picolibc: Update to version 1.8.6 #745

Workflow file for this run

	# Zephyr SDK Continuous Integration Workflow

	name: CI

	on:
	push:
	branches:
	- main
	- topic-*
	pull_request_target:
	branches:
	- main
	- topic-*
	workflow_call:
	secrets:
	AWS_CACHE_SDK_ACCESS_KEY_ID:
	required: true
	AWS_CACHE_SDK_SECRET_ACCESS_KEY:
	required: true
	workflow_dispatch:
	inputs:
	zephyr-ref:
	description: 'Zephyr Ref (branch, tag, SHA, ...)'
	required: true
	default: collab-sdk-dev
	host:
	description: 'Host'
	type: choice
	required: true
	options:
	- all
	- linux-x86_64
	- linux-aarch64
	- macos-x86_64
	- macos-aarch64
	- windows-x86_64
	target:
	description: 'Target'
	type: choice
	required: true
	options:
	- all
	- aarch64-zephyr-elf
	- arc64-zephyr-elf
	- arc-zephyr-elf
	- arm-zephyr-eabi
	- microblazeel-zephyr-elf
	- mips-zephyr-elf
	- nios2-zephyr-elf
	- riscv64-zephyr-elf
	- sparc-zephyr-elf
	- x86_64-zephyr-elf
	- xtensa-dc233c_zephyr-elf
	- xtensa-espressif_esp32_zephyr-elf
	- xtensa-espressif_esp32s2_zephyr-elf
	- xtensa-espressif_esp32s3_zephyr-elf
	- xtensa-intel_ace15_mtpm_zephyr-elf
	- xtensa-intel_tgl_adsp_zephyr-elf
	- xtensa-mtk_mt8195_adsp_zephyr-elf
	- xtensa-nxp_imx_adsp_zephyr-elf
	- xtensa-nxp_imx8m_adsp_zephyr-elf
	- xtensa-nxp_imx8ulp_adsp_zephyr-elf
	- xtensa-nxp_rt500_adsp_zephyr-elf
	- xtensa-nxp_rt600_adsp_zephyr-elf
	- xtensa-sample_controller_zephyr-elf
	debug:
	description: 'Debug'
	type: choice
	required: true
	options:
	- none
	- toolchain-pre
	- toolchain-post
	- hosttools

	concurrency:
	group: ${{ github.event_name == 'workflow_dispatch' && github.run_id \|\| github.head_ref \|\| github.ref }}
	cancel-in-progress: ${{ github.event_name != 'workflow_dispatch' }}

	env:
	BUG_URL: 'https://github.com/zephyrproject-rtos/sdk-ng/issues'
	BUNDLE_NAME: Zephyr SDK
	BUNDLE_PREFIX: zephyr-sdk
	ZEPHYR_REF: collab-sdk-dev

	jobs:
	# Setup
	setup:
	name: Setup
	runs-on: ubuntu-20.04
	outputs:
	hosts: ${{ steps.generate-matrix.outputs.hosts }}
	targets: ${{ steps.generate-matrix.outputs.targets }}
	testenvs: ${{ steps.generate-matrix.outputs.testenvs }}
	debug: ${{ steps.generate-matrix.outputs.debug }}

	steps:
	- name: Check out source code
	if: ${{ github.event_name != 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	persist-credentials: false

	- name: Check out source code (pull request)
	if: ${{ github.event_name == 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	fetch-depth: 0
	persist-credentials: false

	- name: Generate version file
	run: \|
	VERSION=$(git describe --tags --match 'v*')
	echo "${VERSION:1}" > version

	- name: Upload version file
	uses: actions/upload-artifact@v3
	with:
	name: version
	path: version

	- name: Generate matrix
	id: generate-matrix
	run: \|
	# Set build configurations
	if [ "${{ github.event_name }}" == "pull_request_target" ]; then
	# Set configurations based on the pull request labels
	${{ contains(github.event.pull_request.labels.*.name, 'ci-linux-x86_64') }} && build_host_linux_x86_64="y"
	${{ contains(github.event.pull_request.labels.*.name, 'ci-linux-aarch64') }} && build_host_linux_aarch64="y"
	${{ contains(github.event.pull_request.labels.*.name, 'ci-macos-x86_64') }} && build_host_macos_x86_64="y"
	${{ contains(github.event.pull_request.labels.*.name, 'ci-macos-aarch64') }} && build_host_macos_aarch64="y"
	${{ contains(github.event.pull_request.labels.*.name, 'ci-windows-x86_64') }} && build_host_windows_x86_64="y"

	# Build all targets for pull requests
	build_target_all="y"

	# Set debug mode based on the pull request labels
	${{ contains(github.event.pull_request.labels.*.name, 'debug-toolchain-pre') }} && MATRIX_DEBUG="toolchain-pre"
	${{ contains(github.event.pull_request.labels.*.name, 'debug-toolchain-post') }} && MATRIX_DEBUG="toolchain-post"
	${{ contains(github.event.pull_request.labels.*.name, 'debug-hosttools') }} && MATRIX_DEBUG="hosttools"
	elif [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
	# Set configurations based on the user selection
	case '${{ github.event.inputs.host }}' in
	all) build_host_all="y";;
	linux-x86_64) build_host_linux_x86_64="y";;
	linux-aarch64) build_host_linux_aarch64="y";;
	macos-x86_64) build_host_macos_x86_64="y";;
	macos-aarch64) build_host_macos_aarch64="y";;
	windows-x86_64) build_host_windows_x86_64="y";;
	esac

	case '${{ github.event.inputs.target }}' in
	all) build_target_all="y";;
	aarch64-zephyr-elf) build_target_aarch64_zephyr_elf="y";;
	arc64-zephyr-elf) build_target_arc64_zephyr_elf="y";;
	arc-zephyr-elf) build_target_arc_zephyr_elf="y";;
	arm-zephyr-eabi) build_target_arm_zephyr_eabi="y";;
	microblazeel-zephyr-elf) build_target_microblazeel_zephyr_elf="y";;
	mips-zephyr-elf) build_target_mips_zephyr_elf="y";;
	nios2-zephyr-elf) build_target_nios2_zephyr_elf="y";;
	riscv64-zephyr-elf) build_target_riscv64_zephyr_elf="y";;
	sparc-zephyr-elf) build_target_sparc_zephyr_elf="y";;
	x86_64-zephyr-elf) build_target_x86_64_zephyr_elf="y";;
	xtensa-dc233c_zephyr-elf) build_target_xtensa_dc233c_zephyr_elf="y";;
	xtensa-espressif_esp32_zephyr-elf) build_target_xtensa_espressif_esp32_zephyr_elf="y";;
	xtensa-espressif_esp32s2_zephyr-elf) build_target_xtensa_espressif_esp32s2_zephyr_elf="y";;
	xtensa-espressif_esp32s3_zephyr-elf) build_target_xtensa_espressif_esp32s3_zephyr_elf="y";;
	xtensa-intel_ace15_mtpm_zephyr-elf) build_target_xtensa_intel_ace15_mtpm_zephyr_elf="y";;
	xtensa-intel_tgl_adsp_zephyr-elf) build_target_xtensa_intel_tgl_adsp_zephyr_elf="y";;
	xtensa-mtk_mt8195_adsp_zephyr-elf) build_target_xtensa_mtk_mt8195_adsp_zephyr_elf="y";;
	xtensa-nxp_imx_adsp_zephyr-elf) build_target_xtensa_nxp_imx_adsp_zephyr_elf="y";;
	xtensa-nxp_imx8m_adsp_zephyr-elf) build_target_xtensa_nxp_imx8m_adsp_zephyr_elf="y";;
	xtensa-nxp_imx8ulp_adsp_zephyr-elf) build_target_xtensa_nxp_imx8ulp_adsp_zephyr_elf="y";;
	xtensa-nxp_rt500_adsp_zephyr-elf) build_target_xtensa_nxp_rt500_adsp_zephyr_elf="y";;
	xtensa-nxp_rt600_adsp_zephyr-elf) build_target_xtensa_nxp_rt600_adsp_zephyr_elf="y";;
	xtensa-sample_controller_zephyr-elf) build_target_xtensa_sample_controller_zephyr_elf="y";;
	esac

