jroelofs added a comment.

In https://reviews.llvm.org/D23420#513820, @zatrazz wrote:

> Yes, although in pratice for shared libraries this is not an issue (at least 
> on Linux with current linker strategies). And I open for suggestion on how to 
> proceed in this case since we have some other options:
>
> 1. Add the required soft-sp implementations when building for Linux (this 
> might happen not only on aarch64, but any other ABI that defines long double 
> using fallback soft-fp)


Are the softfp symbols you need not contained in libgcc.a?

> 2. Remove the possible soft-fp usages on all the tests. However this will 
> lead to possible remove *all* the FP cases if libcxx should be used in a pure 
> soft-fp platform

> 3. Only allows the libcxx + linunwind to be built against compiler-rt





https://reviews.llvm.org/D23420



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