4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies. Remember to do have actions
6 # for "archclean" cleaning up for this architecture.
8 # This file is subject to the terms and conditions of the GNU General Public
9 # License. See the file "COPYING" in the main directory of this archive
12 # Copyright (C) 1994 by Linus Torvalds
14 # 19990713 Artur Skawina <skawina@geocities.com>
15 # Added '-march' and '-mpreferred-stack-boundary' support
17 # 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net>
18 # Added support for GEODE CPU
23 HAS_BIARCH := $(call cc-option-yn, -m32)
24 ifeq ($(HAS_BIARCH),y)
26 LD := $(LD) -m elf_i386
30 LDFLAGS := -m elf_i386
31 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
32 ifdef CONFIG_RELOCATABLE
33 LDFLAGS_vmlinux := --emit-relocs
35 CHECKFLAGS += -D__i386__
37 KBUILD_CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
39 # prevent gcc from keeping the stack 16 byte aligned
40 KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
42 # CPU-specific tuning. Anything which can be shared with UML should go here.
43 include $(srctree)/arch/i386/Makefile.cpu
45 # temporary until string.h is fixed
46 cflags-y += -ffreestanding
48 # this works around some issues with generating unwind tables in older gccs
49 # newer gccs do it by default
50 cflags-y += -maccumulate-outgoing-args
52 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
53 # a lot more stack due to the lack of sharing of stacklots:
54 KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
56 # do binutils support CFI?
57 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
58 KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
60 # is .cfi_signal_frame supported too?
61 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
62 KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
64 KBUILD_CFLAGS += $(cflags-y)
66 # Default subarch .c files
67 mcore-y := arch/x86/mach-default
69 # Voyager subarch support
70 mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
71 mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager
73 # VISWS subarch support
74 mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
75 mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws
77 # NUMAQ subarch support
78 mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq
79 mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default
81 # BIGSMP subarch support
82 mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp
83 mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default
85 #Summit subarch support
86 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
87 mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default
89 # generic subarchitecture
90 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-x86/mach-generic
91 mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default
92 core-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
94 # ES7000 subarch support
95 mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
96 mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default
97 core-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
99 # Xen paravirtualization support
100 core-$(CONFIG_XEN) += arch/x86/xen/
102 # lguest paravirtualization support
103 core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
105 # default subarch .h files
106 mflags-y += -Iinclude/asm-x86/mach-default
108 head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
110 libs-y += arch/x86/lib/
111 core-y += arch/x86/kernel/ \
115 drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
116 drivers-$(CONFIG_PCI) += arch/x86/pci/
117 # must be linked after kernel/
118 drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
119 drivers-$(CONFIG_PM) += arch/x86/power/
120 drivers-$(CONFIG_FB) += arch/x86/video/
122 KBUILD_CFLAGS += $(mflags-y)
123 KBUILD_AFLAGS += $(mflags-y)
125 boot := arch/x86/boot
127 PHONY += zImage bzImage compressed zlilo bzlilo \
128 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
132 # KBUILD_IMAGE specify target image being built
133 KBUILD_IMAGE := $(boot)/bzImage
134 zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
136 zImage bzImage: vmlinux
137 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
138 $(Q)mkdir -p $(objtree)/arch/i386/boot
139 $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
143 zlilo bzlilo: vmlinux
144 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
146 zdisk bzdisk: vmlinux
147 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
149 fdimage fdimage144 fdimage288 isoimage: vmlinux
150 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
153 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
156 $(Q)rm -rf $(objtree)/arch/i386/boot
157 $(Q)$(MAKE) $(clean)=arch/x86/boot
160 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
161 echo ' install - Install kernel using'
162 echo ' (your) ~/bin/installkernel or'
163 echo ' (distribution) /sbin/installkernel or'
164 echo ' install to $$(INSTALL_PATH) and run lilo'
165 echo ' bzdisk - Create a boot floppy in /dev/fd0'
166 echo ' fdimage - Create a boot floppy image'
167 echo ' isoimage - Create a boot CD-ROM image'
170 CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
171 arch/$(ARCH)/boot/image.iso \
172 arch/$(ARCH)/boot/mtools.conf