4.15 Moving to the Yocto Project 2.7 Release
This section provides migration information for moving to the Yocto Project 2.7 Release from the prior release.
4.15.1 BitBake Changes
The following changes have been made to BitBake:
BitBake now checks anonymous Python functions and pure Python functions (e.g.
def funcname:) in the metadata for tab indentation. If found, BitBake produces a warning.
Bitbake now checks BBFILE_COLLECTIONS for duplicate entries and triggers an error if any are found.
4.15.2 Eclipse Support Removed
Support for the Eclipse IDE has been removed. Support continues for those releases prior to 2.7 that did include support. The 2.7 release does not include the Eclipse Yocto plugin.
qemu-native Splits the System and User-Mode Parts
The system and user-mode parts of
qemu-native are now split.
qemu-native provides the user-mode components and
qemu-system-native provides the system components. If you have
recipes that depend on QEMU’s system emulation functionality at build
time, they should now depend upon
qemu-system-native instead of
upstream-tracking.inc File Has Been Removed
The previously deprecated
upstream-tracking.inc file is now removed.
UPSTREAM_TRACKING* variables are now set in the corresponding
Remove any references you have to the
upstream-tracking.inc file in
DISTRO_FEATURES_LIBC Variable Has Been Removed
DISTRO_FEATURES_LIBC variable is no longer used. The ability to
configure glibc using kconfig has been removed for quite some time
libc-* features set no longer effective.
Remove any references you have to
DISTRO_FEATURES_LIBC in your own
4.15.6 License Value Corrections
The following corrections have been made to the LICENSE values set by recipes:
LICENSEto be “GPLv2” rather than “GPLv2+”.
libgfortran: Set license to “GPL-3.0-with-GCC-exception”.
elfutils: Removed “Elfutils-Exception” and set to “GPLv2” for shared libraries
4.15.7 Packaging Changes
This section provides information about packaging changes.
nsupdatebinary has been moved to the
Debug split: The default debug split has been changed to create separate source packages (i.e. package_name
-src). If you are currently using
dbg-pkgsin IMAGE_FEATURES to bring in debug symbols and you still need the sources, you must now also add
IMAGE_FEATURES. Source packages remain in the target portion of the SDK by default, unless you have set your own value for SDKIMAGE_FEATURES that does not include
Mount all using
/etc/default/mountallhas moved into the -mount sub-package.
Splitting binaries using
util-linuxnow splits each binary into its own package for fine-grained control. The main
util-linuxpackage pulls in the individual binary packages using the RRECOMMENDS and RDEPENDS variables. As a result, existing images should not see any changes assuming NO_RECOMMENDATIONS is not set.
/etc/hostshas moved from
tzdata: The main package has been converted to an empty meta package that pulls in all
tzdatapackages by default.
lrzsz: This package has been removed from
packagegroup-core-tools-testapps. The X/Y/ZModem support is less likely to be needed on modern systems. If you are relying on these packagegroups to include the
lrzszpackage in your image, you now need to explicitly add the package.
4.15.8 Removed Recipes
The following recipes have been removed:
gcc: Drop version 7.3 recipes. Version 8.3 now remains.
linux-yocto: Drop versions 4.14 and 4.18 recipes. Versions 4.19 and 5.0 remain.
go: Drop version 1.9 recipes. Versions 1.11 and 1.12 remain.
xvideo-tests: Became obsolete.
libart-lgpl: Became obsolete.
gtk-icon-utils-native: These tools are now provided by gtk+3-native
gcc-cross-initial: No longer needed. gcc-cross/gcc-crosssdk is now used instead.
gcc-crosssdk-initial: No longer needed. gcc-cross/gcc-crosssdk is now used instead.
glibc-initial: Removed because the benefits of having it for site_config are currently outweighed by the cost of building the recipe.
4.15.9 Removed Classes
The following classes have been removed:
distutils-tools: This class was never used.
bugzilla.bbclass: Became obsolete.
distrodata: This functionally has been replaced by a more modern tinfoil-based implementation.
4.15.10 Miscellaneous Changes
The following miscellaneous changes occurred:
distrosubdirectory of the Poky repository has been removed from the top-level
Perl now builds for the target using perl-cross for better maintainability and improved build performance. This change should not present any problems unless you have heavily customized your Perl recipe.
arm-tunes: Removed the “-march” option if mcpu is already added.
update-alternatives: Convert file renames to PACKAGE_PREPROCESS_FUNCS
sstatecompletionscode has been removed.
inetutils: This recipe has rsh disabled.