[PATCH v2 1/6] Add new macros for page-aligned data and bss sections.

[Sam Ravnborg]

On Fri, May 01, 2009 at 09:33:13AM -0700, H. Peter Anvin wrote:
> Tim Abbott wrote:
> > On Fri, 1 May 2009, Sam Ravnborg wrote:
> > 
> >> On Thu, Apr 30, 2009 at 03:54:08PM -0400, Tim Abbott wrote:
> >>> +#define __PAGE_ALIGNED_DATA	.section ".data.page_aligned", "aw", @progbits
> >>> +#define __PAGE_ALIGNED_BSS	.section ".bss.page_aligned", "aw", @nobits
> >> It is my understanding that the linker will automatically
> >> assume nobits for section names starting with .bss and likewise
> >> progbits for section names starting with .data - so we can leave them out?
> > 
> > I believe that is correct.
> > 
> 
> ... but that doesn't mean it's the right thing to do.
> 
> It's better to be fully explicit when macroizing this kind of stuff.
> This is part of why macroizing it is good: it means we end up with *one*
> place that determines this stuff, not some magic heuristics in the linker.

Do you know if we can use % in place of @?
I could see that gas supports both - at least in trunk in cvs.

	Sam