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14cf11af PM |
1 | # This file is included by the global makefile so that you can add your own |
2 | # architecture-specific flags and dependencies. Remember to do have actions | |
3 | # for "archclean" and "archdep" for cleaning up and making dependencies for | |
4 | # this architecture. | |
5 | # | |
6 | # This file is subject to the terms and conditions of the GNU General Public | |
7 | # License. See the file "COPYING" in the main directory of this archive | |
8 | # for more details. | |
9 | # | |
10 | # Copyright (C) 1994 by Linus Torvalds | |
11 | # Changes for PPC by Gary Thomas | |
12 | # Rewritten by Cort Dougan and Paul Mackerras | |
13 | # | |
14 | ||
14cf11af PM |
15 | HAS_BIARCH := $(call cc-option-yn, -m32) |
16 | ||
14cf11af PM |
17 | # Set default 32 bits cross compilers for vdso and boot wrapper |
18 | CROSS32_COMPILE ?= | |
19 | ||
20 | CROSS32CC := $(CROSS32_COMPILE)gcc | |
2bf11819 | 21 | CROSS32AR := $(CROSS32_COMPILE)ar |
14cf11af PM |
22 | |
23 | ifeq ($(HAS_BIARCH),y) | |
24 | ifeq ($(CROSS32_COMPILE),) | |
25 | CROSS32CC := $(CC) -m32 | |
8995ac87 | 26 | CROSS32AR := GNUTARGET=elf32-powerpc $(AR) |
14cf11af PM |
27 | endif |
28 | endif | |
29 | ||
1976aef9 | 30 | export CROSS32CC CROSS32AR |
14cf11af | 31 | |
ca786f83 | 32 | ifeq ($(CROSS_COMPILE),) |
8a5abdf8 | 33 | KBUILD_DEFCONFIG := $(shell uname -m)_defconfig |
ca786f83 AB |
34 | else |
35 | KBUILD_DEFCONFIG := ppc64_defconfig | |
36 | endif | |
8a5abdf8 | 37 | |
94b212c2 | 38 | ifeq ($(CONFIG_PPC64),y) |
14cf11af PM |
39 | new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) |
40 | ||
41 | ifeq ($(new_nm),y) | |
42 | NM := $(NM) --synthetic | |
43 | endif | |
a0588015 | 44 | endif |
14cf11af | 45 | |
a0588015 AB |
46 | ifeq ($(CONFIG_PPC64),y) |
47 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) | |
48 | OLDARCH := ppc64le | |
49 | else | |
50 | OLDARCH := ppc64 | |
51 | endif | |
52 | else | |
53 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) | |
54 | OLDARCH := ppcle | |
14cf11af | 55 | else |
bbeb3f4c | 56 | OLDARCH := ppc |
2578bfae | 57 | endif |
a0588015 | 58 | endif |
2578bfae SR |
59 | |
60 | # It seems there are times we use this Makefile without | |
61 | # including the config file, but this replicates the old behaviour | |
62 | ifeq ($(CONFIG_WORD_SIZE),) | |
63 | CONFIG_WORD_SIZE := 32 | |
14cf11af PM |
64 | endif |
65 | ||
190554db SR |
66 | UTS_MACHINE := $(OLDARCH) |
67 | ||
d72b0801 | 68 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
d72b0801 | 69 | override LD += -EL |
d72b0801 IM |
70 | LDEMULATION := lppc |
71 | GNUTARGET := powerpcle | |
72 | MULTIPLEWORD := -mno-multiple | |
d3d35d95 | 73 | KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect) |
d72b0801 | 74 | else |
d72b0801 IM |
75 | override LD += -EB |
76 | LDEMULATION := ppc | |
77 | GNUTARGET := powerpc | |
78 | MULTIPLEWORD := -mmultiple | |
79 | endif | |
80 | ||
164af597 ME |
81 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) |
82 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian | |
83 | ifneq ($(cc-name),clang) | |
84 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align | |
85 | endif | |
86 | ||
87 | aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) | |
88 | aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian | |
89 | ||
14cf11af | 90 | ifeq ($(HAS_BIARCH),y) |
2578bfae | 91 | override AS += -a$(CONFIG_WORD_SIZE) |
d72b0801 | 92 | override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION) |
2578bfae | 93 | override CC += -m$(CONFIG_WORD_SIZE) |
d72b0801 | 94 | override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR) |
14cf11af PM |
95 | endif |
96 | ||
9c5f7d39 SP |
97 | LDFLAGS_vmlinux-y := -Bstatic |
98 | LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie | |
99 | LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) | |
14cf11af | 100 | |
1fbe9cf2 AB |
101 | ifeq ($(CONFIG_PPC64),y) |
102 | ifeq ($(call cc-option-yn,-mcmodel=medium),y) | |
103 | # -mcmodel=medium breaks modules because it uses 32bit offsets from | |
104 | # the TOC pointer to create pointers where possible. Pointers into the | |
105 | # percpu data area are created by this method. | |
106 | # | |
107 | # The kernel module loader relocates the percpu data section from the | |
108 | # original location (starting with 0xd...) to somewhere in the base | |
109 | # kernel percpu data space (starting with 0xc...). We need a full | |
110 | # 64bit relocation for this to work, hence -mcmodel=large. | |
111 | KBUILD_CFLAGS_MODULE += -mcmodel=large | |
112 | else | |
113 | export NO_MINIMAL_TOC := -mno-minimal-toc | |
114 | endif | |
115 | endif | |
116 | ||
a50a862e | 117 | CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) |
721aeaa9 | 118 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
238abecd | 119 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc)) |
721aeaa9 AB |
120 | AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) |
121 | else | |
238abecd | 122 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc) |
721aeaa9 | 123 | endif |
238abecd | 124 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc)) |
98679fb0 | 125 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) |
d72b0801 | 126 | CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) |
d23c6fb4 | 127 | |
01718ba6 | 128 | ifeq ($(CONFIG_PPC_BOOK3S_64),y) |
d23c6fb4 | 129 | CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) |
01718ba6 SW |
130 | else |
131 | CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 | |
132 | endif | |
133 | ||
8c50b72a TD |
134 | ifdef CONFIG_MPROFILE_KERNEL |
135 | ifeq ($(shell $(srctree)/arch/powerpc/scripts/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__),OK) | |
136 | CC_FLAGS_FTRACE := -pg -mprofile-kernel | |
137 | KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL | |
138 | else | |
139 | # If the user asked for mprofile-kernel but the toolchain doesn't | |
140 | # support it, emit a warning and deliberately break the build later | |
141 | # with mprofile-kernel-not-supported. We would prefer to make this an | |
142 | # error right here, but then the user would never be able to run | |
143 | # oldconfig to change their configuration. | |
144 | $(warning Compiler does not support mprofile-kernel, set CONFIG_DISABLE_MPROFILE_KERNEL) | |
145 | CC_FLAGS_FTRACE := -mprofile-kernel-not-supported | |
146 | endif | |
147 | endif | |
148 | ||
d23c6fb4 AB |
149 | CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) |
150 | CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) | |
151 | CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) | |
152 | CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) | |
153 | CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) | |
ff2e466a | 154 | CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8) |
d23c6fb4 | 155 | |
cbf8a358 TC |
156 | # Altivec option not allowed with e500mc64 in GCC. |
157 | ifeq ($(CONFIG_ALTIVEC),y) | |
158 | E5500_CPU := -mcpu=powerpc64 | |
159 | else | |
01718ba6 | 160 | E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) |
cbf8a358 | 161 | endif |
01718ba6 SW |
162 | CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) |
163 | CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) | |
164 | ||
847f56b0 SW |
165 | ifeq ($(CONFIG_PPC32),y) |
166 | ifeq ($(CONFIG_PPC_E500MC),y) | |
167 | CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) | |
168 | else | |
169 | CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) | |
170 | endif | |
171 | endif | |
172 | ||
7998eb3d GR |
173 | asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) |
174 | ||
