4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies.
7 # This file is subject to the terms and conditions of the GNU General Public
8 # License. See the file "COPYING" in the main directory of this archive
11 # Copyright (C) 1995-2001 by Russell King
13 # Ensure linker flags are correct
16 LDFLAGS_vmlinux
:=-p
--no-undefined
-X
17 ifeq ($(CONFIG_CPU_ENDIAN_BE8
),y
)
18 LDFLAGS_vmlinux
+= --be8
21 OBJCOPYFLAGS
:=-O binary
-R .comment
-S
23 #KBUILD_CFLAGS +=-pipe
25 # Never generate .eh_frame
26 KBUILD_CFLAGS
+= $(call cc-option
,-fno-dwarf2-cfi-asm
)
28 # Do not use arch/arm/defconfig - it's always outdated.
29 # Select a platform tht is kept up-to-date
30 KBUILD_DEFCONFIG
:= versatile_defconfig
32 # defines filename extension depending memory management type.
35 KBUILD_CFLAGS
+= $(call cc-option
,-mno-unaligned-access
)
38 ifeq ($(CONFIG_FRAME_POINTER
),y
)
39 KBUILD_CFLAGS
+=-fno-omit-frame-pointer
-mapcs
-mno-sched-prolog
42 ifeq ($(CONFIG_CC_STACKPROTECTOR
),y
)
43 KBUILD_CFLAGS
+=-fstack-protector
46 ifeq ($(CONFIG_CPU_BIG_ENDIAN
),y
)
47 KBUILD_CPPFLAGS
+= -mbig-endian
51 KBUILD_CPPFLAGS
+= -mlittle-endian
58 # This selects which instruction set is used.
59 # Note that GCC does not numerically define an architecture version
60 # macro, but instead defines a whole series of macros which makes
61 # testing for a specific architecture or later rather impossible.
62 arch-
$(CONFIG_CPU_32v7M
) :=-D__LINUX_ARM_ARCH__
=7 -march
=armv7-m
-Wa
,-march
=armv7-m
63 arch-
$(CONFIG_CPU_32v7
) :=-D__LINUX_ARM_ARCH__
=7 $(call cc-option
,-march
=armv7-a
,-march
=armv5t
-Wa
$(comma
)-march
=armv7-a
)
64 arch-
$(CONFIG_CPU_32v6
) :=-D__LINUX_ARM_ARCH__
=6 $(call cc-option
,-march
=armv6
,-march
=armv5t
-Wa
$(comma
)-march
=armv6
)
65 # Only override the compiler option if ARMv6. The ARMv6K extensions are
66 # always available in ARMv7
67 ifeq ($(CONFIG_CPU_32v6
),y
)
68 arch-
$(CONFIG_CPU_32v6K
) :=-D__LINUX_ARM_ARCH__
=6 $(call cc-option
,-march
=armv6k
,-march
=armv5t
-Wa
$(comma
)-march
=armv6k
)
70 arch-
$(CONFIG_CPU_32v5
) :=-D__LINUX_ARM_ARCH__
=5 $(call cc-option
,-march
=armv5te
,-march
=armv4t
)
71 arch-
$(CONFIG_CPU_32v4T
) :=-D__LINUX_ARM_ARCH__
=4 -march
=armv4t
72 arch-
$(CONFIG_CPU_32v4
) :=-D__LINUX_ARM_ARCH__
=4 -march
=armv4
73 arch-
$(CONFIG_CPU_32v3
) :=-D__LINUX_ARM_ARCH__
=3 -march
=armv3
75 # This selects how we optimise for the processor.
