linux-kernel - Re: [PATCH] kasan: Show gcc version requirements in Kconfig and Documentation

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Message-ID: <1429263462.2850.87.camel@perches.com>
Date:	Fri, 17 Apr 2015 02:37:42 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrey Ryabinin <a.ryabinin@...sung.com>
Cc:	Sasha Levin <sasha.levin@...cle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Guilherme Cox <cox@...puter.org>,
	Tony Luck <tony.luck@...il.com>,
	Xie XiuQi <xiexiuqi@...wei.com>
Subject: Re: [PATCH] kasan: Show gcc version requirements in Kconfig and
 Documentation

On Fri, 2015-04-17 at 10:54 +0300, Andrey Ryabinin wrote:
> On 04/17/2015 07:44 AM, Joe Perches wrote:
> > The documentation shows a need for gcc > 4.9.2, but it's
> > really >=.  The Kconfig entries don't show require versions
> > so add them.  Correct a latter/later typo too.
[]
> > On Thu, 2015-04-16 at 23:59 -0400, Sasha Levin wrote:
> >> On 04/16/2015 11:21 PM, Steven Rostedt wrote:
> >>> I have no idea what event caused the issue :-/
> >> 4.9.2+ is needed for KASan.
> > 
> > Perhaps the documentation and Kconfig entries could
> > describe that a bit better.
> > 
> 
> Could you also please mention that gcc 5+ is required to detect out of bounds accesses
> to global and stack variables?

You know better than I where and how to describe that.


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