<div dir="ltr"><div>Hi Steven,</div><div> </div><div>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. </div><div> </div><div>Best regards,</div><div> </div><div>Pedro </div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 13 Aug 2021 at 14:34, Steven Shi <<a href="mailto:steven.shi@intel.com">steven.shi@intel.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <div style="overflow-wrap: break-word;" lang="EN-US"> <div class="gmail-m_5193883781725377823WordSection1"> Liming, 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>. If the MSVC is not installed, the ucrt will complain cannot find the msvc header files. Below is an example: 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 In file included from BasePeCoff.c:13: In file included from ../Common\CommonLib.h:14: In file included from C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\assert.h:12: C:\Program Files (x86)\Windows Kits\10\Include\10.0.10240.0\ucrt\corecrt.h:10:10: fatal error: 'vcruntime.h' file not found #include <vcruntime.h> ^~~~~~~~~~~~~ 1 error generated. 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: $ /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 -### 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) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /home/jshi19/llvm/clang+llvm-11.0.0-x86_64-linux-gnu-ubuntu-20.04/bin "/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/crt1.o" "/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crti.o" "/usr/lib/gcc/x86_64-linux-gnu/10/crtbegin.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/crtend.o" "/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crtn.o" <div> Thanks Steven Shi Intel\SATG\SFP\FIA (Firmware Infrastructure Automation) </div> <div> <div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in"> From: <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>> On Behalf Of gaoliming Sent: Friday, August 13, 2021 9:18 AM To: <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> Subject: 回复: [edk2-devel] [2021-gsoc-llvm-gnumake]: proposal for building using llvm/gnumake </div> </div> Yuqi: On Windows, can Clang + make combination drop the dependency of Visual studio? If I don’t install Visual studio 2015 or 2017, I only install LLVM, can I fully compile BaseTools and Edk2 code? Thanks Liming <div> <div style="border-color:rgb(225,225,225) currentcolor currentcolor;border-style:solid none none;border-width:1pt medium medium;padding:3pt 0in 0in"> 发件人: <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>> 代表 Yuqi Chen 发送时间: 2021年8月12日 9:52 收件人: <a href="mailto:devel@edk2.groups.io" target="_blank">devel@edk2.groups.io</a> 主题: [edk2-devel] [2021-gsoc-llvm-gnumake]: proposal for building using llvm/gnumake </div> </div> <div> <h2>Hi,</h2> <h2> </h2> <h2>I want to push my change to my codes to edk2-staging, yet it seems like I don’t have permission to do so:</h2> <img style="width: 11.927in; height: 1.4062in;" id="gmail-m_5193883781725377823image002.png_x0040_01D78EF8.2F469F30" src="cid:17b4109bbdf4cff311" width="1145" height="135" border="0"> <h2> </h2> <h2>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.</h2> <h2>I also attach the readme file to go through the steps to build Basetools.</h2> <h2> </h2> <h2>Please review our codes and thank you very much for your time.</h2> <h2> </h2> <h2>Best regards,</h2> <h2>Yuqi</h2> </div> <div> </div> </div> </div> </blockquote></div> -- <div dir="ltr" class="gmail_signature"><div dir="ltr">Pedro Falcato</div></div> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links: You receive all messages sent to this group. <a target="_blank" href="https://edk2.groups.io/g/devel/message/79294">View/Reply Online (#79294)</a> | | <a target="_blank" href="https://groups.io/mt/84863402/1813853">Mute This Topic</a> | <a href="https://edk2.groups.io/g/devel/post">New Topic</a> <a href="https://edk2.groups.io/g/devel/editsub/1813853">Your Subscription</a> | <a href="mailto:devel+owner@edk2.groups.io">Contact Group Owner</a> | <a href="https://edk2.groups.io/g/devel/unsub">Unsubscribe</a> [edk2-devel-archive@redhat.com] <div width="1" style="color:white;clear:both">_._,_._,_</div>