netdev - Re: [PATCH 03/18] bpf: Add struct bpf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAPhsuW5JZeCjmkeu-YWVR0p4ZMUJzxeif+8Qgx2NtxWLOjpL7w@mail.gmail.com>
Date:   Wed, 26 Feb 2020 11:01:37 -0800
From:   Song Liu <song@...nel.org>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Andrii Nakryiko <andriin@...com>, Yonghong Song <yhs@...com>,
        Song Liu <songliubraving@...com>,
        Martin KaFai Lau <kafai@...com>,
        Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...hat.com>,
        Björn Töpel <bjorn.topel@...el.com>,
        John Fastabend <john.fastabend@...il.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [PATCH 03/18] bpf: Add struct bpf_ksym

On Wed, Feb 26, 2020 at 5:05 AM Jiri Olsa <jolsa@...nel.org> wrote:
>
> Adding 'struct bpf_ksym' object that will carry the
> kallsym information for bpf symbol. Adding the start
> and end address to begin with. It will be used by
> bpf_prog, bpf_trampoline, bpf_dispatcher.
>
> The symbol_start/symbol_end values were originally used
> to sort bpf_prog objects. For the address displayed in
> /proc/kallsyms we are using prog->bpf_func.
>
> I'm using the bpf_func for program symbol start instead
> of the symbol_start, because it makes no difference for
> sorting bpf_prog objects and we can use it directly as
> an address for display it in /proc/kallsyms.
>
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Acked-by: Song Liu <songliubraving@...com>