#!/usr/bin/env bash

[[ -z "${ARC_PATH}" || ! -d "${ARC_PATH}/include" ]] && ARC_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"

. ${ARC_PATH}/include/functions.sh

set -o pipefail # Get exit code from process piped

# Sanity check
[ -f "${ORI_ZIMAGE_FILE}" ] || (die "${ORI_ZIMAGE_FILE} not found!" | tee -a "${LOG_FILE}")

echo -e "Patching zImage"

rm -f "${MOD_ZIMAGE_FILE}"
# Extract vmlinux
${ARC_PATH}/bzImage-to-vmlinux.sh "${ORI_ZIMAGE_FILE}" "${TMP_PATH}/vmlinux" >"${LOG_FILE}" 2>&1 || dieLog
# Patch boot params and ramdisk check
${ARC_PATH}/kpatch "${TMP_PATH}/vmlinux" "${TMP_PATH}/vmlinux-mod" >"${LOG_FILE}" 2>&1 || dieLog
# rebuild zImage
${ARC_PATH}/vmlinux-to-bzImage.sh "${TMP_PATH}/vmlinux-mod" "${MOD_ZIMAGE_FILE}" >"${LOG_FILE}" 2>&1 || dieLog