	MATRIX_DEBUG="${{ github.event.inputs.debug }}"
	else
	# Build all for pushes and releases
	build_host_all="y"
	build_target_all="y"
	fi

	if [ "${build_host_all}" == "y" ]; then
	build_host_linux_x86_64="y"
	build_host_linux_aarch64="y"
	build_host_macos_x86_64="y"
	build_host_macos_aarch64="y"
	build_host_windows_x86_64="y"
	fi

	if [ "${build_target_all}" == "y" ]; then
	build_target_aarch64_zephyr_elf="y"
	build_target_arc64_zephyr_elf="y"
	build_target_arc_zephyr_elf="y"
	build_target_arm_zephyr_eabi="y"
	build_target_microblazeel_zephyr_elf="y"
	build_target_mips_zephyr_elf="y"
	build_target_nios2_zephyr_elf="y"
	build_target_riscv64_zephyr_elf="y"
	build_target_sparc_zephyr_elf="y"
	build_target_x86_64_zephyr_elf="y"
	build_target_xtensa_dc233c_zephyr_elf="y"
	build_target_xtensa_espressif_esp32_zephyr_elf="y"
	build_target_xtensa_espressif_esp32s2_zephyr_elf="y"
	build_target_xtensa_espressif_esp32s3_zephyr_elf="y"
	build_target_xtensa_intel_ace15_mtpm_zephyr_elf="y"
	build_target_xtensa_intel_tgl_adsp_zephyr_elf="y"
	build_target_xtensa_mtk_mt8195_adsp_zephyr_elf="y"
	build_target_xtensa_nxp_imx_adsp_zephyr_elf="y"
	build_target_xtensa_nxp_imx8m_adsp_zephyr_elf="y"
	build_target_xtensa_nxp_imx8ulp_adsp_zephyr_elf="y"
	build_target_xtensa_nxp_rt500_adsp_zephyr_elf="y"
	build_target_xtensa_nxp_rt600_adsp_zephyr_elf="y"
	build_target_xtensa_sample_controller_zephyr_elf="y"
	fi

	# Build 'linux_x86_64' by default if no host is selected
	list_build_host=(${!build_host_@})
	[ "${#list_build_host[@]}" == "0" ] && build_host_linux_x86_64="y"

	# Generate host list
	MATRIX_HOSTS='['

	if [ "${build_host_linux_x86_64}" == "y" ]; then
	MATRIX_HOSTS+='{
	"name": "linux-x86_64",
	"runner": "zephyr-runner-linux-x64-4xlarge",
	"container": "ghcr.io/zephyrproject-rtos/sdk-build:v1.2.3",
	"archive": "tar.xz"
	},'
	fi

	if [ "${build_host_linux_aarch64}" == "y" ]; then
	MATRIX_HOSTS+='{
	"name": "linux-aarch64",
	"runner": "zephyr-runner-linux-arm64-4xlarge",
	"container": "ghcr.io/zephyrproject-rtos/sdk-build:v1.2.3",
	"archive": "tar.xz"
	},'
	fi

	if [ "${build_host_macos_x86_64}" == "y" ]; then
	MATRIX_HOSTS+='{
	"name": "macos-x86_64",
	"runner": "zephyr-runner-macos-arm64-2xlarge",
	"container": "",
	"archive": "tar.xz"
	},'
	fi

	if [ "${build_host_macos_aarch64}" == "y" ]; then
	MATRIX_HOSTS+='{
	"name": "macos-aarch64",
	"runner": "zephyr-runner-macos-arm64-2xlarge",
	"container": "",
	"archive": "tar.xz"
	},'
	fi

	if [ "${build_host_windows_x86_64}" == "y" ]; then
	MATRIX_HOSTS+='{
	"name": "windows-x86_64",
	"runner": "zephyr-runner-linux-x64-4xlarge",
	"container": "ghcr.io/zephyrproject-rtos/sdk-build:v1.2.3",
	"archive": "7z"
	},'
	fi

	MATRIX_HOSTS+=']'

	# Generate target list
	MATRIX_TARGETS='['
	[ "${build_target_aarch64_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"aarch64-zephyr-elf",'
	[ "${build_target_arc64_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"arc64-zephyr-elf",'
	[ "${build_target_arc_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"arc-zephyr-elf",'
	[ "${build_target_arm_zephyr_eabi}" == "y" ] && MATRIX_TARGETS+='"arm-zephyr-eabi",'
	[ "${build_target_microblazeel_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"microblazeel-zephyr-elf",'
	[ "${build_target_mips_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"mips-zephyr-elf",'
	[ "${build_target_nios2_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"nios2-zephyr-elf",'
	[ "${build_target_riscv64_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"riscv64-zephyr-elf",'
	[ "${build_target_sparc_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"sparc-zephyr-elf",'
	[ "${build_target_x86_64_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"x86_64-zephyr-elf",'
	[ "${build_target_xtensa_dc233c_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-dc233c_zephyr-elf",'
	[ "${build_target_xtensa_espressif_esp32_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-espressif_esp32_zephyr-elf",'
	[ "${build_target_xtensa_espressif_esp32s2_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-espressif_esp32s2_zephyr-elf",'
	[ "${build_target_xtensa_espressif_esp32s3_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-espressif_esp32s3_zephyr-elf",'
	[ "${build_target_xtensa_intel_ace15_mtpm_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-intel_ace15_mtpm_zephyr-elf",'
	[ "${build_target_xtensa_intel_tgl_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-intel_tgl_adsp_zephyr-elf",'
	[ "${build_target_xtensa_mtk_mt8195_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-mtk_mt8195_adsp_zephyr-elf",'
	[ "${build_target_xtensa_nxp_imx_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-nxp_imx_adsp_zephyr-elf",'
	[ "${build_target_xtensa_nxp_imx8m_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-nxp_imx8m_adsp_zephyr-elf",'
	[ "${build_target_xtensa_nxp_imx8ulp_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-nxp_imx8ulp_adsp_zephyr-elf",'
	[ "${build_target_xtensa_nxp_rt500_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-nxp_rt500_adsp_zephyr-elf",'
	[ "${build_target_xtensa_nxp_rt600_adsp_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-nxp_rt600_adsp_zephyr-elf",'
	[ "${build_target_xtensa_sample_controller_zephyr_elf}" == "y" ] && MATRIX_TARGETS+='"xtensa-sample_controller_zephyr-elf",'
	MATRIX_TARGETS+=']'

	# Generate test environment list
	MATRIX_TESTENVS='['

	if [ "${build_host_linux_x86_64}" == "y" ]; then
	MATRIX_TESTENVS+='{
	"name": "ubuntu-20.04-x86_64",
	"runner": "zephyr-runner-linux-x64-4xlarge",
	"container": "ghcr.io/zephyrproject-rtos/ci:master",
	"bundle-host": "linux-x86_64",
	"bundle-archive": "tar.xz"
	},'
	fi

	if [ "${build_host_linux_aarch64}" == "y" ]; then
	MATRIX_TESTENVS+='{
	"name": "ubuntu-20.04-aarch64",
	"runner": "zephyr-runner-linux-arm64-4xlarge",
	"container": "ghcr.io/zephyrproject-rtos/ci:master",
	"bundle-host": "linux-aarch64",
	"bundle-archive": "tar.xz"
	},'
	fi

	if [ "${build_host_macos_x86_64}" == "y" ]; then
	MATRIX_TESTENVS+='{
	"name": "macos-11-x86_64",
	"runner": "zephyr-runner-macos-arm64-2xlarge",
	"container": "",
	"bundle-host": "macos-x86_64",
	"bundle-archive": "tar.xz"
	},'
	fi

	if [ "${build_host_macos_aarch64}" == "y" ]; then
	MATRIX_TESTENVS+='{
	"name": "macos-11-aarch64",
	"runner": "zephyr-runner-macos-arm64-2xlarge",
	"container": "",
	"bundle-host": "macos-aarch64",
	"bundle-archive": "tar.xz"
	},'
	fi

	if [ "${build_host_windows_x86_64}" == "y" ]; then
	MATRIX_TESTENVS+='{
	"name": "windows-2019-x86_64",
	"runner": "windows-2019-8c",
	"container": "",
	"bundle-host": "windows-x86_64",
	"bundle-archive": "7z"
	},'
	fi

