1# 2# Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved. 3# 4# SPDX-License-Identifier: BSD-3-Clause 5# 6 7# Report an error if the eval make function is not available. 8$(eval eval_available := T) 9ifneq (${eval_available},T) 10 $(error This makefile only works with a Make program that supports $$(eval)) 11endif 12 13# Some utility macros for manipulating awkward (whitespace) characters. 14blank := 15space :=${blank} ${blank} 16 17# A user defined function to recursively search for a filename below a directory 18# $1 is the directory root of the recursive search (blank for current directory). 19# $2 is the file name to search for. 20define rwildcard 21$(strip $(foreach d,$(wildcard ${1}*),$(call rwildcard,${d}/,${2}) $(filter $(subst *,%,%${2}),${d}))) 22endef 23 24# This table is used in converting lower case to upper case. 25uppercase_table:=a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z 26 27# Internal macro used for converting lower case to upper case. 28# $(1) = upper case table 29# $(2) = String to convert 30define uppercase_internal 31$(if $(1),$$(subst $(firstword $(1)),$(call uppercase_internal,$(wordlist 2,$(words $(1)),$(1)),$(2))),$(2)) 32endef 33 34# A macro for converting a string to upper case 35# $(1) = String to convert 36define uppercase 37$(eval uppercase_result:=$(call uppercase_internal,$(uppercase_table),$(1)))$(uppercase_result) 38endef 39 40# Convenience function for adding build definitions 41# $(eval $(call add_define,FOO)) will have: 42# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 43define add_define 44 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 45endef 46 47# Convenience function for adding build definitions 48# $(eval $(call add_define_val,FOO,BAR)) will have: 49# -DFOO=BAR 50define add_define_val 51 DEFINES += -D$(1)=$(2) 52endef 53 54# Convenience function for verifying option has a boolean value 55# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 56define assert_boolean 57 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 58endef 59 600-9 := 0 1 2 3 4 5 6 7 8 9 61 62# Function to verify that a given option $(1) contains a numeric value 63define assert_numeric 64$(if $($(1)),,$(error $(1) must not be empty)) 65$(eval __numeric := $($(1))) 66$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 67$(if $(__numeric),$(error $(1) must be numeric)) 68endef 69 70# CREATE_SEQ is a recursive function to create sequence of numbers from 1 to 71# $(2) and assign the sequence to $(1) 72define CREATE_SEQ 73$(if $(word $(2), $($(1))),\ 74 $(eval $(1) += $(words $($(1))))\ 75 $(eval $(1) := $(filter-out 0,$($(1)))),\ 76 $(eval $(1) += $(words $($(1))))\ 77 $(call CREATE_SEQ,$(1),$(2))\ 78) 79endef 80 81# IMG_LINKERFILE defines the linker script corresponding to a BL stage 82# $(1) = BL stage (1, 2, 2u, 31, 32) 83define IMG_LINKERFILE 84 ${BUILD_DIR}/bl$(1).ld 85endef 86 87# IMG_MAPFILE defines the output file describing the memory map corresponding 88# to a BL stage 89# $(1) = BL stage (1, 2, 2u, 31, 32) 90define IMG_MAPFILE 91 ${BUILD_DIR}/bl$(1).map 92endef 93 94# IMG_ELF defines the elf file corresponding to a BL stage 95# $(1) = BL stage (1, 2, 2u, 31, 32) 96define IMG_ELF 97 ${BUILD_DIR}/bl$(1).elf 98endef 99 100# IMG_DUMP defines the symbols dump file corresponding to a BL stage 101# $(1) = BL stage (1, 2, 2u, 31, 32) 102define IMG_DUMP 103 ${BUILD_DIR}/bl$(1).dump 104endef 105 106# IMG_BIN defines the default image file corresponding to a BL stage 107# $(1) = BL stage (1, 2, 2u, 31, 32) 108define IMG_BIN 109 ${BUILD_PLAT}/bl$(1).bin 110endef 111 112# IMG_ENC_BIN defines the default encrypted image file corresponding to a 113# BL stage 114# $(1) = BL stage (2, 30, 31, 32, 33) 115define IMG_ENC_BIN 116 ${BUILD_PLAT}/bl$(1)_enc.bin 117endef 118 119# ENCRYPT_FW invokes enctool to encrypt firmware binary 120# $(1) = input firmware binary 121# $(2) = output encrypted firmware binary 122define ENCRYPT_FW 123$(2): $(1) enctool 124 $$(ECHO) " ENC $$<" 125 $$(Q)$$(ENCTOOL) $$(ENC_ARGS) -i $$< -o $$@ 126endef 127 128# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to 129# package a new payload and/or by cert_create to generate certificate. 