1# 2# Copyright (c) 2015-2026, 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 list of variables to 1 if not set on the 33# commandline 34# $(eval $(call set_ones,FOO BAR)) 35define set_ones 36 $(foreach var,$1,$(eval $(var) := 1)) 37endef 38 39# Convenience function for setting CRYPTO_SUPPORT per component based on build flags 40# and set MBEDTLS_LIB based on CRYPTO_SUPPORT 41# $(eval $(call set_crypto_support,NEED_AUTH,NEED_HASH)) 42# $(1) = NEED_AUTH, determines need for authentication verification support 43# $(2) = NEED_HASH, determines need for hash calculation support 44# CRYPTO_SUPPORT is set to 0 (default), 1 (authentication only), 2 (hash only), or 45# 3 (both) based on what support is required. 46define set_crypto_support 47 ifeq ($($1)-$($2),1-1) 48 CRYPTO_SUPPORT := 3 49 else ifeq ($($2),1) 50 CRYPTO_SUPPORT := 2 51 else ifeq ($($1),1) 52 CRYPTO_SUPPORT := 1 53 else 54 CRYPTO_SUPPORT := 0 55 endif 56 MBEDTLS_LIB ?= $(BUILD_PLAT)/lib/libmbedtls.a 57 CRYPTO_LIB := $(if $(filter-out 0,$(CRYPTO_SUPPORT)),$(MBEDTLS_LIB),) 58endef 59 60# Convenience function for creating a build definition 61# $(call make_define,FOO) will have: 62# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 63make_define = -D$(1)$(if $($(1)),=$($(1))) 64 65# Convenience function for creating multiple build definitions 66# For BL1, BL1_CPPFLAGS += $(call make_defines,FOO BOO) 67make_defines = $(foreach def,$(1),$(call make_define,$(def))) 68 69# Convenience function for adding build definitions 70# $(eval $(call add_define,FOO)) will have: 71# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 72define add_define 73 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 74endef 75 76# Convenience function for addding multiple build definitions 77# $(eval $(call add_defines,FOO BOO)) 78define add_defines 79 $(foreach def,$1,$(eval $(call add_define,$(def)))) 80endef 81 82# Convenience function for adding build definitions 83# $(eval $(call add_define_val,FOO,BAR)) will have: 84# -DFOO=BAR 85define add_define_val 86 DEFINES += -D$(1)=$(2) 87endef 88 89# Convenience function for verifying option has a boolean value 90# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 91define assert_boolean 92 $(if $($(1)),,$(error $(1) must not be empty)) 93 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean)) 94endef 95 96# Convenience function for verifying options have boolean values 97# $(eval $(call assert_booleans,FOO BOO)) will assert FOO and BOO for 0 or 1 values 98define assert_booleans 99 $(foreach bool,$1,$(eval $(call assert_boolean,$(bool)))) 100endef 101 1020-9 := 0 1 2 3 4 5 6 7 8 9 103 104# Function to verify that a given option $(1) contains a numeric value 105define assert_numeric 106$(if $($(1)),,$(error $(1) must not be empty)) 107$(eval __numeric := $($(1))) 108$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric)))) 109$(if $(__numeric),$(error $(1) must be numeric)) 110endef 111 112# Convenience function for verifying options have numeric values 113# $(eval $(call assert_numerics,FOO BOO)) will assert FOO and BOO contain numeric values 114define assert_numerics 115 $(foreach num,$1,$(eval $(call assert_numeric,$(num)))) 116endef 117 118# Convenience function to check for a given linker option. A call to 119# $(call ld_option, --no-XYZ) will return --no-XYZ if supported by the linker, 120# prefixed appropriately for the linker in use 121ld_option = $(call toolchain-ld-option,$(ARCH),$(1)) 122 123# Convenience function to add a prefix to a linker flag if necessary. Useful 124# when the flag is known to be supported and it just needs to be prefixed 125# correctly. 