[PATCH v3 0/2] wic: extend empty plugin with options to write zeros to partiton

[Lukas Funke <lukas.funke-oss@weidmueller.com>]

From: Lukas Funke <lukas.funke@weidmueller.com>

Adds features to explicitly write zeros to the start of the
partition. This is useful to overwrite old content like
filesystem signatures which may be re-recognized otherwise.

The new features can be enabled with
'--soucreparams="[fill|size=<N>[S|s|K|k|M|G]][,][bs=<N>[S|s|K|k|M|G]]"'
Conflicting or missing options throw errors.

The features are:
- fill
  Fill the entire partition with zeros. Requires '--fixed-size' option
  to be set.
- size=<N>[S|s|K|k|M|G]
  Set the first N bytes of the partition to zero. Default unit is 'K'.
- bs=<N>[S|s|K|k|M|G]
  Write at most N bytes at a time during source file creation.
  Defaults to '1M'. Default unit is 'K'.

Changes in v3:
 - Add testcase 
 - Fix interpretation of --fixed-size parameter

Changed in v2:
 - Added SoB

---

Lukas Funke (1):
  selftest: wic: add test for zerorize option of empty plugin

Malte Schmidt (1):
  wic: extend empty plugin with options to write zeros to partiton

 meta/lib/oeqa/selftest/cases/wic.py     | 36 ++++++++++++++++
 scripts/lib/wic/plugins/source/empty.py | 57 ++++++++++++++++++++++++-
 2 files changed, 92 insertions(+), 1 deletion(-)

-- 
2.30.2