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893ab00439
Some Makefiles already pass -fno-stack-protector unconditionally. For example, arch/arm64/kernel/vdso/Makefile, arch/x86/xen/Makefile. No problem report so far about hard-coding this option. So, we can assume all supported compilers know -fno-stack-protector. GCC 4.8 and Clang support this option (https://godbolt.org/z/_HDGzN) Get rid of cc-option from -fno-stack-protector. Remove CONFIG_CC_HAS_STACKPROTECTOR_NONE, which is always 'y'. Note: arch/mips/vdso/Makefile adds -fno-stack-protector twice, first unconditionally, and second conditionally. I removed the second one. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
55 lines
1.4 KiB
Makefile
55 lines
1.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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OBJECT_FILES_NON_STANDARD_xen-asm_$(BITS).o := y
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ifdef CONFIG_FUNCTION_TRACER
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# Do not profile debug and lowlevel utilities
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CFLAGS_REMOVE_spinlock.o = -pg
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CFLAGS_REMOVE_time.o = -pg
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CFLAGS_REMOVE_irq.o = -pg
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endif
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# Make sure early boot has no stackprotector
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CFLAGS_enlighten_pv.o := -fno-stack-protector
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CFLAGS_mmu_pv.o := -fno-stack-protector
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obj-y += enlighten.o
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obj-y += mmu.o
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obj-y += time.o
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obj-y += grant-table.o
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obj-y += suspend.o
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obj-$(CONFIG_XEN_PVHVM) += enlighten_hvm.o
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obj-$(CONFIG_XEN_PVHVM) += mmu_hvm.o
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obj-$(CONFIG_XEN_PVHVM) += suspend_hvm.o
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obj-$(CONFIG_XEN_PVHVM) += platform-pci-unplug.o
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obj-$(CONFIG_XEN_PV) += setup.o
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obj-$(CONFIG_XEN_PV) += apic.o
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obj-$(CONFIG_XEN_PV) += pmu.o
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obj-$(CONFIG_XEN_PV) += suspend_pv.o
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obj-$(CONFIG_XEN_PV) += p2m.o
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obj-$(CONFIG_XEN_PV) += enlighten_pv.o
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obj-$(CONFIG_XEN_PV) += mmu_pv.o
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obj-$(CONFIG_XEN_PV) += irq.o
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obj-$(CONFIG_XEN_PV) += multicalls.o
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obj-$(CONFIG_XEN_PV) += xen-asm.o
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obj-$(CONFIG_XEN_PV) += xen-asm_$(BITS).o
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obj-$(CONFIG_XEN_PVH) += enlighten_pvh.o
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obj-$(CONFIG_EVENT_TRACING) += trace.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_XEN_PV_SMP) += smp_pv.o
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obj-$(CONFIG_XEN_PVHVM_SMP) += smp_hvm.o
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obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
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obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
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obj-$(CONFIG_XEN_DOM0) += vga.o
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obj-$(CONFIG_SWIOTLB_XEN) += pci-swiotlb-xen.o
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obj-$(CONFIG_XEN_EFI) += efi.o
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