[PATCH 09/14] x86: Provide _sdata in the vmlinux_*.lds.S files

Catalin Marinas
2009-04-24T16:44:32Z

_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.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
---
arch/x86/kernel/vmlinux_32.lds.S | 1 +
arch/x86/kernel/vmlinux_64.lds.S | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S
index 62ad500..27cfbab 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -63,6 +63,7 @@ SECTIONS

/* writeable */
. = ALIGN(PAGE_SIZE);
+ _sdata = .; /* Start of data section */
.data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */
DATA_DATA
CONSTRUCTORS
diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index c874250..ea33316 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -57,6 +57,7 @@ SECTIONS
RODATA

. = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */
+ _sdata = .; /* Start of data section */
/* Data */
.data : AT(ADDR(.data) - LOAD_OFFSET) {
DATA_DATA