jcs.org
"Das U-Boot" Source Tree
1# SPDX-License-Identifier: GPL-2.0+
2#
3# (C) Copyright 2000-2011
4# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5#
6# (C) Copyright 2011
7# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
8#
9# (C) Copyright 2011
10# Texas Instruments Incorporated - https://www.ti.com/
11# Aneesh V <aneesh@ti.com>
12# Based on top-level Makefile.
13#
14
15src := $(obj)
16
17# Create output directory if not already present
18_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
19
20include $(srctree)/scripts/Kbuild.include
21
22-include include/config/auto.conf
23
24# This file contains 0, or 2 lines
25# It is empty for U-Boot proper (where $(obj) is empty)
26# For any xPL build it contains CONFIG_XPL_BUILD=y
27# - for SPL builds it also contains CONFIG_SPL_BUILD=y
28# - for TPL builds it also contains CONFIG_TPL_BUILD=y
29# - for VPL builds it also contains CONFIG_VPL_BUILD=y
30-include $(obj)/include/autoconf.mk
31
32UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE)
33
34KBUILD_CPPFLAGS += -DCONFIG_XPL_BUILD
35ifeq ($(CONFIG_SPL_BUILD),y)
36KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
37endif
38ifeq ($(CONFIG_TPL_BUILD),y)
39KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
40else
41ifeq ($(CONFIG_VPL_BUILD),y)
42KBUILD_CPPFLAGS += -DCONFIG_VPL_BUILD
43endif
44endif
45
46ifeq ($(CONFIG_VPL_BUILD),y)
47SPL_BIN := u-boot-vpl
48SPL_NAME := vpl
49else
50ifeq ($(CONFIG_TPL_BUILD),y)
51SPL_BIN := u-boot-tpl
52SPL_NAME := tpl
53else
54SPL_BIN := u-boot-spl
55SPL_NAME := spl
56endif
57endif
58
59export SPL_NAME
60
61ifdef CONFIG_XPL_BUILD
62XPL_ := SPL_
63ifeq ($(CONFIG_VPL_BUILD),y)
64PHASE_ := VPL_
65else
66ifeq ($(CONFIG_TPL_BUILD),y)
67PHASE_ := TPL_
68else
69PHASE_ := SPL_
70endif
71endif
72else
73XPL_ :=
74PHASE_ :=
75endif
76
77ifeq ($(obj)$(CONFIG_SUPPORT_SPL),spl)
78$(error You cannot build SPL without enabling CONFIG_SUPPORT_SPL)
79endif
80ifeq ($(obj)$(CONFIG_SUPPORT_TPL),tpl)
81$(error You cannot build TPL without enabling CONFIG_SUPPORT_TPL)
82endif
83ifeq ($(obj)$(CONFIG_SUPPORT_VPL),vpl)
84$(error You cannot build VPL without enabling CONFIG_SUPPORT_VPL)
85endif
86
87include $(srctree)/config.mk
88include $(srctree)/arch/$(ARCH)/Makefile
89
90include $(srctree)/scripts/Makefile.lib
91
92# Enable garbage collection of un-used sections for SPL
93KBUILD_CFLAGS += -ffunction-sections -fdata-sections
94LDFLAGS_FINAL += --gc-sections
95
96ifeq ($(CONFIG_$(PHASE_)STACKPROTECTOR),y)
97KBUILD_CFLAGS += -fstack-protector-strong
98else
99KBUILD_CFLAGS += -fno-stack-protector
100endif
101
102# FIX ME
103cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
104 $(NOSTDINC_FLAGS)
105c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
106
107HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
108
109libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/)
110libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
111
112ifeq ($(CONFIG_TPL_BUILD),y)
113libs-$(CONFIG_TPL_FRAMEWORK) += common/spl/
114else
115libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
116endif
117libs-y += common/init/
118
119# Special handling for a few options which support SPL/TPL/VPL
120libs-$(CONFIG_$(PHASE_)LIBCOMMON_SUPPORT) += boot/ common/ cmd/ env/
121libs-$(CONFIG_$(PHASE_)LIBGENERIC_SUPPORT) += lib/
122ifdef CONFIG_SPL_FRAMEWORK
123libs-$(CONFIG_PARTITIONS) += disk/
124endif
125
126libs-y += drivers/
127libs-$(CONFIG_SPL_MEMORY) += drivers/memory/
128libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/dwc3/
129libs-$(CONFIG_SPL_USB_GADGET) += drivers/usb/cdns3/
130libs-y += dts/
131libs-y += fs/
132libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
133libs-$(CONFIG_SPL_NET) += net/
134libs-$(CONFIG_$(PHASE_)UNIT_TEST) += test/
135
136head-y := $(addprefix $(obj)/,$(head-y))
137libs-y := $(addprefix $(obj)/,$(libs-y))
138u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
139
140libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
141
142# Add GCC lib
143ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
144PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
145PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
146endif
147
148u-boot-spl-init := $(head-y)
149u-boot-spl-main := $(libs-y)
150ifdef CONFIG_$(PHASE_)OF_PLATDATA
151platdata-hdr := include/generated/dt-structs-gen.h include/generated/dt-decl.h
152platdata-inst := $(obj)/dts/dt-uclass.o $(obj)/dts/dt-device.o
153platdata-noinst := $(obj)/dts/dt-plat.o
154
155ifdef CONFIG_$(PHASE_)OF_PLATDATA_INST
156u-boot-spl-platdata := $(platdata-inst)
157u-boot-spl-old-platdata := $(platdata-noinst)
158else
159u-boot-spl-platdata := $(platdata-noinst)
160u-boot-spl-old-platdata := $(platdata-inst)
161endif
162
163# Files we need to generate
164u-boot-spl-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-platdata))
165
166# Files we won't generate and should remove
167u-boot-spl-old-platdata_c := $(patsubst %.o,%.c,$(u-boot-spl-old-platdata))
168endif # OF_PLATDATA
169
170# Linker Script
171# First test whether there's a linker-script for the specific stage defined...
172ifneq ($(CONFIG_$(PHASE_)LDSCRIPT),)
173# need to strip off double quotes
174LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_$(PHASE_)LDSCRIPT:"%"=%))
175else
176# ...then fall back to the generic SPL linker-script
177ifneq ($(CONFIG_SPL_LDSCRIPT),)
178# need to strip off double quotes
179LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
180endif
181endif
182
183ifeq ($(wildcard $(LDSCRIPT)),)
184 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
185endif
186ifeq ($(wildcard $(LDSCRIPT)),)
187 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
188endif
189ifeq ($(wildcard $(LDSCRIPT)),)
190 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
191endif
192ifeq ($(wildcard $(LDSCRIPT)),)
193$(error could not find linker script)
194endif
195
196# Special flags for CPP when processing the linker script.
197# Pass the version down so we can handle backwards compatibility
198# on the fly.
199LDPPFLAGS += \
200 -include $(srctree)/include/u-boot/u-boot.lds.h \
201 -include $(objtree)/include/config.h \
202 -DCPUDIR=$(CPUDIR) \
203 $(shell $(LD) --version | \
204 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
205
206# Turn various CONFIG symbols into IMAGE symbols for easy reuse of
207# the scripts between SPL, TPL and VPL.
208ifneq ($(CONFIG_$(PHASE_)MAX_SIZE),0x0)
209LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_$(PHASE_)MAX_SIZE)
210endif
211ifneq ($(CONFIG_$(PHASE_)TEXT_BASE),)
212LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_$(PHASE_)TEXT_BASE)
213endif
214
215MKIMAGEOUTPUT ?= /dev/null
216
217quiet_cmd_mkimage = MKIMAGE $@
218cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
219 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
220
221quiet_cmd_mkfitimage = MKIMAGE $@
222cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(SPL_ITS) -E $@ \
223 $(if $(KBUILD_VERBOSE:1=), MKIMAGEOUTPUT)
224
225MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
226
227MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
228
229MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
230 $(call if_changed,mkimage)
231
232ifeq ($(CONFIG_SYS_SOC),"at91")
233MKIMAGEFLAGS_boot.bin = -T atmelimage
234
235ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
236MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
237
238$(obj)/boot.bin: $(obj)/../tools/atmel_pmecc_params
239endif
240
241$(obj)/boot.bin: $(obj)/u-boot-spl.bin FORCE
242 $(call if_changed,mkimage)
243else
244ifdef CONFIG_ARCH_ZYNQ
245MKIMAGEFLAGS_boot.bin = -T zynqimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE)
246endif
247ifdef CONFIG_ARCH_ZYNQMP
248ifneq ($(CONFIG_PMUFW_INIT_FILE),"")
249spl/boot.bin: zynqmp-check-pmufw
250zynqmp-check-pmufw: FORCE
251 ( cd $(srctree) && test -r $(CONFIG_PMUFW_INIT_FILE) ) \
252 || ( echo "Cannot read $(CONFIG_PMUFW_INIT_FILE)" && false )
253endif
254MKIMAGEFLAGS_boot.bin = -T zynqmpimage -R $(srctree)/$(CONFIG_BOOT_INIT_FILE) \
