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tracelog(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | BUGS | RESOURCES | COPYRIGHTS | THANKS | AUTHORS | SEE ALSO | COLOPHON 

TRACELOG(3)                    LTTng Manual                   TRACELOG(3)

NAME         top

       tracelog - LTTng-UST printf(3)-like interface with a log level

SYNOPSIS         top

       #include <lttng/tracelog.h>

       #define tracelog(level, fmt, ...)

       Link with -llttng-ust -llttng-ust-common.

DESCRIPTION         top

       The tracelog() macro is part of version 0 of the LTTng-UST API
       (see the “Compatibility with previous APIs” section of
       lttng-ust(3)).

       Prefer using lttng_ust_tracelog(3) which is part of version 1 of
       the API and has the lttng_ust_ namespace.

BUGS         top

       If you encounter any issue or usability problem, please report it
       on the LTTng bug tracker <https://bugs.lttng.org/projects/lttng-
       ust>.

RESOURCES         top

       •   LTTng project website <http://lttng.org>

       •   LTTng documentation <http://lttng.org/docs>

       •   Git repositories <http://git.lttng.org>

       •   GitHub organization <http://github.com/lttng>

       •   Continuous integration <http://ci.lttng.org/>

       •   Mailing list <http://lists.lttng.org> for support and
           development: [email protected]

       •   IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net

COPYRIGHTS         top

       This macro is part of the LTTng-UST project.

       This macro is distributed under the GNU Lesser General Public
       License, version 2.1 <http://www.gnu.org/licenses/old-
       licenses/lgpl-2.1.en.html>. See the COPYING
       <https://github.com/lttng/lttng-ust/blob/v2.14/COPYING> file for
       more details.

THANKS         top

       Thanks to Ericsson for funding this work, providing real-life use
       cases, and testing.

       Special thanks to Michel Dagenais and the DORSAL laboratory
       <http://www.dorsal.polymtl.ca/> at École Polytechnique de Montréal
       for the LTTng journey.

AUTHORS         top

       LTTng-UST was originally written by Mathieu Desnoyers, with
       additional contributions from various other people. It is
       currently maintained by Mathieu Desnoyers
       <mailto:[email protected]>.

SEE ALSO         top

       lttng_ust_tracelog(3), lttng_ust_vtracelog(3)

COLOPHON         top

       This page is part of the LTTng-UST (LTTng Userspace Tracer)
       project.  Information about the project can be found at 
       ⟨http://lttng.org/⟩.  It is not known how to report bugs for this
       man page; if you know, please send a mail to [email protected].
       This page was obtained from the tarball fetched from
       ⟨https://lttng.org/files/lttng-ust/⟩ on 2025-08-11.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for the
       page, or you have corrections or improvements to the information
       in this COLOPHON (which is not part of the original manual page),
       send a mail to [email protected]

LTTng 2.14.0-pre                06/07/2024                    TRACELOG(3)

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