Commit | Line | Data |
---|---|---|
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) |
92d6cf2d | 69 | override CC += -mlittle-endian |
5631d9c4 | 70 | ifneq ($(cc-name),clang) |
92d6cf2d AB |
71 | override CC += -mno-strict-align |
72 | endif | |
d72b0801 IM |
73 | override AS += -mlittle-endian |
74 | override LD += -EL | |
75 | override CROSS32CC += -mlittle-endian | |
76 | override CROSS32AS += -mlittle-endian | |
77 | LDEMULATION := lppc | |
78 | GNUTARGET := powerpcle | |
79 | MULTIPLEWORD := -mno-multiple | |
d3d35d95 | 80 | KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect) |
d72b0801 | 81 | else |
924dd50b | 82 | ifeq ($(call cc-option-yn,-mbig-endian),y) |
d72b0801 IM |
83 | override CC += -mbig-endian |
84 | override AS += -mbig-endian | |
924dd50b | 85 | endif |
d72b0801 IM |
86 | override LD += -EB |
87 | LDEMULATION := ppc | |
88 | GNUTARGET := powerpc | |
89 | MULTIPLEWORD := -mmultiple | |
90 | endif | |
91 | ||
14cf11af | 92 | ifeq ($(HAS_BIARCH),y) |
2578bfae | 93 | override AS += -a$(CONFIG_WORD_SIZE) |
d72b0801 | 94 | override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION) |
2578bfae | 95 | override CC += -m$(CONFIG_WORD_SIZE) |
d72b0801 | 96 | override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR) |
14cf11af PM |
97 | endif |
98 | ||
9c5f7d39 SP |
99 | LDFLAGS_vmlinux-y := -Bstatic |
100 | LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie | |
101 | LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) | |
14cf11af | 102 | |
1fbe9cf2 AB |
103 | ifeq ($(CONFIG_PPC64),y) |
104 | ifeq ($(call cc-option-yn,-mcmodel=medium),y) | |
105 | # -mcmodel=medium breaks modules because it uses 32bit offsets from | |
106 | # the TOC pointer to create pointers where possible. Pointers into the | |
107 | # percpu data area are created by this method. | |
108 | # | |
109 | # The kernel module loader relocates the percpu data section from the | |
110 | # original location (starting with 0xd...) to somewhere in the base | |
111 | # kernel percpu data space (starting with 0xc...). We need a full | |
112 | # 64bit relocation for this to work, hence -mcmodel=large. | |
113 | KBUILD_CFLAGS_MODULE += -mcmodel=large | |
114 | else | |
115 | export NO_MINIMAL_TOC := -mno-minimal-toc | |
116 | endif | |
117 | endif | |
118 | ||
a50a862e | 119 | CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) |
721aeaa9 | 120 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
238abecd | 121 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc)) |
721aeaa9 AB |
122 | AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) |
123 | else | |
238abecd | 124 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc) |
721aeaa9 | 125 | endif |
238abecd | 126 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc)) |
98679fb0 | 127 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) |
d72b0801 | 128 | CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) |
d23c6fb4 | 129 | |
01718ba6 | 130 | ifeq ($(CONFIG_PPC_BOOK3S_64),y) |
d23c6fb4 | 131 | CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) |
01718ba6 SW |
132 | else |
133 | CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 | |
134 | endif | |
135 | ||
8c50b72a TD |
136 | ifdef CONFIG_MPROFILE_KERNEL |
137 | ifeq ($(shell $(srctree)/arch/powerpc/scripts/gcc-check-mprofile-kernel.sh $(CC) -I$(srctree)/include -D__KERNEL__),OK) | |
138 | CC_FLAGS_FTRACE := -pg -mprofile-kernel | |
139 | KBUILD_CPPFLAGS += -DCC_USING_MPROFILE_KERNEL | |
140 | else | |
141 | # If the user asked for mprofile-kernel but the toolchain doesn't | |
142 | # support it, emit a warning and deliberately break the build later | |
143 | # with mprofile-kernel-not-supported. We would prefer to make this an | |
144 | # error right here, but then the user would never be able to run | |
145 | # oldconfig to change their configuration. | |
146 | $(warning Compiler does not support mprofile-kernel, set CONFIG_DISABLE_MPROFILE_KERNEL) | |
147 | CC_FLAGS_FTRACE := -mprofile-kernel-not-supported | |
148 | endif | |
149 | endif | |
150 | ||
d23c6fb4 AB |
151 | CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) |
152 | CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) | |
153 | CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) | |
154 | CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) | |
155 | CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) | |
ff2e466a | 156 | CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8) |
d23c6fb4 | 157 | |
cbf8a358 TC |
158 | # Altivec option not allowed with e500mc64 in GCC. |
159 | ifeq ($(CONFIG_ALTIVEC),y) | |
160 | E5500_CPU := -mcpu=powerpc64 | |
161 | else | |
01718ba6 | 162 | E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) |
cbf8a358 | 163 | endif |
01718ba6 SW |
164 | CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) |
165 | CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) | |
166 | ||
847f56b0 SW |
167 | ifeq ($(CONFIG_PPC32),y) |
168 | ifeq ($(CONFIG_PPC_E500MC),y) | |
169 | CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) | |
170 | else | |
171 | CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) | |
172 | endif | |
173 | endif | |
174 | ||
7998eb3d GR |
175 | asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) |
176 | ||
177 | KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr) | |
58aedccb | 178 | KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y) |
a50a862e AB |
179 | KBUILD_CFLAGS += $(call cc-option,-msoft-float) |
180 | KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y) | |
a0f97e06 | 181 | CPP = $(CC) -E $(KBUILD_CFLAGS) |
14cf11af | 182 | |
2578bfae | 183 | CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ |
14cf11af | 184 | |
772320e8 | 185 | KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
7fca5dc8 | 186 | |
d5b35cff AP |
187 | ifeq ($(CONFIG_476FPE_ERR46),y) |
188 | KBUILD_LDFLAGS_MODULE += --ppc476-workaround \ | |
189 | -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds | |
190 | endif | |
191 | ||
d23c6fb4 | 192 | # No AltiVec or VSX instructions when building kernel |
a0f97e06 | 193 | KBUILD_CFLAGS += $(call cc-option,-mno-altivec) |
d23c6fb4 | 194 | KBUILD_CFLAGS += $(call cc-option,-mno-vsx) |
d3f67fbb | 195 | |
0197cd2e | 196 | # No SPE instruction when building kernel |
ce400c01 | 197 | # (We use all available options to help semi-broken compilers) |
0197cd2e | 198 | KBUILD_CFLAGS += $(call cc-option,-mno-spe) |
ce400c01 | 199 | KBUILD_CFLAGS += $(call cc-option,-mspe=no) |
0197cd2e | 200 | |
14cf11af PM |
201 | # Enable unit-at-a-time mode when possible. It shrinks the |
202 | # kernel considerably. | |
a0f97e06 | 203 | KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) |
14cf11af | 204 | |
d0679c73 AK |
205 | # FIXME: the module load should be taught about the additional relocs |
206 | # generated by this. | |
207 | # revert to pre-gcc-4.4 behaviour of .eh_frame | |
208 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | |
209 | ||
57647a4d BH |
210 | # Never use string load/store instructions as they are |
211 | # often slow when they are implemented at all | |
a50a862e | 212 | KBUILD_CFLAGS += $(call cc-option,-mno-string) |
14cf11af | 213 | |
f48b8296 | 214 | ifeq ($(CONFIG_6xx),y) |
a0f97e06 | 215 | KBUILD_CFLAGS += -mcpu=powerpc |
f48b8296 OH |
216 | endif |
217 | ||
7563dc64 | 218 | # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
606576ce | 219 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
7563dc64 TB |
220 | KBUILD_CFLAGS += -mno-sched-epilog |
221 | endif | |
222 | ||
14cf11af | 223 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
e1fc235d | 224 | cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec |
14cf11af PM |
225 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
226 | ||
222d394d | 227 | KBUILD_AFLAGS += $(cpu-as-y) |
a0f97e06 | 228 | KBUILD_CFLAGS += $(cpu-as-y) |
14cf11af | 229 | |
2578bfae | 230 | head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o |
14cf11af | 231 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
15f6527e | 232 | head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o |
14cf11af PM |
233 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
234 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o | |
235 | ||
9994a338 | 236 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
14cf11af | 237 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
e821ea70 | 238 | head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
5ac47f7a | 239 | head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o |
14cf11af | 240 | |
daec962e | 241 | core-y += arch/powerpc/kernel/ \ |
daec962e PM |
242 | arch/powerpc/mm/ \ |
243 | arch/powerpc/lib/ \ | |
244 | arch/powerpc/sysdev/ \ | |
1a3d1fc2 | 245 | arch/powerpc/platforms/ \ |
0ca87f05 | 246 | arch/powerpc/math-emu/ \ |
323a6bf1 | 247 | arch/powerpc/crypto/ \ |
0ca87f05 | 248 | arch/powerpc/net/ |
f78541dc | 249 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
bbf45ba5 | 250 | core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
f2699491 | 251 | core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ |
14cf11af PM |
252 | |
253 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ | |
254 | ||
135f0b17 | 255 | # Default to zImage, override when needed |
25431333 | 256 | all: zImage |
14cf11af | 257 | |
e32e78c5 | 258 | # With make 3.82 we cannot mix normal and wildcard targets |
c686ecf5 | 259 | BOOT_TARGETS1 := zImage zImage.initrd uImage |
11eab297 | 260 | BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.% |
cabb5587 | 261 | |
e32e78c5 | 262 | PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) |
cabb5587 | 263 | |
94b212c2 | 264 | boot := arch/$(ARCH)/boot |
14cf11af | 265 | |
144ef909 TB |
266 | ifeq ($(CONFIG_RELOCATABLE),y) |
267 | quiet_cmd_relocs_check = CALL $< | |
a71aa05e | 268 | cmd_relocs_check = $(CONFIG_SHELL) $< "$(OBJDUMP)" "$(obj)/vmlinux" |
144ef909 TB |
269 | |
270 | PHONY += relocs_check | |
a71aa05e | 271 | relocs_check: arch/powerpc/relocs_check.sh vmlinux |
144ef909 TB |
272 | $(call cmd,relocs_check) |
273 | ||
274 | zImage: relocs_check | |
275 | endif | |
276 | ||
e32e78c5 SR |
277 | $(BOOT_TARGETS1): vmlinux |
278 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
279 | $(BOOT_TARGETS2): vmlinux | |
280 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) | |
281 | ||
282 | ||
283 | bootwrapper_install: | |
20f62954 | 284 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
773f76b1 | 285 | |
8662d0bc | 286 | %.dtb: scripts |
773f76b1 | 287 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
14cf11af | 288 | |
ea4d1a87 CB |
289 | # Used to create 'merged defconfigs' |
290 | # To use it $(call) it with the first argument as the base defconfig | |
291 | # and the second argument as a space separated list of .config files to merge, | |
292 | # without the .config suffix. | |
293 | define merge_into_defconfig | |
294 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ | |
295 | -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \ | |
296 | $(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config) | |
297 | +$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig | |
298 | endef | |
299 | ||
300 | PHONY += pseries_le_defconfig | |
301 | pseries_le_defconfig: | |
302 | $(call merge_into_defconfig,pseries_defconfig,le) | |
303 | ||
2adc48a6 ME |
304 | PHONY += ppc64le_defconfig |
305 | ppc64le_defconfig: | |
306 | $(call merge_into_defconfig,ppc64_defconfig,le) | |
307 | ||
44d54014 SW |
308 | PHONY += mpc85xx_defconfig |
309 | mpc85xx_defconfig: | |
310 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
311 | 85xx-32bit 85xx-hw fsl-emb-nonhw) | |
312 | ||
313 | PHONY += mpc85xx_smp_defconfig | |
314 | mpc85xx_smp_defconfig: | |
315 | $(call merge_into_defconfig,mpc85xx_basic_defconfig,\ | |
316 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw) | |
317 | ||
318 | PHONY += corenet32_smp_defconfig | |
319 | corenet32_smp_defconfig: | |
320 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
321 | 85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw) | |
322 | ||
323 | PHONY += corenet64_smp_defconfig | |
324 | corenet64_smp_defconfig: | |
325 | $(call merge_into_defconfig,corenet_basic_defconfig,\ | |
326 | 85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw) | |
327 | ||
43de32c5 AIB |
328 | PHONY += mpc86xx_defconfig |
329 | mpc86xx_defconfig: | |
