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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# i386/Makefile
3#
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.
7#
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
10# for more details.
11#
12# Copyright (C) 1994 by Linus Torvalds
13#
14# 19990713 Artur Skawina <skawina@geocities.com>
15# Added '-march' and '-mpreferred-stack-boundary' support
16#
Kianusch Sayah Karadji47137412005-05-05 16:16:17 -070017# 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018# Added support for GEODE CPU
19
H. Peter Anvind0e7feb2005-06-23 00:08:09 -070020HAS_BIARCH := $(call cc-option-yn, -m32)
21ifeq ($(HAS_BIARCH),y)
22AS := $(AS) --32
23LD := $(LD) -m elf_i386
24CC := $(CC) -m32
25endif
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027LDFLAGS := -m elf_i386
28OBJCOPYFLAGS := -O binary -R .note -R .comment -S
Eric W. Biederman968de4f2006-12-07 02:14:04 +010029ifdef CONFIG_RELOCATABLE
30LDFLAGS_vmlinux := --emit-relocs
31endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070032CHECKFLAGS += -D__i386__
33
Ingo Molnar25165122007-02-22 09:38:22 +010034CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36# prevent gcc from keeping the stack 16 byte aligned
Linus Torvaldsb4652232007-05-17 20:18:11 -070037CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Paolo 'Blaisorblade' Giarrusso96d55b82005-10-30 15:00:07 -080039# CPU-specific tuning. Anything which can be shared with UML should go here.
40include $(srctree)/arch/i386/Makefile.cpu
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
Andi Kleen6edfba12006-03-25 16:29:49 +010042# temporary until string.h is fixed
43cflags-y += -ffreestanding
44
Andi Kleencdfce1f2006-10-21 18:37:01 +020045# this works around some issues with generating unwind tables in older gccs
46# newer gccs do it by default
47cflags-y += -maccumulate-outgoing-args
48
Ingo Molnar9ab34fe2006-01-14 13:21:29 -080049# 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:
51CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Andi Kleene2414912006-09-26 10:52:30 +020053# do binutils support CFI?
54cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
55AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
56
Jan Beulichadf14232006-09-26 10:52:41 +020057# is .cfi_signal_frame supported too?
Andrew Mortonda8604c2006-10-21 18:37:01 +020058cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
59AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
Jan Beulichadf14232006-09-26 10:52:41 +020060
Linus Torvalds1da177e2005-04-16 15:20:36 -070061CFLAGS += $(cflags-y)
62
63# Default subarch .c files
64mcore-y := mach-default
65
66# Voyager subarch support
67mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
68mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
69
70# VISWS subarch support
71mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-i386/mach-visws
72mcore-$(CONFIG_X86_VISWS) := mach-visws
73
74# NUMAQ subarch support
75mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-i386/mach-numaq
76mcore-$(CONFIG_X86_NUMAQ) := mach-default
77
78# BIGSMP subarch support
79mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-i386/mach-bigsmp
80mcore-$(CONFIG_X86_BIGSMP) := mach-default
81
82#Summit subarch support
83mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
84mcore-$(CONFIG_X86_SUMMIT) := mach-default
85
86# generic subarchitecture
87mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
88mcore-$(CONFIG_X86_GENERICARCH) := mach-default
89core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
90
91# ES7000 subarch support
92mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000
93mcore-$(CONFIG_X86_ES7000) := mach-default
94core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/
95
96# default subarch .h files
97mflags-y += -Iinclude/asm-i386/mach-default
98
99head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
100
101libs-y += arch/i386/lib/
102core-y += arch/i386/kernel/ \
103 arch/i386/mm/ \
104 arch/i386/$(mcore-y)/ \
105 arch/i386/crypto/
106drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
107drivers-$(CONFIG_PCI) += arch/i386/pci/
108# must be linked after kernel/
109drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/
110drivers-$(CONFIG_PM) += arch/i386/power/
111
112CFLAGS += $(mflags-y)
113AFLAGS += $(mflags-y)
114
115boot := arch/i386/boot
116
Paul Smith4f193362006-03-05 17:14:10 -0500117PHONY += zImage bzImage compressed zlilo bzlilo \
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800118 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119
120all: bzImage
121
122# KBUILD_IMAGE specify target image being built
123 KBUILD_IMAGE := $(boot)/bzImage
124zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
125
126zImage bzImage: vmlinux
127 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
128
129compressed: zImage
130
131zlilo bzlilo: vmlinux
132 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
133
134zdisk bzdisk: vmlinux
135 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
136
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800137fdimage fdimage144 fdimage288 isoimage: vmlinux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
139
H. Peter Anvin0d20bab2006-01-07 17:38:39 -0800140install:
Sam Ravnborg2cacb3d2005-04-30 16:51:42 -0700141 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143archclean:
144 $(Q)$(MAKE) $(clean)=arch/i386/boot
145
146define archhelp
147 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
148 echo ' install - Install kernel using'
149 echo ' (your) ~/bin/installkernel or'
150 echo ' (distribution) /sbin/installkernel or'
151 echo ' install to $$(INSTALL_PATH) and run lilo'
152 echo ' bzdisk - Create a boot floppy in /dev/fd0'
153 echo ' fdimage - Create a boot floppy image'
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800154 echo ' isoimage - Create a boot CD-ROM image'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155endef
156
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800157CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
158 arch/$(ARCH)/boot/image.iso \
159 arch/$(ARCH)/boot/mtools.conf