76 tune-
$(CONFIG_CPU_ARM7TDMI
) :=-mtune
=arm7tdmi
77 tune-
$(CONFIG_CPU_ARM720T
) :=-mtune
=arm7tdmi
78 tune-
$(CONFIG_CPU_ARM740T
) :=-mtune
=arm7tdmi
79 tune-
$(CONFIG_CPU_ARM9TDMI
) :=-mtune
=arm9tdmi
80 tune-
$(CONFIG_CPU_ARM940T
) :=-mtune
=arm9tdmi
81 tune-
$(CONFIG_CPU_ARM946E
) :=$(call cc-option
,-mtune
=arm9e
,-mtune
=arm9tdmi
)
82 tune-
$(CONFIG_CPU_ARM920T
) :=-mtune
=arm9tdmi
83 tune-
$(CONFIG_CPU_ARM922T
) :=-mtune
=arm9tdmi
84 tune-
$(CONFIG_CPU_ARM925T
) :=-mtune
=arm9tdmi
85 tune-
$(CONFIG_CPU_ARM926T
) :=-mtune
=arm9tdmi
86 tune-
$(CONFIG_CPU_FA526
) :=-mtune
=arm9tdmi
87 tune-
$(CONFIG_CPU_SA110
) :=-mtune
=strongarm110
88 tune-
$(CONFIG_CPU_SA1100
) :=-mtune
=strongarm1100
89 tune-
$(CONFIG_CPU_XSCALE
) :=$(call cc-option
,-mtune
=xscale
,-mtune
=strongarm110
) -Wa
,-mcpu
=xscale
90 tune-
$(CONFIG_CPU_XSC3
) :=$(call cc-option
,-mtune
=xscale
,-mtune
=strongarm110
) -Wa
,-mcpu
=xscale
91 tune-
$(CONFIG_CPU_FEROCEON
) :=$(call cc-option
,-mtune
=marvell-f
,-mtune
=xscale
)
92 tune-
$(CONFIG_CPU_V6
) :=$(call cc-option
,-mtune
=arm1136j-s
,-mtune
=strongarm
)
93 tune-
$(CONFIG_CPU_V6K
) :=$(call cc-option
,-mtune
=arm1136j-s
,-mtune
=strongarm
)
95 ifeq ($(CONFIG_AEABI
),y
)
96 CFLAGS_ABI
:=-mabi
=aapcs-linux
-mno-thumb-interwork
98 CFLAGS_ABI
:=$(call cc-option
,-mapcs-32
,-mabi
=apcs-gnu
) $(call cc-option
,-mno-thumb-interwork
,)
101 ifeq ($(CONFIG_ARM_UNWIND
),y
)
102 CFLAGS_ABI
+=-funwind-tables
105 ifeq ($(CONFIG_THUMB2_KERNEL
),y
)
106 AFLAGS_AUTOIT
:=$(call as-option
,-Wa
$(comma
)-mimplicit-it
=always
,-Wa
$(comma
)-mauto-it
)
107 AFLAGS_NOWARN
:=$(call as-option
,-Wa
$(comma
)-mno-warn-deprecated
,-Wa
$(comma
)-W
)
108 CFLAGS_ISA
:=-mthumb
$(AFLAGS_AUTOIT
) $(AFLAGS_NOWARN
)
109 AFLAGS_ISA
:=$(CFLAGS_ISA
) -Wa
$(comma
)-mthumb
110 # Work around buggy relocation from gas if requested:
111 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11
),y
)
112 CFLAGS_MODULE
+=-fno-optimize-sibling-calls
115 CFLAGS_ISA
:=$(call cc-option
,-marm
,)
116 AFLAGS_ISA
:=$(CFLAGS_ISA
)
119 # Need -Uarm for gcc < 3.x
120 KBUILD_CFLAGS
+=$(CFLAGS_ABI
) $(CFLAGS_ISA
) $(arch-y
) $(tune-y
) $(call cc-option
,-mshort-load-bytes
,$(call cc-option
,-malignment-traps
,)) -msoft-float
-Uarm
121 KBUILD_AFLAGS
+=$(CFLAGS_ABI
) $(AFLAGS_ISA
) $(arch-y
) $(tune-y
) -include asm
/unified.h
-msoft-float
123 CHECKFLAGS
+= -D__arm__
126 head-y
:= arch
/arm
/kernel
/head
$(MMUEXT
).o
127 textofs-y
:= 0x00008000
128 textofs-
$(CONFIG_ARCH_CLPS711X
) := 0x00028000
129 # We don't want the htc bootloader to corrupt kernel during resume
130 textofs-
$(CONFIG_PM_H1940
) := 0x00108000
131 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
132 ifeq ($(CONFIG_ARCH_SA1100
),y
)
133 textofs-
$(CONFIG_SA1111
) := 0x00208000
135 textofs-
$(CONFIG_ARCH_MSM7X30
) := 0x00208000
136 textofs-
$(CONFIG_ARCH_MSM8X60
) := 0x00208000
137 textofs-
$(CONFIG_ARCH_MSM8960
) := 0x00208000
139 # Machine directory name. This list is sorted alphanumerically
140 # by CONFIG_* macro name.
