From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 3/3] tracing: Add notrace to TRACE_EVENT implementation functions
Date: Tue, 16 Feb 2010 11:41:25 -0500 [thread overview]
Message-ID: <20100216164207.618736078@goodmis.org> (raw)
In-Reply-To: 20100216164122.891864374@goodmis.org
[-- Attachment #1: 0003-tracing-Add-notrace-to-TRACE_EVENT-implementation-fu.patch --]
[-- Type: text/plain, Size: 5657 bytes --]
From: Steven Rostedt <srostedt@redhat.com>
The functions used to implement the TRACE_EVENT macro show up in
function tracing. This is considered a distraction, and these should
not be displayed. For example:
<idle>-0 [000] 57.202149: task_of <-update_stats_wait_end
<idle>-0 [000] 57.202149: ftrace_raw_event_sched_stat_wait <-update_stats_wait_end
<idle>-0 [000] 57.202150: ftrace_raw_event_id_sched_stat_template <-ftrace_raw_event_sched_stat_wait
<idle>-0 [000] 57.202150: sched_stat_wait: comm=sshd pid=2735 delay=19207 [ns]
The "ftrace_raw_event_*" traces are just the utility functions used
by TRACE_EVENT tracepoints.
Cc: Thomas Gleixner <tglx@linutronix.de>
Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/trace/ftrace.h | 31 ++++++++++++++++++-------------
1 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index df65b99..09fd9af 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -199,7 +199,7 @@
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
-static enum print_line_t \
+static notrace enum print_line_t \
ftrace_raw_output_id_##call(int event_id, const char *name, \
struct trace_iterator *iter, int flags) \
{ \
@@ -232,7 +232,7 @@ ftrace_raw_output_id_##call(int event_id, const char *name, \
#undef DEFINE_EVENT
#define DEFINE_EVENT(template, name, proto, args) \
-static enum print_line_t \
+static notrace enum print_line_t \
ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \
{ \
return ftrace_raw_output_id_##template(event_##name.id, \
@@ -241,7 +241,7 @@ ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \
#undef DEFINE_EVENT_PRINT
#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
-static enum print_line_t \
+static notrace enum print_line_t \
ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
{ \
struct trace_seq *s = &iter->seq; \
@@ -307,7 +307,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
-static int \
+static int notrace \
ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
{ \
struct ftrace_raw_##call field; \
@@ -355,7 +355,7 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
-static inline int ftrace_get_offsets_##call( \
+static inline notrace int ftrace_get_offsets_##call( \
struct ftrace_data_offsets_##call *__data_offsets, proto) \
{ \
int __data_size = 0; \
@@ -402,12 +402,14 @@ static inline int ftrace_get_offsets_##call( \
\
static void ftrace_profile_##name(proto); \
\
-static int ftrace_profile_enable_##name(struct ftrace_event_call *unused)\
+static notrace int \
+ftrace_profile_enable_##name(struct ftrace_event_call *unused) \
{ \
return register_trace_##name(ftrace_profile_##name); \
} \
\
-static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
+static notrace void \
+ftrace_profile_disable_##name(struct ftrace_event_call *unused) \
{ \
unregister_trace_##name(ftrace_profile_##name); \
}
@@ -541,7 +543,8 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
\
-static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
+static notrace void \
+ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
proto) \
{ \
struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
@@ -578,17 +581,19 @@ static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
#undef DEFINE_EVENT
#define DEFINE_EVENT(template, call, proto, args) \
\
-static void ftrace_raw_event_##call(proto) \
+static notrace void ftrace_raw_event_##call(proto) \
{ \
ftrace_raw_event_id_##template(&event_##call, args); \
} \
\
-static int ftrace_raw_reg_event_##call(struct ftrace_event_call *unused)\
+static notrace int \
+ftrace_raw_reg_event_##call(struct ftrace_event_call *unused) \
{ \
return register_trace_##call(ftrace_raw_event_##call); \
} \
\
-static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\
+static notrace void \
+ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused) \
{ \
unregister_trace_##call(ftrace_raw_event_##call); \
} \
@@ -750,7 +755,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
-static void \
+static notrace void \
ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \
proto) \
{ \
@@ -820,7 +825,7 @@ end_recursion: \
#undef DEFINE_EVENT
#define DEFINE_EVENT(template, call, proto, args) \
-static void ftrace_profile_##call(proto) \
+static notrace void ftrace_profile_##call(proto) \
{ \
struct ftrace_event_call *event_call = &event_##call; \
\
--
1.6.5
next prev parent reply other threads:[~2010-02-16 16:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-16 16:41 [PATCH 0/3][GIT PULL][v2.6.34] tracing: updates Steven Rostedt
2010-02-16 16:41 ` [PATCH 1/3] tracing: Add correct/incorrect to sort keys for branch annotation output Steven Rostedt
2010-02-16 16:41 ` [PATCH 2/3] ftrace: Allow to remove a single function from function graph filter Steven Rostedt
2010-02-16 16:41 ` Steven Rostedt [this message]
2010-02-16 21:06 ` [PATCH 0/3][GIT PULL][v2.6.34] tracing: updates Ingo Molnar
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