1# 2# Copyright (c) 2015-2023, 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 $$(eval)) 11endif 12 13# Some utility macros for manipulating awkward (whitespace) characters. 14blank := 15space :=${blank} ${blank} 16comma := , 17 18# A user defined function to recursively search for a filename below a directory 19# $1 is the directory root of the recursive search (blank for current directory). 20# $2 is the file name to search for. 21define rwildcard 22$(strip $(foreach d,$(wildcard ${1}*),$(call rwildcard,${d}/,${2}) $(filter $(subst *,%,%${2}),${d}))) 23endef 24 25# This table is used in converting lower case to upper case. 26uppercase_table:=a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z 27 28# Internal macro used for converting lower case to upper case. 29# $(1) = upper case table 30# $(2) = String to convert 31define uppercase_internal 32$(if $(1),$$(subst $(firstword $(1)),$(call uppercase_internal,$(wordlist 2,$(words $(1)),$(1)),$(2))),$(2)) 33endef 34 35# A macro for converting a string to upper case 36# $(1) = String to convert 37define uppercase 38$(eval uppercase_result:=$(call uppercase_internal,$(uppercase_table),$(1)))$(uppercase_result) 39endef 40 41# Convenience function for setting a variable to 0 if not previously set 42# $(eval $(call default_zero,FOO)) 43define default_zero 44 $(eval $(1) ?= 0) 45endef 46 47# Convenience function for setting a list of variables to 0 if not previously set 48# $(eval $(call default_zeros,FOO BAR)) 49define default_zeros 50 $(foreach var,$1,$(eval $(call default_zero,$(var)))) 51endef 52 53# Convenience function for adding build definitions 54# $(eval $(call add_define,FOO)) will have: 55# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 56define add_define 57 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 58endef 59 60# Convenience function for addding multiple build definitions 61# $(eval $(call add_defines,FOO BOO)) 62define add_defines 63 $(foreach def,$1,$(eval $(call add_define,$(def)))) 64endef 65 66# Convenience function for adding build definitions 67# $(eval $(call add_define_val,FOO,BAR)) will have: 68# -DFOO=BAR 69define add_define_val 70 DEFINES += -D$(1)=$(2) 71endef 72 73# Convenience function for verifying option has a boolean value 74# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 75define assert_boolean 76 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 77endef 78 79# Convenience function for verifying options have boolean values 80# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values 81define assert_booleans 82 $(foreach bool,$1,$(eval $(call assert_boolean,$(bool)))) 83endef 84 850-9 := 0 1 2 3 4 5 6 7 8 9 86 87# Function to verify that a given option $(1) contains a numeric value 88define assert_numeric 89$(if $($(1)),,$(error $(1) must not be empty)) 90$(eval __numeric := $($(1))) 91$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 92$(if $(__numeric),$(error $(1) must be numeric)) 93endef 94 95# Convenience function for verifying options have numeric values 96# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values 97define assert_numerics 98 $(foreach num,$1,$(eval $(call assert_numeric,$(num)))) 99endef 100 101# Convenience function to check for a given linker option. An call to 102# $(call ld_option, --no-XYZ) will return --no-XYZ if supported by the linker 103define ld_option 104 $(shell if $(LD) $(1) -v >/dev/null 2>&1; then echo $(1); fi ) 105endef 106 107# CREATE_SEQ is a recursive function to create sequence of numbers from 1 to 108# $(2) and assign the sequence to $(1) 109define CREATE_SEQ 110$(if $(word $(2), $($(1))),\ 111 $(eval $(1) += $(words $($(1))))\ 112 $(eval $(1) := $(filter-out 0,$($(1)))),\ 113 $(eval $(1) += $(words $($(1))))\ 114 $(call CREATE_SEQ,$(1),$(2))\ 115) 116endef 117 118# IMG_MAPFILE defines the output file describing the memory map corresponding 119# to a BL stage 120# $(1) = BL stage 121define IMG_MAPFILE 122 ${BUILD_DIR}/$(1).map 