	MATRIX_TESTENVS+=']'

	# Escape control characters because GitHub Actions
	MATRIX_HOSTS="${MATRIX_HOSTS//'%'/''}"
	MATRIX_HOSTS="${MATRIX_HOSTS//$'\n'/''}"
	MATRIX_HOSTS="${MATRIX_HOSTS//$'\r'/''}"
	MATRIX_TARGETS="${MATRIX_TARGETS//'%'/''}"
	MATRIX_TARGETS="${MATRIX_TARGETS//$'\n'/''}"
	MATRIX_TARGETS="${MATRIX_TARGETS//$'\r'/''}"
	MATRIX_TESTENVS="${MATRIX_TESTENVS//'%'/''}"
	MATRIX_TESTENVS="${MATRIX_TESTENVS//$'\n'/''}"
	MATRIX_TESTENVS="${MATRIX_TESTENVS//$'\r'/''}"

	# Remove trailing comma
	MATRIX_HOSTS=$(echo "${MATRIX_HOSTS}" \| sed -zr 's/,([^,]*$)/\1/')
	MATRIX_TARGETS=$(echo "${MATRIX_TARGETS}" \| sed -zr 's/,([^,]*$)/\1/')
	MATRIX_TESTENVS=$(echo "${MATRIX_TESTENVS}" \| sed -zr 's/,([^,]*$)/\1/')

	# Output matrix variables
	echo "hosts=${MATRIX_HOSTS}" >> $GITHUB_OUTPUT
	echo "targets=${MATRIX_TARGETS}" >> $GITHUB_OUTPUT
	echo "testenvs=${MATRIX_TESTENVS}" >> $GITHUB_OUTPUT
	echo "debug=${MATRIX_DEBUG}" >> $GITHUB_OUTPUT

	# Prepare configuration report
	CONFIG_REPORT=${RUNNER_TEMP}/config-report.txt

	echo "Hosts:" > ${CONFIG_REPORT}
	echo "$(echo "${MATRIX_HOSTS}" \| jq)" >> ${CONFIG_REPORT}
	echo "" >> ${CONFIG_REPORT}

	echo "Targets:" >> ${CONFIG_REPORT}
	echo "$(echo "${MATRIX_TARGETS}" \| jq)" >> ${CONFIG_REPORT}
	echo "" >> ${CONFIG_REPORT}

	echo "Test Environments:" >> ${CONFIG_REPORT}
	echo "$(echo "${MATRIX_TESTENVS}" \| jq)" >> ${CONFIG_REPORT}

	CONFIG_REPORT_CONTENT=$(cat ${CONFIG_REPORT})
	CONFIG_REPORT_CONTENT="${CONFIG_REPORT_CONTENT//'%'/'%25'}"
	CONFIG_REPORT_CONTENT="${CONFIG_REPORT_CONTENT//$'\n'/'%0A'}"
	CONFIG_REPORT_CONTENT="${CONFIG_REPORT_CONTENT//$'\r'/'%0D'}"
	echo "::notice:: ${CONFIG_REPORT_CONTENT}"

	# Build toolchain
	build-toolchain:
	name: Toolchain ${{ matrix.target }} (${{ matrix.host.name }})
	needs: setup
	runs-on: ${{ matrix.host.runner }}
	container: ${{ matrix.host.container }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	host: ${{ fromJSON(needs.setup.outputs.hosts) }}
	target: ${{ fromJSON(needs.setup.outputs.targets) }}

	steps:
	# - name: echo-default-env-variables
	# run: \|
	# whoami
	# echo "Shell: ${SHELL}"
	# echo "Home: ${HOME}"
	# echo "RUNNER_NAME: ${RUNNER_NAME}"
	# echo "RUNNER_TEMP: ${RUNNER_TEMP}"
	# echo "GITHUB_WORKFLOW: ${GITHUB_WORKFLOW}"
	# echo "GITHUB_ACTIONS: ${GITHUB_ACTIONS}"
	# echo "GITHUB_ACTOR: ${GITHUB_ACTOR}"
	# echo "GITHUB_REPOSITORY: ${GITHUB_REPOSITORY}"
	# echo "GITHUB_EVENT_NAME: ${GITHUB_EVENT_NAME}"
	# echo "GITHUB_WORKSPACE: ${GITHUB_WORKSPACE}"
	# echo "GITHUB_SHA: ${GITHUB_SHA}"
	# echo "GITHUB_REF: ${GITHUB_REF}"

	- name: Set up build environment (Linux)
	if: ${{ runner.os == 'Linux' }}
	run: \|
	# Create workspace directory
	WORKSPACE="${RUNNER_TEMP}/workspace"
	sudo mkdir -p ${WORKSPACE}

	# Clean up working directories
	shopt -s dotglob
	sudo rm -rf ${GITHUB_WORKSPACE}/*
	sudo rm -rf ${WORKSPACE}/*
	shopt -u dotglob

	# Allow non-root access to the working directories
	sudo chmod -R 777 ${GITHUB_WORKSPACE}
	sudo chmod -R 777 ${RUNNER_TEMP}

	# Install common dependencies
	sudo apt-get update
	sudo apt-get install -y autoconf automake bison flex gettext \
	help2man libboost-dev libboost-regex-dev \
	libncurses5-dev libtool-bin libtool-doc \
	pkg-config texinfo p7zip

	# Install dependencies for cross compilation
	if [ "${{ matrix.host.name }}" == "windows-x86_64" ]; then
	# Install MinGW-w64 cross toolchain
	sudo apt-get install -y binutils-mingw-w64 gcc-mingw-w64 \
	g++-mingw-w64

	# Build and install libboost-regex for MinGW-w64 host
	## Check out Boost library source code
	mkdir -p ${WORKSPACE}/boost
	pushd ${WORKSPACE}/boost

	git clone \
	--branch boost-1.73.0 --depth 1 \
	https://github.com/boostorg/boost.git \
	src

	cd src
	git submodule update --init --depth 1

	## Bootstrap boost library build system with MinGW-w64 compiler
	./bootstrap.sh --with-toolset=gcc --with-libraries=regex --without-icu

	sed -i \
	's/using gcc ;/using gcc : mingw : x86_64-w64-mingw32-g++ ;/g' \
	project-config.jam

	## Build and install boost-regex library
	sudo ./b2 install \
	toolset=gcc-mingw link=static threading=multi variant=release \
	--prefix=/usr/x86_64-w64-mingw32

	## Clean up to reduce disk usage
	popd
	sudo rm -rf ${WORKSPACE}/boost
	fi

	# Set environment variables
	echo "TAR=tar" >> $GITHUB_ENV
	echo "WORKSPACE=${WORKSPACE}" >> $GITHUB_ENV

	- name: Set up build environment (macOS)
	if: ${{ runner.os == 'macOS' }}
	run: \|
	# Delete workspace from the previous run
	WORKSPACE="/Volumes/Workspace"
	if [ -d ${WORKSPACE} ]; then
	# Get disk device name
	OLDDISK=$(diskutil info -plist "${WORKSPACE}" \|
	plutil -extract ParentWholeDisk xml1 - -o - \|
	sed -n "s/.<string>$.$<\/string>.*/\1/p")

