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 53 54# Checkpatch ignores 55CHECK_IGNORE = --ignore COMPLEX_MACRO 56 57CHECKPATCH_ARGS = --no-tree --no-signoff ${CHECK_IGNORE} 58CHECKCODE_ARGS = --no-patch --no-tree --no-signoff ${CHECK_IGNORE} 59 60ifeq (${V},0) 61 Q=@ 62 CHECKCODE_ARGS += --no-summary --terse 63else 64 Q= 65endif 66export Q 67 68ifneq (${DEBUG}, 0) 69 BUILD_TYPE := debug 70else 71 BUILD_TYPE := release 72endif 73 74BL_COMMON_SOURCES := common/bl_common.c \ 75 common/debug.c \ 76 lib/aarch64/cache_helpers.S \ 77 lib/aarch64/misc_helpers.S \ 78 lib/aarch64/xlat_helpers.c \ 79 lib/stdlib/std.c \ 80 lib/io_storage.c \ 81 plat/common/aarch64/platform_helpers.S 82 83BUILD_BASE := ./build 84BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${BUILD_TYPE} 85 86PLATFORMS := $(shell ls -I common plat/) 87SPDS := $(shell ls -I none services/spd) 88HELP_PLATFORMS := $(shell echo ${PLATFORMS} | sed 's/ /|/g') 89 90# Convenience function for adding build definitions 91# $(eval $(call add_define,FOO)) will have: 92# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise 93define add_define 94DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),) 95endef 96 97# Convenience function for verifying option has a boolean value 98# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1 99define assert_boolean 100$(and $(patsubst 0,,$(value $(1))),$(patsubst 1,,$(value $(1))),$(error $(1) must be boolean)) 101endef 102 103ifeq (${PLAT},) 104 $(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.") 105endif 106ifeq ($(findstring ${PLAT},${PLATFORMS}),) 107 $(error "Error: Invalid platform. The following platforms are available: ${PLATFORMS}") 108endif 109 110all: msg_start 111 112msg_start: 113 @echo "Building ${PLAT}" 114 115include plat/${PLAT}/platform.mk 116 117ifdef BL1_SOURCES 118NEED_BL1 := yes 119include bl1/bl1.mk 120endif 121 122ifdef BL2_SOURCES 123NEED_BL2 := yes 124include bl2/bl2.mk 125endif 126 127ifdef BL31_SOURCES 128NEED_BL31 := yes 129include bl31/bl31.mk 130endif 131 132# Include SPD Makefile if one has been specified 133ifneq (${SPD},none) 134 # We expect to locate an spd.mk under the specified SPD directory 135 SPD_MAKE := $(shell m="services/spd/${SPD}/${SPD}.mk"; [ -f "$$m" ] && echo "$$m") 136 137 ifeq (${SPD_MAKE},) 138 $(error Error: No services/spd/${SPD}/${SPD}.mk located) 139 endif 140 $(info Including ${SPD_MAKE}) 141 include ${SPD_MAKE} 142 143 # If there's BL32 companion for the chosen SPD, and the SPD wants to build the 144 # BL2 from source, we expect that the SPD's Makefile would set NEED_BL32 145 # variable to "yes" 146endif 147 148.PHONY: all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool fip 149.SUFFIXES: 150 151INCLUDES += -Iinclude/bl31 \ 152 -Iinclude/bl31/services \ 153 -Iinclude/bl32 \ 154 -Iinclude/bl32/payloads \ 155 -Iinclude/common \ 156 -Iinclude/drivers \ 157 -Iinclude/drivers/arm \ 158 -Iinclude/lib \ 159 -Iinclude/lib/aarch64 \ 160 -Iinclude/plat/common \ 161 -Iinclude/stdlib \ 162 -Iinclude/stdlib/sys \ 163 ${PLAT_INCLUDES} \ 164 ${SPD_INCLUDES} 165 166# Process DEBUG flag 167$(eval $(call assert_boolean,DEBUG)) 168$(eval $(call add_define,DEBUG)) 169ifeq (${DEBUG},0) 170 $(eval $(call add_define,NDEBUG)) 171else 172CFLAGS += -g 173ASFLAGS += -g -Wa,--gdwarf-2 174endif 175 176# Process NS_TIMER_SWITCH flag 177$(eval $(call assert_boolean,NS_TIMER_SWITCH)) 178$(eval $(call add_define,NS_TIMER_SWITCH)) 179 180# Process RESET_TO_BL31 flag 181$(eval $(call assert_boolean,RESET_TO_BL31)) 182$(eval $(call add_define,RESET_TO_BL31)) 183 184ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \ 185 -Werror -Wmissing-include-dirs \ 186 -mgeneral-regs-only -D__ASSEMBLY__ \ 187 ${DEFINES} ${INCLUDES} 188CFLAGS += -nostdinc -pedantic -ffreestanding -Wall \ 189 -Werror -Wmissing-include-dirs \ 190 -mgeneral-regs-only -std=c99 -c -Os \ 191 ${DEFINES} ${INCLUDES} 192CFLAGS += -ffunction-sections -fdata-sections 193 194LDFLAGS += --fatal-warnings -O1 195LDFLAGS += --gc-sections 196 197 198CC := ${CROSS_COMPILE}gcc 199CPP := ${CROSS_COMPILE}cpp 200AS := ${CROSS_COMPILE}gcc 201AR := ${CROSS_COMPILE}ar 202LD := ${CROSS_COMPILE}ld 203OC := ${CROSS_COMPILE}objcopy 204OD := ${CROSS_COMPILE}objdump 205NM := ${CROSS_COMPILE}nm 206PP := ${CROSS_COMPILE}gcc -E ${CFLAGS} 207 208# Variables for use with Firmware Image Package 209FIPTOOLPATH ?