175 | KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr) | |
58aedccb | 176 | KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y) |
a50a862e AB |
177 | KBUILD_CFLAGS += $(call cc-option,-msoft-float) |
178 | KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y) | |
a0f97e06 | 179 | CPP = $(CC) -E $(KBUILD_CFLAGS) |
14cf11af | 180 | |
2578bfae | 181 | CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ |
62c2c5cf DA |
182 | ifdef CONFIG_CPU_BIG_ENDIAN |
183 | CHECKFLAGS += -D__BIG_ENDIAN__ | |
184 | else | |
185 | CHECKFLAGS += -D__LITTLE_ENDIAN__ | |
186 | endif | |
14cf11af | 187 | |
772320e8 | 188 | KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
7fca5dc8 | 189 | |
d5b35cff AP |
190 | ifeq ($(CONFIG_476FPE_ERR46),y) |
191 | KBUILD_LDFLAGS_MODULE += --ppc476-workaround \ | |
192 | -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds | |
193 | endif | |
194 | ||
d23c6fb4 | 195 | # No AltiVec or VSX instructions when building kernel |
a0f97e06 | 196 | KBUILD_CFLAGS += $(call cc-option,-mno-altivec) |
d23c6fb4 | 197 | KBUILD_CFLAGS += $(call cc-option,-mno-vsx) |
d3f67fbb | 198 | |
0197cd2e | 199 | # No SPE instruction when building kernel |
ce400c01 | 200 | # (We use all available options to help semi-broken compilers) |
0197cd2e | 201 | KBUILD_CFLAGS += $(call cc-option,-mno-spe) |
ce400c01 | 202 | KBUILD_CFLAGS += $(call cc-option,-mspe=no) |
0197cd2e | 203 | |
14cf11af PM |
204 | # Enable unit-at-a-time mode when possible. It shrinks the |
205 | # kernel considerably. | |
a0f97e06 | 206 | KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) |
14cf11af | 207 | |
d0679c73 AK |
208 | # FIXME: the module load should be taught about the additional relocs |
209 | # generated by this. | |
210 | # revert to pre-gcc-4.4 behaviour of .eh_frame | |
211 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | |
212 | ||
57647a4d BH |
213 | # Never use string load/store instructions as they are |
214 | # often slow when they are implemented at all | |
a50a862e | 215 | KBUILD_CFLAGS += $(call cc-option,-mno-string) |
14cf11af | 216 | |
f48b8296 | 217 | ifeq ($(CONFIG_6xx),y) |
a0f97e06 | 218 | KBUILD_CFLAGS += -mcpu=powerpc |
f48b8296 OH |
219 | endif |
220 | ||
7563dc64 | 221 | # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
606576ce | 222 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
7563dc64 TB |
223 | KBUILD_CFLAGS += -mno-sched-epilog |
224 | endif | |
225 | ||
14cf11af | 226 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
9ddf0075 | 227 | cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec) |
14cf11af PM |
228 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
229 | ||
222d394d | 230 | KBUILD_AFLAGS += $(cpu-as-y) |
a0f97e06 | 231 | KBUILD_CFLAGS += $(cpu-as-y) |
14cf11af | 232 | |
164af597 ME |
233 | KBUILD_AFLAGS += $(aflags-y) |
234 | KBUILD_CFLAGS += $(cflags-y) | |
235 | ||
2578bfae | 236 | head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o |
14cf11af | 237 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
15f6527e | 238 | head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o |
14cf11af PM |
239 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
240 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o | |
241 | ||
9994a338 | 242 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
14cf11af | 243 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
e821ea70 | 244 | head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
5ac47f7a | 245 | head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o |
14cf11af | 246 | |
daec962e | 247 | core-y += arch/powerpc/kernel/ \ |
daec962e PM |
248 | arch/powerpc/mm/ \ |
249 | arch/powerpc/lib/ \ | |
250 | arch/powerpc/sysdev/ \ | |
1a3d1fc2 | 251 | arch/powerpc/platforms/ \ |
0ca87f05 | 252 | arch/powerpc/math-emu/ \ |
323a6bf1 | 253 | arch/powerpc/crypto/ \ |
