-linux-gnueabihf-g++ "
+
+# Flatbuffers
+FLATBUFFERS_VERSION=1.12.0
+FLATBUFFERS_SRC="$SOURCE_DIR"/flatbuffers-"$FLATBUFFERS_VERSION"
+FLATBUFFERS_BUILD_ROOT="$BUILD_DIR"/flatbuffers
+FLATBUFFERS_BUILD_TARGET="$FLATBUFFERS_BUILD_ROOT"/"$TARGET_ARCH"_build
+FLATBUFFERS_BUILD_HOST="$FLATBUFFERS_BUILD_ROOT"/"$HOST_ARCH"_build # Location of flatc compiler
+
+# Tensorflow
+TENSORFLOW_SRC="$SOURCE_DIR"/tensorflow
+TFLITE_SRC="$TENSORFLOW_SRC"/tensorflow/lite
+SCHEMA_SRC="$TFLITE_SRC"/schema/schema.fbs
+
+# TF Lite Schema
+FLATC="$FLATBUFFERS_BUILD_HOST"/bin/flatc
+TFLITE_BUILD_ROOT="$BUILD_DIR"/tflite # Generated TF Lite Schema location
+TFLITE_BUILD_TARGET="$TFLITE_BUILD_ROOT"/"$TARGET_ARCH"_build
+
+# Protobuf
+PROTOBUF_VERSION=3.12.0
+PROTOBUF_SRC="$SOURCE_DIR"/protobuf-"$PROTOBUF_VERSION"
+PROTOBUF_BUILD_ROOT="$BUILD_DIR"/protobuf
+PROTOBUF_BUILD_HOST="$PROTOBUF_BUILD_ROOT"/"$HOST_ARCH"_build
+PROTOCOL_COMPILER_HOST="$PROTOBUF_BUILD_HOST"/bin/protoc
+PROTOBUF_BUILD_TARGET="$PROTOBUF_BUILD_ROOT"/"$TARGET_ARCH"_build
+PROTOBUF_LIBRARY_TARGET="$PROTOBUF_BUILD_TARGET"/lib/libprotobuf.so.23.0.0
+
+# ONNX
+ONNX_VERSION=1.6.0
+ONNX_SRC="$SOURCE_DIR"/onnx-"$ONNX_VERSION"
+ONNX_BUILD_TARGET="$BUILD_DIR"/onnx/"$TARGET_ARCH"_build
+
+# Arm NN / ACL
+ARMNN_SRC="$SOURCE_DIR"/armnn
+ACL_SRC="$SOURCE_DIR"/acl
\ No newline at end of file
diff --git a/build-tool/scripts/setup-armnn.sh b/build-tool/scripts/setup-armnn.sh
new file mode 100755
index 0000000..6a9c22e
--- /dev/null
+++ b/build-tool/scripts/setup-armnn.sh
@@ -0,0 +1,452 @@
+#!/bin/bash
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Script which downloads and builds Arm NN dependencies
+# Perquisite to running build-armnn.sh
+
+set -o nounset # Catch references to undefined variables.
+set -o pipefail # Catch non zero exit codes within pipelines.
+set -o errexit # Catch and propagate non zero exit codes.
+
+rel_path=$(dirname "$0") # relative path from where script is executed to script location
+
+# Download an archive using wget and extract using tar
+# Takes three arguments:
+# 1. Name of dependency being downloaded e.g. Flatbuffers
+# 2. Link to archive
+# 3. Filename given to archive upon downloading
+download_and_extract()
+{
+ cd "$SOURCE_DIR"
+
+ echo -e "\n***** Downloading $1 *****"
+ wget -O "$3" "$2"
+
+ echo -e "\n***** Extracting archive *****"
+ tar -xzf "$3"
+
+ echo -e "\n***** Removing archive *****"
+ rm "$3"
+
+ echo -e "\n***** $1 downloaded *****"
+}
+
+download_protobuf()
+{
+ download_and_extract \
+ "Protobuf" \
+ "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protobuf-all-$PROTOBUF_VERSION.tar.gz" \
+ "protobuf-all-$PROTOBUF_VERSION.tar.gz"
+}
+
+build_protobuf()
+{
+ local native_build=$1
+ local build_dir="$PROTOBUF_BUILD_TARGET"
+ local cmake_flags=""
+ local target_arch="$TARGET_ARCH"
+ local additional_cmds=""
+
+ if [ "$native_build" -eq 0 ]; then
+ mkdir -p "$PROTOBUF_BUILD_TARGET"
+ additional_cmds+="--with-protoc=$PROTOCOL_COMPILER_HOST "
+ if [ "$TARGET_ARCH" == "aarch64" ]; then
+ cmake_flags+="$AARCH64_COMPILER_FLAGS"
+ additional_cmds+="--host=aarch64-linux "
+ elif [ "$TARGET_ARCH" == "aarch32" ]; then
+ cmake_flags+="$AARCH32_COMPILER_FLAGS"
+ additional_cmds+="--host=arm-linux "
+ fi
+ else
+ target_arch="$HOST_ARCH"
+ mkdir -p "$PROTOBUF_BUILD_HOST"
+ build_dir="$PROTOBUF_BUILD_HOST"
+ fi
+
+ echo -e "\n***** Building Protobuf for $target_arch ***** "
+
+ cd "$PROTOBUF_BUILD_ROOT"
+
+ # Cleanup any previous cmake files, except actual builds which we keep
+ find . -mindepth 1 -name "*_build" -prune -o -exec rm -rf {} +
+
+ eval "$cmake_flags" \
+ "$PROTOBUF_SRC"/configure --prefix="$build_dir" "$additional_cmds"
+ make install -j "$NUM_THREADS"
+
+ echo -e "\n***** Protobuf built for $target_arch ***** "
+}
+
+download_flatbuffers()
+{
+ download_and_extract \
+ "Flatbuffers" \
+ "https://github.com/google/flatbuffers/archive/v$FLATBUFFERS_VERSION.tar.gz" \
+ "flatbuffers-$FLATBUFFERS_VERSION.tar.gz"
+}
+
+build_flatbuffers()
+{
+ local native_build=$1
+ local build_dir="$FLATBUFFERS_BUILD_TARGET"
+ local target_arch="$TARGET_ARCH"
+
+ local cmake_flags="CXXFLAGS=-fPIC "
+
+ if [ "$native_build" -eq 0 ]; then
+ mkdir -p "$FLATBUFFERS_BUILD_TARGET"
+ if [ "$TARGET_ARCH" == "aarch64" ]; then
+ cmake_flags+="$AARCH64_COMPILER_FLAGS"
+ elif [ "$TARGET_ARCH" == "aarch32" ]; then
+ cmake_flags+="$AARCH32_COMPILER_FLAGS"
+ fi
+ else
+ target_arch="$HOST_ARCH"
+ mkdir -p "$FLATBUFFERS_BUILD_HOST"
+ build_dir="$FLATBUFFERS_BUILD_HOST"
+ fi
+
+ echo -e "\n***** Building flatbuffers for $target_arch *****"
+
+ mkdir -p "$FLATBUFFERS_BUILD_ROOT"
+ cd "$FLATBUFFERS_BUILD_ROOT"
+
+ # Cleanup any previous cmake files, except actual builds which we keep
+ find . -mindepth 1 -name "*_build" -prune -o -exec rm -rf {} +
+
+ eval "$cmake_flags" \
+ cmake -DFLATBUFFERS_BUILD_FLATC=1 \
+ -DCMAKE_INSTALL_PREFIX:PATH="$build_dir" \
+ -DFLATBUFFERS_BUILD_TESTS=0 \
+ "$FLATBUFFERS_SRC"
+ make all install -j "$NUM_THREADS"
+
+ echo -e "\n***** Built flatbuffers for $target_arch *****"
+}
+
+download_tensorflow()
+{
+ cd "$SOURCE_DIR"
+
+ echo -e "\n***** Downloading TensorFlow *****"
