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-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 634libs-y += drivers/serial/ 635libs-y += drivers/usb/eth/ 636libs-y += drivers/usb/gadget/ 637libs-y += drivers/usb/host/ 638libs-y += drivers/usb/musb/ 639libs-y += drivers/usb/musb-new/ 640libs-y += drivers/usb/phy/ 641libs-y += drivers/usb/ulpi/ 642libs-y += common/ 643libs-y += lib/libfdt/ 644libs-$(CONFIG_API) += api/ 645libs-$(CONFIG_HAS_POST) += post/ 646libs-y += test/ 647libs-y += test/dm/ 648 649libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 650 651libs-y := $(sort $(libs-y)) 652 653u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 654 655u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 656 657libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 658 659u-boot-init := $(head-y) 660u-boot-main := $(libs-y) 661 662 663# Add GCC lib 664ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 665PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 666else 667PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 668endif 669PLATFORM_LIBS += $(PLATFORM_LIBGCC) 670export PLATFORM_LIBS 671export PLATFORM_LIBGCC 672 673# Special flags for CPP when processing the linker script. 674# Pass the version down so we can handle backwards compatibility 675# on the fly. 676LDPPFLAGS += \ 677 -include $(srctree)/include/u-boot/u-boot.lds.h \ 678 -DCPUDIR=$(CPUDIR) \ 679 $(shell $(LD) --version | \ 680 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 681 682######################################################################### 683######################################################################### 684 685ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 686BOARD_SIZE_CHECK = \ 687 @actual=`wc -c $@ | awk '{print $$1}'`; \ 688 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 689 if test $$actual -gt $$limit; then \ 690 echo "$@ exceeds file size limit:" >&2 ; \ 691 echo " limit: $$limit bytes" >&2 ; \ 692 echo " actual: $$actual bytes" >&2 ; \ 693 echo " excess: $$((actual - limit)) bytes" >&2; \ 694 exit 1; \ 695 fi 696else 697BOARD_SIZE_CHECK = 698endif 699 700# Statically apply RELA-style relocations (currently arm64 only) 701ifneq ($(CONFIG_STATIC_RELA),) 702# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 703DO_STATIC_RELA = \ 704 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 705 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 706 tools/relocate-rela $(2) $(3) $$start $$end 707else 708DO_STATIC_RELA = 709endif 710 711# Always append ALL so that arch config.mk's can add custom ones 712ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 713 714ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 715ifeq ($(CONFIG_SPL_FSL_PBL),y) 716ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 717else 718ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 719endif 720ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 721ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 722ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 723ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 724ifeq ($(CONFIG_SPL_FRAMEWORK),y) 725ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 726endif 727ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 728ifneq ($(CONFIG_SPL_TARGET),) 729ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 730endif 731ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 732 733# We can't do this yet due to the need for binary blobs 734# ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 735 736# enable combined SPL/u-boot/dtb rules for tegra 737ifneq ($(CONFIG_TEGRA),) 738ifeq ($(CONFIG_SPL),y) 739ifeq ($(CONFIG_OF_SEPARATE),y) 740ALL-y += u-boot-dtb-tegra.bin 741else 742ALL-y += u-boot-nodtb-tegra.bin 743endif 744endif 745endif 746 747# Add optional build target if defined in board/cpu/soc headers 748ifneq ($(CONFIG_BUILD_TARGET),) 749ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 750endif 751 752LDFLAGS_u-boot += $(LDFLAGS_FINAL) 753ifneq ($(CONFIG_SYS_TEXT_BASE),) 754LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 755endif 756 757quiet_cmd_objcopy = OBJCOPY $@ 758cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 759 760quiet_cmd_mkimage = MKIMAGE $@ 761cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 762 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 763 764quiet_cmd_cat = CAT $@ 765cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 766 767append = cat $(filter-out $< $(PHONY), $^) >> $@ 768 769quiet_cmd_pad_cat = CAT $@ 770cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 771 772all: $(ALL-y) 773ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 774 @echo "===================== WARNING ======================" 775 @echo "Please convert this board to generic board." 776 @echo "Otherwise it will be removed by the end of 2014." 