130# Optionally, it adds the dependency on this payload 131# $(1) = payload filename (i.e. bl31.bin) 132# $(2) = command line option for the specified payload (i.e. --soc-fw) 133# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 134# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 135# $(5) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 136define TOOL_ADD_PAYLOAD 137ifneq ($(5),) 138 $(4)FIP_ARGS += $(2) $(5) 139 $(if $(3),$(4)CRT_DEPS += $(1)) 140else 141 $(4)FIP_ARGS += $(2) $(1) 142 $(if $(3),$(4)CRT_DEPS += $(3)) 143endif 144 $(if $(3),$(4)FIP_DEPS += $(3)) 145 $(4)CRT_ARGS += $(2) $(1) 146endef 147 148# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters 149# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined. 150# $(1) = image_type (scp_bl2, bl33, etc.) 151# $(2) = payload filepath (ex. build/fvp/release/bl31.bin) 152# $(3) = command line option for the specified payload (ex. --soc-fw) 153# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 154# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 155# $(6) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 156 157define TOOL_ADD_IMG_PAYLOAD 158 159$(eval PRE_TOOL_FILTER := $($(call uppercase,$(1))_PRE_TOOL_FILTER)) 160 161ifneq ($(PRE_TOOL_FILTER),) 162 163$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX)) 164 165$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2)) 166 167$(PROCESSED_PATH): $(4) 168 169$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5),$(6)) 170 171else 172$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5),$(6)) 173endif 174endef 175 176# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation 177# $(1) = parameter filename 178# $(2) = cert_create command line option for the specified parameter 179# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 180define CERT_ADD_CMD_OPT 181 $(3)CRT_ARGS += $(2) $(1) 182endef 183 184# TOOL_ADD_IMG allows the platform to specify an external image to be packed 185# in the FIP and/or for which certificate is generated. It also adds a 186# dependency on the image file, aborting the build if the file does not exist. 187# $(1) = image_type (scp_bl2, bl33, etc.) 188# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc) 189# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 190# $(4) = Image encryption flag (optional) (0, 1) 191# Example: 192# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) 193define TOOL_ADD_IMG 194 # Build option to specify the image filename (SCP_BL2, BL33, etc) 195 # This is the uppercase form of the first parameter 196 $(eval _V := $(call uppercase,$(1))) 197 198 $(3)CRT_DEPS += check_$(1) 199 $(3)FIP_DEPS += check_$(1) 200ifeq ($(4),1) 201 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 202 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 203 $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 204 $(ENC_BIN)) 205else 206 $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),,$(3)) 207endif 208 209.PHONY: check_$(1) 210check_$(1): 211 $$(if $(value $(_V)),,$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) 212 $$(if $(wildcard $(value $(_V))),,$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) 213endef 214 215################################################################################ 216# Generic image processing filters 217################################################################################ 218 219# GZIP 220define GZIP_RULE 221$(1): $(2) 222 $(ECHO) " GZIP $$@" 223 $(Q)gzip -n -f -9 $$< --stdout > $$@ 224endef 225 226GZIP_SUFFIX := .gz 227 228################################################################################ 229# Auxiliary macros to build TF images from sources 230################################################################################ 231 232MAKE_DEP = -Wp,-MD,$(DEP) -MT $$@ -MP 233 234 235# MAKE_C_LIB builds a C source file and generates the dependency file 236# $(1) = output directory 237# $(2) = source file (%.c) 238# $(3) = library name 239define MAKE_C_LIB 240$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 241$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 