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<p class="MsoNormal">Hi Rui, Peter,<o:p></o:p></p>
<p class="MsoNormal">We meet a problem to use lld-link to generate uefi binary. It is related to the lld-link force to use float point lib symbol: _fltused. Uefi binary doesn’t use any external float point lib and we don’t know how to tell lld-link not to emit
the float point lib symbol. Below is a simplified example to reproduce this issue. Please give me some advice. Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">$ cat main.c<o:p></o:p></p>
<p class="MsoNormal">double v=0;<o:p></o:p></p>
<p class="MsoNormal">void mainfunction(){<o:p></o:p></p>
<p class="MsoNormal"> v+=1;<o:p></o:p></p>
<p class="MsoNormal">}<o:p></o:p></p>
<p class="MsoNormal">$ ~/llvm-project/releaseinstall/bin/clang -c -Oz -flto -target x86_64-unknown-windows main.c -o main.ir<o:p></o:p></p>
<p class="MsoNormal">$ ~/llvm-project/releaseinstall/bin/lld-link /machine:X64 /DLL /ENTRY:mainfunction main.ir /OUT:main.dll<o:p></o:p></p>
<p class="MsoNormal"><span style="color:red">lld-link: error: undefined symbol: _fltused<o:p></o:p></span></p>
<p class="MsoNormal">>>> referenced by lto.tmp<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>
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