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From: Sowmini Varadhan <sowmini05@gmail.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: "xdp-newbies@vger.kernel.org" <xdp-newbies@vger.kernel.org>
Subject: Re: building eBPF
Date: Sat, 25 Apr 2020 12:34:58 -0400	[thread overview]
Message-ID: <20200425163458.GB455@gmail.com> (raw)
In-Reply-To: <20200425145619.4405a50d@carbon>

On (04/25/20 14:56), Jesper Dangaard Brouer wrote:
> 
> The kernel's samples/bpf/ should still builds with LLVM-9 (and lower).
> Follow instructions in the README.rst file[1].
> 
> There are pre-build Debian and Ubuntu packages for LLVM-10 here:
>  https://apt.llvm.org/

thanks that helped me install llvm-10

However, after all my adventures, I  end up with
# ls /usr/bin/llc*
/usr/bin/llc  /usr/bin/llc-10  /usr/bin/llc-5.0  /usr/bin/llc-6.0  /usr/bin/llc-7
and the default points at 6.0 so I had to go and tweak Makefile
to use clang-10 and llc-10

After that, samples builds and runs (thanks for that hint!).
But not selftests.  However, samples is good enough for my experiments,
for now.

> I suggest you start with the XDP-tutorial[2], it (still) works with older
> LLVM versions: [2] https://github.com/xdp-project/xdp-tutorial

will do.  

--Sowmini

  parent reply	other threads:[~2020-04-25 16:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200425122225.GA455@gmail.com>
2020-04-25 12:56 ` building eBPF Jesper Dangaard Brouer
2020-04-25 16:16   ` David Ahern
2020-04-25 16:34   ` Sowmini Varadhan [this message]
2020-04-27 10:46     ` Toke Høiland-Jørgensen
2020-04-27  0:20   ` Sowmini Varadhan
2020-04-27 10:03     ` Jesper Dangaard Brouer
2020-04-27 10:49       ` Sowmini Varadhan
2020-04-27 12:08         ` Daniel Borkmann

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