dfaust added a comment.
> in the final BTF, type tags have to precede CVR modifiers, e.g. TYPE_TAG > 'foo' -> CONST -> INT. Right now pahole does not do any reordering, so I > ended up putting the type tag annotations on the DIE with outermost modifier. > Will see if DI maintainers would be ok with this. Ok I was not aware of that requirement. Internally GCC converts DWARF representation to BTF for BTF emission so we get (for the volatile example): [1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED [2] TYPE_TAG '__b' type_id=1 [3] VOLATILE '(anon)' type_id=2 [4] VAR 'b' type_id=3, linkage=global i.e. `VOLATILE -> TYPE_TAG -> INT` which doesn't meet the above requirement that type tags precede CVR modifiers. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D143967/new/ https://reviews.llvm.org/D143967 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
