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
19 LDFLAGS_MODULE
+= --be8
22 OBJCOPYFLAGS
:=-O binary
-R .comment
-S
24 #KBUILD_CFLAGS +=-pipe
26 # Never generate .eh_frame
27 KBUILD_CFLAGS
+= $(call cc-option
,-fno-dwarf2-cfi-asm
)
29 # Do not use arch/arm/defconfig - it's always outdated.
30 # Select a platform tht is kept up-to-date
31 KBUILD_DEFCONFIG
:= versatile_defconfig
33 # defines filename extension depending memory management type.
36 KBUILD_CFLAGS
+= $(call cc-option
,-mno-unaligned-access
)
39 ifeq ($(CONFIG_FRAME_POINTER
),y
)
40 KBUILD_CFLAGS
+=-fno-omit-frame-pointer
-mapcs
-mno-sched-prolog
43 ifeq ($(CONFIG_CPU_BIG_ENDIAN
),y
)
44 KBUILD_CPPFLAGS
+= -mbig-endian
48 KBUILD_CPPFLAGS
+= -mlittle-endian
55 # This selects which instruction set is used.
56 # Note that GCC does not numerically define an architecture version
57 # macro, but instead defines a whole series of macros which makes
58 # testing for a specific architecture or later rather impossible.
59 arch-
$(CONFIG_CPU_32v7M
) =-D__LINUX_ARM_ARCH__
=7 -march
=armv7-m
-Wa
,-march
=armv7-m
60 arch-
$(CONFIG_CPU_32v7
) =-D__LINUX_ARM_ARCH__
=7 $(call cc-option
,-march
=armv7-a
,-march
=armv5t
-Wa
$(comma
)-march
=armv7-a
)
61 arch-
$(CONFIG_CPU_32v6
) =-D__LINUX_ARM_ARCH__
=6 $(call cc-option
,-march
=armv6
,-march
=armv5t
-Wa
$(comma
)-march
=armv6
)
62 # Only override the compiler option if ARMv6. The ARMv6K extensions are
63 # always available in ARMv7
64 ifeq ($(CONFIG_CPU_32v6
),y
)
65 arch-
$(CONFIG_CPU_32v6K
) =-D__LINUX_ARM_ARCH__
=6 $(call cc-option
,-march
=armv6k
,-march
=armv5t
-Wa
$(comma
)-march
=armv6k
)
67 arch-
$(CONFIG_CPU_32v5
) =-D__LINUX_ARM_ARCH__
=5 $(call cc-option
,-march
=armv5te
,-march
=armv4t
)
68 arch-
$(CONFIG_CPU_32v4T
) =-D__LINUX_ARM_ARCH__
=4 -march
=armv4t
69 arch-
$(CONFIG_CPU_32v4
) =-D__LINUX_ARM_ARCH__
=4 -march
=armv4
70 arch-
$(CONFIG_CPU_32v3
) =-D__LINUX_ARM_ARCH__
=3 -march
=armv3
72 # Evaluate arch cc-option calls now
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 # Evaluate tune cc-option calls now
98 ifeq ($(CONFIG_AEABI
),y
)
99 CFLAGS_ABI
:=-mabi
=aapcs-linux
-mno-thumb-interwork
-mfpu
=vfp
101 CFLAGS_ABI
:=$(call cc-option
,-mapcs-32
,-mabi
=apcs-gnu
) $(call cc-option
,-mno-thumb-interwork
,)
104 ifeq ($(CONFIG_ARM_UNWIND
),y
)
105 CFLAGS_ABI
+=-funwind-tables
108 ifeq ($(CONFIG_THUMB2_KERNEL
),y
)
109 AFLAGS_AUTOIT
:=$(call as-option
,-Wa
$(comma
)-mimplicit-it
=always
,-Wa
$(comma
)-mauto-it
)
110 AFLAGS_NOWARN
:=$(call as-option
,-Wa
$(comma
)-mno-warn-deprecated
,-Wa
$(comma
)-W
)
111 CFLAGS_ISA
:=-mthumb
$(AFLAGS_AUTOIT
) $(AFLAGS_NOWARN
)
112 AFLAGS_ISA
:=$(CFLAGS_ISA
) -Wa
$(comma
)-mthumb
113 # Work around buggy relocation from gas if requested:
114 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11
),y
)
115 CFLAGS_MODULE
+=-fno-optimize-sibling-calls
118 CFLAGS_ISA
:=$(call cc-option
,-marm
,)
119 AFLAGS_ISA
:=$(CFLAGS_ISA
)
122 # Need -Uarm for gcc < 3.x
123 KBUILD_CFLAGS
+=$(CFLAGS_ABI
) $(CFLAGS_ISA
) $(arch-y
) $(tune-y
) $(call cc-option
,-mshort-load-bytes
,$(call cc-option
,-malignment-traps
,)) -msoft-float
-Uarm
124 KBUILD_AFLAGS
+=$(CFLAGS_ABI
) $(AFLAGS_ISA
) $(arch-y
) $(tune-y
) -include asm
/unified.h
-msoft-float
126 CHECKFLAGS
+= -D__arm__
129 head-y
:= arch
/arm
/kernel
/head
$(MMUEXT
).o
131 # Text offset. This list is sorted numerically by address in order to
132 # provide a means to avoid/resolve conflicts in multi-arch kernels.
