Adrian Freihofer 6858e5f0c8 oeqa/utils/command: simplify tap detection
Simplify the code by removing the fallback to ifconfig if the ip command
is not available. ip commands are nowadays available on all host
machines. The transition from ifconfig to ip has taken place long time
ago e.g. for the runqemu-gen-tapdevs script.

This also fixes the detection of tap devices if the tap devices are not
named tap0, tap1, etc. but have a different name, e.g. foo0, foo1 which
is the case if the OE_TAP_NAME environment variable is set.

Some examples:

$ ip tuntap show mode tap
$ sudo ./scripts/runqemu-gen-tapdevs 1000 2
Creating 2 tap devices for GID: 1000...
Creating tap0
Creating tap1
...
$ ip tuntap show mode tap
tap0: tap persist group 1000
tap1: tap persist group 1000
$ sudo ./scripts/runqemu-gen-tapdevs 1000 0
Note: Destroying pre-existing tap interface tap0...
Note: Destroying pre-existing tap interface tap1...
$ ip tuntap show mode tap
$ sudo OE_TAP_NAME=foo ./scripts/runqemu-gen-tapdevs 1000 2
Creating 2 tap devices for GID: 1000...
Creating foo0
Creating foo1
...
$ ip tuntap show mode tap
foo0: tap persist group 1000
foo1: tap persist group 1000
$ sudo OE_TAP_NAME=foo ./scripts/runqemu-gen-tapdevs 1000 0
Note: Destroying pre-existing tap interface foo0...
Note: Destroying pre-existing tap interface foo1...
$ ip tuntap show mode tap

(From OE-Core rev: 6459ea7c019bcb7a486d286dd964eeeeab99c37d)

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-07-14 17:49:48 +01:00
2024-02-19 11:34:33 +00:00
2021-07-19 18:07:21 +01:00

Poky

Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/

OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.

Contribution Guidelines

Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.

Where to Send Patches

As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:

OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):

BitBake (files in bitbake/):

Documentation (files in documentation/):

meta-yocto (files in meta-poky/, meta-yocto-bsp/):

If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.

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