Provided by: liblttng-ust-dev_2.10.1-1_amd64 
NAME
lttng-gen-tp - Generate LTTng-UST tracepoint provider code
SYNOPSIS
lttng-gen-tp [--verbose] [--output=FILE.c]
[--output=FILE.h] [--output=FILE.o] TEMPLATE
DESCRIPTION
The lttng-gen-tp tool simplifies the generation of LTTng-UST tracepoint provider files. It takes a simple
template file, TEMPLATE, and generates the necessary C code to use the defined tracepoints in your
application. See the Template file format section below for more information about the format of
TEMPLATE.
Currently, lttng-gen-tp can generate the .h, .c, and .o files associated with your tracepoint provider.
The generated .h file can be included directly in your application. You can let lttng-gen-tp generate the
.o file or compile the .c file yourself. See lttng-ust(3) for more information about compiling LTTng-UST
tracepoint providers.
By default, lttng-gen-tp generates the .h, .c, and .o files, their basename being the basename of
TEMPLATE. You can generate one or more specific file types with the --output option, repeated if needed.
Template file format
The template file, which usually has the .tp extension, contains a list of TRACEPOINT_EVENT() definitions
and other optional definition entries, like TRACEPOINT_LOGLEVEL(). See lttng-ust(3) for the complete list
of available definitions.
The TRACEPOINT_EVENT() definitions are written as you would write them in an LTTng-UST template provider
header file. C comments are supported (/* */ and //), as well as lines starting with #.
Note
The provider name (the first argument of TRACEPOINT_EVENT()) must be the same in all the
TRACEPOINT_EVENT() macros of TEMPLATE.
Here’s an example:
TRACEPOINT_EVENT(
// Tracepoint provider name
my_provider,
// Tracepoint/event name
my_event,
// Tracepoint arguments (input)
TP_ARGS(char *, text),
// Tracepoint/event fields (output)
TP_FIELDS(
ctf_string(message, text)
)
)
OPTIONS
-o, --output=FILE
Do not generate default files: generate FILE.
The extension of FILE determines what is generated, amongst .h, .c, and .o. This option can be used
more than one time to generate different file types.
-v, --verbose
Increase verbosity.
-h, --help
Show command help.
ENVIRONMENT VARIABLES
CC
C compiler to use. Default: cc, then gcc if cc is not found. This option is only relevant when
generating the .o file.
CFLAGS
Flags and options passed directly to the compiler ($CC). This option is only relevant when generating
the .o file.
EXIT STATUS
0
Success
Non-zero
Error
BUGS
If you encounter any issue or usability problem, please report it on the LTTng bug tracker
<https://bugs.lttng.org/projects/lttng-ust>.
RESOURCES
• 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: lttng-dev@lists.lttng.org • IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net
COPYRIGHTS
lttng-gen-tp is part of the LTTng-UST project.
lttng-gen-tp is distributed under the GNU General Public License, version 2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html>. See the COPYING
<https://github.com/lttng/lttng-ust/blob/master/COPYING> file for more details.
AUTHOR
lttng-gen-tp was originally written by Yannick Brosseau <mailto:yannick.brosseau@gmail.com>. It is currently maintained by Mathieu Desnoyers <mailto:mathieu.desnoyers@efficios.com>.
SEE ALSO
lttng-ust(3)