Re: [PATCH bpf-next 2/6] libbpf: Collect static vs global info about functions

Toke Høiland-Jørgensen
2020-01-08T10:25:08Z

Alexei Starovoitov <ast@kernel.org> writes:

> Collect static vs global information about BPF functions from ELF file and
> improve BTF with this additional info if llvm is too old and doesn't emit it on
> its own.

Has the support for this actually landed in LLVM yet? I tried grep'ing
in the commit log and couldn't find anything...

[...]
> @@ -313,6 +321,7 @@ struct bpf_object {
> bool loaded;
> bool has_pseudo_calls;
> bool relaxed_core_relocs;
> + bool llvm_emits_func_linkage;

Nit: s/llvm/compiler/? Presumably GCC will also support this at some
point?

-Toke