From: Linus Torvalds Date: Mon, 20 Jan 2014 18:26:31 +0000 (-0800) Subject: Merge branch 'core-stackprotector-for-linus' of git://git.kernel.org/pub/scm/linux... X-Git-Tag: v3.14-rc1~173 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ad3ab302fd8239a1ddee01e606683c3197ca6908;p=profile%2Fivi%2Fkernel-x86-ivi.git Merge branch 'core-stackprotector-for-linus' of git://git./linux/kernel/git/tip/tip Pull strong stackprotector support from Ingo Molnar: "This tree adds a CONFIG_CC_STACKPROTECTOR_STRONG=y, a new, stronger stack canary checking method supported by the newest GCC versions (4.9 and later). Here's the 'intensity comparison' between the various protection modes: - defconfig 11430641 kernel text size 36110 function bodies - defconfig + CONFIG_CC_STACKPROTECTOR_REGULAR 11468490 kernel text size (+0.33%) 1015 of 36110 functions are stack-protected (2.81%) - defconfig + CONFIG_CC_STACKPROTECTOR_STRONG via this patch 11692790 kernel text size (+2.24%) 7401 of 36110 functions are stack-protected (20.5%) the strong model comes with non-trivial costs, which is why we preserved the 'regular' and 'none' models as well" * 'core-stackprotector-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures --- ad3ab302fd8239a1ddee01e606683c3197ca6908