Oh my bad !
You just have to choose modify the lines of the tutorial (rcu).
I chose userspace-rcu-0.12.2.tar.bz2<https://lttng.org/files/urcu/userspace-rcu-0.12.2.tar.bz2> and it installed well.
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De : MONTET Julien
Envoyé : lundi 29 mars 2021 11:43
À : lttng-dev@lists.lttng.org <lttng-dev@lists.lttng.org>
Objet : LTTng 32 bits : Cannot find liburcu-bp 0.11 or newer

Hi everyone,

I successfully installed and used LTTng on x86 and x64 (kernel event, userspace, and other tools like TraceCompass).

Now, I am looking for a way to use LTTng on other processors (arm32, ...).

I tried to follow the tutorial and, to be honest, I am quite not lost on step 2. (libuuid, popt, libxml2)
https://lttng.org/docs/v2.12/#doc-instrumenting-32-bit-app-on-64-bit-system

My current issue is on the step 3.
During the installation (./configure), I have the following error :
error: Cannot find liburcu-bp 0.11 or newer. Use LDFLAGS=-Ldir to specify its location.

This file - liburcu - is in /usr/local/lib32 : Ubuntu Pastebin<https://paste.ubuntu.com/p/b67Bxf6cfB/>

This topic was started a long time ago here :
https://lists.lttng.org/pipermail/lttng-dev/2013-February/019641.html

Would you mind helping me ?