linux-kernel - [PATCH 02/16] x86: Provide _sdata in the vmlinux.lds.S file

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Message-Id: <1245183355-25808-3-git-send-email-jeremy@goop.org>
Date:	Tue, 16 Jun 2009 13:15:41 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 02/16] x86: Provide _sdata in the vmlinux.lds.S file

From: Catalin Marinas <catalin.marinas@....com>

_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
 
-- 
1.6.2.2

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