59 lines
1.5 KiB
Bash
59 lines
1.5 KiB
Bash
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#!/bin/bash
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# 检查是否传入了目录路径作为参数
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if [ $# -ne 1 ]; then
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echo "Usage: $0 <path_to_directory>"
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exit 1
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fi
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# 获取传入的目录路径
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dir="$1"
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# 检查目录是否存在
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if [ ! -d "$dir" ]; then
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echo "Error: Directory not found at $dir"
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exit 1
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fi
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# 查找 u-boot.bin 和 rtthread.bin.lz4 文件
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u_boot_file="$dir/u-boot.bin"
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rtthread_file="$dir/rtthread.bin.lz4"
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# 检查 u-boot.bin 是否存在
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if [ ! -f "$u_boot_file" ]; then
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echo "Error: u-boot.bin not found in $dir"
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exit 1
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fi
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# 检查 rtthread.bin.lz4 是否存在
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if [ ! -f "$rtthread_file" ]; then
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echo "Error: rtthread.bin.lz4 not found in $dir"
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exit 1
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fi
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# 计算 rtthread.bin.lz4 的文件大小，并将其对齐为 4KB
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kernelfilesize=$(stat -c%s "$rtthread_file")
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aligned_size=$(( ((kernelfilesize + 4095) / 4096) * 4096 ))
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kernelhex_size=$(printf "0x%x" "$aligned_size")
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# 输出计算的 kernelhex_size
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echo "Calculated kernel hex size: $kernelhex_size"
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# 查找关键字并替换
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key="bootcmd=sf probe 0;nand read 0x41000000 0x1200000 0x800000"
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new_value="bootcmd=sf probe 0;nand read 0x41000000 0x1200000 $kernelhex_size"
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# 检查是否安装了 Perl
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if ! command -v perl &> /dev/null; then
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echo "Error: Perl is not installed. Please install Perl to proceed."
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exit 1
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fi
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# 使用 Perl 替换二进制文件中的关键字
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if ! perl -pi -e "s/\Q$key\E/$new_value/g" "$u_boot_file"; then
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echo "Error: Perl substitution failed. Please check bootcmd in uboot env."
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exit 1
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fi
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echo "Replaced size: 0x800000 with $kernelhex_size"
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