133 textofs-y
:= 0x00008000
134 textofs-
$(CONFIG_ARCH_CLPS711X
) := 0x00028000
135 # We don't want the htc bootloader to corrupt kernel during resume
136 textofs-
$(CONFIG_PM_H1940
) := 0x00108000
137 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
138 ifeq ($(CONFIG_ARCH_SA1100
),y
)
139 textofs-
$(CONFIG_SA1111
) := 0x00208000
141 textofs-
$(CONFIG_ARCH_MSM7X30
) := 0x00208000
142 textofs-
$(CONFIG_ARCH_MSM8X60
) := 0x00208000
143 textofs-
$(CONFIG_ARCH_MSM8960
) := 0x00208000
144 textofs-
$(CONFIG_ARCH_AXXIA
) := 0x00308000
146 # Machine directory name. This list is sorted alphanumerically
147 # by CONFIG_* macro name.
148 machine-
$(CONFIG_ARCH_AT91
) += at91
149 machine-
$(CONFIG_ARCH_AXXIA
) += axxia
150 machine-
$(CONFIG_ARCH_BCM
) += bcm
151 machine-
$(CONFIG_ARCH_BERLIN
) += berlin
152 machine-
$(CONFIG_ARCH_CLPS711X
) += clps711x
153 machine-
$(CONFIG_ARCH_CNS3XXX
) += cns3xxx
154 machine-
$(CONFIG_ARCH_DAVINCI
) += davinci
155 machine-
$(CONFIG_ARCH_DOVE
) += dove
156 machine-
$(CONFIG_ARCH_EBSA110
) += ebsa110
157 machine-
$(CONFIG_ARCH_EFM32
) += efm32
158 machine-
$(CONFIG_ARCH_EP93XX
) += ep93xx
159 machine-
$(CONFIG_ARCH_EXYNOS
) += exynos
160 machine-
$(CONFIG_ARCH_GEMINI
) += gemini
161 machine-
$(CONFIG_ARCH_HIGHBANK
) += highbank
162 machine-
$(CONFIG_ARCH_HI3xxx
) += hisi
163 machine-
$(CONFIG_ARCH_INTEGRATOR
) += integrator
164 machine-
$(CONFIG_ARCH_IOP13XX
) += iop13xx
165 machine-
$(CONFIG_ARCH_IOP32X
) += iop32x
166 machine-
$(CONFIG_ARCH_IOP33X
) += iop33x
167 machine-
$(CONFIG_ARCH_IXP4XX
) += ixp4xx
168 machine-
$(CONFIG_ARCH_KEYSTONE
) += keystone
169 machine-
$(CONFIG_ARCH_KIRKWOOD
) += kirkwood
170 machine-
$(CONFIG_ARCH_KS8695
) += ks8695
171 machine-
$(CONFIG_ARCH_LPC32XX
) += lpc32xx
172 machine-
$(CONFIG_ARCH_MMP
) += mmp
173 machine-
$(CONFIG_ARCH_MOXART
) += moxart
174 machine-
$(CONFIG_ARCH_MSM
) += msm
175 machine-
$(CONFIG_ARCH_MV78XX0
) += mv78xx0
176 machine-
$(CONFIG_ARCH_MVEBU
) += mvebu
177 machine-
$(CONFIG_ARCH_MXC
) += imx
178 machine-
$(CONFIG_ARCH_MXS
) += mxs
179 machine-
$(CONFIG_ARCH_NETX
) += netx
180 machine-
$(CONFIG_ARCH_NOMADIK
) += nomadik
181 machine-
$(CONFIG_ARCH_NSPIRE
