1 # This file is included by the global makefile !! 1 #
2 # architecture-specific flags and dependencies !! 2 # alpha/Makefile
3 # 3 #
4 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
6 # for more details. 6 # for more details.
7 # 7 #
8 # Copyright (C) 1994 by Linus Torvalds 8 # Copyright (C) 1994 by Linus Torvalds
9 # Changes for PPC by Gary Thomas <<
10 # Rewritten by Cort Dougan and Paul Mackerras <<
11 # 9 #
12 10
13 ifdef cross_compiling !! 11 NM := $(NM) -B
14 ifeq ($(CROSS_COMPILE),) <<
15 # Auto detect cross compiler prefix. <<
16 # Look for: (powerpc(64(le)?)?)(-unknown)? <<
17 CC_ARCHES := powerpc powerpc64 powerpc64le <<
18 CC_SUFFIXES := linux linux-gnu unknown-lin <<
19 CROSS_COMPILE := $(call cc-cross-prefix, $ <<
20 $(foreach s,$(CC_SUFFIX <<
21 endif <<
22 endif <<
23 <<
24 HAS_BIARCH := $(call cc-option-yn, -m32) <<
25 <<
26 # Set default 32 bits cross compilers for vdso <<
27 CROSS32_COMPILE ?= <<
28 <<
29 # If we're on a ppc/ppc64/ppc64le machine use <<
30 # ppc64le_defconfig because we have nothing be <<
31 uname := $(shell uname -m) <<
32 KBUILD_DEFCONFIG := $(if $(filter ppc%,$(uname <<
33 <<
34 new_nm := $(shell if $(NM) --help 2>&1 | grep <<
35 <<
36 ifeq ($(new_nm),y) <<
37 NM := $(NM) --synthetic <<
38 endif <<
39 <<
40 # BITS is used as extension for files which ar <<
41 # and a 64 bit version to simplify shared Make <<
42 # e.g.: obj-y += foo_$(BITS).o <<
43 export BITS <<
44 <<
45 ifdef CONFIG_PPC64 <<
46 BITS := 64 <<
47 else <<
48 BITS := 32 <<
49 endif <<
50 <<
51 machine-y = ppc <<
52 machine-$(CONFIG_PPC64) += 64 <<
53 machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le <<
54 UTS_MACHINE := $(subst $(space),,$(machine-y)) <<
55 <<
56 ifeq ($(CONFIG_PPC64)$(CONFIG_LD_IS_BFD),yy) <<
57 # Have the linker provide sfpr if possible. <<
58 # There is a corresponding test in arch/powerp <<
59 KBUILD_LDFLAGS_MODULE += --save-restore-funcs <<
60 else <<
61 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crts <<
62 endif <<
63 <<
64 ifdef CONFIG_CPU_LITTLE_ENDIAN <<
65 KBUILD_CFLAGS += -mlittle-endian <<
66 KBUILD_LDFLAGS += -EL <<
67 LDEMULATION := lppc <<
68 GNUTARGET := powerpcle <<
69 MULTIPLEWORD := -mno-multiple <<
70 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno- <<
71 else <<
72 KBUILD_CFLAGS += $(call cc-option,-mbig-endian <<
73 KBUILD_LDFLAGS += -EB <<
74 LDEMULATION := ppc <<
75 GNUTARGET := powerpc <<
76 MULTIPLEWORD := -mmultiple <<
77 endif <<
78 <<
79 ifdef CONFIG_PPC64 <<
80 ifndef CONFIG_CC_IS_CLANG <<
81 cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c <<
82 cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c <<
83 aflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c <<
84 aflags-$(CONFIG_PPC64_ELF_ABI_V2) += -ma <<
85 endif <<
86 endif <<
87 <<
88 ifndef CONFIG_CC_IS_CLANG <<
89 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mn <<
90 endif <<
91 <<
92 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(c <<
93 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml <<
94 aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(c <<
95 aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml <<
96 <<
97 ifeq ($(HAS_BIARCH),y) <<
98 KBUILD_CFLAGS += -m$(BITS) <<
99 KBUILD_AFLAGS += -m$(BITS) <<
100 KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION) <<
101 endif <<
102 <<
103 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro <<
104 ifdef CONFIG_PPC64 <<
105 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro <<
106 else <<
107 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro <<
108 endif <<
109 <<
110 LDFLAGS_vmlinux-y := -Bstatic <<
111 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie <<
112 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) += -z no <<
113 LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) <<
114 <<
115 ifdef CONFIG_PPC64 <<
116 ifndef CONFIG_PPC_KERNEL_PCREL <<
117 # -mcmodel=medium breaks modules becau <<
118 # the TOC pointer to create pointers w <<
119 # percpu data area are created by this <<
120 # <<
121 # The kernel module loader relocates t <<
122 # original location (starting with 0xd <<
123 # kernel percpu data space (starting w <<
124 # 64bit relocation for this to work, h <<
125 KBUILD_CFLAGS_MODULE += -mcmodel=large <<
