LXR uboot/scripts/Makefile.spl

   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-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  96libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
  97else
  98libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/ env/
  99libs-$(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-$(CONFIG_SPL_NET_SUPPORT) += net/
 112libs-$(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:
 299#   - we are not using OF_PLATDATA
 300#   - we are using OF_CONTROL
 301#   - we have either OF_SEPARATE or OF_HOSTFILE
 302build_dtb :=
 303ifeq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA),)
 304ifneq ($(CONFIG_$(SPL_TPL_)OF_CONTROL),)
 305ifeq ($(CONFIG_OF_SEPARATE)$(CONFIG_OF_HOSTFILE),y)
 306build_dtb := y
 307endif
 308endif
 309endif
 310
 311ifneq ($(build_dtb),)
 312$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin \
 313                $(if $(CONFIG_SPL_SEPARATE_BSS),,$(obj)/$(SPL_BIN)-pad.bin) \
 314                $(FINAL_DTB_CONTAINER)  FORCE
 315        $(call if_changed,cat)
 316
 317$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
 318        $(call if_changed,copy)
 319else
 320$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
 321        $(call if_changed,copy)
 322endif
 323
 324# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
 325$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
 326        @bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
 327        dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
 328
 329$(obj)/$(SPL_BIN).dtb: $(obj)/dts/dt-$(SPL_NAME).dtb FORCE
 330        $(call if_changed,copy)
 331
 332pythonpath = PYTHONPATH=scripts/dtc/pylibfdt
 333
 334DTOC_ARGS := $(pythonpath) $(srctree)/tools/dtoc/dtoc \
 335        -d $(obj)/$(SPL_BIN).dtb -p $(SPL_NAME)
 336
 337ifneq ($(CONFIG_$(SPL_TPL_)OF_PLATDATA_INST),)
 338DTOC_ARGS += -i
 339endif
 340
 341quiet_cmd_dtoc = DTOC    $@
 342cmd_dtoc = $(DTOC_ARGS) -c $(obj)/dts -C include/generated all
 343
 344quiet_cmd_plat = PLAT    $@
 345cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@)
 346
 347$(obj)/dts/dt-%.o: $(obj)/dts/dt-%.c $(platdata-hdr)
 348        $(call if_changed,plat)
 349
 350# Don't use dts_dir here, since it forces running this expensive rule every time
 351$(platdata-hdr) $(u-boot-spl-platdata_c) &: $(obj)/$(SPL_BIN).dtb
 352        @[ -d $(obj)/dts ] || mkdir -p $(obj)/dts
 353        @# Remove old files since which ones we generate depends on the setting
 354        @# of OF_PLATDATA_INST and this might change between builds. Leaving old
 355        @# ones around is confusing and it is possible that switching the
 356        @# setting again will use the old one instead of regenerating it.
 357        @rm -f $(u-boot-spl-all-platdata_c) $(u-boot-spl-all-platdata)
 358        $(call if_changed,dtoc)
 359
 360ifdef CONFIG_SAMSUNG
 361ifdef CONFIG_VAR_SIZE_SPL
 362VAR_SIZE_PARAM = --vs
 363else
 364VAR_SIZE_PARAM =
 365endif
 366$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
 367        $(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
 368        $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
 369        $(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
 370endif
 371
 372quiet_cmd_objcopy = OBJCOPY $@
 373cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 374
 375OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
 376                $(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
 377
 378$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
 379        $(call if_changed,objcopy)
 380
 381OBJCOPYFLAGS_u-boot-x86-start16-spl.bin := -O binary -j .start16
 382$(obj)/u-boot-x86-start16-spl.bin: $(obj)/u-boot-spl FORCE
 383        $(call if_changed,objcopy)
 384
 385OBJCOPYFLAGS_u-boot-x86-start16-tpl.bin := -O binary -j .start16
 386$(obj)/u-boot-x86-start16-tpl.bin: $(obj)/u-boot-tpl FORCE
 387        $(call if_changed,objcopy)
 388
 389OBJCOPYFLAGS_u-boot-x86-reset16-spl.bin := -O binary -j .resetvec
 390$(obj)/u-boot-x86-reset16-spl.bin: $(obj)/u-boot-spl FORCE
 391        $(call if_changed,objcopy)
 392
 393OBJCOPYFLAGS_u-boot-x86-reset16-tpl.bin := -O binary -j .resetvec
 394$(obj)/u-boot-x86-reset16-tpl.bin: $(obj)/u-boot-tpl FORCE
 395        $(call if_changed,objcopy)
 396
 397LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
 398
 399# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 400LDFLAGS_$(SPL_BIN) += $(call ld-option, --no-dynamic-linker)
 401
 402LDFLAGS_$(SPL_BIN) += --build-id=none
 403
 404# Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL)
 405ifneq ($(CONFIG_$(SPL_TPL_)TEXT_BASE),)
 406LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_$(SPL_TPL_)TEXT_BASE)
 407endif
 408
 409ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
 410MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage_v1
 411else
 412MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
 413endif
 414$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 415        $(call if_changed,mkimage)
 416
 417MKIMAGEFLAGS_sunxi-spl.bin = -T sunxi_egon \
 418        -n $(CONFIG_DEFAULT_DEVICE_TREE)
 419
 420OBJCOPYFLAGS_u-boot-spl-dtb.hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
 421
 422$(obj)/u-boot-spl-dtb.hex: $(obj)/u-boot-spl-dtb.bin FORCE
 423        $(call if_changed,objcopy)
 424
 425$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
 426        $(call if_changed,mkimage)
 427
 428quiet_cmd_sunxi_spl_image_builder = SUNXI_SPL_IMAGE_BUILDER $@
 429cmd_sunxi_spl_image_builder = $(objtree)/tools/sunxi-spl-image-builder \
 430                                -c $(CONFIG_NAND_SUNXI_SPL_ECC_STRENGTH)/$(CONFIG_NAND_SUNXI_SPL_ECC_SIZE) \
 431                                -p $(CONFIG_SYS_NAND_PAGE_SIZE) \
 432                                -o $(CONFIG_SYS_NAND_OOBSIZE) \
 433                                -u $(CONFIG_NAND_SUNXI_SPL_USABLE_PAGE_SIZE) \
 434                                -e $(CONFIG_SYS_NAND_BLOCK_SIZE) \
 435                                -s -b $< $@
 436$(obj)/sunxi-spl-with-ecc.bin: $(obj)/sunxi-spl.bin
 437        $(call if_changed,sunxi_spl_image_builder)
 438
 439
 440# MediaTek's specific SPL build
 441MKIMAGEFLAGS_u-boot-spl-mtk.bin = -T mtk_image \
 442        -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) \
 443        -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
 444
 445$(obj)/u-boot-spl-mtk.bin: $(obj)/u-boot-spl.bin FORCE
 446        $(call if_changed,mkimage)
 447
 448quiet_cmd_sym ?= SYM     $@
 449      cmd_sym ?= $(OBJDUMP) -t $< > $@
 450$(obj)/$(SPL_BIN).sym: $(obj)/$(SPL_BIN) FORCE
 451        $(call if_changed,sym)
 452
 453# Generate linker list symbols references to force compiler to not optimize
 454# them away when compiling with LTO
 455ifdef CONFIG_LTO
 456u-boot-spl-keep-syms-lto := $(obj)/keep-syms-lto.o
 457u-boot-spl-keep-syms-lto_c := \
 458        $(patsubst $(obj)/%.o,$(obj)/%.c,$(u-boot-spl-keep-syms-lto))
 459
 460quiet_cmd_keep_syms_lto = KSL     $@
 461      cmd_keep_syms_lto = \
 462        $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
 463
 464quiet_cmd_keep_syms_lto_cc = KSLCC   $@
 465      cmd_keep_syms_lto_cc = \
 466        $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
 467
 468$(u-boot-spl-keep-syms-lto_c): $(u-boot-spl-main) $(u-boot-spl-platdata)
 469        $(call if_changed,keep_syms_lto)
 470$(u-boot-spl-keep-syms-lto): $(u-boot-spl-keep-syms-lto_c)
 471        $(call if_changed,keep_syms_lto_cc)
 472else
 473u-boot-spl-keep-syms-lto :=
 474endif
 475
 476# Rule to link u-boot-spl
 477# May be overridden by arch/$(ARCH)/config.mk
 478ifdef CONFIG_LTO
 479quiet_cmd_u-boot-spl ?= LTO     $@
 480      cmd_u-boot-spl ?= \
 481        (                                                                       \
 482                cd $(obj) &&                                                    \
 483                $(CC) -nostdlib -nostartfiles $(LTO_FINAL_LDFLAGS) $(c_flags)   \
 484                $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_$(@F):%=-Wl,%)              \
 485                $(patsubst $(obj)/%,%,$(u-boot-spl-init))                       \
