diff options
Diffstat (limited to 'distribution/yocto-advanced')
| -rw-r--r-- | distribution/yocto-advanced/pres_yocto-advanced.tex | 184 |
1 files changed, 166 insertions, 18 deletions
diff --git a/distribution/yocto-advanced/pres_yocto-advanced.tex b/distribution/yocto-advanced/pres_yocto-advanced.tex index 0b0a917..480712b 100644 --- a/distribution/yocto-advanced/pres_yocto-advanced.tex +++ b/distribution/yocto-advanced/pres_yocto-advanced.tex @@ -3,13 +3,60 @@ \title{YOCTO - Advanced} \maketitle +\begin{frame} +\frametitle{Agenda} +\begin{itemize} +\item Using BSP layers (sabrelite) +\item Build a predefined image (sabrelite) +\item Define a distribution +\item Create layers \& recipes +\item Create images +\item Yocto \& ELBE combined +\end{itemize} +\end{frame} + +\subsection{Using BSP layers} +\begin{frame}[fragile] +\frametitle{get an existing layer} +retrive the layer from your BSP/SoC vendor +\begin{verbatim} +poky % git clone -b daisy https://github.com/Freescale/meta-fsl-arm-extra +\end{verbatim} +have a look at it's dependencies +\begin{verbatim} +poky % cat meta-fsl-arm-extra/conf/layer.conf | grep LAYERDEPENDS +LAYERDEPENDS_fsl-arm-extra = "core fsl-arm" +\end{verbatim} +and retrieve them also +\begin{verbatim} +poky % git clone -b daisy git://git.yoctoproject.org/meta-fsl-arm +\end{verbatim} +check dependencies again +\begin{verbatim} +poky % cat meta-fsl-arm/conf/layer.conf | grep LAYERDEPENDS +\end{verbatim} +\dots no dependencies?! \dots OK - finished. + +\vspace{2em} +README says sth. different (openembedded-core) but we have this one already; +it is called 'meta' in poky. +\end{frame} + +\begin{frame} +\frametitle{generate a new build environment} +\begin{verbatim} +poky % . oe-init-build-env build-fsl +poky/build-fsl % +\end{verbatim} +\end{frame} + \subsection{Build configuration} \begin{frame} \frametitle{overview} builds are configured using two configuration files \begin{itemize} - \item build/conf/bblayers.conf - \item build/conf/local.conf + \item build-fsl/conf/bblayers.conf + \item build-fsl/conf/local.conf \end{itemize} \end{frame} @@ -18,20 +65,63 @@ builds are configured using two configuration files additional layers are added with absolute! path to the BBLAYERS variable \begin{verbatim} BBLAYERS ?= " \ - /home/local/src/poky/meta \ - /home/local/src/poky/meta-yocto \ - /home/local/src/poky/meta-yocto-bsp \ - /home/local/meta-mylayer \ + /home/devel/poky/meta \ + /home/devel/poky/meta-yocto \ + /home/devel/poky/meta-yocto-bsp \ + " +\end{verbatim} +\pause +\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 fsl 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-fsl-arm \ + /home/devel/poky/meta-fsl-arm-extra \ " \end{verbatim} \pause \begin{verbatim} % bitbake-layers show-layers -layer path priority -========================================================================== -meta /home/local/src/poky/meta 5 -meta-yocto /home/local/src/poky/meta-yocto 7 -meta-yocto-bsp /home/local/src/poky/meta-yocto-bsp 5 +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-fsl-arm /home/devel/poky/meta-fsl-arm 5 +meta-fsl-arm-extra /home/devel/poky/meta-fsl-arm-extra 4 +\end{verbatim} +\end{frame} + +\begin{frame}[fragile] +\frametitle{overlayed recipes} +to see which recipes replace official ones: +\begin{verbatim} +poky/build-fsl % bitbake-layers show-overlayed +Parsing recipes..done. +=== Overlayed recipes === +directfb: + meta 1.7.1 + meta-fsl-arm 1.6.3 +directfb-examples: + meta 1.7.0 + meta-fsl-arm 1.6.0 +xserver-xorg: + meta 2:1.15.0 + meta-fsl-arm 2:1.14.4 \end{verbatim} \end{frame} @@ -56,22 +146,80 @@ is used to configure \subsection{Freescale} \begin{frame} -\frametitle{using meta-fsl} -bla +\begin{frame}[fragile] +\frametitle{configure the machine} +to get a list of currently available machines configs: +\begin{verbatim} +poky/build-fsl % grep -r '@NAME' ../meta*/conf/machine +\end{verbatim} +imx6qsabrelite.conf - seems to be the one for our bord, so set +\begin{verbatim} +MACHINE ??= "imx6qsabrelite" +\end{verbatim} +in conf/local.conf +\end{frame} + +\begin{frame}[fragile] +\frametitle{package format} +as we realized with toaster, rpm packaging consumes a lot of CPU time, so lets +try ipk, by setting +\begin{verbatim} +PACKAGE_CLASSES ?= "package_ipk" +\end{verbatim} +in conf/local.conf +\end{frame} + +\begin{frame}[fragile] +\frametitle{set extra image features} +we want an image suitable for development, so set +\begin{verbatim} +EXTRA_IMAGE_FEATURES = "debug-tweaks tools-debug eclipse-debug tools-profile" +\end{verbatim} +in conf/local.conf +\end{frame} + +\begin{frame}[fragile] +\frametitle{build an predefined image} +use +\begin{verbatim} +ls ../*/*/images/ +\end{verbatim} +to get a list of predefined images; however none of them fits my needs\dots +\begin{verbatim} +poky/build-fsl % cd .. +poky % git clone -b daisy https://github.com/Freescale/meta-fsl-demos.git +poky % git clone -b daisy git://git.openembedded.org/meta-openembedded +poky % cd - +\end{verbatim} +and edit conf/bblayers.conf, to match +\begin{verbatim} +BBLAYERS ?= " \ + /home/devel/poky/meta \ + /home/devel/poky/meta-yocto \ + /home/devel/poky/meta-yocto-bsp \ + /home/devel/poky/meta-fsl-arm \ + /home/devel/poky/meta-fsl-arm-extra \ + /home/devel/poky/meta-openembedded/meta-oe \ + /home/devel/poky/meta-fsl-demos \ + " +\end{verbatim} \end{frame} -\subsection{TI} \begin{frame} -\frametitle{using meta-ti} -bla +\frametitle{build a fsl demo image} +\begin{verbatim} +poky/build-fsl % source toaster start +poky/build-fsl % bitbake qt-in-use-image +Currently 4 running tasks (26 of 4459): +\end{verbatim} +\dots coffee break! \end{frame} \begin{frame} \frametitle{define a distribution} bla -\end{frame} - DISTRO\_FEATURES +\end{frame} \begin{frame} \frametitle{creating a layer} |