GNU Linux-libre 4.14.266-gnu1
[releases.git] / arch / arm / Makefile
1 #
2 # arch/arm/Makefile
3 #
4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies.
6 #
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
9 # for more details.
10 #
11 # Copyright (C) 1995-2001 by Russell King
12
13 # Ensure linker flags are correct
14 LDFLAGS         :=
15
16 LDFLAGS_vmlinux := --no-undefined -X --pic-veneer
17 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
18 LDFLAGS_vmlinux += --be8
19 LDFLAGS_MODULE  += --be8
20 endif
21
22 ifeq ($(CONFIG_ARM_MODULE_PLTS),y)
23 LDFLAGS_MODULE  += -T $(srctree)/arch/arm/kernel/module.lds
24 endif
25
26 GZFLAGS         :=-9
27 #KBUILD_CFLAGS  +=-pipe
28
29 # Never generate .eh_frame
30 KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
31
32 # This should work on most of the modern platforms
33 KBUILD_DEFCONFIG := multi_v7_defconfig
34
35 # defines filename extension depending memory management type.
36 ifeq ($(CONFIG_MMU),)
37 MMUEXT          := -nommu
38 KBUILD_CFLAGS   += $(call cc-option,-mno-unaligned-access)
39 endif
40
41 ifeq ($(CONFIG_FRAME_POINTER),y)
42 KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
43 endif
44
45 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
46 KBUILD_CPPFLAGS += -mbig-endian
47 CHECKFLAGS      += -D__ARMEB__
48 AS              += -EB
49 LD              += -EB
50 else
51 KBUILD_CPPFLAGS += -mlittle-endian
52 CHECKFLAGS      += -D__ARMEL__
53 AS              += -EL
54 LD              += -EL
55 endif
56
57 #
58 # The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
59 # later may result in code being generated that handles signed short and signed
60 # char struct members incorrectly. So disable it.
61 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
62 #
63 KBUILD_CFLAGS   += $(call cc-option,-fno-ipa-sra)
64
65 # This selects which instruction set is used.
66 # Note that GCC does not numerically define an architecture version
67 # macro, but instead defines a whole series of macros which makes
68 # testing for a specific architecture or later rather impossible.
69 arch-$(CONFIG_CPU_32v7M)        =-D__LINUX_ARM_ARCH__=7 -march=armv7-m
70 arch-$(CONFIG_CPU_32v7)         =-D__LINUX_ARM_ARCH__=7 -march=armv7-a
71 arch-$(CONFIG_CPU_32v6)         =-D__LINUX_ARM_ARCH__=6 -march=armv6
72 # Only override the compiler option if ARMv6. The ARMv6K extensions are
73 # always available in ARMv7
74 ifeq ($(CONFIG_CPU_32v6),y)
75 arch-$(CONFIG_CPU_32v6K)        =-D__LINUX_ARM_ARCH__=6 -march=armv6k
76 endif
77 arch-$(CONFIG_CPU_32v5)         =-D__LINUX_ARM_ARCH__=5 -march=armv5te
78 arch-$(CONFIG_CPU_32v4T)        =-D__LINUX_ARM_ARCH__=4 -march=armv4t
79 arch-$(CONFIG_CPU_32v4)         =-D__LINUX_ARM_ARCH__=4 -march=armv4
80 arch-$(CONFIG_CPU_32v3)         =-D__LINUX_ARM_ARCH__=3 -march=armv3
81
82 # Evaluate arch cc-option calls now
83 arch-y := $(arch-y)
84
85 # This selects how we optimise for the processor.