	# Force unmount and eject to deallocate disk blocks
	if [ ! -z "${OLDDISK}" ]; then
	diskutil unmountDisk force ${OLDDISK}
	diskutil eject ${OLDDISK}
	fi
	fi

	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	rm -f ${RUNNER_TEMP}/Workspace.sparseimage
	shopt -u dotglob

	# Create case-sensitive workspace volume for macOS
	hdiutil create ${RUNNER_TEMP}/Workspace.sparseimage \
	-volname Workspace -type SPARSE -size 70g -fs HFSX
	hdiutil mount ${RUNNER_TEMP}/Workspace.sparseimage -mountpoint ${WORKSPACE}

	# Install required dependencies if running inside a GitHub-hosted runner
	# (self-hosted runners are expected to provide all required dependencies)
	if [[ "${{ matrix.host.runner }}" =~ ^macos.* ]]; then
	brew install autoconf automake bash binutils boost coreutils gawk \
	gnu-sed gnu-tar help2man meson ncurses ninja pkg-config
	fi

	# Install dependencies for cross compilation
	if [ "${{ matrix.host.name }}" == "macos-x86_64" ]; then
	# Clone AArch64-x86 crosskit
	git clone \
	https://github.com/stephanosio/crosskit-x86_64-apple-darwin.git \
	${WORKSPACE}/crosskit

	# Make crosskit available in PATH
	echo "${WORKSPACE}/crosskit/scripts" >> $GITHUB_PATH
	fi

	# Make Python 3.8 available in PATH
	echo "${HOMEBREW_PREFIX}/opt/[email protected]/bin" >> $GITHUB_PATH

	# Set environment variables
	echo "TAR=gtar" >> $GITHUB_ENV
	echo "WORKSPACE=${WORKSPACE}" >> $GITHUB_ENV

	- name: Check out source code
	if: ${{ github.event_name != 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	submodules: recursive
	persist-credentials: false

	- name: Check out source code (pull request)
	if: ${{ github.event_name == 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	submodules: recursive
	persist-credentials: false

	- name: Build crosstool-ng
	run: \|
	# Configure macOS build environment
	if [ "$RUNNER_OS" == "macOS" ]; then
	export PATH="$PATH:${HOMEBREW_PREFIX}/opt/binutils/bin"
	export CPPFLAGS="-I${HOMEBREW_PREFIX}/opt/ncurses/include -I${HOMEBREW_PREFIX}/opt/gettext/include"
	export LDFLAGS="-L${HOMEBREW_PREFIX}/opt/ncurses/lib -L${HOMEBREW_PREFIX}/opt/gettext/lib"
	fi

	# Create build directory
	pushd ${WORKSPACE}
	mkdir -p crosstool-ng-build
	cd crosstool-ng-build

	# Bootstrap crosstool-ng
	pushd ${GITHUB_WORKSPACE}/crosstool-ng
	./bootstrap
	popd

	# Build and install crosstool-ng
	${GITHUB_WORKSPACE}/crosstool-ng/configure --prefix=${WORKSPACE}/crosstool-ng
	make
	make install

	# Clean up build directory to reduce disk usage
	popd
	rm -rf ${WORKSPACE}/crosstool-ng-build

	# Export crosstool-ng executable path
	echo "CT_NG=${WORKSPACE}/crosstool-ng/bin/ct-ng" >> $GITHUB_ENV

	- name: Test crosstool-ng
	run: \|
	${CT_NG} version

	- name: Download version information
	uses: actions/download-artifact@v3
	with:
	name: version
	path: ${{ runner.temp }}

	- name: Configure AWS Credentials
	uses: aws-actions/configure-aws-credentials@v1-node16
	with:
	aws-access-key-id: ${{ secrets.AWS_CACHE_SDK_ACCESS_KEY_ID }}
	aws-secret-access-key: ${{ secrets.AWS_CACHE_SDK_SECRET_ACCESS_KEY }}
	aws-region: us-east-1

	- name: Download cached source files
	continue-on-error: true
	run: \|
	SRC_CACHE_BASE="s3://cache-sdk/crosstool-ng-sources"
	SRC_CACHE_DIR="${{ matrix.host.name }}/${{ matrix.target }}"
	SRC_CACHE_URI="${SRC_CACHE_BASE}/${SRC_CACHE_DIR}"

	# Download cached source files
	mkdir -p ${WORKSPACE}/sources
	pushd ${WORKSPACE}/sources
	aws s3 sync ${SRC_CACHE_URI} .
	popd

	# Export environment variables
	echo "SRC_CACHE_URI=${SRC_CACHE_URI}" >> $GITHUB_ENV

	- name: Setup debug session (pre)
	if: always() && needs.setup.outputs.debug == 'toolchain-pre'
	uses: mxschmitt/action-tmate@v3
	with:
	limit-access-to-actor: true

	- name: Build toolchain
	run: \|
	# Set output path
	export CT_PREFIX="${WORKSPACE}/output"

	# Create build directory
	mkdir -p ${WORKSPACE}/build
	pushd ${WORKSPACE}/build

	# Load default target configurations
	cat ${GITHUB_WORKSPACE}/configs/common.config \
	${GITHUB_WORKSPACE}/configs/${{ matrix.target }}.config \
	> .config

	# Set version information
	cat <<EOF >> .config
	CT_SHOW_CT_VERSION=n
	CT_TOOLCHAIN_PKGVERSION="${{ env.BUNDLE_NAME }} $(<${RUNNER_TEMP}/version)"
	CT_TOOLCHAIN_BUGURL="${{ env.BUG_URL }}"
	EOF

	# Set environment configuration
	cat <<EOF >> .config
	CT_LOCAL_TARBALLS_DIR="${WORKSPACE}/sources"
	CT_OVERLAY_LOCATION="${GITHUB_WORKSPACE}/overlays"
	EOF

	# Set logging configurations
	cat <<EOF >> .config
	CT_LOG_PROGRESS_BAR=n
	CT_LOG_EXTRA=y
	CT_LOG_LEVEL_MAX="EXTRA"
	EOF

	# Set Canadian cross compilation configurations
	if [ "${{ matrix.host.name }}" == "macos-x86_64" ]; then
	# Building for macos-x86_64 on macos-aarch64
	cat <<EOF >> .config
	CT_CANADIAN=y
	CT_HOST="x86_64-apple-darwin"
	EOF
	elif [ "${{ matrix.host.name }}" == "windows-x86_64" ]; then
	# Building for windows-x86_64 on linux-x86_64
	cat <<EOF >> .config
	CT_CANADIAN=y
	CT_HOST="x86_64-w64-mingw32"
	EOF
	fi

	# Configure GDB Python scripting support
	cat <<EOF >> .config
	CT_GDB_CROSS_PYTHON=y
	CT_GDB_CROSS_PYTHON_VARIANT=y
	EOF

	if [ "${{ matrix.host.name }}" == "macos-x86_64" ]; then
	# Clone crosskit-x86_64-darwin-libpython cross compilation kit
	git clone \
	https://github.com/stephanosio/crosskit-x86_64-darwin-libpython.git \
	${WORKSPACE}/crosskit-x86_64-darwin-libpython
	# Use Python 3.8.12
	export LIBPYTHON_KIT_ROOT=${WORKSPACE}/crosskit-x86_64-darwin-libpython/python-3.8.12
	# Set Python configuration resolver for GDB
	cat <<EOF >> .config
	CT_GDB_CROSS_PYTHON_BINARY="${LIBPYTHON_KIT_ROOT}/bin/python"
	EOF
	elif [ "${{ matrix.host.name }}" == "windows-x86_64" ]; then
	# Clone crosskit-mingw-w64-libpython cross compilation kit
	git clone \
	https://github.com/stephanosio/crosskit-mingw-w64-libpython.git \
	${WORKSPACE}/crosskit-mingw-w64-libpython
	# Use Python 3.8.3
	export LIBPYTHON_KIT_ROOT=${WORKSPACE}/crosskit-mingw-w64-libpython/python-3.8.3
	# Set Python configuration resolver for GDB
	cat <<EOF >> .config
	CT_GDB_CROSS_PYTHON_BINARY="${LIBPYTHON_KIT_ROOT}/bin/python"
	EOF
	else
	# Use Python 3.8 for non-Canadian Linux and macOS builds
	cat <<EOF >> .config
	CT_GDB_CROSS_PYTHON_BINARY="python3.8"
	EOF
	fi

