[PATCH] D102090: [CMake][ELF] Link libLLVM.so and libclang-cpp.so with -Bsymbolic-functions

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

To add on rnk's comment (deduplication of vague linkage data which may be included in multiple shared objects), another big reason is -Bsymbolic data does not work with copy relocations. -fno-pic programs generally cannot avoid copy relocations (except mips; mips did this thing correctly). GCC 5 x86-64 has a regression <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98112> that -fpie code can have copy relocations, too.


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  https://reviews.llvm.org/D102090/new/

https://reviews.llvm.org/D102090