86 tune-$(CONFIG_CPU_ARM7TDMI)     =-mtune=arm7tdmi
87 tune-$(CONFIG_CPU_ARM720T)      =-mtune=arm7tdmi
88 tune-$(CONFIG_CPU_ARM740T)      =-mtune=arm7tdmi
89 tune-$(CONFIG_CPU_ARM9TDMI)     =-mtune=arm9tdmi
90 tune-$(CONFIG_CPU_ARM940T)      =-mtune=arm9tdmi
91 tune-$(CONFIG_CPU_ARM946E)      =-mtune=arm9e
92 tune-$(CONFIG_CPU_ARM920T)      =-mtune=arm9tdmi
93 tune-$(CONFIG_CPU_ARM922T)      =-mtune=arm9tdmi
94 tune-$(CONFIG_CPU_ARM925T)      =-mtune=arm9tdmi
95 tune-$(CONFIG_CPU_ARM926T)      =-mtune=arm9tdmi
96 tune-$(CONFIG_CPU_FA526)        =-mtune=arm9tdmi
97 tune-$(CONFIG_CPU_SA110)        =-mtune=strongarm110
98 tune-$(CONFIG_CPU_SA1100)       =-mtune=strongarm1100
99 tune-$(CONFIG_CPU_XSCALE)       =-mtune=xscale
100 tune-$(CONFIG_CPU_XSC3)         =-mtune=xscale
101 tune-$(CONFIG_CPU_FEROCEON)     =-mtune=xscale
102 tune-$(CONFIG_CPU_V6)           =-mtune=arm1136j-s
103 tune-$(CONFIG_CPU_V6K)          =-mtune=arm1136j-s
104
105 # Evaluate tune cc-option calls now
106 tune-y := $(tune-y)
107
108 ifeq ($(CONFIG_AEABI),y)
109 CFLAGS_ABI      :=-mabi=aapcs-linux -mfpu=vfp
110 else
111 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
112 endif
113
114 ifeq ($(CONFIG_ARM_UNWIND),y)
115 CFLAGS_ABI      +=-funwind-tables
116 endif
117
118 # Accept old syntax despite ".syntax unified"
119 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
120
121 ifeq ($(CONFIG_THUMB2_KERNEL),y)
122 AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
123 CFLAGS_ISA      :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
124 AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
125 # Work around buggy relocation from gas if requested:
126 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
127 CFLAGS_MODULE   +=-fno-optimize-sibling-calls
128 endif
129 else
130 CFLAGS_ISA      :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
131 AFLAGS_ISA      :=$(CFLAGS_ISA)
132 endif
133
134 # Need -Uarm for gcc < 3.x
135 KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
136 KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
137
138 CHECKFLAGS      += -D__arm__ -m32
139
140 #Default value
141 head-y          := arch/arm/kernel/head$(MMUEXT).o
142
143 # Text offset. This list is sorted numerically by address in order to
144 # provide a means to avoid/resolve conflicts in multi-arch kernels.
145 textofs-y       := 0x00008000
146 # We don't want the htc bootloader to corrupt kernel during resume
147 textofs-$(CONFIG_PM_H1940)      := 0x00108000
148 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
149 ifeq ($(CONFIG_ARCH_SA1100),y)
150 textofs-$(CONFIG_SA1111) := 0x00208000
151 endif
152 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
153 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
154 textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
155
156 # Machine directory name.  This list is sorted alphanumerically
157 # by CONFIG_* macro name.
158 machine-$(CONFIG_ARCH_ACTIONS)          += actions
159 machine-$(CONFIG_ARCH_ALPINE)           += alpine
160 machine-$(CONFIG_ARCH_ARTPEC)           += artpec
161 machine-$(CONFIG_ARCH_AT91)             += at91
162 machine-$(CONFIG_ARCH_AXXIA)            += axxia
163 machine-$(CONFIG_ARCH_BCM)              += bcm
164 machine-$(CONFIG_ARCH_BERLIN)           += berlin
165 machine-$(CONFIG_ARCH_CLPS711X)         += clps711x
166 machine-$(CONFIG_ARCH_CNS3XXX)          += cns3xxx
167 machine-$(CONFIG_ARCH_DAVINCI)          += davinci
168 machine-$(CONFIG_ARCH_DIGICOLOR)        += digicolor
169 machine-$(CONFIG_ARCH_DOVE)             += dove
170 machine-$(CONFIG_ARCH_EBSA110)          += ebsa110
171 machine-$(CONFIG_ARCH_EFM32)            += efm32
172 machine-$(CONFIG_ARCH_EP93XX)           += ep93xx
