1VERSION = 2015 2PATCHLEVEL = 01 3SUBLEVEL = 4EXTRAVERSION = -rc2 5NAME = 6 7# *DOCUMENTATION* 8# To see a list of typical targets execute "make help" 9# More info can be located in ./README 10# Comments in this file are targeted only to the developer, do not 11# expect to learn how to build the kernel reading this file. 12 13# Do not use make's built-in rules and variables 14# (this increases performance and avoids hard-to-debug behaviour); 15MAKEFLAGS += -rR 16 17# Avoid funny character set dependencies 18unexport LC_ALL 19LC_COLLATE=C 20LC_NUMERIC=C 21export LC_COLLATE LC_NUMERIC 22 23# Avoid interference with shell env settings 24unexport GREP_OPTIONS 25 26# We are using a recursive build, so we need to do a little thinking 27# to get the ordering right. 28# 29# Most importantly: sub-Makefiles should only ever modify files in 30# their own directory. If in some directory we have a dependency on 31# a file in another dir (which doesn't happen often, but it's often 32# unavoidable when linking the built-in.o targets which finally 33# turn into vmlinux), we will call a sub make in that other dir, and 34# after that we are sure that everything which is in that other dir 35# is now up to date. 36# 37# The only cases where we need to modify files which have global 38# effects are thus separated out and done before the recursive 39# descending is started. They are now explicitly listed as the 40# prepare rule. 41 42# Beautify output 43# --------------------------------------------------------------------------- 44# 45# Normally, we echo the whole command before executing it. By making 46# that echo $($(quiet)$(cmd)), we now have the possibility to set 47# $(quiet) to choose other forms of output instead, e.g. 48# 49# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 50# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 51# 52# If $(quiet) is empty, the whole command will be printed. 53# If it is set to "quiet_", only the short version will be printed. 54# If it is set to "silent_", nothing will be printed at all, since 55# the variable $(silent_cmd_cc_o_c) doesn't exist. 56# 57# A simple variant is to prefix commands with $(Q) - that's useful 58# for commands that shall be hidden in non-verbose mode. 59# 60# $(Q)ln $@ :< 61# 62# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 63# If KBUILD_VERBOSE equals 1 then the above command is displayed. 64# 65# To put more focus on warnings, be less verbose as default 66# Use 'make V=1' to see the full commands 67 68ifeq ("$(origin V)", "command line") 69 KBUILD_VERBOSE = $(V) 70endif 71ifndef KBUILD_VERBOSE 72 KBUILD_VERBOSE = 0 73endif 74 75ifeq ($(KBUILD_VERBOSE),1) 76 quiet = 77 Q = 78else 79 quiet=quiet_ 80 Q = @ 81endif 82 83# If the user is running make -s (silent mode), suppress echoing of 84# commands 85 86ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 87ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 88 quiet=silent_ 89endif 90else # make-3.8x 91ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 92 quiet=silent_ 93endif 94endif 95 96export quiet Q KBUILD_VERBOSE 97 98# kbuild supports saving output files in a separate directory. 99# To locate output files in a separate directory two syntaxes are supported. 100# In both cases the working directory must be the root of the kernel src. 101# 1) O= 102# Use "make O=dir/to/store/output/files/" 103# 104# 2) Set KBUILD_OUTPUT 105# Set the environment variable KBUILD_OUTPUT to point to the directory 106# where the output files shall be placed. 107# export KBUILD_OUTPUT=dir/to/store/output/files/ 108# make 109# 110# The O= assignment takes precedence over the KBUILD_OUTPUT environment 111# variable. 112 113# KBUILD_SRC is set on invocation of make in OBJ directory 114# KBUILD_SRC is not intended to be used by the regular user (for now) 115ifeq ($(KBUILD_SRC),) 116 117# OK, Make called in directory where kernel src resides 118# Do we want to locate output files in a separate directory? 119ifeq ("$(origin O)", "command line") 120 KBUILD_OUTPUT := $(O) 121endif 122 123# That's our default target when none is given on the command line 124PHONY := _all 125_all: 126 127# Cancel implicit rules on top Makefile 128$(CURDIR)/Makefile Makefile: ; 129 130ifneq ($(KBUILD_OUTPUT),) 131# Invoke a second make in the output directory, passing relevant variables 132# check that the output directory actually exists 133saved-output := $(KBUILD_OUTPUT) 134KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 135 && /bin/pwd) 136$(if $(KBUILD_OUTPUT),, \ 137 $(error failed to create output directory "$(saved-output)")) 138 139PHONY += $(MAKECMDGOALS) sub-make 140 141$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 142 @: 143 144sub-make: FORCE 145 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 146 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 147 148# Leave processing to above invocation of make 149skip-makefile := 1 150endif # ifneq ($(KBUILD_OUTPUT),) 151endif # ifeq ($(KBUILD_SRC),) 152 153# We process the rest of the Makefile if this is the final invocation of make 154ifeq ($(skip-makefile),) 155 156# Do not print "Entering directory ...", 157# but we want to display it when entering to the output directory 158# so that IDEs/editors are able to understand relative filenames. 159MAKEFLAGS += --no-print-directory 160 161# Call a source code checker (by default, "sparse") as part of the 162# C compilation. 163# 164# Use 'make C=1' to enable checking of only re-compiled files. 165# Use 'make C=2' to enable checking of *all* source files, regardless 166# of whether they are re-compiled or not. 167# 168# See the file "Documentation/sparse.txt" for more details, including 169# where to get the "sparse" utility. 170 171ifeq ("$(origin C)", "command line") 172 KBUILD_CHECKSRC = $(C) 173endif 174ifndef KBUILD_CHECKSRC 175 KBUILD_CHECKSRC = 0 176endif 177 178# Use make M=dir to specify directory of external module to build 179# Old syntax make ... SUBDIRS=$PWD is still supported 180# Setting the environment variable KBUILD_EXTMOD take precedence 181ifdef SUBDIRS 182 KBUILD_EXTMOD ?= $(SUBDIRS) 183endif 184 185ifeq ("$(origin M)", "command line") 186 KBUILD_EXTMOD := $(M) 187endif 188 189# If building an external module we do not care about the all: rule 190# but instead _all depend on modules 191PHONY += all 192ifeq ($(KBUILD_EXTMOD),) 193_all: all 194else 195_all: modules 196endif 197 198ifeq ($(KBUILD_SRC),) 199 # building in the source tree 200 srctree := . 201else 202 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 203 # building in a subdirectory of the source tree 204 srctree := .. 205 else 206 srctree := $(KBUILD_SRC) 207 endif 208endif 209objtree := . 210src := $(srctree) 211obj := $(objtree) 212 213VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 214 215export srctree objtree VPATH 216 217# Make sure CDPATH settings don't interfere 218unexport CDPATH 219 220######################################################################### 221 222HOSTARCH := $(shell uname -m | \ 223 sed -e s/i.86/x86/ \ 224 -e s/sun4u/sparc64/ \ 225 -e s/arm.*/arm/ \ 226 -e s/sa110/arm/ \ 227 -e s/ppc64/powerpc/ \ 228 -e s/ppc/powerpc/ \ 229 -e s/macppc/powerpc/\ 230 -e s/sh.*/sh/) 231 232HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 233 sed -e 's/\(cygwin\).*/cygwin/') 234 235export HOSTARCH HOSTOS 236 237######################################################################### 238 239# set default to nothing for native builds 240ifeq ($(HOSTARCH),$(ARCH)) 241CROSS_COMPILE ?= 242endif 243 244KCONFIG_CONFIG ?= .config 245export KCONFIG_CONFIG 246 247# SHELL used by kbuild 248CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 249 else if [ -x /bin/bash ]; then echo /bin/bash; \ 250 else echo sh; fi ; fi) 251 252HOSTCC = cc 253HOSTCXX = c++ 254HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 255HOSTCXXFLAGS = -O2 256 257ifeq ($(HOSTOS),cygwin) 258HOSTCFLAGS += -ansi 259endif 260 261# Mac OS X / Darwin's C preprocessor is Apple specific. It 262# generates numerous errors and warnings. We want to bypass it 263# and use GNU C's cpp. To do this we pass the -traditional-cpp 264# option to the compiler. Note that the -traditional-cpp flag 265# DOES NOT have the same semantics as GNU C's flag, all it does 266# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 267# 268# Apple's linker is similar, thanks to the new 2 stage linking 269# multiple symbol definitions are treated as errors, hence the 270# -multiply_defined suppress option to turn off this error. 271# 272ifeq ($(HOSTOS),darwin) 273# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 274DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 275DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 276 277os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 278 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 279 280# Snow Leopards build environment has no longer restrictions as described above 281HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 282HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 283HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 284endif 285 286# Decide whether to build built-in, modular, or both. 287# Normally, just do built-in. 288 289KBUILD_MODULES := 290KBUILD_BUILTIN := 1 291 292# If we have only "make modules", don't compile built-in objects. 293# When we're building modules with modversions, we need to consider 294# the built-in objects during the descend as well, in order to 295# make sure the checksums are up to date before we record them. 296 297ifeq ($(MAKECMDGOALS),modules) 298 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 299endif 300 301# If we have "make <whatever> modules", compile modules 302# in addition to whatever we do anyway. 303# Just "make" or "make all" shall build modules as well 304 305# U-Boot does not need modules 306#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 307# KBUILD_MODULES := 1 308#endif 309 310#ifeq ($(MAKECMDGOALS),) 311# KBUILD_MODULES := 1 312#endif 313 314export KBUILD_MODULES KBUILD_BUILTIN 315export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 316 317# Look for make include files relative to root of kernel src 318MAKEFLAGS += --include-dir=$(srctree) 319 320# We need some generic definitions (do not try to remake the file). 321$(srctree)/scripts/Kbuild.include: ; 322include $(srctree)/scripts/Kbuild.include 323 324# Make variables (CC, etc...) 325 326AS = $(CROSS_COMPILE)as 327# Always use GNU ld 328ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 329LD = $(CROSS_COMPILE)ld.bfd 330else 331LD = $(CROSS_COMPILE)ld 332endif 333CC = $(CROSS_COMPILE)gcc 334CPP = $(CC) -E 335AR = $(CROSS_COMPILE)ar 336NM = $(CROSS_COMPILE)nm 337LDR = $(CROSS_COMPILE)ldr 338STRIP = $(CROSS_COMPILE)strip 339OBJCOPY = $(CROSS_COMPILE)objcopy 340OBJDUMP = $(CROSS_COMPILE)objdump 341AWK = awk 342PERL = perl 343PYTHON = python 344DTC = dtc 345CHECK = sparse 346 347CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 348 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 349 350KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 351 352KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 353 -Wno-format-security \ 354 -fno-builtin -ffreestanding 355KBUILD_AFLAGS := -D__ASSEMBLY__ 356 357# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 358UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 359UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 360 361export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 362export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 363export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 364export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 365export MAKE AWK PERL PYTHON 366export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 367 368export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 369export KBUILD_CFLAGS KBUILD_AFLAGS 370 371# When compiling out-of-tree modules, put MODVERDIR in the module 372# tree rather than in the kernel tree. The kernel tree might 373# even be read-only. 374export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 375 376# Files to ignore in find ... statements 377 378export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 379 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 380 -prune -o 381export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 382 --exclude CVS --exclude .pc --exclude .hg --exclude .git 383 384# =========================================================================== 385# Rules shared between *config targets and build targets 386 387# Basic helpers built in scripts/ 388PHONY += scripts_basic 389scripts_basic: 390 $(Q)$(MAKE) $(build)=scripts/basic 391 $(Q)rm -f .tmp_quiet_recordmcount 392 393# To avoid any implicit rule to kick in, define an empty command. 