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Added Command Line Option to Select Arm Zephyr Toolchain #12077

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Jun 30, 2025
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Added Command Line Option to Select Arm Zephyr Toolchain #12077

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92 changes: 71 additions & 21 deletions examples/arm/setup.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -19,13 +19,19 @@ OS="$(uname -s)"
root_dir="${script_dir}/ethos-u-scratch"
eula_acceptance=0
skip_toolchain_setup=0
target_toolchain=""
skip_fvp_setup=0
skip_vela_setup=0


# Figure out if setup.sh was called or sourced and save it into "is_script_sourced"
(return 0 2>/dev/null) && is_script_sourced=1 || is_script_sourced=0

# Global scope these so they can be set later
toolchain_url=""
toolchain_dir=""
toolchain_md5_checksum=""

if [[ "${ARCH}" == "x86_64" ]]; then
# FVPs
corstone300_url="https://developer.arm.com/-/media/Arm%20Developer%20Community/Downloads/OSS/FVP/Corstone-300/FVP_Corstone_SSE-300_11.22_20_Linux64.tgz?rev=018659bd574f4e7b95fa647e7836ccf4&hash=22A79103C6FA5FFA7AFF3BE0447F3FF9"
Expand All @@ -35,11 +41,6 @@ if [[ "${ARCH}" == "x86_64" ]]; then
corstone320_url="https://developer.arm.com/-/media/Arm%20Developer%20Community/Downloads/OSS/FVP/Corstone-320/FVP_Corstone_SSE-320_11.27_25_Linux64.tgz?rev=a507bffc219a4d5792f1192ab7002d89&hash=D9A824AA8227D2E679C9B9787FF4E8B6FBE3D7C6"
corstone320_model_dir="Linux64_GCC-9.3"
corstone320_md5_checksum="3deb3c68f9b2d145833f15374203514d"

# toochain
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi"
toolchain_md5_checksum="0601a9588bc5b9c99ad2b56133b7f118"
elif [[ "${ARCH}" == "aarch64" ]] || [[ "${ARCH}" == "arm64" ]]; then
# FVPs
corstone300_url="https://developer.arm.com/-/media/Arm%20Developer%20Community/Downloads/OSS/FVP/Corstone-300/FVP_Corstone_SSE-300_11.22_20_Linux64_armv8l.tgz?rev=9cc6e9a32bb947ca9b21fa162144cb01&hash=7657A4CF27D42E892E3F08D452AAB073"
Expand All @@ -49,17 +50,6 @@ elif [[ "${ARCH}" == "aarch64" ]] || [[ "${ARCH}" == "arm64" ]]; then
corstone320_url="https://developer.arm.com/-/media/Arm%20Developer%20Community/Downloads/OSS/FVP/Corstone-320/FVP_Corstone_SSE-320_11.27_25_Linux64_armv8l.tgz?rev=b6ebe0923cb84f739e017385fd3c333c&hash=8965C4B98E2FF7F792A099B08831FE3CB6120493"
corstone320_model_dir="Linux64_armv8l_GCC-9.3"
corstone320_md5_checksum="3889f1d80a6d9861ea4aa6f1c88dd0ae"

# toochain
if [[ "${OS}" == "Darwin" ]]; then
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi"
toolchain_md5_checksum="f1c18320bb3121fa89dca11399273f4e"
elif [[ "${OS}" == "Linux" ]]; then
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi"
toolchain_md5_checksum="303102d97b877ebbeb36b3158994b218"
fi
else
echo "[main] Error: only x86-64 & aarch64/arm64 architecture is supported for now!"; exit 1;
fi
Expand All @@ -73,7 +63,7 @@ vela_rev="8cac2b9a7204b57125a8718049519b091a98846c"
########

function print_usage() {
echo "Usage: $(basename $0) <--i-agree-to-the-contained-eula> [--root-dir path-to-a-scratch-dir] [--skip-fvp-setup] [--skip-toolchain-setup] [--skip-vela-setup]"
echo "Usage: $(basename $0) <--i-agree-to-the-contained-eula> [--root-dir path-to-a-scratch-dir] [--target-toolchain toolchain name] [--skip-fvp-setup] [--skip-toolchain-setup] [--skip-vela-setup]"
echo "Supplied args: $*"
}

Expand Down Expand Up @@ -101,6 +91,19 @@ function check_options() {
skip_toolchain_setup=1
shift
;;
--target-toolchain)
# Only change default root dir if the script is being executed and not sourced.
if [[ $is_script_sourced -eq 0 ]]; then
target_toolchain=${2:-"${target_toolchain}"}
fi

if [[ $# -ge 2 ]]; then
shift 2
else
print_usage "$@"
exit 1
fi
;;
--skip-fvp-setup)
skip_fvp_setup=1
shift
Expand Down Expand Up @@ -197,16 +200,59 @@ function setup_fvp() {
done
}

function select_toolchain() {
if [[ "${ARCH}" == "x86_64" ]]; then
if [[ "${OS}" == "Linux" ]]; then
if [[ "${target_toolchain}" == "zephyr" ]]; then
# TODO can include support for zephyr toolchain for other host platforms later
toolchain_url="https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.17.2/toolchain_linux-x86_64_arm-zephyr-eabi.tar.xz"
toolchain_dir="arm-zephyr-eabi"
toolchain_md5_checksum="93128be0235cf5cf5f1ee561aa6eac5f"
else
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi"
toolchain_md5_checksum="0601a9588bc5b9c99ad2b56133b7f118"
fi
else
echo "[main] Error: only Linux is currently supported for x86-64 architecture now!"; exit 1;
fi
elif [[ "${ARCH}" == "aarch64" ]] || [[ "${ARCH}" == "arm64" ]]; then
if [[ "${OS}" == "Darwin" ]]; then
if [[ "${target_toolchain}" == "zephyr" ]]; then
echo "[main] Error: only Linux OS is currently supported for aarch64 architecture targeting Zephyr now!"; exit 1;
else
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi"
toolchain_md5_checksum="f1c18320bb3121fa89dca11399273f4e"
fi
elif [[ "${OS}" == "Linux" ]]; then
if [[ "${target_toolchain}" == "zephyr" ]]; then
# eventually, this can be support by downloading the the toolchain from
# "https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v0.17.2/toolchain_linux-aarch64_arm-zephyr-eabi.tar.xz"
# but for now, we error if user tries to specify this
echo "[main] Error: currently target_toolchain zephyr is only support for x86-64 Linux host systems!"; exit 1;
else
toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi.tar.xz"
toolchain_dir="arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi"
toolchain_md5_checksum="303102d97b877ebbeb36b3158994b218"
fi
fi
else
echo "[main] Error: only x86-64 & aarch64/arm64 architecture is supported for now!"; exit 1;
fi
echo "[main] Info selected ${toolchain_dir} for ${ARCH} - ${OS} platform"
}
function setup_toolchain() {
# Download and install the arm-none-eabi toolchain
# Download and install the arm toolchain (default is arm-none-eabi)
# setting --target-toolchain to zephyr sets this to arm-zephyr-eabi
cd "${root_dir}"
if [[ ! -e "${toolchain_dir}.tar.xz" ]]; then
echo "[${FUNCNAME[0]}] Downloading toolchain ..."
curl --output "${toolchain_dir}.tar.xz" "${toolchain_url}"
echo "[${FUNCNAME[0]}] Downloading ${toolchain_dir} toolchain ..."
curl --output "${toolchain_dir}.tar.xz" -L "${toolchain_url}"
verify_md5 ${toolchain_md5_checksum} "${toolchain_dir}.tar.xz" || exit 1
fi

echo "[${FUNCNAME[0]}] Installing toolchain ..."
echo "[${FUNCNAME[0]}] Installing ${toolchain_dir} toolchain ..."
rm -rf "${toolchain_dir}"
tar xf "${toolchain_dir}.tar.xz"
}
Expand Down Expand Up @@ -272,12 +318,16 @@ if [[ $is_script_sourced -eq 0 ]]; then
cd "${root_dir}"
echo "[main] Using root dir ${root_dir} and options:"
echo "skip-fvp-setup=${skip_fvp_setup}"
echo "target-toolchain=${target_toolchain}"
echo "skip-toolchain-setup=${skip_toolchain_setup}"
echo "skip-vela-setup=${skip_vela_setup}"

# Import utils
source $et_dir/backends/arm/scripts/utils.sh

# Select appropriate toolchain
select_toolchain

# Setup toolchain
if [[ "${skip_toolchain_setup}" -eq 0 ]]; then
setup_toolchain
Expand Down
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