tools lib traceevent: Add page_size field to pevent

The page size of traced system can be different than current system's
because the recorded data file might be analyzed in a different machine.
In this case we should use original page size of traced system when
accessing the data file, so this information needs to be saved.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1370323231-14022-6-git-send-email-namhyung@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/lib/traceevent/event-parse.h

@@ -400,6 +400,7 @@ struct pevent {
 
 	int cpus;
 	int long_size;
+	int page_size;
 
 	struct cmdline *cmdlines;
 	struct cmdline_list *cmdlist;
@@ -621,6 +622,16 @@ static inline void pevent_set_long_size(struct pevent *pevent, int long_size)
 	pevent->long_size = long_size;
 }
 
+static inline int pevent_get_page_size(struct pevent *pevent)
+{
+	return pevent->page_size;
+}
+
+static inline void pevent_set_page_size(struct pevent *pevent, int _page_size)
+{
+	pevent->page_size = _page_size;
+}
+
 static inline int pevent_is_file_bigendian(struct pevent *pevent)
 {
 	return pevent->file_bigendian;