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 creating a build definition 45# $(call make_define,FOO) will have: 46# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 47make_define = -D$(1)$(if $($(1)),=$($(1))) 48 49# Convenience function for creating multiple build definitions 50# For BL1, BL1_CPPFLAGS += $(call make_defines,FOO BOO) 51make_defines = $(foreach def,$(1),$(call make_define,$(def))) 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 $($(1)),,$(error $(1) must not be empty)) 77 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 78endef 79 80# Convenience function for verifying options have boolean values 81# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values 82define assert_booleans 83 $(foreach bool,$1,$(eval $(call assert_boolean,$(bool)))) 84endef 85 860-9 := 0 1 2 3 4 5 6 7 8 9 87 88# Function to verify that a given option $(1) contains a numeric value 89define assert_numeric 90$(if $($(1)),,$(error $(1) must not be empty)) 91$(eval __numeric := $($(1))) 92$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 93$(if $(__numeric),$(error $(1) must be numeric)) 94endef 95 96# Convenience function for verifying options have numeric values 97# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values 98define assert_numerics 99 $(foreach num,$1,$(eval $(call assert_numeric,$(num)))) 100endef 101 102# Convenience function to check for a given linker option. A call to 103# $(call ld_option, --no-XYZ) will return --no-XYZ if supported by the linker, 104# prefixed appropriately for the linker in use 105ld_option = $(call toolchain-ld-option,$(ARCH),$(1)) 106 107# Convenience function to add a prefix to a linker flag if necessary. Useful 108# when the flag is known to be supported and it just needs to be prefixed 109# correctly. 110ld_prefix = $(toolchain-ld-prefix-$($(ARCH)-ld-id)) 111 112# Convenience function to check for a given compiler option. A call to 113# $(call cc_option, --no-XYZ) will return --no-XYZ if supported by the compiler 114# NOTE: consider assigning to an immediately expanded temporary variable before 115# assigning. This is because variables like TF_CFLAGS are recursively expanded 116# and assigning this directly will cause it to be expanded every time the 117# variable is used, potentially thrashing multicore performance. 118define cc_option 119 $(shell if $($(ARCH)-cc) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1; then echo $(1); fi ) 120endef 121 122# CREATE_SEQ is a recursive function to create sequence of numbers from 1 to 123# $(2) and assign the sequence to $(1) 124define CREATE_SEQ 125$(if $(word $(2), $($(1))),\ 126 $(eval $(1) += $(words $($(1))))\ 127 $(eval $(1) := $(filter-out 0,$($(1)))),\ 128 $(eval $(1) += $(words $($(1))))\ 129 $(call CREATE_SEQ,$(1),$(2))\ 130) 131endef 132 133# IMG_MAPFILE defines the output file describing the memory map corresponding 134# to a BL stage 135# $(1) = BL stage 136define IMG_MAPFILE 137 ${BUILD_DIR}/$(1).map 138endef 139 140# IMG_ELF defines the elf file corresponding to a BL stage 141# $(1) = BL stage 142define IMG_ELF 143 ${BUILD_DIR}/$(1).elf 144endef 145 146# IMG_DUMP defines the symbols dump file corresponding to a BL stage 147# $(1) = BL stage 148define IMG_DUMP 149 ${BUILD_DIR}/$(1).dump 150endef 151 152# IMG_BIN defines the default image file corresponding to a BL stage 153# $(1) = BL stage 154define IMG_BIN 155 ${BUILD_PLAT}/$(1).bin 156endef 157 158# IMG_ENC_BIN defines the default encrypted image file corresponding to a 159# BL stage 160# $(1) = BL stage 161define IMG_ENC_BIN 162 ${BUILD_PLAT}/$(1)_enc.bin 163endef 164 165# ENCRYPT_FW invokes enctool to encrypt firmware binary 166# $(1) = input firmware binary 167# $(2) = output encrypted firmware binary 168define ENCRYPT_FW 169$(2): $(1) enctool 170 $$(s)echo " ENC $$<" 171 $$(q)$$(ENCTOOL) $$(ENC_ARGS) -i $$< -o $$@ 172endef 173 174# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to 175# package a new payload and/or by cert_create to generate certificate. 