linux-kernel - [tip:core/objtool] objtool: Enable stack metadata validation on 64-bit x86

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Message-ID: <tip-d4883d5d6b146fd65f762c462b2c6d4a327c7d50@git.kernel.org>
Date:	Mon, 29 Feb 2016 03:01:58 -0800
From:	tip-bot for Josh Poimboeuf <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mmarek@...e.cz, hpa@...or.com, bernd@...rovitsch.priv.at,
	peterz@...radead.org, torvalds@...ux-foundation.org,
	luto@...nel.org, jpoimboe@...hat.com, chris.j.arges@...onical.com,
	jslaby@...e.cz, tglx@...utronix.de, palves@...hat.com,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...nel.org, acme@...nel.org, bp@...en8.de, namhyung@...il.com
Subject: [tip:core/objtool] objtool: Enable stack metadata validation on
 64-bit x86

Commit-ID:  d4883d5d6b146fd65f762c462b2c6d4a327c7d50
Gitweb:     http://git.kernel.org/tip/d4883d5d6b146fd65f762c462b2c6d4a327c7d50
Author:     Josh Poimboeuf <jpoimboe@...hat.com>
AuthorDate: Sun, 28 Feb 2016 22:22:43 -0600
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 29 Feb 2016 08:35:13 +0100

objtool: Enable stack metadata validation on 64-bit x86

Set HAVE_STACK_VALIDATION to enable stack metadata validation for
x86_64.

Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Bernd Petrovitsch <bernd@...rovitsch.priv.at>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Chris J Arges <chris.j.arges@...onical.com>
Cc: Jiri Slaby <jslaby@...e.cz>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Michal Marek <mmarek@...e.cz>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Pedro Alves <palves@...hat.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: live-patching@...r.kernel.org
Link: http://lkml.kernel.org/r/cdaeb6914d00a070c0f455cd06989bf3f787a2f6.1456719558.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c46662f..adc5a6d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -155,6 +155,7 @@ config X86
 	select VIRT_TO_BUS
 	select X86_DEV_DMA_OPS			if X86_64
 	select X86_FEATURE_NAMES		if PROC_FS
+	select HAVE_STACK_VALIDATION		if X86_64
 
 config INSTRUCTION_DECODER
 	def_bool y