freedomofpress / freedomofpress/kernel-builder
Support reproducible builds
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- Dominant language
- Python
- Stars
- 5
- Forks
- 3
- PR merge metrics
- No merged PRs in 30d
Description
See https://www.kernel.org/doc/html/latest/kbuild/reproducible-builds.html In order to support deterministic builds, set:
KBUILD_BUILD_TIMESTAMP- (and/or?)
SOURCE_DATE_EPOCH KBUILD_BUILD_USERKBUILD_BUILD_HOST
Also of note:
If you enable CONFIG_GCC_PLUGIN_RANDSTRUCT, you will need to pre-generate the random seed in scripts/gcc-plugins/randomize_layout_seed.h so the same value is used in rebuilds.
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked kernel reproducible-builds documentation and trace how this repository invokes kernel builds. Check how KBUILD_BUILD_TIMESTAMP, SOURCE_DATE_EPOCH, KBUILD_BUILD_USER, and KBUILD_BUILD_HOST could be supplied, and review scripts/gcc-plugins/randomize_layout_seed.h for the RANDSTRUCT case. Done means repeated builds use deterministic metadata and a stable random seed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux, python
- Domain
- build-system
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 45/100