netdev - Re: [PATCH] bpftool: Allow to read btf as raw data

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Message-ID: <20191024105537.0c824bcb@cakuba.hsd1.ca.comcast.net>
Date:   Thu, 24 Oct 2019 10:55:37 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, Andrii Nakryiko <andriin@...com>,
        Yonghong Song <yhs@...com>, Martin KaFai Lau <kafai@...com>
Subject: Re: [PATCH] bpftool: Allow to read btf as raw data

On Thu, 24 Oct 2019 15:30:25 +0200, Jiri Olsa wrote:
> The bpftool interface stays the same, but now it's possible
> to run it over BTF raw data, like:
> 
>   $ bpftool btf dump file /sys/kernel/btf/vmlinux
>   [1] INT '(anon)' size=4 bits_offset=0 nr_bits=32 encoding=(none)
>   [2] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none)
>   [3] CONST '(anon)' type_id=2
> 
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---
> v3 changes:
>  - fix title
> 
> v2 changes:
>  - added is_btf_raw to find out which btf__parse_* function to call
>  - changed labels and error propagation in btf__parse_raw
>  - drop the err initialization, which is not needed under this change


Aw, this is v3? Looks like I replied to the older now, such confusion :)