126ld_prefix = $(toolchain-ld-prefix-$($(ARCH)-ld-id)) 127 128# Convenience function to check for a given compiler option. A call to 129# $(call cc_option, --no-XYZ) will return --no-XYZ if supported by the compiler 130# NOTE: consider assigning to an immediately expanded temporary variable before 131# assigning. This is because variables like TF_CFLAGS are recursively expanded 132# and assigning this directly will cause it to be expanded every time the 133# variable is used, potentially thrashing multicore performance. 134define cc_option 135 $(shell if $($(ARCH)-cc) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1; then echo $(1); fi ) 136endef 137 138# CREATE_SEQ is a recursive function to create sequence of numbers from 1 to 139# $(2) and assign the sequence to $(1) 140define CREATE_SEQ 141$(if $(word $(2), $($(1))),\ 142 $(eval $(1) += $(words $($(1))))\ 143 $(eval $(1) := $(filter-out 0,$($(1)))),\ 144 $(eval $(1) += $(words $($(1))))\ 145 $(call CREATE_SEQ,$(1),$(2))\ 146) 147endef 148 149# IMG_MAPFILE defines the output file describing the memory map corresponding 150# to a BL stage 151# $(1) = BL stage 152define IMG_MAPFILE 153 ${BUILD_DIR}/$(1).map 154endef 155 156# IMG_ELF defines the elf file corresponding to a BL stage 157# $(1) = BL stage 158define IMG_ELF 159 ${BUILD_DIR}/$(1).elf 160endef 161 162# IMG_DUMP defines the symbols dump file corresponding to a BL stage 163# $(1) = BL stage 164define IMG_DUMP 165 ${BUILD_DIR}/$(1).dump 166endef 167 168# IMG_BIN defines the default image file corresponding to a BL stage 169# $(1) = BL stage 170define IMG_BIN 171 ${BUILD_PLAT}/$(1).bin 172endef 173 174# IMG_ENC_BIN defines the default encrypted image file corresponding to a 175# BL stage 176# $(1) = BL stage 177define IMG_ENC_BIN 178 ${BUILD_PLAT}/$(1)_enc.bin 179endef 180 181# ENCRYPT_FW invokes enctool to encrypt firmware binary 182# $(1) = input firmware binary 183# $(2) = output encrypted firmware binary 184define ENCRYPT_FW 185$(2): $(1) enctool 186 $$(s)echo " ENC $$<" 187 $$(q)$$(ENCTOOL) $$(ENC_ARGS) -i $$< -o $$@ 188endef 189 190# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to 191# package a new payload and/or by cert_create to generate certificate. 192# Optionally, it adds the dependency on this payload 193# $(1) = payload filename (i.e. bl31.bin) 194# $(2) = command line option for the specified payload (i.e. --soc-fw) 195# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 196# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 197# $(5) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 198define TOOL_ADD_PAYLOAD 199ifneq ($(5),) 200 $(4)FIP_ARGS += $(2) $(5) 201 $(if $(3),$(4)CRT_DEPS += $(1)) 202else 203 $(4)FIP_ARGS += $(2) $(1) 204 $(if $(3),$(4)CRT_DEPS += $(3)) 205endif 206 $(if $(3),$(4)FIP_DEPS += $(3)) 207 $(4)CRT_ARGS += $(2) $(1) 208endef 209 210# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters 211# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined. 212# $(1) = image_type (scp_bl2, bl33, etc.) 213# $(2) = payload filepath (ex. build/fvp/release/bl31.bin) 214# $(3) = command line option for the specified payload (ex. --soc-fw) 215# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin) 216# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 217# $(6) = encrypted payload (optional) (ex. build/fvp/release/bl31_enc.bin) 218 219define TOOL_ADD_IMG_PAYLOAD 220 