0ca87f05 | 254 | arch/powerpc/net/ |
f78541dc | 255 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
bbf45ba5 | 256 | core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
f2699491 | 257 | core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ |
14cf11af PM |
258 | |
259 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ | |
260 | ||
135f0b17 | 261 | # Default to zImage, override when needed |
25431333 | 262 | all: zImage |
14cf11af | 263 | |
e32e78c5 | 264 | # With make 3.82 we cannot mix normal and wildcard targets |
c686ecf5 | 265 | BOOT_TARGETS1 := zImage zImage.initrd uImage |
11eab297 | 266 | BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.% |
cabb5587 | 267 | |
e32e78c5 | 268 | PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) |
cabb5587 | 269 | |
94b212c2 | 270 | boot := arch/$(ARCH)/boot |
14cf11af | 271 | |
144ef909 TB |
272 | ifeq ($(CONFIG_RELOCATABLE),y) |
273 | quiet_cmd_relocs_check = CALL $< | |
a71aa05e | 274 | cmd_relocs_check = $(CONFIG_SHELL) $< "$(OBJDUMP)" "$(obj)/vmlinux" |
144ef909 TB |
275 | |
276 | PHONY += relocs_check | |
a71aa05e | 277 | relocs_check: arch/powerpc/relocs_check.sh vmlinux |
144ef909 TB |
278 | $(call cmd,relocs_check) |
279 | ||
280 | zImage: relocs_check | |
281 | endif | |
282 | ||
e32e78c5 SR |
283 | $(BOOT_TARGETS1): vmlinux |
284 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
285 | $(BOOT_TARGETS2): vmlinux | |
286 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
287 | ||
288 | ||
289 | bootwrapper_install: | |
20f62954 | 290 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
773f76b1 | 291 | |
8662d0bc | 292 | %.dtb: scripts |
773f76b1 | 293 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
14cf11af | 294 | |
ea4d1a87 CB |
295 | # Used to create 'merged defconfigs' |
296 | # To use it $(call) it with the first argument as the base defconfig | |
297 | # and the second argument as a space separated list of .config files to merge, | |
298 | # without the .config suffix. | |
299 | define merge_into_defconfig | |
300 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ | |
301 | -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \ | |
302 | $(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config) | |
303 | +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig | |
304 | endef | |
305 | ||
306 | PHONY += pseries_le_defconfig | |
307 | pseries_le_defconfig: | |
308 | $(call merge_into_defconfig,pseries_defconfig,le) | |
309 | ||
2adc48a6 ME |
310 | PHONY += ppc64le_defconfig |
311 | ppc64le_defconfig: | |
312 | $(call merge_into_defconfig,ppc64_defconfig,le) | |
313 | ||
44d54014 SW |
314 | PHONY += mpc85xx_defconfig |
315 | mpc85xx_defconfig: | |
316 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
317 | 85xx-32bit 85xx-hw fsl-emb-nonhw) | |
318 | ||
319 | PHONY += mpc85xx_smp_defconfig | |
320 | mpc85xx_smp_defconfig: | |
321 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
322 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw) | |
323 | ||
324 | PHONY += corenet32_smp_defconfig | |
325 | corenet32_smp_defconfig: | |
326 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
327 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw) | |
328 | ||
329 | PHONY += corenet64_smp_defconfig | |
330 | corenet64_smp_defconfig: | |
331 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
332 | 85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw) | |
333 | ||
43de32c5 AIB |
334 | PHONY += mpc86xx_defconfig |
335 | mpc86xx_defconfig: | |
336 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
337 | 86xx-hw fsl-emb-nonhw) | |
338 | ||
339 | PHONY += mpc86xx_smp_defconfig | |
340 | mpc86xx_smp_defconfig: | |
341 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
342 | 86xx-smp 86xx-hw fsl-emb-nonhw) | |
343 | ||
14cf11af | 344 | define archhelp |
