[Buildroot] TestFileCapabilities is broken

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, All,

On 2018-10-14 15:25 +0200, Thomas Petazzoni spake thusly:
> The TestFileCapabilities test of our test suite is failing, with:
> 
> ======================================================================
> FAIL: test_run (tests.core.test_file_capabilities.TestFileCapabilities)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/builds/buildroot.org/buildroot/support/testing/tests/core/test_file_capabilities.py", line 44, in test_run
>     self.assertIn("cap_kill", output[0])
> AssertionError: 'cap_kill' not found in '/usr/sbin/getcap'
> 
> I did a local build, and I can reproduce the issue. What we do is we
> run "getcap -v /usr/sbin/getcap" on the target, and it returns just:
> 
> # getcap -v /usr/sbin/getcap 
> /usr/sbin/getcap
> 
> And not any of the extended attributes that getcap is supposed to have.
> I had a quick look, and makedevs gets run with a correct device table
> when generating the common tarball. I don't know when extended
> attributes are lost.
> 
> Could you have a look ?

So, I also did a test build here, and it indeed fails for me too. At
first glance, our mksquashfs has support for extended attributes:

    $ ./tests/TestFileCapabilities/host/bin/mksquashfs -h
    [...]
    -no-xattrs              don't store extended attributes
    -xattrs                 store extended attributes (default)
    [...]

Further investigation postponed, for cause of a visitor... ;-]

Regards,
Yann E. MORIN.

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