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Subject[tip:x86/asm] x86: Detect stack protector for i386 builds on x86_64
Commit-ID:  23386d63bbb3199cf247313ec088878d72debcfd
Gitweb: http://git.kernel.org/tip/23386d63bbb3199cf247313ec088878d72debcfd
Author: Michal Schmidt <mschmidt@redhat.com>
AuthorDate: Sat, 29 Aug 2009 18:27:18 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sun, 30 Aug 2009 20:39:48 +0200

x86: Detect stack protector for i386 builds on x86_64

Stack protector support was not detected when building with
ARCH=i386 on x86_64 systems:

arch/x86/Makefile:80: stack protector enabled but no compiler support

The "-m32" argument needs to be passed to the detection script.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Arjan van de Ven <arjan@infradead.org>
LKML-Reference: <20090829182718.10f566b1@leela>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
--


---
arch/x86/Makefile | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 1b68659..5e7db44 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -72,7 +72,7 @@ endif

ifdef CONFIG_CC_STACKPROTECTOR
cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
- ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC)),y)
+ ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(biarch)),y)
stackp-y := -fstack-protector
stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += -fstack-protector-all
KBUILD_CFLAGS += $(stackp-y)

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