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 setting CRYPTO_SUPPORT per component based on build flags 45# $(eval $(call set_crypto_support,NEED_AUTH,NEED_HASH)) 46# $(1) = NEED_AUTH, determines need for authentication verification support 47# $(2) = NEED_HASH, determines need for hash calculation support 48# CRYPTO_SUPPORT is set to 0 (default), 1 (authentication only), 2 (hash only), or 49# 3 (both) based on what support is required. 50define set_crypto_support 51 ifeq ($($1)-$($2),1-1) 52 CRYPTO_SUPPORT := 3 53 else ifeq ($($2),1) 54 CRYPTO_SUPPORT := 2 55 else ifeq ($($1),1) 56 CRYPTO_SUPPORT := 1 57 else 58 CRYPTO_SUPPORT := 0 59 endif 60endef 61 62# Convenience function for creating a build definition 63# $(call make_define,FOO) will have: 64# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 65make_define = -D$(1)$(if $($(1)),=$($(1))) 66 67# Convenience function for creating multiple build definitions 68# For BL1, BL1_CPPFLAGS += $(call make_defines,FOO BOO) 69make_defines = $(foreach def,$(1),$(call make_define,$(def))) 70 71# Convenience function for adding build definitions 72# $(eval $(call add_define,FOO)) will have: 73# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 74define add_define 75 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 76endef 77 78# Convenience function for addding multiple build definitions 79# $(eval $(call add_defines,FOO BOO)) 80define add_defines 81 $(foreach def,$1,$(eval $(call add_define,$(def)))) 82endef 83 84# Convenience function for adding build definitions 85# $(eval $(call add_define_val,FOO,BAR)) will have: 86# -DFOO=BAR 87define add_define_val 88 DEFINES += -D$(1)=$(2) 89endef 90 91# Convenience function for verifying option has a boolean value 92# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 93define assert_boolean 94 $(if $($(1)),,$(error $(1) must not be empty)) 95 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 96endef 97 98# Convenience function for verifying options have boolean values 99# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values 100define assert_booleans 101 $(foreach bool,$1,$(eval $(call assert_boolean,$(bool)))) 102endef 103 1040-9 := 0 1 2 3 4 5 6 7 8 9 105 106# Function to verify that a given option $(1) contains a numeric value 107define assert_numeric 108$(if $($(1)),,$(error $(1) must not be empty)) 109$(eval __numeric := $($(1))) 110$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 111$(if $(__numeric),$(error $(1) must be numeric)) 112endef 113 114# Convenience function for verifying options have numeric values 115# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values 116define assert_numerics 117 $(foreach num,$1,$(eval $(call assert_numeric,$(num)))) 118endef 119 120# Convenience function to check for a given linker option. A call to 121# $(call ld_option, --no-XYZ) will return --no-XYZ if supported by the linker, 122# prefixed appropriately for the linker in use 123ld_option = $(call toolchain-ld-option,$(ARCH),$(1)) 124 125# Convenience function to add a prefix to a linker flag if necessary. Useful 126# when the flag is known to be supported and it just needs to be prefixed 127# correctly. 128ld_prefix = $(toolchain-ld-prefix-$($(ARCH)-ld-id)) 129 130# Convenience function to check for a given compiler option. A call to 131# $(call cc_option, --no-XYZ) will return --no-XYZ if supported by the compiler 132# NOTE: consider assigning to an immediately expanded temporary variable before 133# assigning. This is because variables like TF_CFLAGS are recursively expanded 134# and assigning this directly will cause it to be expanded every time the 135# variable is used, potentially thrashing multicore performance. 