Re: [PATCH 01/14] x86, boot: align the .bss section in thedecompressor

[Cyrill Gorcunov]

[H. Peter Anvin - Thu, May 07, 2009 at 03:26:49PM -0700]
| From: H. Peter Anvin <hpa@xxxxxxxxx>
| 
| Aligning the .bss section makes it trivially faster, and makes using
| larger transfers for the clear slightly easier.
| 
| [ Impact: trivial performance enhancement, future patch prep ]
| 
| Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
| ---
|  arch/x86/boot/compressed/vmlinux.lds.S |    1 +
|  1 files changed, 1 insertions(+), 0 deletions(-)
| 
| diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
| index 0d26c92..27c168d 100644
| --- a/arch/x86/boot/compressed/vmlinux.lds.S
| +++ b/arch/x86/boot/compressed/vmlinux.lds.S
| @@ -42,6 +42,7 @@ SECTIONS
|  		*(.data.*)
|  		_edata = . ;
|  	}
| +	. = ALIGN(32);
|  	.bss : {
|  		_bss = . ;
|  		*(.bss)
| -- 
| 1.6.0.6
| 

Hi Peter, should not it be ALIGN(8) rather? I thought
we keep these sections as tight as possible in a sake
of limitation of setup code size. Perhaps I miss something.

	-- Cyrill
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