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From:   Tal Lossos <tallossos@gmail.com>
Date:   Mon, 25 Oct 2021 15:05:48 +0300
Message-ID: <CAO15rP=JzzanBC7Hj=9pshpMeWGJVpbt0wCiZfP8HwBaEbcFMw@mail.gmail.com>
Subject: Question regarding "BPF CO-RE reference guide" blog post
To:     bpf <bpf@vger.kernel.org>
Cc:     andrii@kernel.org, assaf.shab@gmail.com
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X-Mailing-List: bpf@vger.kernel.org

Hello!
After reading Andrii's new blog post regarding BPF CO-RE, which was
really lovely and well written, I came up with a small question:
When you gave the example for BPF_CORE_READ, you've accessed the
executable pointer under linux_binfmt struct.
Is it a mistake with linux_binprm struct? or maybe I'm missing something.

Another thing, maybe you could add a little explanation about how
libbpf validates the structs offsets with the help of BTF? It's a key
part of CO-RE so it would be nice to have a little deep-dive in the
blog post about it :)

Thanks.