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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 := $(CC) -m32 | |
43c9127d | 26 | KBUILD_ARFLAGS += --target=elf32-powerpc |
14cf11af PM |
27 | endif |
28 | endif | |
29 | ||
1976aef9 | 30 | export CROSS32CC CROSS32AR |
14cf11af | 31 | |
ca786f83 | 32 | ifeq ($(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 := $(NM) --synthetic | |
43 | endif | |
a0588015 | 44 | endif |
14cf11af | 45 | |
68201fbb ME |
46 | # BITS is used as extension for files which are available in a 32 bit |
47 | # and a 64 bit version to simplify shared Makefiles. | |
48 | # e.g.: obj-y += foo_$(BITS).o | |
49 | export BITS | |
50 | ||
51 | ifdef CONFIG_PPC64 | |
52 | BITS := 64 | |
53 | else | |
54 | BITS := 32 | |
14cf11af PM |
55 | endif |
56 | ||
57073e27 ME |
57 | machine-y = ppc |
58 | machine-$(CONFIG_PPC64) += 64 | |
59 | machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le | |
60 | UTS_MACHINE := $(subst $(space),,$(machine-y)) | |
190554db | 61 | |
d72b0801 | 62 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
d72b0801 | 63 | override LD += -EL |
d72b0801 IM |
64 | LDEMULATION := lppc |
65 | GNUTARGET := powerpcle | |
66 | MULTIPLEWORD := -mno-multiple | |
d3d35d95 | 67 | KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect) |
d72b0801 | 68 | else |
d72b0801 IM |
69 | override LD += -EB |
70 | LDEMULATION := ppc | |
71 | GNUTARGET := powerpc | |
72 | MULTIPLEWORD := -mmultiple | |
73 | endif | |
74 | ||
164af597 ME |
75 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) |
76 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian | |
77 | ifneq ($(cc-name),clang) | |
78 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align | |
79 | endif | |
80 | ||
81 | aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian) | |
82 | aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian | |
83 | ||
14cf11af | 84 | ifeq ($(HAS_BIARCH),y) |
68201fbb ME |
85 | override AS += -a$(BITS) |
86 | override LD += -m elf$(BITS)$(LDEMULATION) | |
87 | override CC += -m$(BITS) | |
43c9127d | 88 | KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET) |
14cf11af PM |
89 | endif |
90 | ||
9c5f7d39 SP |
91 | LDFLAGS_vmlinux-y := -Bstatic |
92 | LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie | |
93 | LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) | |
14cf11af | 94 | |
1fbe9cf2 AB |
95 | ifeq ($(CONFIG_PPC64),y) |
96 | ifeq ($(call cc-option-yn,-mcmodel=medium),y) | |
97 | # -mcmodel=medium breaks modules because it uses 32bit offsets from | |
98 | # the TOC pointer to create pointers where possible. Pointers into the | |
99 | # percpu data area are created by this method. | |
100 | # | |
101 | # The kernel module loader relocates the percpu data section from the | |
102 | # original location (starting with 0xd...) to somewhere in the base | |
103 | # kernel percpu data space (starting with 0xc...). We need a full | |
104 | # 64bit relocation for this to work, hence -mcmodel=large. | |
105 | KBUILD_CFLAGS_MODULE += -mcmodel=large | |
106 | else | |
107 | export NO_MINIMAL_TOC := -mno-minimal-toc | |
108 | endif | |
109 | endif | |
110 | ||
a50a862e | 111 | CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) |
721aeaa9 | 112 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
238abecd | 113 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc)) |
721aeaa9 AB |
114 | AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) |
115 | else | |
238abecd | 116 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc) |
721aeaa9 | 117 | endif |
238abecd | 118 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc)) |
98679fb0 | 119 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) |
d72b0801 | 120 | CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) |
d23c6fb4 | 121 | |
01718ba6 | 122 | ifeq ($(CONFIG_PPC_BOOK3S_64),y) |
d23c6fb4 | 123 | CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) |
3a849815 | 124 | CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power4 |
01718ba6 SW |
125 | else |
126 | CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 | |
127 | endif | |
128 | ||
8c50b72a TD |
129 | ifdef CONFIG_MPROFILE_KERNEL |
130 | ifeq ($(shell $(srctree)/arch/powerpc/scripts/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__),OK) | |
131 | CC_FLAGS_FTRACE := -pg -mprofile-kernel | |
132 | KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL | |
133 | else | |
