[PATCH 0/5] Make ext4 images reproducible

[venkata.pyla@toshiba-tsip.com]

From: venkata pyla <venkata.pyla@toshiba-tsip.com>

Hi,

The following series of patches will help to fix reproducible build
issues in ext4 file systems.

Verified with following steps:

```

$ git clone http://github.com/ilbers/isar.git
$ cd isar
$ . isar-init-build-env ../build

configure image parameters
$ cd isar
$ cat <<EOT >> conf/local.conf
SOURCE_DATE_EPOCH = "$(git log -1 --pretty=%ct)"
IMAGE_FSTYPES = "wic"
WIC_DEPLOY_PARTITIONS = "1"
EOT

# First Build
$ cd ../build
$ sudo rm -rf tmp sstate-cache
$ bitbake mc:qemuamd64-bookworm:isar-image-base
$ mv tmp/deploy/images/qemuamd64/ ../qemuamd64-1

# Second Build
$ sudo rm -rf tmp sstate-cache
$ bitbake mc:qemuamd64-bookworm:isar-image-base
$ mv tmp/deploy/images/qemuamd64/ ../qemuamd64-2

# compare ext4 images with diffoscope
$ diffoscope qemuamd64-1/isar-image-base-debian-bookworm-qemuamd64.wic.p2 \
	qemuamd64-2/isar-image-base-debian-bookworm-qemuamd64.wic.p2

```

venkata pyla (5):
  linux-module: Use debug-prefix-map to build modules deterministically
  wic: Set file system uuid to ext4 partitions
  wic: use E2FSPROGS_FAKE_TIME and hash_seed to generate reproducible
    ext4 images
  wic: honor the SOURCE_DATE_EPOCH in case of updated fstab
  wic: make ext2/3/4 images reproducible

 .../lib/wic/canned-wks/common-isar.wks.inc    |  2 +-
 .../lib/wic/canned-wks/de0-nano-soc.wks.in    |  2 +-
 .../lib/wic/canned-wks/efi-plus-pcbios.wks    |  2 +-
 .../scripts/lib/wic/canned-wks/hikey.wks      |  2 +-
 .../lib/wic/canned-wks/multipart-efi.wks      |  4 +-
 .../lib/wic/canned-wks/nanopi-neo-efi.wks.in  |  2 +-
 .../lib/wic/canned-wks/nanopi-neo.wks.in      |  2 +-
 .../scripts/lib/wic/canned-wks/rpi-sdimg.wks  |  2 +-
 .../wic/canned-wks/sdimage-efi-sb-debian.wks  |  2 +-
 .../lib/wic/canned-wks/sdimage-efi-sd.wks     |  2 +-
 .../lib/wic/canned-wks/sdimage-efi.wks        |  2 +-
 .../lib/wic/canned-wks/sifive-fu540.wks       |  2 +-
 .../canned-wks/starfive-visionfive2.wks.in    |  2 +-
 .../lib/wic/canned-wks/stm32mp15x.wks.in      |  2 +-
 .../linux-module/files/debian/rules.tmpl      |  5 ++-
 scripts/lib/wic/partition.py                  | 37 ++++++++++++++++++-
 scripts/lib/wic/plugins/imager/direct.py      |  3 ++
 scripts/lib/wic/plugins/source/rootfs.py      |  2 +-
 18 files changed, 59 insertions(+), 18 deletions(-)

-- 
2.20.1