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>,
"H. Peter Anvin" <hpa@zytor.com>,
John Reiser <jreiser@bitwagon.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Subject: [RFC][PATCH 03/11] ftrace: Add .kprobe.text section to whitelist for recordmcount.c
Date: Wed, 20 Apr 2011 22:28:28 -0400 [thread overview]
Message-ID: <20110421023737.743350547@goodmis.org> (raw)
In-Reply-To: 20110421022825.535486725@goodmis.org
[-- Attachment #1: 0003-ftrace-Add-.kprobe.text-section-to-whitelist-for-rec.patch --]
[-- Type: text/plain, Size: 1251 bytes --]
From: Steven Rostedt <srostedt@redhat.com>
The .kprobe.text section is safe to modify mcount to nop and tracing.
Add it to the whitelist in recordmcount.c and recordmcount.pl.
Cc: John Reiser <jreiser@bitwagon.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
scripts/recordmcount.c | 1 +
scripts/recordmcount.pl | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 4ebd839..37c5965 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -211,6 +211,7 @@ is_mcounted_section_name(char const *const txtname)
strcmp(".sched.text", txtname) == 0 ||
strcmp(".spinlock.text", txtname) == 0 ||
strcmp(".irqentry.text", txtname) == 0 ||
+ strcmp(".kprobes.text", txtname) == 0 ||
strcmp(".text.unlikely", txtname) == 0;
}
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 4be0dee..a871cd4 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -134,6 +134,7 @@ my %text_sections = (
".sched.text" => 1,
".spinlock.text" => 1,
".irqentry.text" => 1,
+ ".kprobes.text" => 1,
".text.unlikely" => 1,
);
--
1.7.2.3
next prev parent reply other threads:[~2011-04-21 2:39 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 2:28 [RFC][PATCH 00/11] ftrace/recordmcount: Remove useless mcount calls not being traced Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 01/11] ftrace/trivial: Clean up recordmcount.c to use Linux style comparisons Steven Rostedt
2011-04-21 8:46 ` Alan Cox
2011-04-21 11:36 ` Steven Rostedt
2011-04-21 12:28 ` Steven Rostedt
2011-04-22 15:09 ` John Reiser
2011-04-22 15:52 ` Thiago Farina
2011-04-22 16:05 ` Steven Rostedt
2011-04-26 18:52 ` Thiago Farina
2011-04-26 19:09 ` Steven Rostedt
2011-04-22 16:13 ` Steven Rostedt
2011-04-22 17:40 ` John Reiser
2011-04-22 17:56 ` H. Peter Anvin
2011-05-18 18:31 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:04 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 02/11] ftrace/trivial: Clean up record mcount to use Linux switch style Steven Rostedt
2011-05-18 18:31 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:04 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` Steven Rostedt [this message]
2011-05-18 18:32 ` [tip:perf/core] ftrace: Add .kprobe.text section to whitelist for recordmcount.c tip-bot for Steven Rostedt
2011-06-16 14:05 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 04/11] ftrace/recordmcount: Modify only executable sections Steven Rostedt
2011-05-18 18:32 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:05 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 05/11] ftrace/recordmcount: Make ignored mcount calls into nops at compile time Steven Rostedt
2011-05-18 18:32 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:05 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 06/11] ftrace/recordmcount: Add warning logic to warn on mcount not recorded Steven Rostedt
2011-05-18 18:33 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:06 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 07/11] kbuild/recordmcount: Add RECORDMCOUNT_WARN to warn about mcount callers Steven Rostedt
2011-04-21 2:40 ` Steven Rostedt
2011-04-21 20:40 ` Michal Marek
2011-04-26 19:08 ` Steven Rostedt
2011-05-18 18:33 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:06 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 08/11] ftrace: Avoid recording mcount on .init sections directly Steven Rostedt
2011-05-18 18:34 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:07 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 09/11] ftrace/x86: Do not trace .discard.text section Steven Rostedt
2011-05-18 18:34 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:07 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 10/11] ftrace/recordmcount: Remove duplicate code to find mcount symbol Steven Rostedt
2011-05-18 18:34 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:07 ` tip-bot for Steven Rostedt
2011-04-21 2:28 ` [RFC][PATCH 11/11] ftrace/recordmcount: Add helper function get_sym_str_and_relp() Steven Rostedt
2011-05-18 18:35 ` [tip:perf/core] " tip-bot for Steven Rostedt
2011-06-16 14:08 ` tip-bot for Steven Rostedt
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