1 # SPDX-License-Identifier: GPL-2.0
2 # Makefile for making ELF bootable images for
3 # using Open Firmware.
4 #
5 # Geert Uytterhoeven September 1997
6 #
7 # Based on coffboot by Paul Mackerras
8 # Simplified for ppc64 by Todd Inglett
9 #
10 # NOTE: this code may be built for 32 bit in E
11 # it packages a 64 bit kernel. We do th
12 # bootloader and increase compatibility
13 #
14 # To this end we need to define BOOTCC,
15 # needed to build the 32 bit image. Tha
16 # compiler for the rest of the kernel, w
17 # To make it easier to setup a cross com
18 # CROSS32_COMPILE is setup as a prefix j
19 # in the toplevel makefile.
20
21 all: $(obj)/zImage
22
23 ifdef CROSS32_COMPILE
24 ifdef CONFIG_CC_IS_CLANG
25 BOOTCC := $(CROSS32_COMPILE)clang
26 else
27 BOOTCC := $(CROSS32_COMPILE)gcc
28 endif
29 BOOTAR := $(CROSS32_COMPILE)ar
30 else
31 BOOTCC := $(CC)
32 BOOTAR := $(AR)
33 endif
34
35 ifdef CONFIG_PPC64_BOOT_WRAPPER
36 BOOTTARGETFLAGS += -m64
37 BOOTTARGETFLAGS += -mabi=elfv2
38 ifdef CONFIG_PPC64_ELF_ABI_V2
39 BOOTTARGETFLAGS += $(call cc-option,-mabi=elfv
40 endif
41 else
42 BOOTTARGETFLAGS := -m32
43 endif
44
45 ifdef CONFIG_TARGET_CPU_BOOL
46 BOOTTARGETFLAGS += -mcpu=$(CONFIG_TARGET_CPU)
47 else ifdef CONFIG_PPC64_BOOT_WRAPPER
48 ifdef CONFIG_CPU_LITTLE_ENDIAN
49 BOOTTARGETFLAGS += -mcpu=powerpc64le
50 else
51 BOOTTARGETFLAGS += -mcpu=powerpc64
52 endif
53 endif
54
55 $(obj)/4xx.o: BOOTTARGETFLAGS += -mcpu=405
56 $(obj)/ebony.o: BOOTTARGETFLAGS += -mcpu=440
57 $(obj)/cuboot-taishan.o: BOOTTARGETFLAGS += -m
58 $(obj)/cuboot-katmai.o: BOOTTARGETFLAGS += -mc
59 $(obj)/treeboot-iss4xx.o: BOOTTARGETFLAGS += -
60 $(obj)/treeboot-currituck.o: BOOTTARGETFLAGS +
61 $(obj)/treeboot-akebono.o: BOOTTARGETFLAGS +=
62
63 ifdef CONFIG_CPU_BIG_ENDIAN
64 BOOTTARGETFLAGS += -mbig-endian
65 else
66 BOOTTARGETFLAGS += -mlittle-endian
67 endif
68
69 BOOTCPPFLAGS := -nostdinc $(LINUXINCLUDE)
70 BOOTCPPFLAGS += -isystem $(shell $(BOOTCC)
71
72 BOOTCFLAGS := $(BOOTTARGETFLAGS) \
73 -Wall -Wundef -Wstrict-prot
74 -fno-strict-aliasing -O2 \
75 -msoft-float -mno-altivec -
76 $(call cc-option,-mno-prefi
77 $(call cc-option,-mno-pcrel
78 $(call cc-option,-mno-mma)
79 $(call cc-option,-mno-spe)
80 -fomit-frame-pointer -fno-b
81
82 BOOTAFLAGS := $(BOOTTARGETFLAGS) -D__ASSE
83
84 BOOTARFLAGS := -crD
85
86 ifdef CONFIG_CC_IS_CLANG
87 BOOTCFLAGS += $(CLANG_FLAGS)
88 BOOTAFLAGS += $(CLANG_FLAGS)
89 endif
90
91 ifdef CONFIG_DEBUG_INFO
92 BOOTCFLAGS += -g
93 endif
94
95 ifeq ($(call cc-option-yn, -fstack-protector),
96 BOOTCFLAGS += -fno-stack-protector
97 endif
98
99 BOOTCFLAGS += -include $(srctree)/include
100 BOOTCFLAGS += -I$(objtree)/$(obj) -I$(src
101
102 DTC_FLAGS ?= -p 1024
103
104 # The pre-boot decompressors pull in a lot of
105 # files. This creates a bit of a dependency he
106 # these files into the build dir, fix up any i
107 # files are copied in the right order.