221$(eval PRE_TOOL_FILTER := $($(1)_PRE_TOOL_FILTER)) 222 223ifneq ($(PRE_TOOL_FILTER),) 224 225$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX)) 226 227$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2)) 228 229$(PROCESSED_PATH): $(4) 230 231$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5),$(6)) 232 233else 234$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5),$(6)) 235endif 236endef 237 238# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation 239# $(1) = parameter filename 240# $(2) = cert_create command line option for the specified parameter 241# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 242define CERT_ADD_CMD_OPT 243 $(3)CRT_ARGS += $(2) $(1) 244endef 245 246# TOOL_ADD_IMG allows the platform to specify an external image to be packed 247# in the FIP and/or for which certificate is generated. It also adds a 248# dependency on the image file, aborting the build if the file does not exist. 249# $(1) = image_type (scp_bl2, bl33, etc.) 250# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc) 251# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 252# $(4) = Image encryption flag (optional) (0, 1) 253# Example: 254# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) 255define TOOL_ADD_IMG 256 # Build option to specify the image filename (SCP_BL2, BL33, etc) 257 # This is the uppercase form of the first parameter 258 $(eval BL := $(call uppercase,$(1))) 259 $(eval _V := $(BL)) 260 261 # $(check_$(1)_cmd) variable is executed in the check_$(1) target and also 262 # is put into the ${CHECK_$(3)FIP_CMD} variable which is executed by the 263 # target ${BUILD_PLAT}/${$(3)FIP_NAME}. 264 $(eval check_$(1)_cmd := \ 265 $(if $(value $(_V)),,$$$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file")) \ 266 $(if $(wildcard $(value $(_V))),,$$$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist)) \ 267 ) 268 269 $(3)CRT_DEPS += check_$(1) 270 CHECK_$(3)FIP_CMD += $$(check_$(1)_cmd) 271ifeq ($(4),1) 272 $(eval ENC_BIN := ${BUILD_PLAT}/$(1)_enc.bin) 273 $(call ENCRYPT_FW,$(value $(_V)),$(ENC_BIN)) 274 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(ENC_BIN),$(3), \ 275 $(ENC_BIN)) 276else 277 $(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(value $(_V)),$(2),$(if $(wildcard $(value $(_V))),$(value $(_V)),FORCE),$(3)) 278endif 279 280.PHONY: check_$(1) 281check_$(1): 282 $(check_$(1)_cmd) 283endef 284 285# SELECT_OPENSSL_API_VERSION selects the OpenSSL API version to be used to 286# build the host tools by checking the version of OpenSSL located under 287# the path defined by the OPENSSL_DIR variable. It receives no parameters. 288define SELECT_OPENSSL_API_VERSION 289 # Set default value for USING_OPENSSL3 macro to 0 290 $(eval USING_OPENSSL3 = 0) 291 # Obtain the OpenSSL version for the build located under OPENSSL_DIR 292 $(eval OPENSSL_INFO := $(shell LD_LIBRARY_PATH=${OPENSSL_DIR}:${OPENSSL_DIR}/lib ${OPENSSL_BIN_PATH}/openssl version)) 293 $(eval OPENSSL_CURRENT_VER = $(word 2, ${OPENSSL_INFO})) 294 $(eval OPENSSL_CURRENT_VER_MAJOR = $(firstword $(subst ., ,$(OPENSSL_CURRENT_VER)))) 295 # If OpenSSL version is 3.x, then set USING_OPENSSL3 flag to 1 296 $(if $(filter 3,$(OPENSSL_CURRENT_VER_MAJOR)), $(eval USING_OPENSSL3 = 1)) 297endef 298 299################################################################################ 300# Generic image processing filters 301################################################################################ 302 303# GZIP 304define GZIP_RULE 305$(1): $(2) 306 $(s)echo " GZIP $$@" 307 $(q)gzip -n -f -9 $$< --stdout > $$@ 308endef 309 310GZIP_SUFFIX := .gz 311 312################################################################################ 313# Auxiliary macros to build TF images from sources 314################################################################################ 315 316MAKE_DEP = -Wp,-MD,$1 -MT $2 -MP 317 318# MAKE_TOOL_C builds a C source file and generates the dependency file 319# $(1) = output directory 320# $(2) = source file (%.c) 321# $(3) = lowercase name of the tool 322# $(4) = uppercase name of the tool 323define MAKE_TOOL_C 324 325$(eval SRC := $(2)) 326$(eval OBJ := $(patsubst %.c,$(1)/$(3)/%.o,$(SRC))) 327$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 328 329$(eval TOOL_DEFINES := $($(4)_DEFINES)) 330$(eval TOOL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 331$(eval TOOL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(TOOL_DEFINES)) $(addprefix -I,$(TOOL_INCLUDE_DIRS))) 332$(eval TOOL_CFLAGS := $($(4)_CFLAGS)) 333 334$(OBJ): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 335 $$(s)echo " HOSTCC $$<" 336 $$(q)$(host-cc) $$(HOSTCCFLAGS) $(TOOL_CPPFLAGS) $(TOOL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 337 338-include $(DEP) 339 340endef 341 342# MAKE_TOOL 343# $(1) = output directory 344# $(2) = lowercase name of the tool 345# $(3) = uppercase name of the tool 346define MAKE_TOOL 347$(eval SRCS := $($(3)_SOURCES)) 348$(eval OBJS := $(patsubst %.c,$(1)/$(2)/%.o,$(SRCS))) 349$(eval DST := $(1)/$(2)/$(2)$(.exe)) 350$(eval $(foreach src,$(SRCS),$(call MAKE_TOOL_C,$(1),$(src),$(2),$(3)))) 351 352$(DST): $(OBJS) $(filter-out %.d,$(MAKEFILE_LIST)) | $(1) 353 $$(s)echo " HOSTLD $$@" 354 $$(q)$(host-ld) $$(OBJS) -o $$@ $$(HOSTLDFLAGS) $($(3)_LDFLAGS) 355 $$(s)echo 356 $$(s)echo "Built $$@ successfully" 357 $$(s)echo 358 359all: $(DST) 360endef 361 362# MAKE_C_LIB builds a C source file and generates the dependency file 363# $(1) = output directory 364# $(2) = source file (%.c) 365# $(3) = library name 366# $(4) = uppercase name of the library 367# $(5) = optional list of cflags that needed to be removed 368define MAKE_C_LIB 369$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 370$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 371$(eval LIB := $(notdir $(1))) 372 373$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 374 $$(s)echo " CC $$<" 375 $$(q)$($(ARCH)-cc) $$(LIB$(4)_CFLAGS) $$(filter-out $(5),$$(TF_CFLAGS)) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 376 377-include $(DEP) 378 379endef 380 381# MAKE_S_LIB builds an assembly source file and generates the dependency file 382# $(1) = output directory 383# $(2) = source file (%.S) 384# $(3) = library name 385# $(4) = uppercase name of the library 386define MAKE_S_LIB 387$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 388$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 389 390$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 391 $$(s)echo " AS $$<" 392 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 393 394-include $(DEP) 395 396endef 397 398 399# MAKE_C builds a C source file and generates the dependency file 400# $(1) = output directory 401# $(2) = source file (%.c) 402# $(3) = BL stage 403# $(4) = uppercase BL stage 404define MAKE_C 405 406$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 407$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 408 409$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 410$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 411$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 412$(eval BL_CFLAGS := $($(4)_CFLAGS)) 413 414$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ $(BL_INCLUDE_DIRS:%=%/) 415 $$(s)echo " CC $$<" 416 $$(q)$($(ARCH)-cc) $$(LTO_CFLAGS) $$(TF_CFLAGS) $(BL_CPPFLAGS) $(BL_CFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 417 418-include $(DEP) 419 420endef 421 422 423# MAKE_S builds an assembly source file and generates the dependency file 424# $(1) = output directory 425# $(2) = assembly file (%.S) 426# $(3) = BL stage 427# $(4) = uppercase BL stage 428define MAKE_S 429 430$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 431$(eval DEP := $(patsubst %.o,%.d,$(OBJ))) 432 433$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 434$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 435$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 436$(eval BL_ASFLAGS := $($(4)_ASFLAGS)) 437 438$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ $(BL_INCLUDE_DIRS:%=%/) 439 $$(s)echo " AS $$<" 440 $$(q)$($(ARCH)-as) -x assembler-with-cpp $$(TF_CFLAGS) $$(ASFLAGS) $(BL_CPPFLAGS) $(BL_ASFLAGS) $(call MAKE_DEP,$(DEP),$(OBJ)) -c $$< -o $$@ 441 442-include $(DEP) 443 444endef 445 446# MAKE_PRE run the C preprocessor on a file 447# $(1) = output file 448# $(2) = list of input files 449# $(3) = dep file 450# $(4) = list of rule-specific flags to pass 451define MAKE_PRE 452$(eval OUT := $(1)) 453$(eval SRC := $(2)) 454$(eval DEP := $(3)) 455$(eval CUSTOM_FLAGS := $(4)) 456$(OUT): $(SRC) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 457 $$(s)echo " CPP $$<" 458 $$(q)$($(ARCH)-cpp) -E -P -x assembler-with-cpp $$(TF_CFLAGS) $(CUSTOM_FLAGS) $(call MAKE_DEP,$(DEP),$(OUT)) -o $$@ $$< 459endef 460 461# MAKE_LD generate the linker script using the C preprocessor 462# $(1) = output linker script 463# $(2) = input template 464# $(3) = BL stage 465# $(4) = uppercase BL stage 466define MAKE_LD 467 468$(eval DEP := $(1).d) 469 470$(eval BL_DEFINES := IMAGE_$(4) $($(4)_DEFINES)) 471$(eval BL_INCLUDE_DIRS := $($(4)_INCLUDE_DIRS)) 472$(eval BL_CPPFLAGS := $($(4)_CPPFLAGS) $(addprefix -D,$(BL_DEFINES)) $(addprefix -I,$(BL_INCLUDE_DIRS))) 473$(eval FLAGS := -D__LINKER__ $(BL_CPPFLAGS)) 474 475$(1): | $(BL_INCLUDE_DIRS:%=%/) 476 477$(eval $(call MAKE_PRE,$(1),$(2),$(DEP),$(FLAGS))) 478-include $(DEP) 479 480endef 481 482# MAKE_LIB_OBJS builds both C and assembly source files 483# $(1) = output directory 484# $(2) = list of source files 485# $(3) = name of the library 486# $(4) = uppercase name of the library 487# $(5) = optional list of cflags that needed to be removed 488define MAKE_LIB_OBJS 489 $(eval C_OBJS := $(filter %.c,$(2))) 490 $(eval REMAIN := $(filter-out %.c,$(2))) 491 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C_LIB,$(1),$(obj),$(3),$(4),$(5)))) 492 493 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 494 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 495 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S_LIB,$(1),$(obj),$(3),$(4)))) 496 497 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 498endef 499 500 501# MAKE_OBJS builds both C and assembly source files 502# $(1) = output directory 503# $(2) = list of source files (both C and assembly) 504# $(3) = BL stage 505# $(4) = uppercase BL stage 506define MAKE_OBJS 507 $(eval C_OBJS := $(filter %.c,$(2))) 508 $(eval REMAIN := $(filter-out %.c,$(2))) 509 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3),$(4)))) 510 511 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 512 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 513 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3),$(4)))) 514 515 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 516endef 517 518 519# NOTE: The line continuation '\' is required in the next define otherwise we 520# end up with a line-feed characer at the end of the last c filename. 