176# Optionally, it adds the dependency on this payload 177# $(1) = payload filename (i.e. bl31.bin) 178# $(2) = command line option for the specified payload (i.e. --soc-fw) 179# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 180# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 181# $(5) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 182define TOOL_ADD_PAYLOAD 183ifneq ($(5),) 184 $(4)FIP_ARGS += $(2) $(5) 185 $(if $(3),$(4)CRT_DEPS += $(1)) 186else 187 $(4)FIP_ARGS += $(2) $(1) 188 $(if $(3),$(4)CRT_DEPS += $(3)) 189endif 190 $(if $(3),$(4)FIP_DEPS += $(3)) 191 $(4)CRT_ARGS += $(2) $(1) 192endef 193 194# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters 195# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined. 196# $(1) = image_type (scp_bl2, bl33, etc.) 197# $(2) = payload filepath (ex. build/fvp/release/bl31.bin) 198# $(3) = command line option for the specified payload (ex. --soc-fw) 199# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 200# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 201# $(6) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 202 203define TOOL_ADD_IMG_PAYLOAD 204 205$(eval PRE_TOOL_FILTER := $($(1)_PRE_TOOL_FILTER)) 206 207ifneq ($(PRE_TOOL_FILTER),) 208 209$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX)) 210 211$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2)) 212 213$(PROCESSED_PATH): $(4) 214 215$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5),$(6)) 216 217else 218$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5),$(6)) 219endif 220endef 221 222# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation 223# $(1) = parameter filename 224# $(2) = cert_create command line option for the specified parameter 225# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 226define CERT_ADD_CMD_OPT 227 $(3)CRT_ARGS += $(2) $(1) 228endef 229 230# TOOL_ADD_IMG allows the platform to specify an external image to be packed 231# in the FIP and/or for which certificate is generated. It also adds a 232# dependency on the image file, aborting the build if the file does not exist. 233# $(1) = image_type (scp_bl2, bl33, etc.) 234# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc) 235# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 236# $(4) = Image encryption flag (optional) (0, 1) 237# Example: 238# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) 239define TOOL_ADD_IMG 240 # Build option to specify the image filename (SCP_BL2, BL33, etc) 241 # This is the uppercase form of the first parameter 242 $(eval BL := $(call uppercase,$(1))) 243 $(eval _V := $(BL)) 244 245 # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also 246 # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the 247 # target ${BUILD_PLAT}/${$(3)FIP_NAME}. 248 $(eval check_$(1)_cmd := \ 249 $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \ 250 $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \ 251 ) 252 253 $(3)CRT_DEPS += check_$(1) 254 CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd) 255ifeq ($(4),1) 256 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 257 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 258 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 259 $(ENC_BIN)) 260else 261 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3)) 262endif 263 264.PHONY: check_$(1) 265check_$(1): 266 $(check_$(1)_cmd) 267endef 268 269# SELECT_OPENSSL_API_VERSION selects the OpenSSL API version to be used to 270# build the host tools by checking the version of OpenSSL located under 271# the path defined by the OPENSSL_DIR variable. It receives no parameters. 272define SELECT_OPENSSL_API_VERSION 273 # Set default value for USING_OPENSSL3 macro to 0 274 $(eval USING_OPENSSL3 = 0) 275 # Obtain the OpenSSL version for the build located under OPENSSL_DIR 276 $(eval OPENSSL_INFO := $(shell LD_LIBRARY_PATH=${OPENSSL_DIR}:${OPENSSL_DIR}/lib ${OPENSSL_BIN_PATH}/openssl version)) 277 $(eval OPENSSL_CURRENT_VER = $(word 2, ${OPENSSL_INFO})) 278 $(eval OPENSSL_CURRENT_VER_MAJOR = $(firstword $(subst ., ,$(OPENSSL_CURRENT_VER)))) 279 # If OpenSSL version is 3.x, then set USING_OPENSSL3 flag to 1 280 $(if $(filter 3,$(OPENSSL_CURRENT_VER_MAJOR)), $(eval USING_OPENSSL3 = 1)) 281endef 282 283################################################################################ 284# Generic image processing filters 285################################################################################ 286 287# GZIP 288define GZIP_RULE 289$(1): $(2) 290 $(s)echo " GZIP $$@" 291 $(q)gzip -n -f -9 $$< --stdout > $$@ 292endef 293 294GZIP_SUFFIX := .gz 295 296################################################################################ 297# Auxiliary macros to build TF images from sources 298################################################################################ 