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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
#
# arch/arm/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) 1995-2000 by Russell King
OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
CPP := $(CC) -E
LINKFLAGS := -p -X -T arch/arm/vmlinux.lds
ARCHCC := $(word 1,$(CC))
AFLAGS += -mno-fpu
CFLAGS_PIPE := -pipe
CFLAGS := $(CFLAGS) $(CFLAGS_PIPE) -msoft-float
ifdef CONFIG_FRAME_POINTER
CFLAGS := $(CFLAGS:-fomit-frame-pointer=)
endif
ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
GZFLAGS = -9
# Ensure this is ld "2.9.4" or later
NEW_LINKER := $(shell $(LD) --gc-sections --version >/dev/null 2>&1; echo $$?)
ifneq ($(NEW_LINKER),0)
dummy:; @echo '*** ${VERSION}.${PATCHLEVEL} kernels no longer build correctly with old versions of binutils.'
@echo '*** Please upgrade your binutils to 2.9.5.'
@false
endif
# GCC 2.7 uses different options to later compilers; sort out which we have
NEW_GCC := $(shell $(CC) --version 2>&1 | grep '^2\.7' > /dev/null; echo $$?)
#
# select flags depending on the compiler
#
ifneq ($(NEW_GCC),0)
CFLAGS += -mshort-load-bytes
CFLAGS_PROC_CPU_26 := -mcpu=arm3 -mapcs-26 -Os
CFLAGS_PROC_CPU_32v3 := -march=armv3
CFLAGS_PROC_CPU_32v4 := -march=armv4
else
CFLAGS += -DNO_TEXT_SECTIONS
CFLAGS_PROC_CPU_26 := -m3
CFLAGS_PROC_CPU_32v3 := -m6
CFLAGS_PROC_CPU_32v4 := -m6
endif
#
# Select CPU dependent flags
#
ifeq ($(CONFIG_CPU_26),y)
PROCESSOR = armo
TEXTADDR = 0x02080000
CFLAGS += $(CFLAGS_PROC_CPU_26)
AFLAGS += -mapcs-26
endif
ifeq ($(CONFIG_CPU_32),y)
PROCESSOR = armv
TEXTADDR = 0xC0008000
ifeq ($(CONFIG_CPU_32v4),y)
CFLAGS += $(CFLAGS_PROC_CPU_32v4)
AFLAGS += -mapcs-32 -marmv4
else
CFLAGS += $(CFLAGS_PROC_CPU_32v3)
AFLAGS += -mapcs-32 -marmv3m
endif
opt-$(CONFIG_CPU_ARM6) := -mtune=arm6
opt-$(CONFIG_CPU_ARM7) := -mtune=arm7
opt-$(CONFIG_CPU_ARM720) := -mtune=arm7tdmi
opt-$(CONFIG_CPU_ARM920) := -mtune=arm9tdmi
opt-$(CONFIG_CPU_SA110) := -mtune=strongarm110
opt-$(CONFIG_CPU_SA1100) := -mtune=strongarm110
ifneq ($(NEW_GCC),0)
CFLAGS += $(opt-y)
endif
endif
LIBGCC := $(shell $(CC) $(CFLAGS) --print-libgcc-file-name)
export LIBGCC MACHINE PROCESSOR TEXTADDR GZFLAGS
ifeq ($(CONFIG_ARCH_ARCA5K),y)
MACHINE = arc
endif
ifeq ($(CONFIG_ARCH_RPC),y)
MACHINE = rpc
endif
ifeq ($(CONFIG_ARCH_EBSA110),y)
MACHINE = ebsa110
endif
ifeq ($(CONFIG_ARCH_CLPS7500),y)
MACHINE = clps7500
INCDIR = cl7500
endif
ifeq ($(CONFIG_FOOTBRIDGE),y)
MACHINE = footbridge
INCDIR = ebsa285
endif
ifeq ($(CONFIG_ARCH_CO285),y)
TEXTADDR = 0x60008000
MACHINE = footbridge
INCDIR = ebsa285
endif
ifeq ($(CONFIG_ARCH_NEXUSPCI),y)
MACHINE = nexuspci
endif
ifeq ($(CONFIG_ARCH_SHARK),y)
MACHINE = shark
endif
ifeq ($(CONFIG_ARCH_SA1100),y)
MACHINE = sa1100
endif
ifeq ($(CONFIG_ARCH_L7200),y)
MACHINE = l7200
endif
ifeq ($(CONFIG_ARCH_INTEGRATOR),y)
MACHINE = integrator
endif
# Only set INCDIR if its not already defined above
# Grr, ?= doesn't work as all the other assignment operators do. Make bug?
ifeq ($(origin INCDIR), undefined)
INCDIR := $(MACHINE)