173 machine-$(CONFIG_ARCH_EXYNOS)           += exynos
174 machine-$(CONFIG_ARCH_FOOTBRIDGE)       += footbridge
175 machine-$(CONFIG_ARCH_GEMINI)           += gemini
176 machine-$(CONFIG_ARCH_HIGHBANK)         += highbank
177 machine-$(CONFIG_ARCH_HISI)             += hisi
178 machine-$(CONFIG_ARCH_INTEGRATOR)       += integrator
179 machine-$(CONFIG_ARCH_IOP13XX)          += iop13xx
180 machine-$(CONFIG_ARCH_IOP32X)           += iop32x
181 machine-$(CONFIG_ARCH_IOP33X)           += iop33x
182 machine-$(CONFIG_ARCH_IXP4XX)           += ixp4xx
183 machine-$(CONFIG_ARCH_KEYSTONE)         += keystone
184 machine-$(CONFIG_ARCH_KS8695)           += ks8695
185 machine-$(CONFIG_ARCH_LPC18XX)          += lpc18xx
186 machine-$(CONFIG_ARCH_LPC32XX)          += lpc32xx
187 machine-$(CONFIG_ARCH_MESON)            += meson
188 machine-$(CONFIG_ARCH_MMP)              += mmp
189 machine-$(CONFIG_ARCH_MPS2)             += vexpress
190 machine-$(CONFIG_ARCH_MOXART)           += moxart
191 machine-$(CONFIG_ARCH_MV78XX0)          += mv78xx0
192 machine-$(CONFIG_ARCH_MVEBU)            += mvebu
193 machine-$(CONFIG_ARCH_MXC)              += imx
194 machine-$(CONFIG_ARCH_MEDIATEK)         += mediatek
195 machine-$(CONFIG_ARCH_MXS)              += mxs
196 machine-$(CONFIG_ARCH_NETX)             += netx
197 machine-$(CONFIG_ARCH_NOMADIK)          += nomadik
198 machine-$(CONFIG_ARCH_NSPIRE)           += nspire
199 machine-$(CONFIG_ARCH_OXNAS)            += oxnas
200 machine-$(CONFIG_ARCH_OMAP1)            += omap1
201 machine-$(CONFIG_ARCH_OMAP2PLUS)        += omap2
202 machine-$(CONFIG_ARCH_ORION5X)          += orion5x
203 machine-$(CONFIG_ARCH_PICOXCELL)        += picoxcell
204 machine-$(CONFIG_ARCH_PXA)              += pxa
205 machine-$(CONFIG_ARCH_QCOM)             += qcom
206 machine-$(CONFIG_ARCH_REALVIEW)         += realview
207 machine-$(CONFIG_ARCH_ROCKCHIP)         += rockchip
208 machine-$(CONFIG_ARCH_RPC)              += rpc
209 machine-$(CONFIG_ARCH_S3C24XX)          += s3c24xx
210 machine-$(CONFIG_ARCH_S3C64XX)          += s3c64xx
211 machine-$(CONFIG_ARCH_S5PV210)          += s5pv210
212 machine-$(CONFIG_ARCH_SA1100)           += sa1100
213 machine-$(CONFIG_ARCH_SHMOBILE)         += shmobile
214 machine-$(CONFIG_ARCH_SIRF)             += prima2
215 machine-$(CONFIG_ARCH_SOCFPGA)          += socfpga
216 machine-$(CONFIG_ARCH_STI)              += sti
217 machine-$(CONFIG_ARCH_STM32)            += stm32
218 machine-$(CONFIG_ARCH_SUNXI)            += sunxi
219 machine-$(CONFIG_ARCH_TANGO)            += tango
220 machine-$(CONFIG_ARCH_TEGRA)            += tegra
221 machine-$(CONFIG_ARCH_U300)             += u300
222 machine-$(CONFIG_ARCH_U8500)            += ux500
223 machine-$(CONFIG_ARCH_UNIPHIER)         += uniphier
224 machine-$(CONFIG_ARCH_VERSATILE)        += versatile
225 machine-$(CONFIG_ARCH_VEXPRESS)         += vexpress
226 machine-$(CONFIG_ARCH_VT8500)           += vt8500
227 machine-$(CONFIG_ARCH_W90X900)          += w90x900
228 machine-$(CONFIG_ARCH_ZX)               += zx
229 machine-$(CONFIG_ARCH_ZYNQ)             += zynq
230 machine-$(CONFIG_PLAT_SPEAR)            += spear
231
232 # Platform directory name.  This list is sorted alphanumerically
233 # by CONFIG_* macro name.
234 plat-$(CONFIG_ARCH_EXYNOS)      += samsung
235 plat-$(CONFIG_ARCH_OMAP)        += omap
236 plat-$(CONFIG_ARCH_S3C64XX)     += samsung
237 plat-$(CONFIG_ARCH_S5PV210)     += samsung
238 plat-$(CONFIG_PLAT_IOP)         += iop
239 plat-$(CONFIG_PLAT_ORION)       += orion
240 plat-$(CONFIG_PLAT_PXA)         += pxa
241 plat-$(CONFIG_PLAT_S3C24XX)     += samsung
242 plat-$(CONFIG_PLAT_VERSATILE)   += versatile
243
244 ifeq ($(CONFIG_ARCH_EBSA110),y)
245 # This is what happens if you forget the IOCS16 line.
