From: Steven Rostedt <rostedt@goodmis.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Christoph Hellwig <hch@infradead.org>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Gregory Haskins <ghaskins@novell.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Thomas Gleixner <tglx@linutronix.de>,
Tim Bird <tim.bird@am.sony.com>, Sam Ravnborg <sam@ravnborg.org>,
"Frank Ch. Eigler" <fche@redhat.com>,
Jan Kiszka <jan.kiszka@siemens.com>,
John Stultz <johnstul@us.ibm.com>,
Steven Rostedt <srostedt@redhat.com>
Subject: [RFC PATCH 02/23 -v4] Annotate core code that should not be traced
Date: Mon, 21 Jan 2008 10:22:33 -0500 [thread overview]
Message-ID: <20080121152351.202275460@goodmis.org> (raw)
In-Reply-To: 20080121152231.579118762@goodmis.org
[-- Attachment #1: mcount-annotate-generic-code.patch --]
[-- Type: text/plain, Size: 919 bytes --]
Mark with "notrace" functions in core code that should not be
traced. The "notrace" attribute will prevent gcc from adding
a call to mcount on the annotated funtions.
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
lib/smp_processor_id.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-mcount.git/lib/smp_processor_id.c
===================================================================
--- linux-mcount.git.orig/lib/smp_processor_id.c 2008-01-17 20:33:16.000000000 -0500
+++ linux-mcount.git/lib/smp_processor_id.c 2008-01-17 20:33:31.000000000 -0500
@@ -7,7 +7,7 @@
#include <linux/kallsyms.h>
#include <linux/sched.h>
-unsigned int debug_smp_processor_id(void)
+notrace unsigned int debug_smp_processor_id(void)
{
unsigned long preempt_count = preempt_count();
int this_cpu = raw_smp_processor_id();
--
next prev parent reply other threads:[~2008-01-21 15:25 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-21 15:22 [RFC PATCH 00/23 -v4] mcount and latency tracing utility -v4 Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 01/23 -v4] Add basic support for gcc profiler instrumentation Steven Rostedt
2008-01-21 15:22 ` Steven Rostedt [this message]
2008-01-21 15:22 ` [RFC PATCH 03/23 -v4] x86_64: notrace annotations Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 04/23 -v4] add notrace annotations to vsyscall Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 05/23 -v4] add notrace annotations for NMI routines Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 06/23 -v4] handle accurate time keeping over long delays Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 07/23 -v4] ppc clock accumulate fix Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 08/23 -v4] Fixup merge between xtime_cache and timkkeeping starvation fix Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 09/23 -v4] time keeping add cycle_raw for actual incrementation Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 10/23 -v4] initialize the clock source to jiffies clock Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 11/23 -v4] add get_monotonic_cycles Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 12/23 -v4] Use RCU algorithm for monotonic cycles Steven Rostedt
2008-01-22 0:20 ` Nick Piggin
2008-01-22 0:49 ` Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 13/23 -v4] add notrace annotations to timing events Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 14/23 -v4] mcount based trace in the form of a header file library Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 15/23 -v4] Add context switch marker to sched.c Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 16/23 -v4] Make the task State char-string visible to all Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 17/23 -v4] Add tracing of context switches Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 18/23 -v4] Generic command line storage Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 19/23 -v4] trace generic call to schedule switch Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 20/23 -v4] Add marker in try_to_wake_up Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 21/23 -v4] mcount tracer for wakeup latency timings Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 22/23 -v4] Trace irq disabled critical timings Steven Rostedt
2008-01-21 15:22 ` [RFC PATCH 23/23 -v4] trace preempt off " Steven Rostedt
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