1# 2# Copyright (c) 2015-2025, 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# A user defined function to recursively search for a filename below a directory 14# $1 is the directory root of the recursive search (blank for current directory). 15# $2 is the file name to search for. 16define rwildcard 17$(strip $(foreach d,$(wildcard ${1}*),$(call rwildcard,${d}/,${2}) $(filter $(subst *,%,%${2}),${d}))) 18endef 19 20# Convenience function for setting a variable to 0 if not previously set 21# $(eval $(call default_zero,FOO)) 22define default_zero 23 $(eval $(1) ?= 0) 24endef 25 26# Convenience function for setting a list of variables to 0 if not previously set 27# $(eval $(call default_zeros,FOO BAR)) 28define default_zeros 29 $(foreach var,$1,$(eval $(call default_zero,$(var)))) 30endef 31 32# Convenience function for setting a variable to 1 if not previously set 33# $(eval $(call default_one,FOO)) 34define default_one 35 $(eval $(1) ?= 1) 36endef 37 38# Convenience function for setting a list of variables to 1 if not previously set 39# $(eval $(call default_ones,FOO BAR)) 40define default_ones 41 $(foreach var,$1,$(eval $(call default_one,$(var)))) 42endef 43 44# Convenience function for adding build definitions 45# $(eval $(call add_define,FOO)) will have: 46# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 47define add_define 48 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 49endef 50 51# Convenience function for addding multiple build definitions 52# $(eval $(call add_defines,FOO BOO)) 53define add_defines 54 $(foreach def,$1,$(eval $(call add_define,$(def)))) 55endef 56 57# Convenience function for adding build definitions 58# $(eval $(call add_define_val,FOO,BAR)) will have: 59# -DFOO=BAR 60define add_define_val 61 DEFINES += -D$(1)=$(2) 62endef 63 64# Convenience function for verifying option has a boolean value 65# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 66define assert_boolean 67 $(if $($(1)),,$(error $(1) must not be empty)) 68 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 69endef 70 71# Convenience function for verifying options have boolean values 72# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values 73define assert_booleans 74 $(foreach bool,$1,$(eval $(call assert_boolean,$(bool)))) 75endef 76 770-9 := 0 1 2 3 4 5 6 7 8 9 78 79# Function to verify that a given option $(1) contains a numeric value 80define assert_numeric 81$(if $($(1)),,$(error $(1) must not be empty)) 82$(eval __numeric := $($(1))) 83$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 84$(if $(__numeric),$(error $(1) must be numeric)) 85endef 86 87# Convenience function for verifying options have numeric values 88# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values 89define assert_numerics 90 $(foreach num,$1,$(eval $(call assert_numeric,$(num)))) 91endef 92 93# Convenience function to check for a given linker option. An call to 94# $(call ld_option, --no-XYZ) will return --no-XYZ if supported by the linker 95ld_option = $(shell $($(ARCH)-ld) $(1) -Wl,--version >/dev/null 2>&1 || $($(ARCH)-ld) $(1) -v >/dev/null 2>&1 && echo $(1)) 96 97# Convenience function to check for a given compiler option. A call to 98# $(call cc_option, --no-XYZ) will return --no-XYZ if supported by the compiler 99# NOTE: consider assigning to an immediately expanded temporary variable before 100# assigning. This is because variables like TF_CFLAGS are recursively expanded 101# and assigning this directly will cause it to be expanded every time the 102# variable is used, potentially thrashing multicore performance. 103define cc_option 104 $(shell if $($(ARCH)-cc) $(1) -c -x c /dev/null -o /dev/null >/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 $$(s)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 := $($(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 BL := $(call uppercase,$(1))) 228 $(eval _V := $(BL)) 229 230 # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also 231 # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the 232 # target ${BUILD_PLAT}/${$(3)FIP_NAME}. 233 $(eval check_$(1)_cmd := \ 234 $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \ 235 $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \ 236 ) 237 238 $(3)CRT_DEPS += check_$(1) 239 CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd) 240ifeq ($(4),1) 241 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 242 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 243 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 244 $(ENC_BIN)) 245else 246 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3)) 247endif 248 249.PHONY: check_$(1) 250check_$(1): 251 $(check_$(1)_cmd) 252endef 253 254# SELECT_OPENSSL_API_VERSION selects the OpenSSL API version to be used to 255# build the host tools by checking the version of OpenSSL located under 256# the path defined by the OPENSSL_DIR variable. It receives no parameters. 257define SELECT_OPENSSL_API_VERSION 258 # Set default value for USING_OPENSSL3 macro to 0 259 $(eval USING_OPENSSL3 = 0) 260 # Obtain the OpenSSL version for the build located under OPENSSL_DIR 261 $(eval OPENSSL_INFO := $(shell LD_LIBRARY_PATH=${OPENSSL_DIR}:${OPENSSL_DIR}/lib ${OPENSSL_BIN_PATH}/openssl version)) 262 $(eval OPENSSL_CURRENT_VER = $(word 2, ${OPENSSL_INFO})) 263 $(eval OPENSSL_CURRENT_VER_MAJOR = $(firstword $(subst ., ,$(OPENSSL_CURRENT_VER)))) 264 # If OpenSSL version is 3.x, then set USING_OPENSSL3 flag to 1 265 $(if $(filter 3,$(OPENSSL_CURRENT_VER_MAJOR)), $(eval USING_OPENSSL3 = 1)) 266endef 267 268################################################################################ 269# Generic image processing filters 270################################################################################ 271 272# GZIP 273define GZIP_RULE 274$(1): $(2) 275 $(s)echo " GZIP $$@" 276 $(q)gzip -n -f -9 $$< --stdout > $$@ 277endef 278 279GZIP_SUFFIX := .gz 280 281################################################################################ 282# Auxiliary macros to build TF images from sources 283################################################################################ 284 285MAKE_DEP = -Wp,-MD,$1 -MT $2 -MP 286 287# MAKE_TOOL_C builds a C source file and generates the dependency file 288# $(1) = output directory 289# $(2) = source file (%.c) 290# $(3) = lowercase name of the tool 291# $(4) = uppercase name of the tool 292define MAKE_TOOL_C 293 294$(eval SRC := $(2)) 295$(eval OBJ := $(patsubst %.c,$(1)/$(3)/%.o,$(SRC))) 296$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 297 298$(eval TOOL_DEFINES := $($(4)_DEFINES)) 299$(eval TOOL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 300$(eval TOOL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(TOOL_DEFINES)) $(addprefix -I,$(TOOL_INCLUDE_DIRS))) 301$(eval TOOL_CFLAGS := $($(4)_CFLAGS)) 302 303$(OBJ): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 304 $$(s)echo " HOSTCC $$<" 305 $$(q)$(host-cc) $$(HOSTCCFLAGS) $(TOOL_CPPFLAGS) $(TOOL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 306 307-include $(DEP) 308 309endef 310 311# MAKE_TOOL 312# $(1) = output directory 313# $(2) = lowercase name of the tool 314# $(3) = uppercase name of the tool 315define MAKE_TOOL 316$(eval SRCS := $($(3)_SOURCES)) 317$(eval OBJS := $(patsubst %.c,$(1)/$(2)/%.o,$(SRCS))) 318$(eval DST := $(1)/$(2)/$(2)$(.exe)) 319$(eval $(foreach src,$(SRCS),$(call MAKE_TOOL_C,$(1),$(src),$(2),$(3)))) 320 321$(DST): $(OBJS) $(filter-out %.d,$(MAKEFILE_LIST)) 322 $$(s)echo " HOSTLD $$@" 323 $$(q)$(host-cc) $${OBJS} -o $$@ $($(3)_LDFLAGS) 324 $$(s)echo 325 $$(s)echo "Built $$@ successfully" 326 $$(s)echo 327 328all: $(DST) 329endef 330 331# MAKE_C_LIB builds a C source file and generates the dependency file 332# $(1) = output directory 333# $(2) = source file (%.c) 334# $(3) = library name 335# $(4) = uppercase name of the library 336define MAKE_C_LIB 