255 -n "$(shell cd $(srctree); readlink -f $(CONFIG_PMUFW_INIT_FILE))"
256endif
257
258$(obj)/$(SPL_BIN)-align.bin: $(obj)/$(SPL_BIN).bin
259 @dd if=$< of=$@ conv=block,sync bs=4 2>/dev/null;
260
261spl/boot.bin: $(obj)/$(SPL_BIN)-align.bin FORCE
262 $(call if_changed,mkimage)
263endif
264
265INPUTS-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).sym
266
267ifneq ($(CONFIG_ARCH_EXYNOS)$(CONFIG_ARCH_S5PC1XX),)
268INPUTS-y += $(obj)/$(BOARD)-spl.bin
269endif
270
271ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
272INPUTS-y += $(obj)/$(SPL_BIN).sfp
273endif
274
275INPUTS-$(CONFIG_TARGET_SOCFPGA_SOC64) += $(obj)/u-boot-spl-dtb.hex
276
277ifdef CONFIG_ARCH_SUNXI
278INPUTS-y += $(obj)/sunxi-spl.bin
279
280ifdef CONFIG_NAND_SUNXI
281INPUTS-y += $(obj)/sunxi-spl-with-ecc.bin
282endif
283endif
284
285ifeq ($(CONFIG_SYS_SOC),"at91")
286INPUTS-y += $(obj)/boot.bin
287endif
288
289ifndef CONFIG_VPL_BUILD
290ifdef CONFIG_TPL_BUILD
291INPUTS-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-tpl.bin \
292 $(obj)/u-boot-x86-reset16-tpl.bin
293else
294INPUTS-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-start16-spl.bin \
295 $(obj)/u-boot-x86-reset16-spl.bin
296endif
297endif
298
299INPUTS-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
300INPUTS-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
301
302INPUTS-$(CONFIG_ARCH_MEDIATEK) += $(obj)/u-boot-spl-mtk.bin
303
304all: $(INPUTS-y)
305
306quiet_cmd_cat = CAT $@
307cmd_cat = cat $(filter-out $(PHONY), $^) > $@
308
309quiet_cmd_copy = COPY $@
310 cmd_copy = cp $< $@
311
312ifneq ($(CONFIG_SPL_MULTI_DTB_FIT),y)
313FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).dtb
314else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_LZO),y)
315FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.lzo
316else ifeq ($(CONFIG_SPL_MULTI_DTB_FIT_GZIP),y)
317FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit.gz
318else
319FINAL_DTB_CONTAINER = $(obj)/$(SPL_BIN).multidtb.fit
320endif
321
322# Build the .dtb file if needed
323# - OF_REAL is enabled
324# - we have either OF_SEPARATE or OF_HOSTFILE
325build_dtb :=
326ifneq ($(CONFIG_$(PHASE_)OF_REAL),)
327ifneq ($(CONFIG_OF_SEPARATE)$(CONFIG_SANDBOX),)
328build_dtb := y
329endif
330endif
331
332ifneq ($(build_dtb),)
333$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
334 $(if $(CONFIG_$(PHASE_)SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
335 $(FINAL_DTB_CONTAINER) FORCE
336 $(call if_changed,cat)
337
338$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
339 $(call if_changed,copy)
340else
341$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
342 $(call if_changed,copy)
343endif
344
345# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
346$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
347 @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
348 dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
349
350$(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
351 $(call if_changed,copy)
352
353pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
354
355DTOC_ARGS := $(pythonpath) $(srctree)/tools/dtoc/dtoc \
356 -d $(obj)/$(SPL_BIN).dtb -p $(SPL_NAME)
357
358ifneq ($(CONFIG_$(PHASE_)OF_PLATDATA_INST),)
359DTOC_ARGS += -i
360endif
361
362quiet_cmd_dtoc = DTOC $@
363cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
364
365quiet_cmd_plat = PLAT $@
366cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
367
368$(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c $(platdata-hdr)
369 $(call if_changed,plat)
370
371# Don't use dts_dir here, since it forces running this expensive rule every time
372$(platdata-hdr) $(u-boot-spl-platdata_c) &: $(obj)/$(SPL_BIN).dtb FORCE
373 @[ -d $(obj)/dts ] || mkdir -p $(obj)/dts
374 @# Remove old files since which ones we generate depends on the setting
375 @# of OF_PLATDATA_INST and this might change between builds. Leaving old
376 @# ones around is confusing and it is possible that switching the
377 @# setting again will use the old one instead of regenerating it.