299 300MAKE_DEP = -Wp,-MD,$1 -MT $2 -MP 301 302# MAKE_TOOL_C builds a C source file and generates the dependency file 303# $(1) = output directory 304# $(2) = source file (%.c) 305# $(3) = lowercase name of the tool 306# $(4) = uppercase name of the tool 307define MAKE_TOOL_C 308 309$(eval SRC := $(2)) 310$(eval OBJ := $(patsubst %.c,$(1)/$(3)/%.o,$(SRC))) 311$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 312 313$(eval TOOL_DEFINES := $($(4)_DEFINES)) 314$(eval TOOL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 315$(eval TOOL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(TOOL_DEFINES)) $(addprefix -I,$(TOOL_INCLUDE_DIRS))) 316$(eval TOOL_CFLAGS := $($(4)_CFLAGS)) 317 318$(OBJ): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 319 $$(s)echo " HOSTCC $$<" 320 $$(q)$(host-cc) $$(HOSTCCFLAGS) $(TOOL_CPPFLAGS) $(TOOL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 321 322-include $(DEP) 323 324endef 325 326# MAKE_TOOL 327# $(1) = output directory 328# $(2) = lowercase name of the tool 329# $(3) = uppercase name of the tool 330define MAKE_TOOL 331$(eval SRCS := $($(3)_SOURCES)) 332$(eval OBJS := $(patsubst %.c,$(1)/$(2)/%.o,$(SRCS))) 333$(eval DST := $(1)/$(2)/$(2)$(.exe)) 334$(eval $(foreach src,$(SRCS),$(call MAKE_TOOL_C,$(1),$(src),$(2),$(3)))) 335 336$(DST): $(OBJS) $(filter-out %.d,$(MAKEFILE_LIST)) | $(1) 337 $$(s)echo " HOSTLD $$@" 338 $$(q)$(host-cc) $${OBJS} -o $$@ $($(3)_LDFLAGS) 339 $$(s)echo 340 $$(s)echo "Built $$@ successfully" 341 $$(s)echo 342 343all: $(DST) 344endef 345 346# MAKE_C_LIB builds a C source file and generates the dependency file 347# $(1) = output directory 348# $(2) = source file (%.c) 349# $(3) = library name 350# $(4) = uppercase name of the library 351define MAKE_C_LIB 352$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 353$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 354$(eval LIB := $(notdir $(1))) 355 356$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 357 $$(s)echo " CC $$<" 358 $$(q)$($(ARCH)-cc) $$(LIB$(4)_CFLAGS) $$(TF_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 359 360-include $(DEP) 361 362endef 363 364# MAKE_S_LIB builds an assembly source file and generates the dependency file 365# $(1) = output directory 366# $(2) = source file (%.S) 367# $(3) = library name 368# $(4) = uppercase name of the library 369define MAKE_S_LIB 370$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 371$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 372 373$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 374 $$(s)echo " AS $$<" 375 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 376 377-include $(DEP) 378 379endef 380 381 382# MAKE_C builds a C source file and generates the dependency file 383# $(1) = output directory 384# $(2) = source file (%.c) 385# $(3) = BL stage 386# $(4) = uppercase BL stage 387define MAKE_C 388 389$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 390$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 391 392$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 393$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 394$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 395$(eval BL_CFLAGS := $($(4)_CFLAGS)) 396 397$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 398 $$(s)echo " CC $$<" 399 $$(q)$($(ARCH)-cc) $$(LTO_CFLAGS) $$(TF_CFLAGS) $(BL_CPPFLAGS) $(BL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 400 401-include $(DEP) 402 403endef 404 405 406# MAKE_S builds an assembly source file and generates the dependency file 407# $(1) = output directory 408# $(2) = assembly file (%.S) 409# $(3) = BL stage 410# $(4) = uppercase BL stage 411define MAKE_S 412 413$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 414$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 415 416$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 417$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 418$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 419$(eval BL_ASFLAGS := $($(4)_ASFLAGS)) 420 421$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 422 $$(s)echo " AS $$<" 423 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(BL_CPPFLAGS) $(BL_ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 424 425-include $(DEP) 426 427endef 428 429# MAKE_PRE run the C preprocessor on a file 430# $(1) = output file 431# $(2) = list of input files 432# $(3) = dep file 433# $(4) = list of