linux-kernel - Re: [git pull] x86 updates

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Message-ID: <47A8D088.7050209@zytor.com>
Date:	Tue, 05 Feb 2008 13:09:28 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Sam Ravnborg <sam@...nborg.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [git pull] x86 updates

Ingo Molnar wrote:
> 
> btw., what's the practical consequence of getting these section flags 
> wrong - for example writable data can end up in executable section 
> accidentally and be marked readonly by RODATA? Or can anything more 
> serious happen? (they cannot get into any of the discarded sections, we 
> filter for them explicitly in the linker scripts)
> 

The practical consequences are probably zero - *except* for getting the 
"a" flag wrong, as !a sections will never be loaded.

Technically we should also specify @progbits or @nobits on sections, 
however, I think @progbits is the default.

	-hpa
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