	# Allow building as root on Linux to avoid all sorts of container
	# permission issues with the GitHub Actions.
	if [ "$RUNNER_OS" == "Linux" ]; then
	cat <<EOF >> .config
	CT_EXPERIMENTAL=y
	CT_ALLOW_BUILD_AS_ROOT=y
	CT_ALLOW_BUILD_AS_ROOT_SURE=y
	EOF
	fi

	# Merge configurations
	${CT_NG} savedefconfig DEFCONFIG=build.config
	${CT_NG} distclean
	${CT_NG} defconfig DEFCONFIG=build.config

	# Build toolchain
	${CT_NG} build
	popd

	# Resolve output directory path
	if [ "${{ matrix.host.name }}" == "macos-x86_64" ]; then
	OUTPUT_BASE="${WORKSPACE}/output"
	OUTPUT_DIR="HOST-x86_64-apple-darwin"
	elif [ "${{ matrix.host.name }}" == "windows-x86_64" ]; then
	OUTPUT_BASE="${WORKSPACE}/output"
	OUTPUT_DIR="HOST-x86_64-w64-mingw32"
	else
	OUTPUT_BASE="${WORKSPACE}"
	OUTPUT_DIR="output"
	fi

	# Grant write permission for owner
	chmod -R u+w ${OUTPUT_BASE}/${OUTPUT_DIR}

	# Remove unneeded files from output directory
	pushd ${OUTPUT_BASE}/${OUTPUT_DIR}/${{ matrix.target }}
	rm -rf newlib-nano
	rm -f build.log.bz2
	popd

	# Rename Canadian cross-compiled toolchain output directory to
	# "output" for consistency
	if [ "${OUTPUT_DIR}" != "output" ]; then
	mv ${OUTPUT_BASE}/${OUTPUT_DIR} ${OUTPUT_BASE}/output
	OUTPUT_DIR="output"
	fi

	# Create archive
	ARCHIVE_NAME=toolchain_${{ matrix.host.name }}_${{ matrix.target }}
	ARCHIVE_FILE=${ARCHIVE_NAME}.${{ matrix.host.archive }}

	if [ "${{ matrix.host.archive }}" == "tar.xz" ]; then
	XZ_OPT="-T0" \
	${TAR} -Jcvf ${ARCHIVE_FILE} \
	--owner=0 --group=0 -C ${OUTPUT_BASE}/${OUTPUT_DIR} ${{ matrix.target }}
	elif [ "${{ matrix.host.archive }}" == "7z" ]; then
	pushd ${OUTPUT_BASE}/${OUTPUT_DIR}
	7z a -t7z -l ${GITHUB_WORKSPACE}/${ARCHIVE_FILE} ${{ matrix.target }}
	popd
	fi

	# Compute checksum
	md5sum ${ARCHIVE_FILE} > md5.sum
	sha256sum ${ARCHIVE_FILE} > sha256.sum

	- name: Setup debug session (post)
	if: always() && needs.setup.outputs.debug == 'toolchain-post'
	uses: mxschmitt/action-tmate@v3
	with:
	limit-access-to-actor: true

	- name: Sync downloaded source files to cache
	continue-on-error: true
	run: \|
	pushd ${WORKSPACE}/sources
	aws s3 sync . ${SRC_CACHE_URI}
	popd

	- name: Prepare toolchain build log
	if: always()
	run: \|
	# Move build log file out of workspace
	mv ${WORKSPACE}/build/build.log ${{ matrix.target }}.log

	- name: Upload toolchain build log
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: log_${{ matrix.host.name }}_${{ matrix.target }}
	path: ${{ matrix.target }}.log

	- name: Upload toolchain build artifact
	uses: actions/upload-artifact@v3
	with:
	name: toolchain_${{ matrix.host.name }}_${{ matrix.target }}
	path: \|
	toolchain_${{ matrix.host.name }}_${{ matrix.target }}.${{ matrix.host.archive }}
	md5.sum
	sha256.sum

	# Build host tools
	build-hosttools:
	name: Host Tools (${{ matrix.host.name }})
	needs: setup
	runs-on: ${{ matrix.host.runner }}
	container: ${{ matrix.host.container }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	host: ${{ fromJSON(needs.setup.outputs.hosts) }}

	steps:
	- name: Apply container owner mismatch workaround
	run: \|
	# FIXME: The owner UID of the GITHUB_WORKSPACE directory may not
	# match the container user UID because of the way GitHub
	# Actions runner is implemented. Remove this workaround when
	# GitHub comes up with a fundamental fix for this problem.
	git config --global --add safe.directory '*'

	- name: Set up build environment (Linux)
	if: ${{ runner.os == 'Linux' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	sudo rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Set environment variables
	echo "TAR=tar" >> $GITHUB_ENV

	- name: Set up build environment (macOS)
	if: ${{ runner.os == 'macOS' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Set environment variables
	echo "TAR=gtar" >> $GITHUB_ENV

	- name: Check out source code
	if: ${{ github.event_name != 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	submodules: recursive
	persist-credentials: false

	- name: Check out source code (pull request)
	if: ${{ github.event_name == 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	submodules: recursive
	persist-credentials: false

	- name: Configure AWS Credentials
	uses: aws-actions/configure-aws-credentials@v1-node16
	with:
	aws-access-key-id: ${{ secrets.AWS_CACHE_SDK_ACCESS_KEY_ID }}
	aws-secret-access-key: ${{ secrets.AWS_CACHE_SDK_SECRET_ACCESS_KEY }}
	aws-region: us-east-1

	- name: Download cached source files (Linux)
	if: startsWith(matrix.host.name, 'linux-')
	continue-on-error: true
	run: \|
	SRC_CACHE_BASE="s3://cache-sdk/poky-sources"
	SRC_CACHE_DIR="${{ matrix.host.name }}"
	SRC_CACHE_URI="${SRC_CACHE_BASE}/${SRC_CACHE_DIR}"
	POKY_DOWNLOADS="${RUNNER_TEMP}/poky-downloads"

	# Download cached source files
	mkdir -p ${POKY_DOWNLOADS}
	pushd ${POKY_DOWNLOADS}
	aws s3 sync ${SRC_CACHE_URI} .
	popd

	# Export environment variables
	echo "SRC_CACHE_URI=${SRC_CACHE_URI}" >> $GITHUB_ENV
	echo "POKY_DOWNLOADS=${POKY_DOWNLOADS}" >> $GITHUB_ENV

	- name: Build Linux host tools
	if: startsWith(matrix.host.name, 'linux-')
	run: \|
	POKY_BASE=${GITHUB_WORKSPACE}/meta-zephyr-sdk
	export META_DOWNLOADS="${POKY_DOWNLOADS}"

	# Check out Poky
	${POKY_BASE}/scripts/meta-zephyr-sdk-clone.sh

	# Patch Poky sanity configuration to allow building as root
	sed -i '/^INHERIT/ s/./#&/' poky/meta/conf/sanity.conf

	# Build meta-zephyr-sdk
	${POKY_BASE}/scripts/meta-zephyr-sdk-build.sh tools

	# Prepare artifact for upload
	ARTIFACT_ROOT="${POKY_BASE}/scripts/toolchains"
	ARTIFACT=(${ARTIFACT_ROOT}/hosttools.sh)
	ARTIFACT=${ARTIFACT[0]}
	ARTIFACT=$(basename ${ARTIFACT})
	ARCHIVE_NAME=hosttools_${{ matrix.host.name }}
	ARCHIVE_FILE=hosttools_${{ matrix.host.name }}.tar.xz