242 243$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | lib$(3)_dirs 244 $$(ECHO) " CC $$<" 245 $$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) $(MAKE_DEP) -c $$< -o $$@ 246 247-include $(DEP) 248 249endef 250 251# MAKE_S_LIB builds an assembly source file and generates the dependency file 252# $(1) = output directory 253# $(2) = source file (%.S) 254# $(3) = library name 255define MAKE_S_LIB 256$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 257$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 258 259$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | lib$(3)_dirs 260 $$(ECHO) " AS $$<" 261 $$(Q)$$(AS) $$(ASFLAGS) $(MAKE_DEP) -c $$< -o $$@ 262 263-include $(DEP) 264 265endef 266 267 268# MAKE_C builds a C source file and generates the dependency file 269# $(1) = output directory 270# $(2) = source file (%.c) 271# $(3) = BL stage (1, 2, 2u, 31, 32) 272define MAKE_C 273 274$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 275$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 276$(eval IMAGE := IMAGE_BL$(call uppercase,$(3))) 277$(eval BL_CFLAGS := $(BL$(call uppercase,$(3))_CFLAGS)) 278 279$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs 280 $$(ECHO) " CC $$<" 281 $$(Q)$$(CC) $$(LTO_CFLAGS) $$(TF_CFLAGS) $$(CFLAGS) $(BL_CFLAGS) -D$(IMAGE) $(MAKE_DEP) -c $$< -o $$@ 282 283-include $(DEP) 284 285endef 286 287 288# MAKE_S builds an assembly source file and generates the dependency file 289# $(1) = output directory 290# $(2) = assembly file (%.S) 291# $(3) = BL stage (1, 2, 2u, 31, 32) 292define MAKE_S 293 294$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 295$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 296$(eval IMAGE := IMAGE_BL$(call uppercase,$(3))) 297 298$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs 299 $$(ECHO) " AS $$<" 300 $$(Q)$$(AS) $$(ASFLAGS) -D$(IMAGE) $(MAKE_DEP) -c $$< -o $$@ 301 302-include $(DEP) 303 304endef 305 306 307# MAKE_LD generate the linker script using the C preprocessor 308# $(1) = output linker script 309# $(2) = input template 310# $(3) = BL stage (1, 2, 2u, 31, 32) 311define MAKE_LD 312 313$(eval DEP := $(1).d) 314$(eval IMAGE := IMAGE_BL$(call uppercase,$(3))) 315 316$(1): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs 317 $$(ECHO) " PP $$<" 318 $$(Q)$$(CPP) $$(CPPFLAGS) $(TF_CFLAGS_$(ARCH)) -P -x assembler-with-cpp -D__LINKER__ $(MAKE_DEP) -D$(IMAGE) -o $$@ $$< 319 320-include $(DEP) 321 322endef 323 324# MAKE_LIB_OBJS builds both C and assembly source files 325# $(1) = output directory 326# $(2) = list of source files 327# $(3) = name of the library 328define MAKE_LIB_OBJS 329 $(eval C_OBJS := $(filter %.c,$(2))) 330 $(eval REMAIN := $(filter-out %.c,$(2))) 331 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(1),$(obj),$(3)))) 332 333 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 334 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 335 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S_LIB,$(1),$(obj),$(3)))) 336 337 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 338endef 339 340 341# MAKE_OBJS builds both C and assembly source files 342# $(1) = output directory 343# $(2) = list of source files (both C and assembly) 344# $(3) = BL stage (1, 2, 2u, 31, 32) 345define MAKE_OBJS 346 $(eval C_OBJS := $(filter %.c,$(2))) 347 $(eval REMAIN := $(filter-out %.c,$(2))) 348 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 349 350 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 351 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 352 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 353 354 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 355endef 356 357 358# NOTE: The line continuation '\' is required in the next define otherwise we 359# end up with a line-feed characer at the end of the last c filename. 360# Also bear this issue in mind if extending the list of supported filetypes. 361define SOURCES_TO_OBJS 362 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 363 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 364endef 365 366# Allow overriding the timestamp, for example for reproducible builds, or to 367# synchronize timestamps across multiple projects. 