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authorTejun Heo <tj@kernel.org>2009-02-09 22:17:39 +0900
committerIngo Molnar <mingo@elte.hu>2009-02-10 00:41:54 +0100
commit5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4 (patch)
treed0088b317ee562f6655d58f5d561e2bb6aa5332c /Makefile
parentx86: stackprotector.h misc update (diff)
downloadlinux-dev-5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4.tar.xz
linux-dev-5d707e9c8ef2a3596ed5c975c6ff05cec890c2b4.zip
stackprotector: update make rules
Impact: no default -fno-stack-protector if stackp is enabled, cleanup Stackprotector make rules had the following problems. * cc support test and warning are scattered across makefile and kernel/panic.c. * -fno-stack-protector was always added regardless of configuration. Update such that cc support test and warning are contained in makefile and -fno-stack-protector is added iff stackp is turned off. While at it, prepare for 32bit support. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 681c1d23b4d4..77a006dae2da 100644
--- a/Makefile
+++ b/Makefile
@@ -532,8 +532,9 @@ KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
endif
# Force gcc to behave correct even for buggy distributions
-# Arch Makefiles may override this setting
+ifndef CONFIG_CC_STACKPROTECTOR
KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
+endif
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls