52cfc714be10a5b40fc8440bbd4d2bbe140b4b3e
[GitHub/mt8127/android_kernel_alcatel_ttab.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 :=-p --no-undefined -X
17 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
18 LDFLAGS_vmlinux += --be8
19 endif
20
21 OBJCOPYFLAGS :=-O binary -R .comment -S
22 GZFLAGS :=-9
23 #KBUILD_CFLAGS +=-pipe
24
25 # Never generate .eh_frame
26 KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
27
28 # Do not use arch/arm/defconfig - it's always outdated.
29 # Select a platform tht is kept up-to-date
30 KBUILD_DEFCONFIG := versatile_defconfig
31
32 # defines filename extension depending memory management type.
33 ifeq ($(CONFIG_MMU),)
34 MMUEXT := -nommu
35 KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
36 endif
37
38 ifeq ($(CONFIG_FRAME_POINTER),y)
39 KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
40 endif
41
42 ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
43 KBUILD_CFLAGS +=-fstack-protector
44 endif
45
46 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
47 KBUILD_CPPFLAGS += -mbig-endian
48 AS += -EB
49 LD += -EB
50 else
51 KBUILD_CPPFLAGS += -mlittle-endian
52 AS += -EL
53 LD += -EL
54 endif
55
56 comma = ,
57
58 #
59 # The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
60 # later may result in code being generated that handles signed short and signed
61 # char struct members incorrectly. So disable it.
62 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
63 #
64 KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra)
65
66 # This selects which instruction set is used.
67 # Note that GCC does not numerically define an architecture version
68 # macro, but instead defines a whole series of macros which makes
69 # testing for a specific architecture or later rather impossible.
70 arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
71 arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-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 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
76 endif
77 arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
78 arch-$(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 # This selects how we optimise for the processor.
83 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
84 tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
85 tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
86 tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
87 tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
88 tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
89 tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
90 tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
91 tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
92 tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
93 tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
94 tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
95 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
96 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
97 tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
98 tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
99 tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
100 tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
101
102 ifeq ($(CONFIG_AEABI),y)
103 CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
104 else
105 CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
106 endif
107
108 ifeq ($(CONFIG_ARM_UNWIND),y)
109 CFLAGS_ABI +=-funwind-tables
110 endif
111
112 ifeq ($(CONFIG_THUMB2_KERNEL),y)
113 AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
114 AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
115 CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
116 AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
117 # Work around buggy relocation from gas if requested:
118 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
119 CFLAGS_MODULE +=-fno-optimize-sibling-calls
120 endif
121 else
122 CFLAGS_ISA :=$(call cc-option,-marm,)
123 AFLAGS_ISA :=$(CFLAGS_ISA)
124 endif
125
126 # Need -Uarm for gcc < 3.x
127 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
128 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
129
130 CHECKFLAGS += -D__arm__
131
132 #Default value
133 head-y := arch/arm/kernel/head$(MMUEXT).o
134 textofs-y := 0x00008000
135 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
136 # We don't want the htc bootloader to corrupt kernel during resume
137 textofs-$(CONFIG_PM_H1940) := 0x00108000
138 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
139 ifeq ($(CONFIG_ARCH_SA1100),y)
140 textofs-$(CONFIG_SA1111) := 0x00208000
141 endif
142 textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
143 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
144 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
145
146 # Machine directory name. This list is sorted alphanumerically
147 # by CONFIG_* macro name.