378 @rm -f $(u-boot-spl-old-platdata_c) $(u-boot-spl-platdata_c) \
379 $(u-boot-spl-old-platdata)
380 $(call if_changed,dtoc)
381
382ifneq ($(CONFIG_ARCH_EXYNOS)$(CONFIG_ARCH_S5PC1XX),)
383ifeq ($(CONFIG_EXYNOS5420),y)
384VAR_SIZE_PARAM = --vs
385else
386VAR_SIZE_PARAM =
387endif
388$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
389 $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
390 $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
391 $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
392endif
393
394$(obj)/u-boot-spl.ldr: $(obj)/u-boot-spl
395 $(CREATE_LDR_ENV)
396 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS)
397 $(BOARD_SIZE_CHECK)
398
399quiet_cmd_objcopy = OBJCOPY $@
400cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
401
402OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
403 $(if $(CONFIG_$(PHASE_)X86_16BIT_INIT),-R .start16 -R .resetvec)
404
405$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
406 $(call if_changed,objcopy)
407
408OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
409$(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
410 $(call if_changed,objcopy)
411
412OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
413$(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
414 $(call if_changed,objcopy)
415
416OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
417$(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
418 $(call if_changed,objcopy)
419
420OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
421$(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
422 $(call if_changed,objcopy)
423
424LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
425
426# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
427LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
428
429LDFLAGS_$(SPL_BIN) += --build-id=none
430
431# Pick the best match (e.g. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
432ifneq ($(CONFIG_$(PHASE_)TEXT_BASE),)
433LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(PHASE_)TEXT_BASE)
434endif
435
436ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
437MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
438else
439MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
440endif
441$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
442 $(call if_changed,mkimage)
443
444MKIMAGEFLAGS_sunxi-spl.bin = \
445 -A $(ARCH) \
446 -T $(CONFIG_SPL_IMAGE_TYPE) \
447 -a $(CONFIG_SPL_TEXT_BASE) \
448 -n $(CONFIG_DEFAULT_DEVICE_TREE)
449
450OBJCOPYFLAGS_u-boot-spl-dtb.hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
451
452$(obj)/u-boot-spl-dtb.hex: $(obj)/u-boot-spl-dtb.bin FORCE
453 $(call if_changed,objcopy)
454
455$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
456 $(call if_changed,mkimage)
457
458quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
459cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
460 -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
461 -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
462 -o $(CONFIG_SYS_NAND_OOBSIZE) \
463 -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
464 -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
465 -s -b $< $@
466$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
467 $(call if_changed,sunxi_spl_image_builder)
468
469
470# MediaTek's specific SPL build
471MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
472 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
473 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
474
475$(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
476 $(call if_changed,mkimage)
477
478quiet_cmd_sym ?= SYM $@
479 cmd_sym ?= $(OBJDUMP) -t $< > $@
480$(obj)/$(SPL_BIN).sym: $(obj)/$(SPL_BIN) FORCE
481 $(call if_changed,sym)
482
483# Generate linker list symbols references to force compiler to not optimize
484# them away when compiling with LTO
485ifdef CONFIG_LTO
486u-boot-spl-keep-syms-lto := $(obj)/keep-syms-lto.o
487u-boot-spl-keep-syms-lto_c := \
488 $(patsubst $(obj)/%.o,$(obj)/%.c,$(u-boot-spl-keep-syms-lto))
489
490quiet_cmd_keep_syms_lto = KSL $@
491 cmd_keep_syms_lto = \
492 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
493
494quiet_cmd_keep_syms_lto_cc = KSLCC $@
