Release 1.3 (danny)
This section provides migration information for moving to the Yocto Project 1.3 Release (codename “danny”) from the prior release.
Local Configuration
Differences include changes for
SSTATE_MIRRORS and bblayers.conf
.
SSTATE_MIRRORS
The shared state cache (sstate-cache), as pointed to by SSTATE_DIR, by default now has two-character subdirectories to prevent issues arising from too many files in the same directory. Also, native sstate-cache packages, which are built to run on the host system, will go into a subdirectory named using the distro ID string. If you copy the newly structured sstate-cache to a mirror location (either local or remote) and then point to it in SSTATE_MIRRORS, you need to append “PATH” to the end of the mirror URL so that the path used by BitBake before the mirror substitution is appended to the path used to access the mirror. Here is an example:
SSTATE_MIRRORS = "file://.* http://someserver.tld/share/sstate/PATH"
bblayers.conf
The meta-yocto
layer consists of two parts that correspond to the
Poky reference distribution and the reference hardware Board Support
Packages (BSPs), respectively: meta-yocto
and meta-yocto-bsp
.
When running BitBake for the first time after upgrading, your
conf/bblayers.conf
file will be updated to handle this change and
you will be asked to re-run or restart for the changes to take effect.
Recipes
Differences include changes for the following:
Python Function Whitespace
All Python functions must now use four spaces for indentation.
Previously, an inconsistent mix of spaces and tabs existed, which made
extending these functions using _append
or _prepend
complicated
given that Python treats whitespace as syntactically significant. If you
are defining or extending any Python functions (e.g.
populate_packages
, do_unpack, do_patch and so forth) in
custom recipes or classes, you need to ensure you are using consistent
four-space indentation.
proto= in SRC_URI
Any use of proto=
in SRC_URI needs to be
changed to protocol=
. In particular, this applies to the following
URIs:
svn://
bzr://
hg://
osc://
Other URIs were already using protocol=
. This change improves
consistency.
nativesdk
The suffix nativesdk
is now implemented as a prefix, which simplifies a lot
of the packaging code for nativesdk recipes. All custom
nativesdk recipes, which are relocatable packages that are
native to SDK_ARCH, and any references need to be updated to use
nativesdk-*
instead of *-nativesdk
.
Task Recipes
“Task” recipes are now known as “Package groups” and have been renamed
from task-*.bb
to packagegroup-*.bb
. Existing references to the
previous task-*
names should work in most cases as there is an
automatic upgrade path for most packages. However, you should update
references in your own recipes and configurations as they could be
removed in future releases. You should also rename any custom task-*
recipes to packagegroup-*
, and change them to inherit
packagegroup instead of task
, as well
as taking the opportunity to remove anything now handled by
packagegroup, such as providing -dev
and -dbg
packages, setting LIC_FILES_CHKSUM, and so forth. See the
packagegroup section for further details.
IMAGE_FEATURES
Image recipes that previously included apps-console-core
in
IMAGE_FEATURES should now include splash
instead to enable the boot-up splash screen. Retaining
apps-console-core
will still include the splash screen but generates a
warning. The apps-x11-core
and apps-x11-games
IMAGE_FEATURES
features have been removed.
Removed Recipes
The following recipes have been removed. For most of them, it is unlikely that you would have any references to them in your own Metadata. However, you should check your metadata against this list to be sure:
libx11-trim
: Replaced bylibx11
, which has a negligible size difference with modern Xorg.xserver-xorg-lite
: Usexserver-xorg
, which has a negligible size difference when DRI and GLX modules are not installed.xserver-kdrive
: Effectively unmaintained for many years.mesa-xlib
: No longer serves any purpose.galago
: Replaced by telepathy.gail
: Functionality was integrated into GTK+ 2.13.eggdbus
: No longer needed.gcc-*-intermediate
: The build has been restructured to avoid the need for this step.libgsmd
: Unmaintained for many years. Functionality now provided byofono
instead.contacts, dates, tasks, eds-tools: Largely unmaintained PIM application suite. It has been moved to
meta-gnome
inmeta-openembedded
.
In addition to the previously listed changes, the meta-demoapps
directory has also been removed because the recipes in it were not being
maintained and many had become obsolete or broken. Additionally, these
recipes were not parsed in the default configuration. Many of these
recipes are already provided in an updated and maintained form within
the OpenEmbedded community layers such as meta-oe
and
meta-gnome
. For the remainder, you can now find them in the
meta-extras
repository, which is in the
Source Repositories at
https://git.yoctoproject.org/meta-extras/.
Linux Kernel Naming
The naming scheme for kernel output binaries has been changed to now include PE as part of the filename:
KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PE}-${PV}-${PR}-${MACHINE}-${DATETIME}"
Because the PE variable is not set by default, these binary files could result with names that include two dash characters. Here is an example:
bzImage--3.10.9+git0+cd502a8814_7144bcc4b8-r0-qemux86-64-20130830085431.bin