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#!/usr/bin/env bash
function usage()
{
echo "Usage:"
echo " $0 [options]"
echo "Options:"
echo " -h Display help or usage"
echo " -i <input_file_path> Input binary file path"
echo " -a <c_align> Output C array alignment"
echo " -p <c_prefix> Output C array name prefix"
echo " -t <num_zero_bytes> Output padding zero bytes"
exit 1;
}
# Command line options
INPUT_PATH=""
OUTPUT_C_ALIGN=""
OUTPUT_C_PREFIX=""
NUM_ZERO_BYTES=0
while getopts "hi:a:p:t:" o; do
case "${o}" in
h)
usage
;;
i)
INPUT_PATH=${OPTARG}
;;
a)
OUTPUT_C_ALIGN=${OPTARG}
;;
p)
OUTPUT_C_PREFIX=${OPTARG}
;;
t)
NUM_ZERO_BYTES=${OPTARG}
;;
*)
usage
;;
esac
done
shift $((OPTIND-1))
if [ -z "${INPUT_PATH}" ]; then
echo "Must specify input file path"
usage
fi
if [ ! -f "${INPUT_PATH}" ]; then
echo "The input path should be a file"
usage
fi
if [ -z "${OUTPUT_C_ALIGN}" ]; then
echo "Must provide output C array alignment"
usage
fi
if [ -z "${OUTPUT_C_PREFIX}" ]; then
echo "Must provide output C array name prefix"
usage
fi
printf "const char __attribute__((aligned(%s))) %s_start[] = {\n" "${OUTPUT_C_ALIGN}" "${OUTPUT_C_PREFIX}"
od -v -t x1 -An ${INPUT_PATH} | awk '{for (i=1; i<=NF; i++) printf " 0x%s,", $i; printf "\n"; }'
echo __dummy__ | awk "{for (i=1; i<=${NUM_ZERO_BYTES}; i++) { printf \" 0x00,\"; if (i % 16 == 0) printf \"\n\"; } }"
printf "};\n"
printf "const unsigned long %s_size = sizeof(%s_start);\n" "${OUTPUT_C_PREFIX}" "${OUTPUT_C_PREFIX}"
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