My Zephyr RC file

zephyrrc.sh

# The contents of this file should go into ~/.zephyrrc
# It is sourced with
# source zephyr-env.sh

# Download the Zephyr SDK from
# https://github.com/zephyrproject-rtos/sdk-ng/releases

ZEPHYR_SDK_VERSION=0.16.5-1
PREFIX=/opt/zephyr
VENV=$PREFIX/.venv

# return arch in the format used by zephyr sdk archives
filter_arch() {
    local a=`uname -m`

    case $a in
    arm64)
        echo "aarch64"
        ;;
    *)
        echo $a
        ;;
    esac
}

# return os in the format used by zephyr sdk archives
filter_os() {
    local os=`uname -s`

    case $os in
    Darwin)
        echo "macos"
        ;;
    Linux)
        echo "linux"
        ;;
    *)
        echo $a
        ;;
    esac
}

ARCH=`filter_arch`
OS=`filter_os`

#export ZEPHYR_TOOLCHAIN_VARIANT=llvm

export ZEPHYR_TOOLCHAIN_VARIANT=zephyr
export ZEPHYR_SDK_INSTALL_DIR=${PREFIX}/zephyr-sdk-${ZEPHYR_SDK_VERSION}

if [ "$ZEPHYR_TOOLCHAIN_VARIANT" = "zephyr" ]; then

if [ "$OS" = "linux" ]; then
if [ "$ARCH" = "x86_64" -o "$ARCH" = "aarch64" ]; then
# path for dtc, qemu-system*, openocd, net-tools, etc
PATH=${ZEPHYR_SDK_INSTALL_DIR}/sysroots/${ARCH}-pokysdk-${OS}/usr/bin:${PATH}
fi
fi

# path for all supported Zephyr toolchains
toolchains=(
  "aarch64-zephyr-elf"
  "arc64-zephyr-elf"
  "arc-zephyr-elf"
  "arm-zephyr-eabi"
  "mips-zephyr-elf"
  "nios2-zephyr-elf"
  "riscv64-zephyr-elf"
  "sparc-zephyr-elf"
  "x86_64-zephyr-elf"
  "xtensa-espressif_esp32_zephyr-elf"
  "xtensa-espressif_esp32s2_zephyr-elf"
  "xtensa-intel_apl_adsp_zephyr-elf"
  "xtensa-intel_bdw_adsp_zephyr-elf"
  "xtensa-intel_byt_adsp_zephyr-elf"
  "xtensa-intel_s1000_zephyr-elf"
  "xtensa-nxp_imx_adsp_zephyr-elf"
  "xtensa-nxp_imx8m_adsp_zephyr-elf"
  "xtensa-sample_controller_zephyr-elf"
  )

for i in ${toolchains[@]}; do
  PATH=${ZEPHYR_SDK_INSTALL_DIR}/${i}/bin:${PATH}
done

export PATH
fi

# activate python virtual environment installed in the GSG
# See https://docs.zephyrproject.org/latest/develop/getting_started/index.html
. $VENV/bin/activate