1# 2# Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are met: 6# 7# Redistributions of source code must retain the above copyright notice, this 8# list of conditions and the following disclaimer. 9# 10# Redistributions in binary form must reproduce the above copyright notice, 11# this list of conditions and the following disclaimer in the documentation 12# and/or other materials provided with the distribution. 13# 14# Neither the name of ARM nor the names of its contributors may be used 15# to endorse or promote products derived from this software without specific 16# prior written permission. 17# 18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28# POSSIBILITY OF SUCH DAMAGE. 29# 30 31# 32# Default values for build configurations 33# 34 35# Build verbosity 36V := 0 37# Debug build 38DEBUG := 0 39# Build architecture 40ARCH := aarch64 41# Build platform 42DEFAULT_PLAT := fvp 43PLAT := ${DEFAULT_PLAT} 44# SPD choice 45SPD := none 46# Base commit to perform code check on 47BASE_COMMIT := origin/master 48# NS timer register save and restore 49NS_TIMER_SWITCH := 0 50# By default, Bl1 acts as the reset handler, not BL31 51RESET_TO_BL31 := 0 52# Include FP registers in cpu context 53CTX_INCLUDE_FPREGS := 0 54# Determine the version of ARM GIC architecture to use for interrupt management 55# in EL3. The platform port can change this value if needed. 56ARM_GIC_ARCH := 2 57 58 59# Checkpatch ignores 60CHECK_IGNORE = --ignore COMPLEX_MACRO 61 62CHECKPATCH_ARGS = --no-tree --no-signoff ${CHECK_IGNORE} 63CHECKCODE_ARGS = --no-patch --no-tree --no-signoff ${CHECK_IGNORE} 64 65ifeq (${V},0) 66 Q=@ 67 CHECKCODE_ARGS += --no-summary --terse 68else 69 Q= 70endif 71export Q 72 73ifneq (${DEBUG}, 0) 74 BUILD_TYPE := debug 75else 76 BUILD_TYPE := release 77endif 78 79BL_COMMON_SOURCES := common/bl_common.c \ 80 common/debug.c \ 81 lib/aarch64/cache_helpers.S \ 82 lib/aarch64/misc_helpers.S \ 83 lib/aarch64/xlat_helpers.c \ 84 lib/stdlib/std.c \ 85 lib/io_storage.c \ 86 plat/common/aarch64/platform_helpers.S 87 88BUILD_BASE := ./build 89BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${BUILD_TYPE} 90 91PLATFORMS := $(shell ls -I common plat/) 92SPDS := $(shell ls -I none services/spd) 93HELP_PLATFORMS := $(shell echo ${PLATFORMS} | sed 's/ /|/g') 94 95# Convenience function for adding build definitions 96# $(eval $(call add_define,FOO)) will have: 97# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 98define add_define 99DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 100endef 101 102# Convenience function for verifying option has a boolean value 103# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 104define assert_boolean 105$(and $(patsubst 0,,$(value $(1))),$(patsubst 1,,$(value $(1))),$(error $(1) must be boolean)) 106endef 107 108ifeq (${PLAT},) 109 $(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.") 110endif 111ifeq ($(findstring ${PLAT},${PLATFORMS}),) 112 $(error "Error: Invalid platform. The following platforms are available: ${PLATFORMS}") 113endif 114 115all: msg_start 116 117msg_start: 118 @echo "Building ${PLAT}" 119 120include plat/${PLAT}/platform.mk 121 122ifdef BL1_SOURCES 123NEED_BL1 := yes 124include bl1/bl1.mk 125endif 126 127ifdef BL2_SOURCES 128NEED_BL2 := yes 129include bl2/bl2.mk 130endif 131 132ifdef BL31_SOURCES 133NEED_BL31 := yes 134include bl31/bl31.mk 135endif 136 137# Include SPD Makefile if one has been specified 