aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/Makefile
blob: 23d5e3946589a6c5e240b7d0060d84efee71d5d5 (plain)
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
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
#
# arch/arm/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# 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) 1995-2001 by Russell King

# Ensure linker flags are correct
LDFLAGS		:=

LDFLAGS_vmlinux	:=-p --no-undefined -X
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux	+= --be8
LDFLAGS_MODULE	+= --be8
endif

OBJCOPYFLAGS	:=-O binary -R .comment -S
GZFLAGS		:=-9
#KBUILD_CFLAGS	+=-pipe

# Never generate .eh_frame
KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)

# Do not use arch/arm/defconfig - it's always outdated.
# Select a platform tht is kept up-to-date
KBUILD_DEFCONFIG := versatile_defconfig

# defines filename extension depending memory management type.
ifeq ($(CONFIG_MMU),)
MMUEXT		:= -nommu
KBUILD_CFLAGS	+= $(call cc-option,-mno-unaligned-access)
endif

ifeq ($(CONFIG_FRAME_POINTER),y)
KBUILD_CFLAGS	+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
endif

ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
KBUILD_CPPFLAGS	+= -mbig-endian
AS		+= -EB
LD		+= -EB
else
KBUILD_CPPFLAGS	+= -mlittle-endian
AS		+= -EL
LD		+= -EL
endif

comma = ,

# This selects which instruction set is used.
# Note that GCC does not numerically define an architecture version
# macro, but instead defines a whole series of macros which makes
# testing for a specific architecture or later rather impossible.
arch-$(CONFIG_CPU_32v7M)	=-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
arch-$(CONFIG_CPU_32v7)		=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
arch-$(CONFIG_CPU_32v6)		=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
# Only override the compiler option if ARMv6. The ARMv6K extensions are
# always available in ARMv7
ifeq ($(CONFIG_CPU_32v6),y)
arch-$(CONFIG_CPU_32v6K)	=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
endif
arch-$(CONFIG_CPU_32v5)		=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
arch-$(CONFIG_CPU_32v4T)	=-D__LINUX_ARM_ARCH__=4 -march=armv4t
arch-$(CONFIG_CPU_32v4)		=-D__LINUX_ARM_ARCH__=4 -march=armv4
arch-$(CONFIG_CPU_32v3)		=-D__LINUX_ARM_ARCH__=3 -march=armv3

# Evaluate arch cc-option calls now
arch-y := $(arch-y)

# This selects how we optimise for the processor.
tune-$(CONFIG_CPU_ARM7TDMI)	=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM720T)	=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM740T)	=-mtune=arm7tdmi
tune-$(CONFIG_CPU_ARM9TDMI)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM940T)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM946E)	=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
tune-$(CONFIG_CPU_ARM920T)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM922T)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM925T)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_ARM926T)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_FA526)	=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110)	=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100)	=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE)	=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_XSC3)		=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_FEROCEON)	=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
tune-$(CONFIG_CPU_V6)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
tune-$(CONFIG_CPU_V6K)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)

# Evaluate tune cc-option calls now
tune-y := $(tune-y)

ifeq ($(CONFIG_AEABI),y)
CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
else
CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
endif

ifeq ($(CONFIG_ARM_UNWIND),y)
CFLAGS_ABI	+=-funwind-tables
endif

ifeq ($(CONFIG_THUMB2_KERNEL),y)
AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
CFLAGS_ISA	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
AFLAGS_ISA	:=$(CFLAGS_ISA) -Wa$(comma)-mthumb
# Work around buggy relocation from gas if requested:
ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
CFLAGS_MODULE	+=-fno-optimize-sibling-calls
endif
else
CFLAGS_ISA	:=$(call cc-option,-marm,)
AFLAGS_ISA	:=$(CFLAGS_ISA)
endif

