[28/73] tools lib traceevent: Man page for page size APIs
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Message ID 20190517193611.4974-29-acme@kernel.org
State Accepted
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  • Untitled series #119075
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Commit Message

Arnaldo Carvalho de Melo May 17, 2019, 7:35 p.m. UTC
From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Create man pages for libtraceevent APIs:


Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/linux-trace-devel/20190503091119.23399-9-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190510200107.218173559@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 .../Documentation/libtraceevent-page_size.txt | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-page_size.txt

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diff --git a/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt b/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt
new file mode 100644
index 000000000000..452c0cfa1822
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-page_size.txt
@@ -0,0 +1,82 @@ 
+tep_get_page_size, tep_set_page_size - Get / set the size of a memory page on
+the machine, where the trace is generated
+*#include <event-parse.h>*
+int *tep_get_page_size*(struct tep_handle pass:[*]_tep_);
+void *tep_set_page_size*(struct tep_handle pass:[*]_tep_, int _page_size_);
+The _tep_get_page_size()_ function returns the size of a memory page on
+the machine, where the trace is generated. The _tep_ argument is trace
+event parser context.
+The _tep_set_page_size()_ function stores in the _tep_ context the size of a
+memory page on the machine, where the trace is generated.
+The _tep_ argument is trace event parser context.
+The _page_size_ argument is the size of a memory page, in bytes.
+The _tep_get_page_size()_ function returns size of the memory page, in bytes.
+#include <unistd.h>
+#include <event-parse.h>
+struct tep_handle *tep = tep_alloc();
+	int page_size = getpagesize();
+	tep_set_page_size(tep, page_size);
+	printf("The page size for this machine is %d\n", tep_get_page_size(tep));
+	Header file to include in order to have access to the library APIs.
+	Linker switch to add when building a program that uses the library.
+_libtraceevent(3)_, _trace-cmd(1)_
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+libtraceevent is Free Software licensed under the GNU LGPL 2.1