70bf0333 GL |
345 | @echo '* zImage - Build default images selected by kernel config' |
346 | @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' | |
347 | @echo ' uImage - U-Boot native image format' | |
348 | @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' | |
349 | @echo ' versions which do not support device trees' | |
350 | @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' | |
351 | @echo ' simpleImage.<dt> - Firmware independent image.' | |
352 | @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' | |
14cf11af | 353 | @echo ' install - Install kernel using' |
caa27b66 SR |
354 | @echo ' (your) ~/bin/$(INSTALLKERNEL) or' |
355 | @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' | |
14cf11af | 356 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
437a58db | 357 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
70bf0333 GL |
358 | @echo '' |
359 | @echo ' Targets with <dt> embed a device tree blob inside the image' | |
360 | @echo ' These targets support board with firmware that does not' | |
361 | @echo ' support passing a device tree directly. Replace <dt> with the' | |
362 | @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' | |
363 | @echo ' (minus the .dts extension).' | |
14cf11af PM |
364 | endef |
365 | ||
3f85d63e | 366 | install: |
25431333 | 367 | $(Q)$(MAKE) $(build)=$(boot) install |
928370c6 | 368 | |
8150caad RM |
369 | vdso_install: |
370 | ifeq ($(CONFIG_PPC64),y) | |
371 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ | |
372 | endif | |
373 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ | |
374 | ||
14cf11af | 375 | archclean: |
a3a9e99e | 376 | $(Q)$(MAKE) $(clean)=$(boot) |
70567293 | 377 | |
14cf11af PM |
378 | archprepare: checkbin |
379 | ||
14cf11af PM |
380 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
381 | # to stdout and these checks are run even on install targets. | |
382 | TOUT := .tmp_gas_check | |
14cf11af | 383 | |
82a85084 AB |
384 | # Check gcc and binutils versions: |
385 | # - gcc-3.4 and binutils-2.14 are a fatal combination | |
386 | # - Require gcc 4.0 or above on 64-bit | |
387 | # - gcc-4.2.0 has issues compiling modules on 64-bit | |
14cf11af | 388 | checkbin: |
5631d9c4 | 389 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 390 | && test "$(cc-version)" = "0304" ; then \ |
14cf11af PM |
391 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
392 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ | |
393 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ | |
394 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ | |
395 | false; \ | |
396 | fi ; \ | |
397 | fi | |
5631d9c4 | 398 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 399 | && test "$(cc-version)" -lt "0400" \ |
82a85084 AB |
400 | && test "x${CONFIG_PPC64}" = "xy" ; then \ |
401 | echo -n "Sorry, GCC v4.0 or above is required to build " ; \ | |
402 | echo "the 64-bit powerpc kernel." ; \ | |
403 | false ; \ | |
404 | fi | |
5631d9c4 | 405 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 406 | && test "$(cc-fullversion)" = "040200" \ |
f5e83fa4 SB |
407 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
408 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ | |
409 | echo 'kernel with modules enabled.' ; \ | |
410 | echo -n '*** Please use a different GCC version or ' ; \ | |
411 | echo 'disable kernel modules' ; \ | |
412 | false ; \ | |
413 | fi | |
60e065f7 ME |
414 | @if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \ |
415 | && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \ | |
416 | echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \ | |
417 | echo 'in some circumstances.' ; \ | |
418 | echo -n '*** Please use a different binutils version.' ; \ | |
419 | false ; \ | |
420 | fi | |
421 | ||
14cf11af PM |
422 | |
423 | CLEAN_FILES += $(TOUT) | |
424 |