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From: Mathieu Othacehe <othacehe@gnu.org>
To: John Soo <jsoo1@asu.edu>
Cc: 42227-done@debbugs.gnu.org
Subject: bug#42227: BPF in linux-libre
Date: Fri, 31 Jul 2020 13:04:47 +0200	[thread overview]
Message-ID: <87r1ss0wts.fsf@gnu.org> (raw)
In-Reply-To: <87v9i48lxw.fsf@asu.edu> (John Soo's message of "Thu, 30 Jul 2020 19:20:27 -0700")


Hey,

> That seems ok. I did find a few questions about debugfs on old irc logs
> and mailing lists.  My only concern again is that I would prefer to opt
> in to such a thing.  debugfs is much simpler than the bpf kernel flags
> though, so maybe it will be ok to remove in the future.

Yeah, but I saw that Ubuntu for instance is enabling it by default, so I
guess it could help to have the same behaviour in Guix System. Added it
with: 6bb07e91e1ab9367f636a3a5e9d52a9e0772aa89.

> But I cannot see anything guix does differently that would cause it to
> fail. My only feeling is perhaps our configure flags for binutils might
> be causing the issue.
>
> As is, however, bpftrace does work even with out HAVE_BFD_DISASM and I
> even used it to debug a few processes recently.

Gave it another try and I think if we could get "binutils" to produce a
dynamic version of libbfd.a, that would make the trick. Anyway, let's
proceed without BFD support for now. Pushed bpftrace as
c55acb073248392b1387017378f36a1d378fa7c4.

Closing the serie, thank you!

Mathieu




      reply	other threads:[~2020-07-31 11:06 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-14  3:21 BPF in linux-libre John Soo
2020-06-14  9:23 ` Mathieu Othacehe
2020-06-14 15:11   ` John Soo
2020-06-17 10:16     ` Mathieu Othacehe
2020-06-17 13:42       ` John Soo
2020-06-21 15:32       ` John Soo
2020-06-26 10:50         ` Mathieu Othacehe
2020-06-28 20:24           ` John Soo
2020-07-01  5:40           ` John Soo
2020-07-03 16:01           ` John Soo
2020-07-05  8:18             ` Mathieu Othacehe
2020-07-05  8:20             ` Mathieu Othacehe
2020-07-06  0:44               ` John Soo
2020-07-06 13:26                 ` [bug#42227] " Mathieu Othacehe
2020-07-11 16:28                   ` John Soo
2020-07-30 18:48                     ` Mathieu Othacehe
2020-07-31  2:20                       ` John Soo
2020-07-31 11:04                         ` Mathieu Othacehe [this message]

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