394scripts/basic/%: scripts_basic ; 395 396PHONY += outputmakefile 397# outputmakefile generates a Makefile in the output directory, if using a 398# separate output directory. This allows convenient use of make in the 399# output directory. 400outputmakefile: 401ifneq ($(KBUILD_SRC),) 402 $(Q)ln -fsn $(srctree) source 403 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 404 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 405endif 406 407# To make sure we do not include .config for any of the *config targets 408# catch them early, and hand them over to scripts/kconfig/Makefile 409# It is allowed to specify more targets when calling make, including 410# mixing *config targets and build targets. 411# For example 'make oldconfig all'. 412# Detect when mixed targets is specified, and make a second invocation 413# of make so .config is not included in this case either (for *config). 414 415version_h := include/generated/version_autogenerated.h 416timestamp_h := include/generated/timestamp_autogenerated.h 417 418no-dot-config-targets := clean clobber mrproper distclean \ 419 help %docs check% coccicheck \ 420 ubootversion backup 421 422config-targets := 0 423mixed-targets := 0 424dot-config := 1 425 426ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 427 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 428 dot-config := 0 429 endif 430endif 431 432ifeq ($(KBUILD_EXTMOD),) 433 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 434 config-targets := 1 435 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 436 mixed-targets := 1 437 endif 438 endif 439endif 440 441ifeq ($(mixed-targets),1) 442# =========================================================================== 443# We're called with mixed targets (*config and build targets). 444# Handle them one by one. 445 446PHONY += $(MAKECMDGOALS) __build_one_by_one 447 448$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 449 @: 450 451__build_one_by_one: 452 $(Q)set -e; \ 453 for i in $(MAKECMDGOALS); do \ 454 $(MAKE) -f $(srctree)/Makefile $$i; \ 455 done 456 457else 458ifeq ($(config-targets),1) 459# =========================================================================== 460# *config targets only - make sure prerequisites are updated, and descend 461# in scripts/kconfig to make the *config target 462 463KBUILD_DEFCONFIG := sandbox_defconfig 464export KBUILD_DEFCONFIG KBUILD_KCONFIG 465 466config: scripts_basic outputmakefile FORCE 467 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@ 468 469%config: scripts_basic outputmakefile FORCE 470 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@ 471 472else 473# =========================================================================== 474# Build targets only - this includes vmlinux, arch specific targets, clean 475# targets and others. In general all targets except *config targets. 476 477ifeq ($(dot-config),1) 478# Read in config 479-include include/config/auto.conf 480 481# Read in dependencies to all Kconfig* files, make sure to run 482# oldconfig if changes are detected. 483-include include/config/auto.conf.cmd 484 485# To avoid any implicit rule to kick in, define an empty command 486$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 487 488# If .config is newer than include/config/auto.conf, someone tinkered 489# with it and forgot to run make oldconfig. 490# if auto.conf.cmd is missing then we are probably in a cleaned tree so 491# we execute the config step to be sure to catch updated Kconfig files 492include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 493 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 494 495-include include/autoconf.mk 496-include include/autoconf.mk.dep 497 498# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 499# is up-to-date. When we switch to a different board configuration, old CONFIG 500# macros are still remaining in include/config/auto.conf. Without the following 501# gimmick, wrong config.mk would be included leading nasty warnings/errors. 502autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \ 503 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG))) 504ifneq ($(autoconf_is_current),) 505include $(srctree)/config.mk 506include $(srctree)/arch/$(ARCH)/Makefile 507endif 508 509# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 510# that (or fail if absent). Otherwise, search for a linker script in a 511# standard location. 512 513ifndef LDSCRIPT 514 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 515 ifdef CONFIG_SYS_LDSCRIPT 516 # need to strip off double quotes 517 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 518 endif 519endif 520 521# If there is no specified link script, we look in a number of places for it 522ifndef LDSCRIPT 523 ifeq ($(wildcard $(LDSCRIPT)),) 524 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 525 endif 526 ifeq ($(wildcard $(LDSCRIPT)),) 527 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 528 endif 529 ifeq ($(wildcard $(LDSCRIPT)),) 530 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 531 endif 532endif 533 534else 535# Dummy target needed, because used as prerequisite 536include/config/auto.conf: ; 537endif # $(dot-config) 538 539ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 540KBUILD_CFLAGS += -Os 541else 542KBUILD_CFLAGS += -O2 543endif 544 545ifdef BUILD_TAG 546KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 547endif 548 549KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 550 551KBUILD_CFLAGS += -g 552# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 553# option to the assembler. 554KBUILD_AFLAGS += -g 555 556# Report stack usage if supported 557ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 558 KBUILD_CFLAGS += -fstack-usage 559endif 560 561KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 562 563# turn jbsr into jsr for m68k 564ifeq ($(ARCH),m68k) 565ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 566KBUILD_AFLAGS += -Wa,-gstabs,-S 567endif 568endif 569 570# Prohibit date/time macros, which would make the build non-deterministic 571KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 572 573ifneq ($(CONFIG_SYS_TEXT_BASE),) 574KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 575endif 576 577export CONFIG_SYS_TEXT_BASE 578 579include $(srctree)/scripts/Makefile.extrawarn 580 581# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 582KBUILD_CPPFLAGS += $(KCPPFLAGS) 583KBUILD_AFLAGS += $(KAFLAGS) 584KBUILD_CFLAGS += $(KCFLAGS) 585 586# Use UBOOTINCLUDE when you must reference the include/ directory. 