= tools/fip_create 210FIPTOOL ?= ${FIPTOOLPATH}/fip_create 211fiptool: ${FIPTOOL} 212fip: ${BUILD_PLAT}/fip.bin 213 214locate-checkpatch: 215ifndef CHECKPATCH 216 $(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/script/checkpatch.pl") 217else 218ifeq (,$(wildcard ${CHECKPATCH})) 219 $(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/script/checkpatch.pl") 220endif 221endif 222 223clean: 224 @echo " CLEAN" 225 ${Q}rm -rf ${BUILD_PLAT} 226 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean 227 228realclean distclean: 229 @echo " REALCLEAN" 230 ${Q}rm -rf ${BUILD_BASE} 231 ${Q}rm -f ${CURDIR}/cscope.* 232 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean 233 234checkcodebase: locate-checkpatch 235 @echo " CHECKING STYLE" 236 @if test -d .git ; then \ 237 git ls-files | grep -v stdlib | while read GIT_FILE ; do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; done ; \ 238 else \ 239 find . -type f -not -iwholename "*.git*" -not -iwholename "*build*" -not -iwholename "*stdlib*" -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \ 240 fi 241 242checkpatch: locate-checkpatch 243 @echo " CHECKING STYLE" 244 @git format-patch --stdout ${BASE_COMMIT} | ${CHECKPATCH} ${CHECKPATCH_ARGS} - || true 245 246${FIPTOOL}: 247 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} 248 @echo 249 @echo "Built $@ successfully" 250 @echo 251 252define match_goals 253$(strip $(foreach goal,$(1),$(filter $(goal),$(MAKECMDGOALS)))) 254endef 255 256# List of rules that involve building things 257BUILD_TARGETS := all bl1 bl2 bl31 bl32 fip 258 259# Does the list of goals specified on the command line include a build target? 260ifneq ($(call match_goals,${BUILD_TARGETS}),) 261IS_ANYTHING_TO_BUILD := 1 262endif 263 264define MAKE_C 265 266$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2)))) 267$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ))) 268 269$(OBJ) : $(2) 270 @echo " CC $$<" 271 $$(Q)$$(CC) $$(CFLAGS) -c $$< -o $$@ 272 273 274$(PREREQUISITES) : $(2) 275 @echo " DEPS $$@" 276 @mkdir -p $(1) 277 $$(Q)$$(CC) $$(CFLAGS) -M -MT $(OBJ) -MF $$@ $$< 278 279ifdef IS_ANYTHING_TO_BUILD 280-include $(PREREQUISITES) 281endif 282 283endef 284 285 286define MAKE_S 287 288$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2)))) 289$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ))) 290 291$(OBJ) : $(2) 292 @echo " AS $$<" 293 $$(Q)$$(AS) $$(ASFLAGS) -c $$< -o $$@ 294 295$(PREREQUISITES) : $(2) 296 @echo " DEPS $$@" 297 @mkdir -p $(1) 298 $$(Q)$$(AS) $$(ASFLAGS) -M -MT $(OBJ) -MF $$@ $$< 299 300ifdef IS_ANYTHING_TO_BUILD 301-include $(PREREQUISITES) 302endif 303 304endef 305 306 307define MAKE_LD 308 309$(eval PREREQUISITES := $(1).d) 310 311$(1) : $(2) 312 @echo " PP $$<" 313 $$(Q)$$(AS) $$(ASFLAGS) -P -E -o $$@ $$< 314 315$(PREREQUISITES) : $(2) 316 @echo " DEPS $$@" 317 @mkdir -p $$(dir $$@) 318 $$(Q)$$(AS) $$(ASFLAGS) -M -MT $(1) -MF $$@ $$< 319 320ifdef IS_ANYTHING_TO_BUILD 321-include $(PREREQUISITES) 322endif 323 324endef 325 326 327define MAKE_OBJS 328 $(eval C_OBJS := $(filter %.c,$(2))) 329 $(eval REMAIN := $(filter-out %.c,$(2))) 330 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj)))) 331 332 $(eval S_OBJS := $(filter %.S,$(REMAIN))) 333 $(eval REMAIN := $(filter-out %.S,$(REMAIN))) 334 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj)))) 335 336 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN))) 337endef 338 339 340# NOTE: The line continuation '\' is required in the next define otherwise we 341# end up with a line-feed characer at the end of the last c filename. 