138ifneq (${SPD},none) 139 # We expect to locate an spd.mk under the specified SPD directory 140 SPD_MAKE := $(shell m="services/spd/${SPD}/${SPD}.mk"; [ -f "$$m" ] && echo "$$m") 141 142 ifeq (${SPD_MAKE},) 143 $(error Error: No services/spd/${SPD}/${SPD}.mk located) 144 endif 145 $(info Including ${SPD_MAKE}) 146 include ${SPD_MAKE} 147 148 # If there's BL32 companion for the chosen SPD, and the SPD wants to build the 149 # BL2 from source, we expect that the SPD's Makefile would set NEED_BL32 150 # variable to "yes" 151endif 152 153.PHONY: all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool fip 154.SUFFIXES: 155 156INCLUDES += -Iinclude/bl31 \ 157 -Iinclude/bl31/services \ 158 -Iinclude/bl32 \ 159 -Iinclude/bl32/payloads \ 160 -Iinclude/common \ 161 -Iinclude/drivers \ 162 -Iinclude/drivers/arm \ 163 -Iinclude/lib \ 164 -Iinclude/lib/aarch64 \ 165 -Iinclude/plat/common \ 166 -Iinclude/stdlib \ 167 -Iinclude/stdlib/sys \ 168 ${PLAT_INCLUDES} \ 169 ${SPD_INCLUDES} 170 171# Process DEBUG flag 172$(eval $(call assert_boolean,DEBUG)) 173$(eval $(call add_define,DEBUG)) 174ifeq (${DEBUG},0) 175 $(eval $(call add_define,NDEBUG)) 176else 177CFLAGS += -g 178ASFLAGS += -g -Wa,--gdwarf-2 179endif 180 181# Process NS_TIMER_SWITCH flag 182$(eval $(call assert_boolean,NS_TIMER_SWITCH)) 183$(eval $(call add_define,NS_TIMER_SWITCH)) 184 185# Process RESET_TO_BL31 flag 186$(eval $(call assert_boolean,RESET_TO_BL31)) 187$(eval $(call add_define,RESET_TO_BL31)) 188 189# Process CTX_INCLUDE_FPREGS flag 190$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS)) 191$(eval $(call add_define,CTX_INCLUDE_FPREGS)) 192 193# Process ARM_GIC_ARCH flag 194$(eval $(call add_define,ARM_GIC_ARCH)) 195 196 197ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \ 198 -Werror -Wmissing-include-dirs \ 199 -mgeneral-regs-only -D__ASSEMBLY__ \ 200 ${DEFINES} ${INCLUDES} 201CFLAGS += -nostdinc -pedantic -ffreestanding -Wall \ 202 -Werror -Wmissing-include-dirs \ 203 -mgeneral-regs-only -std=c99 -c -Os \ 204 ${DEFINES} ${INCLUDES} 205CFLAGS += -ffunction-sections -fdata-sections 206 207LDFLAGS += --fatal-warnings -O1 208LDFLAGS += --gc-sections 209 210 211CC := ${CROSS_COMPILE}gcc 212CPP := ${CROSS_COMPILE}cpp 213AS := ${CROSS_COMPILE}gcc 214AR := ${CROSS_COMPILE}ar 215LD := ${CROSS_COMPILE}ld 216OC := ${CROSS_COMPILE}objcopy 217OD := ${CROSS_COMPILE}objdump 218NM := ${CROSS_COMPILE}nm 219PP := ${CROSS_COMPILE}gcc -E ${CFLAGS} 220 221# Variables for use with Firmware Image Package 222FIPTOOLPATH ?= tools/fip_create 223FIPTOOL ?= ${FIPTOOLPATH}/fip_create 224fiptool: ${FIPTOOL} 225fip: ${BUILD_PLAT}/fip.bin 226 227locate-checkpatch: 228ifndef CHECKPATCH 229 $(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/script/checkpatch.pl") 230else 231ifeq (,$(wildcard ${CHECKPATCH})) 232 $(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/script/checkpatch.pl") 233endif 234endif 235 236clean: 237 @echo " CLEAN" 238 ${Q}rm -rf ${BUILD_PLAT} 239 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean 240 241realclean distclean: 242 @echo " REALCLEAN" 243 ${Q}rm -rf ${BUILD_BASE} 244 ${Q}rm -f ${CURDIR}/cscope.