587# Needed to be compatible with the O= option 588UBOOTINCLUDE := \ 589 -Iinclude \ 590 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 591 -I$(srctree)/arch/$(ARCH)/include \ 592 -include $(srctree)/include/linux/kconfig.h 593 594NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 595CHECKFLAGS += $(NOSTDINC_FLAGS) 596 597# FIX ME 598cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 599 $(NOSTDINC_FLAGS) 600c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 601 602######################################################################### 603# U-Boot objects....order is important (i.e. start must be first) 604 605HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 606 607libs-y += lib/ 608libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 609libs-$(CONFIG_OF_EMBED) += dts/ 610libs-y += fs/ 611libs-y += net/ 612libs-y += disk/ 613libs-y += drivers/ 614libs-y += drivers/dma/ 615libs-y += drivers/gpio/ 616libs-y += drivers/i2c/ 617libs-y += drivers/mmc/ 618libs-y += drivers/mtd/ 619libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 620libs-y += drivers/mtd/onenand/ 621libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 622libs-y += drivers/mtd/spi/ 623libs-y += drivers/net/ 624libs-y += drivers/net/phy/ 625libs-y += drivers/pci/ 626libs-y += drivers/power/ \ 627 drivers/power/fuel_gauge/ \ 628 drivers/power/mfd/ \ 629 drivers/power/pmic/ \ 630 drivers/power/battery/ 631libs-y += drivers/spi/ 632libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 633libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 634libs-y += drivers/serial/ 635libs-y += drivers/usb/eth/ 636libs-y += drivers/usb/gadget/ 637libs-y += drivers/usb/host/ 638libs-y += drivers/usb/musb/ 639libs-y += drivers/usb/musb-new/ 640libs-y += drivers/usb/phy/ 641libs-y += drivers/usb/ulpi/ 642libs-y += common/ 643libs-$(CONFIG_API) += api/ 644libs-$(CONFIG_HAS_POST) += post/ 645libs-y += test/ 646libs-y += test/dm/ 647 648libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 649 650libs-y := $(sort $(libs-y)) 651 652u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 653 654u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 655 656libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 657 658u-boot-init := $(head-y) 659u-boot-main := $(libs-y) 660 661 662# Add GCC lib 663ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 664PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 665else 666PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 667endif 668PLATFORM_LIBS += $(PLATFORM_LIBGCC) 669export PLATFORM_LIBS 670export PLATFORM_LIBGCC 671 672# Special flags for CPP when processing the linker script. 673# Pass the version down so we can handle backwards compatibility 674# on the fly. 675LDPPFLAGS += \ 676 -include $(srctree)/include/u-boot/u-boot.lds.h \ 677 -DCPUDIR=$(CPUDIR) \ 678 $(shell $(LD) --version | \ 679 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 680 681######################################################################### 682######################################################################### 683 684ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 685BOARD_SIZE_CHECK = \ 686 @actual=`wc -c $@ | awk '{print $$1}'`; \ 687 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 688 if test $$actual -gt $$limit; then \ 689 echo "$@ exceeds file size limit:" >&2 ; \ 690 echo " limit: $$limit bytes" >&2 ; \ 691 echo " actual: $$actual bytes" >&2 ; \ 692 echo " excess: $$((actual - limit)) bytes" >&2; \ 693 exit 1; \ 694 fi 695else 696BOARD_SIZE_CHECK = 697endif 698 699# Statically apply RELA-style relocations (currently arm64 only) 700ifneq ($(CONFIG_STATIC_RELA),) 701# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 702DO_STATIC_RELA = \ 703 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 704 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 705 tools/relocate-rela $(2) $(3) $$start $$end 706else 707DO_STATIC_RELA = 708endif 709 710# Always append ALL so that arch config.mk's can add custom ones 711ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 712 713ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 714ifeq ($(CONFIG_SPL_FSL_PBL),y) 715ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 716else 717ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 718endif 719ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 720ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 721ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 722ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 723ifeq ($(CONFIG_SPL_FRAMEWORK),y) 724ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 725endif 726ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 727ifneq ($(CONFIG_SPL_TARGET),) 728ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 729endif 730ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 731 732# We can't do this yet due to the need for binary blobs 733# ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 734 735# enable combined SPL/u-boot/dtb rules for tegra 736ifneq ($(CONFIG_TEGRA),) 737ifeq ($(CONFIG_SPL),y) 738ifeq ($(CONFIG_OF_SEPARATE),y) 739ALL-y += u-boot-dtb-tegra.bin 740else 741ALL-y += u-boot-nodtb-tegra.bin 742endif 743endif 744endif 745 746# Add optional build target if defined in board/cpu/soc headers 747ifneq ($(CONFIG_BUILD_TARGET),) 748ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 749endif 750 751LDFLAGS_u-boot += $(LDFLAGS_FINAL) 752ifneq ($(CONFIG_SYS_TEXT_BASE),) 753LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 754endif 755 756quiet_cmd_objcopy = OBJCOPY $@ 757cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 758 759quiet_cmd_mkimage = MKIMAGE $@ 760cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 761 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 762 763quiet_cmd_cat = CAT $@ 764cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 765 766append = cat $(filter-out $< $(PHONY), $^) >> $@ 767 768quiet_cmd_pad_cat = CAT $@ 769cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 770 771all: $(ALL-y) 772ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 773 @echo "===================== WARNING ======================" 774 @echo "Please convert this board to generic board." 