#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd.
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set -e
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usage() {
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cat >&2 << USAGE
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usage: $0 [-h] [-z] --boot_img BOOT_IMG [--out OUT] [--kernel KERNEL] [--ramdisk RAMDISK] [--second SECOND] [--dtb DTB ] [--recovery_dtbo RECOVERY_DTBO] -o OUTPUT
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optional arguments:
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-h, --help show this help message and exit
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-z pack compressed kernel image
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--boot_img BOOT_IMG path to the original boot image
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--out OUT path to out binaries (default: out)
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--kernel KERNEL path to the new kernel
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--ramdisk RAMDISK path to the new ramdisk
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--second SECOND path to the new 2nd bootloader (default: resource.img)
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--dtb DTB path to the new dtb
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--recovery_dtbo RECOVERY_DTBO
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path to the new recovery DTBO
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-o OUTPUT, --output OUTPUT
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output file name
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USAGE
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}
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# Parse command-line arguments
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while [ $# -gt 0 ]; do
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case $1 in
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--boot_img)
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boot_img=$2
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shift 2
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;;
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--out)
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out=$2
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shift 2
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;;
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--kernel)
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kernel=$2
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shift 2
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;;
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--ramdisk)
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ramdisk=$2
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shift 2
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;;
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--second)
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second=$2
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shift 2
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;;
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--dtb)
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dtb=$2
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shift 2
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;;
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--recovery_dtbo)
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recovery_dtbo=$2
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shift 2
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;;
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-h)
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usage
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exit 0
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;;
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--help)
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usage
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exit 0
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;;
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-z)
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compressed_kernel=y
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shift
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;;
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-o)
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output=$2
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shift 2
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;;
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--output)
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output=$2
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shift 2
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;;
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*)
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shift
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;;
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esac
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done
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if [ "$boot_img" == "" -o ! -e "$boot_img" ]; then
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echo "No boot img"
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usage
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exit 1
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fi
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if [ "$output" == "" ]; then
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echo "No output file name"
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usage
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exit 1
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fi
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srctree=${srctree-"."}
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objtree=${objtree-"."}
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out=${out-"out"}
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if [ "$($srctree/scripts/config --state CONFIG_ARM64)" == "y" ]; then
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if [ "$compressed_kernel" == "y" ]; then
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default_kernel=arch/arm64/boot/Image.lz4
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else
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default_kernel=arch/arm64/boot/Image
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fi
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else
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if [ "$compressed_kernel" == "y" ]; then
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default_kernel=arch/arm/boot/zImage
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else
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default_kernel=arch/arm/boot/Image
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fi
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fi
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kernel=${kernel-$objtree/$default_kernel}
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second=${second-$objtree/resource.img}
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ramdisk=${ramdisk-$out/ramdisk}
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dtb=${dtb-$out/dtb}
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recovery_dtbo=${recovery_dtbo-$out/recovery_dtbo}
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log="$out/unpack.log"
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mkdir -p $out
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$srctree/scripts/unpack_bootimg --boot_img $boot_img --out $out > $log
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cmdline=$(grep -a "^command line args: " $log | tr '\0' '\n'| sed "s/^command line args: //")
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extra_cmdline=$(grep -a "^additional command line args: " $log | tr '\0' '\n'| sed "s/^additional command line args: //")
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version=$(grep -a "^boot image header version: " $log | sed "s/^boot image header version: //")
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os_version=$(grep -a "^os version: " $log | sed "s/^os version: //")
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os_patch_level=$(grep -a "^os patch level: " $log | sed "s/^os patch level: //")
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dtb_size=$(grep -a "^dtb size: " $log | sed "s/^dtb size: //")
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dtb_size=${dtb_size:-0}
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if [ $dtb_size -gt 0 -a -e "$dtb" ]; then
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DTB="--dtb $dtb"
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fi
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recovery_dtbo_size=$(grep -a "^recovery dtbo size: " $log | sed "s/^recovery dtbo size: //")
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recovery_dtbo_size=${recovery_dtbo_size:-0}
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if [ $recovery_dtbo_size -gt 0 -a -e "$recovery_dtbo" ]; then
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RECOVERY_DTBO="--recovery_dtbo $recovery_dtbo"
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fi
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if [ $version -lt 3 ]; then
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SECOND="--second $second"
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fi
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$srctree/scripts/mkbootimg \
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--kernel $kernel \
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$SECOND \
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--ramdisk $ramdisk \
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$DTB \
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$RECOVERY_DTBO \
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--cmdline "${cmdline}${extra_cmdline}" \
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--header_version $version \
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--os_version $os_version \
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--os_patch_level $os_patch_level \
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--output $output
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