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

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Message-ID: <ab1c3803-179c-7882-2bba-9eeda5211ad1@isovalent.com>
Date:   Fri, 23 Apr 2021 11:59:44 +0100
From:   Quentin Monnet <quentin@...valent.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>
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Subject: Re: [PATCH bpf-next 1/2] bpf: Remove bpf_jit_enable=2 debugging mode

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).

Quentin