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