netdev - Re: [PATCH v2 bpf-next 11/12] bpftool/docs: add description of btf dump C option

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Date:   Fri, 24 May 2019 20:42:31 +0100
From:   Quentin Monnet <quentin.monnet@...ronome.com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     Andrii Nakryiko <andriin@...com>,
        Networking <netdev@...r.kernel.org>, bpf@...r.kernel.org,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH v2 bpf-next 11/12] bpftool/docs: add description of btf
 dump C option

2019-05-24 10:25 UTC-0700 ~ Andrii Nakryiko <andrii.nakryiko@...il.com>
> On Fri, May 24, 2019 at 2:14 AM Quentin Monnet
> <quentin.monnet@...ronome.com> wrote:
>>
>> 2019-05-23 13:42 UTC-0700 ~ Andrii Nakryiko <andriin@...com>
>>> Document optional **c** option for btf dump subcommand.
>>>
>>> Cc: Quentin Monnet <quentin.monnet@...ronome.com>
>>> Signed-off-by: Andrii Nakryiko <andriin@...com>
>>> ---
>>>  tools/bpf/bpftool/Documentation/bpftool-btf.rst | 7 ++++++-
>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/tools/bpf/bpftool/Documentation/bpftool-btf.rst b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
>>> index 2dbc1413fabd..1aec7dc039e9 100644
>>> --- a/tools/bpf/bpftool/Documentation/bpftool-btf.rst
>>> +++ b/tools/bpf/bpftool/Documentation/bpftool-btf.rst
>>> @@ -19,10 +19,11 @@ SYNOPSIS
>>>  BTF COMMANDS
>>>  =============
>>>
>>> -|    **bpftool** **btf dump** *BTF_SRC*
>>> +|    **bpftool** **btf dump** *BTF_SRC* [**format** *FORMAT*]
>>>  |    **bpftool** **btf help**
>>>  |
>>>  |    *BTF_SRC* := { **id** *BTF_ID* | **prog** *PROG* | **map** *MAP* [{**key** | **value** | **kv** | **all**}] | **file** *FILE* }
>>> +|       *FORMAT* := { **raw** | **c** }
>>
>> Nit: This line should use a tab for indent (Do not respin just for that,
>> though!).
> 
> Oh, I didn't notice that. My vim setup very aggressively refuses to
> insert tabs, so I had to literaly copy/paste pieces of tabulations :)
> Fixed it.

I can relate :). On my (vim) setup, I can usually hit Ctrl+V then <Tab>
to insert tabulations in that case.

> 
>>
>>>  |    *MAP* := { **id** *MAP_ID* | **pinned** *FILE* }
>>>  |    *PROG* := { **id** *PROG_ID* | **pinned** *FILE* | **tag** *PROG_TAG* }
>>>
>>> @@ -49,6 +50,10 @@ DESCRIPTION
>>>                    .BTF section with well-defined BTF binary format data,
>>>                    typically produced by clang or pahole.
>>>
>>> +                  **format** option can be used to override default (raw)
>>> +                  output format. Raw (**raw**) or C-syntax (**c**) output
>>> +                  formats are supported.
>>> +
>>
>> Other files use tabs here as well, but most of the description here
>> already uses spaces, so ok.
> 
> Yeah, thanks for pointing out, fixed everything to tabs + 2 spaces, as
> in other files (unclear why we have extra 2 spaces, but not going to
> change that).

Thanks!

> 
>>
>>>       **bpftool btf help**
>>>                 Print short help message.
>>>
>>>
>>