495 cmd_keep_syms_lto_cc = \
496 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
497
498$(u-boot-spl-keep-syms-lto_c): $(u-boot-spl-main) $(u-boot-spl-platdata)
499 $(call if_changed,keep_syms_lto)
500$(u-boot-spl-keep-syms-lto): $(u-boot-spl-keep-syms-lto_c)
501 $(call if_changed,keep_syms_lto_cc)
502else
503u-boot-spl-keep-syms-lto :=
504endif
505
506# Rule to link u-boot-spl
507# May be overridden by arch/$(ARCH)/config.mk
508ifeq ($(LTO_ENABLE),y)
509quiet_cmd_u-boot-spl ?= LTO $@
510 cmd_u-boot-spl ?= \
511 ( \
512 cd $(obj) && \
513 touch $(patsubst $(obj)/%,%,$(u-boot-spl-main)) && \
514 $(CC) -nostdlib -nostartfiles $(LTO_FINAL_LDFLAGS) $(c_flags) \
515 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_$(@F):%=-Wl,%) \
516 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
517 -Wl,--whole-archive \
518 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
519 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
520 $(patsubst $(obj)/%,%,$(u-boot-spl-keep-syms-lto)) \
521 $(PLATFORM_LIBS) \
522 -Wl,--no-whole-archive \
523 -Wl,-Map,$(SPL_BIN).map -o $(SPL_BIN) \
524 )
525else
526quiet_cmd_u-boot-spl ?= LD $@
527 cmd_u-boot-spl ?= \
528 ( \
529 cd $(obj) && \
530 touch $(patsubst $(obj)/%,%,$(u-boot-spl-main)) && \
531 $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F)) \
532 $(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
533 --whole-archive \
534 $(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
535 $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
536 --no-whole-archive \
537 $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN) \
538 )
539endif
540
541$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
542 $(u-boot-spl-main) $(u-boot-spl-keep-syms-lto) \
543 $(obj)/u-boot-spl.lds FORCE
544 $(call if_changed,u-boot-spl)
545
546$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
547
548PHONY += $(u-boot-spl-dirs)
549$(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
550 $(Q)$(MAKE) $(build)=$@
551
552PHONY += prepare
553prepare:
554 $(Q)$(MAKE) $(build)=$(obj)/.
555
556quiet_cmd_cpp_lds = LDS $@
557cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
558 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
559
560$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
561 $(call if_changed_dep,cpp_lds)
562
563# read all saved command lines
564
565targets := $(wildcard $(sort $(targets)))
566cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
567
568ifneq ($(cmd_files),)
569 $(cmd_files): ; # Do not try to update included dependency files
570 include $(cmd_files)
571endif
572
573PHONY += FORCE
574FORCE:
575
576$(obj)/dts/dt-$(SPL_NAME).dtb: dts/dt.dtb
577 $(Q)$(MAKE) $(build)=$(obj)/dts spl_dtbs
578
579ifeq ($(CONFIG_OF_UPSTREAM),y)
580ifeq ($(CONFIG_ARM64),y)
581dt_dir := dts/upstream/src/arm64
582else
583dt_dir := dts/upstream/src/$(ARCH)
584endif
585else
586dt_dir := arch/$(ARCH)/dts
587endif
588
589# Declare the contents of the .PHONY variable as phony. We keep that
590# information in a variable so we can use it in if_changed and friends.
591.PHONY: $(PHONY)
592
593SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
594SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
595$(sort $(dir $(SHRUNK_ARCH_DTB))):
596 $(shell [ -d $@ ] || mkdir -p $@)
597
598.SECONDEXPANSION:
599$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, $(dt_dir)/%, $$@) $(dir $(SHRUNK_ARCH_DTB))
600 $(call if_changed,fdtgrep)
601
602targets += $(SPL_OF_LIST_TARGETS)
603
604MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
605 -n "Multi DTB fit image for $(SPL_BIN)" -E \
606 $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
607
608$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
609 $(call if_changed,mkimage)
610ifneq ($(SOURCE_DATE_EPOCH),)
611 touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
612 chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
613endif
614
615$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
616 @gzip -kf9 $< > $@
617
618$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
619 @lzop -f9 $< > $@
620
621ifdef CONFIG_ARCH_K3
622tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
623 $(call if_changed,mkfitimage)
624endif