+ git clone https://github.com/tensorflow/tensorflow.git
+ cd "$TENSORFLOW_SRC"
+
+ git checkout "$("$ARMNN_SRC"/scripts/get_tensorflow.sh -p)"
+ echo -e "\n***** TensorFlow downloaded *****"
+}
+
+build_tflite()
+{
+ mkdir -p "$TFLITE_BUILD_TARGET"
+ cd "$TFLITE_BUILD_TARGET"
+
+ local target_arch_cmd="" # default is native, no command needed
+ local cmake_flags=""
+
+ case "$TARGET_ARCH" in
+ "aarch64")
+ cmake_flags+="$AARCH64_COMPILER_FLAGS"
+ target_arch_cmd="-DCMAKE_SYSTEM_PROCESSOR=aarch64 "
+
+ if [ "$NATIVE_BUILD" -eq 0 ]; then
+ cmake_flags+="ARMCC_FLAGS='-funsafe-math-optimizations' "
+ fi
+ ;;
+
+ "aarch32")
+ cmake_flags+="$AARCH32_COMPILER_FLAGS"
+ target_arch_cmd="-DCMAKE_SYSTEM_PROCESSOR=armv7 "
+
+ if [ "$NATIVE_BUILD" -eq 0 ]; then
+ cmake_flags+="ARMCC_FLAGS='-march=armv7-a -mfpu=neon-vfpv4 -funsafe-math-optimizations -mfp16-format=ieee' "
+ fi
+ ;;
+ esac
+
+ echo -e "\n***** Building TF Lite for $TARGET_ARCH *****"
+
+ # Cleanup any previous cmake files, except actual builds which we keep
+ find . -mindepth 1 -name "*_build" -prune -o -exec rm -rf {} +
+
+ eval "$cmake_flags" \
+ cmake -DTFLITE_ENABLE_XNNPACK=OFF \
+ "$target_arch_cmd" \
+ "$TFLITE_SRC"
+ cmake --build . -j "$NUM_THREADS"
+
+ echo -e "\n***** Built TF Lite for $TARGET_ARCH *****"
+}
+
+generate_tflite_schema()
+{
+ echo -e "\n***** Generating TF Lite Schema *****"
+ mkdir -p "$TFLITE_BUILD_ROOT"
+ cd "$TFLITE_BUILD_ROOT"
+
+ cp "$SCHEMA_SRC" .
+
+ $FLATC -c --gen-object-api --reflect-types --reflect-names schema.fbs
+
+ echo -e "\n***** Generated TF Lite Schema *****"
+}
+
+download_onnx()
+{
+ download_and_extract \
+ "ONNX" \
+ "https://github.com/onnx/onnx/releases/download/v$ONNX_VERSION/onnx-$ONNX_VERSION.tar.gz" \
+ "onnx-$ONNX_VERSION.tar.gz"
+}
+
+generate_onnx_sources()
+{
+ mkdir -p "$ONNX_BUILD_TARGET"
+ cd "$ONNX_SRC"
+
+ echo -e "\n***** Generating ONNX sources for $TARGET_ARCH *****"
+
+ export LD_LIBRARY_PATH="$PROTOBUF_BUILD_HOST"/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}
+
+ eval "$PROTOCOL_COMPILER_HOST" onnx/onnx.proto \
+ --proto_path=. \
+ --proto_path="$ONNX_SRC" \
+ --proto_path="$PROTOBUF_BUILD_HOST"/include \
+ --cpp_out "$ONNX_BUILD_TARGET"
+
+ echo -e "\n***** Generated ONNX sources for $TARGET_ARCH *****"
+}
+
+download_armnn()
+{
+ cd "$SOURCE_DIR"
+
+ echo -e "\n***** Downloading Arm NN *****"
+
+ # Latest release branch of Arm NN is checked out by default
+ git clone https://github.com/ARM-software/armnn.git armnn
+
+ cd "$ARMNN_SRC"
+ armnn_branch="$(git rev-parse --abbrev-ref HEAD)"
+
+ echo -e "\n***** Arm NN Downloaded: $armnn_branch *****"
+}
+
+download_acl()
+{
+ cd "$SOURCE_DIR"
+
+ echo -e "\n***** Downloading ACL *****"
+
+ git clone https://github.com/ARM-software/ComputeLibrary.git acl
+
+ # Get corresponding release tag for ACL by parsing release branch number for Arm NN
+ local acl_tag=""
+ acl_tag="$(echo "$armnn_branch" | tr '\n' ' ' | sed -e 's/[^0-9]/ /g' -e 's/^ *//g' -e 's/ *$//g' | tr -s ' ' | sed 's/ /./g')"
+
+ cd "$ACL_SRC"
+ git checkout v"$acl_tag"
+
+ echo -e "\n***** ACL Downloaded: $acl_tag *****"
+}
+
+usage()
+{
+ cat <<EOF
+setup-armnn.sh - Download and build Arm NN dependencies in the current directory (ROOT_DIR)
+setup-armnn.sh [OPTION]...