141 machine-
$(CONFIG_ARCH_AT91
) += at91
142 machine-
$(CONFIG_ARCH_BCM
) += bcm
143 machine-
$(CONFIG_ARCH_BCM2835
) += bcm2835
144 machine-
$(CONFIG_ARCH_CLPS711X
) += clps711x
145 machine-
$(CONFIG_ARCH_CNS3XXX
) += cns3xxx
146 machine-
$(CONFIG_ARCH_DAVINCI
) += davinci
147 machine-
$(CONFIG_ARCH_DOVE
) += dove
148 machine-
$(CONFIG_ARCH_EBSA110
) += ebsa110
149 machine-
$(CONFIG_ARCH_EP93XX
) += ep93xx
150 machine-
$(CONFIG_ARCH_GEMINI
) += gemini
151 machine-
$(CONFIG_ARCH_HIGHBANK
) += highbank
152 machine-
$(CONFIG_ARCH_INTEGRATOR
) += integrator
153 machine-
$(CONFIG_ARCH_IOP13XX
) += iop13xx
154 machine-
$(CONFIG_ARCH_IOP32X
) += iop32x
155 machine-
$(CONFIG_ARCH_IOP33X
) += iop33x
156 machine-
$(CONFIG_ARCH_IXP4XX
) += ixp4xx
157 machine-
$(CONFIG_ARCH_KIRKWOOD
) += kirkwood
158 machine-
$(CONFIG_ARCH_KS8695
) += ks8695
159 machine-
$(CONFIG_ARCH_LPC32XX
) += lpc32xx
160 machine-
$(CONFIG_ARCH_MMP
) += mmp
161 machine-
$(CONFIG_ARCH_MSM
) += msm
162 machine-
$(CONFIG_ARCH_MV78XX0
) += mv78xx0
163 machine-
$(CONFIG_ARCH_MXC
) += imx
164 machine-
$(CONFIG_ARCH_MXS
) += mxs
165 machine-
$(CONFIG_ARCH_MVEBU
) += mvebu
166 machine-
$(CONFIG_ARCH_NETX
) += netx
167 machine-
$(CONFIG_ARCH_NOMADIK
) += nomadik
168 machine-
$(CONFIG_ARCH_NSPIRE
) += nspire
169 machine-
$(CONFIG_ARCH_OMAP1
) += omap1
170 machine-
$(CONFIG_ARCH_OMAP2PLUS
) += omap2
171 machine-
$(CONFIG_ARCH_ORION5X
) += orion5x
172 machine-
$(CONFIG_ARCH_PICOXCELL
) += picoxcell
173 machine-
$(CONFIG_ARCH_SIRF
) += prima2
174 machine-
$(CONFIG_ARCH_PXA
) += pxa
175 machine-
$(CONFIG_ARCH_REALVIEW
) += realview
176 machine-
$(CONFIG_ARCH_ROCKCHIP
) += rockchip
177 machine-
$(CONFIG_ARCH_RPC
) += rpc
178 machine-
$(CONFIG_ARCH_S3C24XX
) += s3c24xx
179 machine-
$(CONFIG_ARCH_S3C64XX
) += s3c64xx
180 machine-
$(CONFIG_ARCH_S5P64X0
) += s5p64x0
181 machine-
$(CONFIG_ARCH_S5PC100
) += s5pc100
182 machine-
$(CONFIG_ARCH_S5PV210
) += s5pv210
183 machine-
$(CONFIG_ARCH_EXYNOS
) += exynos
184 machine-
$(CONFIG_ARCH_SA1100
) += sa1100
185 machine-
$(CONFIG_ARCH_SHARK
) += shark
186 machine-
$(CONFIG_ARCH_SHMOBILE
) += shmobile
187 machine-
$(CONFIG_ARCH_TEGRA
) += tegra
188 machine-
$(CONFIG_ARCH_U300
) += u300
189 machine-
$(CONFIG_ARCH_U8500
) += ux500
190 machine-
$(CONFIG_ARCH_VERSATILE
) += versatile
191 machine-
$(CONFIG_ARCH_VEXPRESS
) += vexpress
192 machine-
$(CONFIG_ARCH_VT8500
) += vt8500
193 machine-
$(CONFIG_ARCH_W90X900
) += w90x900
194 machine-
$(CONFIG_FOOTBRIDGE
) += footbridge
195 machine-
$(CONFIG_ARCH_SOCFPGA
) += socfpga
196 machine-
$(CONFIG_PLAT_SPEAR
) += spear
197 machine-
$(CONFIG_ARCH_STI
) += sti
198 machine-
$(CONFIG_ARCH_VIRT
) += virt
199 machine-
$(CONFIG_ARCH_ZYNQ
) += zynq
200 machine-
$(CONFIG_ARCH_SUNXI
) += sunxi
201 machine-
$(CONFIG_ARCH_KEYSTONE
) += keystone
203 # Platform directory name. This list is sorted alphanumerically
204 # by CONFIG_* macro name.
205 plat-
$(CONFIG_ARCH_EXYNOS
) += samsung
206 plat-
$(CONFIG_ARCH_OMAP
) += omap
207 plat-
$(CONFIG_ARCH_S3C64XX
) += samsung
208 plat-
$(CONFIG_PLAT_IOP
) += iop
209 plat-
$(CONFIG_PLAT_ORION
) += orion
210 plat-
$(CONFIG_PLAT_PXA
) += pxa
211 plat-
$(CONFIG_PLAT_S3C24XX
) += samsung
212 plat-
$(CONFIG_PLAT_S5P
) += samsung
213 plat-
$(CONFIG_PLAT_VERSATILE
) += versatile
215 ifeq ($(CONFIG_ARCH_EBSA110
),y
)
216 # This is what happens if you forget the IOCS16 line.
