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<p class="MsoNormal">Hi Pedro,<o:p></o:p></p>
<p class="MsoNormal">Your suggestion is interesting. We will try to enhance the clang Linux build and remove the libgcc dependency in the future.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This patch change is for a project of Google Summer of Code 2021, which is to build BaseTools with clang + gnu make in windows. We hope to focus the windows part only in this project. The project’s code check-in deadline is August 24<sup>th</sup>.
We plan to only check-in to edk2-staging right now because of edk2-stable202108 release code freezing. Yuqi will send out another version code review soon.<o:p></o:p></p>
<p class="MsoNormal"><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"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Steven Shi</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Intel\SATG\SFP\FIA (Firmware Infrastructure Automation)</span></b><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></b></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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<p class="MsoNormal"><b>From:</b> Pedro Falcato <pedro.falcato@gmail.com> <br>
<b>Sent:</b> Saturday, August 14, 2021 3:50 AM<br>
<b>To:</b> edk2-devel-groups-io <devel@edk2.groups.io>; Shi, Steven <steven.shi@intel.com><br>
<b>Cc:</b> gaoliming@byosoft.com.cn; yuqi.chen@mail.utoronto.ca<br>
<b>Subject:</b> Re: [edk2-devel] [2021-gsoc-llvm-gnumake]: proposal for building using llvm/gnumake<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Steven,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Have you considered using the --rtlib switch? It would eliminate the dependency on the system's libgcc, crtbegin/end.o and crti/o.o, for most systems. I don't know exactly how the build system works but I assume there's some way to force
a compiler flag.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best regards,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Pedro<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Fri, 13 Aug 2021 at 14:34, Steven Shi <<a href="mailto:steven.shi@intel.com">steven.shi@intel.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Liming,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The MSVC is required only because the Windows SDK Universal C runtime (UCRT) library depends on the MSVC. Please see the dependency description here: “When you install Visual C++,
Visual Studio setup installs the subset of the Windows 10 SDK required to use the UCRT.”
<a href="https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-features?view=msvc-160" target="_blank">
https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-features?view=msvc-160</a>.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">If the MSVC is not installed, the ucrt will complain cannot find the msvc header files. Below is an example:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">C:\Program Files\LLVM\bin\clang -c -I .. -I ../Include/Common -I ../Include/ -I ../Include/IndustryStandard -I ../Common/ -I .. -I . -I ../Include/X64/ -I "" -MD -fshort-wchar
-fno-strict-aliasing -fwrapv -fno-delete-null-pointer-checks -Wall -Werror -Wno-deprecated-declarations -Wno-self-assign -Wno-unused-result -nostdlib -Wno-unused-function -g -m32 -O2 BasePeCoff.c -o BasePeCoff.o<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In file included from BasePeCoff.c:13:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In file included from ../Common\CommonLib.h:14:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">In file included from C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\assert.h:12:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\corecrt.h:10:10: fatal error: 'vcruntime.h' file not<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> found<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#include <vcruntime.h><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> ^~~~~~~~~~~~~<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">1 error generated.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">BTW, the compiler dependency requirement also exists in Linux side. Below is the Linux GCC CRT library example. Although I build with clang, it still needs link the crt libraries
in GCC installation. Below is an example:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">$ /home/jshi19/llvm/clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04/bin/clang -o ../bin/LzmaCompress LzmaCompress.o Sdk/C/Alloc.o Sdk/C/LzFind.o Sdk/C/LzmaDec.o Sdk/C/LzmaEnc.o
Sdk/C/7zFile.o Sdk/C/7zStream.o Sdk/C/Bra86.o -L../libs -lCommon -###<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">clang version 11.0.0 (<a href="https://github.com/llvm/llvm-project.git" target="_blank">https://github.com/llvm/llvm-project.git</a> 0160ad802e899c2922bc9b29564080c22eb0908c)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Target: x86_64-unknown-linux-gnu<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thread model: posix<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">InstalledDir: /home/jshi19/llvm/clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04/bin<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">"/usr/bin/ld" "-z" "relro" "--hash-style=gnu" "--eh-frame-hdr" "-m" "elf_x86_64" "-dynamic-linker" "/lib64/ld-linux-x86-64.so.2" "-o" "../bin/LzmaCompress" "/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/<span style="color:red">crt1</span>.o"
"/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/<span style="color:red">crti</span>.o" "/usr/lib/gcc/x86_64-linux-gnu/10/<span style="color:red">crtbegin</span>.o" "-L../libs" "-L/usr/lib/gcc/x86_64-linux-gnu/10" "-L/usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/lib/../lib64"
"-L/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu" "-L/lib/x86_64-linux-gnu" "-L/lib/../lib64" "-L/usr/lib/x86_64-linux-gnu" "-L/usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/lib" "-L/usr/lib/gcc/x86_64-linux-gnu/10/../../.." "-L/home/jshi19/llvm/clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04/bin/../lib"
"-L/lib" "-L/usr/lib" "LzmaCompress.o" "Sdk/C/Alloc.o" "Sdk/C/LzFind.o" "Sdk/C/LzmaDec.o" "Sdk/C/LzmaEnc.o" "Sdk/C/7zFile.o" "Sdk/C/7zStream.o" "Sdk/C/Bra86.o" "-lCommon" "-lgcc" "--as-needed" "-lgcc_s" "--no-as-needed" "-lc" "-lgcc" "--as-needed" "-lgcc_s"
"--no-as-needed" "/usr/lib/gcc/x86_64-linux-gnu/10/<span style="color:red">crtend</span>.o" "/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/<span style="color:red">crtn</span>.o"<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Steven Shi</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Intel\SATG\SFP\FIA (Firmware Infrastructure Automation)</span></b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif"> </span></b><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:</b>
<a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a> <<a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a>>
<b>On Behalf Of </b>gaoliming<br>
<b>Sent:</b> Friday, August 13, 2021 9:18 AM<br>
<b>To:</b> <a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a>;
<a href="mailto:yuqi.chen@mail.utoronto.ca" target="_blank">yuqi.chen@mail.utoronto.ca</a><br>
<b>Subject:</b> <span lang="ZH-CN" style="font-family:SimSun">回复</span>: [edk2-devel] [2021-gsoc-llvm-gnumake]: proposal for building using llvm/gnumake<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:DengXian">Yuqi:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:DengXian"> On Windows, can Clang + make combination drop the dependency of Visual studio? If I don<span lang="ZH-CN">’</span>t install
Visual studio 2015 or 2017, I only install LLVM, can I fully compile BaseTools and Edk2 code?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:DengXian"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:DengXian">Thanks</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.5pt;font-family:DengXian">Liming</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span lang="ZH-CN" style="font-family:DengXian">发件人</span></b><b><span style="font-family:DengXian">:</span></b><span style="font-family:DengXian">
<a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a> <<a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a>>
<b><span lang="ZH-CN">代表 </span></b>Yuqi Chen<br>
<b><span lang="ZH-CN">发送时间</span>:</b> 2021<span lang="ZH-CN">年</span>8<span lang="ZH-CN">月</span>12<span lang="ZH-CN">日</span> 9:52<br>
<b><span lang="ZH-CN">收件人</span>:</b> <a href="mailto:devel@edk2.groups.io" target="_blank">
devel@edk2.groups.io</a><br>
<b><span lang="ZH-CN">主题</span>:</b> [edk2-devel] [2021-gsoc-llvm-gnumake]: proposal for building using llvm/gnumake</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal">Hi,</span></strong><o:p></o:p></h2>
<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal"> </span></strong><o:p></o:p></h2>
<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal">I want to push my change to my codes to edk2-staging, yet it seems like I don’t have permission to do so:</span></strong><o:p></o:p></h2>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><img border="0" width="1145" height="135" style="width:11.927in;height:1.4062in" id="gmail-m_5193883781725377823image002.png_x0040_01D78EF8.2F469F30" src="cid:image001.png@01D793B1.43CD2010"><o:p></o:p></p>
<h2><strong><span style="font-family:"Calibri Light",sans-serif"> </span></strong><o:p></o:p></h2>
<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal">My mentor and I have enabled edk2 building using llvm+make and gnumake+clang in windows command prompt. The attached patch indicates changes we made to make this
happen.</span></strong><o:p></o:p></h2>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<h2><span style="color:black">I also attach the readme file to go through the steps to build Basetools.</span><o:p></o:p></h2>
<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal"> </span></strong><o:p></o:p></h2>
<h2><strong><span style="font-family:"Calibri Light",sans-serif;color:black;font-weight:normal">Please review our codes and thank you very much for your time.</span></strong><o:p></o:p></h2>
<h2> <o:p></o:p></h2>
<h2><span style="color:black">Best regards,</span><o:p></o:p></h2>
<h2><span style="color:black">Yuqi</span><o:p></o:p></h2>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<br>
-- <o:p></o:p></p>
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<p class="MsoNormal">Pedro Falcato<o:p></o:p></p>
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