[Openmp-dev] ld too old?

Itaru Kitayama via Openmp-dev openmp-dev at lists.llvm.org
Sat Dec 21 20:34:16 PST 2019


Checking also the LLVM OpenMP project page: https://openmp.llvm.org/ seems
to be updated
partially, but most of them are talking about couples years ago's stuff and
old GCC releases
are said to be supported.

On Sun, Dec 22, 2019 at 1:16 PM Itaru Kitayama <itaru.kitayama at gmail.com>
wrote:

> Per the document: https://llvm.org/docs/GettingStarted.html , GCC
> requreiment is just 5.1.0 or higher.
> So I suspect there's a strict requirement for GCC, when enabling the
> OpenMP offloading features.
>
> On Fri, Dec 20, 2019 at 10:14 AM Jeff Hammond <jeff.science at gmail.com>
> wrote:
>
>> Please response on the list.
>>
>> You'll have to look at the Clang docs for minimum compiler versions but I
>> think this is a library issue and perhaps can be solved by setting
>> -std=c++11 or perhaps the ABI preprocess macro (
>> https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html).
>>
>> Jeff
>>
>> On Thu, Dec 19, 2019 at 5:09 PM Itaru Kitayama <itaru.kitayama at gmail.com>
>> wrote:
>>
>>> are you saying for tunk Clang we need GCC 9 or higher? Clang right now
>>> depends on 8.3.0.
>>>
>>> On Fri, Dec 20, 2019 at 9:59 AM Jeff Hammond <jeff.science at gmail.com>
>>> wrote:
>>>
>>>> This likely has nothing to do with ld.  You appear to need a newer
>>>> compiler or, more specifically, a newer C++ standard library.
>>>>
>>>>
>>>> https://stackoverflow.com/questions/37004976/undefined-reference-to-processstd-cxx11basic-string-when-compiling-a and
>>>> similar things you can find online have details.
>>>>
>>>> Jeff
>>>>
>>>> On Thu, Dec 19, 2019 at 3:39 PM Itaru Kitayama via Openmp-dev <
>>>> openmp-dev at lists.llvm.org> wrote:
>>>>
>>>>> Is the ld I'm using too old? I can work around this with -fuse-ld=lld
>>>>> though.
>>>>>
>>>>> $ clang++ -fopenmp -fopenmp-targets=nvptx64 test.cpp
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::basic_string(char const*,
>>>>> std::allocator<char> const&)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_M_create(unsigned long&,
>>>>> unsigned long)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_M_dispose()@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::operator=(char
>>>>> const*)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_M_capacity(unsigned
>>>>> long)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_M_data()
>>>>> const at GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::c_str() const at GLIBCXX_3.4.21
>>>>> '
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_S_copy_chars(char*, char*,
>>>>> char*)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::_M_data(char*)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::_M_local_data()@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::basic_string()@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::~basic_string()@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>,
>>>>> std::allocator<char> > const&)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char> >::_M_set_length(unsigned
>>>>> long)@GLIBCXX_3.4.21'
>>>>> /usr/local/software/jureca/Stages/2019a/software/binutils/2.32-GCCcore-8.3.0/bin/ld:
>>>>> /p/project/cjzam11/kitayama1/opt/clang/201912192353/bin/../lib/libomptarget.so:
>>>>> undefined reference to `std::__cxx11::basic_string<char,
>>>>> std::char_traits<char>, std::allocator<char>
>>>>> >::_Alloc_hider::_Alloc_hider(char*, std::allocator<char>
>>>>> const&)@GLIBCXX_3.4.21'
>>>>> clang-10: error: linker command failed with exit code 1 (use -v to see
>>>>> invocation)
>>>>> _______________________________________________
>>>>> Openmp-dev mailing list
>>>>> Openmp-dev at lists.llvm.org
>>>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev
>>>>>
>>>>
>>>>
>>>> --
>>>> Jeff Hammond
>>>> jeff.science at gmail.com
>>>> http://jeffhammond.github.io/
>>>>
>>>
>>
>> --
>> Jeff Hammond
>> jeff.science at gmail.com
>> http://jeffhammond.github.io/
>>
>
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