Convert binary files to elf symbols

bin2elf

#!/bin/sh

usage() {
	echo "usage: $0 <infile> <outelf> [symname]"
	echo "Converts binary or text file <outelf> into elf object <outelf> with constant named"
	echo "symname defaults to infile if none is specified, with disallowed characters replaced with _"
	echo "symname        an array containing the <infile>"
	echo "symname_length length of array <symname>"
	echo "symname_end    points to the null byte appended after <symname>"
}


[[ -z "$1" ]] || [[ -z "$2" ]] && usage
relname="$3"
infile="$(echo -n "$1" | sed 's/\"/\\\"/g')"
[[ -z "$relname" ]] && relname="$(basename "$1" | sed 's/[\.,\!\@\#\$\%\^\&\*()-\+\=\`\~\"''\;\:\/\?\>\<\s\t]/_/g ; s/\r?\n$//')"
as - -o "$2" <<EOF
        .global ${relname}_size
        .global ${relname}
        .global ${relname}_end
        .section .rodata
${relname}_size:
    .long ${relname}_end - ${relname}
${relname}:
        .incbin "$infile"
${relname}_end:
        .byte 0
EOF