#!/bin/bash
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# align_to_flash_block_size.sh
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# param1: path-to-file
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# param2: flash block size
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input=$1
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out=$2
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block_size=$3
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function gen_file() {
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filename=$1
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output_file=$2
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# get file align size
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filesize=`stat -c "%s" $filename`
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filesize=`echo "scale=0; (($filesize + 1023) / 1024 + $block_size - 1) / $block_size * $block_size" | bc`
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# gen file
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`dd if=/dev/zero of=$output_file bs=1K count=$filesize > /dev/null 2>&1`
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`dd if=$filename of=$output_file bs=1K count=$filesize conv=notrunc > /dev/null 2>&1`
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echo $filename": aligned_to_flash_block_size "$block_size"KB: success!"
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}
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if [[ $block_size != 128 && $block_size != 256 ]]; then
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echo "$block_size not support!"
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echo "support:"
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echo " 128(KB)"
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echo " 256(KB)"
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exit
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fi
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if [ ! -f "$input" ]; then
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echo "$input not exist!"
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exit
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fi
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if [ -f "$out" ]; then
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rm $out
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exit
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fi
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gen_file $input $out
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