123endef 124 125# IMG_ELF defines the elf file corresponding to a BL stage 126# $(1) = BL stage 127define IMG_ELF 128 ${BUILD_DIR}/$(1).elf 129endef 130 131# IMG_DUMP defines the symbols dump file corresponding to a BL stage 132# $(1) = BL stage 133define IMG_DUMP 134 ${BUILD_DIR}/$(1).dump 135endef 136 137# IMG_BIN defines the default image file corresponding to a BL stage 138# $(1) = BL stage 139define IMG_BIN 140 ${BUILD_PLAT}/$(1).bin 141endef 142 143# IMG_ENC_BIN defines the default encrypted image file corresponding to a 144# BL stage 145# $(1) = BL stage 146define IMG_ENC_BIN 147 ${BUILD_PLAT}/$(1)_enc.bin 148endef 149 150# ENCRYPT_FW invokes enctool to encrypt firmware binary 151# $(1) = input firmware binary 152# $(2) = output encrypted firmware binary 153define ENCRYPT_FW 154$(2): $(1) enctool 155 $$(ECHO) " ENC $$<" 156 $$(Q)$$(ENCTOOL) $$(ENC_ARGS) -i $$< -o $$@ 157endef 158 159# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to 160# package a new payload and/or by cert_create to generate certificate. 161# Optionally, it adds the dependency on this payload 162# $(1) = payload filename (i.e. bl31.bin) 163# $(2) = command line option for the specified payload (i.e. --soc-fw) 164# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 165# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 166# $(5) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 167define TOOL_ADD_PAYLOAD 168ifneq ($(5),) 169 $(4)FIP_ARGS += $(2) $(5) 170 $(if $(3),$(4)CRT_DEPS += $(1)) 171else 172 $(4)FIP_ARGS += $(2) $(1) 173 $(if $(3),$(4)CRT_DEPS += $(3)) 174endif 175 $(if $(3),$(4)FIP_DEPS += $(3)) 176 $(4)CRT_ARGS += $(2) $(1) 177endef 178 179# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters 180# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined. 181# $(1) = image_type (scp_bl2, bl33, etc.) 182# $(2) = payload filepath (ex. build/fvp/release/bl31.bin) 183# $(3) = command line option for the specified payload (ex. --soc-fw) 184# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 185# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 186# $(6) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 187 188define TOOL_ADD_IMG_PAYLOAD 189 190$(eval PRE_TOOL_FILTER := $($(call uppercase,$(1))_PRE_TOOL_FILTER)) 191 192ifneq ($(PRE_TOOL_FILTER),) 193 194$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX)) 195 196$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2)) 197 198$(PROCESSED_PATH): $(4) 199 200$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5),$(6)) 201 202else 203$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5),$(6)) 204endif 205endef 206 207# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation 208# $(1) = parameter filename 209# $(2) = cert_create command line option for the specified parameter 210# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 211define CERT_ADD_CMD_OPT 212 $(3)CRT_ARGS += $(2) $(1) 213endef 214 215# TOOL_ADD_IMG allows the platform to specify an external image to be packed 216# in the FIP and/or for which certificate is generated. It also adds a 217# dependency on the image file, aborting the build if the file does not exist. 218# $(1) = image_type (scp_bl2, bl33, etc.) 219# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc) 220# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 221# $(4) = Image encryption flag (optional) (0, 1) 222# Example: 223# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) 224define TOOL_ADD_IMG 225 # Build option to specify the image filename (SCP_BL2, BL33, etc) 226 # This is the uppercase form of the first parameter 227 $(eval _V := $(call uppercase,$(1))) 228 229 # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also 230 # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the 231 # target ${BUILD_PLAT}/${$(3)FIP_NAME}. 