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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>
--
This commit is contained in:
Michal Schmidt 2009-08-29 18:27:18 +02:00 committed by Ingo Molnar
parent ab94fcf528
commit 23386d63bb
1 changed files with 1 additions and 1 deletions
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2
arch/x86/Makefile
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@ -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)