d49c428840
... so it could fall back to normal numa and we'd reduce the impact of the NUMAQ subarch. NUMAQ depends on GENERICARCH also decouple genericarch numa from acpi. also make it fall back to bigsmp if apicid > 8. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
243 lines
7.8 KiB
Makefile
243 lines
7.8 KiB
Makefile
# Unified Makefile for i386 and x86_64
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# select defconfig based on actual architecture
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ifeq ($(ARCH),x86)
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KBUILD_DEFCONFIG := i386_defconfig
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else
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KBUILD_DEFCONFIG := $(ARCH)_defconfig
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endif
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core-$(CONFIG_KVM) += arch/x86/kvm/
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# BITS is used as extension for files which are available in a 32 bit
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# and a 64 bit version to simplify shared Makefiles.
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# e.g.: obj-y += foo_$(BITS).o
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export BITS
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ifeq ($(CONFIG_X86_32),y)
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BITS := 32
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UTS_MACHINE := i386
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CHECKFLAGS += -D__i386__
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biarch := $(call cc-option,-m32)
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KBUILD_AFLAGS += $(biarch)
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KBUILD_CFLAGS += $(biarch)
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ifdef CONFIG_RELOCATABLE
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LDFLAGS_vmlinux := --emit-relocs
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endif
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KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
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# prevent gcc from keeping the stack 16 byte aligned
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KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
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# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
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# a lot more stack due to the lack of sharing of stacklots:
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KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
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echo $(call cc-option,-fno-unit-at-a-time); fi ;)
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# CPU-specific tuning. Anything which can be shared with UML should go here.
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include $(srctree)/arch/x86/Makefile_32.cpu
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KBUILD_CFLAGS += $(cflags-y)
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# temporary until string.h is fixed
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KBUILD_CFLAGS += -ffreestanding
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else
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BITS := 64
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UTS_MACHINE := x86_64
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CHECKFLAGS += -D__x86_64__ -m64
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KBUILD_AFLAGS += -m64
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KBUILD_CFLAGS += -m64
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# FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
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cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
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cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
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cflags-$(CONFIG_MCORE2) += \
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$(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
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cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_CFLAGS += -mno-red-zone
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KBUILD_CFLAGS += -mcmodel=kernel
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# -funit-at-a-time shrinks the kernel .text considerably
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# unfortunately it makes reading oopses harder.
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KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
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# this works around some issues with generating unwind tables in older gccs
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# newer gccs do it by default
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KBUILD_CFLAGS += -maccumulate-outgoing-args
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stackp := $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh
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stackp-$(CONFIG_CC_STACKPROTECTOR) := $(shell $(stackp) \
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"$(CC)" -fstack-protector )
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stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(stackp) \
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"$(CC)" -fstack-protector-all )
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KBUILD_CFLAGS += $(stackp-y)
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endif
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# Stackpointer is addressed different for 32 bit and 64 bit x86
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sp-$(CONFIG_X86_32) := esp
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sp-$(CONFIG_X86_64) := rsp
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# do binutils support CFI?
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cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
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# is .cfi_signal_frame supported too?
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cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
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KBUILD_AFLAGS += $(cfi) $(cfi-sigframe)
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KBUILD_CFLAGS += $(cfi) $(cfi-sigframe)
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LDFLAGS := -m elf_$(UTS_MACHINE)
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# Speed up the build
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KBUILD_CFLAGS += -pipe
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# Workaround for a gcc prelease that unfortunately was shipped in a suse release
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KBUILD_CFLAGS += -Wno-sign-compare
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#
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KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
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# prevent gcc from generating any FP code by mistake
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KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
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###
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# Sub architecture support
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# fcore-y is linked before mcore-y files.
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# Default subarch .c files
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mcore-y := arch/x86/mach-default/
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# Voyager subarch support
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mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
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mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/
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# VISWS subarch support
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mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
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mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws/
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# generic subarchitecture
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mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic
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fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
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mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/
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# RDC R-321x subarch support
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mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x
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mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/
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core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/
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# default subarch .h files
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mflags-y += -Iinclude/asm-x86/mach-default
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# 64 bit does not support subarch support - clear sub arch variables
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fcore-$(CONFIG_X86_64) :=
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mcore-$(CONFIG_X86_64) :=
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KBUILD_CFLAGS += $(mflags-y)
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KBUILD_AFLAGS += $(mflags-y)
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###
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# Kernel objects
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head-y := arch/x86/kernel/head_$(BITS).o
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head-y += arch/x86/kernel/head$(BITS).o
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head-y += arch/x86/kernel/head.o
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head-y += arch/x86/kernel/init_task.o
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libs-y += arch/x86/lib/
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# Sub architecture files that needs linking first
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core-y += $(fcore-y)
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# Xen paravirtualization support
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core-$(CONFIG_XEN) += arch/x86/xen/
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# lguest paravirtualization support
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core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
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core-y += arch/x86/kernel/
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core-y += arch/x86/mm/
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# Remaining sub architecture files
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core-y += $(mcore-y)
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core-y += arch/x86/crypto/
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core-y += arch/x86/vdso/
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core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/
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# drivers-y are linked after core-y
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drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
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drivers-$(CONFIG_PCI) += arch/x86/pci/
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# must be linked after kernel/
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drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
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# suspend and hibernation support
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drivers-$(CONFIG_PM) += arch/x86/power/
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ifeq ($(CONFIG_X86_32),y)
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drivers-$(CONFIG_FB) += arch/x86/video/
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endif
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####
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# boot loader support. Several targets are kept for legacy purposes
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boot := arch/x86/boot
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PHONY += zImage bzImage compressed zlilo bzlilo \
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zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
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# Default kernel to build
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all: bzImage
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# KBUILD_IMAGE specify target image being built
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KBUILD_IMAGE := $(boot)/bzImage
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zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
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zImage bzImage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
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$(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
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$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/bzImage
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compressed: zImage
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zlilo bzlilo: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
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zdisk bzdisk: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
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fdimage fdimage144 fdimage288 isoimage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
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install:
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
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PHONY += vdso_install
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vdso_install:
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$(Q)$(MAKE) $(build)=arch/x86/vdso $@
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archclean:
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$(Q)rm -rf $(objtree)/arch/i386
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$(Q)rm -rf $(objtree)/arch/x86_64
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$(Q)$(MAKE) $(clean)=$(boot)
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define archhelp
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echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
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echo ' install - Install kernel using'
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echo ' (your) ~/bin/installkernel or'
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echo ' (distribution) /sbin/installkernel or'
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echo ' install to $$(INSTALL_PATH) and run lilo'
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echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
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echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
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echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
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echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
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echo ' bzdisk/fdimage*/isoimage also accept:'
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echo ' FDARGS="..." arguments for the booted kernel'
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echo ' FDINITRD=file initrd for the booted kernel'
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endef
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CLEAN_FILES += arch/x86/boot/fdimage \
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arch/x86/boot/image.iso \
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arch/x86/boot/mtools.conf
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