linux-kernel - Re: [PATCH] x86: fix build with older binutils and consolidate linker script

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Message-ID: <4A8F0228.80805@zytor.com>
Date:	Fri, 21 Aug 2009 13:23:04 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jan Beulich <JBeulich@...ell.com>
CC:	mingo@...e.hu, tglx@...utronix.de, sam@...nborg.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: fix build with older binutils and consolidate	 linker
 script

On 08/18/2009 08:51 AM, Jan Beulich wrote:
>  
>  #define VSYSCALL_ADDR (-10*1024*1024)
> -#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + \
> -                            SIZEOF(.data.read_mostly) + 4095) & ~(4095))
> -#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + \
> -                            SIZEOF(.data.read_mostly) + 4095) & ~(4095))
> +#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data) + SIZEOF(.data) + \
> +                            PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
> +#define VSYSCALL_VIRT_ADDR ((ADDR(.data) + SIZEOF(.data) + \
> +                            PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
>  

I'm missing something with this chunk... could you please explain?

	-hpa
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