337$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 338$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 339$(eval LIB := $(notdir $(1))) 340 341$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 342 $$(s)echo " CC $$<" 343 $$(q)$($(ARCH)-cc) $$($(LIB)_CFLAGS) $$(TF_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 344 345-include $(DEP) 346 347endef 348 349# MAKE_S_LIB builds an assembly source file and generates the dependency file 350# $(1) = output directory 351# $(2) = source file (%.S) 352# $(3) = library name 353# $(4) = uppercase name of the library 354define MAKE_S_LIB 355$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 356$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 357 358$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 359 $$(s)echo " AS $$<" 360 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 361 362-include $(DEP) 363 364endef 365 366 367# MAKE_C builds a C source file and generates the dependency file 368# $(1) = output directory 369# $(2) = source file (%.c) 370# $(3) = BL stage 371# $(4) = uppercase BL stage 372define MAKE_C 373 374$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 375$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 376 377$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 378$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 379$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 380$(eval BL_CFLAGS := $($(4)_CFLAGS)) 381 382$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 383 $$(s)echo " CC $$<" 384 $$(q)$($(ARCH)-cc) $$(LTO_CFLAGS) $$(TF_CFLAGS) $(BL_CPPFLAGS) $(BL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 385 386-include $(DEP) 387 388endef 389 390 391# MAKE_S builds an assembly source file and generates the dependency file 392# $(1) = output directory 393# $(2) = assembly file (%.S) 394# $(3) = BL stage 395# $(4) = uppercase BL stage 396define MAKE_S 397 398$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 399$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 400 401$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 402$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 403$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 404$(eval BL_ASFLAGS := $($(4)_ASFLAGS)) 405 406$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 407 $$(s)echo " AS $$<" 408 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(BL_CPPFLAGS) $(BL_ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 409 410-include $(DEP) 411 412endef 413 414# MAKE_PRE run the C preprocessor on a file 415# $(1) = output file 416# $(2) = list of input files 417# $(3) = dep file 418# $(4) = list of rule-specific flags to pass 419define MAKE_PRE 420$(eval OUT := $(1)) 421$(eval SRC := $(2)) 422$(eval DEP := $(3)) 423$(eval CUSTOM_FLAGS := $(4)) 424$(OUT): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 425 $$(s)echo " CPP $$<" 426 $$(q)$($(ARCH)-cpp) -E -P -x assembler-with-cpp $$(TF_CFLAGS) $(CUSTOM_FLAGS) $(call MAKE_DEP,$(DEP),$(OUT)) -o $$@ $$< 427endef 428 429# MAKE_LD generate the linker script using the C preprocessor 430# $(1) = output linker script 431# $(2) = input template 432# $(3) = BL stage 433# $(4) = uppercase BL stage 434define MAKE_LD 435 436$(eval DEP := $(1).d) 437 438$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 439$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 440$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 441$(eval FLAGS := -D__LINKER__ $(BL_CPPFLAGS)) 442 443$(eval $(call MAKE_PRE,$(1),$(2),$(DEP),$(FLAGS))) 444-include $(DEP) 445 446endef 447 448# MAKE_LIB_OBJS builds both C and assembly source files 449# $(1) = output directory 450# $(2) = list of source files 451# $(3) = name of the library 452# $(4) = uppercase name of the library 453define MAKE_LIB_OBJS 454 $(eval C_OBJS := $(filter %.c,$(2))) 455 $(eval REMAIN := $(filter-out %.c,$(2))) 456 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(1),$(obj),$(3),$(4)))) 