linux-kernel - [PATCH 1/2] tracing/events: add missing type info of dynamic arrays

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Message-ID: <4A5E962E.9020900@cn.fujitsu.com>
Date:	Thu, 16 Jul 2009 10:53:34 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Johannes Berg <johannes@...solutions.net>,
	LKML <linux-kernel@...r.kernel.org>,
	Lai Jiangshan <laijs@...fujitsu.com>
Subject: [PATCH 1/2] tracing/events: add missing type info of dynamic arrays

From: Lai Jiangshan <laijs@...fujitsu.com>

The format file doesn't contain enough information for
__dynamic_array/__string. The type name is missing.

Before:
  # cat format:
  name: irq_handler_entry
  ...
          field:__data_loc name;  offset:16;      size:2;

After:
  # cat format:
  name: irq_handler_entry
  ...
          field:__data_loc char[] name;  offset:16;      size:2;

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
Signed-off-by: Li Zefan <lizf@...fujitsu.com>
---
 include/trace/ftrace.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 1867553..cc78943 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -120,7 +120,7 @@
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				       \
-	ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t"	       \
+	ret = trace_seq_printf(s, "\tfield:__data_loc " #type "[] " #item ";\t"\
 			       "offset:%u;\tsize:%u;\n",		       \
 			       (unsigned int)offsetof(typeof(field),	       \
 					__data_loc_##item),		       \
@@ -279,7 +279,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags)	\
 
 #undef __dynamic_array
 #define __dynamic_array(type, item, len)				       \
-	ret = trace_define_field(event_call, "__data_loc" "[" #type "]", #item,\
+	ret = trace_define_field(event_call, "__data_loc " #type "[]", #item,  \
 				offsetof(typeof(field), __data_loc_##item),    \
 				 sizeof(field.__data_loc_##item), 0);
 
-- 1.6.3 
--
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