136define cc_option 137 $(shell if $($(ARCH)-cc) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1; then echo $(1); fi ) 138endef 139 140# CREATE_SEQ is a recursive function to create sequence of numbers from 1 to 141# $(2) and assign the sequence to $(1) 142define CREATE_SEQ 143$(if $(word $(2), $($(1))),\ 144 $(eval $(1) += $(words $($(1))))\ 145 $(eval $(1) := $(filter-out 0,$($(1)))),\ 146 $(eval $(1) += $(words $($(1))))\ 147 $(call CREATE_SEQ,$(1),$(2))\ 148) 149endef 150 151# IMG_MAPFILE defines the output file describing the memory map corresponding 152# to a BL stage 153# $(1) = BL stage 154define IMG_MAPFILE 155 ${BUILD_DIR}/$(1).map 156endef 157 158# IMG_ELF defines the elf file corresponding to a BL stage 159# $(1) = BL stage 160define IMG_ELF 161 ${BUILD_DIR}/$(1).elf 162endef 163 164# IMG_DUMP defines the symbols dump file corresponding to a BL stage 165# $(1) = BL stage 166define IMG_DUMP 167 ${BUILD_DIR}/$(1).dump 168endef 169 170# IMG_BIN defines the default image file corresponding to a BL stage 171# $(1) = BL stage 172define IMG_BIN 173 ${BUILD_PLAT}/$(1).bin 174endef 175 176# IMG_ENC_BIN defines the default encrypted image file corresponding to a 177# BL stage 178# $(1) = BL stage 179define IMG_ENC_BIN 180 ${BUILD_PLAT}/$(1)_enc.bin 181endef 182 183# ENCRYPT_FW invokes enctool to encrypt firmware binary 184# $(1) = input firmware binary 185# $(2) = output encrypted firmware binary 186define ENCRYPT_FW 187$(2): $(1) enctool 188 $$(s)echo " ENC $$<" 189 $$(q)$$(ENCTOOL) $$(ENC_ARGS) -i $$< -o $$@ 190endef 191 192# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to 193# package a new payload and/or by cert_create to generate certificate. 194# Optionally, it adds the dependency on this payload 195# $(1) = payload filename (i.e. bl31.bin) 196# $(2) = command line option for the specified payload (i.e. --soc-fw) 197# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 198# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 199# $(5) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 200define TOOL_ADD_PAYLOAD 201ifneq ($(5),) 202 $(4)FIP_ARGS += $(2) $(5) 203 $(if $(3),$(4)CRT_DEPS += $(1)) 204else 205 $(4)FIP_ARGS += $(2) $(1) 206 $(if $(3),$(4)CRT_DEPS += $(3)) 207endif 208 $(if $(3),$(4)FIP_DEPS += $(3)) 209 $(4)CRT_ARGS += $(2) $(1) 210endef 211 212# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters 213# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined. 214# $(1) = image_type (scp_bl2, bl33, etc.) 215# $(2) = payload filepath (ex. build/fvp/release/bl31.bin) 216# $(3) = command line option for the specified payload (ex. --soc-fw) 217# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 218# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 219# $(6) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 220 221define TOOL_ADD_IMG_PAYLOAD 222 223$(eval PRE_TOOL_FILTER := $($(1)_PRE_TOOL_FILTER)) 224 225ifneq ($(PRE_TOOL_FILTER),) 226 227$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX)) 228 229$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2)) 230 231$(PROCESSED_PATH): $(4) 232 233$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5),$(6)) 234 235else 236$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5),$(6)) 237endif 238endef 239 240# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation 241# $(1) = parameter filename 242# $(2) = cert_create command line option for the specified parameter 243# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 244define CERT_ADD_CMD_OPT 245 $(3)CRT_ARGS += $(2) $(1) 246endef 247 248# TOOL_ADD_IMG allows the platform to specify an external image to be packed 249# in the FIP and/or for which certificate is generated. It also adds a 250# dependency on the image file, aborting the build if the file does not exist. 