108
109 # these need to be separate variables because
110 # directories in the kernel tree. Sure you COU
111 # cure-is-worse-than-disease situation.
112 zlib-decomp-$(CONFIG_KERNEL_GZIP) := decompres
113 zlib-$(CONFIG_KERNEL_GZIP) := inffast.c inflat
114 zlibheader-$(CONFIG_KERNEL_GZIP) := inffast.h
115 zliblinuxheader-$(CONFIG_KERNEL_GZIP) := zlib.
116
117 $(addprefix $(obj)/, decompress.o): \
118 $(addprefix $(obj)/,$(zlib-decomp-y))
119
120 $(addprefix $(obj)/, $(zlib-decomp-y)): \
121 $(addprefix $(obj)/,$(zliblinuxheader-
122 $(addprefix $(obj)/,$(zlibheader-y)) \
123 $(addprefix $(obj)/,$(zlib-y))
124
125 $(addprefix $(obj)/,$(zlib-y)): \
126 $(addprefix $(obj)/,$(zliblinuxheader-
127 $(addprefix $(obj)/,$(zlibheader-y))
128
129 libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_s
130 libfdtheader := fdt.h libfdt.h libfdt_internal
131
132 $(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o
133 treeboot-akebono.o treeboot-currituck.
134 $(addprefix $(obj)/,$(libfdtheader))
135
136 src-wlib-y := string.S crt0.S stdio.c decompre
137 $(libfdt) libfdt-wrapper.c \
138 ns16550.c serial.c simple_allo
139 elf_util.c $(zlib-y) devtree.c
140 oflib.c ofconsole.c cuboot.c
141
142 src-wlib-$(CONFIG_PPC_MPC52xx) += mpc52xx-psc.
143 src-wlib-$(CONFIG_PPC_POWERNV) += opal-calls.S
144 ifndef CONFIG_PPC64_BOOT_WRAPPER
145 src-wlib-y += crtsavres.S
146 endif
147 src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo
148 src-wlib-$(CONFIG_PPC_8xx) += mpc8xx.c planetc
149 src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c
150 src-wlib-$(CONFIG_EMBEDDED6xx) += ugecon.c fsl
151 src-wlib-$(CONFIG_CPM) += cpm-serial.c
152
153 src-plat-y := of.c epapr.c
154 src-plat-$(CONFIG_44x) += treeboot-ebony.c cub
155 cuboot-bamboo.
156 cuboot-sequoia
157 cuboot-taishan
158 cuboot-warp.c
159 treeboot-iss4x
160 treeboot-akebo
161 simpleboot.c f
162 src-plat-$(CONFIG_PPC_8xx) += cuboot-8xx.c fix
163 src-plat-$(CONFIG_PPC_MPC52xx) += cuboot-52xx.
164 src-plat-$(CONFIG_PPC_82xx) += cuboot-pq2.c fi
165 src-plat-$(CONFIG_PPC_83xx) += cuboot-83xx.c f
166 src-plat-$(CONFIG_FSL_SOC_BOOKE) += cuboot-85x
167 src-plat-$(CONFIG_EMBEDDED6xx) += cuboot-pq2.c
168 gamecu
169 wii-he
170 fixed-
171 src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone
172 src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-h
173 src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr
174 src-plat-$(CONFIG_PPC_PSERIES) += pseries-head
175 src-plat-$(CONFIG_PPC_POWERNV) += pseries-head
176 src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseri
177 src-plat-$(CONFIG_MVME7100) += motload-head.S
178
179 src-plat-$(CONFIG_PPC_MICROWATT) += fixed-head
180
181 src-wlib := $(sort $(src-wlib-y))
182 src-plat := $(sort $(src-plat-y))
183 src-boot := $(src-wlib) $(src-plat) empty.c
184
185 src-boot := $(addprefix $(obj)/, $(src-boot))
186 obj-boot := $(addsuffix .o, $(basename $(src-b
187 obj-wlib := $(addsuffix .o, $(basename $(addpr
