there are three different linker scripts with different usages,
arch/i386/boot/setup.ld
arch/i386/boot/compressed/vmlinux.lds
arch/i386/kernel/vmlinux.lds
accompanlying with three different sections of clearing BSS,
arch/i386/boot/header.S
arch/i386/boot/compressed/head.S
arch/i386/kernel/head.S
but their label names in .bss section are different,
when reading these files, they are apt to confuse,
this patch kept them in the same style of clearing.
Signed-off-by: Denis Cheng <[email protected]>
---
arch/i386/boot/compressed/head.S | 2 +-
arch/i386/boot/header.S | 2 +-
arch/i386/boot/setup.ld | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/i386/boot/compressed/head.S b/arch/i386/boot/compressed/head.S
index f35ea22..e499db0 100644
--- a/arch/i386/boot/compressed/head.S
+++ b/arch/i386/boot/compressed/head.S
@@ -113,7 +113,7 @@ relocated:
* Clear BSS
*/
xorl %eax,%eax
- leal _edata(%ebx),%edi
+ leal _bss(%ebx),%edi
leal _end(%ebx), %ecx
subl %edi,%ecx
cld
diff --git a/arch/i386/boot/header.S b/arch/i386/boot/header.S
index 7f4a2c5..cd074c1 100644
--- a/arch/i386/boot/header.S
+++ b/arch/i386/boot/header.S
@@ -254,7 +254,7 @@ setup2:
# Zero the bss
movw $__bss_start, %di
- movw $_end+3, %cx
+ movw $__bss_end, %cx
xorl %eax, %eax
subw %di, %cx
shrw $2, %cx
diff --git a/arch/i386/boot/setup.ld b/arch/i386/boot/setup.ld
index df9234b..f9d6897 100644
--- a/arch/i386/boot/setup.ld
+++ b/arch/i386/boot/setup.ld
@@ -36,15 +36,15 @@ SECTIONS
LONG(0x5a5aaa55)
}
-
. = ALIGN(16);
.bss :
{
__bss_start = .;
*(.bss)
+ . = ALIGN(16);
__bss_end = .;
}
- . = ALIGN(16);
+
_end = .;
/DISCARD/ : { *(.note*) }
--
1.5.3.rc4
-
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