23d149856d
Some versions of the screen utility provided from the host OS vendor write the socket directory to $HOME/.screen. When using a shared home directory across many servers, one sets the SCREENDIR environment variable to avoid collisions in the shared home directory. This results in problems launching a devshell where it is not entirely obvious what happened because the SCREENDIR environment variable got stripped from the environment prior to setting up the screen in detached mode. Example: % bitbake -c devshell busybox # ...Please connect in another terminal with "screen -r devshell" % screen -r devshell There is no screen to be resumed matching devshell. The temporary work around was to do something like: sh -c "unset SCREENDIR; screen -r devshell" This patch adds SCREENDIR to the white list to ensure screen works properly on systems where a developer needs to use the SCREENDIR with shared home directories. (From OE-Core rev: 5568a8f5a1c65bae021b2e36d735d3153acc6d72) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with 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 layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/community/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/