[lld] [MTE] [lld] Don't tag symbols in sections with implicit start/stop (PR #73531)

[Jessica Clarke via llvm-commits]

jrtc27 wrote:

What about things like `__FOO_START__` and `__FOO_END__`?

We hit a similar issue with ELF's lack of expressiveness for CHERI and have to add more heuristics than just this case.

https://github.com/llvm/llvm-project/pull/73531