777 @echo "See doc/README.generic-board for further information" 778 @echo "====================================================" 779endif 780 781PHONY += dtbs 782dtbs dts/dt.dtb: checkdtc u-boot 783 $(Q)$(MAKE) $(build)=dts dtbs 784 785u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 786 $(call if_changed,cat) 787 788%.imx: %.bin 789 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 790 791quiet_cmd_copy = COPY $@ 792 cmd_copy = cp $< $@ 793 794u-boot.dtb: dts/dt.dtb 795 $(call cmd,copy) 796 797OBJCOPYFLAGS_u-boot.hex := -O ihex 798 799OBJCOPYFLAGS_u-boot.srec := -O srec 800 801u-boot.hex u-boot.srec: u-boot FORCE 802 $(call if_changed,objcopy) 803 804OBJCOPYFLAGS_u-boot.bin := -O binary \ 805 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 806 807binary_size_check: u-boot.bin FORCE 808 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 809 map_size=$(shell cat u-boot.map | \ 810 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 811 | sed 's/0X//g' \ 812 | bc); \ 813 if [ "" != "$$map_size" ]; then \ 814 if test $$map_size -ne $$file_size; then \ 815 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 816 echo " but u-boot.bin shows $$file_size" >&2 ; \ 817 exit 1; \ 818 fi \ 819 fi 820 821u-boot.bin: u-boot FORCE 822 $(call if_changed,objcopy) 823 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 824 $(BOARD_SIZE_CHECK) 825 826u-boot.ldr: u-boot 827 $(CREATE_LDR_ENV) 828 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 829 $(BOARD_SIZE_CHECK) 830 831OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 832 833OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 834 835u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 836 $(call if_changed,objcopy) 837 838# 839# U-Boot entry point, needed for booting of full-blown U-Boot 840# from the SPL U-Boot version. 841# 842ifndef CONFIG_SYS_UBOOT_START 843CONFIG_SYS_UBOOT_START := 0 844endif 845 846MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 847 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 848 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 849 850MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 851 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 852 853MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 854 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 855 856u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 857 $(call if_changed,mkimage) 858 859MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 860 861u-boot-dtb.img: u-boot-dtb.bin FORCE 862 $(call if_changed,mkimage) 863 864u-boot.sha1: u-boot.bin 865 tools/ubsha1 u-boot.bin 866 867u-boot.dis: u-boot 868 $(OBJDUMP) -d $< > $@ 869 870ifdef CONFIG_TPL 871SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 872else 873SPL_PAYLOAD := u-boot.bin 874endif 875 876OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 877 --pad-to=$(CONFIG_SPL_PAD_TO) 878u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 879 $(call if_changed,pad_cat) 880 881OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 882 --pad-to=$(CONFIG_TPL_PAD_TO) 883tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 884 $(call if_changed,pad_cat) 885 886SPL: spl/u-boot-spl.bin FORCE 887 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 888 889u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 890 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 891 892MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 893 894u-boot.ubl: u-boot-with-spl.bin FORCE 895 $(call if_changed,mkimage) 896 897MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 898 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 899 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 900spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 901 $(call if_changed,mkimage) 902 903OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 904u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 905 $(call if_changed,pad_cat) 906 907u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 908 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 909u-boot.sb: u-boot.bin spl/u-boot-spl.bin 910 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 911 912# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 913# Both images are created using mkimage (crc etc), so that the ROM 914# bootloader can check its integrity. Padding needs to be done to the 915# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 916# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 917# The resulting image containing both U-Boot images is called u-boot.spr 918MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 919 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 920spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 921 $(call if_changed,mkimage) 922 923OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 924 --gap-fill=0xff 