775 @echo "Otherwise it will be removed by the end of 2014." 776 @echo "See doc/README.generic-board for further information" 777 @echo "====================================================" 778endif 779 780PHONY += dtbs 781dtbs dts/dt.dtb: checkdtc u-boot 782 $(Q)$(MAKE) $(build)=dts dtbs 783 784u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 785 $(call if_changed,cat) 786 787%.imx: %.bin 788 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 789 790quiet_cmd_copy = COPY $@ 791 cmd_copy = cp $< $@ 792 793u-boot.dtb: dts/dt.dtb 794 $(call cmd,copy) 795 796OBJCOPYFLAGS_u-boot.hex := -O ihex 797 798OBJCOPYFLAGS_u-boot.srec := -O srec 799 800u-boot.hex u-boot.srec: u-boot FORCE 801 $(call if_changed,objcopy) 802 803OBJCOPYFLAGS_u-boot.bin := -O binary \ 804 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 805 806binary_size_check: u-boot.bin FORCE 807 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 808 map_size=$(shell cat u-boot.map | \ 809 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 810 | sed 's/0X//g' \ 811 | bc); \ 812 if [ "" != "$$map_size" ]; then \ 813 if test $$map_size -ne $$file_size; then \ 814 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 815 echo " but u-boot.bin shows $$file_size" >&2 ; \ 816 exit 1; \ 817 fi \ 818 fi 819 820u-boot.bin: u-boot FORCE 821 $(call if_changed,objcopy) 822 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 823 $(BOARD_SIZE_CHECK) 824 825u-boot.ldr: u-boot 826 $(CREATE_LDR_ENV) 827 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 828 $(BOARD_SIZE_CHECK) 829 830OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 831 832OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 833 834u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 835 $(call if_changed,objcopy) 836 837# 838# U-Boot entry point, needed for booting of full-blown U-Boot 839# from the SPL U-Boot version. 840# 841ifndef CONFIG_SYS_UBOOT_START 842CONFIG_SYS_UBOOT_START := 0 843endif 844 845MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 846 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 847 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 848 849MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 850 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 851 852MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 853 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 854 855u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 856 $(call if_changed,mkimage) 857 858MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 859 860u-boot-dtb.img: u-boot-dtb.bin FORCE 861 $(call if_changed,mkimage) 862 863u-boot.sha1: u-boot.bin 864 tools/ubsha1 u-boot.bin 865 866u-boot.dis: u-boot 867 $(OBJDUMP) -d $< > $@ 868 869ifdef CONFIG_TPL 870SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 871else 872SPL_PAYLOAD := u-boot.bin 873endif 874 875OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 876 --pad-to=$(CONFIG_SPL_PAD_TO) 877u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 878 $(call if_changed,pad_cat) 879 880OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 881 --pad-to=$(CONFIG_TPL_PAD_TO) 882tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 883 $(call if_changed,pad_cat) 884 885SPL: spl/u-boot-spl.bin FORCE 886 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 887 888u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 889 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 890 891MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 892 893u-boot.ubl: u-boot-with-spl.bin FORCE 894 $(call if_changed,mkimage) 895 896MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 897 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 898 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 899spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 900 $(call if_changed,mkimage) 901 902OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 903u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 904 $(call if_changed,pad_cat) 905 906u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 907 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 908u-boot.sb: u-boot.bin spl/u-boot-spl.bin 909 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 910 911# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 912# Both images are created using mkimage (crc etc), so that the ROM 913# bootloader can check its integrity. Padding needs to be done to the 914# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 915# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 916# The resulting image containing both U-Boot images is called u-boot.spr 917MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 918 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 919spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 920 $(call if_changed,mkimage) 921 922OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 923 --gap-fill=0xff 924u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 925 $(call if_changed,pad_cat) 926 927MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 928 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 929spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 930 $(call if_changed,mkimage) 931 932OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 933 --gap-fill=0 934u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 935 $(call if_changed,pad_cat) 936 937MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 938 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 939u-boot-nand.gph: u-boot.bin FORCE 940 $(call if_changed,mkimage) 941 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 942 943# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 944# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 945# the middle. 