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>,
Arjan van de Ven <arjan@infradead.org>,
Steven Rostedt <srostedt@redhat.com>
Subject: [PATCH 03/23 -v8] Annotate core code that should not be traced
Date: Wed, 30 Jan 2008 16:04:00 -0500 [thread overview]
Message-ID: <20080130210525.219220248@goodmis.org> (raw)
In-Reply-To: 20080130210357.927754294@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 2008-01-30 14:35:51.000000000 -0500
+++ linux-mcount.git/lib/smp_processor_id.c 2008-01-30 14:45:50.000000000 -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:[~2008-01-30 21:08 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 21:03 [PATCH 00/23 -v8] mcount and latency tracing utility -v8 Steven Rostedt
2008-01-30 21:03 ` [PATCH 01/23 -v8] printk - dont wakeup klogd with interrupts disabled Steven Rostedt
2008-01-30 21:03 ` [PATCH 02/23 -v8] Add basic support for gcc profiler instrumentation Steven Rostedt
2008-01-30 21:04 ` Steven Rostedt [this message]
2008-01-30 21:04 ` [PATCH 04/23 -v8] x86_64: notrace annotations Steven Rostedt
2008-01-30 21:04 ` [PATCH 05/23 -v8] add notrace annotations to vsyscall Steven Rostedt
2008-01-30 21:04 ` [PATCH 06/23 -v8] handle accurate time keeping over long delays Steven Rostedt
2008-01-31 12:10 ` Mathieu Desnoyers
2008-01-31 17:24 ` John Stultz
2008-02-01 17:02 ` Mathieu Desnoyers
2008-02-02 7:11 ` Steven Rostedt
2008-02-02 16:30 ` Mathieu Desnoyers
2008-01-30 21:04 ` [PATCH 07/23 -v8] initialize the clock source to jiffies clock Steven Rostedt
2008-01-30 21:04 ` [PATCH 08/23 -v8] add get_monotonic_cycles Steven Rostedt
2008-01-30 21:04 ` [PATCH 09/23 -v8] add notrace annotations to timing events Steven Rostedt
2008-01-30 21:04 ` [PATCH 10/23 -v8] mcount tracer add preempt_enable/disable notrace macros Steven Rostedt
2008-01-30 21:04 ` [PATCH 11/23 -v8] mcount based trace in the form of a header file library Steven Rostedt
2008-01-30 21:04 ` [PATCH 12/23 -v8] Add context switch marker to sched.c Steven Rostedt
2008-01-30 21:04 ` [PATCH 13/23 -v8] Make the task State char-string visible to all Steven Rostedt
2008-01-30 21:04 ` [PATCH 14/23 -v8] Add tracing of context switches Steven Rostedt
2008-02-05 17:04 ` Tim Bird
2008-01-30 21:04 ` [PATCH 15/23 -v8] Generic command line storage Steven Rostedt
2008-01-30 21:04 ` [PATCH 16/23 -v8] trace generic call to schedule switch Steven Rostedt
2008-01-30 21:04 ` [PATCH 17/23 -v8] Add marker in try_to_wake_up Steven Rostedt
2008-01-30 21:04 ` [PATCH 18/23 -v8] mcount tracer for wakeup latency timings Steven Rostedt
2008-01-30 21:04 ` [PATCH 19/23 -v8] Trace irq disabled critical timings Steven Rostedt
2008-01-30 21:04 ` [PATCH 20/23 -v8] trace preempt off " Steven Rostedt
2008-01-30 21:04 ` [PATCH 21/23 -v8] Add markers to various events Steven Rostedt
2008-01-31 12:06 ` Mathieu Desnoyers
2008-02-02 7:00 ` Steven Rostedt
2008-02-02 14:14 ` Mathieu Desnoyers
2008-01-30 21:04 ` [PATCH 22/23 -v8] Add event tracer Steven Rostedt
2008-01-30 21:04 ` [PATCH 23/23 -v8] Critical latency timings histogram Steven Rostedt
2008-02-05 17:11 ` [PATCH 00/23 -v8] mcount and latency tracing utility -v8 Tim Bird
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