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Subject[PATCH 09/15] x86: Provide _sdata in the vmlinux_*.lds.S files
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Date
_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 a9b8560..b5d2b49 100644
--- a/arch/x86/kernel/vmlinux_32.lds.S
+++ b/arch/x86/kernel/vmlinux_32.lds.S
@@ -62,6 +62,7 @@ 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 46e0544..8ad376c 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -52,6 +52,7 @@ 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


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