370de0fa91
Running `devtool search gcc` would result in errors like this for virtual recipes: ERROR: When reparsing .../meta/recipes-devtools/gcc/libgcc-initial_13.2.bb:do_populate_sysroot, the basehash value changed from b1cd809ed98cef9db0fb1b17d34c4083e739c336f9d5619b89715b0294d81af5 to 44c2f92781dc4a20e98b7bb4724e204e64b101905fa75e71241a574b725997dc. The metadata is not deterministic and this needs to be fixed. ERROR: The following commands may help: ERROR: $ bitbake libgcc-initial -cdo_populate_sysroot -Snone ERROR: Then: ERROR: $ bitbake libgcc-initial -cdo_populate_sysroot -Sprintdiff The reason was the newly introduced :layer-<layername> override, which is used, e.g., in meta/classes-global/insane.bbclass to add the patch-status QA test only for the meta layer: ERROR_QA:append:layer-core = " patch-status" When tinfoil parsed the recipes using the parseRecipeFile() function, it failed to properly identify the layername for virtual recipes, which resulted in the error above. The correct thing to do is to make parseRecipeFile() call bb.cache.virtualfn2realfn() to convert the virtual filename into a real filename and virtual class. (Bitbake rev: da2aed134412f5de04d7b540f92d735983ad0108) Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website: https://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated html version at the Yocto Project website: https://docs.yoctoproject.org
Bitbake requires Python version 3.8 or newer.
Contributing
Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.
As a quick guide, patches should be sent to bitbake-devel@lists.openembedded.org The git command to do that would be:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
If you're sending a patch related to the BitBake manual, make sure you copy the Yocto Project documentation mailing list:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org
Mailing list:
https://lists.openembedded.org/g/bitbake-devel
Source code:
https://git.openembedded.org/bitbake/
Testing
Bitbake has a testsuite located in lib/bb/tests/ whichs aim to try and prevent regressions. You can run this with "bitbake-selftest". In particular the fetcher is well covered since it has so many corner cases. The datastore has many tests too. Testing with the testsuite is recommended before submitting patches, particularly to the fetcher and datastore. We also appreciate new test cases and may require them for more obscure issues.
To run the tests "zstd" and "git" must be installed.
The assumption is made that this testsuite is run from an initialized OpenEmbedded build
environment (i.e. source oe-init-build-env is used). If this is not the case, run the
testsuite as follows:
export PATH=$(pwd)/bin:$PATH
bin/bitbake-selftest
The testsuite can alternatively be executed using pytest, e.g. obtained from PyPI (in this case, the PATH is configured automatically):
pytest