# Need -Uarm for gcc < 3.x
KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float

CHECKFLAGS	+= -D__arm__

#Default value
head-y		:= arch/arm/kernel/head$(MMUEXT).o
textofs-y	:= 0x00008000
textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
# We don't want the htc bootloader to corrupt kernel during resume
textofs-$(CONFIG_PM_H1940)      := 0x00108000
# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
ifeq ($(CONFIG_ARCH_SA1100),y)
textofs-$(CONFIG_SA1111) := 0x00208000
endif
textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000

# Machine directory name.  This list is sorted alphanumerically
# by CONFIG_* macro name.
machine-$(CONFIG_ARCH_AT91)		+= at91
machine-$(CONFIG_ARCH_BCM)		+= bcm
machine-$(CONFIG_ARCH_BCM2835)		+= bcm2835
machine-$(CONFIG_ARCH_BERLIN)		+= berlin
machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx
machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
machine-$(CONFIG_ARCH_DOVE)		+= dove
machine-$(CONFIG_ARCH_EBSA110)		+= ebsa110
machine-$(CONFIG_ARCH_EFM32)		+= efm32
machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx
machine-$(CONFIG_ARCH_EXYNOS)		+= exynos
machine-$(CONFIG_ARCH_GEMINI)		+= gemini
machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank
machine-$(CONFIG_ARCH_HI3xxx)		+= hisi
machine-$(CONFIG_ARCH_INTEGRATOR)	+= integrator
machine-$(CONFIG_ARCH_IOP13XX)		+= iop13xx
machine-$(CONFIG_ARCH_IOP32X)		+= iop32x
machine-$(CONFIG_ARCH_IOP33X)		+= iop33x
machine-$(CONFIG_ARCH_IXP4XX)		+= ixp4xx
machine-$(CONFIG_ARCH_KEYSTONE)		+= keystone
machine-$(CONFIG_ARCH_KIRKWOOD)		+= kirkwood
machine-$(CONFIG_ARCH_KS8695)		+= ks8695
machine-$(CONFIG_ARCH_LPC32XX)		+= lpc32xx
machine-$(CONFIG_ARCH_MMP)		+= mmp
machine-$(CONFIG_ARCH_MOXART)		+= moxart
machine-$(CONFIG_ARCH_MSM)		+= msm
machine-$(CONFIG_ARCH_MV78XX0)		+= mv78xx0
machine-$(CONFIG_ARCH_MVEBU)		+= mvebu
machine-$(CONFIG_ARCH_MXC)		+= imx
machine-$(CONFIG_ARCH_MXS)		+= mxs
machine-$(CONFIG_ARCH_NETX)		+= netx
machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik
machine-$(CONFIG_ARCH_NSPIRE)		+= nspire
machine-$(CONFIG_ARCH_OMAP1)		+= omap1
machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2
machine-$(CONFIG_ARCH_ORION5X)		+= orion5x
machine-$(CONFIG_ARCH_PICOXCELL)	+= picoxcell
machine-$(CONFIG_ARCH_PXA)		+= pxa
machine-$(CONFIG_ARCH_REALVIEW)		+= realview
machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
machine-$(CONFIG_ARCH_RPC)		+= rpc
machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx
machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx
machine-$(CONFIG_ARCH_S5P64X0)		+= s5p64x0
machine-$(CONFIG_ARCH_S5PC100)		+= s5pc100
machine-$(CONFIG_ARCH_S5PV210)		+= s5pv210
machine-$(CONFIG_ARCH_SA1100)		+= sa1100
machine-$(CONFIG_ARCH_SHMOBILE) 	+= shmobile
machine-$(CONFIG_ARCH_SIRF)		+= prima2
machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
machine-$(CONFIG_ARCH_STI)		+= sti
machine-$(CONFIG_ARCH_SUNXI)		+= sunxi
machine-$(CONFIG_ARCH_TEGRA)		+= tegra
machine-$(CONFIG_ARCH_U300)		+= u300
machine-$(CONFIG_ARCH_U8500)		+= ux500
machine-$(CONFIG_ARCH_VERSATILE)	+= versatile
machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress
machine-$(CONFIG_ARCH_VIRT)		+= virt
machine-$(CONFIG_ARCH_VT8500)		+= vt8500
machine-$(CONFIG_ARCH_W90X900)		+= w90x900
machine-$(CONFIG_ARCH_ZYNQ)		+= zynq
machine-$(CONFIG_FOOTBRIDGE)		+= footbridge
machine-$(CONFIG_PLAT_SPEAR)		+= spear

