[linux-block.git] / arch / x86 / Makefile

# Unified Makefile for i386 and x86_64

# select defconfig based on actual architecture
ifeq ($(ARCH),x86)
  ifeq ($(shell uname -m),x86_64)
        KBUILD_DEFCONFIG := x86_64_defconfig
  else
        KBUILD_DEFCONFIG := i386_defconfig
  endif
else
        KBUILD_DEFCONFIG := $(ARCH)_defconfig
endif

# BITS is used as extension for files which are available in a 32 bit
# and a 64 bit version to simplify shared Makefiles.
# e.g.: obj-y += foo_$(BITS).o
export BITS

ifdef CONFIG_X86_NEED_RELOCS
        LDFLAGS_vmlinux := --emit-relocs
endif

ifeq ($(CONFIG_X86_32),y)
        BITS := 32
        UTS_MACHINE := i386
        CHECKFLAGS += -D__i386__

        biarch := $(call cc-option,-m32)
        KBUILD_AFLAGS += $(biarch)
        KBUILD_CFLAGS += $(biarch)

        KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return

        # Don't autogenerate MMX or SSE instructions
        KBUILD_CFLAGS += -mno-mmx -mno-sse

        # Never want PIC in a 32-bit kernel, prevent breakage with GCC built
        # with nonstandard options
        KBUILD_CFLAGS += -fno-pic

        # prevent gcc from keeping the stack 16 byte aligned
        KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)

        # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
        # a lot more stack due to the lack of sharing of stacklots:
        KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
				$(call cc-option,-fno-unit-at-a-time))

        # CPU-specific tuning. Anything which can be shared with UML should go here.
        include $(srctree)/arch/x86/Makefile_32.cpu
        KBUILD_CFLAGS += $(cflags-y)

        # temporary until string.h is fixed
        KBUILD_CFLAGS += -ffreestanding
else
        BITS := 64
        UTS_MACHINE := x86_64
        CHECKFLAGS += -D__x86_64__ -m64

        KBUILD_AFLAGS += -m64
        KBUILD_CFLAGS += -m64

        # Don't autogenerate MMX or SSE instructions
        KBUILD_CFLAGS += -mno-mmx -mno-sse

	# Use -mpreferred-stack-boundary=3 if supported.
	KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)

        # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
        cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
        cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)

        cflags-$(CONFIG_MCORE2) += \
                $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
	cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
		$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
        cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
        KBUILD_CFLAGS += $(cflags-y)

        KBUILD_CFLAGS += -mno-red-zone
        KBUILD_CFLAGS += -mcmodel=kernel

        # -funit-at-a-time shrinks the kernel .text considerably
        # unfortunately it makes reading oopses harder.
        KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)

        # this works around some issues with generating unwind tables in older gccs
        # newer gccs do it by default
        KBUILD_CFLAGS += -maccumulate-outgoing-args
endif

# Make sure compiler does not have buggy stack-protector support.
ifdef CONFIG_CC_STACKPROTECTOR
	cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
        ifneq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) $(biarch)),y)
                $(warning stack-protector enabled but compiler support broken)
        endif
endif

ifdef CONFIG_X86_X32
	x32_ld_ok := $(call try-run,\
			/bin/echo -e '1: .quad 1b' | \
			$(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" - && \
			$(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
			$(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
        ifeq ($(x32_ld_ok),y)
                CONFIG_X86_X32_ABI := y
                KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
                KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
        else
                $(warning CONFIG_X86_X32 enabled but no binutils support)
        endif
endif
export CONFIG_X86_X32_ABI

# Don't unroll struct assignments with kmemcheck enabled
ifeq ($(CONFIG_KMEMCHECK),y)
	KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
endif

# Stackpointer is addressed different for 32 bit and 64 bit x86
sp-$(CONFIG_X86_32) := esp
sp-$(CONFIG_X86_64) := rsp

# do binutils support CFI?
cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
# is .cfi_signal_frame supported too?
cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1)

# does binutils support specific instructions?
asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)

KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr)
KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr)

LDFLAGS := -m elf_$(UTS_MACHINE)

# Speed up the build
KBUILD_CFLAGS += -pipe
# Workaround for a gcc prelease that unfortunately was shipped in a suse release
KBUILD_CFLAGS += -Wno-sign-compare
#
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
# prevent gcc from generating any FP code by mistake
KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
KBUILD_CFLAGS += $(call cc-option,-mno-avx,)