246 # PCMCIA cards stop working.
247 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
248 export CFLAGS_3c589_cs.o
249 endif
250
251 # The byte offset of the kernel image in RAM from the start of RAM.
252 TEXT_OFFSET := $(textofs-y)
253
254 # The first directory contains additional information for the boot setup code
255 ifneq ($(machine-y),)
256 MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
257 else
258 MACHINE  :=
259 endif
260 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
261 MACHINE  :=
262 endif
263
264 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
265 platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
266
267 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
268 ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y)
269 ifeq ($(KBUILD_SRC),)
270 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
271 else
272 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
273 endif
274 endif
275 endif
276
277 export  TEXT_OFFSET GZFLAGS MMUEXT
278
279 # Do we have FASTFPE?
280 FASTFPE         :=arch/arm/fastfpe
281 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
282 FASTFPE_OBJ     :=$(FASTFPE)/
283 endif
284
285 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
286 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
287 core-$(CONFIG_VFP)              += arch/arm/vfp/
288 core-$(CONFIG_XEN)              += arch/arm/xen/
289 core-$(CONFIG_KVM_ARM_HOST)     += arch/arm/kvm/
290 core-$(CONFIG_VDSO)             += arch/arm/vdso/
291
292 # If we have a machine-specific directory, then include it in the build.
293 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
294 core-y                          += arch/arm/probes/
295 core-y                          += arch/arm/net/
296 core-y                          += arch/arm/crypto/
297 core-y                          += arch/arm/firmware/
298 core-y                          += $(machdirs) $(platdirs)
299
300 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
301
302 libs-y                          := arch/arm/lib/ $(libs-y)
303
304 # Default target when executing plain make
305 boot := arch/arm/boot
306 ifeq ($(CONFIG_XIP_KERNEL),y)
307 KBUILD_IMAGE := $(boot)/xipImage
308 else
309 KBUILD_IMAGE := $(boot)/zImage
310 endif
311
312 # Build the DT binary blobs if we have OF configured
313 ifeq ($(CONFIG_USE_OF),y)
314 KBUILD_DTBS := dtbs
315 endif
316
317 all:    $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTBS)
318
319
320 archheaders:
321         $(Q)$(MAKE) $(build)=arch/arm/tools uapi
322
323 archprepare:
324         $(Q)$(MAKE) $(build)=arch/arm/tools kapi
325
326 # Convert bzImage to zImage
327 bzImage: zImage
328
329 BOOT_TARGETS    = zImage Image xipImage bootpImage uImage
330 INSTALL_TARGETS = zinstall uinstall install
331
332 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
333
334 bootpImage uImage: zImage
335 zImage: Image
336
337 $(BOOT_TARGETS): vmlinux
338         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
339         @$(kecho) '  Kernel: $(boot)/$@ is ready'
340
341 $(INSTALL_TARGETS):
342         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
343
344 %.dtb: | scripts
345         $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
346
347 PHONY += dtbs dtbs_install
348
349 dtbs: prepare scripts
350         $(Q)$(MAKE) $(build)=$(boot)/dts
351
352 dtbs_install:
353         $(Q)$(MAKE) $(dtbinst)=$(boot)/dts
354
355 PHONY += vdso_install
356 vdso_install:
357 ifeq ($(CONFIG_VDSO),y)
358         $(Q)$(MAKE) $(build)=arch/arm/vdso $@
359 endif
360
361 # We use MRPROPER_FILES and CLEAN_FILES now
362 archclean:
363         $(Q)$(MAKE) $(clean)=$(boot)
364
365 # My testing targets (bypasses dependencies)
366 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
367
368
369 define archhelp
370   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
371   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
372   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
373   echo  '  uImage        - U-Boot wrapped zImage'
374   echo  '  bootpImage    - Combined zImage and initial RAM disk'
375   echo  '                  (supply initrd image via make variable INITRD=<path>)'
376   echo  '* dtbs          - Build device tree blobs for enabled boards'
377   echo  '  dtbs_install  - Install dtbs to $(INSTALL_DTBS_PATH)'
378   echo  '  install       - Install uncompressed kernel'
379   echo  '  zinstall      - Install compressed kernel'
380   echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
381   echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
382   echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
383   echo  '                  install to $$(INSTALL_PATH) and run lilo'
384   echo  '  vdso_install  - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
385 endef