251# $(1) = image_type (scp_bl2, bl33, etc.) 252# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc) 253# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 254# $(4) = Image encryption flag (optional) (0, 1) 255# Example: 256# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) 257define TOOL_ADD_IMG 258 # Build option to specify the image filename (SCP_BL2, BL33, etc) 259 # This is the uppercase form of the first parameter 260 $(eval BL := $(call uppercase,$(1))) 261 $(eval _V := $(BL)) 262 263 # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also 264 # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the 265 # target ${BUILD_PLAT}/${$(3)FIP_NAME}. 266 $(eval check_$(1)_cmd := \ 267 $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \ 268 $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \ 269 ) 270 271 $(3)CRT_DEPS += check_$(1) 272 CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd) 273ifeq ($(4),1) 274 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 275 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 276 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 277 $(ENC_BIN)) 278else 279 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3)) 280endif 281 282.PHONY: check_$(1) 283check_$(1): 284 $(check_$(1)_cmd) 285endef 286 287# SELECT_OPENSSL_API_VERSION selects the OpenSSL API version to be used to 288# build the host tools by checking the version of OpenSSL located under 289# the path defined by the OPENSSL_DIR variable. It receives no parameters. 290define SELECT_OPENSSL_API_VERSION 291 # Set default value for USING_OPENSSL3 macro to 0 292 $(eval USING_OPENSSL3 = 0) 293 # Obtain the OpenSSL version for the build located under OPENSSL_DIR 294 $(eval OPENSSL_INFO := $(shell LD_LIBRARY_PATH=${OPENSSL_DIR}:${OPENSSL_DIR}/lib ${OPENSSL_BIN_PATH}/openssl version)) 295 $(eval OPENSSL_CURRENT_VER = $(word 2, ${OPENSSL_INFO})) 296 $(eval OPENSSL_CURRENT_VER_MAJOR = $(firstword $(subst ., ,$(OPENSSL_CURRENT_VER)))) 297 # If OpenSSL version is 3.x, then set USING_OPENSSL3 flag to 1 298 $(if $(filter 3,$(OPENSSL_CURRENT_VER_MAJOR)), $(eval USING_OPENSSL3 = 1)) 299endef 300 301################################################################################ 302# Generic image processing filters 303################################################################################ 304 305# GZIP 306define GZIP_RULE 307$(1): $(2) 308 $(s)echo " GZIP $$@" 309 $(q)gzip -n -f -9 $$< --stdout > $$@ 310endef 311 312GZIP_SUFFIX := .gz 313 314################################################################################ 315# Auxiliary macros to build TF images from sources 316################################################################################ 317 318MAKE_DEP = -Wp,-MD,$1 -MT $2 -MP 319 320# MAKE_TOOL_C builds a C source file and generates the dependency file 321# $(1) = output directory 322# $(2) = source file (%.c) 323# $(3) = lowercase name of the tool 324# $(4) = uppercase name of the tool 325define MAKE_TOOL_C 326 327$(eval SRC := $(2)) 328$(eval OBJ := $(patsubst %.c,$(1)/$(3)/%.o,$(SRC))) 329$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 330 331$(eval TOOL_DEFINES := $($(4)_DEFINES)) 332$(eval TOOL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 333$(eval TOOL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(TOOL_DEFINES)) $(addprefix -I,$(TOOL_INCLUDE_DIRS))) 334$(eval TOOL_CFLAGS := $($(4)_CFLAGS)) 335 336$(OBJ): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 337 $$(s)echo " HOSTCC $$<" 338 $$(q)$(host-cc) $$(HOSTCCFLAGS) $(TOOL_CPPFLAGS) $(TOOL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 339 340-include $(DEP) 341 342endef 343 344# MAKE_TOOL 345# $(1) = output directory 346# $(2) = lowercase name of the tool 347# $(3) = uppercase name of the tool 348define MAKE_TOOL 349$(eval SRCS := $($(3)_SOURCES)) 350$(eval OBJS := $(patsubst %.c,$(1)/$(2)/%.o,$(SRCS))) 351$(eval DST := $(1)/$(2)/$(2)$(.exe)) 352$(eval $(foreach src,$(SRCS),$(call MAKE_TOOL_C,$(1),$(src),$(2),$(3)))) 353 354$(DST): $(OBJS) $(filter-out %.d,$(MAKEFILE_LIST)) | $(1) 355 $$(s)echo " HOSTLD $$@" 356 $$(q)$(host-cc) $${OBJS} -o $$@ $($(3)_LDFLAGS) 