Merge tag 'char-misc-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
[linux-2.6-microblaze.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 LDFLAGS_vmlinux := --no-undefined -X --pic-veneer -z norelro
14 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15 LDFLAGS_vmlinux += --be8
16 KBUILD_LDFLAGS_MODULE   += --be8
17 endif
18
19 GZFLAGS         :=-9
20 #KBUILD_CFLAGS  +=-pipe
21
22 # Never generate .eh_frame
23 KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
24
25 # This should work on most of the modern platforms
26 KBUILD_DEFCONFIG := multi_v7_defconfig
27
28 # defines filename extension depending memory management type.
29 ifeq ($(CONFIG_MMU),)
30 MMUEXT          := -nommu
31 KBUILD_CFLAGS   += $(call cc-option,-mno-unaligned-access)
32 endif
33
34 ifeq ($(CONFIG_FRAME_POINTER),y)
35 KBUILD_CFLAGS   +=-fno-omit-frame-pointer
36 ifeq ($(CONFIG_CC_IS_GCC),y)
37 KBUILD_CFLAGS += -mapcs -mno-sched-prolog
38 endif
39 endif
40
41 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
42 KBUILD_CPPFLAGS += -mbig-endian
43 CHECKFLAGS      += -D__ARMEB__
44 KBUILD_LDFLAGS  += -EB
45 else
46 KBUILD_CPPFLAGS += -mlittle-endian
47 CHECKFLAGS      += -D__ARMEL__
48 KBUILD_LDFLAGS  += -EL
49 endif
50
51 #
52 # The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
53 # later may result in code being generated that handles signed short and signed
54 # char struct members incorrectly. So disable it.
55 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
56 #
57 KBUILD_CFLAGS   += $(call cc-option,-fno-ipa-sra)
58
59 # This selects which instruction set is used.
60 # Note that GCC does not numerically define an architecture version
61 # macro, but instead defines a whole series of macros which makes
62 # testing for a specific architecture or later rather impossible.
63 arch-$(CONFIG_CPU_32v7M)        =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
64 arch-$(CONFIG_CPU_32v7)         =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
65 arch-$(CONFIG_CPU_32v6)         =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
66 # Only override the compiler option if ARMv6. The ARMv6K extensions are
67 # always available in ARMv7
68 ifeq ($(CONFIG_CPU_32v6),y)
69 arch-$(CONFIG_CPU_32v6K)        =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
70 endif
71 arch-$(CONFIG_CPU_32v5)         =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
72 arch-$(CONFIG_CPU_32v4T)        =-D__LINUX_ARM_ARCH__=4 -march=armv4t
73 arch-$(CONFIG_CPU_32v4)         =-D__LINUX_ARM_ARCH__=4 -march=armv4
74 arch-$(CONFIG_CPU_32v3)         =-D__LINUX_ARM_ARCH__=3 -march=armv3m
75
76 # Evaluate arch cc-option calls now
77 arch-y := $(arch-y)
78
79 # This selects how we optimise for the processor.
80 tune-$(CONFIG_CPU_ARM7TDMI)     =-mtune=arm7tdmi
81 tune-$(CONFIG_CPU_ARM720T)      =-mtune=arm7tdmi
82 tune-$(CONFIG_CPU_ARM740T)      =-mtune=arm7tdmi
83 tune-$(CONFIG_CPU_ARM9TDMI)     =-mtune=arm9tdmi
84 tune-$(CONFIG_CPU_ARM940T)      =-mtune=arm9tdmi
85 tune-$(CONFIG_CPU_ARM946E)      =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
86 tune-$(CONFIG_CPU_ARM920T)      =-mtune=arm9tdmi
87 tune-$(CONFIG_CPU_ARM922T)      =-mtune=arm9tdmi
88 tune-$(CONFIG_CPU_ARM925T)      =-mtune=arm9tdmi
89 tune-$(CONFIG_CPU_ARM926T)      =-mtune=arm9tdmi
90 tune-$(CONFIG_CPU_FA526)        =-mtune=arm9tdmi
91 tune-$(CONFIG_CPU_SA110)        =-mtune=strongarm110
92 tune-$(CONFIG_CPU_SA1100)       =-mtune=strongarm1100
93 tune-$(CONFIG_CPU_XSCALE)       =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
94 tune-$(CONFIG_CPU_XSC3)         =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
95 tune-$(CONFIG_CPU_FEROCEON)     =$(call cc-option,-mtune=marvell-f,-mtune=xscale)
96 tune-$(CONFIG_CPU_V6)           =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
97 tune-$(CONFIG_CPU_V6K)          =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
98
99 # Evaluate tune cc-option calls now
100 tune-y := $(tune-y)
101
102 ifeq ($(CONFIG_AEABI),y)
103 CFLAGS_ABI      :=-mabi=aapcs-linux -mfpu=vfp
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 ($(CONFIG_CC_IS_CLANG),y)
113 CFLAGS_ABI      += -meabi gnu
114 endif
115
116 # Accept old syntax despite ".syntax unified"
117 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
118
119 ifeq ($(CONFIG_THUMB2_KERNEL),y)
120 CFLAGS_ISA      :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN)
121 AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
122 else
123 CFLAGS_ISA      :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
124 AFLAGS_ISA      :=$(CFLAGS_ISA)
125 endif
126
127 # Need -Uarm for gcc < 3.x
128 KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
129 KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
130
131 CHECKFLAGS      += -D__arm__
132
133 #Default value
134 head-y          := arch/arm/kernel/head$(MMUEXT).o
135
136 # Text offset. This list is sorted numerically by address in order to
137 # provide a means to avoid/resolve conflicts in multi-arch kernels.