	XZ_OPT="-T0" \
	${TAR} -Jcvf ${ARCHIVE_FILE} --owner=0 --group=0 \
	-C ${ARTIFACT_ROOT} ${ARTIFACT}

	# Compute checksum
	md5sum ${ARCHIVE_FILE} > md5.sum
	sha256sum ${ARCHIVE_FILE} > sha256.sum

	- name: Setup debug session
	if: always() && needs.setup.outputs.debug == 'hosttools'
	uses: mxschmitt/action-tmate@v3
	with:
	limit-access-to-actor: true

	- name: Sync downloaded source files to cache (Linux)
	if: startsWith(matrix.host.name, 'linux-')
	continue-on-error: true
	run: \|
	pushd ${POKY_DOWNLOADS}
	rm -rf git2
	rm -rf svn
	aws s3 sync . ${SRC_CACHE_URI}
	popd

	- name: Upload toolchain build artifact
	if: startsWith(matrix.host.name, 'linux-') # FIXME: Do for all
	uses: actions/upload-artifact@v3
	with:
	name: hosttools_${{ matrix.host.name }}
	path: \|
	hosttools_${{ matrix.host.name }}.${{ matrix.host.archive }}
	md5.sum
	sha256.sum

	# TODO: Add host tool build process for macOS hosts.
	# TODO: Add host tool build process for Windows hosts.

	# Build CMake package
	build-cmake-pkg:
	name: CMake Package (${{ matrix.host.name }})
	needs: setup
	runs-on: ${{ matrix.host.runner }}
	container: ${{ matrix.host.container }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	host: ${{ fromJSON(needs.setup.outputs.hosts) }}

	steps:
	- name: Set up build environment (Linux)
	if: ${{ runner.os == 'Linux' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	sudo rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install common dependencies
	sudo apt-get update
	sudo apt-get install -y p7zip

	# Set environment variables
	echo "TAR=tar" >> $GITHUB_ENV

	- name: Set up build environment (macOS)
	if: ${{ runner.os == 'macOS' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install required dependencies if running inside a GitHub-hosted runner
	# (self-hosted runners are expected to provide all required dependencies)
	if [[ "${{ matrix.host.runner }}" =~ ^macos.* ]]; then
	brew install gnu-tar
	fi

	# Set environment variables
	echo "TAR=gtar" >> $GITHUB_ENV

	- name: Check out source code
	if: ${{ github.event_name != 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	persist-credentials: false

	- name: Check out source code (pull request)
	if: ${{ github.event_name == 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	persist-credentials: false

	- name: Build CMake package
	run: \|
	# Create CMake package archive
	ARCHIVE_NAME=cmake_${{ matrix.host.name }}
	ARCHIVE_FILE=${ARCHIVE_NAME}.${{ matrix.host.archive }}

	if [ "${{ matrix.host.archive }}" == "tar.xz" ]; then
	XZ_OPT="-T0" \
	${TAR} -Jcvf ${ARCHIVE_FILE} --owner=0 --group=0 \
	-C . cmake
	elif [ "${{ matrix.host.archive }}" == "7z" ]; then
	7z a -t7z -l ${ARCHIVE_FILE} cmake
	fi

	# Compute checksum
	md5sum ${ARCHIVE_FILE} > md5.sum
	sha256sum ${ARCHIVE_FILE} > sha256.sum

	- name: Upload CMake package build artifact
	uses: actions/upload-artifact@v3
	with:
	name: cmake_${{ matrix.host.name }}
	path: \|
	cmake_${{ matrix.host.name }}.${{ matrix.host.archive }}
	md5.sum
	sha256.sum

	# Build distribution bundle
	build-dist-bundle:
	name: Distribution Bundle (${{ matrix.host.name }})
	needs: [ setup, build-toolchain, build-hosttools, build-cmake-pkg ]
	runs-on: ${{ matrix.host.runner }}
	container: ${{ matrix.host.container }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	host: ${{ fromJSON(needs.setup.outputs.hosts) }}

	steps:
	- name: Set up build environment (Linux)
	if: ${{ runner.os == 'Linux' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	sudo rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install common dependencies
	sudo apt-get update
	sudo apt-get install -y jq p7zip

	# Set environment variables
	echo "TAR=tar" >> $GITHUB_ENV

	- name: Set up build environment (macOS)
	if: ${{ runner.os == 'macOS' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install required dependencies if running inside a GitHub-hosted runner
	# (self-hosted runners are expected to provide all required dependencies)
	if [[ "${{ matrix.host.runner }}" =~ ^macos.* ]]; then
	brew install coreutils gnu-tar jq
	fi

	# Set environment variables
	echo "TAR=gtar" >> $GITHUB_ENV

	- name: Check out source code
	if: ${{ github.event_name != 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	path: repository
	persist-credentials: false

	- name: Check out source code (pull request)
	if: ${{ github.event_name == 'pull_request_target' }}
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	path: repository
	persist-credentials: false

	- name: Download artifacts
	uses: actions/download-artifact@v3
	with:
	# NOTE: This downloads all build artifacts, including the toolchains and host tools for
	# the irrelevant hosts, because the download-artifact action does not support
	# specifying wildcards in the artifact name.
	path: artifacts

	- name: Create distribution bundle
	run: \|
	# Set environment variables
	HOST=${{ matrix.host.name }}
	EXT=${{ matrix.host.archive }}
	REPO_ROOT=${GITHUB_WORKSPACE}/repository
	ARTIFACT_ROOT=${GITHUB_WORKSPACE}/artifacts
	VERSION=$(<${ARTIFACT_ROOT}/version/version)
	ARCHIVE_DIR=${{ env.BUNDLE_PREFIX }}-${VERSION}
	ARCHIVE_NAME=${{ env.BUNDLE_PREFIX }}-${VERSION}_${HOST}

	echo "BUNDLE_ARCHIVE_NAME=${ARCHIVE_NAME}" >> $GITHUB_ENV

	if [ "${{ matrix.host.archive }}" == "tar.xz" ]; then
	EXTRACT="${TAR} -Jxvf"
	elif [ "${{ matrix.host.archive }}" == "7z" ]; then
	EXTRACT="7z x -o."
	fi

	# Create bundle directory
	mkdir ${ARCHIVE_DIR}
	pushd ${ARCHIVE_DIR}

	# Stage version file
	echo "${VERSION}" > sdk_version

	# Stage toolchain list file
	echo '${{ needs.setup.outputs.targets }}' \| jq -cr '.[]' > sdk_toolchains

	# Stage CMake package
	## Verify CMake package archive checksum
	pushd ${ARTIFACT_ROOT}/cmake_${HOST}
	md5sum --check md5.sum
	sha256sum --check sha256.sum
	popd

	## Extract CMake package archive
	${EXTRACT} ${ARTIFACT_ROOT}/cmake_${HOST}/cmake_${HOST}.${EXT}

	# Stage host tools
	HOSTTOOLS_ARTIFACT=hosttools_${HOST}
	if [ -d ${ARTIFACT_ROOT}/${HOSTTOOLS_ARTIFACT} ]; then
	# Verify host tools archive checksum
	pushd ${ARTIFACT_ROOT}/${HOSTTOOLS_ARTIFACT}
	md5sum --check md5.sum
	sha256sum --check sha256.sum
	popd