KBUILD_CFLAGS += $(mflags-y)
KBUILD_AFLAGS += $(mflags-y)

archscripts: scripts_basic
	$(Q)$(MAKE) $(build)=arch/x86/tools relocs

###
# Syscall table generation

archheaders:
	$(Q)$(MAKE) $(build)=arch/x86/syscalls all

###
# Kernel objects

head-y := arch/x86/kernel/head_$(BITS).o
head-y += arch/x86/kernel/head$(BITS).o
head-y += arch/x86/kernel/head.o

libs-y  += arch/x86/lib/

# See arch/x86/Kbuild for content of core part of the kernel
core-y += arch/x86/

# drivers-y are linked after core-y
drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
drivers-$(CONFIG_PCI)            += arch/x86/pci/

# must be linked after kernel/
drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/

# suspend and hibernation support
drivers-$(CONFIG_PM) += arch/x86/power/

drivers-$(CONFIG_FB) += arch/x86/video/

####
# boot loader support. Several targets are kept for legacy purposes

boot := arch/x86/boot

BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage

PHONY += bzImage $(BOOT_TARGETS)

# Default kernel to build
all: bzImage

# KBUILD_IMAGE specify target image being built
KBUILD_IMAGE := $(boot)/bzImage

bzImage: vmlinux
ifeq ($(CONFIG_X86_DECODER_SELFTEST),y)
	$(Q)$(MAKE) $(build)=arch/x86/tools posttest
endif
	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
	$(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@

$(BOOT_TARGETS): vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $@

PHONY += install
install:
	$(Q)$(MAKE) $(build)=$(boot) $@

PHONY += vdso_install
vdso_install:
	$(Q)$(MAKE) $(build)=arch/x86/vdso $@

archclean:
	$(Q)rm -rf $(objtree)/arch/i386
	$(Q)rm -rf $(objtree)/arch/x86_64
	$(Q)$(MAKE) $(clean)=$(boot)
	$(Q)$(MAKE) $(clean)=arch/x86/tools

PHONY += kvmconfig
kvmconfig:
	$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config arch/x86/configs/kvm_guest.config
	$(Q)yes "" | $(MAKE) oldconfig

