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>,
John Reiser <jreiser@bitwagon.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Subject: [PATCH 04/15] ftrace: Add .kprobe.text section to whitelist for recordmcount.c
Date: Wed, 18 May 2011 12:08:13 -0400 [thread overview]
Message-ID: <20110518160906.874565914@goodmis.org> (raw)
In-Reply-To: 20110518160809.724215604@goodmis.org
[-- Attachment #1: 0004-ftrace-Add-.kprobe.text-section-to-whitelist-for-rec.patch --]
[-- Type: text/plain, Size: 1319 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>
Link: http://lkml.kernel.org/r/20110421023737.743350547@goodmis.org
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,
);
--
1.7.4.4
next prev parent reply other threads:[~2011-05-18 16:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 16:08 [PATCH 00/15] [GIT PULL] ftrace/recordmcount: cleanups and updates for recordmcount processing Steven Rostedt
2011-05-18 16:08 ` [PATCH 01/15] ftrace/kbuild: Add recordmcount files to force full build Steven Rostedt
2011-05-18 16:08 ` [PATCH 02/15] ftrace/trivial: Clean up recordmcount.c to use Linux style Steven Rostedt
2011-05-18 16:08 ` [PATCH 03/15] ftrace/trivial: Clean up record mcount to use Linux switch style Steven Rostedt
2011-05-18 16:08 ` Steven Rostedt [this message]
2011-05-18 16:08 ` [PATCH 05/15] ftrace/recordmcount: Modify only executable sections Steven Rostedt
2011-05-18 16:08 ` [PATCH 06/15] ftrace/recordmcount: Make ignored mcount calls into nops at compile Steven Rostedt
2011-05-18 16:08 ` [PATCH 07/15] ftrace/recordmcount: Add warning logic to warn on mcount not Steven Rostedt
2011-05-18 16:08 ` [PATCH 08/15] kbuild/recordmcount: Add RECORDMCOUNT_WARN to warn about mcount Steven Rostedt
2011-05-18 16:08 ` [PATCH 09/15] ftrace: Avoid recording mcount on .init sections directly Steven Rostedt
2011-05-18 16:08 ` [PATCH 10/15] ftrace/x86: Do not trace .discard.text section Steven Rostedt
2011-05-18 16:08 ` [PATCH 11/15] ftrace/recordmcount: Remove duplicate code to find mcount symbol Steven Rostedt
2011-05-18 16:08 ` [PATCH 12/15] ftrace/recordmcount: Add helper function get_sym_str_and_relp() Steven Rostedt
2011-05-18 16:08 ` [PATCH 13/15] ftrace/recordmcount: mcount address adjustment Steven Rostedt
2011-05-18 16:08 ` [PATCH 14/15] ftrace/x86: mcount offset calculation Steven Rostedt
2011-05-18 16:08 ` [PATCH 15/15] ftrace/s390: " Steven Rostedt
2011-05-18 16:28 ` [PATCH 00/15] [GIT PULL] ftrace/recordmcount: cleanups and updates for recordmcount processing Steven Rostedt
2011-05-18 18:13 ` Ingo Molnar
2011-05-18 18:52 ` Steven Rostedt
2011-05-18 18:02 ` Ingo Molnar
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