) += nspire
182 machine-
$(CONFIG_ARCH_OMAP1
) += omap1
183 machine-
$(CONFIG_ARCH_OMAP2PLUS
) += omap2
184 machine-
$(CONFIG_ARCH_ORION5X
) += orion5x
185 machine-
$(CONFIG_ARCH_PICOXCELL
) += picoxcell
186 machine-
$(CONFIG_ARCH_PXA
) += pxa
187 machine-
$(CONFIG_ARCH_QCOM
) += qcom
188 machine-
$(CONFIG_ARCH_REALVIEW
) += realview
189 machine-
$(CONFIG_ARCH_ROCKCHIP
) += rockchip
190 machine-
$(CONFIG_ARCH_RPC
) += rpc
191 machine-
$(CONFIG_ARCH_S3C24XX
) += s3c24xx
192 machine-
$(CONFIG_ARCH_S3C64XX
) += s3c64xx
193 machine-
$(CONFIG_ARCH_S5P64X0
) += s5p64x0
194 machine-
$(CONFIG_ARCH_S5PC100
) += s5pc100
195 machine-
$(CONFIG_ARCH_S5PV210
) += s5pv210
196 machine-
$(CONFIG_ARCH_SA1100
) += sa1100
197 machine-
$(CONFIG_ARCH_SHMOBILE
) += shmobile
198 machine-
$(CONFIG_ARCH_SIRF
) += prima2
199 machine-
$(CONFIG_ARCH_SOCFPGA
) += socfpga
200 machine-
$(CONFIG_ARCH_STI
) += sti
201 machine-
$(CONFIG_ARCH_SUNXI
) += sunxi
202 machine-
$(CONFIG_ARCH_TEGRA
) += tegra
203 machine-
$(CONFIG_ARCH_U300
) += u300
204 machine-
$(CONFIG_ARCH_U8500
) += ux500
205 machine-
$(CONFIG_ARCH_VERSATILE
) += versatile
206 machine-
$(CONFIG_ARCH_VEXPRESS
) += vexpress
207 machine-
$(CONFIG_ARCH_VT8500
) += vt8500
208 machine-
$(CONFIG_ARCH_W90X900
) += w90x900
209 machine-
$(CONFIG_ARCH_ZYNQ
) += zynq
210 machine-
$(CONFIG_FOOTBRIDGE
) += footbridge
211 machine-
$(CONFIG_PLAT_SPEAR
) += spear
213 # Platform directory name. This list is sorted alphanumerically
214 # by CONFIG_* macro name.
215 plat-
$(CONFIG_ARCH_EXYNOS
) += samsung
216 plat-
$(CONFIG_ARCH_OMAP
) += omap
217 plat-
$(CONFIG_ARCH_S3C64XX
) += samsung
218 plat-
$(CONFIG_PLAT_IOP
) += iop
219 plat-
$(CONFIG_PLAT_ORION
) += orion
220 plat-
$(CONFIG_PLAT_PXA
) += pxa
221 plat-
$(CONFIG_PLAT_S3C24XX
) += samsung
222 plat-
$(CONFIG_PLAT_S5P
) += samsung
223 plat-
$(CONFIG_PLAT_VERSATILE
) += versatile
225 ifeq ($(CONFIG_ARCH_EBSA110
),y
)
226 # This is what happens if you forget the IOCS16 line.
227 # PCMCIA cards stop working.
228 CFLAGS_3c589_cs.o
:=-DISA_SIXTEEN_BIT_PERIPHERAL
229 export CFLAGS_3c589_cs.o
232 # The byte offset of the kernel image in RAM from the start of RAM.
