Why mkyaffs2 and Unyaff2 removes the extended attributes of a file.

[GoogleCodeExporter]

What steps will reproduce the problem?

a.manjunatha@a-manjunatha~$# cd ~/myrootfs
a.manjunatha@a-manjunatha~$# ls 
bin  boot  csa  dev  etc  home  lib  lost+found  manju  media  mnt  opt  proc  
root  run  sbin  sdcard  smack  srv  sys  tmp  usr  var
a.manjunatha@a-manjunatha~$# cd ..
bash# sudo attr -s "Key001" -V "9999" ./myrootfs/usr/bin/file 
Attribute "Key001" set to a 4 byte value for ./myrootfs/usr/bin/file:
9999
a.manjunatha@a-manjunatha~$# getfattr -d ./myrootfs/usr/bin/file 
# file: myrootfs/usr/bin/file
user.Key001="9999"

a.manjunatha@a-manjunatha:~$# sudo mkyaffs2 --yaffs-ecclayout ./myrootfs/ 
yaffsrootfs.img 
mkyaffs2 0.2.9_20120815: image building tool for YAFFS2.

stage 1: scanning directory './myrootfs/'... [done]
scanning complete, total objects: 7918.

stage 2: creating image 'yaffsrootfs.img'
[===============================================================================
================================================================================
================================================================================
========] 7918/7918 100%

operation complete,
7918 objects in 90015 NAND pages.

a.manjunatha@a-manjunatha:~/$# sudo unyaffs2 --yaffs-ecclayout 
./yaffsrootfs.img  extracted_folder
unyaffs2 0.2.9_20120815: image extracting tool for YAFFS2.

scanning image './yaffsrootfs.img'... [done]
scanning complete, total objects: 7918

building fs tree ... [done]
building complete, total objects: 7918

extracting image into 'extracted_folder'
[===============================================================================
================================================================================
================================================================================
========] 7918/7918 100%

modify files attributes... [done]

operation complete,
files were extracted into 'extracted_folder'.
a.manjunatha@a-manjunatha:~/$# getfattr -d ./extracted_folder/usr/bin/file
<Extended attribute is missing after mkyaff2 and unyaff2>

Is there is Way to Fix this issue?
http://www.yaffs.net/documents/faq
in the above link it is mentioned it supports the extended attributes.

What is the expected output? What do you see instead?
It should show extended attributes after mkyaffs2 and unyaff2

What version of the product are you using? On what operating system?
mkyaffs2 0.2.9_20120815 - A utility to make the yaffs2 image.

Please provide any additional information below.
Is there is Way to Fix this issue?
http://www.yaffs.net/documents/faq
in the above link it is mentioned it supports the extended attributes.

Original issue reported on code.google.com by Manjunat...@gmail.com on 28 Feb 2014 at 7:04