rule-specific flags to pass 434define MAKE_PRE 435$(eval OUT := $(1)) 436$(eval SRC := $(2)) 437$(eval DEP := $(3)) 438$(eval CUSTOM_FLAGS := $(4)) 439$(OUT): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 440 $$(s)echo " CPP $$<" 441 $$(q)$($(ARCH)-cpp) -E -P -x assembler-with-cpp $$(TF_CFLAGS) $(CUSTOM_FLAGS) $(call MAKE_DEP,$(DEP),$(OUT)) -o $$@ $$< 442endef 443 444# MAKE_LD generate the linker script using the C preprocessor 445# $(1) = output linker script 446# $(2) = input template 447# $(3) = BL stage 448# $(4) = uppercase BL stage 449define MAKE_LD 450 451$(eval DEP := $(1).d) 452 453$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 454$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 455$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 456$(eval FLAGS := -D__LINKER__ $(BL_CPPFLAGS)) 457 458$(eval $(call MAKE_PRE,$(1),$(2),$(DEP),$(FLAGS))) 459-include $(DEP) 460 461endef 462 463# MAKE_LIB_OBJS builds both C and assembly source files 464# $(1) = output directory 465# $(2) = list of source files 466# $(3) = name of the library 467# $(4) = uppercase name of the library 468define MAKE_LIB_OBJS 469 $(eval C_OBJS := $(filter %.c,$(2))) 470 $(eval REMAIN := $(filter-out %.c,$(2))) 471 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(1),$(obj),$(3),$(4)))) 472 473 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 474 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 475 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S_LIB,$(1),$(obj),$(3),$(4)))) 476 477 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 478endef 479 480 481# MAKE_OBJS builds both C and assembly source files 482# $(1) = output directory 483# $(2) = list of source files (both C and assembly) 484# $(3) = BL stage 485# $(4) = uppercase BL stage 486define MAKE_OBJS 487 $(eval C_OBJS := $(filter %.c,$(2))) 488 $(eval REMAIN := $(filter-out %.c,$(2))) 489 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3),$(4)))) 490 491 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 492 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 493 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3),$(4)))) 494 495 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 496endef 497 498 499# NOTE: The line continuation '\' is required in the next define otherwise we 500# end up with a line-feed characer at the end of the last c filename. 501# Also bear this issue in mind if extending the list of supported filetypes. 502define SOURCES_TO_OBJS 503 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 504 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 505endef 506 507.PHONY: libraries 508 509# MAKE_LIB macro defines the targets and options to build each BL image. 510# Arguments: 511# $(1) = Library name 512define MAKE_LIB 513 $(eval BL := $(call uppercase,$(1))) 514 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 515 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 516 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 517 $(eval SOURCES := $(LIB$(BL)_SRCS)) 518 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 519 520$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 521 522libraries: ${LIB_DIR}/lib$(1).a 523ifeq ($($(ARCH)-ld-id),arm-link) 524LDPATHS = --userlibpath=${LIB_DIR} 525LDLIBS += --library=$(1) 526else 527LDPATHS = -L${LIB_DIR} 528LDLIBS += -l$(1) 529endif 530 531ifeq ($(USE_ROMLIB),1) 532LIBWRAPPER = -lwrappers 533endif 534 535all: ${LIB_DIR}/lib$(1).a 536 537${LIB_DIR}/lib$(1).a: $(OBJS) | $$$$(@D)/ 538 $$(s)echo " AR $$@" 539 $$(q)$($(ARCH)-ar) cr $$@ $$? 540endef 541 542# Generate the path to one or more preprocessed linker scripts given the paths 543# of their sources. 544# 545# Arguments: 546# $(1) = path to one or more linker script sources 547define linker_script_path 548 $(patsubst %.S,$(BUILD_DIR)/%,$(1)) 549endef 550 551# MAKE_BL macro defines the targets and options to build each BL image. 