134 | # If the user asked for mprofile-kernel but the toolchain doesn't | |
135 | # support it, emit a warning and deliberately break the build later | |
136 | # with mprofile-kernel-not-supported. We would prefer to make this an | |
137 | # error right here, but then the user would never be able to run | |
138 | # oldconfig to change their configuration. | |
139 | $(warning Compiler does not support mprofile-kernel, set CONFIG_DISABLE_MPROFILE_KERNEL) | |
140 | CC_FLAGS_FTRACE := -mprofile-kernel-not-supported | |
141 | endif | |
142 | endif | |
143 | ||
d23c6fb4 AB |
144 | CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) |
145 | CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) | |
146 | CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) | |
147 | CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) | |
148 | CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) | |
ff2e466a | 149 | CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8) |
d23c6fb4 | 150 | |
cbf8a358 TC |
151 | # Altivec option not allowed with e500mc64 in GCC. |
152 | ifeq ($(CONFIG_ALTIVEC),y) | |
153 | E5500_CPU := -mcpu=powerpc64 | |
154 | else | |
01718ba6 | 155 | E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) |
cbf8a358 | 156 | endif |
01718ba6 SW |
157 | CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) |
158 | CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) | |
159 | ||
847f56b0 SW |
160 | ifeq ($(CONFIG_PPC32),y) |
161 | ifeq ($(CONFIG_PPC_E500MC),y) | |
162 | CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) | |
163 | else | |
164 | CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) | |
165 | endif | |
166 | endif | |
167 | ||
7998eb3d GR |
168 | asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) |
169 | ||
170 | KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr) | |
58aedccb | 171 | KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y) |
a50a862e AB |
172 | KBUILD_CFLAGS += $(call cc-option,-msoft-float) |
173 | KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y) | |
a0f97e06 | 174 | CPP = $(CC) -E $(KBUILD_CFLAGS) |
14cf11af | 175 | |
68201fbb | 176 | CHECKFLAGS += -m$(BITS) -D__powerpc__ -D__powerpc$(BITS)__ |
62c2c5cf DA |
177 | ifdef CONFIG_CPU_BIG_ENDIAN |
178 | CHECKFLAGS += -D__BIG_ENDIAN__ | |
179 | else | |
180 | CHECKFLAGS += -D__LITTLE_ENDIAN__ | |
181 | endif | |
14cf11af | 182 | |
772320e8 | 183 | KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
7fca5dc8 | 184 | |
d5b35cff AP |
185 | ifeq ($(CONFIG_476FPE_ERR46),y) |
186 | KBUILD_LDFLAGS_MODULE += --ppc476-workaround \ | |
187 | -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds | |
188 | endif | |
189 | ||
d23c6fb4 | 190 | # No AltiVec or VSX instructions when building kernel |
a0f97e06 | 191 | KBUILD_CFLAGS += $(call cc-option,-mno-altivec) |
d23c6fb4 | 192 | KBUILD_CFLAGS += $(call cc-option,-mno-vsx) |
d3f67fbb | 193 | |
0197cd2e | 194 | # No SPE instruction when building kernel |
ce400c01 | 195 | # (We use all available options to help semi-broken compilers) |
0197cd2e | 196 | KBUILD_CFLAGS += $(call cc-option,-mno-spe) |
ce400c01 | 197 | KBUILD_CFLAGS += $(call cc-option,-mspe=no) |
0197cd2e | 198 | |
14cf11af PM |
199 | # Enable unit-at-a-time mode when possible. It shrinks the |
200 | # kernel considerably. | |
a0f97e06 | 201 | KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) |
14cf11af | 202 | |
d0679c73 AK |
203 | # FIXME: the module load should be taught about the additional relocs |
204 | # generated by this. | |
205 | # revert to pre-gcc-4.4 behaviour of .eh_frame | |
206 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | |
207 | ||
57647a4d BH |
208 | # Never use string load/store instructions as they are |
209 | # often slow when they are implemented at all | |
a50a862e | 210 | KBUILD_CFLAGS += $(call cc-option,-mno-string) |
14cf11af | 211 | |
f48b8296 | 212 | ifeq ($(CONFIG_6xx),y) |
a0f97e06 | 213 | KBUILD_CFLAGS += -mcpu=powerpc |
f48b8296 OH |
214 | endif |
215 | ||
7563dc64 | 216 | # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
606576ce | 217 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
7563dc64 TB |
218 | KBUILD_CFLAGS += -mno-sched-epilog |
219 | endif | |
220 | ||
14cf11af | 221 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
9ddf0075 | 222 | cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec) |
14cf11af PM |
223 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
224 | ||