330 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
331 | 86xx-hw fsl-emb-nonhw) | |
332 | ||
333 | PHONY += mpc86xx_smp_defconfig | |
334 | mpc86xx_smp_defconfig: | |
335 | $(call merge_into_defconfig,mpc86xx_basic_defconfig,\ | |
336 | 86xx-smp 86xx-hw fsl-emb-nonhw) | |
337 | ||
14cf11af | 338 | define archhelp |
70bf0333 GL |
339 | @echo '* zImage - Build default images selected by kernel config' |
340 | @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' | |
341 | @echo ' uImage - U-Boot native image format' | |
342 | @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' | |
343 | @echo ' versions which do not support device trees' | |
344 | @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' | |
345 | @echo ' simpleImage.<dt> - Firmware independent image.' | |
346 | @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' | |
14cf11af | 347 | @echo ' install - Install kernel using' |
caa27b66 SR |
348 | @echo ' (your) ~/bin/$(INSTALLKERNEL) or' |
349 | @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' | |
14cf11af | 350 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
437a58db | 351 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
70bf0333 GL |
352 | @echo '' |
353 | @echo ' Targets with <dt> embed a device tree blob inside the image' | |
354 | @echo ' These targets support board with firmware that does not' | |
355 | @echo ' support passing a device tree directly. Replace <dt> with the' | |
356 | @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' | |
357 | @echo ' (minus the .dts extension).' | |
14cf11af PM |
358 | endef |
359 | ||
3f85d63e | 360 | install: |
25431333 | 361 | $(Q)$(MAKE) $(build)=$(boot) install |
928370c6 | 362 | |
8150caad RM |
363 | vdso_install: |
364 | ifeq ($(CONFIG_PPC64),y) | |
365 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ | |
366 | endif | |
367 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ | |
368 | ||
14cf11af | 369 | archclean: |
a3a9e99e | 370 | $(Q)$(MAKE) $(clean)=$(boot) |
70567293 | 371 | |
14cf11af PM |
372 | archprepare: checkbin |
373 | ||
14cf11af PM |
374 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
375 | # to stdout and these checks are run even on install targets. | |
376 | TOUT := .tmp_gas_check | |
14cf11af | 377 | |
82a85084 AB |
378 | # Check gcc and binutils versions: |
379 | # - gcc-3.4 and binutils-2.14 are a fatal combination | |
380 | # - Require gcc 4.0 or above on 64-bit | |
381 | # - gcc-4.2.0 has issues compiling modules on 64-bit | |
14cf11af | 382 | checkbin: |
5631d9c4 | 383 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 384 | && test "$(cc-version)" = "0304" ; then \ |
14cf11af PM |
385 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
386 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ | |
387 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ | |
388 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ | |
389 | false; \ | |
390 | fi ; \ | |
391 | fi | |
5631d9c4 | 392 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 393 | && test "$(cc-version)" -lt "0400" \ |
82a85084 AB |
394 | && test "x${CONFIG_PPC64}" = "xy" ; then \ |
395 | echo -n "Sorry, GCC v4.0 or above is required to build " ; \ | |
396 | echo "the 64-bit powerpc kernel." ; \ | |
397 | false ; \ | |
398 | fi | |
5631d9c4 | 399 | @if test "$(cc-name)" != "clang" \ |
e79c8385 | 400 | && test "$(cc-fullversion)" = "040200" \ |
f5e83fa4 SB |
401 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
402 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ | |
403 | echo 'kernel with modules enabled.' ; \ | |
404 | echo -n '*** Please use a different GCC version or ' ; \ | |
405 | echo 'disable kernel modules' ; \ | |
406 | false ; \ | |
407 | fi | |
60e065f7 ME |
408 | @if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \ |
409 | && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \ | |
410 | echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \ | |
411 | echo 'in some circumstances.' ; \ | |
412 | echo -n '*** Please use a different binutils version.' ; \ | |
413 | false ; \ | |
414 | fi | |
415 | ||
14cf11af PM |
416 | |
417 | CLEAN_FILES += $(TOUT) | |
418 |