138 # Note: the 32kB below this value is reserved for use by the kernel
139 # during boot, and this offset is critical to the functioning of
140 # kexec-tools.
141 textofs-y       := 0x00008000
142 # We don't want the htc bootloader to corrupt kernel during resume
143 textofs-$(CONFIG_PM_H1940)      := 0x00108000
144 # RTD1195 has Boot ROM at start of address space
145 textofs-$(CONFIG_ARCH_REALTEK)  := 0x00108000
146 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
147 ifeq ($(CONFIG_ARCH_SA1100),y)
148 textofs-$(CONFIG_SA1111) := 0x00208000
149 endif
150 textofs-$(CONFIG_ARCH_IPQ40XX) := 0x00208000
151 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
152 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
153 textofs-$(CONFIG_ARCH_MESON) := 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-$(CONFIG_ARCH_ASPEED)           += aspeed
162 machine-$(CONFIG_ARCH_AT91)             += at91
163 machine-$(CONFIG_ARCH_AXXIA)            += axxia
164 machine-$(CONFIG_ARCH_BCM)              += bcm
165 machine-$(CONFIG_ARCH_BERLIN)           += berlin
166 machine-$(CONFIG_ARCH_CLPS711X)         += clps711x
167 machine-$(CONFIG_ARCH_CNS3XXX)          += cns3xxx
168 machine-$(CONFIG_ARCH_DAVINCI)          += davinci
169 machine-$(CONFIG_ARCH_DIGICOLOR)        += digicolor
170 machine-$(CONFIG_ARCH_DOVE)             += dove
171 machine-$(CONFIG_ARCH_EP93XX)           += ep93xx
172 machine-$(CONFIG_ARCH_EXYNOS)           += exynos
173 machine-$(CONFIG_ARCH_FOOTBRIDGE)       += footbridge
174 machine-$(CONFIG_ARCH_GEMINI)           += gemini
175 machine-$(CONFIG_ARCH_HIGHBANK)         += highbank
176 machine-$(CONFIG_ARCH_HISI)             += hisi
177 machine-$(CONFIG_ARCH_INTEGRATOR)       += integrator
178 machine-$(CONFIG_ARCH_IOP32X)           += iop32x
179 machine-$(CONFIG_ARCH_IXP4XX)           += ixp4xx
180 machine-$(CONFIG_ARCH_KEYSTONE)         += keystone
181 machine-$(CONFIG_ARCH_LPC18XX)          += lpc18xx
182 machine-$(CONFIG_ARCH_LPC32XX)          += lpc32xx
183 machine-$(CONFIG_ARCH_MESON)            += meson
184 machine-$(CONFIG_ARCH_MMP)              += mmp
185 machine-$(CONFIG_ARCH_MPS2)             += vexpress
186 machine-$(CONFIG_ARCH_MOXART)           += moxart
187 machine-$(CONFIG_ARCH_MV78XX0)          += mv78xx0
188 machine-$(CONFIG_ARCH_MVEBU)            += mvebu
189 machine-$(CONFIG_ARCH_MXC)              += imx
190 machine-$(CONFIG_ARCH_MEDIATEK)         += mediatek
191 machine-$(CONFIG_ARCH_MILBEAUT)         += milbeaut
192 machine-$(CONFIG_ARCH_MXS)              += mxs
193 machine-$(CONFIG_ARCH_MSTARV7)          += mstar
194 machine-$(CONFIG_ARCH_NOMADIK)          += nomadik
195 machine-$(CONFIG_ARCH_NPCM)             += npcm
196 machine-$(CONFIG_ARCH_NSPIRE)           += nspire
197 machine-$(CONFIG_ARCH_OXNAS)            += oxnas
198 machine-$(CONFIG_ARCH_OMAP1)            += omap1
199 machine-$(CONFIG_ARCH_OMAP2PLUS)        += omap2
200 machine-$(CONFIG_ARCH_ORION5X)          += orion5x
201 machine-$(CONFIG_ARCH_PXA)              += pxa
202 machine-$(CONFIG_ARCH_QCOM)             += qcom
203 machine-$(CONFIG_ARCH_RDA)              += rda
204 machine-$(CONFIG_ARCH_REALTEK)          += realtek
205 machine-$(CONFIG_ARCH_REALVIEW)         += realview
206 machine-$(CONFIG_ARCH_ROCKCHIP)         += rockchip
207 machine-$(CONFIG_ARCH_RPC)              += rpc
208 machine-$(CONFIG_PLAT_SAMSUNG)          += s3c
209 machine-$(CONFIG_ARCH_S5PV210)          += s5pv210
210 machine-$(CONFIG_ARCH_SA1100)           += sa1100
211 machine-$(CONFIG_ARCH_RENESAS)          += shmobile
212 machine-$(CONFIG_ARCH_INTEL_SOCFPGA)    += socfpga
213 machine-$(CONFIG_ARCH_STI)              += sti
214 machine-$(CONFIG_ARCH_STM32)            += stm32
215 machine-$(CONFIG_ARCH_SUNXI)            += sunxi
216 machine-$(CONFIG_ARCH_TEGRA)            += tegra
217 machine-$(CONFIG_ARCH_U8500)            += ux500
218 machine-$(CONFIG_ARCH_VERSATILE)        += versatile
219 machine-$(CONFIG_ARCH_VEXPRESS)         += vexpress
220 machine-$(CONFIG_ARCH_VT8500)           += vt8500
221 machine-$(CONFIG_ARCH_ZYNQ)             += zynq
222 machine-$(CONFIG_PLAT_SPEAR)            += spear
223
224 # Platform directory name.  This list is sorted alphanumerically
225 # by CONFIG_* macro name.
