Re: [OE-core] [PATCH] busybox: do not build SUID binary without an applet

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Mon Mar 30, 2026 at 11:26 PM CEST, Jörg Sommer via lists.openembedded.org wrote:
> From: Jörg Sommer <joerg.sommer@navimatix.de>
>
> If the merge of all config snippets leads to a SUID binary without any
> applets, do not build and install it to reduce the SUID binaries in the
> system.
>
> Signed-off-by: Jörg Sommer <joerg.sommer@navimatix.de>
> ---

Hi Jörg,

Thanks for your patch.

It looks like this is making tests fail, as some busybox applets are not
found in test images:

Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/qemux86-alt/build/layers/openembedded-core/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  File "/srv/pokybuild/yocto-worker/qemux86-alt/build/layers/openembedded-core/meta/lib/oeqa/core/decorator/__init__.py", line 35, in wrapped_f
    return func(*args, **kwargs)
  File "/srv/pokybuild/yocto-worker/qemux86-alt/build/layers/openembedded-core/meta/lib/oeqa/runtime/cases/ssh.py", line 36, in test_ssh
    self.fail("uname failed with \"%s\" (exit code %s)" % (output, status))
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: uname failed with "sh: uname: not found" (exit code 127)

https://autobuilder.yoctoproject.org/valkyrie/#/builders/20/builds/3462
https://autobuilder.yoctoproject.org/valkyrie/#/builders/95/builds/3451
https://autobuilder.yoctoproject.org/valkyrie/#/builders/9/builds/3475

/bin/start_getty: line 9: readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 9: readlink: not found

/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 9: readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 9: /bin/start_getty: readlink: not foundline 9:
readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 9: readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found

INIT: Id "S0" respawning too fast: disabled for 5 minutes

/bin/start_getty: line 9: readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found
/bin/start_getty: line 9: readlink: not found
/bin/start_getty: line 20: /sbin/getty: not found

https://autobuilder.yoctoproject.org/valkyrie/#/builders/11/builds/3461
https://autobuilder.yoctoproject.org/valkyrie/#/builders/11/builds/3461

Can you have a look at the issue?

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com