232 $(eval check_$(1)_cmd := \ 233 $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \ 234 $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \ 235 ) 236 237 $(3)CRT_DEPS += check_$(1) 238 CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd) 239ifeq ($(4),1) 240 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 241 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 242 $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 243 $(ENC_BIN)) 244else 245 $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3)) 246endif 247 248.PHONY: check_$(1) 249check_$(1): 250 $(check_$(1)_cmd) 251endef 252 253# SELECT_OPENSSL_API_VERSION selects the OpenSSL API version to be used to 254# build the host tools by checking the version of OpenSSL located under 255# the path defined by the OPENSSL_DIR variable. It receives no parameters. 256define SELECT_OPENSSL_API_VERSION 257 # Set default value for USING_OPENSSL3 macro to 0 258 $(eval USING_OPENSSL3 = 0) 259 # Obtain the OpenSSL version for the build located under OPENSSL_DIR 260 $(eval OPENSSL_INFO := $(shell LD_LIBRARY_PATH=${OPENSSL_DIR}:${OPENSSL_DIR}/lib ${OPENSSL_BIN_PATH}/openssl version)) 261 $(eval OPENSSL_CURRENT_VER = $(word 2, ${OPENSSL_INFO})) 262 $(eval OPENSSL_CURRENT_VER_MAJOR = $(firstword $(subst ., ,$(OPENSSL_CURRENT_VER)))) 263 # If OpenSSL version is 3.x, then set USING_OPENSSL3 flag to 1 264 $(if $(filter 3,$(OPENSSL_CURRENT_VER_MAJOR)), $(eval USING_OPENSSL3 = 1)) 265endef 266 267################################################################################ 268# Generic image processing filters 269################################################################################ 270 271# GZIP 272define GZIP_RULE 273$(1): $(2) 274 $(ECHO) " GZIP $$@" 275 $(Q)gzip -n -f -9 $$< --stdout > $$@ 276endef 277 278GZIP_SUFFIX := .gz 279 280################################################################################ 281# Auxiliary macros to build TF images from sources 282################################################################################ 283 284MAKE_DEP = -Wp,-MD,$(DEP) -MT $$@ -MP 285 286 287# MAKE_C_LIB builds a C source file and generates the dependency file 288# $(1) = output directory 289# $(2) = source file (%.c) 290# $(3) = library name 291define MAKE_C_LIB 292$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 293$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 294$(eval LIB := $(call uppercase, $(notdir $(1)))) 295 296$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | lib$(3)_dirs 297 $$(ECHO) " CC $$<" 298 $$(Q)$$(CC) $$($(LIB)_CFLAGS) $$(TF_CFLAGS) $$(CFLAGS) $(MAKE_DEP) -c $$< -o $$@ 299 300-include $(DEP) 301 302endef 303 304# MAKE_S_LIB builds an assembly source file and generates the dependency file 305# $(1) = output directory 306# $(2) = source file (%.S) 307# $(3) = library name 308define MAKE_S_LIB 309$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 310$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 311 312$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | lib$(3)_dirs 313 $$(ECHO) " AS $$<" 314 $$(Q)$$(AS) $$(ASFLAGS) $(MAKE_DEP) -c $$< -o $$@ 315 316-include $(DEP) 317 318endef 319 320 321# MAKE_C builds a C source file and generates the dependency file 322# $(1) = output directory 323# $(2) = source file (%.c) 324# $(3) = BL stage 325define MAKE_C 326 327$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 328$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 329$(eval BL_CPPFLAGS := $($(call uppercase,$(3))_CPPFLAGS) -DIMAGE_$(call uppercase,$(3))) 330$(eval BL_CFLAGS := $($(call uppercase,$(3))_CFLAGS)) 331 332$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $(3)_dirs 333 $$(ECHO) " CC $$<" 334 $$(Q)$$(CC) $$(LTO_CFLAGS) $$(TF_CFLAGS) $$(CFLAGS) $(BL_CPPFLAGS) $(BL_CFLAGS) $(MAKE_DEP) -c $$< -o $$@ 335 336-include $(DEP) 337 338endef 339 340 341# MAKE_S builds an assembly source file and generates the dependency file 342# $(1) = output directory 343# $(2) = assembly file (%.S) 344# $(3) = BL stage 345define MAKE_S 346 347$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 348$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 