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 LDFLAGS := -m elf_i386
21 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
23 CHECKFLAGS += -D__i386__
25 CFLAGS += -pipe -msoft-float -m32 -fno-builtin-sprintf -fno-builtin-log2 -fno-builtin-puts
27 # prevent gcc from keeping the stack 16 byte aligned
28 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
30 align := $(cc-option-align)
31 cflags-$(CONFIG_M386) += -march=i386
32 cflags-$(CONFIG_M486) += -march=i486
33 cflags-$(CONFIG_M586) += -march=i586
34 cflags-$(CONFIG_M586TSC) += -march=i586
35 cflags-$(CONFIG_M586MMX) += $(call cc-option,-march=pentium-mmx,-march=i586)
36 #cflags-$(CONFIG_M686) += -march=i686 -mtune=pentium4
37 cflags-$(CONFIG_M686) += -march=i686 -mcpu=pentium4
38 cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call cc-option,-mtune=pentium2)
39 cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call cc-option,-mtune=pentium3)
40 cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call cc-option,-mtune=pentium3)
41 #cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call cc-option,-mtune=pentium4)
42 cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call cc-option,-march=pentium4)
43 cflags-$(CONFIG_MK6) += -march=k6
44 # Please note, that patches that add -march=athlon-xp and friends are pointless.
45 # They make zero difference whatsosever to performance at this time.
46 cflags-$(CONFIG_MK7) += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
47 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
48 cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
49 cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
50 cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
51 cflags-$(CONFIG_MWINCHIP2) += $(call cc-option,-march=winchip2,-march=i586)
52 cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
53 cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
54 cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
57 cflags-$(CONFIG_X86_ELAN) += -march=i486
60 cflags-$(CONFIG_MGEODEGX1) += $(call cc-option,-march=pentium-mmx,-march=i486)
62 # -mregparm=3 works ok on gcc-3.0 and later
64 GCC_VERSION := $(call cc-version)
65 cflags-$(CONFIG_REGPARM) += $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
67 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
68 # due to the lack of sharing of stacklots.
69 CFLAGS += $(call cc-option,-fno-unit-at-a-time)
73 # Default subarch .c files
74 mcore-y := mach-default
76 # Voyager subarch support
77 mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
78 mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
80 # VISWS subarch support
81 mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-i386/mach-visws
82 mcore-$(CONFIG_X86_VISWS) := mach-visws
84 # NUMAQ subarch support
85 mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-i386/mach-numaq
86 mcore-$(CONFIG_X86_NUMAQ) := mach-default
88 # BIGSMP subarch support
89 mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-i386/mach-bigsmp
90 mcore-$(CONFIG_X86_BIGSMP) := mach-default
92 #Summit subarch support
93 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
94 mcore-$(CONFIG_X86_SUMMIT) := mach-default
96 # generic subarchitecture
97 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
98 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
99 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
101 # ES7000 subarch support
102 mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000
103 mcore-$(CONFIG_X86_ES7000) := mach-default
104 core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/
106 # default subarch .h files
107 mflags-y += -Iinclude/asm-i386/mach-default
109 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
111 libs-y += arch/i386/lib/
112 core-y += arch/i386/kernel/ \
114 arch/i386/$(mcore-y)/ \
116 drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
117 drivers-$(CONFIG_PCI) += arch/i386/pci/
118 # must be linked after kernel/
119 drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
120 drivers-$(CONFIG_PM) += arch/i386/power/
122 CFLAGS += $(mflags-y)
123 AFLAGS += $(mflags-y) -m32
125 boot := arch/i386/boot
127 .PHONY: zImage bzImage compressed zlilo bzlilo \
128 zdisk bzdisk fdimage fdimage144 fdimage288 install kernel_install
132 # KBUILD_IMAGE specify target image being built
133 KBUILD_IMAGE := $(boot)/bzImage
134 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
136 zImage bzImage: vmlinux
137 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
141 zlilo bzlilo: vmlinux
142 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
144 zdisk bzdisk: vmlinux
145 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
147 fdimage fdimage144 fdimage288: vmlinux
148 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
151 install kernel_install:
152 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
154 prepare: include/asm-$(ARCH)/asm_offsets.h
155 CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h
157 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
158 include/config/MARKER
160 include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
161 $(call filechk,gen-asm-offsets)
164 $(Q)$(MAKE) $(clean)=arch/i386/boot
167 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
168 echo ' install - Install kernel using'
169 echo ' (your) ~/bin/installkernel or'
170 echo ' (distribution) /sbin/installkernel or'
171 echo ' install to $$(INSTALL_PATH) and run lilo'
172 echo ' bzdisk - Create a boot floppy in /dev/fd0'
173 echo ' fdimage - Create a boot floppy image'
176 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf