1 # <<
2 # arch/arm/Makefile <<
3 # <<
4 # This file is included by the global makefile 1 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies 2 # architecture-specific flags and dependencies.
6 # 3 #
7 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
8 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
9 # for more details. 6 # for more details.
10 # 7 #
11 # Copyright (C) 1995-2001 by Russell King !! 8 # Copyright (C) 1994 by Linus Torvalds
>> 9 # Changes for PPC by Gary Thomas
>> 10 # Rewritten by Cort Dougan and Paul Mackerras
>> 11 #
12 12
13 LDFLAGS_vmlinux := --no-undefined -X --pic-ven !! 13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
14 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) !! 14 KERNELLOAD := $(CONFIG_KERNEL_START)
15 LDFLAGS_vmlinux += --be8 <<
16 KBUILD_LDFLAGS_MODULE += --be8 <<
17 endif <<
18 15
19 GZFLAGS :=-9 !! 16 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
20 #KBUILD_CFLAGS +=-pipe !! 17 CPPFLAGS += -Iarch/$(ARCH)
>> 18 AFLAGS += -Iarch/$(ARCH)
>> 19 cflags-y += -Iarch/$(ARCH) -msoft-float -pipe \
>> 20 -ffixed-r2 -Wno-uninitialized -mmultiple -mstring
>> 21 CPP = $(CC) -E $(CFLAGS)
21 22
22 # Never generate .eh_frame !! 23 cflags-$(CONFIG_4xx) += -Wa,-m405
23 KBUILD_CFLAGS += $(call cc-option,-fno-dwarf !! 24 cflags-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
24 25
25 # Disable FDPIC ABI !! 26 CFLAGS += $(cflags-y)
26 KBUILD_CFLAGS += $(call cc-option,-mno-fdpic <<
27 27
28 # This should work on most of the modern platf <<
29 KBUILD_DEFCONFIG := multi_v7_defconfig <<
30 <<
31 # defines filename extension depending memory <<
32 ifeq ($(CONFIG_MMU),) <<
33 MMUEXT := -nommu <<
34 KBUILD_CFLAGS += $(call cc-option,-mno-unali <<
35 endif <<
36 28
37 ifeq ($(CONFIG_FRAME_POINTER),y) !! 29 head-y := arch/ppc/kernel/head.o
38 KBUILD_CFLAGS +=-fno-omit-frame-pointer !! 30 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
39 ifeq ($(CONFIG_CC_IS_GCC),y) !! 31 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
40 KBUILD_CFLAGS += -mapcs -mno-sched-prolog !! 32 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
41 endif <<
42 endif <<
43 33
44 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) !! 34 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
45 KBUILD_CPPFLAGS += -mbig-endian !! 35 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
46 CHECKFLAGS += -D__ARMEB__ <<
47 KBUILD_LDFLAGS += -EB <<
48 else <<
49 KBUILD_CPPFLAGS += -mlittle-endian <<
50 CHECKFLAGS += -D__ARMEL__ <<
51 KBUILD_LDFLAGS += -EL <<
52 endif <<
53 36
54 # !! 37 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
55 # The Scalar Replacement of Aggregates (SRA) o !! 38 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
56 # later may result in code being generated tha !! 39 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