	# Extract host tools archive
	${EXTRACT} ${ARTIFACT_ROOT}/${HOSTTOOLS_ARTIFACT}/${HOSTTOOLS_ARTIFACT}.${EXT}
	fi

	# Stage setup script
	case ${{ matrix.host.name }} in
	linux-* \| macos-*)
	cp ${REPO_ROOT}/scripts/template_setup_posix setup.sh
	chmod +x setup.sh
	;;
	windows-*)
	cp ${REPO_ROOT}/scripts/template_setup_win setup.cmd
	;;
	esac
	popd

	# Create minimal (without toolchains) distribution bundle archive
	if [ "${{ matrix.host.archive }}" == "tar.xz" ]; then
	XZ_OPT="-T0" \
	${TAR} -Jcvf ${ARCHIVE_NAME}_minimal.${EXT} --owner=0 --group=0 \
	-C . ${ARCHIVE_DIR}
	elif [ "${{ matrix.host.archive }}" == "7z" ]; then
	7z a -t7z -l ${ARCHIVE_NAME}_minimal.${EXT} ${ARCHIVE_DIR}
	fi

	# Stage toolchains
	pushd ${ARCHIVE_DIR}

	## Generate target list from the workflow matrix
	TARGETS=$(echo '${{ needs.setup.outputs.targets }}' \| jq -cr '.[]')

	## Extract all toolchains
	for TARGET in ${TARGETS}; do
	TOOLCHAIN_ARTIFACT=toolchain_${HOST}_${TARGET}

	# Verify toolchain archive checksum
	pushd ${ARTIFACT_ROOT}/${TOOLCHAIN_ARTIFACT}
	md5sum --check md5.sum
	sha256sum --check sha256.sum
	popd

	# Extract toolchain archive
	${EXTRACT} ${ARTIFACT_ROOT}/${TOOLCHAIN_ARTIFACT}/${TOOLCHAIN_ARTIFACT}.${EXT}
	done
	popd

	# Create full distribution bundle archive
	if [ "${{ matrix.host.archive }}" == "tar.xz" ]; then
	XZ_OPT="-T0" \
	${TAR} -Jcvf ${ARCHIVE_NAME}.${EXT} --owner=0 --group=0 \
	-C . ${ARCHIVE_DIR}
	elif [ "${{ matrix.host.archive }}" == "7z" ]; then
	7z a -t7z -l ${ARCHIVE_NAME}.${EXT} ${ARCHIVE_DIR}
	fi

	# Compute checksum
	md5sum ${ARCHIVE_NAME}.${EXT} ${ARCHIVE_NAME}_minimal.${EXT} > md5.sum
	sha256sum ${ARCHIVE_NAME}.${EXT} ${ARCHIVE_NAME}_minimal.${EXT} > sha256.sum

	- name: Upload distribution bundle
	uses: actions/upload-artifact@v3
	with:
	name: ${{ env.BUNDLE_ARCHIVE_NAME }}
	path: \|
	${{ env.BUNDLE_ARCHIVE_NAME }}.${{ matrix.host.archive }}
	${{ env.BUNDLE_ARCHIVE_NAME }}_minimal.${{ matrix.host.archive }}
	md5.sum
	sha256.sum

	# Test distribution bundle
	test-dist-bundle:
	name: Test (${{ matrix.testenv.name }}) Subset ${{ matrix.subset }}
	needs: [ setup, build-dist-bundle ]
	runs-on: ${{ matrix.testenv.runner }}
	container: ${{ matrix.testenv.container }}

	defaults:
	run:
	shell: bash

	strategy:
	fail-fast: false
	matrix:
	testenv: ${{ fromJSON(needs.setup.outputs.testenvs) }}
	subset: [ 1, 2 ]

	env:
	SUBSET_COUNT: 2
	ZEPHYR_TOOLCHAIN_VARIANT: zephyr

	steps:
	- name: Set up Python
	if: ${{ runner.os == 'Windows' }}
	uses: actions/setup-python@v4
	with:
	# Force Python 3.10 because the twister is not compatible with a Python
	# version lower than 3.8 on Windows.
	python-version: '3.10'

	- name: Set up test environment (Linux)
	if: ${{ runner.os == 'Linux' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	sudo rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install required system packages
	sudo apt-get update
	sudo apt-get install -y dos2unix jq

	# Set environment variables
	echo "TAR=tar" >> $GITHUB_ENV
	echo "ARTIFACT_ROOT=${GITHUB_WORKSPACE}/artifacts" >> $GITHUB_ENV

	- name: Set up test environment (macOS)
	if: ${{ runner.os == 'macOS' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install required dependencies if running inside a GitHub-hosted runner
	# (self-hosted runners are expected to provide all required dependencies)
	if [[ "${{ matrix.host.runner }}" =~ ^macos.* ]]; then
	brew install ccache coreutils dos2unix dtc gperf jq ninja wget
	fi

	# Set environment variables
	echo "TAR=gtar" >> $GITHUB_ENV
	echo "ARTIFACT_ROOT=${GITHUB_WORKSPACE}/artifacts" >> $GITHUB_ENV

	- name: Set up test environment (Windows)
	if: ${{ runner.os == 'Windows' }}
	run: \|
	# Clean up working directories
	shopt -s dotglob
	rm -rf ${GITHUB_WORKSPACE}/*
	shopt -u dotglob

	# Install required system packages
	choco install ccache dtc-msys2 gperf jq ninja wget 7zip

	# Enable long paths support for Git
	git config --system core.longpaths true

	# Set environment variables
	echo "ARTIFACT_ROOT=${GITHUB_WORKSPACE}/artifacts" >> $GITHUB_ENV

	- name: Create Python virtual environment
	if: ${{ runner.os != 'Linux' }}
	run: \|
	# Create Python virtual environment
	python3 -m venv ${GITHUB_WORKSPACE}/venv

	# Resolve activation script path
	if [ "${{ runner.os }}" == "Windows" ]; then
	VENV_ACTIVATE="${GITHUB_WORKSPACE}/venv/Scripts/activate"
	else
	VENV_ACTIVATE="${GITHUB_WORKSPACE}/venv/bin/activate"
	fi

	# Test Python virtual environment
	source ${VENV_ACTIVATE}
	which python3
	which pip3

	# Install core components
	python3 -m pip install --upgrade pip
	pip3 install --upgrade setuptools wheel

	# Set environment variables
	echo "VENV=${GITHUB_WORKSPACE}/venv" >> $GITHUB_ENV
	echo "VENV_ACTIVATE=${VENV_ACTIVATE}" >> $GITHUB_ENV

	- name: Download version information
	uses: actions/download-artifact@v3
	with:
	name: version
	path: artifacts

	- name: Resolve distribution bundle name
	run: \|
	# Set base environment variables
	HOST=${{ matrix.testenv.bundle-host }}
	EXT=${{ matrix.testenv.bundle-archive }}
	VERSION=$(<${ARTIFACT_ROOT}/version)

	# Resolve distribution bundle name
	BUNDLE_NAME=${{ env.BUNDLE_PREFIX }}-${VERSION}_${HOST}
	BUNDLE_DIR=${{ env.BUNDLE_PREFIX }}-${VERSION}
	echo "BUNDLE_NAME=${BUNDLE_NAME}" >> $GITHUB_ENV
	echo "BUNDLE_DIR=${BUNDLE_DIR}" >> $GITHUB_ENV

	- name: Download distribution bundle
	uses: actions/download-artifact@v3
	with:
	name: ${{ env.BUNDLE_NAME }}
	path: artifacts

	- name: Install distribution bundle
	run: \|
	# Create tools directory
	mkdir -p tools

	# Verify distribution bundle archive checksum
	pushd ${ARTIFACT_ROOT}
	md5sum --check md5.sum
	sha256sum --check sha256.sum
	popd

	# Extract distribution bundle archive
	BUNDLE_FILE=${BUNDLE_NAME}.${{ matrix.testenv.bundle-archive }}
	if [ "${{ matrix.testenv.bundle-archive }}" == "tar.xz" ]; then
	${TAR} -Jxvf ${ARTIFACT_ROOT}/${BUNDLE_FILE} -C tools
	elif [ "${{ matrix.testenv.bundle-archive }}" == "7z" ]; then
	7z x -otools ${ARTIFACT_ROOT}/${BUNDLE_FILE}
	fi

