33 lines
785 B
Bash
Executable File
33 lines
785 B
Bash
Executable File
#!/bin/sh
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FLASH_SIZE=1048576
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INPUT_IMAGE="$1"
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BINARY_NAME="$2"
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# ELF name not a valid name.
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if [ ! -f "${INPUT_IMAGE}" ] ; then
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echo "No such file."
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exit -1
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fi
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# Output name not set..
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if [ -z "${BINARY_NAME}" ] ; then
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echo "Binary name not set, using default"
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BINARY_NAME="image.bin"
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fi
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# Create binary file from ELF
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sh-unknown-elf-objcopy -O binary ${INPUT_IMAGE} ${BINARY_NAME}
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if [ "$?" -lt "0" ] ; then
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exit -2
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fi
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# Calculate size and padding length
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BINARY_SIZE=`stat --format "%s" ${BINARY_NAME}`
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PAD_SIZE=$((${FLASH_SIZE} - ${BINARY_SIZE}))
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echo "Output binary size: ${BINARY_SIZE}, additional padding: ${PAD_SIZE}."
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# Pad output file using `dd`
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tr '\0' '\377' < /dev/zero | dd bs=1 count=${PAD_SIZE} of=${BINARY_NAME} conv=notrunc seek=${BINARY_SIZE} |