57 # char struct members incorrectly. So disable !! 40 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
58 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?i !! 41 core-$(CONFIG_XMON) += arch/ppc/xmon/
59 # !! 42 core-$(CONFIG_APUS) += arch/ppc/amiga/
60 KBUILD_CFLAGS += $(call cc-option,-fno-ipa-s !! 43 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
61 !! 44 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
62 # This selects which instruction set is used. !! 45 drivers-$(CONFIG_8260) += arch/ppc/8260_io/
63 arch-$(CONFIG_CPU_32v7M) :=-march=armv7 !! 46 drivers-$(CONFIG_OCP) += arch/ppc/ocp/
64 arch-$(CONFIG_CPU_32v7) :=-march=armv7 <<
65 arch-$(CONFIG_CPU_32v6) :=-march=armv6 <<
66 # Only override the compiler option if ARMv6. <<
67 # always available in ARMv7 <<
68 ifeq ($(CONFIG_CPU_32v6),y) <<
69 arch-$(CONFIG_CPU_32v6K) :=-march=armv6 <<
70 endif <<
71 arch-$(CONFIG_CPU_32v5) :=-march=armv5 <<
72 arch-$(CONFIG_CPU_32v4T) :=-march=armv4 <<
73 arch-$(CONFIG_CPU_32v4) :=-march=armv4 <<
74 arch-$(CONFIG_CPU_32v3) :=-march=armv3 <<
75 <<
76 # Note that GCC does not numerically define an <<
77 # macro, but instead defines a whole series of <<
78 # testing for a specific architecture or later <<
79 cpp-$(CONFIG_CPU_32v7M) :=-D__LINUX_AR <<
80 cpp-$(CONFIG_CPU_32v7) :=-D__LINUX_AR <<
81 cpp-$(CONFIG_CPU_32v6) :=-D__LINUX_AR <<
82 # Only override the compiler option if ARMv6. <<
83 # always available in ARMv7 <<
84 ifeq ($(CONFIG_CPU_32v6),y) <<
85 cpp-$(CONFIG_CPU_32v6K) :=-D__LINUX_AR <<
86 endif <<
87 cpp-$(CONFIG_CPU_32v5) :=-D__LINUX_AR <<
88 cpp-$(CONFIG_CPU_32v4T) :=-D__LINUX_AR <<
89 cpp-$(CONFIG_CPU_32v4) :=-D__LINUX_AR <<
90 cpp-$(CONFIG_CPU_32v3) :=-D__LINUX_AR <<
91 <<
92 # This selects how we optimise for the process <<
93 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7t <<
94 tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7t <<
95 tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7t <<
96 tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9t <<
97 tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9t <<
98 tune-$(CONFIG_CPU_ARM946E) :=-mtune=arm9e <<
99 tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9t <<
100 tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9t <<
101 tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9t <<
102 tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9t <<
103 tune-$(CONFIG_CPU_FA526) :=-mtune=arm9t <<
104 tune-$(CONFIG_CPU_SA110) :=-mtune=stron <<
105 tune-$(CONFIG_CPU_SA1100) :=-mtune=stron <<
106 tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscal <<
107 tune-$(CONFIG_CPU_XSC3) :=-mtune=xscal <<
108 tune-$(CONFIG_CPU_FEROCEON) :=-mtune=xscal <<
109 tune-$(CONFIG_CPU_V6) :=-mtune=arm11 <<
110 tune-$(CONFIG_CPU_V6K) :=-mtune=arm11 <<
111 <<
112 ifeq ($(CONFIG_AEABI),y) <<
113 CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp <<
