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authorIngo Molnar <mingo@elte.hu>2008-02-14 08:38:49 +0100
committerIngo Molnar <mingo@elte.hu>2008-02-19 16:18:32 +0100
commite43eb7bab6e82e1aa93ce4d39546c54347a68077 (patch)
tree52c8e0973a6b84493e9f8e8f2daf8410336beca8 /arch/x86
parente00fc542eb694e448249361ef63c190e74f53574 (diff)
downloadop-kernel-dev-e43eb7bab6e82e1aa93ce4d39546c54347a68077.zip
op-kernel-dev-e43eb7bab6e82e1aa93ce4d39546c54347a68077.tar.gz
x86: exclude vsyscall files from stackprotect
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/Makefile10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 76ec0f8..4eb5ce8 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -6,7 +6,15 @@ extra-y := head_$(BITS).o init_task.o vmlinux.lds
extra-$(CONFIG_X86_64) += head64.o
CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
-CFLAGS_vsyscall_64.o := $(PROFILING) -g0
+
+#
+# vsyscalls (which work on the user stack) should have
+# no stack-protector checks:
+#
+nostackp := $(call cc-option, -fno-stack-protector)
+CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp)
+CFLAGS_hpet.o := $(nostackp)
+CFLAGS_tsc_64.o := $(nostackp)
obj-y := process_$(BITS).o signal_$(BITS).o entry_$(BITS).o
obj-y += traps_$(BITS).o irq_$(BITS).o
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