342# Also bare this issue in mind if extending the list of supported filetypes. 343define SOURCES_TO_OBJS 344 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \ 345 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1)))) 346endef 347 348define MAKE_BL 349 $(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1)) 350 $(eval SOURCES := $(BL$(1)_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES)) 351 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES)))) 352 $(eval LINKERFILE := $(BUILD_DIR)/bl$(1).ld) 353 $(eval MAPFILE := $(BUILD_DIR)/bl$(1).map) 354 $(eval ELF := $(BUILD_DIR)/bl$(1).elf) 355 $(eval DUMP := $(BUILD_DIR)/bl$(1).dump) 356 $(eval BIN := $(BUILD_PLAT)/bl$(1).bin) 357 358 $(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES))) 359 $(eval $(call MAKE_LD,$(LINKERFILE),$(BL$(1)_LINKERFILE))) 360 361$(BUILD_DIR) : 362 $$(Q)mkdir -p "$$@" 363 364$(ELF) : $(OBJS) $(LINKERFILE) 365 @echo " LD $$@" 366 @echo 'const char build_message[] = "Built : "__TIME__", "__DATE__;' | \ 367 $$(CC) $$(CFLAGS) -xc - -o $(BUILD_DIR)/build_message.o 368 $$(Q)$$(LD) -o $$@ $$(LDFLAGS) -Map=$(MAPFILE) --script $(LINKERFILE) \ 369 $(BUILD_DIR)/build_message.o $(OBJS) 370 371$(DUMP) : $(ELF) 372 @echo " OD $$@" 373 $${Q}$${OD} -dx $$< > $$@ 374 375$(BIN) : $(ELF) 376 @echo " BIN $$@" 377 $$(Q)$$(OC) -O binary $$< $$@ 378 @echo 379 @echo "Built $$@ successfully" 380 @echo 381 382.PHONY : bl$(1) 383bl$(1) : $(BUILD_DIR) $(BIN) $(DUMP) 384 385all : bl$(1) 386 387$(eval FIP_DEPS += $(if $2,$(BIN),)) 388$(eval FIP_ARGS += $(if $2,--bl$(1) $(BIN),)) 389 390endef 391 392 393ifeq (${NEED_BL1},yes) 394$(eval $(call MAKE_BL,1)) 395endif 396 397ifeq (${NEED_BL2},yes) 398$(eval $(call MAKE_BL,2,in_fip)) 399endif 400 401ifeq (${NEED_BL31},yes) 402BL31_SOURCES += ${SPD_SOURCES} 403$(eval $(call MAKE_BL,31,in_fip)) 404endif 405 406ifeq (${NEED_BL32},yes) 407$(eval $(call MAKE_BL,32,in_fip)) 408endif 409 410${BUILD_PLAT}/fip.bin: ${FIP_DEPS} ${BL33} ${FIPTOOL} 411 $(if ${BL33},,$(error "To build a FIP, please set BL33 to point to the Normal World binary, eg: BL33=../uefi/FVP_AARCH64_EFI.fd")) 412 ${Q}${FIPTOOL} --dump \ 413 ${FIP_ARGS} \ 414 --bl33 ${BL33} \ 415 $@ 416 @echo 417 @echo "Built $@ successfully" 418 @echo 419 420 421cscope: 422 @echo " CSCOPE" 423 ${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files 424 ${Q}cscope -b -q -k 425 426help: 427 @echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> <all|bl1|bl2|bl31|distclean|clean|checkcodebase|checkpatch>" 428 @echo "" 429 @echo "PLAT is used to specify which platform you wish to build." 430 @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}" 431 @echo "" 432 @echo "Supported Targets:" 433 @echo " all Build the BL1, BL2 and BL31 binaries" 434 @echo " bl1 Build the BL1 binary" 435 @echo " bl2 Build the BL2 binary" 436 @echo " bl31 Build the BL31 binary" 437 @echo " checkcodebase Check the coding style of the entire source tree" 438 @echo " checkpatch Check the coding style on changes in the current" 439 @echo " branch against BASE_COMMIT (default origin/master)" 440 @echo " clean Clean the build for the selected platform" 441 @echo " cscope Generate cscope index" 442 @echo " distclean Remove all build artifacts for all platforms" 443 @echo " fiptool Build the Firmware Image Package(FIP) creation tool" 444 @echo "" 445 @echo "note: most build targets require PLAT to be set to a specific platform." 446 @echo "" 447 @echo "example: build all targets for the FVP platform:" 448 @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all" 449