521# Also bear this issue in mind if extending the list of supported filetypes. 522define SOURCES_TO_OBJS 523 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 524 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 525endef 526 527.PHONY: libraries 528 529# MAKE_LIB macro defines the targets and options to build each BL image. 530# Arguments: 531# $(1) = Library name 532# $(2) = Optinal list of cflags needed to removed 533define MAKE_LIB 534 $(eval BL := $(call uppercase,$(1))) 535 $(eval BUILD_DIR := ${BUILD_PLAT}/lib$(1)) 536 $(eval LIB_DIR := ${BUILD_PLAT}/lib) 537 $(eval ROMLIB_DIR := ${BUILD_PLAT}/romlib) 538 $(eval SOURCES := $(LIB$(BL)_SRCS)) 539 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 540 541$(eval $(call MAKE_LIB_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL),$(2))) 542 543libraries: ${LIB_DIR}/lib$(1).a 544ifeq ($($(ARCH)-ld-id),arm-link) 545LDPATHS = --userlibpath=${LIB_DIR} 546LDLIBS += --library=$(1) 547else 548LDPATHS = -L${LIB_DIR} 549LDLIBS += -l$(1) 550endif 551 552ifeq ($(USE_ROMLIB),1) 553LIBWRAPPER = -lwrappers 554endif 555 556all: ${LIB_DIR}/lib$(1).a 557 558${LIB_DIR}/lib$(1).a: $(OBJS) | $$$$(@D)/ 559 $$(s)echo " AR $$@" 560 $$(q)$($(ARCH)-ar) cr $$@ $$? 561endef 562 563# Generate the path to one or more preprocessed linker scripts given the paths 564# of their sources. 565# 566# Arguments: 567# $(1) = path to one or more linker script sources 568define linker_script_path 569 $(patsubst %.S,$(BUILD_DIR)/%,$(1)) 570endef 571 572# MAKE_BL macro defines the targets and options to build each BL image. 573# Arguments: 574# $(1) = BL stage 575# $(2) = FIP command line option (if empty, image will not be included in the FIP) 576# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip) 577# $(4) = BL encryption flag (optional) (0, 1) 578define MAKE_BL 579 $(eval BL := $(call uppercase,$(1))) 580 $(eval BUILD_DIR := ${BUILD_PLAT}/$(1)) 581 $(eval BL_SOURCES := $($(BL)_SOURCES)) 582 $(eval SOURCES := $(sort $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))) 583 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 584 $(eval MAPFILE := $(call IMG_MAPFILE,$(1))) 585 $(eval ELF := $(call IMG_ELF,$(1))) 586 $(eval DUMP := $(call IMG_DUMP,$(1))) 587 $(eval BIN := $(call IMG_BIN,$(1))) 588 $(eval ENC_BIN := $(call IMG_ENC_BIN,$(1))) 589 $(eval BL_LIBS := $($(BL)_LIBS)) 590 591 $(eval DEFAULT_LINKER_SCRIPT_SOURCE := $($(BL)_DEFAULT_LINKER_SCRIPT_SOURCE)) 592 $(eval DEFAULT_LINKER_SCRIPT := $(call linker_script_path,$(DEFAULT_LINKER_SCRIPT_SOURCE))) 593 594 $(eval LINKER_SCRIPT_SOURCES := $($(BL)_LINKER_SCRIPT_SOURCES)) 595 $(eval LINKER_SCRIPTS := $(call linker_script_path,$(LINKER_SCRIPT_SOURCES))) 596 $(eval GNU_LINKER_ARGS := $(call ld_prefix,-Map=$(MAPFILE)) $(foreach script,$(LINKER_SCRIPTS) $(DEFAULT_LINKER_SCRIPT), $(call ld_prefix,--script $(script)))) 597 598$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1),$(BL))) 599 600# Generate targets to preprocess each required linker script 601$(eval $(foreach source,$(DEFAULT_LINKER_SCRIPT_SOURCE) $(LINKER_SCRIPT_SOURCES), \ 602 $(call MAKE_LD,$(call