endif
# If we have a machine-specific directory, then include it in the build.
MACHDIR := arch/arm/mach-$(MACHINE)
ifeq ($(MACHDIR),$(wildcard $(MACHDIR)))
SUBDIRS += $(MACHDIR)
CORE_FILES := $(MACHDIR)/$(MACHINE).o $(CORE_FILES)
endif
HEAD := arch/arm/kernel/head-$(PROCESSOR).o \
arch/arm/kernel/init_task.o
SUBDIRS += arch/arm/kernel arch/arm/mm arch/arm/lib \
arch/arm/nwfpe
CORE_FILES := arch/arm/kernel/kernel.o arch/arm/mm/mm.o $(CORE_FILES)
LIBS := arch/arm/lib/lib.o arch/arm/lib/lib.a $(LIBS) $(LIBGCC)
ifeq ($(CONFIG_NWFPE),y)
LIBS := arch/arm/nwfpe/math-emu.o $(LIBS)
endif
ifeq ($(CONFIG_ARCH_ACORN),y)
SUBDIRS += drivers/acorn
DRIVERS += drivers/acorn/block/acorn-block.a
DRIVERS += drivers/acorn/char/acorn-char.o
DRIVERS += drivers/acorn/net/acorn-net.o
DRIVERS += drivers/acorn/scsi/acorn-scsi.a
endif
ifeq ($(CONFIG_ARCH_CLPS7500),y)
SUBDIRS += drivers/acorn/char
DRIVERS += drivers/acorn/char/acorn-char.o
endif
MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
# The following is a hack to get 'constants.h' up
# to date before starting compilation
$(patsubst %, _dir_%, $(SUBDIRS)) init/main.o init/version.o : \
include/asm-arm/mach-types.h
$(patsubst %, _dir_%, $(SUBDIRS)) : constants
include/asm-arm/mach-types.h: arch/arm/tools/mach-types \
arch/arm/tools/gen-mach-types
@awk -f arch/arm/tools/gen-mach-types arch/arm/tools/mach-types > $@
constants: dummy
@$(MAKE) -C arch/arm/lib constants.h
symlinks: archsymlinks
archsymlinks:
$(RM) include/asm-arm/arch include/asm-arm/proc
(cd include/asm-arm; ln -sf arch-$(INCDIR) arch; ln -sf proc-$(PROCESSOR) proc)
vmlinux: arch/arm/vmlinux.lds
arch/arm/vmlinux.lds: arch/arm/vmlinux-$(PROCESSOR).lds.in dummy
@sed 's/TEXTADDR/$(TEXTADDR)/' <$< >$@
arch/arm/kernel arch/arm/mm arch/arm/lib: dummy
$(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" $(subst $@, _dir_$@, $@)
bzImage zImage zinstall Image bootpImage install: vmlinux
@$(MAKEBOOT) $@
archmrproper:
$(RM) include/asm-arm/arch include/asm-arm/proc
archclean:
@$(MAKEBOOT) clean
$(RM) arch/arm/lib/constants.h arch/arm/vmlinux.lds
$(RM) include/asm-arm/mach-types.h
archdep: archsymlinks
@$(MAKEBOOT) dep
# My testing targets (that short circuit a few dependencies)
zImg:; @$(MAKEBOOT) zImage
Img:; @$(MAKEBOOT) Image
i:; @$(MAKEBOOT) install
zi:; @$(MAKEBOOT) zinstall
#
# Configuration targets. Use these to select a
# configuration for your architecture
CFGS= a5k_config ebsa110_config \
footbridge_config rpc_config \
brutus_config victor_config \
empeg_config thinclient_config \
assabet_config lart_config \
cerf_config lusl7200_config
$(CFGS):
@( \
CFG=$(@:_config=); \
if [ -f arch/arm/def-configs/$$CFG ]; then \
$(RM) arch/arm/defconfig; \
cp arch/arm/def-configs/$$CFG arch/arm/defconfig; \
echo "*** Default configuration for $$CFG installed"; \
echo "*** Next, you may run 'make oldconfig'"; \
else \
echo "$$CFG does not exist"; \
fi; \
)
|
