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

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Message-ID: <tip-4504c6d020fc5aec7659bf7746e71b1b904571f8@git.kernel.org>
Date:	Mon, 11 May 2009 12:30:32 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/kbuild] x86: Provide _sdata in the vmlinux.lds.S file

Commit-ID:  4504c6d020fc5aec7659bf7746e71b1b904571f8
Gitweb:     http://git.kernel.org/tip/4504c6d020fc5aec7659bf7746e71b1b904571f8
Author:     Catalin Marinas <catalin.marinas@....com>
AuthorDate: Mon, 11 May 2009 13:22:00 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Mon, 11 May 2009 14:28:55 +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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