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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
13LDFLAGS_vmlinux :=-p --no-undefined -X
14ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15LDFLAGS_vmlinux += --be8
16endif
17
18OBJCOPYFLAGS :=-O binary -R .comment -S
19GZFLAGS :=-9
20#KBUILD_CFLAGS +=-pipe
21# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
22KBUILD_CFLAGS +=$(call cc-option,-marm,)
23
24# Never generate .eh_frame
25KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
26
27# Do not use arch/arm/defconfig - it's always outdated.
28# Select a platform tht is kept up-to-date
29KBUILD_DEFCONFIG := versatile_defconfig
30
31# defines filename extension depending memory management type.
32ifeq ($(CONFIG_MMU),)
33MMUEXT := -nommu
34endif
35
36ifeq ($(CONFIG_FRAME_POINTER),y)
37KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
38endif
39
40ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
41KBUILD_CFLAGS +=-fstack-protector
42endif
43
44ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
45KBUILD_CPPFLAGS += -mbig-endian
46AS += -EB
47LD += -EB
48else
49KBUILD_CPPFLAGS += -mlittle-endian
50AS += -EL
51LD += -EL
52endif
53
54comma = ,
55
56# This selects which instruction set is used.
57# Note that GCC does not numerically define an architecture version
58# macro, but instead defines a whole series of macros which makes
59# testing for a specific architecture or later rather impossible.
60arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
61arch-$(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
64ifeq ($(CONFIG_CPU_32v6),y)
65arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
66endif
67arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
68arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
69arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
70arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
71
72# This selects how we optimise for the processor.
73tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
74tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
75tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
76tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
77tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
78tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
79tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
80tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
81tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
82tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
83tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
84tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
85tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
86tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
87tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
88tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
89tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
90tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
91
92ifeq ($(CONFIG_AEABI),y)
93CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
94else
95CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
96endif
97
98ifeq ($(CONFIG_ARM_UNWIND),y)
99CFLAGS_ABI +=-funwind-tables
100endif
101
102ifeq ($(CONFIG_THUMB2_KERNEL),y)
103AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
104AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
105CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
106AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
107# Work around buggy relocation from gas if requested:
108ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
109CFLAGS_MODULE +=-fno-optimize-sibling-calls
110endif
111endif
112
113# Need -Uarm for gcc < 3.x
114KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
115KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
116
117CHECKFLAGS += -D__arm__
118
119#Default value
120head-y := arch/arm/kernel/head$(MMUEXT).o
121textofs-y := 0x00008000
122textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
123# We don't want the htc bootloader to corrupt kernel during resume
124textofs-$(CONFIG_PM_H1940) := 0x00108000
125# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
126ifeq ($(CONFIG_ARCH_SA1100),y)
127textofs-$(CONFIG_SA1111) := 0x00208000
128endif
129textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
130textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
131textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
132
133# Machine directory name. This list is sorted alphanumerically
134# by CONFIG_* macro name.
135machine-$(CONFIG_ARCH_AT91) := at91
