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\begin{frame}[fragile]
\frametitle{get an existing layer}
retrive the layer from your BSP/SoC vendor
\begin{verbatim}
poky % git clone git://git.yoctoproject.org/meta-ti
poky % cd meta-ti
poky/meta-ti % git branch -r
poky/meta-ti % git checkout -t origin/krogoth -b krogoth
poky/meta-ti % cd ..
poky % git checkout -t origin/krogoth -b krogoth
\end{verbatim}
\end{frame}
\begin{frame}[fragile]
\frametitle{layer dependencies}
have a look at it's dependencies
\begin{verbatim}
poky % cat meta-ti/conf/layer.conf | grep LAYERDEPENDS
\end{verbatim}
no dependencies, so we are safe to continue, otherwise
retrive more layers.
\end{frame}
\begin{frame}[fragile]
\frametitle{generate a new build environment}
\begin{verbatim}
poky % . oe-init-build-env build-ti
poky/build-ti %
\end{verbatim}
\end{frame}
\subsection{configure build environment}
\begin{frame}
\frametitle{overview}
builds are configured using two configuration files
\begin{itemize}
\item /home/devel/poky/build-ti/conf/bblayers.conf
\item /home/devel/poky/build-ti/conf/local.conf
\end{itemize}
\end{frame}
\begin{frame}[fragile]
\frametitle{bblayers.conf}
additional layers are added with absolute! path to the BBLAYERS variable
\begin{verbatim}
BBLAYERS ?= " \
/home/devel/poky/meta \
/home/devel/poky/meta-yocto \
/home/devel/poky/meta-yocto-bsp \
"
\end{verbatim}
\begin{verbatim}
% bitbake-layers show-layers
layer path priority
=====================================================================
meta /home/devel/poky/meta 5
meta-yocto /home/devel/poky/meta-yocto 5
meta-yocto-bsp /home/devel/poky/meta-yocto-bsp 5
\end{verbatim}
\end{frame}
\begin{frame}[fragile]
\frametitle{add ti and meta-foo layers}
modify the BBLAYERS variable in bblayers.conf
\begin{verbatim}
BBLAYERS ?= " \
/home/devel/poky/meta \
/home/devel/poky/meta-yocto \
/home/devel/poky/meta-yocto-bsp \
/home/devel/poky/meta-ti \
"
\end{verbatim}
\begin{verbatim}
% bitbake-layers show-layers
layer path priority
=====================================================================
meta /home/devel/poky/meta 5
meta-yocto /home/devel/poky/meta-yocto 5
meta-yocto-bsp /home/devel/poky/meta-yocto-bsp 5
meta-ti /home/devel/poky/meta-ti 6
\end{verbatim}
\end{frame}
\begin{frame}[fragile]
\frametitle{overlayed recipes}
to see which recipes replace official ones:
\begin{verbatim}
poky/build-ti % bitbake-layers show-overlayed
Parsing recipes..done.
=== Overlayed recipes ===
directfb:
meta-ti 1.6.3
meta 1.7.1
directfb-examples:
meta-ti 1.6.0
meta 1.7.0
xserver-xorg:
meta-ti 2:1.14.4
meta 2:1.15.0
\end{verbatim}
\end{frame}
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