# Platform directory name.  This list is sorted alphanumerically
# by CONFIG_* macro name.
plat-$(CONFIG_ARCH_EXYNOS)	+= samsung
plat-$(CONFIG_ARCH_OMAP)	+= omap
plat-$(CONFIG_ARCH_S3C64XX)	+= samsung
plat-$(CONFIG_PLAT_IOP)		+= iop
plat-$(CONFIG_PLAT_ORION)	+= orion
plat-$(CONFIG_PLAT_PXA)		+= pxa
plat-$(CONFIG_PLAT_S3C24XX)	+= samsung
plat-$(CONFIG_PLAT_S5P)		+= samsung
plat-$(CONFIG_PLAT_VERSATILE)	+= versatile

ifeq ($(CONFIG_ARCH_EBSA110),y)
# This is what happens if you forget the IOCS16 line.
# PCMCIA cards stop working.
CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
export CFLAGS_3c589_cs.o
endif

# The byte offset of the kernel image in RAM from the start of RAM.
TEXT_OFFSET := $(textofs-y)

# The first directory contains additional information for the boot setup code
ifneq ($(machine-y),)
MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
else
MACHINE  :=
endif
ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
MACHINE  :=
endif

machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))

ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
ifeq ($(KBUILD_SRC),)
KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
else
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
endif
endif

export	TEXT_OFFSET GZFLAGS MMUEXT

# Do we have FASTFPE?
FASTFPE		:=arch/arm/fastfpe
ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
FASTFPE_OBJ	:=$(FASTFPE)/
endif

core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
core-$(CONFIG_VFP)		+= arch/arm/vfp/
core-$(CONFIG_XEN)		+= arch/arm/xen/
core-$(CONFIG_KVM_ARM_HOST) 	+= arch/arm/kvm/

# If we have a machine-specific directory, then include it in the build.
core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
core-y				+= arch/arm/net/
core-y				+= arch/arm/crypto/
core-y				+= arch/arm/firmware/
core-y				+= $(machdirs) $(platdirs)

drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/

libs-y				:= arch/arm/lib/ $(libs-y)

# Default target when executing plain make
ifeq ($(CONFIG_XIP_KERNEL),y)
KBUILD_IMAGE := xipImage
else
KBUILD_IMAGE := zImage
endif

# Build the DT binary blobs if we have OF configured
ifeq ($(CONFIG_USE_OF),y)
KBUILD_DTBS := dtbs
endif

all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)

boot := arch/arm/boot

archprepare:
	$(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h

# Convert bzImage to zImage
bzImage: zImage

BOOT_TARGETS	= zImage Image xipImage bootpImage uImage
INSTALL_TARGETS	= zinstall uinstall install

PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)

$(BOOT_TARGETS): vmlinux
	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@

$(INSTALL_TARGETS):
	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@

%.dtb: | scripts
	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@

PHONY += dtbs
dtbs: scripts
	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs

# We use MRPROPER_FILES and CLEAN_FILES now
archclean:
	$(Q)$(MAKE) $(clean)=$(boot)

# My testing targets (bypasses dependencies)
bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@


define archhelp
  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
  echo  '  uImage        - U-Boot wrapped zImage'
  echo  '  bootpImage    - Combined zImage and initial RAM disk'
  echo  '                  (supply initrd image via make variable INITRD=<path>)'
  echo  '* dtbs          - Build device tree blobs for enabled boards'
  echo  '  install       - Install uncompressed kernel'
  echo  '  zinstall      - Install compressed kernel'
  echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
  echo  '                  install to $$(INSTALL_PATH) and run lilo'
endef