Recipe
.bb or
.bbappend file
- Recipes describe how to handle a given package
- A recipe is a set of instructions to describe how to retrieve, patch, compile, install and generate binary packages for a given application.
- It also defines what build or runtime dependencies are required.
- The recipes are parsed by the BitBake build engine.
- The format of a recipe file name is <package-name>_<version>.bb
- Recipes describe how to handle a given package
- A recipe is a set of instructions to describe how to retrieve, patch, compile, install and generate binary packages for a given application.
- It also defines what build or runtime dependencies are required.
- The recipes are parsed by the BitBake build engine.
- The format of a recipe file name is <package-name>_<version>.bb
Some runtime variables
WORKDIR : The package location that was
created after bitbake built the package.
$ bitbake
-e vehicle | grep ^WORKDIR=
WORKDIR="/home/yocto/poky/build/tmp/work/arm-linux-gnueabi/vehicle/0.1-r0"
PN : package name(Extract from recipe file
name)
PR : package revision
PV : package version
S : The location where bitbake unpacks the
package.(where the source is located)
$ bitbake
-e hello | grep ^S=
S="/home/yocto/poky/build/tmp/work/arm-linux-gnueabi/vehicle/0.1-r0"
D : Directory to import output files
(destination directory)
$ bitbake
-e hello | grep ^D=
D="/home/yocto/poky/build/tmp/work/arm-linux-gnueabi/vehicle/0.1-r0/image"
A command to be used after "D" path.
Bindir : /usr/bin
sbindir : /usr/sbin
libdir : /usr/lib
libexecdir : /usr/lib
sysconfdir : /etc
datadir : /usr/share
mandir : /usr/share/man
includedir : /usr/include
#Recipe
#Runtime Variables #Yocto #Bitbake #Linux #Build system
