[PATCH] D83242: [clang][BPF] support expr with typedef/record type for FIELD_EXISTENCE reloc

[Yonghong Song via Phabricator via cfe-commits]

yonghong-song added a comment.

In D83242#2167721 <https://reviews.llvm.org/D83242#2167721>, @anakryiko wrote:

> After thinking about this a bit more, I think adding a new TYPE_EXISTENCE (instead of FIELD_EXISTENCE) relocation type is the better way to handle this. It would allow Clang to be stricter as to what is passed into FIELD_EXISTENCE (only fields, not types) vs TYPE_EXISTENCE(only types, no fields). It will make it cleaner on libbpf side as well, because the validation and relocation logic is different between handling fields and types. So overall, I think it will be beneficial on every level of the stack to separate them.  I hope it's not too hard to make this change?


Yes. Sounds better to separate them as they handle disjoint patterns. Will make the change.


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https://reviews.llvm.org/D83242