define archhelp
  echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
  echo  '  install      - Install kernel using'
  echo  '                  (your) ~/bin/$(INSTALLKERNEL) or'
  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
  echo  '                  install to $$(INSTALL_PATH) and run lilo'
  echo  '  fdimage      - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
  echo  '  fdimage144   - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
  echo  '  fdimage288   - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
  echo  '  isoimage     - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
  echo  '                  bzdisk/fdimage*/isoimage also accept:'
  echo  '                  FDARGS="..."  arguments for the booted kernel'
  echo  '                  FDINITRD=file initrd for the booted kernel'
  echo  '  kvmconfig	- Enable additional options for guest kernel support'
endef
Commit	Line	Data
74b469f2 SR	1	# Unified Makefile for i386 and x86_64
74b469f2 SR	2
2266cfd5	3	# select defconfig based on actual architecture
d746d647	4	ifeq ($(ARCH),x86)
ffee0de4 DW	5	ifeq ($(shell uname -m),x86_64)
	6	KBUILD_DEFCONFIG := x86_64_defconfig
	7	else
d746d647	8	KBUILD_DEFCONFIG := i386_defconfig
ffee0de4	9	endif
d746d647 SR	10	else
	11	KBUILD_DEFCONFIG := $(ARCH)_defconfig
	12	endif
2266cfd5	13
0a6ef376 SR	14	# BITS is used as extension for files which are available in a 32 bit
	15	# and a 64 bit version to simplify shared Makefiles.
	16	# e.g.: obj-y += foo_$(BITS).o
	17	export BITS
74b469f2	18
a0215061 KC	19	ifdef CONFIG_X86_NEED_RELOCS
	20	LDFLAGS_vmlinux := --emit-relocs
	21	endif
	22
d746d647	23	ifeq ($(CONFIG_X86_32),y)
0a6ef376	24	BITS := 32
8c6531f7	25	UTS_MACHINE := i386
4ba7e5cd	26	CHECKFLAGS += -D__i386__
0a6ef376	27
4ba7e5cd SR	28	biarch := $(call cc-option,-m32)
	29	KBUILD_AFLAGS += $(biarch)
	30	KBUILD_CFLAGS += $(biarch)
0a6ef376	31
0a6ef376 SR	32	KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
0a6ef376 SR	33
8b3b005d PA	34	# Don't autogenerate MMX or SSE instructions
8b3b005d PA	35	KBUILD_CFLAGS += -mno-mmx -mno-sse
5551a34e	36
484d90ee AB	37	# Never want PIC in a 32-bit kernel, prevent breakage with GCC built
	38	# with nonstandard options
	39	KBUILD_CFLAGS += -fno-pic
	40
0a6ef376 SR	41	# prevent gcc from keeping the stack 16 byte aligned
	42	KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
	43
	44	# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
	45	# a lot more stack due to the lack of sharing of stacklots:
c7bd0414 FP	46	KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
c7bd0414 FP	47	$(call cc-option,-fno-unit-at-a-time))
0a6ef376 SR	48
	49	# CPU-specific tuning. Anything which can be shared with UML should go here.
	50	include $(srctree)/arch/x86/Makefile_32.cpu
	51	KBUILD_CFLAGS += $(cflags-y)
	52
	53	# temporary until string.h is fixed
	54	KBUILD_CFLAGS += -ffreestanding
74b469f2	55	else
0a6ef376	56	BITS := 64
8c6531f7	57	UTS_MACHINE := x86_64
0a6ef376 SR	58	CHECKFLAGS += -D__x86_64__ -m64
	59
	60	KBUILD_AFLAGS += -m64
	61	KBUILD_CFLAGS += -m64
	62
8b3b005d PA	63	# Don't autogenerate MMX or SSE instructions
8b3b005d PA	64	KBUILD_CFLAGS += -mno-mmx -mno-sse
5551a34e	65
d9b0cde9	66	# Use -mpreferred-stack-boundary=3 if supported.
5551a34e	67	KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)
d9b0cde9	68
0a6ef376 SR	69	# FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
	70	cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
	71	cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
	72
	73	cflags-$(CONFIG_MCORE2) += \
	74	$(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
366d19e1 TD	75	cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
366d19e1 TD	76	$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
0a6ef376 SR	77	cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
	78	KBUILD_CFLAGS += $(cflags-y)
	79
	80	KBUILD_CFLAGS += -mno-red-zone
	81	KBUILD_CFLAGS += -mcmodel=kernel
	82
0a6ef376 SR	83	# -funit-at-a-time shrinks the kernel .text considerably
	84	# unfortunately it makes reading oopses harder.
	85	KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
	86
0a6ef376 SR	87	# this works around some issues with generating unwind tables in older gccs
	88	# newer gccs do it by default
	89	KBUILD_CFLAGS += -maccumulate-outgoing-args
5d707e9c	90	endif
0a6ef376	91
19952a92	92	# Make sure compiler does not have buggy stack-protector support.
5d707e9c TH	93	ifdef CONFIG_CC_STACKPROTECTOR
5d707e9c TH	94	cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
19952a92 KC	95	ifneq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) $(biarch)),y)
19952a92 KC	96	$(warning stack-protector enabled but compiler support broken)
5d707e9c	97	endif
0a6ef376 SR	98	endif
0a6ef376 SR	99
0bf62763 PA	100	ifdef CONFIG_X86_X32
	101	x32_ld_ok := $(call try-run,\
	102	/bin/echo -e '1: .quad 1b' \| \
b1e0d8b7	103	$(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" - && \
0bf62763 PA	104	$(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
0bf62763 PA	105	$(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
8bd69c2d IM	106	ifeq ($(x32_ld_ok),y)
	107	CONFIG_X86_X32_ABI := y
	108	KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
	109	KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
	110	else
