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Date: Wed, 10 Jun 2009 14:39:23 -0400 (EDT)
From: Steven Rostedt <rostedt@...dmis.org>
To: Ingo Molnar <mingo@...e.hu>
cc: Christoph Hellwig <hch@...radead.org>,
Frederic Weisbecker <fweisbec@...il.com>,
LKML <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Minchan Kim <minchan.kim@...il.com>,
Mel Gorman <mel@....ul.ie>, Rik van Riel <riel@...hat.com>,
Pekka Enberg <penberg@...helsinki.fi>,
Peter Zijlstra <peterz@...radead.org>,
Theodore Tso <tytso@....edu>,
Mathieu Desnoyers <compudj@...stal.dyndns.org>,
Lai Jiangshan <laijs@...fujitsu.com>,
Zhaolei <zhaolei@...fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
Jason Baron <jbaron@...hat.com>,
Jiaying Zhang <jiayingz@...gle.com>
Subject: [PATCH][GIT PULL] tracing: do not translate event helper macros in
print format
Ingo,
This looks like it changed more than it really did, I only moved the one
macro above another and added a few lines:
+#undef __print_symbolic
+#undef __get_dynamic_array
+#undef __get_str
+
Please pull the latest tip/tracing/ftrace-1 tree, which can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace.git
tip/tracing/ftrace-1
Steven Rostedt (1):
tracing: do not translate event helper macros in print format
----
include/trace/ftrace.h | 158 ++++++++++++++++++++++++-----------------------
1 files changed, 81 insertions(+), 77 deletions(-)
---------------------------
commit 6ff9a64d2aaa6eae396adc95e9c91c0cbfa6dbe4
Author: Steven Rostedt <srostedt@...hat.com>
Date: Wed Jun 10 14:28:34 2009 -0400
tracing: do not translate event helper macros in print format
By moving the macro that creates the print format code above the
defining of the event macro helpers (__get_str, __print_symbolic,
and __get_dynamic_array), we get a little cleaner print format.
Instead of:
(char *)((void *)REC + REC->__data_loc_name)
we get:
__get_str(name)
Instead of:
({ static const struct trace_print_flags symbols[] = { { HI_SOFTIRQ, "HI" }, {
we get:
__print_symbolic(REC->vec, { HI_SOFTIRQ, "HI" }, {
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 40ede4d..1867553 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -81,6 +81,87 @@
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/*
+ * Setup the showing format of trace point.
+ *
+ * int
+ * ftrace_format_##call(struct trace_seq *s)
+ * {
+ * struct ftrace_raw_##call field;
+ * int ret;
+ *
+ * ret = trace_seq_printf(s, #type " " #item ";"
+ * " offset:%u; size:%u;\n",
+ * offsetof(struct ftrace_raw_##call, item),
+ * sizeof(field.type));
+ *
+ * }
+ */
+
+#undef TP_STRUCT__entry
+#define TP_STRUCT__entry(args...) args
+
+#undef __field
+#define __field(type, item) \
+ ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), item), \
+ (unsigned int)sizeof(field.item)); \
+ if (!ret) \
+ return 0;
+
+#undef __array
+#define __array(type, item, len) \
+ ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), item), \
+ (unsigned int)sizeof(field.item)); \
+ if (!ret) \
+ return 0;
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), \
+ __data_loc_##item), \
+ (unsigned int)sizeof(field.__data_loc_##item)); \
+ if (!ret) \
+ return 0;
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, -1)
+
+#undef __entry
+#define __entry REC
+
+#undef __print_symbolic
+#undef __get_dynamic_array
+#undef __get_str
+
+#undef TP_printk
+#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
+
+#undef TP_fast_assign
+#define TP_fast_assign(args...) args
+
+#undef TRACE_EVENT
+#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
+static int \
+ftrace_format_##call(struct trace_seq *s) \
+{ \
+ struct ftrace_raw_##call field __attribute__((unused)); \
+ int ret = 0; \
+ \
+ tstruct; \
+ \
+ trace_seq_printf(s, "\nprint fmt: " print); \
+ \
+ return ret; \
+}
+
+#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+
+/*
* Stage 3 of the trace events.
*
* Override the macros in <trace/trace_events.h> to include the following:
@@ -179,83 +260,6 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-/*
- * Setup the showing format of trace point.
- *
- * int
- * ftrace_format_##call(struct trace_seq *s)
- * {
- * struct ftrace_raw_##call field;
- * int ret;
- *
- * ret = trace_seq_printf(s, #type " " #item ";"
- * " offset:%u; size:%u;\n",
- * offsetof(struct ftrace_raw_##call, item),
- * sizeof(field.type));
- *
- * }
- */
-
-#undef TP_STRUCT__entry
-#define TP_STRUCT__entry(args...) args
-
-#undef __field
-#define __field(type, item) \
- ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%u;\tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
- if (!ret) \
- return 0;
-
-#undef __array
-#define __array(type, item, len) \
- ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
- "offset:%u;\tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
- if (!ret) \
- return 0;
-
-#undef __dynamic_array
-#define __dynamic_array(type, item, len) \
- ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t" \
- "offset:%u;\tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), \
- __data_loc_##item), \
- (unsigned int)sizeof(field.__data_loc_##item)); \
- if (!ret) \
- return 0;
-
-#undef __string
-#define __string(item, src) __dynamic_array(char, item, -1)
-
-#undef __entry
-#define __entry REC
-
-#undef TP_printk
-#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
-
-#undef TP_fast_assign
-#define TP_fast_assign(args...) args
-
-#undef TRACE_EVENT
-#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
-static int \
-ftrace_format_##call(struct trace_seq *s) \
-{ \
- struct ftrace_raw_##call field __attribute__((unused)); \
- int ret = 0; \
- \
- tstruct; \
- \
- trace_seq_printf(s, "\nprint fmt: " print); \
- \
- return ret; \
-}
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-
#undef __field
#define __field(type, item) \
ret = trace_define_field(event_call, #type, #item, \
--
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