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