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-rwxr-xr-xscripts/gen_image_generic.sh21
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