linux-kernel - Re: [PATCH] m68knommu: Clean up linker script using new linker script macros.

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Date:	Mon, 7 Sep 2009 01:37:33 -0400 (EDT)
From:	Tim Abbott <tabbott@...lice.com>
To:	Greg Ungerer <gerg@...pgear.com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Greg Ungerer <gerg@...inux.org>
Subject: Re: [PATCH] m68knommu: Clean up linker script using new linker script
 macros.

On Mon, 7 Sep 2009, Greg Ungerer wrote:

> This fails for me with:
> 
>   LD      vmlinux
> /usr/local/bin/m68k-uclinux-ld:arch/m68knommu/kernel/vmlinux.lds:287: syntax
> error
> 
> due to PAGE_SIZE evaluating to:
> 
>   . = ALIGN((1UL << (12)));
> 
> The linker doesn't like the 'UL' suffix.

Yeah, sorry, I didn't have a cross-compiler for this one to test.  The fix 
is to use _AC(1,UL), like most of the other architectures (including m68k 
with an mmu) do.

	-Tim Abbott

m68knommu: Make PAGE_SIZE available to assembly files.

Signed-off-by: Tim Abbott <tabbott@...lice.com>
---
 arch/m68k/include/asm/page_no.h |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
index 9aa3f90..1f31b06 100644
--- a/arch/m68k/include/asm/page_no.h
+++ b/arch/m68k/include/asm/page_no.h
@@ -1,10 +1,12 @@
 #ifndef _M68KNOMMU_PAGE_H
 #define _M68KNOMMU_PAGE_H
 
+#include <linux/const.h>
+
 /* PAGE_SHIFT determines the page size */
 
 #define PAGE_SHIFT	(12)
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
 #include <asm/setup.h>
-- 
1.6.3.3

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