368# This must be set to a C string (including quotes where applicable). 369BUILD_MESSAGE_TIMESTAMP ?= __TIME__", "__DATE__ 370 371.PHONY: libraries 372 373# MAKE_LIB_DIRS macro defines the target for the directory where 374# libraries are created 375define MAKE_LIB_DIRS 376 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 377 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 378 $(eval LIBWRAPPER_DIR := ${BUILD_PLAT}/libwrapper) 379 $(eval $(call MAKE_PREREQ_DIR,${LIB_DIR},${BUILD_PLAT})) 380 $(eval $(call MAKE_PREREQ_DIR,${ROMLIB_DIR},${BUILD_PLAT})) 381 $(eval $(call MAKE_PREREQ_DIR,${LIBWRAPPER_DIR},${BUILD_PLAT})) 382endef 383 384# MAKE_LIB macro defines the targets and options to build each BL image. 385# Arguments: 386# $(1) = Library name 387define MAKE_LIB 388 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 389 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 390 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 391 $(eval SOURCES := $(LIB$(call uppercase,$(1))_SRCS)) 392 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 393 394$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT})) 395$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1))) 396 397.PHONY : lib${1}_dirs 398lib${1}_dirs: | ${BUILD_DIR} ${LIB_DIR} ${ROMLIB_DIR} ${LIBWRAPPER_DIR} 399libraries: ${LIB_DIR}/lib$(1).a 400ifneq ($(findstring armlink,$(notdir $(LD))),) 401LDPATHS = --userlibpath=${LIB_DIR} 402LDLIBS += --library=$(1) 403else 404LDPATHS = -L${LIB_DIR} 405LDLIBS += -l$(1) 406endif 407 408ifeq ($(USE_ROMLIB),1) 409LIBWRAPPER = -lwrappers 410endif 411 412all: ${LIB_DIR}/lib$(1).a 413 414${LIB_DIR}/lib$(1).a: $(OBJS) 415 $$(ECHO) " AR $$@" 416 $$(Q)$$(AR) cr $$@ $$? 417endef 418 419# MAKE_BL macro defines the targets and options to build each BL image. 420# Arguments: 421# $(1) = BL stage (1, 2, 2u, 31, 32) 422# $(2) = FIP command line option (if empty, image will not be included in the FIP) 423# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 424# $(4) = BL encryption flag (optional) (0, 1) 425define MAKE_BL 426 $(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1)) 427 $(eval BL_SOURCES := $(BL$(call uppercase,$(1))_SOURCES)) 428 $(eval SOURCES := $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES)) 429 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 430 $(eval LINKERFILE := $(call IMG_LINKERFILE,$(1))) 431 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 432 $(eval ELF := $(call IMG_ELF,$(1))) 433 $(eval DUMP := $(call IMG_DUMP,$(1))) 434 $(eval BIN := $(call IMG_BIN,$(1))) 435 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 436 $(eval BL_LINKERFILE := $(BL$(call uppercase,$(1))_LINKERFILE)) 437 $(eval BL_LIBS := $(BL$(call uppercase,$(1))_LIBS)) 438 # We use sort only to get a list of unique object directory names. 439 # ordering is not relevant but sort removes duplicates. 440 $(eval TEMP_OBJ_DIRS := $(sort $(dir ${OBJS} ${LINKERFILE}))) 441 # The $(dir ) function leaves a trailing / on the directory names 442 # Rip off the / to match directory names with make rule targets. 443 $(eval OBJ_DIRS := $(patsubst %/,%,$(TEMP_OBJ_DIRS))) 444 445# Create generators for object directory structure 446 447$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT})) 448 449$(eval $(foreach objd,${OBJ_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR}))) 450 451.PHONY : bl${1}_dirs 452 453# We use order-only prerequisites to ensure that directories are created, 454# but do not cause re-builds every time a file is written. 