+ --tflite-delegate
+ setup dependencies for the Arm NN TF Lite Delegate
+ --tflite-parser
+ setup dependencies for the Arm NN TF Lite Parser
+ --onnx-parser
+ setup dependencies for the Arm NN ONNX parser
+ --all
+ setup dependencies for all Arm NN components listed above
+ --target-arch=[aarch64|aarch32|x86_64]
+ specify a target architecture (mandatory)
+ --num-threads=<INTEGER>
+ specify number of threads/cores to build dependencies with (optional: defaults to number of online CPU cores on host)
+ -h, --help
+ print brief usage information and exit
+ -x
+ enable shell tracing in this script
+
+At least one dependency flag (e.g. --tflite-delegate) must be provided or else provide --all to setup all dependencies.
+Directories called "source" and "build" will be generated in the current directory (ROOT_DIR) from which this script is called.
+It's recommended to call this script in a directory outside of this Arm NN source repo, to avoid nested repositories.
+
+This script will download the latest release branches of Arm NN and ACL, by default.
+Alternatively, manually create a "source" directory in ROOT_DIR and place custom repositories there.
+Custom repositories in "source" must be named "armnn" and "acl".
+
+Examples:
+Setup for aarch64 with all Arm NN dependencies:
+ <PATH_TO>/setup-armnn.sh --target-arch=aarch64 --all
+Setup for aarch64 with TF Lite Delegate and TF Lite Parser dependencies only:
+ <PATH_TO>/setup-armnn.sh --target-arch=aarch64 --tflite-delegate --tflite-parser
+Setup for aarch32 with all Arm NN dependencies:
+ <PATH_TO>/setup-armnn.sh --target-arch=aarch32 --all
+EOF
+}
+
+# This will catch in validation.sh if not set
+target_arch=""
+
+# Default flag values
+flag_tflite_delegate=0
+flag_tflite_parser=0
+flag_onnx_parser=0
+
+# If --num-threads is not set, the default NUM_THREADS value in common.sh will be used
+num_threads=0
+
+name=$(basename "$0")
+
+# If no options provided, show help
+if [ $# -eq 0 ]; then
+ usage
+ exit 1
+fi
+
+args=$(getopt -ohx -l tflite-delegate,tflite-parser,onnx-parser,all,target-arch:,num-threads:,help -n "$name" -- "$@")
+eval set -- "$args"
+while [ $# -gt 0 ]; do
+ if [ -n "${opt_prev:-}" ]; then
+ eval "$opt_prev=\$1"
+ opt_prev=
+ shift 1
+ continue
+ elif [ -n "${opt_append:-}" ]; then
+ if [ -n "$1" ]; then
+ eval "$opt_append=\"\${$opt_append:-} \$1\""
+ fi
+ opt_append=
+ shift 1
+ continue
+ fi
+ case $1 in
+ --tflite-parser)
+ flag_tflite_parser=1
+ ;;
+
+ --tflite-delegate)
+ flag_tflite_delegate=1
+ ;;
+
+ --onnx-parser)
+ flag_onnx_parser=1
+ ;;
+
+ --all)
+ flag_tflite_delegate=1
+ flag_tflite_parser=1
+ flag_onnx_parser=1
+ ;;
+
+ --target-arch)
+ opt_prev=target_arch
+ ;;
+
+ --num-threads)
+ opt_prev=num_threads
+ ;;
+
+ -h | --help)
+ usage
+ exit 0
+ ;;
+
+ -x)
+ set -x
+ ;;
+
+ --)
+ shift
+ break 2
+ ;;
+
+ esac
+ shift 1
+done
+
+# shellcheck source=common.sh
+source "$rel_path"/common.sh
+
+echo -e "\nINFO: Displaying configuration information before execution of $name"
+echo " target-arch: $TARGET_ARCH"
+echo " host-arch: $HOST_ARCH"
+echo " tflite-delegate: $flag_tflite_delegate"
+echo " tflite-parser: $flag_tflite_parser"
+echo " onnx-parser: $flag_onnx_parser"
+echo " num-threads: $NUM_THREADS"
+echo " root directory: $ROOT_DIR"
+echo "source directory: $SOURCE_DIR"
+echo " build directory: $BUILD_DIR"
+
+if [ "$(git rev-parse --is-inside-work-tree 2> /dev/null)" ]; then
+ echo -e "\n***** WARNING: Running script inside a git repository. To avoid nested repos, call this script from outside of this repo. *****"
+fi
+
+echo -e "\nScript execution will begin in 10 seconds..."
