linux-kernel - [tip:perf/core] ftrace: Add .kprobe.text section to whitelist for recordmcount.c

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Message-ID: <tip-9f087e7612115b7a201d4f3392a95ac7408948ab@git.kernel.org>
Date:	Wed, 18 May 2011 18:32:03 GMT
From:	tip-bot for Steven Rostedt <srostedt@...hat.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	masami.hiramatsu.pt@...achi.com, rostedt@...dmis.org,
	srostedt@...hat.com, jreiser@...wagon.com, tglx@...utronix.de
Subject: [tip:perf/core] ftrace: Add .kprobe.text section to whitelist for recordmcount.c

Commit-ID:  9f087e7612115b7a201d4f3392a95ac7408948ab
Gitweb:     http://git.kernel.org/tip/9f087e7612115b7a201d4f3392a95ac7408948ab
Author:     Steven Rostedt <srostedt@...hat.com>
AuthorDate: Wed, 6 Apr 2011 14:10:22 -0400
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Mon, 16 May 2011 14:42:15 -0400

ftrace: Add .kprobe.text section to whitelist for recordmcount.c

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@...wagon.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Link: http://lkml.kernel.org/r/20110421023737.743350547@goodmis.org
Signed-off-by: Steven Rostedt <rostedt@...dmis.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,
 );
 
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