[llvm-dev] Build Error from mlir-capi-ir-test

Wed Jan 13 09:14:58 PST 2021

Hi,

It may be an issue of our CMake script detecting correctly your
environment: I don't know what linker you're using.
You can look at the content of build/tools/lto/LTO.exports to see what's
wrong, and you can try to fix the generating script here:
https://github.com/llvm/llvm-project/blob/master/llvm/cmake/modules/AddLLVM.cmake#L92-L134

Feel free to send a patch! :)

-- 
Mehdi

On Wed, Jan 13, 2021 at 7:45 AM Vermeersch, Aaron <Aaron.Vermeersch at gdit.com>
wrote:

> Hello,
>
> I pulled from git again and re-did the installation. I didn't make it far
> enough into the installation to test the issue that I had as the
> installation failed with this:
>
> [ 49%] Built target LLVMXCoreCodeGen
>
> [ 49%] Built target LLVMXCoreDisassembler
>
> [ 49%] *Linking CXX shared library ../../lib/libLTO.so*
>
> /usr/bin/ld:/p/work1/avermeer/llvm-project/build/tools/lto/LTO.exports:3:
> syntax error in VERSION script
>
> collect2: error: ld returned 1 exit status
>
> make[3]: *** [lib/libLTO.so.12git] Error 1
>
> make[2]: *** [tools/lto/CMakeFiles/LTO.dir/all] Error 2
>
> make[1]: *** [CMakeFiles/check-all.dir/rule] Error 2
>
> make: *** [check-all] Error 2
>
>
> Aaron Vermeersch
>
> HPCMP PET Computational Scientist
> M   517.648.9980
>
> aaron.vermeersch at gdit.com
>
> www.gdit.com
>
> [image: cid:image001.png at 01D664F5.C0E0A040]
>
>
>
> ------------------------------
> *From:* Mehdi AMINI <joker.eph at gmail.com>
> *Sent:* Tuesday, January 12, 2021 4:34 PM
> *To:* Vermeersch, Aaron <Aaron.Vermeersch at gdit.com>
> *Cc:* llvm-dev at lists.llvm.org <llvm-dev at lists.llvm.org>
> *Subject:* Re: [llvm-dev] Build Error from mlir-capi-ir-test
>
>
>  *[External: Use caution with links & attachments]*
> Hi,
>
> It seems like you were unlucky and checked out a buggy revision: this was
> a known bug a couple of days ago. Please git pull and try again, let us
> know if you have any issues!
>
> Also MLIR folks communicate mainly here:
> https://llvm.discourse.group/c/mlir/31
> <https://urldefense.us/v2/url?u=https-3A__llvm.discourse.group_c_mlir_31&d=DwMFaQ&c=kBZcWdBOH-UDm7cX7sUnio9i4Dr7DDged-ltBm3Bq7Y&r=_ZfOCgFouUhaMZw8Eekg6AE3jogUblRXCLkTpccaBEM&m=c9B0CmUi9msp4zzuInINlYkTjXu3mJiJO4E3WDHFfKo&s=EG3h7Vr3DXCi2dGxcvVJ_VNtGIlkHIsBzNcXlvSUW58&e=>
>
> Best,
>
> --
> Mehdi
>
>
> --
> Mehdi
>
>
>
>
> On Tue, Jan 12, 2021 at 1:29 PM Vermeersch, Aaron via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> Hello,
>
> I'm having an issue installing LLVM and Flang on a SGI and Cray machine
> and both are giving me the same error. This is using the latest version
> from GitHub that I just downloaded. I use the following for the cmake
> instruction:
>
> cmake -G "Unix Makefiles" -DLLVM_ENABLE_PROJECTS=flang
> -DCMAKE_INSTALL_PREFIX=install_prefix -DCMAKE_CXX_COMPILER=pathway_to_g++
> -DCMAKE_C_COMPILER=pathway_to_gcc ../llvm
>
> The installation crashes with the following message:
>
> *Scanning dependencies of target mlir-capi-ir-test*
>
> [ 78%] Building C object
> tools/mlir/test/CAPI/CMakeFiles/mlir-capi-ir-test.dir/ir.c.o
>
> [ 78%] *Linking C executable ../../../../bin/mlir-capi-ir-test*
>
> CMakeFiles/mlir-capi-ir-test.dir/ir.c.o: In function `printAffineExpr':
>
> /llvm-project/mlir/test/CAPI/ir.c:1272: undefined reference to
> `mlirAffineExprIsNull'
>
> collect2: error: ld returned 1 exit status
>
> make[2]: *** [bin/mlir-capi-ir-test] Error 1
>
> make[1]: *** [tools/mlir/test/CAPI/CMakeFiles/mlir-capi-ir-test.dir/all]
> Error 2
>
> make: *** [all] Error 2
>
> In a previous build, I was able to use:
>
> cmake --build . --target check-mlir
>
> Following the instructions here:
> https://github.com/tensorflow/mlir/issues/138
> <https://urldefense.us/v2/url?u=https-3A__github.com_tensorflow_mlir_issues_138&d=DwMFaQ&c=kBZcWdBOH-UDm7cX7sUnio9i4Dr7DDged-ltBm3Bq7Y&r=_ZfOCgFouUhaMZw8Eekg6AE3jogUblRXCLkTpccaBEM&m=c9B0CmUi9msp4zzuInINlYkTjXu3mJiJO4E3WDHFfKo&s=NO9T5JyaOTnaEa4PSUpz0f7wABN1K5amrihKUtCj0GU&e=>
>  to fix a similar issue but it hasn't been successful this time. Does
> anyone know what might be happening and how to fix the issue?
>
> Aaron Vermeersch
>
> HPC Computational Scientist
>
>
>
> _______________________________________________
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> llvm-dev at lists.llvm.org
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>
>
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