* 245 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean 246 247checkcodebase: locate-checkpatch 248 @echo " CHECKING STYLE" 249 @if test -d .git ; then \ 250 git ls-files | grep -v stdlib | while read GIT_FILE ; do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; done ; \ 251 else \ 252 find . -type f -not -iwholename "*.git*" -not -iwholename "*build*" -not -iwholename "*stdlib*" -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \ 253 fi 254 255checkpatch: locate-checkpatch 256 @echo " CHECKING STYLE" 257 @git format-patch --stdout ${BASE_COMMIT} | ${CHECKPATCH} ${CHECKPATCH_ARGS} - || true 258 259${FIPTOOL}: 260 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} 261 @echo 262 @echo "Built $@ successfully" 263 @echo 264 265define match_goals 266$(strip $(foreach goal,$(1),$(filter $(goal),$(MAKECMDGOALS)))) 267endef 268 269# List of rules that involve building things 270BUILD_TARGETS := all bl1 bl2 bl31 bl32 fip 271 272# Does the list of goals specified on the command line include a build target? 273ifneq ($(call match_goals,${BUILD_TARGETS}),) 274IS_ANYTHING_TO_BUILD := 1 275endif 276 277define MAKE_C 278 279$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 280$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ))) 281 282$(OBJ) : $(2) 283 @echo " CC $$<" 284 $$(Q)$$(CC) $$(CFLAGS) -c $$< -o $$@ 285 286 287$(PREREQUISITES) : $(2) 288 @echo " DEPS $$@" 289 @mkdir -p $(1) 290 $$(Q)$$(CC) $$(CFLAGS) -M -MT $(OBJ) -MF $$@ $$< 291 292ifdef IS_ANYTHING_TO_BUILD 293-include $(PREREQUISITES) 294endif 295 296endef 297 298 299define MAKE_S 300 301$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 302$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ))) 303 304$(OBJ) : $(2) 305 @echo " AS $$<" 306 $$(Q)$$(AS) $$(ASFLAGS) -c $$< -o $$@ 307 308$(PREREQUISITES) : $(2) 309 @echo " DEPS $$@" 310 @mkdir -p $(1) 311 $$(Q)$$(AS) $$(ASFLAGS) -M -MT $(OBJ) -MF $$@ $$< 312 313ifdef IS_ANYTHING_TO_BUILD 314-include $(PREREQUISITES) 315endif 316 317endef 318 319 320define MAKE_LD 321 322$(eval PREREQUISITES := $(1).d) 323 324$(1) : $(2) 325 @echo " PP $$<" 326 $$(Q)$$(AS) $$(ASFLAGS) -P -E -o $$@ $$< 327 328$(PREREQUISITES) : $(2) 329 @echo " DEPS $$@" 330 @mkdir -p $$(dir $$@) 331 $$(Q)$$(AS) $$(ASFLAGS) -M -MT $(1) -MF $$@ $$< 332 333ifdef IS_ANYTHING_TO_BUILD 334-include $(PREREQUISITES) 335endif 336 337endef 338 339 340define MAKE_OBJS 341 $(eval C_OBJS := $(filter %.c,$(2))) 342 $(eval REMAIN := $(filter-out %.c,$(2))) 343 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj)))) 344 345 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 346 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 347 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj)))) 348 349 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 350endef 351 352 353# NOTE: The line continuation '\' is required in the next define otherwise we 354# end up with a line-feed characer at the end of the last c filename. 355# Also bare this issue in mind if extending the list of supported filetypes. 356define SOURCES_TO_OBJS 357 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 358 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 359endef 360 361define MAKE_BL 362 $(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1)) 363 $(eval SOURCES := $(BL$(1)_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES)) 364 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 365 $(eval LINKERFILE := $(BUILD_DIR)/bl$(1).ld) 366 $(eval MAPFILE := $(BUILD_DIR)/bl$(1).map) 367 $(eval ELF := $(BUILD_DIR)/bl$(1).elf) 368 $(eval DUMP := $(BUILD_DIR)/bl$(1).dump) 369 $(eval BIN := $(BUILD_PLAT)/bl$(1).bin) 370 371 $(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES))) 