	111	$(warning CONFIG_X86_X32 enabled but no binutils support)
	112	endif
0bf62763 PA	113	endif
	114	export CONFIG_X86_X32_ABI
	115
dfec072e VN	116	# Don't unroll struct assignments with kmemcheck enabled
	117	ifeq ($(CONFIG_KMEMCHECK),y)
	118	KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
	119	endif
	120
0a6ef376 SR	121	# Stackpointer is addressed different for 32 bit and 64 bit x86
	122	sp-$(CONFIG_X86_32) := esp
	123	sp-$(CONFIG_X86_64) := rsp
	124
	125	# do binutils support CFI?
	126	cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
	127	# is .cfi_signal_frame supported too?
	128	cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
9e565292	129	cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1)
d7acb92f PA	130
	131	# does binutils support specific instructions?
	132	asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
ea4d26ae	133	avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
7056741f	134	avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)
d7acb92f	135
7056741f JK	136	KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr)
7056741f JK	137	KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr)
0a6ef376 SR	138
0a6ef376 SR	139	LDFLAGS := -m elf_$(UTS_MACHINE)
25dfeeb7 SR	140
25dfeeb7 SR	141	# Speed up the build
0a6ef376	142	KBUILD_CFLAGS += -pipe
25dfeeb7 SR	143	# Workaround for a gcc prelease that unfortunately was shipped in a suse release
	144	KBUILD_CFLAGS += -Wno-sign-compare
	145	#
	146	KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
	147	# prevent gcc from generating any FP code by mistake
	148	KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
c0e9afc0	149	KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
0a6ef376	150
0a6ef376 SR	151	KBUILD_CFLAGS += $(mflags-y)
	152	KBUILD_AFLAGS += $(mflags-y)
	153
3ce9e53e	154	archscripts: scripts_basic
6520fe55 PA	155	$(Q)$(MAKE) $(build)=arch/x86/tools relocs
6520fe55 PA	156
303395ac PA	157	###
	158	# Syscall table generation
	159
	160	archheaders:
	161	$(Q)$(MAKE) $(build)=arch/x86/syscalls all
	162
0a6ef376 SR	163	###
	164	# Kernel objects
	165
700efc1b EB	166	head-y := arch/x86/kernel/head_$(BITS).o
700efc1b EB	167	head-y += arch/x86/kernel/head$(BITS).o
0c51a965	168	head-y += arch/x86/kernel/head.o
0a6ef376 SR	169
	170	libs-y += arch/x86/lib/
	171
d1f0ae5e SR	172	# See arch/x86/Kbuild for content of core part of the kernel
d1f0ae5e SR	173	core-y += arch/x86/
0a6ef376 SR	174
	175	# drivers-y are linked after core-y
	176	drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
	177	drivers-$(CONFIG_PCI) += arch/x86/pci/
	178
	179	# must be linked after kernel/
	180	drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
	181
cf7700fe	182	# suspend and hibernation support
0a6ef376	183	drivers-$(CONFIG_PM) += arch/x86/power/
cf7700fe	184
0a6ef376	185	drivers-$(CONFIG_FB) += arch/x86/video/
0a6ef376 SR	186
	187	####
	188	# boot loader support. Several targets are kept for legacy purposes
	189
	190	boot := arch/x86/boot
	191
1648e4f8	192	BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
f9c5107c PA	193
f9c5107c PA	194	PHONY += bzImage $(BOOT_TARGETS)
0a6ef376 SR	195
	196	# Default kernel to build
	197	all: bzImage
	198
	199	# KBUILD_IMAGE specify target image being built
f9c5107c	200	KBUILD_IMAGE := $(boot)/bzImage
0a6ef376	201
f9c5107c	202	bzImage: vmlinux
ca0e9bad MH	203	ifeq ($(CONFIG_X86_DECODER_SELFTEST),y)
	204	$(Q)$(MAKE) $(build)=arch/x86/tools posttest
	205	endif
0a6ef376 SR	206	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
0a6ef376 SR	207	$(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
41b3eae6	208	$(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@
0a6ef376	209
f9c5107c PA	210	$(BOOT_TARGETS): vmlinux
f9c5107c PA	211	$(Q)$(MAKE) $(build)=$(boot) $@
0a6ef376	212
1648e4f8 PA	213	PHONY += install
	214	install:
	215	$(Q)$(MAKE) $(build)=$(boot) $@
	216
0a6ef376 SR	217	PHONY += vdso_install
	218	vdso_install:
	219	$(Q)$(MAKE) $(build)=arch/x86/vdso $@
	220
	221	archclean:
	222	$(Q)rm -rf $(objtree)/arch/i386
	223	$(Q)rm -rf $(objtree)/arch/x86_64
	224	$(Q)$(MAKE) $(clean)=$(boot)
b2d668da	225	$(Q)$(MAKE) $(clean)=arch/x86/tools
0a6ef376	226
fc58be75	227	PHONY += kvmconfig
46ff5387 BP	228	kvmconfig:
	229	$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
	230	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config arch/x86/configs/kvm_guest.config
	231	$(Q)yes "" \| $(MAKE) oldconfig
	232
0a6ef376	233	define archhelp
37f30e21 AK	234	echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
37f30e21 AK	235	echo ' install - Install kernel using'
caa27b66 SR	236	echo ' (your) ~/bin/$(INSTALLKERNEL) or'
caa27b66 SR	237	echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
37f30e21 AK	238	echo ' install to $$(INSTALL_PATH) and run lilo'
	239	echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
	240	echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
	241	echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
	242	echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
	243	echo ' bzdisk/fdimage*/isoimage also accept:'
	244	echo ' FDARGS="..." arguments for the booted kernel'
	245	echo ' FDINITRD=file initrd for the booted kernel'
46ff5387	246	echo ' kvmconfig - Enable additional options for guest kernel support'
0a6ef376	247	endef