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sw:yocto:bitbake:vars [2022/10/05 08:31] – created niziaksw:yocto:bitbake:vars [2026/03/05 19:45] (current) – niziak
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   * **DEPENDS** Lists a recipe's build-time dependencies. These are dependencies on other recipes whose contents (e.g. headers and shared libraries) are needed by the recipe at build time.    * **DEPENDS** Lists a recipe's build-time dependencies. These are dependencies on other recipes whose contents (e.g. headers and shared libraries) are needed by the recipe at build time. 
   * **RDEPENDS** Lists runtime dependencies of a package. These dependencies are other packages that must be installed in order for the package to function correctly.    * **RDEPENDS** Lists runtime dependencies of a package. These dependencies are other packages that must be installed in order for the package to function correctly. 
-  * + 
 +  * **PN** - The recipe name 
 +  * **PR** - The recipe revision 
 +  * **PV** - The recipe version 
 + 
 +Build related: 
 +  * **S** (by default ''${WORKDIR}/${BPN}-${PV}'') - directory within build directory, where unpacked recipe source code resides. 
 +  * **B** (by default the same as **S**) - directory within build directory, where objects are generated. 
 +  * **D** - directory within build directory, where components are installed (destination directory) 
 + 
 +<code> 
 +Variable name Definition         Typical value 
 +-------------  --------------------    -------------------- 
 +prefix         /usr                    /usr 
 +base_prefix (empty)                 (empty) 
 +exec_prefix ${base_prefix}         (empty) 
 +base_bindir ${base_prefix}/bin /bin 
 +base_sbindir ${base_prefix}/sbin /sbin 
 +base_libdir ${base_prefix}/lib /lib 
 +datadir         ${prefix}/share         /usr/share 
 +sysconfdir /etc                 /etc 
 +localstatedir /var                 /var 
 +infodir         ${datadir}/info         /usr/share/info 
 +mandir          ${datadir}/man         /usr/share/man 
 +docdir          ${datadir}/doc         /usr/share/doc 
 +servicedir /srv                 /srv 
 +bindir          ${exec_prefix}/bin /usr/bin 
 +sbindir         ${exec_prefix}/sbin /usr/sbin 
 +libexecdir ${exec_prefix}/libexec /usr/libexec 
 +libdir          ${exec_prefix}/lib /usr/lib 
 +includedir ${exec_prefix}/include /usr/include 
 +palmtopdir ${libdir}/opie         /usr/lib/opie 
 +palmqtdir ${palmtopdir}         /usr/lib/opie 
 +</code> 
 + 
 + 
 +====== get current layer dir ====== 
 + 
 +For ''layer.conf'' scope there is [[https://docs.yoctoproject.org/ref-manual/variables.html#term-LAYERDIR|LAYERDIR}]] variable. But this variable is not exported outside. 
 + 
 +Trick is to define own new variable in ''layer.conf'' which is available in recipes: 
 + 
 +<code> 
 +MY_DISTRO_LAYER_BASE = '${@os.path.normpath("${LAYERDIR}")}' 
 +</code> 
 + 
 +and use in recipe or distro.conf: 
 +<code> 
 +OVERLAYFS_ETC_INIT_TEMPLATE = "${MY_DISTRO_LAYER_BASE}/files/myboard-overlayfs-preinit.sh.in" 
 +</code>