372 $(eval $(call MAKE_LD,$(LINKERFILE),$(BL$(1)_LINKERFILE))) 373 374$(BUILD_DIR) : 375 $$(Q)mkdir -p "$$@" 376 377$(ELF) : $(OBJS) $(LINKERFILE) 378 @echo " LD $$@" 379 @echo 'const char build_message[] = "Built : "__TIME__", "__DATE__;' | \ 380 $$(CC) $$(CFLAGS) -xc - -o $(BUILD_DIR)/build_message.o 381 $$(Q)$$(LD) -o $$@ $$(LDFLAGS) -Map=$(MAPFILE) --script $(LINKERFILE) \ 382 $(BUILD_DIR)/build_message.o $(OBJS) 383 384$(DUMP) : $(ELF) 385 @echo " OD $$@" 386 $${Q}$${OD} -dx $$< > $$@ 387 388$(BIN) : $(ELF) 389 @echo " BIN $$@" 390 $$(Q)$$(OC) -O binary $$< $$@ 391 @echo 392 @echo "Built $$@ successfully" 393 @echo 394 395.PHONY : bl$(1) 396bl$(1) : $(BUILD_DIR) $(BIN) $(DUMP) 397 398all : bl$(1) 399 400$(eval FIP_DEPS += $(if $2,$(BIN),)) 401$(eval FIP_ARGS += $(if $2,--bl$(1) $(BIN),)) 402 403endef 404 405 406ifeq (${NEED_BL1},yes) 407$(eval $(call MAKE_BL,1)) 408endif 409 410ifeq (${NEED_BL2},yes) 411$(eval $(call MAKE_BL,2,in_fip)) 412endif 413 414ifeq (${NEED_BL31},yes) 415BL31_SOURCES += ${SPD_SOURCES} 416$(eval $(call MAKE_BL,31,in_fip)) 417endif 418 419ifeq (${NEED_BL32},yes) 420$(eval $(call MAKE_BL,32,in_fip)) 421endif 422 423ifeq (${NEED_BL30},yes) 424FIP_DEPS += ${BL30} 425FIP_ARGS += --bl30 ${BL30} 426endif 427 428ifeq (${NEED_BL30},yes) 429# If BL3-0 is needed by the platform then 'BL30' variable must be defined. 430check_bl30: 431 $(if ${BL30},,$(error "To build a FIP for platform ${PLAT}, please set BL30 to point to the SCP firmware")) 432else 433# If BL3-0 is not needed by the platform but the user still specified the path 434# to a BL3-0 image then warn him that it will be ignored. 435check_bl30: 436 $(if ${BL30},$(warning "BL3-0 is not supported on platform ${PLAT}, it will just be ignored"),) 437endif 438 439${BUILD_PLAT}/fip.bin: ${FIP_DEPS} ${BL33} ${FIPTOOL} check_bl30 440 $(if ${BL33},,$(error "To build a FIP, please set BL33 to point to the Normal World binary, eg: BL33=../uefi/FVP_AARCH64_EFI.fd")) 441 ${Q}${FIPTOOL} --dump \ 442 ${FIP_ARGS} \ 443 --bl33 ${BL33} \ 444 $@ 445 @echo 446 @echo "Built $@ successfully" 447 @echo 448 449 450cscope: 451 @echo " CSCOPE" 452 ${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files 453 ${Q}cscope -b -q -k 454 455help: 456 @echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> <all|bl1|bl2|bl31|distclean|clean|checkcodebase|checkpatch>" 457 @echo "" 458 @echo "PLAT is used to specify which platform you wish to build." 459 @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}" 460 @echo "" 461 @echo "Supported Targets:" 462 @echo " all Build the BL1, BL2 and BL31 binaries" 463 @echo " bl1 Build the BL1 binary" 464 @echo " bl2 Build the BL2 binary" 465 @echo " bl31 Build the BL31 binary" 466 @echo " checkcodebase Check the coding style of the entire source tree" 467 @echo " checkpatch Check the coding style on changes in the current" 468 @echo " branch against BASE_COMMIT (default origin/master)" 469 @echo " clean Clean the build for the selected platform" 470 @echo " cscope Generate cscope index" 471 @echo " distclean Remove all build artifacts for all platforms" 472 @echo " fiptool Build the Firmware Image Package(FIP) creation tool" 473 @echo "" 474 @echo "note: most build targets require PLAT to be set to a specific platform." 475 @echo "" 476 @echo "example: build all targets for the FVP platform:" 477 @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all" 478