349$(eval BL_CPPFLAGS := $($(call uppercase,$(3))_CPPFLAGS) -DIMAGE_$(call uppercase,$(3))) 350$(eval BL_ASFLAGS := $($(call uppercase,$(3))_ASFLAGS)) 351 352$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $(3)_dirs 353 $$(ECHO) " AS $$<" 354 $$(Q)$$(AS) $$(ASFLAGS) $(BL_CPPFLAGS) $(BL_ASFLAGS) $(MAKE_DEP) -c $$< -o $$@ 355 356-include $(DEP) 357 358endef 359 360 361# MAKE_LD generate the linker script using the C preprocessor 362# $(1) = output linker script 363# $(2) = input template 364# $(3) = BL stage 365define MAKE_LD 366 367$(eval DEP := $(1).d) 368$(eval BL_CPPFLAGS := $($(call uppercase,$(3))_CPPFLAGS) -DIMAGE_$(call uppercase,$(3))) 369 370$(1): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $(3)_dirs 371 $$(ECHO) " PP $$<" 372 $$(Q)$$(CPP) $$(CPPFLAGS) $(BL_CPPFLAGS) $(TF_CFLAGS_$(ARCH)) -P -x assembler-with-cpp -D__LINKER__ $(MAKE_DEP) -o $$@ $$< 373 374-include $(DEP) 375 376endef 377 378# MAKE_LIB_OBJS builds both C and assembly source files 379# $(1) = output directory 380# $(2) = list of source files 381# $(3) = name of the library 382define MAKE_LIB_OBJS 383 $(eval C_OBJS := $(filter %.c,$(2))) 384 $(eval REMAIN := $(filter-out %.c,$(2))) 385 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(1),$(obj),$(3)))) 386 387 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 388 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 389 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S_LIB,$(1),$(obj),$(3)))) 390 391 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 392endef 393 394 395# MAKE_OBJS builds both C and assembly source files 396# $(1) = output directory 397# $(2) = list of source files (both C and assembly) 398# $(3) = BL stage 399define MAKE_OBJS 400 $(eval C_OBJS := $(filter %.c,$(2))) 401 $(eval REMAIN := $(filter-out %.c,$(2))) 402 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3)))) 403 404 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 405 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 406 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3)))) 407 408 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 409endef 410 411 412# NOTE: The line continuation '\' is required in the next define otherwise we 413# end up with a line-feed characer at the end of the last c filename. 414# Also bear this issue in mind if extending the list of supported filetypes. 415define SOURCES_TO_OBJS 416 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 417 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 418endef 419 420# Allow overriding the timestamp, for example for reproducible builds, or to 421# synchronize timestamps across multiple projects. 422# This must be set to a C string (including quotes where applicable). 423BUILD_MESSAGE_TIMESTAMP ?= __TIME__", "__DATE__ 424 425.PHONY: libraries 426 427# MAKE_LIB_DIRS macro defines the target for the directory where 428# libraries are created 429define MAKE_LIB_DIRS 430 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 431 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 432 $(eval LIBWRAPPER_DIR := ${BUILD_PLAT}/libwrapper) 433 $(eval $(call MAKE_PREREQ_DIR,${LIB_DIR},${BUILD_PLAT})) 434 $(eval $(call MAKE_PREREQ_DIR,${ROMLIB_DIR},${BUILD_PLAT})) 435 $(eval $(call MAKE_PREREQ_DIR,${LIBWRAPPER_DIR},${BUILD_PLAT})) 436endef 437 438# MAKE_LIB macro defines the targets and options to build each BL image. 439# Arguments: 440# $(1) = Library name 441define MAKE_LIB 442 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 443 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 444 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 445 $(eval SOURCES := $(LIB$(call uppercase,$(1))_SRCS)) 446 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 447 448$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT})) 449$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1))) 450 451.PHONY : lib${1}_dirs 452lib${1}_dirs: | ${BUILD_DIR} ${LIB_DIR} ${ROMLIB_DIR} ${LIBWRAPPER_DIR} 453libraries: ${LIB_DIR}/lib$(1).a 454ifneq ($(findstring armlink,$(notdir $(LD))),) 455LDPATHS = --userlibpath=${LIB_DIR} 456LDLIBS += --library=$(1) 457else 458LDPATHS = -L${LIB_DIR} 459LDLIBS += -l$(1) 460endif 461 462ifeq ($(USE_ROMLIB),1) 463LIBWRAPPER = -lwrappers 464endif 465 466all: ${LIB_DIR}/lib$(1).a 467 468${LIB_DIR}/lib$(1).a: $(OBJS) 469 $$(ECHO) " AR $$@" 470 $$(Q)$$(AR) cr $$@ $$? 