136machine-$(CONFIG_ARCH_BCMRING) := bcmring
137machine-$(CONFIG_ARCH_CLPS711X) := clps711x
138machine-$(CONFIG_ARCH_CNS3XXX) := cns3xxx
139machine-$(CONFIG_ARCH_DAVINCI) := davinci
140machine-$(CONFIG_ARCH_DOVE) := dove
141machine-$(CONFIG_ARCH_EBSA110) := ebsa110
142machine-$(CONFIG_ARCH_EP93XX) := ep93xx
143machine-$(CONFIG_ARCH_GEMINI) := gemini
144machine-$(CONFIG_ARCH_H720X) := h720x
145machine-$(CONFIG_ARCH_HIGHBANK) := highbank
146machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
147machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
148machine-$(CONFIG_ARCH_IOP32X) := iop32x
149machine-$(CONFIG_ARCH_IOP33X) := iop33x
150machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
151machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
152machine-$(CONFIG_ARCH_KS8695) := ks8695
153machine-$(CONFIG_ARCH_LPC32XX) := lpc32xx
154machine-$(CONFIG_ARCH_MMP) := mmp
155machine-$(CONFIG_ARCH_MSM) := msm
156machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
157machine-$(CONFIG_ARCH_IMX_V4_V5) := imx
158machine-$(CONFIG_ARCH_IMX_V6_V7) := imx
159machine-$(CONFIG_ARCH_MXS) := mxs
160machine-$(CONFIG_ARCH_NETX) := netx
161machine-$(CONFIG_ARCH_NOMADIK) := nomadik
162machine-$(CONFIG_ARCH_OMAP1) := omap1
163machine-$(CONFIG_ARCH_OMAP2PLUS) := omap2
164machine-$(CONFIG_ARCH_ORION5X) := orion5x
165machine-$(CONFIG_ARCH_PICOXCELL) := picoxcell
166machine-$(CONFIG_ARCH_PNX4008) := pnx4008
167machine-$(CONFIG_ARCH_PRIMA2) := prima2
168machine-$(CONFIG_ARCH_PXA) := pxa
169machine-$(CONFIG_ARCH_REALVIEW) := realview
170machine-$(CONFIG_ARCH_RPC) := rpc
171machine-$(CONFIG_ARCH_S3C24XX) := s3c24xx s3c2412 s3c2440
172machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx
173machine-$(CONFIG_ARCH_S5P64X0) := s5p64x0
174machine-$(CONFIG_ARCH_S5PC100) := s5pc100
175machine-$(CONFIG_ARCH_S5PV210) := s5pv210
176machine-$(CONFIG_ARCH_EXYNOS4) := exynos
177machine-$(CONFIG_ARCH_EXYNOS5) := exynos
178machine-$(CONFIG_ARCH_SA1100) := sa1100
179machine-$(CONFIG_ARCH_SHARK) := shark
180machine-$(CONFIG_ARCH_SHMOBILE) := shmobile
181machine-$(CONFIG_ARCH_TEGRA) := tegra
182machine-$(CONFIG_ARCH_U300) := u300
183machine-$(CONFIG_ARCH_U8500) := ux500
184machine-$(CONFIG_ARCH_VERSATILE) := versatile
185machine-$(CONFIG_ARCH_VEXPRESS) := vexpress
186machine-$(CONFIG_ARCH_VT8500) := vt8500
187machine-$(CONFIG_ARCH_W90X900) := w90x900
188machine-$(CONFIG_FOOTBRIDGE) := footbridge
189machine-$(CONFIG_MACH_SPEAR1310) := spear13xx
190machine-$(CONFIG_MACH_SPEAR1340) := spear13xx
191machine-$(CONFIG_MACH_SPEAR300) := spear3xx
192machine-$(CONFIG_MACH_SPEAR310) := spear3xx
193machine-$(CONFIG_MACH_SPEAR320) := spear3xx
194machine-$(CONFIG_MACH_SPEAR600) := spear6xx
195machine-$(CONFIG_ARCH_ZYNQ) := zynq
196
197# Platform directory name. This list is sorted alphanumerically
198# by CONFIG_* macro name.
199plat-$(CONFIG_ARCH_MXC) := mxc
200plat-$(CONFIG_ARCH_OMAP) := omap
201plat-$(CONFIG_ARCH_S3C64XX) := samsung
202plat-$(CONFIG_ARCH_ZYNQ) := versatile
203plat-$(CONFIG_PLAT_IOP) := iop
204plat-$(CONFIG_PLAT_NOMADIK) := nomadik
205plat-$(CONFIG_PLAT_ORION) := orion
206plat-$(CONFIG_PLAT_PXA) := pxa
207plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx samsung
208plat-$(CONFIG_PLAT_S5P) := samsung
209plat-$(CONFIG_PLAT_SPEAR) := spear
210plat-$(CONFIG_PLAT_VERSATILE) := versatile
211
212ifeq ($(CONFIG_ARCH_EBSA110),y)
213# This is what happens if you forget the IOCS16 line.
214# PCMCIA cards stop working.
215CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
216export CFLAGS_3c589_cs.o
217endif
218
219# The byte offset of the kernel image in RAM from the start of RAM.
220TEXT_OFFSET := $(textofs-y)
221
222# The first directory contains additional information for the boot setup code
223ifneq ($(machine-y),)
224MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
225else
226MACHINE :=
227endif
228
229machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
230platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
231
232ifeq ($(KBUILD_SRC),)
233KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
234else
235KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
236endif
237
238export TEXT_OFFSET GZFLAGS MMUEXT
239
240# Do we have FASTFPE?
241FASTFPE :=arch/arm/fastfpe
242ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
243FASTFPE_OBJ :=$(FASTFPE)/
244endif
245
246core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe
247core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
248core-$(CONFIG_VFP) += arch/arm/vfp/
249
250# If we have a machine-specific directory, then include it in the build.