457 458 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 459 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 460 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S_LIB,$(1),$(obj),$(3),$(4)))) 461 462 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 463endef 464 465 466# MAKE_OBJS builds both C and assembly source files 467# $(1) = output directory 468# $(2) = list of source files (both C and assembly) 469# $(3) = BL stage 470# $(4) = uppercase BL stage 471define MAKE_OBJS 472 $(eval C_OBJS := $(filter %.c,$(2))) 473 $(eval REMAIN := $(filter-out %.c,$(2))) 474 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3),$(4)))) 475 476 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 477 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 478 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3),$(4)))) 479 480 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 481endef 482 483 484# NOTE: The line continuation '\' is required in the next define otherwise we 485# end up with a line-feed characer at the end of the last c filename. 486# Also bear this issue in mind if extending the list of supported filetypes. 487define SOURCES_TO_OBJS 488 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 489 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 490endef 491 492.PHONY: libraries 493 494# MAKE_LIB macro defines the targets and options to build each BL image. 495# Arguments: 496# $(1) = Library name 497define MAKE_LIB 498 $(eval BL := $(call uppercase,$(1))) 499 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 500 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 501 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 502 $(eval SOURCES := $(LIB$(BL)_SRCS)) 503 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 504 505$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 506 507libraries: ${LIB_DIR}/lib$(1).a 508ifeq ($($(ARCH)-ld-id),arm-link) 509LDPATHS = --userlibpath=${LIB_DIR} 510LDLIBS += --library=$(1) 511else 512LDPATHS = -L${LIB_DIR} 513LDLIBS += -l$(1) 514endif 515 516ifeq ($(USE_ROMLIB),1) 517LIBWRAPPER = -lwrappers 518endif 519 520all: ${LIB_DIR}/lib$(1).a 521 522${LIB_DIR}/lib$(1).a: $(OBJS) | $$$$(@D)/ 523 $$(s)echo " AR $$@" 524 $$(q)$($(ARCH)-ar) cr $$@ $$? 525endef 526 527# Generate the path to one or more preprocessed linker scripts given the paths 528# of their sources. 529# 530# Arguments: 531# $(1) = path to one or more linker script sources 532define linker_script_path 533 $(patsubst %.S,$(BUILD_DIR)/%,$(1)) 534endef 535 536ifeq ($(USE_ROMLIB),1) 537WRAPPER_FLAGS := @${BUILD_PLAT}/romlib/romlib.ldflags 538endif 539 540# MAKE_BL macro defines the targets and options to build each BL image. 541# Arguments: 542# $(1) = BL stage 543# $(2) = FIP command line option (if empty, image will not be included in the FIP) 544# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 545# $(4) = BL encryption flag (optional) (0, 1) 546define MAKE_BL 547 $(eval BL := $(call uppercase,$(1))) 548 $(eval BUILD_DIR := ${BUILD_PLAT}/$(1)) 549 $(eval BL_SOURCES := $($(BL)_SOURCES)) 550 $(eval SOURCES := $(sort $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))) 551 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 552 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 553 $(eval ELF := $(call IMG_ELF,$(1))) 554 $(eval DUMP := $(call IMG_DUMP,$(1))) 555 $(eval BIN := $(call IMG_BIN,$(1))) 556 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 557 $(eval BL_LIBS := $($(BL)_LIBS)) 558 559 $(eval DEFAULT_LINKER_SCRIPT_SOURCE := $($(BL)_DEFAULT_LINKER_SCRIPT_SOURCE)) 560 $(eval DEFAULT_LINKER_SCRIPT := $(call linker_script_path,$(DEFAULT_LINKER_SCRIPT_SOURCE))) 561 562 $(eval LINKER_SCRIPT_SOURCES := $($(BL)_LINKER_SCRIPT_SOURCES)) 563 $(eval LINKER_SCRIPTS := $(call linker_script_path,$(LINKER_SCRIPT_SOURCES))) 564 565$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 566 567# Generate targets to preprocess each