217 # PCMCIA cards stop working.
218 CFLAGS_3c589_cs.o
:=-DISA_SIXTEEN_BIT_PERIPHERAL
219 export CFLAGS_3c589_cs.o
222 # The byte offset of the kernel image in RAM from the start of RAM.
223 TEXT_OFFSET
:= $(textofs-y
)
225 # The first directory contains additional information for the boot setup code
226 ifneq ($(machine-y
),)
227 MACHINE
:= arch
/arm
/mach-
$(word 1,$(machine-y
))/
231 ifeq ($(CONFIG_ARCH_MULTIPLATFORM
),y
)
235 machdirs
:= $(patsubst %,arch
/arm
/mach-
%/,$(machine-y
))
236 platdirs
:= $(patsubst %,arch
/arm
/plat-
%/,$(plat-y
))
238 ifneq ($(CONFIG_ARCH_MULTIPLATFORM
),y
)
239 ifeq ($(KBUILD_SRC
),)
240 KBUILD_CPPFLAGS
+= $(patsubst %,-I
%include,$(machdirs
) $(platdirs
))
242 KBUILD_CPPFLAGS
+= $(patsubst %,-I
$(srctree
)/%include,$(machdirs
) $(platdirs
))
246 export TEXT_OFFSET GZFLAGS MMUEXT
248 # Do we have FASTFPE?
249 FASTFPE
:=arch
/arm
/fastfpe
250 ifeq ($(FASTFPE
),$(wildcard $(FASTFPE
)))
251 FASTFPE_OBJ
:=$(FASTFPE
)/
254 core-
$(CONFIG_FPE_NWFPE
) += arch
/arm
/nwfpe
/
255 core-
$(CONFIG_FPE_FASTFPE
) += $(FASTFPE_OBJ
)
256 core-
$(CONFIG_VFP
) += arch
/arm
/vfp
/
257 core-
$(CONFIG_XEN
) += arch
/arm
/xen
/
258 core-
$(CONFIG_KVM_ARM_HOST
) += arch
/arm
/kvm
/
260 # If we have a machine-specific directory, then include it in the build.
261 core-y
+= arch
/arm
/kernel
/ arch
/arm
/mm
/ arch
/arm
/common
/
262 core-y
+= arch
/arm
/net
/
263 core-y
+= arch
/arm
/crypto
/
264 core-y
+= $(machdirs
) $(platdirs
)
266 drivers-
$(CONFIG_OPROFILE
) += arch
/arm
/oprofile
/
268 libs-y
:= arch
/arm
/lib
/ $(libs-y
)
270 # Default target when executing plain make
271 ifeq ($(CONFIG_XIP_KERNEL
),y
)
272 KBUILD_IMAGE
:= xipImage
274 KBUILD_IMAGE
:= zImage
277 # Build the DT binary blobs if we have OF configured
278 ifeq ($(CONFIG_USE_OF
),y
)
282 all: $(KBUILD_IMAGE
) $(KBUILD_DTBS
)
284 boot
:= arch
/arm
/boot
287 $(Q
)$(MAKE
) $(build
)=arch
/arm
/tools
include/generated
/mach-types.h
289 # Convert bzImage to zImage
292 zImage Image xipImage bootpImage uImage
: vmlinux
293 $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $(boot
)/$@
295 zinstall uinstall
install: vmlinux
296 $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $@
299 $(Q
)$(MAKE
) $(build
)=$(boot
)/dts MACHINE
=$(MACHINE
) $(boot
)/dts
/$@
302 $(Q
)$(MAKE
) $(build
)=$(boot
)/dts MACHINE
=$(MACHINE
) dtbs
304 # We use MRPROPER_FILES and CLEAN_FILES now
306 $(Q
)$(MAKE
) $(clean)=$(boot
)
308 # My testing targets (bypasses dependencies)
309 bp
:; $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $(boot
)/bootpImage
310 i zi
:; $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $@
314 echo
'* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
315 echo
' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
316 echo
'* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
317 echo
' uImage - U-Boot wrapped zImage'
318 echo
' bootpImage - Combined zImage and initial RAM disk'
319 echo
' (supply initrd image via make variable INITRD=<path>)'
320 echo
'* dtbs - Build device tree blobs for enabled boards'
321 echo
' install - Install uncompressed kernel'
322 echo
' zinstall - Install compressed kernel'
323 echo
' uinstall - Install U-Boot wrapped compressed kernel'
324 echo
' Install using (your) ~/bin/$(INSTALLKERNEL) or'
325 echo
' (distribution) /sbin/$(INSTALLKERNEL) or'
326 echo
' install to $$(INSTALL_PATH) and run lilo'