114 else <<
115 CFLAGS_ABI :=$(call cc-option,-mapcs-32,- <<
116 endif <<
117 <<
118 ifeq ($(CONFIG_ARM_UNWIND),y) <<
119 CFLAGS_ABI +=-funwind-tables <<
120 endif <<
121 <<
122 ifeq ($(CONFIG_CC_IS_CLANG),y) <<
123 CFLAGS_ABI += -meabi gnu <<
124 endif <<
125 47
126 ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y) !! 48 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
127 KBUILD_CFLAGS += -mtp=cp15 <<
128 endif <<
129 49
130 # Accept old syntax despite ".syntax unified" !! 50 .PHONY: $(BOOT_TARGETS)
131 AFLAGS_NOWARN :=$(call as-option,-Wa$(comma) <<
132 51
133 # The GCC option -ffreestanding is required in !! 52 all: zImage
134 # ARM/NEON intrinsics in a non C99-compliant e <<
135 CC_FLAGS_FPU := -ffreestanding <<
136 # Enable <arm_neon.h> <<
137 CC_FLAGS_FPU += -isystem $(shell $(CC) -pri <<
138 CC_FLAGS_FPU += -march=armv7-a -mfloat-abi= <<
139 <<
140 ifeq ($(CONFIG_THUMB2_KERNEL),y) <<
141 CFLAGS_ISA :=-Wa,-mimplicit-it=always $(A <<
142 AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mt <<
143 CFLAGS_ISA +=-mthumb <<
144 else <<
145 CFLAGS_ISA :=$(call cc-option,-marm,) $(A <<
146 AFLAGS_ISA :=$(CFLAGS_ISA) <<
147 endif <<
148 53
149 # Need -Uarm for gcc < 3.x !! 54 AFLAGS_vmlinux.lds.o := -Upowerpc
150 KBUILD_CPPFLAGS +=$(cpp-y) <<
151 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) <<
152 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) <<
153 <<
154 CHECKFLAGS += -D__arm__ <<
155 <<
156 # Text offset. This list is sorted numerically <<
157 # provide a means to avoid/resolve conflicts i <<
158 # Note: the 32kB below this value is reserved <<
159 # during boot, and this offset is critical to <<
160 # kexec-tools. <<
161 textofs-y := 0x00008000 <<
162 # RTD1195 has Boot ROM at start of address spa <<
163 textofs-$(CONFIG_ARCH_REALTEK) := 0x00108000 <<
164 # SA1111 DMA bug: we don't want the kernel to <<
165 ifeq ($(CONFIG_ARCH_SA1100),y) <<
166 textofs-$(CONFIG_SA1111) := 0x00208000 <<
167 endif <<
168 textofs-$(CONFIG_ARCH_QCOM_RESERVE_SMEM) := 0x <<
169 textofs-$(CONFIG_ARCH_MESON) := 0x00208000 <<
170 textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 <<
171 <<
172 # Machine directory name. This list is sorted <<
173 # by CONFIG_* macro name. <<
174 machine-$(CONFIG_ARCH_ACTIONS) += act <<
175 machine-$(CONFIG_ARCH_ALPINE) += alp <<
176 machine-$(CONFIG_ARCH_ARTPEC) += art <<
177 machine-$(CONFIG_ARCH_ASPEED) += asp <<
178 machine-$(CONFIG_ARCH_AT91) += at9 <<
179 machine-$(CONFIG_ARCH_AXXIA) += axx <<
180 machine-$(CONFIG_ARCH_BCM) += bcm <<
181 machine-$(CONFIG_ARCH_BERLIN) += ber <<
182 machine-$(CONFIG_ARCH_CLPS711X) += clp <<
183 machine-$(CONFIG_ARCH_DAVINCI) += dav <<
184 machine-$(CONFIG_ARCH_DIGICOLOR) += dig <<
185 machine-$(CONFIG_ARCH_DOVE) += dov <<
186 machine-$(CONFIG_ARCH_EXYNOS) += exy <<