357 $$(s)echo 358 $$(s)echo "Built $$@ successfully" 359 $$(s)echo 360 361all: $(DST) 362endef 363 364# MAKE_C_LIB builds a C source file and generates the dependency file 365# $(1) = output directory 366# $(2) = source file (%.c) 367# $(3) = library name 368# $(4) = uppercase name of the library 369define MAKE_C_LIB 370$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 371$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 372$(eval LIB := $(notdir $(1))) 373 374$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 375 $$(s)echo " CC $$<" 376 $$(q)$($(ARCH)-cc) $$(LIB$(4)_CFLAGS) $$(TF_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 377 378-include $(DEP) 379 380endef 381 382# MAKE_S_LIB builds an assembly source file and generates the dependency file 383# $(1) = output directory 384# $(2) = source file (%.S) 385# $(3) = library name 386# $(4) = uppercase name of the library 387define MAKE_S_LIB 388$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 389$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 390 391$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 392 $$(s)echo " AS $$<" 393 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 394 395-include $(DEP) 396 397endef 398 399 400# MAKE_C builds a C source file and generates the dependency file 401# $(1) = output directory 402# $(2) = source file (%.c) 403# $(3) = BL stage 404# $(4) = uppercase BL stage 405define MAKE_C 406 407$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 408$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 409 410$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 411$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 412$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 413$(eval BL_CFLAGS := $($(4)_CFLAGS)) 414 415$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 416 $$(s)echo " CC $$<" 417 $$(q)$($(ARCH)-cc) $$(LTO_CFLAGS) $$(TF_CFLAGS) $(BL_CPPFLAGS) $(BL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 418 419-include $(DEP) 420 421endef 422 423 424# MAKE_S builds an assembly source file and generates the dependency file 425# $(1) = output directory 426# $(2) = assembly file (%.S) 427# $(3) = BL stage 428# $(4) = uppercase BL stage 429define MAKE_S 430 431$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 432$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 433 434$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 435$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 436$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 437$(eval BL_ASFLAGS := $($(4)_ASFLAGS)) 438 439$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 440 $$(s)echo " AS $$<" 441 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(BL_CPPFLAGS) $(BL_ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 442 443-include $(DEP) 444 445endef 446 447# MAKE_PRE run the C preprocessor on a file 448# $(1) = output file 449# $(2) = list of input files 450# $(3) = dep file 451# $(4) = list of rule-specific flags to pass 452define MAKE_PRE 453$(eval OUT := $(1)) 454$(eval SRC := $(2)) 455$(eval DEP := $(3)) 456$(eval CUSTOM_FLAGS := $(4)) 457$(OUT): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 458 $$(s)echo " CPP $$<" 459 $$(q)$($(ARCH)-cpp) -E -P -x assembler-with-cpp $$(TF_CFLAGS) $(CUSTOM_FLAGS) $(call MAKE_DEP,$(DEP),$(OUT)) -o $$@ $$< 460endef 461 462# MAKE_LD generate the linker script using the C preprocessor 463# $(1) = output linker script 464# $(2) = input template 465# $(3) = BL stage 466# $(4) = uppercase BL stage 467define MAKE_LD 468 469$(eval DEP := $(1).d) 470 471$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 472$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 473$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 474$(eval FLAGS := -D__LINKER__ $(BL_CPPFLAGS)) 475 476$(eval $(call MAKE_PRE,$(1),$(2),$(DEP),$(FLAGS))) 477-include $(DEP) 478 479endef 480 