251core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
252core-y += arch/arm/net/
253core-y += $(machdirs) $(platdirs)
254
255drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
256
257libs-y := arch/arm/lib/ $(libs-y)
258
259# Default target when executing plain make
260ifeq ($(CONFIG_XIP_KERNEL),y)
261KBUILD_IMAGE := xipImage
262else
263KBUILD_IMAGE := zImage
264endif
265
266all: $(KBUILD_IMAGE)
267
268boot := arch/arm/boot
269
270archprepare:
271 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
272
273# Convert bzImage to zImage
274bzImage: zImage
275
276zImage Image xipImage bootpImage uImage: vmlinux
277 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
278
279zinstall uinstall install: vmlinux
280 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
281
282%.dtb: scripts
283 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
284
285dtbs: scripts
286 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
287
288# We use MRPROPER_FILES and CLEAN_FILES now
289archclean:
290 $(Q)$(MAKE) $(clean)=$(boot)
291
292# My testing targets (bypasses dependencies)
293bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
294i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
295
296
297define archhelp
298 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
299 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
300 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
301 echo ' uImage - U-Boot wrapped zImage'
302 echo ' bootpImage - Combined zImage and initial RAM disk'
303 echo ' (supply initrd image via make variable INITRD=<path>)'
304 echo ' dtbs - Build device tree blobs for enabled boards'
305 echo ' install - Install uncompressed kernel'
306 echo ' zinstall - Install compressed kernel'
307 echo ' uinstall - Install U-Boot wrapped compressed kernel'
308 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
309 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
310 echo ' install to $$(INSTALL_PATH) and run lilo'
311endef
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
13LDFLAGS_vmlinux := --no-undefined -X --pic-veneer
14ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15LDFLAGS_vmlinux += --be8
16KBUILD_LDFLAGS_MODULE += --be8
17endif
18
19ifeq ($(CONFIG_ARM_MODULE_PLTS),y)
20KBUILD_LDS_MODULE += $(srctree)/arch/arm/kernel/module.lds
21endif
22
23GZFLAGS :=-9
24#KBUILD_CFLAGS +=-pipe
25
26# Never generate .eh_frame
27KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
28
29# This should work on most of the modern platforms
30KBUILD_DEFCONFIG := multi_v7_defconfig
31
32# defines filename extension depending memory management type.
33ifeq ($(CONFIG_MMU),)
34MMUEXT := -nommu
35KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
36endif
37
38ifeq ($(CONFIG_FRAME_POINTER),y)
39KBUILD_CFLAGS +=-fno-omit-frame-pointer
40ifeq ($(CONFIG_CC_IS_GCC),y)
41KBUILD_CFLAGS += -mapcs -mno-sched-prolog
42endif
43endif
44
45ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
46KBUILD_CPPFLAGS += -mbig-endian
47CHECKFLAGS += -D__ARMEB__
48AS += -EB
49KBUILD_LDFLAGS += -EB
50else
51KBUILD_CPPFLAGS += -mlittle-endian
52CHECKFLAGS += -D__ARMEL__
53AS += -EL
54KBUILD_LDFLAGS += -EL
55endif
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#
63KBUILD_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.
69arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
70arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
71arch-$(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
74ifeq ($(CONFIG_CPU_32v6),y)
75arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
76endif
77arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
78arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t
79arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4
80arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3m
81
82# Evaluate arch cc-option calls now
83arch-y := $(arch-y)
84
85# This selects how we optimise for the processor.
86tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi
87tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
88tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi
89tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi
90tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi
91tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
92tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi
93tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi
94tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi
95tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi
96tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi
97tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110
98tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100
99tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
100tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
101tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale)
102tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
103tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
104
105# Evaluate tune cc-option calls now
106tune-y := $(tune-y)
107
108ifeq ($(CONFIG_AEABI),y)
109CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp
110else
111CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
112endif
113
114ifeq ($(CONFIG_ARM_UNWIND),y)
115CFLAGS_ABI +=-funwind-tables
116endif
117
118ifeq ($(CONFIG_CC_IS_CLANG),y)
119CFLAGS_ABI += -meabi gnu
120endif
121
122# Accept old syntax despite ".syntax unified"
123AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
124
125ifeq ($(CONFIG_THUMB2_KERNEL),y)
126CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN)
127AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
128# Work around buggy relocation from gas if requested:
129ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
130KBUILD_CFLAGS_MODULE +=-fno-optimize-sibling-calls
131endif
132else
133CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
134AFLAGS_ISA :=$(CFLAGS_ISA)
135endif
136
137# Need -Uarm for gcc < 3.x
138KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
139KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
140
141CHECKFLAGS += -D__arm__
142
143#Default value
144head-y := arch/arm/kernel/head$(MMUEXT).o
145
146# Text offset. This list is sorted numerically by address in order to
147# provide a means to avoid/resolve conflicts in multi-arch kernels.
