linux-kernel - Re: [PATCH] x86: clean up vdso-layout.lds.S

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Message-ID: <4A2EA719.2000608@zytor.com>
Date:	Tue, 09 Jun 2009 11:16:57 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Sam Ravnborg <sam@...nborg.org>
CC:	Petr Tesarik <ptesarik@...e.cz>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Roland McGrath <roland@...hat.com>
Subject: Re: [PATCH] x86: clean up vdso-layout.lds.S

Sam Ravnborg wrote:
>>
>>> Why do we need *(.data .data.*) rather than *(.data*)?
>>> *(.dynbss*)?
>> I don't have any strong opinion here, but the former is exactly what the
>> default linker script has.
> 
> My general take on this is that we should know and deal with what the linker produces.
> So if we only expect .data then .data.* could go into .broken so we catch it. 
> 

That will break if we change to per-function sections.

	-hpa
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