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Sam Ravnborg74b469f2007-10-25 19:42:04 +02001# Unified Makefile for i386 and x86_64
2
Sam Ravnborg2266cfd2007-10-25 20:31:19 +02003# select defconfig based on actual architecture
Sam Ravnborgd746d642007-11-12 20:14:19 +01004ifeq ($(ARCH),x86)
5 KBUILD_DEFCONFIG := i386_defconfig
6else
7 KBUILD_DEFCONFIG := $(ARCH)_defconfig
8endif
Sam Ravnborg2266cfd2007-10-25 20:31:19 +02009
Avi Kivityedf88412007-12-16 11:02:48 +020010core-$(CONFIG_KVM) += arch/x86/kvm/
11
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010012# BITS is used as extension for files which are available in a 32 bit
13# and a 64 bit version to simplify shared Makefiles.
14# e.g.: obj-y += foo_$(BITS).o
15export BITS
Sam Ravnborg74b469f2007-10-25 19:42:04 +020016
Sam Ravnborgd746d642007-11-12 20:14:19 +010017ifeq ($(CONFIG_X86_32),y)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010018 BITS := 32
Andreas Herrmann8c6531f2007-11-19 23:58:57 +010019 UTS_MACHINE := i386
Sam Ravnborg4ba7e5c2008-01-30 13:32:23 +010020 CHECKFLAGS += -D__i386__
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010021
Sam Ravnborg4ba7e5c2008-01-30 13:32:23 +010022 biarch := $(call cc-option,-m32)
23 KBUILD_AFLAGS += $(biarch)
24 KBUILD_CFLAGS += $(biarch)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010025
26 ifdef CONFIG_RELOCATABLE
27 LDFLAGS_vmlinux := --emit-relocs
28 endif
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010029
30 KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
31
32 # prevent gcc from keeping the stack 16 byte aligned
33 KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
34
35 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
36 # a lot more stack due to the lack of sharing of stacklots:
37 KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
38 echo $(call cc-option,-fno-unit-at-a-time); fi ;)
39
40 # CPU-specific tuning. Anything which can be shared with UML should go here.
41 include $(srctree)/arch/x86/Makefile_32.cpu
42 KBUILD_CFLAGS += $(cflags-y)
43
44 # temporary until string.h is fixed
45 KBUILD_CFLAGS += -ffreestanding
Sam Ravnborg74b469f2007-10-25 19:42:04 +020046else
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010047 BITS := 64
Andreas Herrmann8c6531f2007-11-19 23:58:57 +010048 UTS_MACHINE := x86_64
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010049 CHECKFLAGS += -D__x86_64__ -m64
50
51 KBUILD_AFLAGS += -m64
52 KBUILD_CFLAGS += -m64
53
54 # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
55 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
56 cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
57
58 cflags-$(CONFIG_MCORE2) += \
59 $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
60 cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
61 KBUILD_CFLAGS += $(cflags-y)
62
63 KBUILD_CFLAGS += -mno-red-zone
64 KBUILD_CFLAGS += -mcmodel=kernel
65
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010066 # -funit-at-a-time shrinks the kernel .text considerably
67 # unfortunately it makes reading oopses harder.
68 KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
69
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010070 # this works around some issues with generating unwind tables in older gccs
71 # newer gccs do it by default
72 KBUILD_CFLAGS += -maccumulate-outgoing-args
73
74 stackp := $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh
75 stackp-$(CONFIG_CC_STACKPROTECTOR) := $(shell $(stackp) \
76 "$(CC)" -fstack-protector )
77 stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(stackp) \
78 "$(CC)" -fstack-protector-all )
79
80 KBUILD_CFLAGS += $(stackp-y)
Sam Ravnborg74b469f2007-10-25 19:42:04 +020081endif
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010082
83# Stackpointer is addressed different for 32 bit and 64 bit x86
84sp-$(CONFIG_X86_32) := esp
85sp-$(CONFIG_X86_64) := rsp
86
87# do binutils support CFI?
88cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
89# is .cfi_signal_frame supported too?
90cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
91KBUILD_AFLAGS += $(cfi) $(cfi-sigframe)
92KBUILD_CFLAGS += $(cfi) $(cfi-sigframe)
93
94LDFLAGS := -m elf_$(UTS_MACHINE)
Sam Ravnborg25dfeeb2008-01-30 13:32:21 +010095
96# Speed up the build
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010097KBUILD_CFLAGS += -pipe
Sam Ravnborg25dfeeb2008-01-30 13:32:21 +010098# Workaround for a gcc prelease that unfortunately was shipped in a suse release
99KBUILD_CFLAGS += -Wno-sign-compare
100#
101KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
102# prevent gcc from generating any FP code by mistake
103KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100104
105###
106# Sub architecture support
107# fcore-y is linked before mcore-y files.