	# Run setup script
	pushd ${GITHUB_WORKSPACE}/tools/${BUNDLE_DIR}

	if [ "${{ runner.os }}" == "Windows" ]; then
	# Shorten distribution bundle path on Windows
	subst s: ${PWD}
	pushd /s
	# NOTE: Escape forward slashes because MinGW (bash)
	# NOTE: A full path (using PWD) must be specified to ensure that the
	# setup script is launched from the shortened path.
	${PWD}/setup.cmd //t all //h //c
	popd
	else
	./setup.sh -t all -h -c
	fi

	# Clean up bundle archive to reduce disk usage
	rm -f ${ARTIFACT_ROOT}/${BUNDLE_FILE}

	popd

	- name: Install west
	run: \|
	# Activate Python virtual environment
	if [ ! -z "${VENV_ACTIVATE}" ]; then
	source ${VENV_ACTIVATE}
	fi

	# Install or upgrade west
	pip3 install --upgrade west

	- name: Set up Zephyr repository
	run: \|
	# Activate Python virtual environment
	if [ ! -z "${VENV_ACTIVATE}" ]; then
	source ${VENV_ACTIVATE}
	fi

	# Create Zephyr workspace
	ZEPHYR_WORKSPACE=${GITHUB_WORKSPACE}/zephyrproject
	west init ${ZEPHYR_WORKSPACE}
	cd ${ZEPHYR_WORKSPACE}

	# Check out specified Zephyr ref
	if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
	REF="${{ github.event.inputs.zephyr-ref }}"
	else
	REF="${{ env.ZEPHYR_REF }}"
	fi

	pushd zephyr
	git fetch origin ${REF}
	git checkout FETCH_HEAD
	popd

	# Clone Zephyr repositories
	west update
	west zephyr-export

	# Export variables
	echo "ZEPHYR_WORKSPACE=${ZEPHYR_WORKSPACE}" >> $GITHUB_ENV
	echo "ZEPHYR_ROOT=${ZEPHYR_WORKSPACE}/zephyr" >> $GITHUB_ENV

	- name: Install Python dependencies
	run: \|
	# Activate Python virtual environment
	if [ ! -z "${VENV_ACTIVATE}" ]; then
	source ${VENV_ACTIVATE}

	# Install Python dependencies from the checked out Zephyr repository
	# if running inside a virtual environment; otherwise, it is assumed
	# that the host already provides all the required dependencies.
	pip3 install -r ${ZEPHYR_ROOT}/scripts/requirements.txt
	fi

	- name: Run test suites
	run: \|
	# Activate Python virtual environment
	if [ ! -z "${VENV_ACTIVATE}" ]; then
	source ${VENV_ACTIVATE}
	fi

	# Create working directory
	mkdir -p test
	cd test

	# Set host-specific twister parameters
	if [ "${{ runner.os }}" != "Linux" ]; then
	# TODO: Remove `--build-only` when QEMU is available on non-Linux hosts
	HOST_ARGS+="--build-only "
	fi

	if [ "${{ runner.os }}" == "Windows" ]; then
	# Shorten twister output paths on Windows in order to work around the
	# long path issues
	HOST_ARGS+="--short-build-path "
	fi

	# Generate platform list from the target list
	TARGETS=$(echo '${{ needs.setup.outputs.targets }}' \| jq -cr '.[]' \| dos2unix)

	for TARGET in ${TARGETS}; do
	case ${TARGET} in
	aarch64-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_cortex_a53 "
	;;
	arc64-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_arc_hs6x "
	;;
	arc-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_arc_em "
	PLATFORM_ARGS+="-p qemu_arc_hs "
	;;
	arm-zephyr-eabi)
	PLATFORM_ARGS+="-p qemu_cortex_m0 "
	PLATFORM_ARGS+="-p mps2_an385 "
	PLATFORM_ARGS+="-p mps2_an521 "
	PLATFORM_ARGS+="-p mps3_an547 "
	;;
	# TODO: Release the microblaze arch source in a public repo
	# microblazeel-zephyr-elf)
	# PLATFORM_ARGS+="-p qemu_microblaze "
	# ;;
	mips-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_malta "
	;;
	nios2-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_nios2 "
	;;
	riscv64-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_riscv32 "
	PLATFORM_ARGS+="-p qemu_riscv32e "
	PLATFORM_ARGS+="-p qemu_riscv64 "
	;;
	sparc-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_leon3 "
	;;
	x86_64-zephyr-elf)
	PLATFORM_ARGS+="-p qemu_x86 "
	PLATFORM_ARGS+="-p qemu_x86_64 "
	;;
	xtensa-dc233c_zephyr-elf)
	PLATFORM_ARGS+="-p qemu_xtensa_mmu "
	;;
	xtensa-espressif_esp32_zephyr-elf)
	PLATFORM_ARGS+="-p esp32_devkitc_wroom "
	;;
	xtensa-espressif_esp32s2_zephyr-elf)
	PLATFORM_ARGS+="-p esp32s2_saola "
	;;
	xtensa-espressif_esp32s3_zephyr-elf)
	PLATFORM_ARGS+="-p esp32s3_devkitm "
	;;
	xtensa-intel_ace15_mtpm_zephyr-elf)
	PLATFORM_ARGS+="-p intel_adsp_ace15_mtpm "
	;;
	xtensa-intel_tgl_adsp_zephyr-elf)
	PLATFORM_ARGS+="-p intel_adsp_cavs25 "
	;;
	xtensa-nxp_imx_adsp_zephyr-elf)
	PLATFORM_ARGS+="-p nxp_adsp_imx8 "
	;;
	xtensa-nxp_imx8m_adsp_zephyr-elf)
	PLATFORM_ARGS+="-p nxp_adsp_imx8m "
	;;
	xtensa-nxp_imx8ulp_adsp_zephyr-elf)
	# FIXME: Disabled because nxp_adsp_imx8ulp support has not been
	# merged yet. Enable when zephyrproject-rtos/zephyr#63751
	# is merged.
	#PLATFORM_ARGS+="-p nxp_adsp_imx8ulp "
	;;
	xtensa-sample_controller_zephyr-elf)
	PLATFORM_ARGS+="-p qemu_xtensa "
	;;
	esac
	done

	# Generate test list
	TEST_ARGS="
	-T ${ZEPHYR_ROOT}/samples/hello_world
	-T ${ZEPHYR_ROOT}/tests/lib/newlib
	"

	# Run tests with twister
	TWISTER="${ZEPHYR_ROOT}/scripts/twister"
	${TWISTER} -v -N -M --force-color --inline-logs --retry-failed 3 \
	--force-toolchain \
	--subset ${{ matrix.subset }}/${{ env.SUBSET_COUNT }} \
	${HOST_ARGS} \
	${TEST_ARGS} \
	${PLATFORM_ARGS}

	- name: Publish test results
	if: always()
	uses: actions/upload-artifact@v3
	with:
	name: test_${{ matrix.testenv.name }}_${{ matrix.subset }}
	if-no-files-found: ignore
	path: test/twister-out/twister.xml

	# Post test result check
	test-result:
	name: Test Result
	needs: [ test-dist-bundle ]
	runs-on: ubuntu-20.04

	# NOTE: The 'test-result' job depends on the 'test-dist-bundle' job and
	# therefore only runs when all distribution bundle tests pass.
	#
	# The purpose of this job is to provide a checkpoint which the GitHub
	# branch protection rule can use to enforce the required checks for
	# merging pull requests, because GitHub does not support specifying a
	# job that is part of a matrix for this purpose.
	steps:
	- name: Summary
	run: \|
	echo "All passed"

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picolibc: Update to version 1.8.6 #745

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