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