linux-kernel - Re: [PATCH bpf-next 1/2] bpf: Remove bpf_jit

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Message-ID: <90e2da42-6924-4246-f2f6-cfb2778cd804@csgroup.eu>
Date:   Fri, 23 Apr 2021 13:29:59 +0200
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Quentin Monnet <quentin@...valent.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Ian Rogers <irogers@...gle.com>, Song Liu <songliubraving@...com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
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        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH bpf-next 1/2] bpf: Remove bpf_jit_enable=2 debugging mode



Le 23/04/2021 à 12:59, Quentin Monnet a écrit :
> 2021-04-23 12:46 UTC+0200 ~ Christophe Leroy <christophe.leroy@...roup.eu>
>>
>>
>> Le 23/04/2021 à 12:26, Quentin Monnet a écrit :
>>> 2021-04-23 09:19 UTC+0200 ~ Christophe Leroy
>>> <christophe.leroy@...roup.eu>
>>>
>>> [...]
>>>
>>>> I finally managed to cross compile bpftool with libbpf, libopcodes,
>>>> readline, ncurses, libcap, libz and all needed stuff. Was not easy but I
>>>> made it.
>>>
>>> Libcap is optional and bpftool does not use readline or ncurses. May I
>>> ask how you tried to build it?
>>
>> cd tools/bpf/
>>
>> make ARCH=powerpc CROSS_COMPILE=ppc-linux-
> 
> Ok, you could try running directly from tools/bpf/bpftool/ next time
> instead.
> 
> Readline at least is for a different tool under tools/bpf/, bpf_dbg (But
> I'm still not sure where that ncurses requirement was pulled from). The
> requirements for specific kernel options probably came from yet another
> tool (runqslower, I think).
> 

ncurses (or termcap) is required by readline

Christophe