Sam Ravnborg | 74b469f | 2007-10-25 19:42:04 +0200 | [diff] [blame] | 1 | # Unified Makefile for i386 and x86_64 |
| 2 | |
Sam Ravnborg | 2266cfd | 2007-10-25 20:31:19 +0200 | [diff] [blame] | 3 | # select defconfig based on actual architecture |
Sam Ravnborg | d746d64 | 2007-11-12 20:14:19 +0100 | [diff] [blame] | 4 | ifeq ($(ARCH),x86) |
| 5 | KBUILD_DEFCONFIG := i386_defconfig |
| 6 | else |
| 7 | KBUILD_DEFCONFIG := $(ARCH)_defconfig |
| 8 | endif |
Sam Ravnborg | 2266cfd | 2007-10-25 20:31:19 +0200 | [diff] [blame] | 9 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 10 | core-$(CONFIG_KVM) += arch/x86/kvm/ |
| 11 | |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 12 | # 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_$(BITS).o |
| 15 | export BITS |
Sam Ravnborg | 74b469f | 2007-10-25 19:42:04 +0200 | [diff] [blame] | 16 | |
Sam Ravnborg | d746d64 | 2007-11-12 20:14:19 +0100 | [diff] [blame] | 17 | ifeq ($(CONFIG_X86_32),y) |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 18 | BITS := 32 |
Andreas Herrmann | 8c6531f | 2007-11-19 23:58:57 +0100 | [diff] [blame] | 19 | UTS_MACHINE := i386 |
Sam Ravnborg | 4ba7e5c | 2008-01-30 13:32:23 +0100 | [diff] [blame] | 20 | CHECKFLAGS += -D__i386__ |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 21 | |
Sam Ravnborg | 4ba7e5c | 2008-01-30 13:32:23 +0100 | [diff] [blame] | 22 | biarch := $(call cc-option,-m32) |
| 23 | KBUILD_AFLAGS += $(biarch) |
| 24 | KBUILD_CFLAGS += $(biarch) |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 25 | |
| 26 | ifdef CONFIG_RELOCATABLE |
| 27 | LDFLAGS_vmlinux := --emit-relocs |
| 28 | endif |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 29 | |
| 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 += $(cflags-y) |
| 43 | |
| 44 | # temporary until string.h is fixed |
| 45 | KBUILD_CFLAGS += -ffreestanding |
Sam Ravnborg | 74b469f | 2007-10-25 19:42:04 +0200 | [diff] [blame] | 46 | else |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 47 | BITS := 64 |
Andreas Herrmann | 8c6531f | 2007-11-19 23:58:57 +0100 | [diff] [blame] | 48 | UTS_MACHINE := x86_64 |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 49 | CHECKFLAGS += -D__x86_64__ -m64 |
| 50 | |
| 51 | KBUILD_AFLAGS += -m64 |
| 52 | KBUILD_CFLAGS += -m64 |
| 53 | |
| 54 | # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu) |
| 55 | cflags-$(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 Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 66 | # -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 Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 70 | # 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 |
Tejun Heo | 5d707e9 | 2009-02-09 22:17:39 +0900 | [diff] [blame^] | 73 | endif |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 74 | |
Tejun Heo | 5d707e9 | 2009-02-09 22:17:39 +0900 | [diff] [blame^] | 75 | ifdef CONFIG_CC_STACKPROTECTOR |
| 76 | cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh |
| 77 | ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC)),y) |
| 78 | stackp-y := -fstack-protector |
| 79 | stackp-$(CONFIG_CC_STACKPROTECTOR_ALL) += -fstack-protector-all |
| 80 | KBUILD_CFLAGS += $(stackp-y) |
| 81 | else |
| 82 | $(warning stack protector enabled but no compiler support) |
| 83 | endif |
Sam Ravnborg | 74b469f | 2007-10-25 19:42:04 +0200 | [diff] [blame] | 84 | endif |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 85 | |
| 86 | # Stackpointer is addressed different for 32 bit and 64 bit x86 |
| 87 | sp-$(CONFIG_X86_32) := esp |
| 88 | sp-$(CONFIG_X86_64) := rsp |
| 89 | |
| 90 | # do binutils support CFI? |
| 91 | cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1) |
