linux-kernel - [tip:x86/cleanups] x86, dumpstack: Use frame pointer during stack trace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 10 Mar 2011 22:26:07 GMT
From:	tip-bot for Namhyung Kim <namhyung@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	fweisbec@...il.com, tglx@...utronix.de, namhyung@...il.com
Subject: [tip:x86/cleanups] x86, dumpstack: Use frame pointer during stack trace

Commit-ID:  2f8058ae197236f9d5641850ce27f67d8f3e0b39
Gitweb:     http://git.kernel.org/tip/2f8058ae197236f9d5641850ce27f67d8f3e0b39
Author:     Namhyung Kim <namhyung@...il.com>
AuthorDate: Tue, 8 Mar 2011 20:44:22 +0900
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 10 Mar 2011 23:20:30 +0100

x86, dumpstack: Use frame pointer during stack trace

If CONFIG_FRAME_POINTER is set then use the frame pointer for the
stack backtrace rather than scanning whole stack blindly.

Signed-off-by: Namhyung Kim <namhyung@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
LKML-Reference: <1299584662-24421-4-git-send-email-namhyung@...il.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/kernel/dumpstack.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 38b74a5e..56db27d 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -170,7 +170,11 @@ static const struct stacktrace_ops print_trace_ops = {
 	.warning_symbol		= print_trace_warning_symbol,
 	.stack			= print_trace_stack,
 	.address		= print_trace_address,
+#ifdef CONFIG_FRAME_POINTER
+	.walk_stack		= walk_context_stack_bp,
+#else
 	.walk_stack		= walk_context_stack,
+#endif
 };
 
 void
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/