455bl${1}_dirs: | ${OBJ_DIRS} 456 457$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1))) 458$(eval $(call MAKE_LD,$(LINKERFILE),$(BL_LINKERFILE),$(1))) 459$(eval BL_LDFLAGS := $(BL$(call uppercase,$(1))_LDFLAGS)) 460 461ifeq ($(USE_ROMLIB),1) 462$(ELF): romlib.bin 463endif 464 465$(ELF): $(OBJS) $(LINKERFILE) | bl$(1)_dirs libraries $(BL_LIBS) 466 $$(ECHO) " LD $$@" 467ifdef MAKE_BUILD_STRINGS 468 $(call MAKE_BUILD_STRINGS, $(BUILD_DIR)/build_message.o) 469else 470 @echo 'const char build_message[] = "Built : "$(BUILD_MESSAGE_TIMESTAMP); \ 471 const char version_string[] = "${VERSION_STRING}";' | \ 472 $$(CC) $$(TF_CFLAGS) $$(CFLAGS) -xc -c - -o $(BUILD_DIR)/build_message.o 473endif 474ifneq ($(findstring armlink,$(notdir $(LD))),) 475 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=bl${1}_entrypoint \ 476 --predefine="-D__LINKER__=$(__LINKER__)" \ 477 --predefine="-DTF_CFLAGS=$(TF_CFLAGS)" \ 478 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/bl${1}.scat \ 479 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) \ 480 $(BUILD_DIR)/build_message.o $(OBJS) 481else ifneq ($(findstring gcc,$(notdir $(LD))),) 482 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) -Wl,-Map=$(MAPFILE) \ 483 -Wl,-T$(LINKERFILE) $(BUILD_DIR)/build_message.o \ 484 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 485else 486 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) -Map=$(MAPFILE) \ 487 --script $(LINKERFILE) $(BUILD_DIR)/build_message.o \ 488 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 489endif 490ifeq ($(DISABLE_BIN_GENERATION),1) 491 @${ECHO_BLANK_LINE} 492 @echo "Built $$@ successfully" 493 @${ECHO_BLANK_LINE} 494endif 495 496$(DUMP): $(ELF) 497 $${ECHO} " OD $$@" 498 $${Q}$${OD} -dx $$< > $$@ 499 500$(BIN): $(ELF) 501 $${ECHO} " BIN $$@" 502 $$(Q)$$(OC) -O binary $$< $$@ 503 @${ECHO_BLANK_LINE} 504 @echo "Built $$@ successfully" 505 @${ECHO_BLANK_LINE} 506 507.PHONY: bl$(1) 508ifeq ($(DISABLE_BIN_GENERATION),1) 509bl$(1): $(ELF) $(DUMP) 510else 511bl$(1): $(BIN) $(DUMP) 512endif 513 514all: bl$(1) 515 516ifeq ($(4),1) 517$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 518$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,bl$(1),$(BIN),--$(2),$(ENC_BIN),$(3), \ 519 $(ENC_BIN))) 520else 521$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,bl$(1),$(BIN),--$(2),$(BIN),$(3))) 522endif 523 524endef 525 526# Convert device tree source file names to matching blobs 527# $(1) = input dts 528define SOURCES_TO_DTBS 529 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 530endef 531 532# MAKE_FDT_DIRS macro creates the prerequisite directories that host the 533# FDT binaries 534# $(1) = output directory 535# $(2) = input dts 536define MAKE_FDT_DIRS 537 $(eval DTBS := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 538 $(eval TEMP_DTB_DIRS := $(sort $(dir ${DTBS}))) 539 # The $(dir ) function leaves a trailing / on the directory names 540 # Rip off the / to match directory names with make rule targets. 541 $(eval DTB_DIRS := $(patsubst %/,%,$(TEMP_DTB_DIRS))) 542 543$(eval $(foreach objd,${DTB_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR}))) 544 545fdt_dirs: ${DTB_DIRS} 546endef 547 548# MAKE_DTB generate the Flattened device tree binary 549# $(1) = output directory 550# $(2) = input dts 551define MAKE_DTB 552 553# List of DTB file(s) to generate, based on DTS file basename list 554$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 555# List of the pre-compiled DTS file(s) 556$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 557# Dependencies of the pre-compiled DTS file(s) on its source and included files 558$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 559# Dependencies of the DT compilation on its pre-compiled DTS 560$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 561 562$(DOBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | fdt_dirs 563 $${ECHO} " CPP $$<" 564 $(eval DTBS := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 565 $$(Q)$$(PP) $$(DTC_CPPFLAGS) -MT $(DTBS) -MMD -MF $(DTSDEP) -o $(DPRE) $$< 566 $${ECHO} " DTC $$<" 567 $$(Q)$$(DTC) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $(DPRE) 568 569-include $(DTBDEP) 570-include $(DTSDEP) 571 572endef 573 574# MAKE_DTBS builds flattened device tree sources 575# $(1) = output directory 576# $(2) = list of flattened device tree source files 577define MAKE_DTBS 578 $(eval DOBJS := $(filter %.dts,$(2))) 579 $(eval REMAIN := $(filter-out %.dts,$(2))) 580 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 581 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 582 583 $(eval $(call MAKE_FDT_DIRS,$(1),$(2))) 584 585dtbs: $(DTBS) 586all: dtbs 587endef 588