linux-kernel - Re: [PATCH] MIPS: dont specify STACKPROTECTOR in defconfigs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Thu, 4 Aug 2016 16:05:26 +0200
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>
Cc:	linux-kernel@...r.kernel.org,
	James Hartley <james.hartley@...tec.com>,
	Ionela Voinescu <ionela.voinescu@...tec.com>,
	linux-mips@...ux-mips.org
Subject: Re: [PATCH] MIPS: dont specify STACKPROTECTOR in defconfigs

On Wed, Aug 03, 2016 at 03:03:59PM -0400, Paul Gortmaker wrote:

> Only one defconfig has a STACKPROTECTOR value.  And it asks for
> the strong variant, which isn't supported by older toolchains.
> 
> Due to the nature of MIPS having more platform specific code than say
> x86, the allyesconfig and allmodconfig aren't as effective for build
> coverage.  So, in addition, I like to use a trivial script to walk all
> the defconfigs and build each one.
> 
> However I will get false positives on unsupported stackprotector values
> with an older toolchain like gcc-4.6.3.  As in this instance I am just
> using the compiler as a glorified syntax checker on a machine where I
> build a bunch of other arch for the same reason, there is no real
> motivation to get a newer toolchain for improved optimization etc.
> 
> Since there is only one of them, and there is nothing about these
> settings that are board/platform specific, I propose we just eliminate
> the existing instance and take the default.

Yeah, I can see how that one may get annoying.  I wish there was something
along the lines of KCONFIG_ALLCONFIG that was working not only for
allyesconfig/allmodconfig/allnoconfig/randconfig.

Applied.  Thanks,

  Ralf