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
|
#
# 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" and "archdep" for cleaning up and making dependencies 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
#
LD=$(CROSS_COMPILE)ld -m elf_i386
OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
LDFLAGS=-e stext
LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS)
CFLAGS += -pipe
# prevent gcc from keeping the stack 16 byte aligned
CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
ifdef CONFIG_M386
CFLAGS += -march=i386
endif
ifdef CONFIG_M486
CFLAGS += -march=i486
endif
ifdef CONFIG_M586
CFLAGS += -march=i586
endif
ifdef CONFIG_M586TSC
CFLAGS += -march=i586
endif
ifdef CONFIG_M586MMX
CFLAGS += -march=i586
endif
ifdef CONFIG_M686
CFLAGS += -march=i686
endif
ifdef CONFIG_MPENTIUMIII
CFLAGS += -march=i686
endif
ifdef CONFIG_MPENTIUM4
CFLAGS += -march=i686
endif
ifdef CONFIG_MK6
CFLAGS += $(call check_gcc,-march=k6,-march=i586)
endif
ifdef CONFIG_MK7
CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
endif
ifdef CONFIG_MCRUSOE
CFLAGS += -march=i686
CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
endif
ifdef CONFIG_MGEODE_LX
CFLAGS += -march=i686
endif
ifdef CONFIG_MWINCHIPC6
CFLAGS += -march=i586
endif
ifdef CONFIG_MWINCHIP2
CFLAGS += -march=i586
endif
ifdef CONFIG_MWINCHIP3D
CFLAGS += -march=i586
endif
ifdef CONFIG_MCYRIXIII
CFLAGS += $(call check_gcc,-march=c3,-march=i486)
CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
endif
ifdef CONFIG_MVIAC3_2
CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
endif
# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
# a lot more stack due to the lack of sharing of stacklots.
# CFLAGS += $(call if_gcc4,,$(call check_gcc,-fno-unit-at-a-time,))
# Disable unit-at-a-time on gcc >= 4 too, because it removes seemingly unused
# variables which are indeed module params.
CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib
CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
ifdef CONFIG_MATH_EMULATION
SUBDIRS += arch/i386/math-emu
DRIVERS += arch/i386/math-emu/math.o
endif
arch/i386/kernel: dummy
$(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
arch/i386/mm: dummy
$(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
vmlinux: arch/i386/vmlinux.lds
FORCE: ;
.PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
clean archclean archmrproper archdep
zImage: vmlinux
@$(MAKEBOOT) zImage
bzImage: vmlinux
@$(MAKEBOOT) bzImage
compressed: zImage
zlilo: vmlinux
@$(MAKEBOOT) BOOTIMAGE=zImage zlilo
tmp:
@$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
bzlilo: vmlinux
@$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
zdisk: vmlinux
@$(MAKEBOOT) BOOTIMAGE=zImage zdisk
bzdisk: vmlinux
@$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
install: vmlinux
@$(MAKEBOOT) BOOTIMAGE=bzImage install
archclean:
@$(MAKEBOOT) clean
archmrproper:
archdep:
@$(MAKEBOOT) dep
|