188 obj-plat := $(addsuffix .o, $(basename $(addpr
189 obj-plat: $(libfdt)
190
191 quiet_cmd_copy_kern_src = COPY $@
192 cmd_copy_kern_src = sed -f $(srctree)/ar
193
194 $(addprefix $(obj)/,$(zlib-y)): $(obj)/%: $(sr
195 $(call cmd,copy_kern_src)
196
197 $(addprefix $(obj)/,$(zlibheader-y)): $(obj)/%
198 $(call cmd,copy_kern_src)
199
200 $(addprefix $(obj)/,$(zliblinuxheader-y)): $(o
201 $(call cmd,copy_kern_src)
202
203 $(addprefix $(obj)/,$(zlib-decomp-y)): $(obj)/
204 $(call cmd,copy_kern_src)
205
206 quiet_cmd_copy_libfdt = COPY $@
207 cmd_copy_libfdt = cp $< $@
208
209 $(addprefix $(obj)/,$(libfdt) $(libfdtheader))
210 $(call cmd,copy_libfdt)
211
212 $(obj)/empty.c:
213 $(Q)touch $@
214
215 $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds :
216 $(Q)cp $< $@
217
218 clean-files := $(zlib-) $(zlibheader-) $(zlibl
219 $(zlib-decomp-) $(libfdt) $(li
220 empty.c zImage.coff.lds zImage
221
222 quiet_cmd_bootcc = BOOTCC $@
223 cmd_bootcc = $(BOOTCC) -Wp,-MD,$(depfile
224
225 quiet_cmd_bootas = BOOTAS $@
226 cmd_bootas = $(BOOTCC) -Wp,-MD,$(depfile
227
228 quiet_cmd_bootar = BOOTAR $@
229 cmd_bootar = $(BOOTAR) $(BOOTARFLAGS) $@
230
231 $(obj-libfdt): $(obj)/%.o: $(srctree)/scripts/
232 $(call if_changed_dep,bootcc)
233 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))
234 $(Q)mkdir -p $(dir $@)
235 $(call if_changed_dep,bootcc)
236 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))
237 $(Q)mkdir -p $(dir $@)
238 $(call if_changed_dep,bootas)
239
240 $(obj)/wrapper.a: $(obj-wlib) FORCE
241 $(call if_changed,bootar)
242
243 hostprogs := addnote hack-coff mktree
244
245 targets += $(patsubst $(obj)/%,%,$(obj
246 extra-y := $(obj)/wrapper.a $(obj-plat
247 $(obj)/zImage.lds $(obj)/zI
248
249 dtstree := $(src)/dts
250
251 wrapper := $(src)/wrapper
252 wrapperbits := $(extra-y) $(addprefix $(ob
253 $(wrapper) FORCE
254
255 #############
256 # Bits for building various flavours of zImage
257
258 ifneq ($(CROSS32_COMPILE),)
259 CROSSWRAP := -C "$(CROSS32_COMPILE)"
260 else
261 ifneq ($(CROSS_COMPILE),)
262 CROSSWRAP := -C "$(CROSS_COMPILE)"
263 endif
264 endif
265
266 compressor-$(CONFIG_KERNEL_GZIP) := gz
267 compressor-$(CONFIG_KERNEL_XZ) := xz
268 compressor-$(CONFIG_KERNEL_LZMA) := lzma
269 compressor-$(CONFIG_KERNEL_LZO) := lzo
270
271 # args (to if_changed): 1 = (this rule), 2 = p
272 quiet_cmd_wrap = WRAP $@
273 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -Z
274 $(CROSSWRAP) $(if $3, -s $3)$(
275 vmlinux
276
277 image-$(CONFIG_PPC_PSERIES) += zIm
278 image-$(CONFIG_PPC_POWERNV) += zIm
279 image-$(CONFIG_PPC_MAPLE) += zIm
280 image-$(CONFIG_PPC_IBM_CELL_BLADE) += zIm
281 image-$(CONFIG_PPC_PS3) += dtb
282 image-$(CONFIG_PPC_CHRP) += zIm
283 image-$(CONFIG_PPC_EFIKA) += zIm
284 image-$(CONFIG_PPC_PMAC) += zIm
285 image-$(CONFIG_PPC_HOLLY) += dtb
286 image-$(CONFIG_DEFAULT_UIMAGE) += uIm
287 image-$(CONFIG_EPAPR_BOOT) += zIm
288
289 #
290 # Targets which embed a device tree blob
291 #
292 # Theses are default targets to build images w