148textofs-y := 0x00008000
149# We don't want the htc bootloader to corrupt kernel during resume
150textofs-$(CONFIG_PM_H1940) := 0x00108000
151# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
152ifeq ($(CONFIG_ARCH_SA1100),y)
153textofs-$(CONFIG_SA1111) := 0x00208000
154endif
155textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
156textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
157textofs-$(CONFIG_ARCH_MESON) := 0x00208000
158textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
159
160# Machine directory name. This list is sorted alphanumerically
161# by CONFIG_* macro name.
162machine-$(CONFIG_ARCH_ACTIONS) += actions
163machine-$(CONFIG_ARCH_ALPINE) += alpine
164machine-$(CONFIG_ARCH_ARTPEC) += artpec
165machine-$(CONFIG_ARCH_ASPEED) += aspeed
166machine-$(CONFIG_ARCH_AT91) += at91
167machine-$(CONFIG_ARCH_AXXIA) += axxia
168machine-$(CONFIG_ARCH_BCM) += bcm
169machine-$(CONFIG_ARCH_BERLIN) += berlin
170machine-$(CONFIG_ARCH_CLPS711X) += clps711x
171machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
172machine-$(CONFIG_ARCH_DAVINCI) += davinci
173machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor
174machine-$(CONFIG_ARCH_DOVE) += dove
175machine-$(CONFIG_ARCH_EBSA110) += ebsa110
176machine-$(CONFIG_ARCH_EFM32) += efm32
177machine-$(CONFIG_ARCH_EP93XX) += ep93xx
178machine-$(CONFIG_ARCH_EXYNOS) += exynos
179machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge
180machine-$(CONFIG_ARCH_GEMINI) += gemini
181machine-$(CONFIG_ARCH_HIGHBANK) += highbank
182machine-$(CONFIG_ARCH_HISI) += hisi
183machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
184machine-$(CONFIG_ARCH_IOP32X) += iop32x
185machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
186machine-$(CONFIG_ARCH_KEYSTONE) += keystone
187machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx
188machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
189machine-$(CONFIG_ARCH_MESON) += meson
190machine-$(CONFIG_ARCH_MMP) += mmp
191machine-$(CONFIG_ARCH_MPS2) += vexpress
192machine-$(CONFIG_ARCH_MOXART) += moxart
193machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
194machine-$(CONFIG_ARCH_MVEBU) += mvebu
195machine-$(CONFIG_ARCH_MXC) += imx
196machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
197machine-$(CONFIG_ARCH_MILBEAUT) += milbeaut
198machine-$(CONFIG_ARCH_MXS) += mxs
199machine-$(CONFIG_ARCH_NOMADIK) += nomadik
200machine-$(CONFIG_ARCH_NPCM) += npcm
201machine-$(CONFIG_ARCH_NSPIRE) += nspire
202machine-$(CONFIG_ARCH_OXNAS) += oxnas
203machine-$(CONFIG_ARCH_OMAP1) += omap1
204machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
205machine-$(CONFIG_ARCH_ORION5X) += orion5x
206machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
207machine-$(CONFIG_ARCH_PXA) += pxa
208machine-$(CONFIG_ARCH_QCOM) += qcom
209machine-$(CONFIG_ARCH_RDA) += rda
210machine-$(CONFIG_ARCH_REALVIEW) += realview
211machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
212machine-$(CONFIG_ARCH_RPC) += rpc
213machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
214machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
215machine-$(CONFIG_ARCH_S5PV210) += s5pv210
216machine-$(CONFIG_ARCH_SA1100) += sa1100
217machine-$(CONFIG_ARCH_RENESAS) += shmobile
218machine-$(CONFIG_ARCH_SIRF) += prima2
219machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
220machine-$(CONFIG_ARCH_STI) += sti
221machine-$(CONFIG_ARCH_STM32) += stm32
222machine-$(CONFIG_ARCH_SUNXI) += sunxi
223machine-$(CONFIG_ARCH_TANGO) += tango
224machine-$(CONFIG_ARCH_TEGRA) += tegra
225machine-$(CONFIG_ARCH_U300) += u300
226machine-$(CONFIG_ARCH_U8500) += ux500
227machine-$(CONFIG_ARCH_VERSATILE) += versatile
228machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
229machine-$(CONFIG_ARCH_VT8500) += vt8500
230machine-$(CONFIG_ARCH_ZX) += zx
231machine-$(CONFIG_ARCH_ZYNQ) += zynq
232machine-$(CONFIG_PLAT_SPEAR) += spear
233
234# Platform directory name. This list is sorted alphanumerically
235# by CONFIG_* macro name.
