From: Kienan Stewart via lttng-dev <lttng-dev@lists.lttng.org>
To: "François Belias" <beliasossim@gmail.com>, lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] Undefined symbol error fix
Date: Thu, 11 Jul 2024 16:55:41 -0400 [thread overview]
Message-ID: <003921f8-df16-4573-ba6a-7ef8821f4863@efficios.com> (raw)
In-Reply-To: <CAHD10UjRBLgAWAAfgOLVgxv3zMYkedtWjquOdC60XTPDifEeJA@mail.gmail.com>
Hi François,
We don't support the forked version of LTTng modules that you are using
(https://github.com/tahini/lttng-modules)
The canonical upstream version available at
https://github.com/lttng/lttng-modules has tracepoints such as kvm_entry
and kvm_exit.
E.g.
https://github.com/lttng/lttng-modules/blob/06a1fc639b10b40c0ffc412f3fb663632e42dae6/include/instrumentation/events/arch/x86/kvm/trace.h#L20
thanks,
kienan
On 7/11/24 4:06 PM, François Belias via lttng-dev wrote:
> Hello,
>
> I am trying to access tracepoints from this website
> https://archive.eclipse.org/tracecompass.incubator/doc/org.eclipse.tracecompass.incubator.virtual.machine.analysis.doc.user/Virtual-Machine-Analysis-User-Documentation.html <https://archive.eclipse.org/tracecompass.incubator/doc/org.eclipse.tracecompass.incubator.virtual.machine.analysis.doc.user/Virtual-Machine-Analysis-User-Documentation.html> (kmv_entry, kmv_exit) for my analysis. I added the "addons" folder from the "addons_vm" branch of this repository: https://github.com/tahini/lttng-modules <https://github.com/tahini/lttng-modules> to the current version of lttng-module github repository. However, I am encountering these errors when compiling
> ERROR: modpost: "lttng_tracepoint_probe_register"
> [lttng-modules/src/addons/lttng-vmsync-guest.ko] undefined!
> ERROR: modpost: "lttng_tracepoint_probe_unregister"
> [Desktop/lttng-modules/src/addons/lttng-vmsync-guest.ko] undefined!
> ERROR: modpost: "lttng_tracepoint_probe_register"
> [Desktop/lttng-modules/src/addons/lttng-vmsync-host.ko] undefined!
> ERROR: modpost: "lttng_tracepoint_probe_unregister"
> [Desktop/lttng-modules/src/addons/lttng-vmsync-host.ko] undefined!
>
> I am not sure how to resolve this issue. Can someone please help me?
>
> Thanks.
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
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next prev parent reply other threads:[~2024-07-11 20:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-11 20:06 François Belias via lttng-dev
2024-07-11 20:55 ` Kienan Stewart via lttng-dev [this message]
[not found] ` <CAHD10Ui0JtFCWY9ND_VxdfYBiF=iOK-SJTfjwZQ6QyQgzLBZBg@mail.gmail.com>
2024-07-12 14:32 ` Kienan Stewart via lttng-dev
[not found] ` <CAHD10Uhv+Z2OeNEqShXjZDKLWERUwjqPzvu2NsSsQmpEQdF81w@mail.gmail.com>
2024-07-12 18:12 ` Kienan Stewart via lttng-dev
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