llvm dev - Jul 2020 - Ask for helpping to compile compiler-rt, thanks

Dear Everyone;

               I am an engineer that design compile project with LLVM and
encounter 64bit Multiplication, division Issues.

               I read the LLVM documents and add the compiler-rt library to
solve the problem above.

               But when I compiler the compiler-rt library, I always encounter
compile errors as attachment.
               It seems a compiler check error, and many solutions to solve it.

               I tried many method but fail until now.

               Could you give me some suggestion to solve this issue.

               My developing environment is Ubuntu 20.04,  LLVM version 10.0.0, 
Clang version 10.0.0

              Thanks a lot .

               Best Regards


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Just compiled compiler-rt OK on Ubuntu 20.04.

cd /home/*??*/Documents/llvm-project

rm -rf build

mkdir build

cd build

cmake -G Ninja -DLLVM_ENABLE_PROJECTS="clang;llvm;compiler-rt" 
-DLLVM_USE_LINKER=lld -DCMAKE_BUILD_TYPE="Release" 
-DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_LIBPFM=OFF 
-DRUN_HAVE_GNU_POSIX_REGEX=0 -DRUN_HAVE_THREAD_SAFETY_ATTRIBUTES=0 
-Wno-dev ../llvm &> /home/*??*/Documents/cmake.log

ninja &> /home/*??*/Documents/ninja.log

ninja.log ends with

[3790/3791] Linking CXX executable bin/llvm-readobj
[3791/3791] Generating ../../bin/llvm-readelf

There may be some other aspects that need tweaking but let's start with 
the above.

Let's see your command sequence,

Change ?? as needed.

Neil Nelson

On 7/8/20 8:47 PM, Zhenxiang Li via llvm-dev wrote:
>
> Dear Everyone;
>
>                I am an engineer that design compile project with LLVM 
> and encounter 64bit Multiplication, division Issues.
>
>                I read the LLVM documents and add the compiler-rt 
> library to solve the problem above.
>
>                But when I compiler the compiler-rt library, I always 
> encounter compile errors as attachment.
>
>                It seems a compiler check error, and many solutions to 
> solve it.
>
>                I tried many method but fail until now.
>
>                Could you give me some suggestion to solve this issue.
>
>                My developing environment is Ubuntu 20.04,  LLVM 
> version 10.0.0,  Clang version 10.0.0
>
>               Thanks a lot .
>
>                Best Regards
>
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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