148 machine-$(CONFIG_ARCH_AT91) += at91
149 machine-$(CONFIG_ARCH_BCM) += bcm
150 machine-$(CONFIG_ARCH_BCM2835) += bcm2835
151 machine-$(CONFIG_ARCH_CLPS711X) += clps711x
152 machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
153 machine-$(CONFIG_ARCH_DAVINCI) += davinci
154 machine-$(CONFIG_ARCH_DOVE) += dove
155 machine-$(CONFIG_ARCH_EBSA110) += ebsa110
156 machine-$(CONFIG_ARCH_EP93XX) += ep93xx
157 machine-$(CONFIG_ARCH_GEMINI) += gemini
158 machine-$(CONFIG_ARCH_HIGHBANK) += highbank
159 machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
160 machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
161 machine-$(CONFIG_ARCH_IOP32X) += iop32x
162 machine-$(CONFIG_ARCH_IOP33X) += iop33x
163 machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
164 machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood
165 machine-$(CONFIG_ARCH_KS8695) += ks8695
166 machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
167 machine-$(CONFIG_ARCH_MMP) += mmp
168 machine-$(CONFIG_ARCH_MSM) += msm
169 machine-$(CONFIG_ARCH_MT6582) += mt6582
170 machine-$(CONFIG_ARCH_MT6592) += mt6592
171 machine-$(CONFIG_ARCH_MT6572) += mt6572
172 machine-$(CONFIG_ARCH_MT8127) += mt8127
173 machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
174 machine-$(CONFIG_ARCH_MXC) += imx
175 machine-$(CONFIG_ARCH_MXS) += mxs
176 machine-$(CONFIG_ARCH_MVEBU) += mvebu
177 machine-$(CONFIG_ARCH_NETX) += netx
178 machine-$(CONFIG_ARCH_NOMADIK) += nomadik
179 machine-$(CONFIG_ARCH_OMAP1) += omap1
180 machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
181 machine-$(CONFIG_ARCH_ORION5X) += orion5x
182 machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
183 machine-$(CONFIG_ARCH_PRIMA2) += prima2
184 machine-$(CONFIG_ARCH_PXA) += pxa
185 machine-$(CONFIG_ARCH_REALVIEW) += realview
186 machine-$(CONFIG_ARCH_RPC) += rpc
187 machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
188 machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
189 machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0
190 machine-$(CONFIG_ARCH_S5PC100) += s5pc100
191 machine-$(CONFIG_ARCH_S5PV210) += s5pv210
192 machine-$(CONFIG_ARCH_EXYNOS) += exynos
193 machine-$(CONFIG_ARCH_SA1100) += sa1100
194 machine-$(CONFIG_ARCH_SHARK) += shark
195 machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
196 machine-$(CONFIG_ARCH_TEGRA) += tegra
197 machine-$(CONFIG_ARCH_U300) += u300
198 machine-$(CONFIG_ARCH_U8500) += ux500
199 machine-$(CONFIG_ARCH_VERSATILE) += versatile
200 machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
201 machine-$(CONFIG_ARCH_VT8500) += vt8500
202 machine-$(CONFIG_ARCH_W90X900) += w90x900
203 machine-$(CONFIG_FOOTBRIDGE) += footbridge
204 machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
205 machine-$(CONFIG_PLAT_SPEAR) += spear
206 machine-$(CONFIG_ARCH_VIRT) += virt
207 machine-$(CONFIG_ARCH_ZYNQ) += zynq
208 machine-$(CONFIG_ARCH_SUNXI) += sunxi
209
210 # Platform directory name. This list is sorted alphanumerically
211 # by CONFIG_* macro name.
212 plat-$(CONFIG_ARCH_OMAP) += omap
213 plat-$(CONFIG_ARCH_S3C64XX) += samsung
214 plat-$(CONFIG_PLAT_IOP) += iop
215 plat-$(CONFIG_PLAT_ORION) += orion
216 plat-$(CONFIG_PLAT_PXA) += pxa
217 plat-$(CONFIG_PLAT_S3C24XX) += samsung
218 plat-$(CONFIG_PLAT_S5P) += samsung
219 plat-$(CONFIG_PLAT_VERSATILE) += versatile
220
221 ifeq ($(CONFIG_ARCH_EBSA110),y)
222 # This is what happens if you forget the IOCS16 line.
223 # PCMCIA cards stop working.
224 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
225 export CFLAGS_3c589_cs.o
226 endif
227
228 # The byte offset of the kernel image in RAM from the start of RAM.