222d394d | 225 | KBUILD_AFLAGS += $(cpu-as-y) |
a0f97e06 | 226 | KBUILD_CFLAGS += $(cpu-as-y) |
14cf11af | 227 | |
164af597 ME |
228 | KBUILD_AFLAGS += $(aflags-y) |
229 | KBUILD_CFLAGS += $(cflags-y) | |
230 | ||
68201fbb | 231 | head-y := arch/powerpc/kernel/head_$(BITS).o |
14cf11af | 232 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
15f6527e | 233 | head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o |
14cf11af PM |
234 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
235 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o | |
236 | ||
9994a338 | 237 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
14cf11af | 238 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
e821ea70 | 239 | head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
5ac47f7a | 240 | head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o |
14cf11af | 241 | |
daec962e | 242 | core-y += arch/powerpc/kernel/ \ |
daec962e PM |
243 | arch/powerpc/mm/ \ |
244 | arch/powerpc/lib/ \ | |
245 | arch/powerpc/sysdev/ \ | |
1a3d1fc2 | 246 | arch/powerpc/platforms/ \ |
0ca87f05 | 247 | arch/powerpc/math-emu/ \ |
323a6bf1 | 248 | arch/powerpc/crypto/ \ |
0ca87f05 | 249 | arch/powerpc/net/ |
f78541dc | 250 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
bbf45ba5 | 251 | core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
f2699491 | 252 | core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ |
14cf11af PM |
253 | |
254 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ | |
255 | ||
135f0b17 | 256 | # Default to zImage, override when needed |
25431333 | 257 | all: zImage |
14cf11af | 258 | |
e32e78c5 | 259 | # With make 3.82 we cannot mix normal and wildcard targets |
c686ecf5 | 260 | BOOT_TARGETS1 := zImage zImage.initrd uImage |
11eab297 | 261 | BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.% |
cabb5587 | 262 | |
e32e78c5 | 263 | PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) |
cabb5587 | 264 | |
94b212c2 | 265 | boot := arch/$(ARCH)/boot |
14cf11af | 266 | |
144ef909 TB |
267 | ifeq ($(CONFIG_RELOCATABLE),y) |
268 | quiet_cmd_relocs_check = CALL $< | |
a71aa05e | 269 | cmd_relocs_check = $(CONFIG_SHELL) $< "$(OBJDUMP)" "$(obj)/vmlinux" |
144ef909 TB |
270 | |
271 | PHONY += relocs_check | |
a71aa05e | 272 | relocs_check: arch/powerpc/relocs_check.sh vmlinux |
144ef909 TB |
273 | $(call cmd,relocs_check) |
274 | ||
275 | zImage: relocs_check | |
276 | endif | |
277 | ||
e32e78c5 SR |
278 | $(BOOT_TARGETS1): vmlinux |
279 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
280 | $(BOOT_TARGETS2): vmlinux | |
281 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
282 | ||
283 | ||
284 | bootwrapper_install: | |
20f62954 | 285 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
773f76b1 | 286 | |
8662d0bc | 287 | %.dtb: scripts |
773f76b1 | 288 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
14cf11af | 289 | |
ea4d1a87 CB |
290 | # Used to create 'merged defconfigs' |
291 | # To use it $(call) it with the first argument as the base defconfig | |
292 | # and the second argument as a space separated list of .config files to merge, | |
293 | # without the .config suffix. | |
294 | define merge_into_defconfig | |
295 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ | |
296 | -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \ | |
297 | $(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config) | |
298 | +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig | |
299 | endef | |
300 | ||
301 | PHONY += pseries_le_defconfig | |
302 | pseries_le_defconfig: | |
303 | $(call merge_into_defconfig,pseries_defconfig,le) | |
304 | ||
2adc48a6 ME |
305 | PHONY += ppc64le_defconfig |
306 | ppc64le_defconfig: | |
307 | $(call merge_into_defconfig,ppc64_defconfig,le) | |
308 | ||
44d54014 SW |
309 | PHONY += mpc85xx_defconfig |
310 | mpc85xx_defconfig: | |
311 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
312 | 85xx-32bit 85xx-hw fsl-emb-nonhw) | |
313 | ||
314 | PHONY += mpc85xx_smp_defconfig | |
315 | mpc85xx_smp_defconfig: | |
316 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
317 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw) | |
318 | ||
319 | PHONY += corenet32_smp_defconfig | |
320 | corenet32_smp_defconfig: | |
321 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
e0b80f00 | 322 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw dpaa) |
44d54014 SW |
323 | |
324 | PHONY += corenet64_smp_defconfig | |