946ifneq ($(CONFIG_X86_RESET_VECTOR),) 947rom: u-boot.rom FORCE 948 949u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin \ 950 $(srctree)/board/$(BOARDDIR)/mrc.bin 951 $(objtree)/tools/ifdtool -c -r $(CONFIG_ROM_SIZE) u-boot.tmp 952 if [ -n "$(CONFIG_HAVE_INTEL_ME)" ]; then \ 953 $(objtree)/tools/ifdtool -D \ 954 $(srctree)/board/$(BOARDDIR)/descriptor.bin u-boot.tmp; \ 955 $(objtree)/tools/ifdtool \ 956 -i ME:$(srctree)/board/$(BOARDDIR)/me.bin u-boot.tmp; \ 957 fi 958 $(objtree)/tools/ifdtool -w \ 959 $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-dtb.bin u-boot.tmp 960 $(objtree)/tools/ifdtool -w \ 961 $(CONFIG_X86_MRC_START):$(srctree)/board/$(BOARDDIR)/mrc.bin \ 962 u-boot.tmp 963 $(objtree)/tools/ifdtool -w \ 964 $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin \ 965 u-boot.tmp 966 $(objtree)/tools/ifdtool -w \ 967 $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILENAME) \ 968 u-boot.tmp 969 mv u-boot.tmp $@ 970 971OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 972u-boot-x86-16bit.bin: u-boot FORCE 973 $(call if_changed,objcopy) 974endif 975 976ifneq ($(CONFIG_SUNXI),) 977OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 978 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 979u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \ 980 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE 981 $(call if_changed,pad_cat) 982endif 983 984ifneq ($(CONFIG_TEGRA),) 985OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 986u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 987 $(call if_changed,pad_cat) 988 989ifeq ($(CONFIG_OF_SEPARATE),y) 990u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 991 $(call if_changed,cat) 992endif 993endif 994 995u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 996 $(call if_changed,cat) 997 998#Add a target to create boot binary having SPL binary in PBI format 999#concatenated with u-boot binary. It is need by PowerPC SoC having 1000#internal SRAM <= 512KB. 1001MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1002 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1003 1004spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1005 $(call if_changed,mkimage) 1006 1007OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1008 --gap-fill=0xff 1009 1010u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 1011 $(call if_changed,pad_cat) 1012 1013# PPC4xx needs the SPL at the end of the image, since the reset vector 1014# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1015# and need to introduce a new build target with the full blown U-Boot 1016# at the start padded up to the start of the SPL image. And then concat 1017# the SPL image to the end. 1018 1019OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1020 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1021u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1022 $(call if_changed,pad_cat) 1023 1024# Create a new ELF from a raw binary file. This is useful for arm64 1025# where static relocation needs to be performed on the raw binary, 1026# but certain simulators only accept an ELF file (but don't do the 1027# relocation). 1028# FIXME refactor dts/Makefile to share target/arch detection 1029u-boot.elf: u-boot.bin 1030 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1031 $< u-boot-elf.o 1032 @$(LD) u-boot-elf.o -o $@ \ 1033 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1034 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1035 1036# Rule to link u-boot 1037# May be overridden by arch/$(ARCH)/config.mk 1038quiet_cmd_u-boot__ ?= LD $@ 1039 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1040 -T u-boot.lds $(u-boot-init) \ 1041 --start-group $(u-boot-main) --end-group \ 1042 $(PLATFORM_LIBS) -Map u-boot.map 1043 1044quiet_cmd_smap = GEN common/system_map.o 1045cmd_smap = \ 1046 smap=`$(call SYSTEM_MAP,u-boot) | \ 1047 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1048 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1049 -c $(srctree)/common/system_map.c -o common/system_map.o 1050 1051u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1052 $(call if_changed,u-boot__) 1053ifeq ($(CONFIG_KALLSYMS),y) 1054 $(call cmd,smap) 1055 $(call cmd,u-boot__) common/system_map.o 1056endif 1057 1058# The actual objects are generated when descending, 1059# make sure no implicit rule kicks in 1060$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1061 1062# Handle descending into subdirectories listed in $(vmlinux-dirs) 1063# Preset locale variables to speed up the build process. Limit locale 1064# tweaks to this spot to avoid wrong language settings when running 1065# make menuconfig etc. 1066# Error messages still appears in the original language 1067 1068PHONY += $(u-boot-dirs) 1069$(u-boot-dirs): prepare scripts 1070 $(Q)$(MAKE) $(build)=$@ 1071 1072tools: prepare 1073# The "tools" are needed early 1074$(filter-out tools, $(u-boot-dirs)): tools 1075# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1076# is "yes"), so compile examples after U-Boot is compiled. 1077examples: $(filter-out examples, $(u-boot-dirs)) 1078 1079define filechk_uboot.release 1080 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1081endef 1082 1083# Store (new) UBOOTRELEASE string in include/config/uboot.release 1084include/config/uboot.release: include/config/auto.conf FORCE 1085 $(call filechk,uboot.release) 1086 1087 1088# Things we need to do before we recursively start building the kernel 1089# or the modules are listed in "prepare". 1090# A multi level approach is used. prepareN is processed before prepareN-1. 1091# archprepare is used in arch Makefiles and when processed asm symlink, 1092# version.h and scripts_basic is processed / created. 1093 1094# Listed in dependency order 1095PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1096 1097# prepare3 is used to check if we are building in a separate output directory, 1098# and if so do: 1099# 1) Check that make has not been executed in the kernel src $(srctree) 1100prepare3: include/config/uboot.release 1101ifneq ($(KBUILD_SRC),) 1102 @$(kecho) ' Using $(srctree) as source for U-Boot' 1103 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1104 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1105 echo >&2 " in the '$(srctree)' directory.";\ 1106 /bin/false; \ 1107 fi; 1108endif 1109 1110# prepare2 creates a makefile if using a separate output directory 1111prepare2: prepare3 outputmakefile 1112 1113prepare1: prepare2 $(version_h) $(timestamp_h) \ 1114 include/config/auto.conf 1115ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1116ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1117 @echo >&2 " Your architecture does not support generic board." 