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> --
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@ -72,7 +72,7 @@ endif
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ifdef CONFIG_CC_STACKPROTECTOR
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cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
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ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC)),y)
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ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(biarch)),y)
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stackp-y := -fstack-protector
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stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += -fstack-protector-all
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KBUILD_CFLAGS += $(stackp-y)
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