build.sh

#!/bin/bash

#
# Default variables
#
MODEL=5
DEBUG=0
TFA_FLAGS=""
EDK2_FLAGS=""

print_usage() {
    echo
    echo "Build TF-A + EDK2 image for Raspberry Pi."
    echo
    echo "Usage: build.sh [options]"
    echo
    echo "Options: "
    echo "  --model MODEL               Board family. Supported: 4, 5. Default: ${MODEL}."
    echo "  --debug DEBUG               Build a debug version. Default: ${DEBUG}."
    echo "  --tfa-flags \"FLAGS\"         Flags appended to TF-A build process."
    echo "  --edk2-flags \"FLAGS\"        Flags appended to EDK2 build process."
    echo "  --help                      Show this help."
    echo
    exit "${1}"
}

#
# Get options
#
OPTS=$(getopt -o '' -l 'model:,debug:,tfa-flags:,edk2-flags:,help' -- "${@}") || print_usage $?
eval set -- "${OPTS}"
while true; do
    case "${1}" in
        --model) MODEL="${2}"; shift 2 ;;
        --debug) DEBUG="${2}"; shift 2 ;;
        --tfa-flags) TFA_FLAGS="${2}"; shift 2 ;;
        --edk2-flags) EDK2_FLAGS="${2}"; shift 2 ;;
        --help) print_usage 0; shift ;;
        --) shift; break ;;
        *) break;;
    esac
done
if [[ -n "${@}" ]]; then
    echo "Invalid additional arguments '${@}'"
    print_usage 1
fi

#
# Get machine architecture
#
MACHINE_TYPE=$(uname -m)

# Fix-up possible differences in reported arch
if [ ${MACHINE_TYPE} == 'arm64' ]; then
    MACHINE_TYPE='aarch64'
elif [ ${MACHINE_TYPE} == 'amd64' ]; then
    MACHINE_TYPE='x86_64'
fi

if [ ${MACHINE_TYPE} != 'aarch64' ]; then
    export CROSS_COMPILE="${CROSS_COMPILE:-aarch64-linux-gnu-}"
fi

#
# Build TF-A
#
pushd arm-trusted-firmware || exit

make \
    PLAT=rpi${MODEL} \
    PRELOADED_BL33_BASE=0x20000 \
    RPI3_PRELOADED_DTB_BASE=0x1F0000 \
    SUPPORT_VFP=1 \
    SMC_PCI_SUPPORT=1 \
    DEBUG=${DEBUG} \
    all \
    ${TFA_FLAGS} \
    || exit

popd || exit

#
# Build EDK2 final image
#
GIT_COMMIT="$(git describe --tags --always)" || GIT_COMMIT="unknown"

if [ ${DEBUG} == 1 ]; then
    RELEASE_TYPE="DEBUG"
else
    RELEASE_TYPE="RELEASE"
fi

ATF_BUILD_DIR="${PWD}/arm-trusted-firmware/build/rpi${MODEL}/${RELEASE_TYPE,,}"

export GCC_AARCH64_PREFIX="${CROSS_COMPILE}"
export WORKSPACE=${PWD}
export PACKAGES_PATH=${WORKSPACE}/edk2:${WORKSPACE}/edk2-platforms:${WORKSPACE}/edk2-non-osi

make -C ${WORKSPACE}/edk2/BaseTools || exit

source ${WORKSPACE}/edk2/edksetup.sh || exit

build \
    -a AARCH64 \
    -t GCC \
    -b ${RELEASE_TYPE} \
    -p edk2-platforms/Platform/RaspberryPi/RPi${MODEL}/RPi${MODEL}.dsc \
    -D TFA_BUILD_ARTIFACTS=${ATF_BUILD_DIR} \
    --pcd gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString=L"${GIT_COMMIT}" \
    ${EDK2_FLAGS} \
    || exit

cp ${WORKSPACE}/Build/RPi${MODEL}/${RELEASE_TYPE}_GCC/FV/RPI_EFI.fd ${PWD}