From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 2 Aug 2015 07:40:12 +0000 (+0000)
Subject: build: disable kernel stack protector support for i386/x86_64
X-Git-Url: http://git.ozo.com/?a=commitdiff_plain;h=a4e7857a148e93d73413b7674f8537edc69001e7;p=openwrt-github%2F.git

build: disable kernel stack protector support for i386/x86_64

When stack protector support is disabled in libc (always the case for
!musl), gcc assumes that it needs to use __stack_chk_guard for the stack
canary.
This causes kernel build errors, because the kernel is only set up to
handle TLS stack canaries.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46543 3c298f89-4303-0410-b956-a3cf2f4a3e73
---

diff --git a/config/Config-build.in b/config/Config-build.in
index 4e2b0f583d..f2d292e453 100644
--- a/config/Config-build.in
+++ b/config/Config-build.in
@@ -239,6 +239,7 @@ menu "Global build settings"
 	choice
 		prompt "Kernel space Stack-Smashing Protection"
 		default KERNEL_CC_STACKPROTECTOR_REGULAR
+		depends on USE_MUSL || !(x86_64 || i386)
 		help
 		  Enable GCC Stack-Smashing Protection (SSP) for the kernel
 		config KERNEL_CC_STACKPROTECTOR_NONE