diff options
| -rwxr-xr-x | scripts/gen_image_generic.sh | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/scripts/gen_image_generic.sh b/scripts/gen_image_generic.sh index 5e37224736..ef13624402 100755 --- a/scripts/gen_image_generic.sh +++ b/scripts/gen_image_generic.sh @@ -26,14 +26,31 @@ KERNELSIZE="$2" ROOTFSOFFSET="$(($3 / 512))" ROOTFSSIZE="$(($4 / 512))" +# Using mcopy -s ... is using READDIR(3) to iterate through the directory +# entries, hence they end up in the FAT filesystem in traversal order which +# breaks reproducibility. +# Implement recursive copy with reproducible order. +dos_dircopy() { + local entry + local baseentry + for entry in "$1"/* ; do + if [ -f "$entry" ]; then + mcopy -i "$OUTPUT.kernel" "$entry" ::"$2" + elif [ -d "$entry" ]; then + baseentry="$(basename "$entry")" + mmd -i "$OUTPUT.kernel" ::"$2""$baseentry" + dos_dircopy "$entry" "$2""$baseentry"/ + fi + done +} + [ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE" dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc if [ -n "$GUID" ]; then [ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$((ROOTFSOFFSET + ROOTFSSIZE))" conv=notrunc count="$sect" mkfs.fat --invariant -n kernel -C "$OUTPUT.kernel" -S 512 "$((KERNELSIZE / 1024))" - [ "$SOURCE_DATE_EPOCH" ] && find "$KERNELDIR"/ -mindepth 1 -execdir touch -hcd "@${SOURCE_DATE_EPOCH}" "{}" + - LC_ALL=C mcopy -m -s -i "$OUTPUT.kernel" "$KERNELDIR"/* ::/ + LC_ALL=C dos_dircopy "$KERNELDIR" / else make_ext4fs -J -L kernel -l "$KERNELSIZE" ${SOURCE_DATE_EPOCH:+-T ${SOURCE_DATE_EPOCH}} "$OUTPUT.kernel" "$KERNELDIR" fi |