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
20 HAS_BIARCH := $(call cc-option-yn, -m32)
21 ifeq ($(HAS_BIARCH),y)
23 LD := $(LD) -m elf_i386
27 LDFLAGS := -m elf_i386
28 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
29 ifdef CONFIG_RELOCATABLE
30 LDFLAGS_vmlinux := --emit-relocs
32 CHECKFLAGS += -D__i386__
34 CFLAGS += -pipe -msoft-float -mregparm=3
36 # prevent gcc from keeping the stack 16 byte aligned
37 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
39 # CPU-specific tuning. Anything which can be shared with UML should go here.
40 include $(srctree)/arch/i386/Makefile.cpu
42 # temporary until string.h is fixed
43 cflags-y += -ffreestanding
45 # this works around some issues with generating unwind tables in older gccs
46 # newer gccs do it by default
47 cflags-y += -maccumulate-outgoing-args
49 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
50 # a lot more stack due to the lack of sharing of stacklots:
51 CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
53 # do binutils support CFI?
54 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
55 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
57 # is .cfi_signal_frame supported too?
58 cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
59 AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
63 cppflags-$(CONFIG_XEN) += \
64 -D__XEN_INTERFACE_VERSION__=$(CONFIG_XEN_INTERFACE_VERSION)
66 CPPFLAGS += $(cppflags-y)
68 # Default subarch .c files
69 mcore-y := mach-default
71 # Voyager subarch support
72 mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
73 mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
75 # VISWS subarch support
76 mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-i386/mach-visws
77 mcore-$(CONFIG_X86_VISWS) := mach-visws
79 # NUMAQ subarch support
80 mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-i386/mach-numaq
81 mcore-$(CONFIG_X86_NUMAQ) := mach-default
83 # BIGSMP subarch support
84 mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-i386/mach-bigsmp
85 mcore-$(CONFIG_X86_BIGSMP) := mach-default
87 #Summit subarch support
88 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
89 mcore-$(CONFIG_X86_SUMMIT) := mach-default
92 mflags-$(CONFIG_X86_XEN) := -Iinclude/asm-i386/mach-xen
93 mcore-$(CONFIG_X86_XEN) := mach-xen
95 # generic subarchitecture
96 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
97 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
98 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
100 # ES7000 subarch support
101 mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000
102 mcore-$(CONFIG_X86_ES7000) := mach-default
103 core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/
105 # default subarch .h files
106 mflags-y += -Iinclude/asm-i386/mach-default
108 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
110 libs-y += arch/i386/lib/
111 core-y += arch/i386/kernel/ \
113 arch/i386/$(mcore-y)/ \
115 drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
116 drivers-$(CONFIG_PCI) += arch/i386/pci/
117 # must be linked after kernel/
118 drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
119 drivers-$(CONFIG_PM) += arch/i386/power/
121 CFLAGS += $(mflags-y)
122 AFLAGS += $(mflags-y)
124 boot := arch/i386/boot
126 PHONY += zImage bzImage compressed zlilo bzlilo \
127 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
130 CPPFLAGS := -Iinclude$(if $(KBUILD_SRC),2)/asm/mach-xen $(CPPFLAGS)
131 head-y := arch/i386/kernel/head-xen.o arch/i386/kernel/init_task-xen.o
132 boot := arch/i386/boot-xen
137 $(Q)$(MAKE) $(build)=$(boot) $@
140 $(Q)$(MAKE) $(build)=$(boot) XENGUEST=$(XENGUEST) $@
144 # KBUILD_IMAGE specify target image being built
145 KBUILD_IMAGE := $(boot)/bzImage
146 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
148 zImage bzImage: vmlinux
149 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
153 zlilo bzlilo: vmlinux
154 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
156 zdisk bzdisk: vmlinux
157 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
159 fdimage fdimage144 fdimage288 isoimage: vmlinux
160 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
163 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
167 $(Q)$(MAKE) $(clean)=arch/i386/boot
170 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
171 echo ' install - Install kernel using'
172 echo ' (your) ~/bin/installkernel or'
173 echo ' (distribution) /sbin/installkernel or'
174 echo ' install to $$(INSTALL_PATH) and run lilo'
175 echo ' bzdisk - Create a boot floppy in /dev/fd0'
176 echo ' fdimage - Create a boot floppy image'
177 echo ' isoimage - Create a boot CD-ROM image'
180 CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
181 arch/$(ARCH)/boot/image.iso \
182 arch/$(ARCH)/boot/mtools.conf
183 CLEAN_FILES += vmlinuz vmlinux-stripped