linux-kernel - [PATCH 25/73] tools lib traceevent: Man page for get/set cpus APIs

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Message-Id: <20190517193611.4974-26-acme@kernel.org>
Date:   Fri, 17 May 2019 16:35:23 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Tzvetomir Stoyanov <tstoyanov@...are.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jiri Olsa <jolsa@...hat.com>,
        linux-trace-devel@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 25/73] tools lib traceevent: Man page for get/set cpus APIs

From: Tzvetomir Stoyanov <tstoyanov@...are.com>

Create man pages for libtraceevent APIs:

 tep_get_cpus(),
 tep_set_cpus()

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@...are.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: linux-trace-devel@...r.kernel.org
Link: http://lore.kernel.org/linux-trace-devel/20190503091119.23399-6-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190510200106.742948683@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 .../Documentation/libtraceevent-cpus.txt      | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-cpus.txt

diff --git a/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt
new file mode 100644
index 000000000000..5ad70e43b752
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt
@@ -0,0 +1,77 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_get_cpus, tep_set_cpus - Get / set the number of CPUs, which have a tracing
+buffer representing it. Note, the buffer may be empty.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_get_cpus*(struct tep_handle pass:[*]_tep_);
+void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_);
+--
+
+DESCRIPTION
+-----------
+The _tep_get_cpus()_ function gets the number of CPUs, which have a tracing
+buffer representing it. The _tep_ argument is trace event parser context.
+
+The _tep_set_cpus()_ function sets the number of CPUs, which have a tracing
+buffer representing it. The _tep_ argument is trace event parser context.
+The _cpu_ argument is the number of CPUs with tracing data.
+
+RETURN VALUE
+------------
+The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing
+data recorded.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	tep_set_cpus(tep, 5);
+...
+	printf("We have tracing data for %d CPUs", tep_get_cpus(tep));
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@...dmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@...il.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@...r.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-- 
2.20.1