 486                -Wl,--whole-archive                                             \
 487                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))               \
 488                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata))           \
 489                        $(patsubst $(obj)/%,%,$(u-boot-spl-keep-syms-lto))      \
 490                        $(PLATFORM_LIBS)                                        \
 491                -Wl,--no-whole-archive                                          \
 492                -Wl,-Map,$(SPL_BIN).map -o $(SPL_BIN)                           \
 493        )
 494else
 495quiet_cmd_u-boot-spl ?= LD      $@
 496      cmd_u-boot-spl ?= \
 497        (                                                               \
 498                cd $(obj) &&                                            \
 499                $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_$(@F))                \
 500                $(patsubst $(obj)/%,%,$(u-boot-spl-init))               \
 501                --whole-archive                                         \
 502                        $(patsubst $(obj)/%,%,$(u-boot-spl-main))       \
 503                        $(patsubst $(obj)/%,%,$(u-boot-spl-platdata))   \
 504                --no-whole-archive                                      \
 505                $(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN)      \
 506        )
 507endif
 508
 509$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
 510                $(u-boot-spl-main) $(u-boot-spl-keep-syms-lto) \
 511                $(obj)/u-boot-spl.lds FORCE
 512        $(call if_changed,u-boot-spl)
 513
 514$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
 515
 516PHONY += $(u-boot-spl-dirs)
 517$(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare
 518        $(Q)$(MAKE) $(build)=$@
 519
 520PHONY += prepare
 521prepare:
 522        $(Q)$(MAKE) $(build)=$(obj)/.
 523
 524quiet_cmd_cpp_lds = LDS     $@
 525cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 526                -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
 527
 528$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
 529        $(call if_changed_dep,cpp_lds)
 530
 531# read all saved command lines
 532
 533targets := $(wildcard $(sort $(targets)))
 534cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 535
 536ifneq ($(cmd_files),)
 537  $(cmd_files): ;       # Do not try to update included dependency files
 538  include $(cmd_files)
 539endif
 540
 541PHONY += FORCE
 542FORCE:
 543
 544$(obj)/dts/dt-$(SPL_NAME).dtb: dts/dt.dtb
 545        $(Q)$(MAKE) $(build)=$(obj)/dts spl_dtbs
 546
 547PHONY += dts_dir
 548dts_dir:
 549        $(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
 550
 551# Declare the contents of the .PHONY variable as phony.  We keep that
 552# information in a variable so we can use it in if_changed and friends.
 553.PHONY: $(PHONY)
 554
 555SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
 556SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
 557.SECONDEXPANSION:
 558$(SHRUNK_ARCH_DTB): $$(patsubst $(obj)/dts/%, arch/$(ARCH)/dts/%, $$@) dts_dir
 559        $(call if_changed,fdtgrep)
 560
 561targets += $(SPL_OF_LIST_TARGETS)
 562
 563MKIMAGEFLAGS_$(SPL_BIN).multidtb.fit = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 564        -n "Multi DTB fit image for $(SPL_BIN)" -E \
 565        $(patsubst %,-b %,$(SHRUNK_ARCH_DTB))
 566
 567$(obj)/$(SPL_BIN).multidtb.fit: /dev/null $(SHRUNK_ARCH_DTB) FORCE
 568        $(call if_changed,mkimage)
 569ifneq ($(SOURCE_DATE_EPOCH),)
 570        touch -d @$(SOURCE_DATE_EPOCH) $(obj)/$(SPL_BIN).multidtb.fit
 571        chmod 0600 $(obj)/$(SPL_BIN).multidtb.fit
 572endif
 573
 574$(obj)/$(SPL_BIN).multidtb.fit.gz: $(obj)/$(SPL_BIN).multidtb.fit
 575        @gzip -kf9 $< > $@
 576
 577$(obj)/$(SPL_BIN).multidtb.fit.lzo: $(obj)/$(SPL_BIN).multidtb.fit
 578        @lzop -f9 $< > $@
 579
 580ifdef CONFIG_ARCH_K3
 581tispl.bin: $(obj)/u-boot-spl-nodtb.bin $(SHRUNK_ARCH_DTB) $(SPL_ITS) FORCE
 582        $(call if_changed,mkfitimage)
 583endif
 584