required linker script 568$(eval $(foreach source,$(DEFAULT_LINKER_SCRIPT_SOURCE) $(LINKER_SCRIPT_SOURCES), \ 569 $(call MAKE_LD,$(call linker_script_path,$(source)),$(source),$(1),$(BL)))) 570 571$(eval BL_LDFLAGS := $($(BL)_LDFLAGS)) 572 573ifeq ($(USE_ROMLIB),1) 574$(ELF): $(BUILD_PLAT)/romlib/romlib.bin | $$$$(@D)/ 575endif 576 577# MODULE_OBJS can be assigned by vendors with different compiled 578# object file path, and prebuilt object file path. 579$(eval OBJS += $(MODULE_OBJS)) 580 581$(ELF): $(OBJS) $(DEFAULT_LINKER_SCRIPT) $(LINKER_SCRIPTS) | $$$$(@D)/ libraries $(BL_LIBS) 582 $$(s)echo " LD $$@" 583ifeq ($($(ARCH)-ld-id),arm-link) 584 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=${1}_entrypoint \ 585 --predefine=$(call escape-shell,-D__LINKER__=$(__LINKER__)) \ 586 --predefine=$(call escape-shell,-DTF_CFLAGS=$(TF_CFLAGS)) \ 587 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/${1}.scat \ 588 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) $(OBJS) 589else ifeq ($($(ARCH)-ld-id),gnu-gcc) 590 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $$(WRAPPER_FLAGS) $(BL_LDFLAGS) -Wl,-Map=$(MAPFILE) \ 591 $(addprefix -Wl$(comma)--script$(comma),$(LINKER_SCRIPTS)) -Wl,--script,$(DEFAULT_LINKER_SCRIPT) \ 592 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 593else 594 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $$(WRAPPER_FLAGS) $(BL_LDFLAGS) -Map=$(MAPFILE) \ 595 $(addprefix -T ,$(LINKER_SCRIPTS)) --script $(DEFAULT_LINKER_SCRIPT) \ 596 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 597endif 598ifeq ($(DISABLE_BIN_GENERATION),1) 599 $(s)echo 600 $(s)echo "Built $$@ successfully" 601 $(s)echo 602endif 603 604$(DUMP): $(ELF) | $$$$(@D)/ 605 $$(s)echo " OD $$@" 606 $$(q)$($(ARCH)-od) -dx $$< > $$@ 607 608$(BIN): $(ELF) | $$$$(@D)/ 609 $$(s)echo " BIN $$@" 610 $$(q)$($(ARCH)-oc) -O binary $$< $$@ 611 $(s)echo 612 $(s)echo "Built $$@ successfully" 613 $(s)echo 614 615.PHONY: $(1) 616ifeq ($(DISABLE_BIN_GENERATION),1) 617$(1): $(ELF) $(DUMP) 618else 619$(1): $(BIN) $(DUMP) 620endif 621 622all: $(1) 623 624ifeq ($(4),1) 625$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 626$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(ENC_BIN),$(3), \ 627 $(ENC_BIN))) 628else 629$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(BIN),$(3))) 630endif 631 632endef 633 634# Convert device tree source file names to matching blobs 635# $(1) = input dts 636define SOURCES_TO_DTBS 637 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 638endef 639 640# MAKE_DTB generate the Flattened device tree binary 641# $(1) = output directory 642# $(2) = input dts 643define MAKE_DTB 644 645# List of DTB file(s) to generate, based on DTS file basename list 646$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 647# List of the pre-compiled DTS file(s) 648$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 649# Dependencies of the pre-compiled DTS file(s) on its source and included files 650$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 651# Dependencies of the DT compilation on its pre-compiled DTS 652$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 653 654$(eval $(call MAKE_PRE,$(DPRE),$(2),$(DTSDEP),$(DTC_CPPFLAGS))) 655 656$(DOBJ): $(DPRE) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 657 $$(s)echo " DTC $$<" 658 $$(q)$($(ARCH)-dtc) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $$< 659 $$($$@-after) 660 661-include $(DTBDEP) 662-include $(DTSDEP) 663 664endef 665 666# MAKE_DTBS builds flattened device tree sources 667# $(1) = output directory 668# $(2) = list of flattened device tree source files 669define MAKE_DTBS 670 $(eval DOBJS := $(filter %.dts,$(2))) 671 $(eval REMAIN := $(filter-out %.dts,$(2))) 672 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 673 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 674 675dtbs: $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))) 676all: dtbs 677endef 678