293 # They are only required on boards which do no
294 # Boards with newish u-boot firmware can use t
295 #
296
297 # Board ports in arch/powerpc/platform/44x/Kco
298 image-$(CONFIG_EBONY) += tre
299 image-$(CONFIG_BAMBOO) += tre
300 image-$(CONFIG_SAM440EP) += cuI
301 image-$(CONFIG_SEQUOIA) += cuI
302 image-$(CONFIG_RAINIER) += cuI
303 image-$(CONFIG_TAISHAN) += cuI
304 image-$(CONFIG_KATMAI) += cuI
305 image-$(CONFIG_WARP) += cuI
306 image-$(CONFIG_YOSEMITE) += cuI
307 image-$(CONFIG_ISS4xx) += tre
308 tre
309 image-$(CONFIG_CURRITUCK)
310 image-$(CONFIG_AKEBONO) += tre
311
312 # Board ports in arch/powerpc/platform/8xx/Kco
313 image-$(CONFIG_MPC86XADS) += cuI
314 image-$(CONFIG_MPC885ADS) += cuI
315 image-$(CONFIG_PPC_EP88XC) += dtb
316 image-$(CONFIG_PPC_ADDER875) += cuI
317 dtb
318
319 # Board ports in arch/powerpc/platform/52xx/Kc
320 image-$(CONFIG_PPC_LITE5200) += cuI
321 image-$(CONFIG_PPC_LITE5200) += cuI
322 image-$(CONFIG_PPC_MEDIA5200) += cuI
323
324 # Board ports in arch/powerpc/platform/82xx/Kc
325 image-$(CONFIG_EP8248E) += dtb
326
327 # Board ports in arch/powerpc/platform/83xx/Kc
328 image-$(CONFIG_MPC832x_RDB) += cuI
329 image-$(CONFIG_MPC834x_ITX) += cuI
330 cuI
331 image-$(CONFIG_ASP834x) += dtb
332
333 # Board ports in arch/powerpc/platform/85xx/Kc
334 image-$(CONFIG_MPC85xx_MDS) += cuI
335 image-$(CONFIG_MPC85xx_DS) += cuI
336 cuI
337 image-$(CONFIG_TQM8540) += cuI
338 image-$(CONFIG_TQM8541) += cuI
339 image-$(CONFIG_TQM8548) += cuI
340 image-$(CONFIG_TQM8555) += cuI
341 image-$(CONFIG_TQM8560) += cuI
342 image-$(CONFIG_KSI8560) += cuI
343
344 # Board ports in arch/powerpc/platform/86xx/Kc
345 image-$(CONFIG_MVME7100) += dtb
346
347 # Board ports in arch/powerpc/platform/embedde
348 image-$(CONFIG_STORCENTER) += cuI
349 image-$(CONFIG_GAMECUBE) += dtb
350 image-$(CONFIG_WII) += dtb
351 image-$(CONFIG_MVME5100) += dtb
352
353 # Board port in arch/powerpc/platform/amigaone
354 image-$(CONFIG_AMIGAONE) += cuI
355
356 image-$(CONFIG_PPC_MICROWATT) += dtb
357
358 # For 32-bit powermacs, build the COFF and mib
359 # as well as the ELF images.
360 ifdef CONFIG_PPC32
361 image-$(CONFIG_PPC_PMAC) += zImage.coff
362 endif
363
364 # Allow extra targets to be added to the defco
365 image-y += $(CONFIG_EXTRA_TARGETS)
366
367 initrd- := $(patsubst zImage%, zImage.initrd%
368 initrd-y := $(patsubst zImage%, zImage.initrd%
369 $(patsubst dtbImage%, dtbImage
370 $(patsubst simpleImage%, simpl
371 $(patsubst treeImage%, treeIma
372 initrd-y := $(filter-out $(image-y), $(initrd-
373 targets += $(image-y) $(initrd-y)
374 targets += $(foreach x, dtbImage uImage cuImag
375 $(patsubst $(x).%, dts/%.dtb,
376 targets += $(foreach x, dtbImage uImage cuImag
377 $(patsubst $(x).%, dts/fsl/%.d
378
379 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramd
380
381 # Don't put the ramdisk on the pattern rule; w
382 # the pattern rule with less dependencies that
383 # hard dependency listed).
