[edk2-devel] Current State of Build Reproducibility in edk2

["Oliver Smith-Denny via groups.io" <osde=linux.microsoft.com@groups.io>]

Hi,

What is the current state of build reproducibility in edk2?
I saw some mail threads about it awhile back and have looked
at this
https://tianocore-docs.github.io/edk2-BuildSpecification/release-1.28/12_build_changes_and_customizations/126_build_reproducibility.html#126-build-reproducibility,
which seems to claim that you can just do a RELEASE build with
MDEPKG_NDEBUG set and get binary compatible builds.

However, when attempting that with a clean OVMF IA32X64 VS2022 RELEASE
build at the same commit (and rebuilt basetools), I am getting
significantly different FDs and FVs. The driver files are almost
identical except for what I am assuming is a build identifier or
timestamp.

Are there any additional resources or thoughts towards complete binary
reproducible builds?

Thanks,
Oliver


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