aboutsummaryrefslogtreecommitdiffstats
path: root/arch/i386/Makefile
blob: 1c36ca332a96df3bc408aa2433f64cb5f051e8df (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
#
# i386/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" cleaning up for this architecture.
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
#
# 19990713  Artur Skawina <skawina@geocities.com>
#           Added '-march' and '-mpreferred-stack-boundary' support
#
# 20050320  Kianusch Sayah Karadji <kianusch@sk-tech.net>
#           Added support for GEODE CPU

LDFLAGS		:= -m elf_i386
OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
LDFLAGS_vmlinux :=
CHECKFLAGS	+= -D__i386__

CFLAGS += -pipe -msoft-float

# prevent gcc from keeping the stack 16 byte aligned
CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)

align := $(cc-option-align)
cflags-$(CONFIG_M386)		+= -march=i386
cflags-$(CONFIG_M486)		+= -march=i486
cflags-$(CONFIG_M586)		+= -march=i586
cflags-$(CONFIG_M586TSC)	+= -march=i586
cflags-$(CONFIG_M586MMX)	+= $(call cc-option,-march=pentium-mmx,-march=i586)
cflags-$(CONFIG_M686)		+= -march=i686
cflags-$(CONFIG_MPENTIUMII)	+= -march=i686 $(call cc-option,-mtune=pentium2)
cflags-$(CONFIG_MPENTIUMIII)	+= -march=i686 $(call cc-option,-mtune=pentium3)
cflags-$(CONFIG_MPENTIUMM)	+= -march=i686 $(call cc-option,-mtune=pentium3)
cflags-$(CONFIG_MPENTIUM4)	+= -march=i686 $(call cc-option,-mtune=pentium4)
cflags-$(CONFIG_MK6)		+= -march=k6
# Please note, that patches that add -march=athlon-xp and friends are pointless.
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7)		+= $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
cflags-$(CONFIG_MK8)		+= $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
cflags-$(CONFIG_MCRUSOE)	+= -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MEFFICEON)	+= -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MWINCHIPC6)	+= $(call cc-option,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP2)	+= $(call cc-option,-march=winchip2,-march=i586)
cflags-$(CONFIG_MWINCHIP3D)	+= $(call cc-option,-march=winchip2,-march=i586)
cflags-$(CONFIG_MCYRIXIII)	+= $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)

# AMD Elan support
cflags-$(CONFIG_X86_ELAN)	+= -march=i486

# Geode GX1 support
cflags-$(CONFIG_MGEODEGX1)		+= $(call cc-option,-march=pentium-mmx,-march=i486)

# -mregparm=3 works ok on gcc-3.0 and later
#
GCC_VERSION			:= $(call cc-version)
cflags-$(CONFIG_REGPARM) 	+= $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)

# Disable unit-at-a-time mode, it makes gcc use a lot more stack
# due to the lack of sharing of stacklots.
CFLAGS += $(call cc-option,-fno-unit-at-a-time)

CFLAGS += $(cflags-y)

# Default subarch .c files
mcore-y  := mach-default

# Voyager subarch support
mflags-$(CONFIG_X86_VOYAGER)	:= -Iinclude/asm-i386/mach-voyager
mcore-$(CONFIG_X86_VOYAGER)	:= mach-voyager

# VISWS subarch support
mflags-$(CONFIG_X86_VISWS)	:= -Iinclude/asm-i386/mach-visws
mcore-$(CONFIG_X86_VISWS)	:= mach-visws

# NUMAQ subarch support
mflags-$(CONFIG_X86_NUMAQ)	:= -Iinclude/asm-i386/mach-numaq
mcore-$(CONFIG_X86_NUMAQ)	:= mach-default

# BIGSMP subarch support
mflags-$(CONFIG_X86_BIGSMP)	:= -Iinclude/asm-i386/mach-bigsmp
mcore-$(CONFIG_X86_BIGSMP)	:= mach-default

#Summit subarch support
mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
mcore-$(CONFIG_X86_SUMMIT)  := mach-default

# generic subarchitecture
mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
mcore-$(CONFIG_X86_GENERICARCH) := mach-default
core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/

# ES7000 subarch support
mflags-$(CONFIG_X86_ES7000)	:= -Iinclude/asm-i386/mach-es7000
mcore-$(CONFIG_X86_ES7000)	:= mach-default
core-$(CONFIG_X86_ES7000)	:= arch/i386/mach-es7000/

# default subarch .h files
mflags-y += -Iinclude/asm-i386/mach-default

head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o

libs-y 					+= arch/i386/lib/
core-y					+= arch/i386/kernel/ \
					   arch/i386/mm/ \
					   arch/i386/$(mcore-y)/ \
					   arch/i386/crypto/
drivers-$(CONFIG_MATH_EMULATION)	+= arch/i386/math-emu/
drivers-$(CONFIG_PCI)			+= arch/i386/pci/
# must be linked after kernel/
drivers-$(CONFIG_OPROFILE)		+= arch/i386/oprofile/
drivers-$(CONFIG_PM)			+= arch/i386/power/

CFLAGS += $(mflags-y)
AFLAGS += $(mflags-y)

boot := arch/i386/boot

.PHONY: zImage bzImage compressed zlilo bzlilo \
	zdisk bzdisk fdimage fdimage144 fdimage288 install kernel_install

all: bzImage

# KBUILD_IMAGE specify target image being built
                    KBUILD_IMAGE := $(boot)/bzImage
zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage

zImage bzImage: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)

compressed: zImage

zlilo bzlilo: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo

zdisk bzdisk: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk

fdimage fdimage144 fdimage288: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@

install: vmlinux
install kernel_install:
	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install

prepare: include/asm-$(ARCH)/asm_offsets.h
CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h

arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
				   include/config/MARKER

include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
	$(call filechk,gen-asm-offsets)

archclean:
	$(Q)$(MAKE) $(clean)=arch/i386/boot

define archhelp
  echo  '* bzImage	- Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
  echo  '  install	- Install kernel using'
  echo  '		   (your) ~/bin/installkernel or'
  echo  '		   (distribution) /sbin/installkernel or'
  echo  '		   install to $$(INSTALL_PATH) and run lilo'
  echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
  echo  '  fdimage      - Create a boot floppy image'
endef

CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf