Re: [PATCH 3/3] tracing: introduce a trace_data_offset struct to store array size

From: Steven Rostedt
Date: Mon Mar 03 2014 - 15:59:52 EST


On Mon, 3 Mar 2014 15:48:26 -0500
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> without patch:
>
> pst2pdf-3506 [000] 120.700910: sched_process_exec: filename=/usr/bin/pst2pdf pid=3506 old_pid=3506
>
>
> With patch:
>
> pstopnm-4432 [001] 1490.246765: sched_process_exec: filename= pid=4432 old_pid=4432

Now, after applying the following patch to your patch, I was able to
get this again:

pst2pdf-3512 [000] 99.693582: sched_process_exec: filename=/usr/bin/pst2pdf pid=3512 old_pid=3512


-- Steve

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 67e4122..2c6d1b0 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -124,8 +124,13 @@ struct trace_event {
};

struct trace_array_offset {
+#ifdef __BIG_ENDIAN
+ u16 length;
+ u16 offset;
+#else
u16 offset;
u16 length;
+#endif
};

extern int register_ftrace_event(struct trace_event *event);
--
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