linker_script_path,$(source)),$(source),$(1),$(BL)))) 603 604$(eval BL_LDFLAGS := $($(BL)_LDFLAGS)) 605 606ifeq ($(USE_ROMLIB),1) 607$(ELF): $(BUILD_PLAT)/romlib/romlib.bin | $$$$(@D)/ 608endif 609 610# MODULE_OBJS can be assigned by vendors with different compiled 611# object file path, and prebuilt object file path. 612$(eval OBJS += $(MODULE_OBJS)) 613 614$(ELF): $(OBJS) $(DEFAULT_LINKER_SCRIPT) $(LINKER_SCRIPTS) | $$$$(@D)/ libraries $(BL_LIBS) 615 $$(s)echo " LD $$@" 616ifeq ($($(ARCH)-ld-id),arm-link) 617 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) --entry=${1}_entrypoint \ 618 --predefine=$(call escape-shell,-D__LINKER__=$(__LINKER__)) \ 619 --predefine=$(call escape-shell,-DTF_CFLAGS=$(TF_CFLAGS)) \ 620 --map --list="$(MAPFILE)" --scatter=${PLAT_DIR}/scat/${1}.scat \ 621 $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) $(OBJS) 622else 623 $$(q)$($(ARCH)-ld) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) $(BL_LDFLAGS) \ 624 $(GNU_LINKER_ARGS) $(LDPATHS) \ 625 $(call ld_prefix,--start-group) \ 626 $(OBJS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS) \ 627 $(call ld_prefix,--end-group) 628endif 629ifeq ($(DISABLE_BIN_GENERATION),1) 630 $(s)echo 631 $(s)echo "Built $$@ successfully" 632 $(s)echo 633endif 634 635$(DUMP): $(ELF) | $$$$(@D)/ 636 $$(s)echo " OD $$@" 637 $$(q)$($(ARCH)-od) -dx $$< > $$@ 638 639$(BIN): $(ELF) | $$$$(@D)/ 640 $$(s)echo " BIN $$@" 641 $$(q)$($(ARCH)-oc) -O binary $$< $$@ 642 $(s)echo 643 $(s)echo "Built $$@ successfully" 644 $(s)echo 645 646.PHONY: $(1) 647ifeq ($(DISABLE_BIN_GENERATION),1) 648$(1): $(ELF) $(DUMP) 649else 650$(1): $(BIN) $(DUMP) 651endif 652 653all: $(1) 654 655ifeq ($(4),1) 656$(call ENCRYPT_FW,$(BIN),$(ENC_BIN)) 657$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(ENC_BIN),$(3), \ 658 $(ENC_BIN))) 659else 660$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,$(BL),$(BIN),--$(2),$(BIN),$(3))) 661endif 662 663endef 664 665# Convert device tree source file names to matching blobs 666# $(1) = input dts 667define SOURCES_TO_DTBS 668 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1)))) 669endef 670 671# MAKE_DTB generate the Flattened device tree binary 672# $(1) = output directory 673# $(2) = input dts 674define MAKE_DTB 675 676# List of DTB file(s) to generate, based on DTS file basename list 677$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2)))) 678# List of the pre-compiled DTS file(s) 679$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2))))) 680# Dependencies of the pre-compiled DTS file(s) on its source and included files 681$(eval DTSDEP := $(patsubst %.dtb,%.o.d,$(DOBJ))) 682# Dependencies of the DT compilation on its pre-compiled DTS 683$(eval DTBDEP := $(patsubst %.dtb,%.d,$(DOBJ))) 684 685$(eval $(call MAKE_PRE,$(DPRE),$(2),$(DTSDEP),$(DTC_CPPFLAGS))) 686 687$(DOBJ): $(DPRE) $(filter-out %.d,$(MAKEFILE_LIST)) | $$$$(@D)/ 688 $$(s)echo " DTC $$<" 689 $$(q)$($(ARCH)-dtc) $$(DTC_FLAGS) -d $(DTBDEP) -o $$@ $$< 690 $$($$@-after) 691 692-include $(DTBDEP) 693-include $(DTSDEP) 694 695endef 696 697# MAKE_DTBS builds flattened device tree sources 698# $(1) = output directory 699# $(2) = list of flattened device tree source files 700define MAKE_DTBS 701 $(eval DOBJS := $(filter %.dts,$(2))) 702 $(eval REMAIN := $(filter-out %.dts,$(2))) 703 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN))) 704 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj)))) 705 706dtbs: $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))) 707all: dtbs 708endef 709