diff options
Diffstat (limited to 'distribution/yocto-advanced/yocto-layers.tex')
| -rw-r--r-- | distribution/yocto-advanced/yocto-layers.tex | 50 |
1 files changed, 25 insertions, 25 deletions
diff --git a/distribution/yocto-advanced/yocto-layers.tex b/distribution/yocto-advanced/yocto-layers.tex index 2bd6286..1feab37 100644 --- a/distribution/yocto-advanced/yocto-layers.tex +++ b/distribution/yocto-advanced/yocto-layers.tex @@ -20,26 +20,26 @@ meta-mylayer \end{frame} \begin{frame}[fragile] - \frametitle{meta-*/conf/layer.conf} - each layer needs a configuration file - \begin{itemize} - \item add conf and class directories to BBPATH - \begin{verbatim}BBPATH =. "${LAYERDIR}"\end{verbatim} - \item add recipe directories to BBFILES - \begin{verbatim}BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \ -${LAYERDIR}/recipes-*/*/*.bbappend"\end{verbatim} - \item add layer name to BBFILE\_COLLECTIONS - \begin{verbatim}BBFILE_COLLECTIONS += "mylayer"\end{verbatim} - \item set root of the layer - \begin{verbatim}BBFILE_PATTERN_mylayer = "^${LAYERDIR}/"\end{verbatim} - \item set default priority of the layer - \begin{verbatim}BBFILE_PRIORITY_mylayer = "5"\end{verbatim} - \item set version of layer (only increment if dependencies with other - layers are affected) - \begin{verbatim}LAYERVERSION_mylayer = "2"\end{verbatim} - \item set dependencies to other layers - \begin{verbatim}LAYERDEPENDS_mylayer = "meta-yocto"\end{verbatim} - \end{itemize} +\frametitle{meta-*/conf/layer.conf} +each layer needs a configuration file +\begin{itemize} +\item add conf and class directories to BBPATH +\begin{verbatim}BBPATH =. "${LAYERDIR}"\end{verbatim} +\item add recipe directories to BBFILES +\begin{verbatim}BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \ + ${LAYERDIR}/recipes-*/*/*.bbappend"\end{verbatim} +\item add layer name to BBFILE\_COLLECTIONS +\begin{verbatim}BBFILE_COLLECTIONS += "mylayer"\end{verbatim} +\item set root of the layer +\begin{verbatim}BBFILE_PATTERN_mylayer = "^${LAYERDIR}/"\end{verbatim} +\item set default priority of the layer +\begin{verbatim}BBFILE_PRIORITY_mylayer = "5"\end{verbatim} +\item set version of layer (only increment if dependencies with other + layers are affected) +\begin{verbatim}LAYERVERSION_mylayer = "2"\end{verbatim} +\item set dependencies to other layers +\begin{verbatim}LAYERDEPENDS_mylayer = "meta-yocto"\end{verbatim} +\end{itemize} \end{frame} \begin{frame} @@ -50,20 +50,20 @@ is useful to debug relations between different layers, options are: \item [show-recipes] lists available recipes and the layers that provide them. \item [show-overlayed] lists overlayed recipes \item [show-appends] lists .bbappend files - and the recipe files to which they apply + and the recipe files to which they apply \item [show-cross-depends] lists dependency relationships - between recipes that cross layer boundaries + between recipes that cross layer boundaries \item [flatten] flattens the layer configuration - into a separate output directory. + into a separate output directory. \end{description} \end{frame} \begin{frame} \frametitle{definitions} \begin{itemize} - \item It is possible for a recipe with a lower version number PV in a layer +\item It is possible for a recipe with a lower version number PV in a layer that has a higher priority to take precedence. - \item Also, the layer priority does not currently affect the precedence +\item Also, the layer priority does not currently affect the precedence order of .conf or .bbclass files. Future versions of BitBake might address this. \end{itemize} \end{frame} |