108
109# Default subarch .c files
110mcore-y := arch/x86/mach-default/
111
112# Voyager subarch support
113mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
114mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/
115
116# VISWS subarch support
117mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
118mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws/
119
120# NUMAQ subarch support
121mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq
122mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default/
123
124# BIGSMP subarch support
125mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp
126mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default/
127
128#Summit subarch support
129mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
130mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default/
131
132# generic subarchitecture
133mflags-$(CONFIG_X86_GENERICARCH):= -Iinclude/asm-x86/mach-generic
134fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
135mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/
136
137
138# ES7000 subarch support
139mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
140fcore-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
141mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default/
142
Florian Fainelli5e3a77e2008-01-30 13:33:36 +0100143# RDC R-321x subarch support
144mflags-$(CONFIG_X86_RDC321X) := -Iinclude/asm-x86/mach-rdc321x
Steven Rostedte3c2a992008-02-01 00:13:58 -0500145mcore-$(CONFIG_X86_RDC321X) := arch/x86/mach-default/
Florian Fainelli5e3a77e2008-01-30 13:33:36 +0100146core-$(CONFIG_X86_RDC321X) += arch/x86/mach-rdc321x/
147
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100148# default subarch .h files
149mflags-y += -Iinclude/asm-x86/mach-default
150
151# 64 bit does not support subarch support - clear sub arch variables
152fcore-$(CONFIG_X86_64) :=
153mcore-$(CONFIG_X86_64) :=
154mflags-$(CONFIG_X86_64) :=
155
156KBUILD_CFLAGS += $(mflags-y)
157KBUILD_AFLAGS += $(mflags-y)
158
159###
160# Kernel objects
161
162head-y := arch/x86/kernel/head_$(BITS).o
163head-$(CONFIG_X86_64) += arch/x86/kernel/head64.o
164head-y += arch/x86/kernel/init_task.o
165
166libs-y += arch/x86/lib/
167
168# Sub architecture files that needs linking first
169core-y += $(fcore-y)
170
171# Xen paravirtualization support
172core-$(CONFIG_XEN) += arch/x86/xen/
173
174# lguest paravirtualization support
175core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
176
177core-y += arch/x86/kernel/
178core-y += arch/x86/mm/
179
180# Remaining sub architecture files
181core-y += $(mcore-y)
182
183core-y += arch/x86/crypto/
184core-y += arch/x86/vdso/
185core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/
186
187# drivers-y are linked after core-y
188drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
189drivers-$(CONFIG_PCI) += arch/x86/pci/
190
191# must be linked after kernel/
192drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
193
Rafael J. Wysockicf7700f2008-02-09 23:24:09 +0100194# suspend and hibernation support
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100195drivers-$(CONFIG_PM) += arch/x86/power/
Rafael J. Wysockicf7700f2008-02-09 23:24:09 +0100196
197ifeq ($(CONFIG_X86_32),y)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100198drivers-$(CONFIG_FB) += arch/x86/video/
199endif
200
201####
202# boot loader support. Several targets are kept for legacy purposes
203
204boot := arch/x86/boot
205
206PHONY += zImage bzImage compressed zlilo bzlilo \
207 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
208
209# Default kernel to build
210all: bzImage
211
212# KBUILD_IMAGE specify target image being built
213 KBUILD_IMAGE := $(boot)/bzImage
214zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
215
216zImage bzImage: vmlinux
217 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
218 $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
219 $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/bzImage
220
221compressed: zImage
222
223zlilo bzlilo: vmlinux
224 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
225
226zdisk bzdisk: vmlinux
227 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
228
229fdimage fdimage144 fdimage288 isoimage: vmlinux
230 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
231
232install: vdso_install
233 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
234
235PHONY += vdso_install
236vdso_install:
237 $(Q)$(MAKE) $(build)=arch/x86/vdso $@
238
239archclean:
240 $(Q)rm -rf $(objtree)/arch/i386
241 $(Q)rm -rf $(objtree)/arch/x86_64
242 $(Q)$(MAKE) $(clean)=$(boot)
243
244define archhelp
Andi Kleen37f30e22008-01-30 13:32:49 +0100245 echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
246 echo ' install - Install kernel using'
247 echo ' (your) ~/bin/installkernel or'
248 echo ' (distribution) /sbin/installkernel or'
249 echo ' install to $$(INSTALL_PATH) and run lilo'
250 echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
251 echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
252 echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
253 echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
254 echo ' bzdisk/fdimage*/isoimage also accept:'
255 echo ' FDARGS="..." arguments for the booted kernel'
256 echo ' FDINITRD=file initrd for the booted kernel'
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100257endef
258
259CLEAN_FILES += arch/x86/boot/fdimage \
260 arch/x86/boot/image.iso \
261 arch/x86/boot/mtools.conf