187 machine-$(CONFIG_ARCH_FOOTBRIDGE) += foo <<
188 machine-$(CONFIG_ARCH_GEMINI) += gem <<
189 machine-$(CONFIG_ARCH_HIGHBANK) += hig <<
190 machine-$(CONFIG_ARCH_HISI) += his <<
191 machine-$(CONFIG_ARCH_HPE) += hpe <<
192 machine-$(CONFIG_ARCH_IXP4XX) += ixp <<
193 machine-$(CONFIG_ARCH_KEYSTONE) += key <<
194 machine-$(CONFIG_ARCH_LPC18XX) += lpc <<
195 machine-$(CONFIG_ARCH_LPC32XX) += lpc <<
196 machine-$(CONFIG_ARCH_MESON) += mes <<
197 machine-$(CONFIG_ARCH_MMP) += mmp <<
198 machine-$(CONFIG_ARCH_MV78XX0) += mv7 <<
199 machine-$(CONFIG_ARCH_MVEBU) += mve <<
200 machine-$(CONFIG_ARCH_MXC) += imx <<
201 machine-$(CONFIG_ARCH_MEDIATEK) += med <<
202 machine-$(CONFIG_ARCH_MILBEAUT) += mil <<
203 machine-$(CONFIG_ARCH_MXS) += mxs <<
204 machine-$(CONFIG_ARCH_MSTARV7) += mst <<
205 machine-$(CONFIG_ARCH_NOMADIK) += nom <<
206 machine-$(CONFIG_ARCH_NPCM) += npc <<
207 machine-$(CONFIG_ARCH_OMAP1) += oma <<
208 machine-$(CONFIG_ARCH_OMAP2PLUS) += oma <<
209 machine-$(CONFIG_ARCH_ORION5X) += ori <<
210 machine-$(CONFIG_ARCH_PXA) += pxa <<
211 machine-$(CONFIG_ARCH_QCOM) += qco <<
212 machine-$(CONFIG_ARCH_REALTEK) += rea <<
213 machine-$(CONFIG_ARCH_ROCKCHIP) += roc <<
214 machine-$(CONFIG_ARCH_RPC) += rpc <<
215 machine-$(CONFIG_PLAT_SAMSUNG) += s3c <<
216 machine-$(CONFIG_ARCH_S5PV210) += s5p <<
217 machine-$(CONFIG_ARCH_SA1100) += sa1 <<
218 machine-$(CONFIG_ARCH_RENESAS) += shm <<
219 machine-$(CONFIG_ARCH_INTEL_SOCFPGA) += soc <<
220 machine-$(CONFIG_ARCH_STI) += sti <<
221 machine-$(CONFIG_ARCH_STM32) += stm <<
222 machine-$(CONFIG_ARCH_SUNXI) += sun <<
223 machine-$(CONFIG_ARCH_TEGRA) += teg <<
224 machine-$(CONFIG_ARCH_U8500) += ux5 <<
225 machine-$(CONFIG_ARCH_VT8500) += vt8 <<
226 machine-$(CONFIG_ARCH_ZYNQ) += zyn <<
227 machine-$(CONFIG_PLAT_VERSATILE) += ver <<
228 machine-$(CONFIG_PLAT_SPEAR) += spe <<
229 <<
230 # legacy platforms provide their own mach/*.h <<
231 # these three are mutually exclusive <<
232 machdirs-$(CONFIG_ARCH_FOOTBRIDGE) += arc <<
233 machdirs-$(CONFIG_ARCH_RPC) += arc <<
234 machdirs-$(CONFIG_ARCH_SA1100) += arc <<
235 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/% <<
236 <<
237 # The byte offset of the kernel image in RAM f <<
238 TEXT_OFFSET := $(textofs-y) <<
239 <<
240 export TEXT_OFFSET GZFLAGS MMUEXT <<
241 <<
242 # If we have a machine-specific directory, the <<
243 core-y += $(patsubst <<
244 # For cleaning <<
245 core- += $(patsubst <<
246 <<
247 core-$(CONFIG_PLAT_ORION) += arch/arm/pl <<
248 <<
249 libs-y := arch/arm/li <<
250 <<
251 # Default target when executing plain make <<
252 boot := arch/arm/boot <<
253 ifeq ($(CONFIG_XIP_KERNEL),y) <<
254 KBUILD_IMAGE := $(boot)/xipImage <<
255 else <<
256 KBUILD_IMAGE := $(boot)/zImage <<
257 endif <<
258 55
259 ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) !! 56 # All the instructions talk about "make bzImage".