236plat-$(CONFIG_ARCH_EXYNOS) += samsung
237plat-$(CONFIG_ARCH_OMAP) += omap
238plat-$(CONFIG_ARCH_S3C64XX) += samsung
239plat-$(CONFIG_ARCH_S5PV210) += samsung
240plat-$(CONFIG_PLAT_ORION) += orion
241plat-$(CONFIG_PLAT_PXA) += pxa
242plat-$(CONFIG_PLAT_S3C24XX) += samsung
243plat-$(CONFIG_PLAT_VERSATILE) += versatile
244
245ifeq ($(CONFIG_ARCH_EBSA110),y)
246# This is what happens if you forget the IOCS16 line.
247# PCMCIA cards stop working.
248CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
249export CFLAGS_3c589_cs.o
250endif
251
252# The byte offset of the kernel image in RAM from the start of RAM.
253TEXT_OFFSET := $(textofs-y)
254
255# The first directory contains additional information for the boot setup code
256ifneq ($(machine-y),)
257MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
258else
259MACHINE :=
260endif
261ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
262MACHINE :=
263endif
264
265machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
266platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
267
268ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
269ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y)
270KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
271endif
272endif
273
274export TEXT_OFFSET GZFLAGS MMUEXT
275
276core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe
277# Put arch/arm/fastfpe/ to use this.
278core-$(CONFIG_FPE_FASTFPE) += $(patsubst $(srctree)/%,%,$(wildcard $(srctree)/arch/arm/fastfpe/))
279core-$(CONFIG_VFP) += arch/arm/vfp/
280core-$(CONFIG_XEN) += arch/arm/xen/
281core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
282core-$(CONFIG_VDSO) += arch/arm/vdso/
283
284# If we have a machine-specific directory, then include it in the build.
285core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
286core-y += arch/arm/probes/
287core-y += arch/arm/net/
288core-y += arch/arm/crypto/
289core-y += $(machdirs) $(platdirs)
290
291# For cleaning
292core- += $(patsubst %,arch/arm/mach-%/, $(machine-))
293core- += $(patsubst %,arch/arm/plat-%/, $(plat-))
294
295drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
296
297libs-y := arch/arm/lib/ $(libs-y)
298
299# Default target when executing plain make
300boot := arch/arm/boot
301ifeq ($(CONFIG_XIP_KERNEL),y)
302KBUILD_IMAGE := $(boot)/xipImage
303else
304KBUILD_IMAGE := $(boot)/zImage
305endif
306
307ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)
308prepare: stack_protector_prepare
309stack_protector_prepare: prepare0
310 $(eval KBUILD_CFLAGS += \
311 -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \
312 awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\
313 include/generated/asm-offsets.h) \
314 -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \
315 awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\
316 include/generated/asm-offsets.h))
317endif
318
319all: $(notdir $(KBUILD_IMAGE))
320
321
322archheaders:
323 $(Q)$(MAKE) $(build)=arch/arm/tools uapi
324
325archprepare:
326 $(Q)$(MAKE) $(build)=arch/arm/tools kapi
327
328# Convert bzImage to zImage
329bzImage: zImage
330
331BOOT_TARGETS = zImage Image xipImage bootpImage uImage
332INSTALL_TARGETS = zinstall uinstall install
333
334PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
335
336bootpImage uImage: zImage
337zImage: Image
338
339$(BOOT_TARGETS): vmlinux
340 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
341 @$(kecho) ' Kernel: $(boot)/$@ is ready'
342
343$(INSTALL_TARGETS):
344 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
345
346PHONY += vdso_install
347vdso_install:
348ifeq ($(CONFIG_VDSO),y)
349 $(Q)$(MAKE) $(build)=arch/arm/vdso $@
350endif
351
352# We use MRPROPER_FILES and CLEAN_FILES now
353archclean:
354 $(Q)$(MAKE) $(clean)=$(boot)
355
356# My testing targets (bypasses dependencies)
357bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
358
359
360define archhelp
361 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
362 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
363 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
364 echo ' uImage - U-Boot wrapped zImage'
365 echo ' bootpImage - Combined zImage and initial RAM disk'
366 echo ' (supply initrd image via make variable INITRD=<path>)'
367 echo ' install - Install uncompressed kernel'
368 echo ' zinstall - Install compressed kernel'
369 echo ' uinstall - Install U-Boot wrapped compressed kernel'
370 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
371 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
372 echo ' install to $$(INSTALL_PATH) and run lilo'
373 echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
374endef