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x86: make sure load_percpu_segment has no stackprotector

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load_percpu_segment() is used to set up the per-cpu segment registers,
which are also used for -fstack-protector.  Make sure that the
load_percpu_segment() function doesn't have stackprotector enabled.

[ Impact: allow percpu setup before calling stack-protected functions ]

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-08-17 12:25:41 -07:00
parent 1406de8e11
commit 5416c26635
1 changed files with 4 additions and 0 deletions
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4
arch/x86/kernel/cpu/Makefile
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@ -7,6 +7,10 @@ ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_common.o = -pg CFLAGS_REMOVE_common.o = -pg
endif endif
# Make sure load_percpu_segment has no stackprotector
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_common.o := $(nostackp)
obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y := intel_cacheinfo.o addon_cpuid_features.o
obj-y += proc.o capflags.o powerflags.o common.o obj-y += proc.o capflags.o powerflags.o common.o
obj-y += vmware.o hypervisor.o obj-y += vmware.o hypervisor.o