+
+sleep 10
+
+mkdir -p "$SOURCE_DIR"
+mkdir -p "$BUILD_DIR"
+
+if [ -d "$ARMNN_SRC" ]; then
+ echo -e "\n***** Arm NN source repository already located at $ARMNN_SRC. Skipping cloning of Arm NN. *****"
+else
+ download_armnn
+fi
+
+if [ -d "$ACL_SRC" ]; then
+ echo -e "\n***** ACL source repository already located at $ACL_SRC. Skipping cloning of ACL. *****"
+else
+ download_acl
+fi
+
+if [ "$flag_tflite_delegate" -eq 1 ] || [ "$flag_tflite_parser" -eq 1 ]; then
+ download_flatbuffers
+
+ # Host build
+ build_flatbuffers 1
+
+ # Target build for cross compile
+ if [ "$NATIVE_BUILD" -eq 0 ]; then
+ build_flatbuffers 0
+ fi
+
+ download_tensorflow
+fi
+
+if [ "$flag_tflite_parser" -eq 1 ]; then
+ generate_tflite_schema
+fi
+
+if [ "$flag_tflite_delegate" -eq 1 ]; then
+ build_tflite
+fi
+
+if [ "$flag_onnx_parser" -eq 1 ]; then
+ download_protobuf
+
+ # Host build
+ build_protobuf 1
+
+ # Target build for cross compile
+ if [ "$NATIVE_BUILD" -eq 0 ]; then
+ build_protobuf 0
+ fi
+
+ download_onnx
+ generate_onnx_sources
+fi
+
+echo -e "\n***** Arm NN setup complete. Now build with build-armnn.sh. *****\n"
+
+exit 0
\ No newline at end of file
diff --git a/build-tool/scripts/validation.sh b/build-tool/scripts/validation.sh
new file mode 100755
index 0000000..785c1b8
--- /dev/null
+++ b/build-tool/scripts/validation.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+# Common validation of command line arguments provided to setup-armnn.sh and build-armnn.sh
+
+# shellcheck disable=SC2034,SC2154
+# SC2034: false positives for variables appear unused - variables are used in setup-armnn.sh and build-armnn.sh
+# SC2154: false positives for variables referenced but not assigned - variables are assigned in setup-armnn.sh and build-armnn.sh
+
+set -o nounset # Catch references to undefined variables.
+set -o pipefail # Catch non zero exit codes within pipelines.
+set -o errexit # Catch and propagate non zero exit codes.
+
+# Host and target architecture validation
+if [ "$target_arch" == "" ]; then
+ echo "$name: --target-arch is not set. Example usage: --target-arch=aarch64"
+ exit 1
+fi
+
+if [ "$target_arch" != "aarch64" ] && [ "$target_arch" != "aarch32" ] && [ "$target_arch" != "x86_64" ]; then
+ echo "$name: --target-arch is not valid. Valid options are: aarch64, aarch32, x86_64"
+ exit 1
+fi
+
+if [ "$HOST_ARCH" == "aarch64" ]; then
+ if [ "$target_arch" != "aarch64" ]; then
+ echo "$name: aarch64 is the only supported --target_arch when host is aarch64"
+ exit 1
+ fi
+fi
+
+if [ "$target_arch" == "aarch32" ]; then
+ if [ "$HOST_ARCH" != "x86_64" ]; then
+ echo "$name: aarch32 is the only supported --target_arch when host is x86_64 (cross compile only)"
+ exit 1
+ fi
+fi
+
+# Validation of chosen Arm NN dependencies
+if [ "$flag_tflite_delegate" -eq 0 ] && [ "$flag_tflite_parser" -eq 0 ] && [ "$flag_onnx_parser" -eq 0 ]; then
+ echo "$name: at least one of flags --tflite-delegate, --tflite-parser or --onnx-parser must be set (or --all)."
+ exit 1
+fi
+
+# If --num-threads is set, overwrite default NUM_THREADS with user-defined value
+if [ ! "$num_threads" -eq 0 ]; then
+ NUM_THREADS="$num_threads"
+fi
\ No newline at end of file