netdev - Re: [PATCH bpf-next 0/3] Add generic and raw BTF parsing APIs to libbpf

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Message-ID: <bc4f155d-afe0-9cda-b41b-282e948c15e9@iogearbox.net>
Date:   Mon, 3 Aug 2020 16:45:11 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Andrii Nakryiko <andriin@...com>, bpf@...r.kernel.org,
        netdev@...r.kernel.org, ast@...com
Cc:     andrii.nakryiko@...il.com, kernel-team@...com
Subject: Re: [PATCH bpf-next 0/3] Add generic and raw BTF parsing APIs to
 libbpf

On 8/2/20 3:32 AM, Andrii Nakryiko wrote:
> It's pretty common for applications to want to parse raw (binary) BTF data
> from file, as opposed to parsing it from ELF sections. It's also pretty common
> for tools to not care whether given file is ELF or raw BTF format. This patch
> series exposes internal raw BTF parsing API and adds generic variant of BTF
> parsing, which will efficiently determine the format of a given fail and will
> parse BTF appropriately.
> 
> Patches #2 and #3 removes re-implementations of such APIs from bpftool and
> resolve_btfids tools.
> 
> Andrii Nakryiko (3):
>    libbpf: add btf__parse_raw() and generic btf__parse() APIs
>    tools/bpftool: use libbpf's btf__parse() API for parsing BTF from file
>    tools/resolve_btfids: use libbpf's btf__parse() API
> 
>   tools/bpf/bpftool/btf.c             |  54 +------------
>   tools/bpf/resolve_btfids/.gitignore |   4 +
>   tools/bpf/resolve_btfids/main.c     |  58 +-------------
>   tools/lib/bpf/btf.c                 | 114 +++++++++++++++++++---------
>   tools/lib/bpf/btf.h                 |   5 +-
>   tools/lib/bpf/libbpf.map            |   2 +
>   6 files changed, 89 insertions(+), 148 deletions(-)
>   create mode 100644 tools/bpf/resolve_btfids/.gitignore
> 

Applied, thanks!