471endef 472 473# Generate the path to one or more preprocessed linker scripts given the paths 474# of their sources. 475# 476# Arguments: 477# $(1) = path to one or more linker script sources 478define linker_script_path 479 $(patsubst %.S,$(BUILD_DIR)/%,$(1)) 480endef 481 482# MAKE_BL macro defines the targets and options to build each BL image. 483# Arguments: 484# $(1) = BL stage 485# $(2) = FIP command line option (if empty, image will not be included in the FIP) 486# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 487# $(4) = BL encryption flag (optional) (0, 1) 488define MAKE_BL 489 $(eval BUILD_DIR := ${BUILD_PLAT}/$(1)) 490 $(eval BL_SOURCES := $($(call uppercase,$(1))_SOURCES)) 491 $(eval SOURCES := $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES)) 492 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 493 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 494 $(eval ELF := $(call IMG_ELF,$(1))) 495 $(eval DUMP := $(call IMG_DUMP,$(1))) 496 $(eval BIN := $(call IMG_BIN,$(1))) 497 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 498 $(eval BL_LIBS := $($(call uppercase,$(1))_LIBS)) 499 500 $(eval DEFAULT_LINKER_SCRIPT_SOURCE := $($(call uppercase,$(1))_DEFAULT_LINKER_SCRIPT_SOURCE)) 501 $(eval DEFAULT_LINKER_SCRIPT := $(call linker_script_path,$(DEFAULT_LINKER_SCRIPT_SOURCE))) 502 503 $(eval LINKER_SCRIPT_SOURCES := $($(call uppercase,$(1))_LINKER_SCRIPT_SOURCES)) 504 $(eval LINKER_SCRIPTS := $(call linker_script_path,$(LINKER_SCRIPT_SOURCES))) 505 506 # We use sort only to get a list of unique object directory names. 507 # ordering is not relevant but sort removes duplicates. 508 $(eval TEMP_OBJ_DIRS := $(sort $(dir ${OBJS} ${DEFAULT_LINKER_SCRIPT} ${LINKER_SCRIPTS}))) 509 # The $(dir ) function leaves a trailing / on the directory names 510 # Rip off the / to match directory names with make rule targets. 511 $(eval OBJ_DIRS := $(patsubst %/,%,$(TEMP_OBJ_DIRS))) 512 513# Create generators for object directory structure 514 515$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT})) 516 517$(eval $(foreach objd,${OBJ_DIRS}, 518 $(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR}))) 519 520.PHONY : ${1}_dirs 521 522# We use order-only prerequisites to ensure that directories are created, 523# but do not cause re-builds every time a file is written. 524${1}_dirs: | ${OBJ_DIRS} 525 526$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1))) 527 528# Generate targets to preprocess each required linker script 529$(eval $(foreach source,$(DEFAULT_LINKER_SCRIPT_SOURCE) $(LINKER_SCRIPT_SOURCES), \ 530 $(call MAKE_LD,$(call linker_script_path,$(source)),$(source),$(1)))) 531 532$(eval BL_LDFLAGS := $($(call uppercase,$(1))_LDFLAGS)) 533 534ifeq ($(USE_ROMLIB),1) 535$(ELF): romlib.bin 536endif 537 538# MODULE_OBJS can be assigned by vendors with different compiled 539# object file path, and prebuilt object file path. 540$(eval OBJS += $(MODULE_OBJS)) 541 542$(ELF): $(OBJS) $(DEFAULT_LINKER_SCRIPT) $(LINKER_SCRIPTS) | $(1)_dirs libraries $(BL_LIBS) 543 $$(ECHO) " LD $$@" 544ifdef MAKE_BUILD_STRINGS 545 $(call MAKE_BUILD_STRINGS, $(BUILD_DIR)/build_message.o) 546else 547 @echo 'const char build_message[] = "Built : "$(BUILD_MESSAGE_TIMESTAMP); \ 548 const char version_string[] = "${VERSION_STRING}"; \ 549 const char version[] = "${VERSION}";' | \ 550 $$(CC) $$(TF_CFLAGS) $$(CFLAGS) -xc -c - -o $(BUILD_DIR)/build_message.o 551endif 552ifneq ($(findstring armlink,$(notdir $(LD))),) 553 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=${1}_entrypoint \ 554 --predefine="-D__LINKER__=$(__LINKER__)" \ 555 --predefine="-DTF_CFLAGS=$(TF_CFLAGS)" \ 556 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/${1}.scat \ 557 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) \ 558 $(BUILD_DIR)/build_message.o $(OBJS) 559else ifneq ($(findstring gcc,$(notdir $(LD))),) 560 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) -Wl,-Map=$(MAPFILE) \ 561 $(addprefix -Wl$(comma)--script$(comma),$(LINKER_SCRIPTS)) -Wl,--script,$(DEFAULT_LINKER_SCRIPT) \ 562 $(BUILD_DIR)/build_message.o \ 563 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 564else 565 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) -Map=$(MAPFILE) \ 566 $(addprefix -T ,$(LINKER_SCRIPTS)) --script $(DEFAULT_LINKER_SCRIPT) \ 567 $(BUILD_DIR)/build_message.o \ 568 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 569endif 570ifeq ($(DISABLE_BIN_GENERATION),1) 571 @${ECHO_BLANK_LINE} 572 @echo "Built $$@ successfully" 573 @${ECHO_BLANK_LINE} 574endif 575 576$(DUMP): $(ELF) 577 $${ECHO} " OD $$@" 578 $${Q}$${OD} -dx $$< > $$@ 579 580$(BIN): $(ELF) 581 $${ECHO} " BIN $$@" 582 $$(Q)$$(OC) -O binary $$< $$@ 583 @${ECHO_BLANK_LINE} 584 @echo "Built $$@ successfully" 585 @${ECHO_BLANK_LINE} 586 587.PHONY: $(1) 588ifeq ($(DISABLE_BIN_GENERATION),1) 589$(1): $(ELF) $(DUMP) 590else 591$(1): $(BIN) $(DUMP) 592endif 593 594all: $(1) 595 596ifeq ($(4),1) 597$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 598$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(1),$(BIN),--$(2),$(ENC_BIN),$(3), \ 599 $(ENC_BIN))) 600else 601$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(1),$(BIN),--$(2),$(BIN),$(3))) 602endif 603 604endef 605 606# Convert device tree source file names to matching blobs 607# $(1) = input dts 608define SOURCES_TO_DTBS 609 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 610endef 611 612# MAKE_FDT_DIRS macro creates the prerequisite directories that host the 613# FDT binaries 614# $(1) = output directory 615# $(2) = input dts 616define MAKE_FDT_DIRS 617 $(eval DTBS := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 618 $(eval TEMP_DTB_DIRS := $(sort $(dir ${DTBS}))) 619 # The $(dir ) function leaves a trailing / on the directory names 620 # Rip off the / to match directory names with make rule targets. 621 $(eval DTB_DIRS := $(patsubst %/,%,$(TEMP_DTB_DIRS))) 622 623$(eval $(foreach objd,${DTB_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR}))) 624 625fdt_dirs: ${DTB_DIRS} 626endef 627 628# MAKE_DTB generate the Flattened device tree binary 629# $(1) = output directory 630# $(2) = input dts 631define MAKE_DTB 632 633# List of DTB file(s) to generate, based on DTS file basename list 634$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 635# List of the pre-compiled DTS file(s) 636$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 637# Dependencies of the pre-compiled DTS file(s) on its source and included files 638$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 639# Dependencies of the DT compilation on its pre-compiled DTS 640$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 641 642$(DOBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | fdt_dirs 643 $${ECHO} " CPP $$<" 644 $(eval DTBS := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 645 $$(Q)$$(PP) $$(DTC_CPPFLAGS) -MT $(DTBS) -MMD -MF $(DTSDEP) -o $(DPRE) $$< 646 $${ECHO} " DTC $$<" 647 $$(Q)$$(DTC) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $(DPRE) 648 649-include $(DTBDEP) 650-include $(DTSDEP) 651 652endef 653 654# MAKE_DTBS builds flattened device tree sources 655# $(1) = output directory 656# $(2) = list of flattened device tree source files 657define MAKE_DTBS 658 $(eval DOBJS := $(filter %.dts,$(2))) 659 $(eval REMAIN := $(filter-out %.dts,$(2))) 660 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 661 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 662 663 $(eval $(call MAKE_FDT_DIRS,$(1),$(2))) 664 665dtbs: $(DTBS) 666all: dtbs 667endef 668