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Subject: Re: [PATCH v3] rust: Avoid passing host-specific information to crates Strict Version Hash
To: openembedded-core@lists.openembedded.org
From: "Dora, Sunil Kumar" <SunilKumar.Dora@windriver.com>
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Date: Wed, 26 Aug 2026 11:25:49 -0700
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Hi Alejandro,

Thanks for chasing this one down. Small notes on v3:

The commit is tagged [YOCTO #15554], but that bug is "reproducibility
failures with 'rustdoc' on rust 1.75" (path-length dependent), RESOLVED FIX=
ED
since 2024-08-01 via codegen-units=3D1 / lto=3Doff.

What you describe here - artifacts differing by build host arch, causing
cross-architecture sstate matches - looks like:

[YOCTO #16376] AB-INT: build system architecture reproducibility issue
https://bugzilla.yoctoproject.org/show_bug.cgi?id=3D16376

which is still open. Could you retag it in v4, unless you had a reason to
point at 15554 that I'm missing?
---
One pointer that may or may not be relevant: the 1.97.1 upgrade (65271a5d3b=
)
carries an LLVM backport:

0043-LoopUnroll-Iterate-exit-fold-candidates-in-determini.patch

added for a repro issue seen with rust 1.97.0. I haven't looked at whether =
it
interacts with the SVH path at all - just flagging it in case it's useful c=
ontext.

Thanks,
Sunil Dora

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<div>Hi Alejandro,<br /><br />Thanks for chasing this one down. Small notes=
 on v3:<br /><br />The commit is tagged [YOCTO #15554], but that bug is "re=
producibility<br />failures with 'rustdoc' on rust 1.75" (path-length depen=
dent), RESOLVED FIXED<br />since 2024-08-01 via codegen-units=3D1 / lto=3Do=
ff.<br /><br />What you describe here - artifacts differing by build host a=
rch, causing<br />cross-architecture sstate matches - looks like:<br /><br =
/>&nbsp; [YOCTO #16376] AB-INT: build system architecture reproducibility i=
ssue<br />&nbsp; https://bugzilla.yoctoproject.org/show_bug.cgi?id=3D16376<=
br /><br />which is still open. Could you retag it in v4, unless you had a =
reason to<br />point at 15554 that I'm missing?<br />---<br />One pointer t=
hat may or may not be relevant: the 1.97.1 upgrade (65271a5d3b)<br />carrie=
s an LLVM backport:<br /><br />&nbsp; 0043-LoopUnroll-Iterate-exit-fold-can=
didates-in-determini.patch<br /><br />added for a repro issue seen with rus=
t 1.97.0. I haven't looked at whether it<br />interacts with the SVH path a=
t all - just flagging it in case it's useful context.<br /><br />Thanks,<br=
 />Sunil Dora</div>

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