233 TEXT_OFFSET
:= $(textofs-y
)
235 # The first directory contains additional information for the boot setup code
236 ifneq ($(machine-y
),)
237 MACHINE
:= arch
/arm
/mach-
$(word 1,$(machine-y
))/
241 ifeq ($(CONFIG_ARCH_MULTIPLATFORM
),y
)
245 machdirs
:= $(patsubst %,arch
/arm
/mach-
%/,$(machine-y
))
246 platdirs
:= $(patsubst %,arch
/arm
/plat-
%/,$(plat-y
))
248 ifneq ($(CONFIG_ARCH_MULTIPLATFORM
),y
)
249 ifeq ($(KBUILD_SRC
),)
250 KBUILD_CPPFLAGS
+= $(patsubst %,-I
%include,$(machdirs
) $(platdirs
))
252 KBUILD_CPPFLAGS
+= $(patsubst %,-I
$(srctree
)/%include,$(machdirs
) $(platdirs
))
256 export TEXT_OFFSET GZFLAGS MMUEXT
258 # Do we have FASTFPE?
259 FASTFPE
:=arch
/arm
/fastfpe
260 ifeq ($(FASTFPE
),$(wildcard $(FASTFPE
)))
261 FASTFPE_OBJ
:=$(FASTFPE
)/
264 core-
$(CONFIG_FPE_NWFPE
) += arch
/arm
/nwfpe
/
265 core-
$(CONFIG_FPE_FASTFPE
) += $(FASTFPE_OBJ
)
266 core-
$(CONFIG_VFP
) += arch
/arm
/vfp
/
267 core-
$(CONFIG_XEN
) += arch
/arm
/xen
/
268 core-
$(CONFIG_KVM_ARM_HOST
) += arch
/arm
/kvm
/
270 # If we have a machine-specific directory, then include it in the build.
271 core-y
+= arch
/arm
/kernel
/ arch
/arm
/mm
/ arch
/arm
/common
/
272 core-y
+= arch
/arm
/net
/
273 core-y
+= arch
/arm
/crypto
/
274 core-y
+= arch
/arm
/firmware
/
275 core-y
+= $(machdirs
) $(platdirs
)
277 drivers-
$(CONFIG_OPROFILE
) += arch
/arm
/oprofile
/
279 libs-y
:= arch
/arm
/lib
/ $(libs-y
)
281 # Default target when executing plain make
282 ifeq ($(CONFIG_XIP_KERNEL
),y
)
283 KBUILD_IMAGE
:= xipImage
285 KBUILD_IMAGE
:= zImage
288 # Build the DT binary blobs if we have OF configured
289 ifeq ($(CONFIG_USE_OF
),y
)
293 all: $(KBUILD_IMAGE
) $(KBUILD_DTBS
)
295 boot
:= arch
/arm
/boot
298 $(Q
)$(MAKE
) $(build
)=arch
/arm
/tools
include/generated
/mach-types.h
300 # Convert bzImage to zImage
303 BOOT_TARGETS
= zImage Image xipImage bootpImage uImage
304 INSTALL_TARGETS
= zinstall uinstall
install
306 PHONY
+= bzImage
$(BOOT_TARGETS
) $(INSTALL_TARGETS
)
308 $(BOOT_TARGETS
): vmlinux
309 $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $(boot
)/$@
312 $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $@
315 $(Q
)$(MAKE
) $(build
)=$(boot
)/dts MACHINE
=$(MACHINE
) $(boot
)/dts
/$@
317 PHONY
+= dtbs dtbs_install
318 dtbs dtbs_install
: prepare scripts
319 $(Q
)$(MAKE
) $(build
)=$(boot
)/dts MACHINE
=$(MACHINE
) $@
321 # We use MRPROPER_FILES and CLEAN_FILES now
323 $(Q
)$(MAKE
) $(clean)=$(boot
)
325 # My testing targets (bypasses dependencies)
326 bp
:; $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $(boot
)/bootpImage
327 i zi
:; $(Q
)$(MAKE
) $(build
)=$(boot
) MACHINE
=$(MACHINE
) $@
331 echo
'* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
332 echo
' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
333 echo
'* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
334 echo
' uImage - U-Boot wrapped zImage'
335 echo
' bootpImage - Combined zImage and initial RAM disk'
336 echo
' (supply initrd image via make variable INITRD=<path>)'
337 echo
'* dtbs - Build device tree blobs for enabled boards'
338 echo
' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
339 echo
' install - Install uncompressed kernel'
340 echo
' zinstall - Install compressed kernel'
341 echo
' uinstall - Install U-Boot wrapped compressed kernel'
342 echo
' Install using (your) ~/bin/$(INSTALLKERNEL) or'
343 echo
' (distribution) /sbin/$(INSTALLKERNEL) or'
344 echo
' install to $$(INSTALL_PATH) and run lilo'