| 92 | # is .cfi_signal_frame supported too? |
| 93 | cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1) |
| 94 | KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) |
| 95 | KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) |
| 96 | |
| 97 | LDFLAGS := -m elf_$(UTS_MACHINE) |
Sam Ravnborg | 25dfeeb | 2008-01-30 13:32:21 +0100 | [diff] [blame] | 98 | |
| 99 | # Speed up the build |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 100 | KBUILD_CFLAGS += -pipe |
Sam Ravnborg | 25dfeeb | 2008-01-30 13:32:21 +0100 | [diff] [blame] | 101 | # Workaround for a gcc prelease that unfortunately was shipped in a suse release |
| 102 | KBUILD_CFLAGS += -Wno-sign-compare |
| 103 | # |
| 104 | KBUILD_CFLAGS += -fno-asynchronous-unwind-tables |
| 105 | # prevent gcc from generating any FP code by mistake |
| 106 | KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 107 | |
| 108 | ### |
| 109 | # Sub architecture support |
| 110 | # fcore-y is linked before mcore-y files. |
| 111 | |
| 112 | # Default subarch .c files |
| 113 | mcore-y := arch/x86/mach-default/ |
| 114 | |
| 115 | # Voyager subarch support |
Al Viro | bb89855 | 2008-08-17 21:05:42 -0400 | [diff] [blame] | 116 | mflags-$(CONFIG_X86_VOYAGER) := -Iarch/x86/include/asm/mach-voyager |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 117 | mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager/ |
| 118 | |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 119 | # generic subarchitecture |
Al Viro | bb89855 | 2008-08-17 21:05:42 -0400 | [diff] [blame] | 120 | mflags-$(CONFIG_X86_GENERICARCH):= -Iarch/x86/include/asm/mach-generic |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 121 | fcore-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/ |
| 122 | mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default/ |
| 123 | |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 124 | # default subarch .h files |
Al Viro | bb89855 | 2008-08-17 21:05:42 -0400 | [diff] [blame] | 125 | mflags-y += -Iarch/x86/include/asm/mach-default |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 126 | |
| 127 | # 64 bit does not support subarch support - clear sub arch variables |
| 128 | fcore-$(CONFIG_X86_64) := |
| 129 | mcore-$(CONFIG_X86_64) := |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 130 | |
| 131 | KBUILD_CFLAGS += $(mflags-y) |
| 132 | KBUILD_AFLAGS += $(mflags-y) |
| 133 | |
| 134 | ### |
| 135 | # Kernel objects |
| 136 | |
Eric W. Biederman | 700efc1 | 2008-02-23 09:58:20 +0100 | [diff] [blame] | 137 | head-y := arch/x86/kernel/head_$(BITS).o |
| 138 | head-y += arch/x86/kernel/head$(BITS).o |
Huang, Ying | 0c51a96 | 2008-06-02 14:26:23 +0800 | [diff] [blame] | 139 | head-y += arch/x86/kernel/head.o |
Eric W. Biederman | 700efc1 | 2008-02-23 09:58:20 +0100 | [diff] [blame] | 140 | head-y += arch/x86/kernel/init_task.o |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 141 | |
| 142 | libs-y += arch/x86/lib/ |
| 143 | |
| 144 | # Sub architecture files that needs linking first |
| 145 | core-y += $(fcore-y) |
| 146 | |
| 147 | # Xen paravirtualization support |
| 148 | core-$(CONFIG_XEN) += arch/x86/xen/ |
| 149 | |
| 150 | # lguest paravirtualization support |
| 151 | core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/ |
| 152 | |
| 153 | core-y += arch/x86/kernel/ |
| 154 | core-y += arch/x86/mm/ |
| 155 | |
| 156 | # Remaining sub architecture files |
| 157 | core-y += $(mcore-y) |
| 158 | |
| 159 | core-y += arch/x86/crypto/ |
| 160 | core-y += arch/x86/vdso/ |
| 161 | core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/ |
| 162 | |
