[verse]
#define *tracef*('fmt', ...)
-#define *vtracef*('fmt', 'va_list' ap)
+#define *vtracef*('fmt', 'ap')
-Link with `-llttng-ust`.
+Link with `-llttng-ust -llttng-ust-common`.
DESCRIPTION
-----------
-The LTTng-UST `tracef()` API allows you to trace your application with
-the help of a simple man:printf(3)-like macro. The 'fmt' argument is
-passed directly to the 'fmt' parameter of man:vasprintf(3), as well as
-the optional parameters following 'fmt'.
-
-To use `tracef()` or `vtracef()`, include `<lttng/tracef.h>` where you need it,
-and link your application with `liblttng-ust`. See the <<example,EXAMPLE>>
-section below for a complete usage example.
-
-Once your application is instrumented with `tracef()` or `vtracef()` calls and
-ready to run, use man:lttng-enable-event(1) to enable the
-`lttng_ust_tracef:*` event.
-
-The `tracef()` events contain a single field, named `msg`, which is the
-formatted string output.
-
-If you need to attach a specific log level to a `tracef()` call, use
-man:tracelog(3) instead.
-
-See also the <<limitations,LIMITATIONS>> section below for important
-limitations to consider when using `tracef()` or `vtracef()`.
-
-
-[[example]]
-EXAMPLE
--------
-Here's a usage example of `tracef()`:
-
--------------------------------------------------------------------
-#include <stdlib.h>
-#include <lttng/tracef.h>
-
-int main(void)
-{
- int i;
-
- for (i = 0; i < 25; i++) {
- tracef("my message: %s, this integer: %d", "a message", i);
- }
-
- return EXIT_SUCCESS;
-}
--------------------------------------------------------------------
-
-This C source file, saved as `app.c`, can be compiled into a program
-like this:
-
-[role="term"]
-----
-$ cc -o app app.c -llttng-ust
-----
-
-You can create an LTTng tracing session, enable the `tracef()` events,
-and start the created tracing session like this:
-
-[role="term"]
-----
-$ lttng create my-session
-$ lttng enable-event --userspace 'lttng_ust_tracef:*'
-$ lttng start
-----
-
-Next, start the program to be traced:
-
-[role="term"]
-----
-$ ./app
-----
-
-Finally, stop the tracing session, and inspect the recorded events:
-
-[role="term"]
-----
-$ lttng stop
-$ lttng view
-----
-
-
-[[limitations]]
-LIMITATIONS
------------
-:macro-name: tracef
-
-include::tracef-tracelog-limitations.txt[]
+The `tracef()` and `vtracef()` macros are part of version{nbsp}0 of the
+LTTng-UST API (see the ``Compatibility with previous APIs'' section of
+man:lttng-ust(3)).
+Prefer using man:lttng_ust_tracef(3) and man:lttng_ust_vtracef(3) which
+are part of version{nbsp}1 of the API and have the `lttng_ust_`
+namespace.
include::common-footer.txt[]
SEE ALSO
--------
-man:tracelog(3),
-man:lttng-ust(3),
-man:lttng(1),
-man:printf(3)
+man:lttng_ust_tracef(3),
+man:lttng_ust_vtracef(3)