[PATCH] D85408: Let -basic-block-sections=labels emit basicblock metadata in a new .bb_addr_map section, instead of emitting special unary-encoded symbols.

[Fangrui Song via Phabricator via llvm-commits]

MaskRay requested changes to this revision.
MaskRay added a comment.
This revision now requires changes to proceed.

I am still reading the patch, but I have noticed one thing worth discussing. `.bb_addr_map` is a non-SHF_ALLOC section (meaning that it is not part of the memory image). An absolute relocation type (`.quad	.Lfunc_begin0`) works but the value is a link-time address, not taking account of the load base (PIE/shared object)). How do you intend to use `.bb_addr_map` at runtime?


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  https://reviews.llvm.org/D85408/new/

https://reviews.llvm.org/D85408