260 prepare: stack_protector_prepare !! 57 bzImage: zImage
261 ifeq ($(CONFIG_CC_HAVE_STACKPROTECTOR_TLS),y) <<
262 stack_protector_prepare: prepare0 <<
263 $(eval KBUILD_CFLAGS += \ <<
264 -mstack-protector-guard=tls \ <<
265 -mstack-protector-guard-offset <<
266 awk '{if ($$2 == "TSK_ <<
267 include/genera <<
268 else <<
269 stack_protector_prepare: prepare0 <<
270 $(eval SSP_PLUGIN_CFLAGS := \ <<
271 -fplugin-arg-arm_ssp_per_task_ <<
272 awk '{if ($$2 == "TSK_ <<
273 include/genera <<
274 $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_C <<
275 $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLU <<
276 endif <<
277 endif <<
278 58
279 all: $(notdir $(KBUILD_IMAGE)) !! 59 boot := arch/$(ARCH)/boot
280 60
>> 61 $(BOOT_TARGETS): vmlinux
>> 62 $(Q)$(MAKE) $(build)=$(boot) $@
281 63
282 archheaders: !! 64 uImage: vmlinux
283 $(Q)$(MAKE) $(build)=arch/arm/tools ua !! 65 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
284 66
285 archprepare: !! 67 define archhelp
286 $(Q)$(MAKE) $(build)=arch/arm/tools ka !! 68 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
>> 69 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
>> 70 @echo ' install - Install kernel using'
>> 71 @echo ' (your) ~/bin/installkernel or'
>> 72 @echo ' (distribution) /sbin/installkernel or'
>> 73 @echo ' install to $$(INSTALL_PATH) and run lilo'
>> 74 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
>> 75 endef
287 76
288 # Convert bzImage to zImage !! 77 archclean:
289 bzImage: zImage !! 78 $(Q)$(MAKE) $(clean)=arch/ppc/boot
290 79
291 BOOT_TARGETS = zImage Image xipImage bootpI !! 80 prepare: include/asm-$(ARCH)/offsets.h checkbin
292 INSTALL_TARGETS = zinstall uinstall install <<
293 81
294 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TAR !! 82 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
>> 83 include/config/MARKER
295 84
296 bootpImage uImage: zImage !! 85 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
297 zImage: Image !! 86 $(call filechk,gen-asm-offsets)
298 87
299 $(BOOT_TARGETS): vmlinux !! 88 ifdef CONFIG_6xx
300 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 89 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
301 @$(kecho) ' Kernel: $(boot)/$@ is rea !! 90 NEW_AS := $(shell echo dssall | $(AS) -o /dev/null >/dev/null 2>&1 ; echo $$?)
>> 91 GOODVER := 2.12.1
>> 92 else
>> 93 NEW_AS := 0
>> 94 endif
302 95
303 $(INSTALL_TARGETS): KBUILD_IMAGE = $(boot)/$(p !! 96 ifneq ($(NEW_AS),0)
304 $(INSTALL_TARGETS): !! 97 checkbin:
305 $(call cmd,install) !! 98 @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build'
306 !! 99 @echo 'correctly with old versions of binutils.'
307 vdso-install-$(CONFIG_VDSO) += arch/arm/vdso/v !! 100 @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
308 !! 101 @false
309 # My testing targets (bypasses dependencies) !! 102 else
310 bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/b !! 103 checkbin:
311 !! 104 @true
312 include $(srctree)/scripts/Makefile.defconf !! 105 endif
313 PHONY += multi_v7_lpae_defconfig <<
314 multi_v7_lpae_defconfig: <<
315 $(call merge_into_defconfig,multi_v7_d <<
316 106
317 define archhelp !! 107 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
318 echo '* zImage - Compressed kernel i !! 108 arch/$(ARCH)/kernel/asm-offsets.s
319 echo ' Image - Uncompressed kernel <<
320 echo '* xipImage - XIP kernel image, i <<
321 echo ' uImage - U-Boot wrapped zIma <<
322 echo ' bootpImage - Combined zImage and <<
323 echo ' (supply initrd imag <<
324 echo ' install - Install uncompresse <<
325 echo ' zinstall - Install compressed <<
326 echo ' uinstall - Install U-Boot wrap <<
327 echo ' Install using (your <<
328 echo ' (distribution) /sbi <<
329 echo ' install to $$(INSTA <<
330 echo <<
331 echo ' multi_v7_lpae_defconfig - multi <<
332 endef <<
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