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Date:   Wed, 08 Jan 2020 11:25:02 +0100
From:   Toke Høiland-Jørgensen <>
To:     Alexei Starovoitov <>,
Subject: Re: [PATCH bpf-next 2/6] libbpf: Collect static vs global info about functions

Alexei Starovoitov <> 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


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