1118 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1119 @/bin/false 1120endif 1121endif 1122ifeq ($(wildcard $(LDSCRIPT)),) 1123 @echo >&2 " Could not find linker script." 1124 @/bin/false 1125endif 1126 1127archprepare: prepare1 scripts_basic 1128 1129prepare0: archprepare FORCE 1130 $(Q)$(MAKE) $(build)=. 1131 1132# All the preparing.. 1133prepare: prepare0 1134 1135# Generate some files 1136# --------------------------------------------------------------------------- 1137 1138define filechk_version.h 1139 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1140 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1141 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1142 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1143endef 1144 1145define filechk_timestamp.h 1146 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1147 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1148endef 1149 1150$(version_h): include/config/uboot.release FORCE 1151 $(call filechk,version.h) 1152 1153$(timestamp_h): $(srctree)/Makefile FORCE 1154 $(call filechk,timestamp.h) 1155 1156# --------------------------------------------------------------------------- 1157 1158PHONY += depend dep 1159depend dep: 1160 @echo '*** Warning: make $@ is unnecessary now.' 1161 1162# --------------------------------------------------------------------------- 1163quiet_cmd_cpp_lds = LDS $@ 1164cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1165 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1166 1167u-boot.lds: $(LDSCRIPT) prepare FORCE 1168 $(call if_changed_dep,cpp_lds) 1169 1170spl/u-boot-spl.bin: spl/u-boot-spl 1171 @: 1172spl/u-boot-spl: tools prepare 1173 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1174 1175spl/sunxi-spl.bin: spl/u-boot-spl 1176 @: 1177 1178tpl/u-boot-tpl.bin: tools prepare 1179 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1180 1181TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1182 1183FIND := find 1184FINDFLAGS := -L 1185 1186tags ctags: 1187 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1188 -name '*.[chS]' -print` 1189 1190etags: 1191 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1192 -name '*.[chS]' -print` 1193cscope: 1194 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1195 cscope.files 1196 cscope -b -q -k 1197 1198SYSTEM_MAP = \ 1199 $(NM) $1 | \ 1200 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1201 LC_ALL=C sort 1202System.map: u-boot 1203 @$(call SYSTEM_MAP,$<) > $@ 1204 1205checkdtc: 1206 @if test $(call dtc-version) -lt 0104; then \ 1207 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1208 false; \ 1209 fi 1210 1211######################################################################### 1212 1213# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1214# R_AARCH64_RELATIVE (64-bit). 1215checkarmreloc: u-boot 1216 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1217 grep R_A | sort -u`"; \ 1218 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1219 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1220 echo "$< contains unexpected relocations: $$RELOC"; \ 1221 false; \ 1222 fi 1223 1224env: scripts_basic 1225 $(Q)$(MAKE) $(build)=tools/$@ 1226 1227tools-only: scripts_basic $(version_h) $(timestamp_h) 1228 $(Q)$(MAKE) $(build)=tools 1229 1230tools-all: export HOST_TOOLS_ALL=y 1231tools-all: env tools ; 1232 1233cross_tools: export CROSS_BUILD_TOOLS=y 1234cross_tools: tools ; 1235 1236.PHONY : CHANGELOG 1237CHANGELOG: 1238 git log --no-merges U-Boot-1_1_5.. | \ 1239 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1240 1241include/license.h: tools/bin2header COPYING 1242 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1243######################################################################### 1244 1245### 1246# Cleaning is done on three levels. 1247# make clean Delete most generated files 1248# Leave enough to build external modules 1249# make mrproper Delete the current configuration, and all generated files 1250# make distclean Remove editor backup files, patch leftover files and the like 1251 1252# Directories & files removed with 'make clean' 1253CLEAN_DIRS += $(MODVERDIR) \ 1254 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1255 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1256 1257CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1258 u-boot* MLO* SPL System.map 1259 1260# Directories & files removed with 'make mrproper' 1261MRPROPER_DIRS += include/config include/generated spl tpl \ 1262 .tmp_objdiff 1263MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1264 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1265 1266# clean - Delete most, but leave enough to build external modules 1267# 1268clean: rm-dirs := $(CLEAN_DIRS) 1269clean: rm-files := $(CLEAN_FILES) 1270 1271clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1272 1273clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1274 1275PHONY += $(clean-dirs) clean archclean 1276$(clean-dirs): 1277 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1278 1279# TODO: Do not use *.cfgtmp 1280clean: $(clean-dirs) 1281 $(call cmd,rmdirs) 1282 $(call cmd,rmfiles) 1283 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1284 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1285 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1286 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1287 -o -name '*.symtypes' -o -name 'modules.order' \ 1288 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1289 -o -name '*.gcno' \) -type f -print | xargs rm -f 1290 1291# mrproper - Delete all generated files, including .config 1292# 1293mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1294mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1295mrproper-dirs := $(addprefix _mrproper_,scripts) 1296 1297PHONY += $(mrproper-dirs) mrproper archmrproper 1298$(mrproper-dirs): 1299 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1300 1301mrproper: clean $(mrproper-dirs) 1302 $(call cmd,rmdirs) 1303 $(call