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[bug#42227] BPF in linux-libre

From: John Soo
Subject: [bug#42227] BPF in linux-libre
Date: Sat, 11 Jul 2020 09:28:19 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Hi Mathieu,

> Hey John,
> I'll take more time to review patches 4 and 5. However, while trying
> some of the examples packaged by BCC, I have the following error:
> mathieu@meru:~/guix-master$ 
> /gnu/store/rv51f9n1w9i92m9qsg9k3ilsy3hyhjf3-bcc-0.15.0/share/bcc/tools/execsnoop
> Traceback (most recent call last):
>   File 
> "/gnu/store/rv51f9n1w9i92m9qsg9k3ilsy3hyhjf3-bcc-0.15.0/share/bcc/tools/execsnoop",
>  line 21, in <module>
>     from bcc import BPF
> ModuleNotFoundError: No module named 'bcc'
> I think an additional wrapping is necessary. Could you please have a
> look? I'm also removing help-guix, and opening a proper guix-patches
> ticket.

I wrapped the PYTHONPATH around the various provided python tools.
I also found a spare path that required patching.
I am not sure this fixes every tool but I did get a few to work now.

Thanks for attaching guix-patches.

I also added debugfs as a requirement for a bpf system.  To use it
%bpf-file-systems can be used in place of %base-file-systems in the
operating system definition.



Attachment: 0001-gnu-Add-debugfs-file-system.patch
Description: Text Data

Attachment: 0002-gnu-Add-bpf-file-systems.patch
Description: Text Data

Attachment: 0003-gnu-Add-bcc.patch
Description: Text Data

Attachment: 0004-gnu-Add-bpftrace.patch
Description: Text Data

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