[llvm-dev] LibC++ failure on ARM

[Craig, Ben via llvm-dev]

What C library is being used?  Maybe newlocale with the empty string 
returns NULL with that C library.

My suspicion is that the test is failing in the test block starting at 
line 48, where a std::locale is constructed with the empty string.

On 7/11/2016 9:15 AM, Renato Golin via llvm-dev wrote:
> Hi Marshal,
>
> ARM has recently moved the buildslave from single test to with/without
> exception:
>
> http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-arm-linux
>
> http://lab.llvm.org:8011/builders/libcxx-libcxxabi-libunwind-arm-linux-noexceptions
>
> but both slaves have the same error that wasn't there before:
>
> ******************** TEST 'libc++ ::
> std/localization/locale.categories/category.ctype/locale.ctype.byname/types.pass.cpp'
> FAILED
> Exit Code: -6
> Standard Error:
> --
> terminating with uncaught exception of type std::runtime_error:
> collate_byname<char>::collate_byname failed to construct for
> --
>
> Compiled test failed unexpectedly!
> ********************
>
> This is the patch that changed the configuration:
> http://llvm.org/viewvc/llvm-project?view=revision&revision=274747
>
> and the only thing I can think could have caused it is the change in
> librry order:
>
> -            lit_extra_opts={'link_flags': '"-lc++abi -lc -lm
> -lpthread -lunwind -ldl -L/opt/llvm/lib/clang/3.6.0/lib/linux
> -lclang_rt.builtins-arm"'},
> +            lit_extra_opts={'link_flags': '"-lc++abi -lpthread
> -lunwind -ldl -lc -lm -L/opt/llvm/lib/clang/3.6.0/lib/linux
> -lclang_rt.builtins-arm"'},
>
> Any ideas?
>
> cheers,
> -renato
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