384 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
385 $(call if_changed,wrap,$*,,,$(obj)/ram
386
387 $(addprefix $(obj)/, $(sort $(filter zImage.%,
388 $(call if_changed,wrap,$(subst $(obj)/
389
390 # dtbImage% - a dtbImage is a zImage with an e
391 $(obj)/dtbImage.initrd.%: vmlinux $(wrapperbit
392 $(call if_changed,wrap,$*,,$(obj)/dts/
393
394 $(obj)/dtbImage.%: vmlinux $(wrapperbits) $(ob
395 $(call if_changed,wrap,$*,,$(obj)/dts/
396
397 # This cannot be in the root of $(src) as the
398 # prefix
399 $(obj)/vmlinux.strip: vmlinux
400 $(STRIP) -s -R .comment $< -o $@
401
402 $(obj)/uImage: vmlinux $(wrapperbits) FORCE
403 $(call if_changed,wrap,uboot)
404
405 $(obj)/uImage.initrd.%: vmlinux $(obj)/dts/%.d
406 $(call if_changed,wrap,uboot-$*,,$(obj
407
408 $(obj)/uImage.%: vmlinux $(obj)/dts/%.dtb $(wr
409 $(call if_changed,wrap,uboot-$*,,$(obj
410
411 $(obj)/cuImage.initrd.%: vmlinux $(obj)/dts/%.
412 $(call if_changed,wrap,cuboot-$*,,$(ob
413
414 $(obj)/cuImage.%: vmlinux $(obj)/dts/%.dtb $(w
415 $(call if_changed,wrap,cuboot-$*,,$(ob
416
417 $(obj)/simpleImage.initrd.%: vmlinux $(obj)/dt
418 $(call if_changed,wrap,simpleboot-$*,,
419
420 $(obj)/simpleImage.%: vmlinux $(obj)/dts/%.dtb
421 $(call if_changed,wrap,simpleboot-$*,,
422
423 $(obj)/treeImage.initrd.%: vmlinux $(obj)/dts/
424 $(call if_changed,wrap,treeboot-$*,,$(
425
426 $(obj)/treeImage.%: vmlinux $(obj)/dts/%.dtb $
427 $(call if_changed,wrap,treeboot-$*,,$(
428
429 # Needed for the above targets to work with dt
430 $(obj)/dts/%.dtb: $(obj)/dts/fsl/%.dtb
431 @cp $< $@
432
433 # If there isn't a platform selected then just
434 ifeq (,$(image-y))
435 image-y := vmlinux.strip
436 endif
437
438 $(obj)/zImage: $(addprefix $(obj)/, $
439 $(Q)rm -f $@; ln $< $@
440 $(obj)/zImage.initrd: $(addprefix $(obj)/, $
441 $(Q)rm -f $@; ln $< $@
442
443 # anything not in $(targets)
444 clean-files += $(image-) $(initrd-) cuImage.*
445 zImage zImage.initrd zImage.chrp zImag
446 zImage.miboot zImage.pmac zImage.pseri
447 zImage.maple simpleImage.* otheros.bld
448
449 # clean up files cached by wrapper
450 clean-kernel-base := vmlinux.strip vmlinux.bin
451 clean-kernel := $(addsuffix .gz,$(clean-kernel
452 clean-kernel += $(addsuffix .xz,$(clean-kernel
453 # clean-files are relative to $(obj).
454 clean-files += $(addprefix ../../../, $(clean-
455
456 WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
457 WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
458 WRAPPER_BINDIR := /usr/sbin
459 INSTALL := install
460
461 extra-installed := $(patsubst $(obj)/%
462 hostprogs-installed := $(patsubst %, $(DES
463 wrapper-installed := $(DESTDIR)$(WRAPPER
464 dts-installed := $(patsubst $(dtstre
465
466 all-installed := $(extra-installed)
467
468 quiet_cmd_mkdir = MKDIR $(patsubst
469 cmd_mkdir = mkdir -p $@
470
471 quiet_cmd_install = INSTALL $(patsubst
472 cmd_install = $(INSTALL) -m0644
473
474 quiet_cmd_install_dts = INSTALL $(patsubst
475 cmd_install_dts = $(INSTALL) -m0644
476
477 quiet_cmd_install_exe = INSTALL $(patsubst
478 cmd_install_exe = $(INSTALL) -m0755
479
480 quiet_cmd_install_wrapper = INSTALL $(patsubst
481 cmd_install_wrapper = $(INSTALL) -m0755
482 sed -i $@ -e '
483 -e '
484
485
486 $(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPE
487 $(call cmd,mkdir)
488
489 $(extra-installed) : $(DESTDIR)$(WRAPPER_
490 $(call cmd,install)
491
492 $(hostprogs-installed) : $(DESTDIR)$(WRAPPER_
493 $(call cmd,install_exe)
494
495 $(dts-installed) : $(DESTDIR)$(WRAPPER_
496 $(call cmd,install_dts)
497
498 $(wrapper-installed): $(DESTDIR)$(WRAPPER_BIND
499 $(call cmd,install_wrapper)
500
501 $(obj)/bootwrapper_install: $(all-installed)
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