linux-kernel - [tip:x86/urgent] x86: Provide _sdata in the vmlinux.lds.S file

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Date:	Fri, 12 Jun 2009 07:31:56 GMT
From:	tip-bot for Catalin Marinas <catalin.marinas@....com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	catalin.marinas@....com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/urgent] x86: Provide _sdata in the vmlinux.lds.S file

Commit-ID:  1260866a271abc84274345580f3d613d3bceff87
Gitweb:     http://git.kernel.org/tip/1260866a271abc84274345580f3d613d3bceff87
Author:     Catalin Marinas <catalin.marinas@....com>
AuthorDate: Mon, 11 May 2009 13:22:00 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 12 Jun 2009 09:21:33 +0200

x86: Provide _sdata in the vmlinux.lds.S file

_sdata is a common symbol defined by many architectures and made
available to the kernel via asm-generic/sections.h. Kmemleak uses this
symbol when scanning the data sections.

[ Impact: add new global symbol ]

Signed-off-by: Catalin Marinas <catalin.marinas@....com>
LKML-Reference: <20090511122105.26556.96593.stgit@...117.cambridge.arm.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/x86/kernel/vmlinux.lds.S |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 4c85b2e..367e878 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -108,6 +108,8 @@ SECTIONS
 	/* Data */
 	. = ALIGN(PAGE_SIZE);
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
+		/* Start of data section */
+		_sdata = .;
 		DATA_DATA
 		CONSTRUCTORS
 
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