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83 lines
3.2 KiB
Bash
Executable File
83 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Based on code and ideas from @jumkey
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[ -z "${WORK_PATH}" -o ! -d "${WORK_PATH}/include" ] && WORK_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
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. ${WORK_PATH}/include/functions.sh
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MODEL="$(readConfigKey "model" "${USER_CONFIG_FILE}")"
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PRODUCTVER="$(readConfigKey "productver" "${USER_CONFIG_FILE}")"
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KVER="$(readModelKey "${MODEL}" "productvers.[${PRODUCTVER}].kver")"
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# Adapted from: scripts/Makefile.lib
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# Usage: size_append FILE [FILE2] [FILEn]...
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# Output: LE HEX with size of file in bytes (to STDOUT)
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file_size_le() {
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printf $(
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dec_size=0
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for F in "${@}"; do
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fsize=$(stat -c "%s" ${F})
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dec_size=$(expr ${dec_size} + ${fsize})
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done
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printf "%08x\n" ${dec_size} |
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sed 's/\(..\)/\1 /g' | {
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read ch0 ch1 ch2 ch3
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for ch in ${ch3} ${ch2} ${ch1} ${ch0}; do
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printf '%s%03o' '\' $((0x${ch}))
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done
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}
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)
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}
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size_le() {
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printf $(
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printf "%08x\n" "${@}" |
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sed 's/\(..\)/\1 /g' | {
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read ch0 ch1 ch2 ch3
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for ch in ${ch3} ${ch2} ${ch1} ${ch0}; do
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printf '%s%03o' '\' $((0x${ch}))
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done
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}
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)
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}
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SCRIPT_DIR=$(dirname $0)
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VMLINUX_MOD=${1}
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ZIMAGE_MOD=${2}
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KVER_MAJOR=${KVER:0:1}
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if [ ${KVER_MAJOR} -eq 4 ] || [ ${KVER_MAJOR} -eq 3 ]; then
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# Kernel version 4.x or 3.x (bromolow)
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#zImage_head 16494
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#payload(
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# vmlinux.bin x
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# padding 0xf00000-x
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# vmlinux.bin size 4
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#) 0xf00004
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#zImage_tail(
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# unknown 72
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# run_size 4
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# unknown 30
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# vmlinux.bin size 4
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# unknown 114460
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#) 114570
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#crc32 4
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gzip -dc "${SCRIPT_DIR}/bzImage-template-v4.gz" >"${ZIMAGE_MOD}"
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dd if="${VMLINUX_MOD}" of="${ZIMAGE_MOD}" bs=16494 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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file_size_le "${VMLINUX_MOD}" | dd of="${ZIMAGE_MOD}" bs=15745134 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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file_size_le "${VMLINUX_MOD}" | dd of="${ZIMAGE_MOD}" bs=15745244 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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RUN_SIZE=$(objdump -h ${VMLINUX_MOD} | sh "${SCRIPT_DIR}/calc_run_size.sh")
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size_le ${RUN_SIZE} | dd of=${ZIMAGE_MOD} bs=15745210 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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size_le $(($((16#$(crc32 "${ZIMAGE_MOD}" | awk '{print$1}'))) ^ 0xFFFFFFFF)) | dd of="${ZIMAGE_MOD}" conv=notrunc oflag=append >"${LOG_FILE}" 2>&1 || dieLog
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else
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# Kernel version 5.x
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gzip -dc "${SCRIPT_DIR}/bzImage-template-v5.gz" >"${ZIMAGE_MOD}"
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dd if="${VMLINUX_MOD}" of="${ZIMAGE_MOD}" bs=14561 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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file_size_le "${VMLINUX_MOD}" | dd of="${ZIMAGE_MOD}" bs=34463421 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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file_size_le "${VMLINUX_MOD}" | dd of="${ZIMAGE_MOD}" bs=34479132 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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# RUN_SIZE=`objdump -h ${VMLINUX_MOD} | sh "${SCRIPT_DIR}/calc_run_size.sh"`
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# size_le ${RUN_SIZE} | dd of=${ZIMAGE_MOD} bs=34626904 seek=1 conv=notrunc >"${LOG_FILE}" 2>&1 || dieLog
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size_le $(($((16#$(crc32 "${ZIMAGE_MOD}" | awk '{print$1}'))) ^ 0xFFFFFFFF)) | dd of="${ZIMAGE_MOD}" conv=notrunc oflag=append >"${LOG_FILE}" 2>&1 || dieLog
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fi
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