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<p class="MsoNormal">Hi Rui,<o:p></o:p></p>
<p class="MsoNormal">Just let you know that we finally enabled the ¡°cross os/host reproducible build¡± for Uefi firmware, which is to generate exactly same firmware release binary across different operating systems(e.g. Linux, Windows). The magic behind it is
that we use the clang and llvm linker (lld) as the cross-OS build toolchain: <a href="https://github.com/lgao4/edk2/tree/CLANG9#cross-oshost-reproducible-build">
https://github.com/lgao4/edk2/tree/CLANG9#cross-oshost-reproducible-build</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The ¡°cross os/host reproducible build¡± is an extension for reproducible build (<a href="https://reproducible-builds.org/">https://reproducible-builds.org/</a>) and make the firmware binary to be real OS independent, which has several significant
benefits for us:<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">¡¤<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Cut the validation/testing effort for different OS built binaries.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">¡¤<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Harden firmware binary security, guarantee identical build results in different OS.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">¡¤<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Easily to support customer and reproduce their build or runtime failures<span lang="ZH-CN" style="font-family:ËÎÌå">¡£</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you again for your help in our enabling work. LLVM is really cool!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Steven<o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
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