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