[lld] [lld/ELF] Place large executable sections at the beginning (PR #70358)

[Reid Kleckner via llvm-commits]

https://github.com/rnk approved this pull request.

I think this looks good. From what I can tell you've addressed @MaskRay 's concern, but we should confirm.

https://github.com/llvm/llvm-project/pull/70358