481# MAKE_LIB_OBJS builds both C and assembly source files 482# $(1) = output directory 483# $(2) = list of source files 484# $(3) = name of the library 485# $(4) = uppercase name of the library 486define MAKE_LIB_OBJS 487 $(eval C_OBJS := $(filter %.c,$(2))) 488 $(eval REMAIN := $(filter-out %.c,$(2))) 489 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(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_LIB,$(1),$(obj),$(3),$(4)))) 494 495 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 496endef 497 498 499# MAKE_OBJS builds both C and assembly source files 500# $(1) = output directory 501# $(2) = list of source files (both C and assembly) 502# $(3) = BL stage 503# $(4) = uppercase BL stage 504define MAKE_OBJS 505 $(eval C_OBJS := $(filter %.c,$(2))) 506 $(eval REMAIN := $(filter-out %.c,$(2))) 507 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3),$(4)))) 508 509 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 510 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 511 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3),$(4)))) 512 513 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 514endef 515 516 517# NOTE: The line continuation '\' is required in the next define otherwise we 518# end up with a line-feed characer at the end of the last c filename. 519# Also bear this issue in mind if extending the list of supported filetypes. 520define SOURCES_TO_OBJS 521 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 522 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 523endef 524 525.PHONY: libraries 526 527# MAKE_LIB macro defines the targets and options to build each BL image. 528# Arguments: 529# $(1) = Library name 530define MAKE_LIB 531 $(eval BL := $(call uppercase,$(1))) 532 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 533 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 534 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 535 $(eval SOURCES := $(LIB$(BL)_SRCS)) 536 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 537 538$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 539 540libraries: ${LIB_DIR}/lib$(1).a 541ifeq ($($(ARCH)-ld-id),arm-link) 542LDPATHS = --userlibpath=${LIB_DIR} 543LDLIBS += --library=$(1) 544else 545LDPATHS = -L${LIB_DIR} 546LDLIBS += -l$(1) 547endif 548 549ifeq ($(USE_ROMLIB),1) 550LIBWRAPPER = -lwrappers 551endif 552 553all: ${LIB_DIR}/lib$(1).a 554 555${LIB_DIR}/lib$(1).a: $(OBJS) | $$$$(@D)/ 556 $$(s)echo " AR $$@" 557 $$(q)$($(ARCH)-ar) cr $$@ $$? 558endef 559 560# Generate the path to one or more preprocessed linker scripts given the paths 561# of their sources. 562# 563# Arguments: 564# $(1) = path to one or more linker script sources 565define linker_script_path 566 $(patsubst %.S,$(BUILD_DIR)/%,$(1)) 567endef 568 569# MAKE_BL macro defines the targets and options to build each BL image. 570# Arguments: 571# $(1) = BL stage 572# $(2) = FIP command line option (if empty, image will not be included in the FIP) 573# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 574# $(4) = BL encryption flag (optional) (0, 1) 575define MAKE_BL 576 $(eval BL := $(call uppercase,$(1))) 577 $(eval BUILD_DIR := ${BUILD_PLAT}/$(1)) 578 $(eval BL_SOURCES := $($(BL)_SOURCES)) 579 $(eval SOURCES := $(sort $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))) 580 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 581 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 582 $(eval ELF := $(call IMG_ELF,$(1))) 583 $(eval DUMP := $(call IMG_DUMP,$(1))) 584 $(eval BIN := $(call IMG_BIN,$(1))) 585 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 586 $(eval BL_LIBS := $($(BL)_LIBS)) 587 588 $(eval DEFAULT_LINKER_SCRIPT_SOURCE := $($(BL)_DEFAULT_LINKER_SCRIPT_SOURCE)) 589 $(eval DEFAULT_LINKER_SCRIPT := $(call linker_script_path,$(DEFAULT_LINKER_SCRIPT_SOURCE))) 590 591 $(eval LINKER_SCRIPT_SOURCES := $($(BL)_LINKER_SCRIPT_SOURCES)) 