cmd,rmfiles) 1304 @rm -f arch/*/include/asm/arch 1305 1306# distclean 1307# 1308PHONY += distclean 1309 1310distclean: mrproper 1311 @find $(srctree) $(RCS_FIND_IGNORE) \ 1312 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1313 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1314 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1315 -o -name '*.pyc' \) \ 1316 -type f -print | xargs rm -f 1317 @rm -f boards.cfg 1318 1319backup: 1320 F=`basename $(srctree)` ; cd .. ; \ 1321 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1322 1323help: 1324 @echo 'Cleaning targets:' 1325 @echo ' clean - Remove most generated files but keep the config' 1326 @echo ' mrproper - Remove all generated files + config + various backup files' 1327 @echo ' distclean - mrproper + remove editor backup and patch files' 1328 @echo '' 1329 @echo 'Configuration targets:' 1330 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1331 @echo '' 1332 @echo 'Other generic targets:' 1333 @echo ' all - Build all necessary images depending on configuration' 1334 @echo '* u-boot - Build the bare u-boot' 1335 @echo ' dir/ - Build all files in dir and below' 1336 @echo ' dir/file.[oisS] - Build specified target only' 1337 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1338 @echo ' (requires a recent binutils and recent build (System.map))' 1339 @echo ' tags/ctags - Generate ctags file for editors' 1340 @echo ' etags - Generate etags file for editors' 1341 @echo ' cscope - Generate cscope index' 1342 @echo ' ubootrelease - Output the release version string (use with make -s)' 1343 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1344 @echo '' 1345 @echo 'Static analysers' 1346 @echo ' checkstack - Generate a list of stack hogs' 1347 @echo '' 1348 @echo 'Documentation targets:' 1349 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1350 @echo '' 1351 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1352 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1353 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1354 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1355 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1356 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1357 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1358 @echo ' 1: warnings which may be relevant and do not occur too often' 1359 @echo ' 2: warnings which occur quite often but may still be relevant' 1360 @echo ' 3: more obscure warnings, can most likely be ignored' 1361 @echo ' Multiple levels can be combined with W=12 or W=123' 1362 @echo '' 1363 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1364 @echo 'For further info see the ./README file' 1365 1366 1367# Documentation targets 1368# --------------------------------------------------------------------------- 1369%docs: scripts_basic FORCE 1370 $(Q)$(MAKE) $(build)=scripts build_docproc 1371 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1372 1373# Dummies... 1374PHONY += prepare scripts 1375prepare: ; 1376scripts: ; 1377 1378endif #ifeq ($(config-targets),1) 1379endif #ifeq ($(mixed-targets),1) 1380 1381PHONY += checkstack ubootrelease ubootversion 1382 1383checkstack: 1384 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1385 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1386 1387ubootrelease: 1388 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1389 1390ubootversion: 1391 @echo $(UBOOTVERSION) 1392 1393# Single targets 1394# --------------------------------------------------------------------------- 1395# Single targets are compatible with: 1396# - build with mixed source and output 1397# - build with separate output dir 'make O=...' 1398# - external modules 1399# 1400# target-dir => where to store outputfile 1401# build-dir => directory in kernel source tree to use 1402 1403ifeq ($(KBUILD_EXTMOD),) 1404 build-dir = $(patsubst %/,%,$(dir $@)) 1405 target-dir = $(dir $@) 1406else 1407 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1408 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1409 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1410endif 1411 1412%.s: %.c prepare scripts FORCE 1413 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1414%.i: %.c prepare scripts FORCE 1415 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1416%.o: %.c prepare scripts FORCE 1417 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1418%.lst: %.c prepare scripts FORCE 1419 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1420%.s: %.S prepare scripts FORCE 1421 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1422%.o: %.S prepare scripts FORCE 1423 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1424%.symtypes: %.c prepare scripts FORCE 1425 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1426 1427# Modules 1428/: prepare scripts FORCE 1429 $(cmd_crmodverdir) 1430 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1431 $(build)=$(build-dir) 1432%/: prepare scripts FORCE 1433 $(cmd_crmodverdir) 1434 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1435 $(build)=$(build-dir) 1436%.ko: prepare scripts FORCE 1437 $(cmd_crmodverdir) 1438 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1439 $(build)=$(build-dir) $(@:.ko=.o) 1440 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1441 1442# FIXME Should go into a make.lib or something 1443# =========================================================================== 1444 1445quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1446 cmd_rmdirs = rm -rf $(rm-dirs) 1447 1448quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1449 cmd_rmfiles = rm -f $(rm-files) 1450 1451# read all saved command lines 1452 1453targets := $(wildcard $(sort $(targets))) 1454cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1455 1456ifneq ($(cmd_files),) 1457 $(cmd_files): ; # Do not try to update included dependency files 1458 include $(cmd_files) 1459endif 1460 1461# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1462# Usage: 1463# $(Q)$(MAKE) $(clean)=dir 1464clean := -f $(srctree)/scripts/Makefile.clean obj 1465 1466endif # skip-makefile 1467 1468PHONY += FORCE 1469FORCE: 1470 1471# Declare the contents of the .PHONY variable as phony. We keep that 1472# information in a variable so we can use it in if_changed and friends. 1473.PHONY: $(PHONY) 1474