226 plat-$(CONFIG_ARCH_OMAP)        += omap
227 plat-$(CONFIG_PLAT_ORION)       += orion
228 plat-$(CONFIG_PLAT_PXA)         += pxa
229 plat-$(CONFIG_PLAT_VERSATILE)   += versatile
230
231 # The byte offset of the kernel image in RAM from the start of RAM.
232 TEXT_OFFSET := $(textofs-y)
233
234 # The first directory contains additional information for the boot setup code
235 ifneq ($(machine-y),)
236 MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
237 else
238 MACHINE  :=
239 endif
240 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
241 MACHINE  :=
242 endif
243
244 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
245 platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
246
247 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
248 ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y)
249 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
250 endif
251 endif
252
253 export  TEXT_OFFSET GZFLAGS MMUEXT
254
255 # If we have a machine-specific directory, then include it in the build.
256 core-y                          += $(machdirs) $(platdirs)
257
258 # For cleaning
259 core-                           += $(patsubst %,arch/arm/mach-%/, $(machine-))
260 core-                           += $(patsubst %,arch/arm/plat-%/, $(plat-))
261
262 libs-y                          := arch/arm/lib/ $(libs-y)
263
264 # Default target when executing plain make
265 boot := arch/arm/boot
266 ifeq ($(CONFIG_XIP_KERNEL),y)
267 KBUILD_IMAGE := $(boot)/xipImage
268 else
269 KBUILD_IMAGE := $(boot)/zImage
270 endif
271
272 ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)
273 prepare: stack_protector_prepare
274 stack_protector_prepare: prepare0
275         $(eval SSP_PLUGIN_CFLAGS := \
276                 -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell        \
277                         awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\
278                                 include/generated/asm-offsets.h)        \
279                 -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell     \
280                         awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\
281                                 include/generated/asm-offsets.h))
282         $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS))
283         $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS))
284 endif
285
286 all:    $(notdir $(KBUILD_IMAGE))
287
288
289 archheaders:
290         $(Q)$(MAKE) $(build)=arch/arm/tools uapi
291
292 archprepare:
293         $(Q)$(MAKE) $(build)=arch/arm/tools kapi
294
295 # Convert bzImage to zImage
296 bzImage: zImage
297
298 BOOT_TARGETS    = zImage Image xipImage bootpImage uImage
299 INSTALL_TARGETS = zinstall uinstall install
300
301 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
302
303 bootpImage uImage: zImage
304 zImage: Image
305
306 $(BOOT_TARGETS): vmlinux
307         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
308         @$(kecho) '  Kernel: $(boot)/$@ is ready'
309
310 $(INSTALL_TARGETS):
311         $(CONFIG_SHELL) $(srctree)/$(boot)/install.sh "$(KERNELRELEASE)" \
312         $(boot)/$(patsubst %install,%Image,$@) System.map "$(INSTALL_PATH)"
313
314 PHONY += vdso_install
315 vdso_install:
316 ifeq ($(CONFIG_VDSO),y)
317         $(Q)$(MAKE) $(build)=arch/arm/vdso $@
318 endif
319
320 # We use MRPROPER_FILES and CLEAN_FILES now
321 archclean:
322         $(Q)$(MAKE) $(clean)=$(boot)
323
324 # My testing targets (bypasses dependencies)
325 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
326
327
328 define archhelp
329   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
330   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
331   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
332   echo  '  uImage        - U-Boot wrapped zImage'
333   echo  '  bootpImage    - Combined zImage and initial RAM disk'
334   echo  '                  (supply initrd image via make variable INITRD=<path>)'
335   echo  '  install       - Install uncompressed kernel'
336   echo  '  zinstall      - Install compressed kernel'
337   echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
338   echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
339   echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
340   echo  '                  install to $$(INSTALL_PATH) and run lilo'
341   echo  '  vdso_install  - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
342 endef