Bitbake debug

Skill Higangssh/yocto-agent-skills/skills/bitbake-debug

Debug BitBake and Yocto build failures from task logs, run scripts, metadata expansion, packages, providers, rootfs errors, fetch/patch/configure/compile/install/package/image failures, and common QA messages. Use when the user provides BitBake output, tmp/work logs, do_* task failures, package/rootfs errors, or asks how to diagnose a Yocto build.From its SKILL.md

Install

npx -y skills add Higangssh/yocto-agent-skills --skill bitbake-debug

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

6 stars6 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
runs commandsInstructs the agent to run 8 commands, including `bitbake-layers show-layers` and 7 more.

SKILL.md

2.8 KB, 651 tokens by cl100k_base, as published. Nobody here has run it

BitBake Debug

Use this skill to diagnose Yocto/BitBake failures from concrete evidence. Prefer log.do_*, run.do_*, bitbake -e, bitbake-layers, and pkgdata over guesses.

Evidence First

Ask for or inspect:

failing target and task
first fatal error, not only the final summary
tmp/work/.../temp/log.do_<task>
tmp/work/.../temp/run.do_<task>
conf/local.conf
conf/bblayers.conf
affected recipe or bbappend

Useful commands:

bitbake-layers show-layers
bitbake-layers show-recipes <recipe>
bitbake-layers show-appends
bitbake -e <recipe>
bitbake -c listtasks <recipe>
bitbake -c devshell <recipe>
bitbake -g <target>
oe-pkgdata-util list-pkgs
oe-pkgdata-util find-path '*/path/or/file'

Task Playbook

do_fetch: verify SRC_URI, protocol, branch, SRCREV, checksums, network policy, mirrors, DL_DIR, and credentials only when the source is private.
do_unpack: verify archive layout, S, multi-source unpack paths, and subdirectories.
do_patch: verify patch path, strip level, order, fuzz, upstream status, and apply=yes/no only when automatic patch handling is wrong.
do_configure: verify inherited class, PACKAGECONFIG, EXTRA_OECONF, EXTRA_OECMAKE, EXTRA_OEMESON, DEPENDS, and recipe-sysroot.
do_compile: verify compiler command, generated files, missing -native tools, cross variables, and parallel race signs.
do_install: verify installation under ${D}, permissions, ownership, and paths using ${bindir}, ${libdir}, ${sysconfdir}, etc.
do_package / do_package_qa: verify package splits, FILES:*, runtime dependencies, and QA tags.
do_rootfs: verify package names, providers, IMAGE_INSTALL, license policy, package conflicts, and postinstall scripts.
do_image: verify rootfs completion, IMAGE_FSTYPES, WIC kickstart, boot artifacts, and deploy output.

References

Read ../../references/shared/yocto-field-guide.md for the broader task playbook.
Read ../../references/yocto/qa-errors.md for common QA failures.
Read ../../references/bitbake/variables-core.md when the fix depends on variable semantics.

Output

For every diagnosis, provide:

most likely cause
evidence that supports it
exact next command or metadata change
why this is the Yocto/BitBake fix
validation command

What ships with it: 3 files

22.9 KB alongside SKILL.md