592 $(eval LINKER_SCRIPTS := $(call linker_script_path,$(LINKER_SCRIPT_SOURCES))) 593 $(eval GNU_LINKER_ARGS := $(call ld_prefix,-Map=$(MAPFILE)) $(foreach script,$(LINKER_SCRIPTS) $(DEFAULT_LINKER_SCRIPT), $(call ld_prefix,--script $(script)))) 594 595$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 596 597# Generate targets to preprocess each required linker script 598$(eval $(foreach source,$(DEFAULT_LINKER_SCRIPT_SOURCE) $(LINKER_SCRIPT_SOURCES), \ 599 $(call MAKE_LD,$(call linker_script_path,$(source)),$(source),$(1),$(BL)))) 600 601$(eval BL_LDFLAGS := $($(BL)_LDFLAGS)) 602 603ifeq ($(USE_ROMLIB),1) 604$(ELF): $(BUILD_PLAT)/romlib/romlib.bin | $$$$(@D)/ 605endif 606 607# MODULE_OBJS can be assigned by vendors with different compiled 608# object file path, and prebuilt object file path. 609$(eval OBJS += $(MODULE_OBJS)) 610 611$(ELF): $(OBJS) $(DEFAULT_LINKER_SCRIPT) $(LINKER_SCRIPTS) | $$$$(@D)/ libraries $(BL_LIBS) 612 $$(s)echo " LD $$@" 613ifeq ($($(ARCH)-ld-id),arm-link) 614 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=${1}_entrypoint \ 615 --predefine=$(call escape-shell,-D__LINKER__=$(__LINKER__)) \ 616 --predefine=$(call escape-shell,-DTF_CFLAGS=$(TF_CFLAGS)) \ 617 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/${1}.scat \ 618 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) $(OBJS) 619else 620 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) $(GNU_LINKER_ARGS) \ 621 $(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) 622endif 623ifeq ($(DISABLE_BIN_GENERATION),1) 624 $(s)echo 625 $(s)echo "Built $$@ successfully" 626 $(s)echo 627endif 628 629$(DUMP): $(ELF) | $$$$(@D)/ 630 $$(s)echo " OD $$@" 631 $$(q)$($(ARCH)-od) -dx $$< > $$@ 632 633$(BIN): $(ELF) | $$$$(@D)/ 634 $$(s)echo " BIN $$@" 635 $$(q)$($(ARCH)-oc) -O binary $$< $$@ 636 $(s)echo 637 $(s)echo "Built $$@ successfully" 638 $(s)echo 639 640.PHONY: $(1) 641ifeq ($(DISABLE_BIN_GENERATION),1) 642$(1): $(ELF) $(DUMP) 643else 644$(1): $(BIN) $(DUMP) 645endif 646 647all: $(1) 648 649ifeq ($(4),1) 650$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 651$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(ENC_BIN),$(3), \ 652 $(ENC_BIN))) 653else 654$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(BIN),$(3))) 655endif 656 657endef 658 659# Convert device tree source file names to matching blobs 660# $(1) = input dts 661define SOURCES_TO_DTBS 662 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 663endef 664 665# MAKE_DTB generate the Flattened device tree binary 666# $(1) = output directory 667# $(2) = input dts 668define MAKE_DTB 669 670# List of DTB file(s) to generate, based on DTS file basename list 671$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 672# List of the pre-compiled DTS file(s) 673$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 674# Dependencies of the pre-compiled DTS file(s) on its source and included files 675$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 676# Dependencies of the DT compilation on its pre-compiled DTS 677$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 678 679$(eval $(call MAKE_PRE,$(DPRE),$(2),$(DTSDEP),$(DTC_CPPFLAGS))) 680 681$(DOBJ): $(DPRE) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 682 $$(s)echo " DTC $$<" 683 $$(q)$($(ARCH)-dtc) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $$< 684 $$($$@-after) 685 686-include $(DTBDEP) 687-include $(DTSDEP) 688 689endef 690 691# MAKE_DTBS builds flattened device tree sources 692# $(1) = output directory 693# $(2) = list of flattened device tree source files 694define MAKE_DTBS 695 $(eval DOBJS := $(filter %.dts,$(2))) 696 $(eval REMAIN := $(filter-out %.dts,$(2))) 697 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 698 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 699 700dtbs: $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))) 701all: dtbs 702endef 703