| 163 | # drivers-y are linked after core-y |
| 164 | drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/ |
| 165 | drivers-$(CONFIG_PCI) += arch/x86/pci/ |
| 166 | |
| 167 | # must be linked after kernel/ |
| 168 | drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/ |
| 169 | |
Rafael J. Wysocki | cf7700f | 2008-02-09 23:24:09 +0100 | [diff] [blame] | 170 | # suspend and hibernation support |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 171 | drivers-$(CONFIG_PM) += arch/x86/power/ |
Rafael J. Wysocki | cf7700f | 2008-02-09 23:24:09 +0100 | [diff] [blame] | 172 | |
| 173 | ifeq ($(CONFIG_X86_32),y) |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 174 | drivers-$(CONFIG_FB) += arch/x86/video/ |
| 175 | endif |
| 176 | |
| 177 | #### |
| 178 | # boot loader support. Several targets are kept for legacy purposes |
| 179 | |
| 180 | boot := arch/x86/boot |
| 181 | |
| 182 | PHONY += zImage bzImage compressed zlilo bzlilo \ |
| 183 | zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install |
| 184 | |
| 185 | # Default kernel to build |
| 186 | all: bzImage |
| 187 | |
| 188 | # KBUILD_IMAGE specify target image being built |
| 189 | KBUILD_IMAGE := $(boot)/bzImage |
Jan Beulich | 41b3eae | 2008-04-22 16:29:26 +0100 | [diff] [blame] | 190 | zImage zlilo zdisk: KBUILD_IMAGE := $(boot)/zImage |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 191 | |
| 192 | zImage bzImage: vmlinux |
| 193 | $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE) |
| 194 | $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot |
Jan Beulich | 41b3eae | 2008-04-22 16:29:26 +0100 | [diff] [blame] | 195 | $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@ |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 196 | |
| 197 | compressed: zImage |
| 198 | |
| 199 | zlilo bzlilo: vmlinux |
| 200 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo |
| 201 | |
| 202 | zdisk bzdisk: vmlinux |
| 203 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk |
| 204 | |
| 205 | fdimage fdimage144 fdimage288 isoimage: vmlinux |
| 206 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@ |
| 207 | |
Sam Ravnborg | 3f85d63 | 2008-02-16 12:36:10 +0100 | [diff] [blame] | 208 | install: |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 209 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install |
| 210 | |
| 211 | PHONY += vdso_install |
| 212 | vdso_install: |
| 213 | $(Q)$(MAKE) $(build)=arch/x86/vdso $@ |
| 214 | |
| 215 | archclean: |
| 216 | $(Q)rm -rf $(objtree)/arch/i386 |
| 217 | $(Q)rm -rf $(objtree)/arch/x86_64 |
| 218 | $(Q)$(MAKE) $(clean)=$(boot) |
| 219 | |
| 220 | define archhelp |
Andi Kleen | 37f30e2 | 2008-01-30 13:32:49 +0100 | [diff] [blame] | 221 | echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)' |
| 222 | echo ' install - Install kernel using' |
| 223 | echo ' (your) ~/bin/installkernel or' |
| 224 | echo ' (distribution) /sbin/installkernel or' |
| 225 | echo ' install to $$(INSTALL_PATH) and run lilo' |
| 226 | echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)' |
| 227 | echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)' |
| 228 | echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)' |
| 229 | echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)' |
| 230 | echo ' bzdisk/fdimage*/isoimage also accept:' |
| 231 | echo ' FDARGS="..." arguments for the booted kernel' |
| 232 | echo ' FDINITRD=file initrd for the booted kernel' |
Sam Ravnborg | 0a6ef37 | 2008-01-30 13:32:20 +0100 | [diff] [blame] | 233 | endef |
| 234 | |
| 235 | CLEAN_FILES += arch/x86/boot/fdimage \ |
| 236 | arch/x86/boot/image.iso \ |
| 237 | arch/x86/boot/mtools.conf |