552# Arguments: 553# $(1) = BL stage 554# $(2) = FIP command line option (if empty, image will not be included in the FIP) 555# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 556# $(4) = BL encryption flag (optional) (0, 1) 557define MAKE_BL 558 $(eval BL := $(call uppercase,$(1))) 559 $(eval BUILD_DIR := ${BUILD_PLAT}/$(1)) 560 $(eval BL_SOURCES := $($(BL)_SOURCES)) 561 $(eval SOURCES := $(sort $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))) 562 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 563 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 564 $(eval ELF := $(call IMG_ELF,$(1))) 565 $(eval DUMP := $(call IMG_DUMP,$(1))) 566 $(eval BIN := $(call IMG_BIN,$(1))) 567 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 568 $(eval BL_LIBS := $($(BL)_LIBS)) 569 570 $(eval DEFAULT_LINKER_SCRIPT_SOURCE := $($(BL)_DEFAULT_LINKER_SCRIPT_SOURCE)) 571 $(eval DEFAULT_LINKER_SCRIPT := $(call linker_script_path,$(DEFAULT_LINKER_SCRIPT_SOURCE))) 572 573 $(eval LINKER_SCRIPT_SOURCES := $($(BL)_LINKER_SCRIPT_SOURCES)) 574 $(eval LINKER_SCRIPTS := $(call linker_script_path,$(LINKER_SCRIPT_SOURCES))) 575 $(eval GNU_LINKER_ARGS := $(call ld_prefix,-Map=$(MAPFILE)) $(foreach script,$(LINKER_SCRIPTS) $(DEFAULT_LINKER_SCRIPT), $(call ld_prefix,--script $(script)))) 576 577$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 578 579# Generate targets to preprocess each required linker script 580$(eval $(foreach source,$(DEFAULT_LINKER_SCRIPT_SOURCE) $(LINKER_SCRIPT_SOURCES), \ 581 $(call MAKE_LD,$(call linker_script_path,$(source)),$(source),$(1),$(BL)))) 582 583$(eval BL_LDFLAGS := $($(BL)_LDFLAGS)) 584 585ifeq ($(USE_ROMLIB),1) 586$(ELF): $(BUILD_PLAT)/romlib/romlib.bin | $$$$(@D)/ 587endif 588 589# MODULE_OBJS can be assigned by vendors with different compiled 590# object file path, and prebuilt object file path. 591$(eval OBJS += $(MODULE_OBJS)) 592 593$(ELF): $(OBJS) $(DEFAULT_LINKER_SCRIPT) $(LINKER_SCRIPTS) | $$$$(@D)/ libraries $(BL_LIBS) 594 $$(s)echo " LD $$@" 595ifeq ($($(ARCH)-ld-id),arm-link) 596 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=${1}_entrypoint \ 597 --predefine=$(call escape-shell,-D__LINKER__=$(__LINKER__)) \ 598 --predefine=$(call escape-shell,-DTF_CFLAGS=$(TF_CFLAGS)) \ 599 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/${1}.scat \ 600 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) $(OBJS) 601else 602 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) $(GNU_LINKER_ARGS) \ 603 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 604endif 605ifeq ($(DISABLE_BIN_GENERATION),1) 606 $(s)echo 607 $(s)echo "Built $$@ successfully" 608 $(s)echo 609endif 610 611$(DUMP): $(ELF) | $$$$(@D)/ 612 $$(s)echo " OD $$@" 613 $$(q)$($(ARCH)-od) -dx $$< > $$@ 614 615$(BIN): $(ELF) | $$$$(@D)/ 616 $$(s)echo " BIN $$@" 617 $$(q)$($(ARCH)-oc) -O binary $$< $$@ 618 $(s)echo 619 $(s)echo "Built $$@ successfully" 620 $(s)echo 621 622.PHONY: $(1) 623ifeq ($(DISABLE_BIN_GENERATION),1) 624$(1): $(ELF) $(DUMP) 625else 626$(1): $(BIN) $(DUMP) 627endif 628 629all: $(1) 630 631ifeq ($(4),1) 632$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 633$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(ENC_BIN),$(3), \ 634 $(ENC_BIN))) 635else 636$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(BIN),$(3))) 637endif 638 639endef 640 641# Convert device tree source file names to matching blobs 642# $(1) = input dts 643define SOURCES_TO_DTBS 644 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 645endef 646 647# MAKE_DTB generate the Flattened device tree binary 648# $(1) = output directory 649# $(2) = input dts 650define MAKE_DTB 651 652# List of DTB file(s) to generate, based on DTS file basename list 653$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 654# List of the pre-compiled DTS file(s) 655$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 656# Dependencies of the pre-compiled DTS file(s) on its source and included files 657$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 658# Dependencies of the DT compilation on its pre-compiled DTS 659$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 660 661$(eval $(call MAKE_PRE,$(DPRE),$(2),$(DTSDEP),$(DTC_CPPFLAGS))) 662 663$(DOBJ): $(DPRE) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 664 $$(s)echo " DTC $$<" 665 $$(q)$($(ARCH)-dtc) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $$< 666 $$($$@-after) 667 668-include $(DTBDEP) 669-include $(DTSDEP) 670 671endef 672 673# MAKE_DTBS builds flattened device tree sources 674# $(1) = output directory 675# $(2) = list of flattened device tree source files 676define MAKE_DTBS 677 $(eval DOBJS := $(filter %.dts,$(2))) 678 $(eval REMAIN := $(filter-out %.dts,$(2))) 679 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 680 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 681 682dtbs: $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))) 683all: dtbs 684endef 685