325 | corenet64_smp_defconfig: | |
326 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
e0b80f00 | 327 | 85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw dpaa) |
44d54014 | 328 | |
43de32c5 AIB |
329 | PHONY += mpc86xx_defconfig |
330 | mpc86xx_defconfig: | |
331 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
332 | 86xx-hw fsl-emb-nonhw) | |
333 | ||
334 | PHONY += mpc86xx_smp_defconfig | |
335 | mpc86xx_smp_defconfig: | |
336 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
337 | 86xx-smp 86xx-hw fsl-emb-nonhw) | |
338 | ||
14cf11af | 339 | define archhelp |
70bf0333 GL |
340 | @echo '* zImage - Build default images selected by kernel config' |
341 | @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' | |
342 | @echo ' uImage - U-Boot native image format' | |
343 | @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' | |
344 | @echo ' versions which do not support device trees' | |
345 | @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' | |
346 | @echo ' simpleImage.<dt> - Firmware independent image.' | |
347 | @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' | |
14cf11af | 348 | @echo ' install - Install kernel using' |
caa27b66 SR |
349 | @echo ' (your) ~/bin/$(INSTALLKERNEL) or' |
350 | @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' | |
14cf11af | 351 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
437a58db | 352 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
70bf0333 GL |
353 | @echo '' |
354 | @echo ' Targets with <dt> embed a device tree blob inside the image' | |
355 | @echo ' These targets support board with firmware that does not' | |
356 | @echo ' support passing a device tree directly. Replace <dt> with the' | |
357 | @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' | |
358 | @echo ' (minus the .dts extension).' | |
14cf11af PM |
359 | endef |
360 | ||
3f85d63e | 361 | install: |
25431333 | 362 | $(Q)$(MAKE) $(build)=$(boot) install |
928370c6 | 363 | |
8150caad RM |
364 | vdso_install: |
365 | ifeq ($(CONFIG_PPC64),y) | |
366 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ | |
367 | endif | |
368 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ | |
369 | ||
14cf11af | 370 | archclean: |
a3a9e99e | 371 | $(Q)$(MAKE) $(clean)=$(boot) |
70567293 | 372 | |
14cf11af PM |
373 | archprepare: checkbin |
374 | ||
14cf11af PM |
375 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
376 | # to stdout and these checks are run even on install targets. | |
377 | TOUT := .tmp_gas_check | |
14cf11af | 378 | |
82a85084 AB |
379 | # Check gcc and binutils versions: |
380 | # - gcc-3.4 and binutils-2.14 are a fatal combination | |
381 | # - Require gcc 4.0 or above on 64-bit | |
382 | # - gcc-4.2.0 has issues compiling modules on 64-bit | |
14cf11af | 383 | checkbin: |
5631d9c4 | 384 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 385 | && test "$(cc-version)" = "0304" ; then \ |
14cf11af PM |
386 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
387 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ | |
388 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ | |
389 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ | |
390 | false; \ | |
391 | fi ; \ | |
392 | fi | |
5631d9c4 | 393 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 394 | && test "$(cc-version)" -lt "0400" \ |
82a85084 AB |
395 | && test "x${CONFIG_PPC64}" = "xy" ; then \ |
396 | echo -n "Sorry, GCC v4.0 or above is required to build " ; \ | |
397 | echo "the 64-bit powerpc kernel." ; \ | |
398 | false ; \ | |
399 | fi | |
5631d9c4 | 400 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 401 | && test "$(cc-fullversion)" = "040200" \ |
f5e83fa4 SB |
402 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
403 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ | |
404 | echo 'kernel with modules enabled.' ; \ | |
405 | echo -n '*** Please use a different GCC version or ' ; \ | |
406 | echo 'disable kernel modules' ; \ | |
407 | false ; \ | |
408 | fi | |
60e065f7 ME |
409 | @if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \ |
410 | && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \ | |
411 | echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \ | |
412 | echo 'in some circumstances.' ; \ | |
413 | echo -n '*** Please use a different binutils version.' ; \ | |
414 | false ; \ | |
415 | fi | |
416 | ||
14cf11af PM |
417 | |
418 | CLEAN_FILES += $(TOUT) | |
419 |