229 TEXT_OFFSET := $(textofs-y)
230
231 # The first directory contains additional information for the boot setup code
232 ifneq ($(machine-y),)
233 MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
234 else
235 MACHINE :=
236 endif
237 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
238 MACHINE :=
239 endif
240
241 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
242 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
243
244 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
245 ifeq ($(KBUILD_SRC),)
246 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
247 else
248 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
249 endif
250 endif
251
252 ifneq ($(filter y,$(CONFIG_ARCH_MT6752) $(CONFIG_ARCH_MT6732) $(CONFIG_ARCH_MT6595) $(CONFIG_ARCH_MT6795)),)
253 MTK_PLATFORM := $(subst ",,$(CONFIG_MTK_PLATFORM))
254 KBUILD_CPPFLAGS += -I$(srctree)/drivers/misc/mediatek/mach/$(MTK_PLATFORM)/include
255 endif
256
257 export TEXT_OFFSET GZFLAGS MMUEXT
258
259 # Do we have FASTFPE?
260 FASTFPE :=arch/arm/fastfpe
261 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
262 FASTFPE_OBJ :=$(FASTFPE)/
263 endif
264
265 core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
266 core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
267 core-$(CONFIG_VFP) += arch/arm/vfp/
268 core-$(CONFIG_XEN) += arch/arm/xen/
269 core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
270
271 # If we have a machine-specific directory, then include it in the build.
272 core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
273 core-y += arch/arm/net/
274 core-y += arch/arm/crypto/
275 core-y += $(machdirs) $(platdirs)
276
277 drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
278
279 libs-y := arch/arm/lib/ $(libs-y)
280
281 # Default target when executing plain make
282 ifeq ($(CONFIG_XIP_KERNEL),y)
283 KBUILD_IMAGE := xipImage
284 else ifeq ($(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE),y)
285 KBUILD_IMAGE := zImage-dtb
286 else
287 KBUILD_IMAGE := zImage
288 endif
289
290 # Build the DT binary blobs if we have OF configured
291 ifeq ($(CONFIG_USE_OF),y)
292 KBUILD_DTBS := dtbs
293 endif
294
295 MTK_PLATFORM := $(CONFIG_MTK_PLATFORM:"%"=%)
296 MTK_PROJECT := $(CONFIG_ARCH_MTK_PROJECT:"%"=%)
297 export MTK_PLATFORM MTK_PROJECT MTK_TARGET_PROJECT
298
299 all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
300
301 boot := arch/arm/boot
302
303 archprepare:
304 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
305 -include $(srctree)/scripts/ptgen/$(MTK_PLATFORM)/ptgen.mk
306 -include $(srctree)/scripts/drvgen/drvgen.mk
307 -include $(srctree)/scripts/ptgen/$(MTK_PLATFORM)/ptgen.mk
308 # Convert bzImage to zImage
309 bzImage: zImage
310
311 zImage Image xipImage bootpImage uImage: vmlinux
312 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
313
314 zinstall uinstall install: vmlinux
315 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
316
317 %.dtb: scripts
318 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
319
320 dtbs: scripts
321 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs
322
323 zImage-dtb: vmlinux scripts dtbs
324 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
325
326 # We use MRPROPER_FILES and CLEAN_FILES now
327 archclean:
328 $(Q)$(MAKE) $(clean)=$(boot)
329
330 # My testing targets (bypasses dependencies)
331 bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
332 i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
333
334
335 define archhelp
336 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
337 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
338 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
339 echo ' uImage - U-Boot wrapped zImage'
340 echo ' bootpImage - Combined zImage and initial RAM disk'
341 echo ' (supply initrd image via make variable INITRD=<path>)'
342 echo '* dtbs - Build device tree blobs for enabled boards'
343 echo ' install - Install uncompressed kernel'
344 echo ' zinstall - Install compressed kernel'
345 echo ' uinstall - Install U-Boot wrapped compressed kernel'
346 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
347 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
348 echo ' install to $$(INSTALL_PATH) and run lilo'
349 endef