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

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

On 6/18/2025 5:21 PM, Michael D Kinney via groups.io wrote:
> Should work for physical platform builds.
> 
> The OVMF and EmulatorPkg build may have some timestamps in them.
> 
> If the EmbeddedPkg VirtualRealTimeClockLib is used, then it pulls in system time
> in Linux builds.  I have a proposal to address this one queued up to support
> both windows and linux and reproducible builds when needed.
> 
> [BuildOptions]
>    GCC:*_*_*_CC_FLAGS = -DBUILD_EPOCH=`printenv SOURCE_DATE_EPOCH || date +%s`
> 
> The following is a good resource on this topic and all the
> elements need to be tracked so issues do not get introduced.
> 
> 	https://reproducible-builds.org/docs/
> 

Thanks, let me play around with this some more. It may be that the
platform I started trying this with had some similar dependencies.

Thanks,
Oliver



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