126 endif <<
127 endif <<
128 <<
129 CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-m <<
130 ifdef CONFIG_PPC64_ELF_ABI_V2 <<
131 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
132 else <<
133 ifndef CONFIG_CC_IS_CLANG <<
134 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
135 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
136 endif <<
137 endif <<
138 CFLAGS-$(CONFIG_PPC64) += -mcmodel=medium <<
139 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
140 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
141 <<
142 # Clang unconditionally reserves r2 on ppc32 a <<
143 # https://llvm.org/pr39555 <<
144 CFLAGS-$(CONFIG_PPC32) := $(call cc-option, - <<
145 <<
146 # Clang doesn't support -mmultiple / -mno-mult <<
147 # https://llvm.org/pr39556 <<
148 CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $ <<
149 <<
150 CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-m <<
151 <<
152 CC_FLAGS_FPU := $(call cc-option,-m <<
153 CC_FLAGS_NO_FPU := $(call cc-option,-m <<
154 <<
155 ifdef CONFIG_FUNCTION_TRACER <<
156 ifdef CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENT <<
157 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI <<
158 CC_FLAGS_FTRACE := -fpatchable-function-entry= <<
159 else <<
160 CC_FLAGS_FTRACE := -pg <<
161 ifdef CONFIG_MPROFILE_KERNEL <<
162 CC_FLAGS_FTRACE += -mprofile-kernel <<
163 endif <<
164 endif <<
165 endif <<
166 <<
167 CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO <<
168 AFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO <<
169 <<
170 CFLAGS-y += $(CONFIG_TUNE_CPU) <<
171 <<
172 asinstr := $(call as-instr,lis 9$(comma)foo@hi <<
173 <<
174 KBUILD_CPPFLAGS += -I $(srctree)/arch/powerpc <<
175 KBUILD_AFLAGS += $(AFLAGS-y) <<
176 KBUILD_CFLAGS += $(CC_FLAGS_NO_FPU) <<
177 KBUILD_CFLAGS += $(CFLAGS-y) <<
178 CPP = $(CC) -E $(KBUILD_CFLAGS) <<
179 <<
180 CHECKFLAGS += -m$(BITS) -D__powerpc__ -D_ <<
181 ifdef CONFIG_CPU_BIG_ENDIAN <<
182 CHECKFLAGS += -D__BIG_ENDIAN__ <<
183 else <<
184 CHECKFLAGS += -D__LITTLE_ENDIAN__ <<
185 endif <<
186 <<
187 ifdef CONFIG_476FPE_ERR46 <<
188 KBUILD_LDFLAGS_MODULE += --ppc476-work <<
189 -T $(srctree)/arch/powerpc/pla <<
190 endif <<
191 <<
192 # No prefix or pcrel <<
193 ifdef CONFIG_PPC_KERNEL_PREFIXED <<
194 KBUILD_CFLAGS += $(call cc-option,-mprefixed) <<
195 else <<
196 KBUILD_CFLAGS += $(call cc-option,-mno-prefixe <<
197 endif <<
198 ifdef CONFIG_PPC_KERNEL_PCREL <<
199 KBUILD_CFLAGS += $(call cc-option,-mpcrel) <<
200 else <<
201 KBUILD_CFLAGS += $(call cc-option,-mno-pcrel) <<
202 endif <<
203 <<
204 # No AltiVec or VSX or MMA instructions when b <<
205 KBUILD_CFLAGS += $(call cc-option,-mno-altivec <<
206 KBUILD_CFLAGS += $(call cc-option,-mno-vsx) <<
207 KBUILD_CFLAGS += $(call cc-option,-mno-mma) <<
208 <<
209 # No SPE instruction when building kernel <<
210 # (We use all available options to help semi-b <<
211 KBUILD_CFLAGS += $(call cc-option,-mno-spe) <<
212 KBUILD_CFLAGS += $(call cc-option,-mspe=no) <<
213 <<
214 # Don't emit .eh_frame since we have no use fo <<
215 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
216 <<
217 # Never use string load/store instructions as <<
218 # often slow when they are implemented at all <<
219 KBUILD_CFLAGS += $(call cc-option,-m <<
220 <<
221 KBUILD_AFLAGS += $(aflags-y) <<
222 KBUILD_CFLAGS += $(cflags-y) <<
223 <<
224 # Default to zImage, override when needed <<
225 all: zImage <<
226 <<
227 # With make 3.82 we cannot mix normal and wild <<
228 BOOT_TARGETS1 := zImage zImage.initrd uImage <<
229 BOOT_TARGETS2 := zImage% dtbImage% treeImage.% <<
230 <<
231 PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) <<
232 <<
233 boot := arch/powerpc/boot <<
234 <<
235 $(BOOT_TARGETS1): vmlinux <<
236 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
237 $(BOOT_TARGETS2): vmlinux <<
238 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
239 <<
240 <<
241 PHONY += bootwrapper_install <<
242 bootwrapper_install: <<
243 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
244 <<
245 include $(srctree)/scripts/Makefile.defconf <<
246 <<
247 generated_configs += ppc64le_defconfig <<
248 ppc64le_defconfig: <<
249 $(call merge_into_defconfig,ppc64_defc <<
250 <<
251 generated_configs += ppc64le_guest_defconfig <<
252 ppc64le_guest_defconfig: <<
253 $(call merge_into_defconfig,ppc64_defc <<
254 <<
255 generated_configs += ppc64_guest_defconfig <<
256 ppc64_guest_defconfig: <<
257 $(call merge_into_defconfig,ppc64_defc <<
258 <<
259 generated_configs += pseries_le_defconfig <<
260 pseries_le_defconfig: ppc64le_guest_defconfig <<
261 <<
262 generated_configs += pseries_defconfig <<
263 pseries_defconfig: ppc64le_guest_defconfig <<
264 <<
265 generated_configs += powernv_be_defconfig <<
266 powernv_be_defconfig: <<
267 $(call merge_into_defconfig,powernv_de <<
268 <<
269 generated_configs += mpc85xx_defconfig <<
270 mpc85xx_defconfig: <<
271 $(call merge_into_defconfig,mpc85xx_ba <<
272 85xx-32bit 85xx-hw fsl-emb-non <<
273 <<
274 generated_configs += mpc85xx_smp_defconfig <<
275 mpc85xx_smp_defconfig: <<
276 $(call merge_into_defconfig,mpc85xx_ba <<
277 85xx-32bit 85xx-smp 85xx-hw fs <<
278 <<
279 generated_configs += corenet32_smp_defconfig <<
280 corenet32_smp_defconfig: <<
281 $(call merge_into_defconfig,corenet_ba <<
282 85xx-32bit 85xx-smp 85xx-hw fs <<
283 <<
284 generated_configs += corenet64_smp_defconfig <<
285 corenet64_smp_defconfig: <<
286 $(call merge_into_defconfig,corenet_ba <<
287 85xx-64bit 85xx-smp altivec 85 <<
288 <<
289 generated_configs += mpc86xx_defconfig <<
290 mpc86xx_defconfig: <<
291 $(call merge_into_defconfig,mpc86xx_ba <<
292 86xx-hw fsl-emb-nonhw) <<
293 <<
294 generated_configs += mpc86xx_smp_defconfig <<
295 mpc86xx_smp_defconfig: <<
296 $(call merge_into_defconfig,mpc86xx_ba <<
297 86xx-smp 86xx-hw fsl-emb-nonhw <<
298 <<
299 generated_configs += ppc32_allmodconfig <<
300 ppc32_allmodconfig: <<
301 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
302 -f $(srctree)/Makefile allmodc <<
303 <<
304 generated_configs += ppc44x_allmodconfig <<
305 ppc44x_allmodconfig: <<
306 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
307 -f $(srctree)/Makefile allmodc <<
308 <<
309 generated_configs += ppc8xx_allmodconfig <<
310 ppc8xx_allmodconfig: <<
311 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
312 -f $(srctree)/Makefile allmodc <<
313 <<
314 generated_configs += ppc85xx_allmodconfig <<
315 ppc85xx_allmodconfig: <<
316 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
317 -f $(srctree)/Makefile allmodc <<
318 <<
319 generated_configs += ppc_defconfig <<
320 ppc_defconfig: <<
321 $(call merge_into_defconfig,book3s_32. <<
322 <<
323 generated_configs += ppc64le_allmodconfig <<
324 ppc64le_allmodconfig: <<
325 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
326 -f $(srctree)/Makefile allmodc <<
327 <<
328 generated_configs += ppc64le_allnoconfig <<
329 ppc64le_allnoconfig: <<
330 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
331 -f $(srctree)/Makefile allnoco <<
332 <<
333 generated_configs += ppc64_book3e_allmodconfig <<
334 ppc64_book3e_allmodconfig: <<
335 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
336 -f $(srctree)/Makefile allmodc <<
337 <<
338 generated_configs += ppc32_randconfig <<
339 ppc32_randconfig: <<
340 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
341 -f $(srctree)/Makefile randcon <<
342 <<
343 generated_configs += ppc64_randconfig <<
344 ppc64_randconfig: <<
345 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
346 -f $(srctree)/Makefile randcon <<
347 12
348 PHONY += $(generated_configs) !! 13 LDFLAGS_vmlinux := -static -N #-relax
>> 14 CHECKFLAGS += -D__alpha__
>> 15 cflags-y := -pipe -mno-fp-regs -ffixed-8
>> 16 cflags-y += $(call cc-option, -fno-jump-tables)
349 17
350 define archhelp !! 18 cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56
351 echo '* zImage - Build default imag !! 19 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56
352 echo ' zImage.* - Compressed kernel !! 20 cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56
353 echo ' uImage - U-Boot native imag !! 21 cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6
354 echo ' cuImage.<dt> - Backwards compatib !! 22 cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67
355 echo ' versions which do !! 23 # If GENERIC, make sure to turn off any instruction set extensions that
356 echo ' dtbImage.<dt> - zImage with an emb !! 24 # the host compiler might have on by default.
357 echo ' simpleImage.<dt> - Firmware independ !! 25 cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev56 -mtune=ev6
358 echo ' treeImage.<dt> - Support for older <<
359 echo ' install - Install kernel usi <<
360 echo ' (your) ~/bin/$(INS <<
361 echo ' (distribution) /sb <<
362 echo ' install to $$(INST <<
363 echo ' *_defconfig - Select default con <<
364 echo '' <<
365 echo ' Targets with <dt> embed a device tre <<
366 echo ' These targets support board with fir <<
367 echo ' support passing a device tree direct <<
368 echo ' name of a dts file from the arch/pow <<
369 echo ' (minus the .dts extension).' <<
370 echo <<
371 $(foreach cfg,$(generated_configs), <<
372 printf " %-27s - Build for %s\\n" $(cfg) <<
373 endef <<
374 26
375 PHONY += install !! 27 cflags-y += $(cpuflags-y)
376 install: <<
377 $(call cmd,install) <<
378 <<
379 ifeq ($(KBUILD_EXTMOD),) <<
380 # We need to generate vdso-offsets.h before co <<
381 # In order to do that, we should use the archp <<
382 # asm-offsets.h is included in some files used <<
383 # asm-offsets.h is built in prepare0, for whic <<
384 # Therefore we need to generate the header aft <<
385 # this hack. <<
386 prepare: vdso_prepare <<
387 vdso_prepare: prepare0 <<
388 $(if $(CONFIG_VDSO32),$(Q)$(MAKE) \ <<
389 $(build)=arch/powerpc/kernel/v <<
390 $(if $(CONFIG_PPC64),$(Q)$(MAKE) \ <<
391 $(build)=arch/powerpc/kernel/v <<
392 endif <<
393 28
394 archprepare: checkbin <<
395 29
396 archheaders: !! 30 # For TSUNAMI, we must have the assembler not emulate our instructions.
397 $(Q)$(MAKE) $(build)=arch/powerpc/kern !! 31 # The same is true for IRONGATE, POLARIS, PYXIS.
>> 32 # BWX is most important, but we don't really want any emulation ever.
>> 33 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
>> 34
>> 35 libs-y += arch/alpha/lib/
>> 36
>> 37 # export what is needed by arch/alpha/boot/Makefile
>> 38 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
>> 39 export LIBS_Y
>> 40
>> 41 boot := arch/alpha/boot
398 42
399 ifdef CONFIG_STACKPROTECTOR !! 43 #Default target when executing make with no arguments
400 prepare: stack_protector_prepare !! 44 all boot: $(boot)/vmlinux.gz
401 45
402 PHONY += stack_protector_prepare !! 46 $(boot)/vmlinux.gz: vmlinux
403 stack_protector_prepare: prepare0 !! 47 $(Q)$(MAKE) $(build)=$(boot) $@
404 ifdef CONFIG_PPC64 !! 48
405 $(eval KBUILD_CFLAGS += -mstack-protec !! 49 bootimage bootpfile bootpzfile: vmlinux
406 else !! 50 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
407 $(eval KBUILD_CFLAGS += -mstack-protec !! 51
408 endif !! 52 archheaders:
409 endif !! 53 $(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
410 !! 54
411 PHONY += checkbin !! 55 define archhelp
412 checkbin: !! 56 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
413 @if test "x${CONFIG_FTRACE_MCOUNT_USE_ !! 57 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)'
414 "x${CONFIG_LD_IS_BFD}" = "xy" !! 58 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)'
415 "${CONFIG_LD_VERSION}" = "2370 !! 59 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
416 echo -n '*** binutils 2.37 dro !! 60 endef
417 echo 'is unable to handle.' ; <<
418 echo '*** Please use a differe <<
419 false ; \ <<
420 fi <<
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