[PATCH] D102453: [CMake][ELF] Add -fno-semantic-interposition for GCC and Clang>=13

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

In D102453#2769978 <https://reviews.llvm.org/D102453#2769978>, @phosek wrote:

> Have you considered using `-fvisibility=protected` instead?

I have considered it and excluded that option. Options affecting variables are incompatible with -fno-pic caused copy relocations.

Worse, -fvisbility=protected is very broken in the GNU x86 world (not broken in clang/lld world, not broken in the non-x86 world). https://maskray.me/blog/2021-01-09-copy-relocations-canonical-plt-entries-and-protected


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https://reviews.llvm.org/D102453