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You can either:
a) switch to individual clones of bitbake, openembedded-core, meta-yocto and yocto-docs
b) use the new bitbake-setup
You can find information about either approach in our documentation:
https://docs.yoctoproject.org/
Note that "poky" the distro setting is still available in meta-yocto as
before and we continue to use and maintain that.
Long live Poky!
Some further information on the background of this change can be found
in: https://lists.openembedded.org/g/openembedded-architecture/message/2179
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The git commit hashes for the kernel checkout are not reproducible under
certain conditions:
- If the git repository is initialized on an archive (rather than a
git), the initial git commit not only has the current user name set,
it also uses the current system time as committer and author date.
This will affect the initial git hash and thus all subsequent ones.
- The patches applied by the kern-tools have a valid author and date.
However, their committer again depends on the user building the BSP.
This is an issue, for example, if one compiles a kernel with
CONFIG_LOCALVERSION_AUTO enabled where the commit hash lands into the
kernel and thus the package version. This not only makes the package
version non-reproducible, but also leads to version mismatches between
kernel modules built against a fresh kernel checkout and the kernel
retrieved from the sstate cache.
The class uses 'check_git_config' from utils.bbclass, but this only sets
the git user and only if none existed before. Thus it doesn't really
help here.
Since in Git the committer information can be set only from the
environment variables GIT_COMMITTER_NAME, GIT_COMMITTER_EMAIL, and
GIT_COMMITTER_DATE, we introduce a helper function to set those and
apply the author settings in the same way.
As values simply use PATCH_GIT_USER_NAME, PATCH_GIT_USER_EMAIL (from
patch.bbclass) and SOURCE_DATE_EPOCH.
For convenience, put the new helper 'reproducible_git_committer_author'
into utils.bbclass next to 'check_git_config' so others can use it, too.
Using this helper in kernel-yocto.bbclass makes the committer and author
date/name/email for the initial commit reproducible, as well as the
committer name/email for the patches applied with kern-tools.
For debugging purpose, allow disabling the reproducibility features by
setting KERNEL_DEBUG_TIMESTAMPS to "1".
Suggested-by: Felix Klöckner <F.Kloeckner@weinmann-emt.de>
(From OE-Core rev: aab4517b4649917abd519ea85a20fd9d51bf3d99)
Signed-off-by: Enrico Jörns <ejo@pengutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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LLVM has changed the ELF header dump format [1], the code in oe_libinstall
relied upon the format and processed the SONAME inside square brackets
e.g.
0x000000000000000e (SONAME) Library soname: libreadline.so.8
with older readelf from ( llvm <19 or GNU binutils objdump ) we get
0x000000000000000e (SONAME) Library soname: [libreadline.so.8]
The check in oe_libinstall will now trip over ELF files read by llvm-readelf
from llvm19+
To make it portable which works across GNU binutils and LLVM tools
switch to using objdump -p to dump the ELF file and modify the regexp
accordingly, as an aside, the post processing expression is simplified
too
[1] https://github.com/llvm/llvm-project/pull/96562
(From OE-Core rev: 11ea8dc57f275057e19db564e6c55d2baea980b0)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Replace `${HOST_PREFIX}readelf` with `${READELF}`.
When utilizing llvm for compiling packages, the invocation of GNU readelf
will consistently occur if the oe_soinstall and oe_libinstall functions,
which are defined in utils.bbclass, are called. This behavior is unfriendly
to llvm. So prefer `${READELF}` over `${HOST_PREFIX}readelf`.
(From OE-Core rev: daecdd577213da0c045e45c47e7acbd279956d41)
Signed-off-by: lixiaoyong <lixiaoyong19@huawei.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Move classes to classes-global or classes-recipe as appropriate to take
advantage of new bitbake functionality to check class scope/usage.
(From OE-Core rev: f5c128008365e141082c129417eb72d2751e8045)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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