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Message-ID: <20170216222529.GA7531@amd>
Date: Thu, 16 Feb 2017 23:25:29 +0100
From: Pavel Machek <pavel@....cz>
To: Laura Abbott <labbott@...hat.com>
Cc: Kees Cook <keescook@...omium.org>, Mark Rutland <mark.rutland@....com>,
linux-doc@...r.kernel.org,
Catalin Marinas <catalin.marinas@....com>,
Heiko Carstens <heiko.carstens@...ibm.com>,
"James E.J. Bottomley" <jejb@...isc-linux.org>,
"H. Peter Anvin" <hpa@...or.com>,
kernel-hardening@...ts.openwall.com, Rob Herring <robh@...nel.org>,
Jessica Yu <jeyu@...hat.com>, Jonathan Corbet <corbet@....net>,
Helge Deller <deller@....de>, x86@...nel.org,
Russell King <linux@...linux.org.uk>,
Ingo Molnar <mingo@...hat.com>, Len Brown <len.brown@...el.com>,
linux-s390@...r.kernel.org, Will Deacon <will.deacon@....com>,
Thomas Gleixner <tglx@...utronix.de>,
linux-arm-kernel@...ts.infradead.org, linux-parisc@...r.kernel.org,
linux-pm@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net>,
linux-kernel@...r.kernel.org,
Jason Wessel <jason.wessel@...driver.com>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCHv3 2/2] arch: Rename CONFIG_DEBUG_RODATA and
CONFIG_DEBUG_MODULE_RONX
Hi!
>
> -config DEBUG_RODATA
> +config STRICT_KERNEL_RWX
> bool "Make kernel text and rodata read-only" if ARCH_OPTIONAL_KERNEL_RWX
> depends on ARCH_HAS_STRICT_KERNEL_RWX
> default !ARCH_OPTIONAL_KERNEL_RWX ||
Debug features are expected to have runtime cost, so kconfig help is
silent about those. But there are runtime costs, right? It would be
nice to mention them in the help text...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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