compile_riscv_second_boot

#!/bin/sh

# Usage function
function usage() {
  cat >&2 <<EOF
${SH_FILE} is used to compile StarFive secondBoot firmware

Usage: ${SH_FILE} [-c] [-h]

Where:
  -c    copy firmware file
  -h    this help page
EOF
  exit 0
}

# Error function
function error() {
  echo -e "$@" >&2
  exit 1
}

# Copy/Check function
function copy() {
  typeset -r FILE=$1
  typeset -r DEST=$2

  cp ${FILE} ${DEST} >/dev/null 2>&1 \
    || error "Error while copying file ${FILE} to ${DEST}!"
}

# Variable(s)
typeset -r ARCH=riscv64
typeset -r SH_FILE=${0##*/}
typeset -r TMPFS=/dev/shm/second-boot-tmp
typeset -r FW_FILE="${TMPFS}/build/bootloader-JH7100-$(date +%y%m%d).bin.out"
typeset -x SRC_DIR=~/git/github/starfive/JH7100_secondBoot
typeset COPY

# Get options
while getopts "ch" ARG; do
  case ${ARG} in
    c) COPY=1
       ;;
    h|*) usage
       ;;
  esac
done
shift $((OPTIND-1))

# Define some vars according to the arch
typeset -x CROSS_COMPILE=${ARCH}-unknown-elf-
typeset -x PATH=~/cross-compile/riscv64/riscv64-unknown-elf-toolchain-10.2.0-2020.12.8-x86_64-linux-ubuntu14/bin:${PATH}

# Remove old TMPFS and re-create it
echo "- Cleaning/Creating ${TMPFS} directory..."
rm -rf ${TMPFS} \
  || error "Cannot clean temporary directory ${TMPFS}!"
mkdir -p ${TMPFS} \
  || error "Cannot create temporary directory ${TMPFS}!"

# Copy source in the tmpfs directory
rsync -aq ${SRC_DIR}/ ${TMPFS} \
  || error "Cannot copy ${SRC_DIR}/* in ${TMPFS}!"

# Cleanup build
echo "- Cleaning build directory..."
cd ${TMPFS}/build
make clean && make distclean

# Compile
echo "- Compile DDR Init..."
make || error "Failed to compile U-Boot!"

# Copy firmware file locally if asked
(( COPY )) && copy ${FW_FILE} ${OLDPWD}

# We need to go back into original directory
cd ${OLDPWD}

# Clean exit
exit 0