2 # Copyright (C) 2006-2012 OpenWrt.org
4 if [ $# -ne 5 ] && [ $# -ne 6 ]; then
5 echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image> [<align>]"
21 # create partition table
22 set $
(ptgen
-o "$OUTPUT" -h $head -s $sect ${GUID:+-g} -p "${KERNELSIZE}m${PARTOFFSET:+@$PARTOFFSET}" -p "${ROOTFSSIZE}m" ${ALIGN:+-l $ALIGN} ${SIGNATURE:+-S 0x$SIGNATURE} ${GUID:+-G $GUID})
24 KERNELOFFSET
="$(($1 / 512))"
26 ROOTFSOFFSET
="$(($3 / 512))"
27 ROOTFSSIZE
="$(($4 / 512))"
29 # Using mcopy -s ... is using READDIR(3) to iterate through the directory
30 # entries, hence they end up in the FAT filesystem in traversal order which
31 # breaks reproducibility.
32 # Implement recursive copy with reproducible order.
36 for entry
in "$1"/* ; do
37 if [ -f "$entry" ]; then
38 mcopy
-i "$OUTPUT.kernel" "$entry" ::"$2"
39 elif [ -d "$entry" ]; then
40 baseentry
="$(basename "$entry")"
41 mmd
-i "$OUTPUT.kernel" ::"$2""$baseentry"
42 dos_dircopy
"$entry" "$2""$baseentry"/
47 [ -n "$PADDING" ] && dd if=/dev
/zero of
="$OUTPUT" bs
=512 seek
="$ROOTFSOFFSET" conv
=notrunc count
="$ROOTFSSIZE"
48 dd if="$ROOTFSIMAGE" of
="$OUTPUT" bs
=512 seek
="$ROOTFSOFFSET" conv
=notrunc
50 if [ -n "$GUID" ]; then
51 [ -n "$PADDING" ] && dd if=/dev
/zero of
="$OUTPUT" bs
=512 seek
="$((ROOTFSOFFSET + ROOTFSSIZE))" conv
=notrunc count
="$sect"
52 mkfs.fat
--invariant -n kernel
-C "$OUTPUT.kernel" -S 512 "$((KERNELSIZE / 1024))"
53 LC_ALL
=C dos_dircopy
"$KERNELDIR" /
55 make_ext4fs
-J -L kernel
-l "$KERNELSIZE" ${SOURCE_DATE_EPOCH:+-T ${SOURCE_DATE_EPOCH}} "$OUTPUT.kernel" "$KERNELDIR"
57 dd if="$OUTPUT.kernel" of
="$OUTPUT" bs
=512 seek
="$KERNELOFFSET" conv
=notrunc
58 rm -f "$OUTPUT.kernel"