925u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 926 $(call if_changed,pad_cat) 927 928MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 929 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 930spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 931 $(call if_changed,mkimage) 932 933OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 934 --gap-fill=0 935u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 936 $(call if_changed,pad_cat) 937 938MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 939 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 940u-boot-nand.gph: u-boot.bin FORCE 941 $(call if_changed,mkimage) 942 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 943 944# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 945# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 946# the middle. 947ifneq ($(CONFIG_X86_RESET_VECTOR),) 948rom: u-boot.rom FORCE 949 950u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin \ 951 $(srctree)/board/$(BOARDDIR)/mrc.bin 952 $(objtree)/tools/ifdtool -c -r $(CONFIG_ROM_SIZE) u-boot.tmp 953 if [ -n "$(CONFIG_HAVE_INTEL_ME)" ]; then \ 954 $(objtree)/tools/ifdtool -D \ 955 $(srctree)/board/$(BOARDDIR)/descriptor.bin u-boot.tmp; \ 956 $(objtree)/tools/ifdtool \ 957 -i ME:$(srctree)/board/$(BOARDDIR)/me.bin u-boot.tmp; \ 958 fi 959 $(objtree)/tools/ifdtool -w \ 960 $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-dtb.bin u-boot.tmp 961 $(objtree)/tools/ifdtool -w \ 962 $(CONFIG_X86_MRC_START):$(srctree)/board/$(BOARDDIR)/mrc.bin \ 963 u-boot.tmp 964 $(objtree)/tools/ifdtool -w \ 965 $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin \ 966 u-boot.tmp 967 $(objtree)/tools/ifdtool -w \ 968 $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILENAME) \ 969 u-boot.tmp 970 mv u-boot.tmp $@ 971 972OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 973u-boot-x86-16bit.bin: u-boot FORCE 974 $(call if_changed,objcopy) 975endif 976 977ifneq ($(CONFIG_SUNXI),) 978OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 979 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 980u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \ 981 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE 982 $(call if_changed,pad_cat) 983endif 984 985ifneq ($(CONFIG_TEGRA),) 986OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 987u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 988 $(call if_changed,pad_cat) 989 990ifeq ($(CONFIG_OF_SEPARATE),y) 991u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 992 $(call if_changed,cat) 993endif 994endif 995 996u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 997 $(call if_changed,cat) 998 999#Add a target to create boot binary having SPL binary in PBI format 1000#concatenated with u-boot binary. It is need by PowerPC SoC having 1001#internal SRAM <= 512KB. 1002MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1003 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1004 1005spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1006 $(call if_changed,mkimage) 1007 1008OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1009 --gap-fill=0xff 1010 1011u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 1012 $(call if_changed,pad_cat) 1013 1014# PPC4xx needs the SPL at the end of the image, since the reset vector 1015# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1016# and need to introduce a new build target with the full blown U-Boot 1017# at the start padded up to the start of the SPL image. And then concat 1018# the SPL image to the end. 1019 1020OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1021 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1022u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1023 $(call if_changed,pad_cat) 1024 1025# Create a new ELF from a raw binary file. This is useful for arm64 1026# where static relocation needs to be performed on the raw binary, 1027# but certain simulators only accept an ELF file (but don't do the 1028# relocation). 1029# FIXME refactor dts/Makefile to share target/arch detection 1030u-boot.elf: u-boot.bin 1031 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1032 $< u-boot-elf.o 1033 @$(LD) u-boot-elf.o -o $@ \ 1034 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1035 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1036 1037# Rule to link u-boot 1038# May be overridden by arch/$(ARCH)/config.mk 1039quiet_cmd_u-boot__ ?= LD $@ 1040 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1041 -T u-boot.lds $(u-boot-init) \ 1042 --start-group $(u-boot-main) --end-group \ 1043 $(PLATFORM_LIBS) -Map u-boot.map 1044 1045quiet_cmd_smap = GEN common/system_map.o 1046cmd_smap = \ 1047 smap=`$(call SYSTEM_MAP,u-boot) | \ 1048 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1049 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1050 -c $(srctree)/common/system_map.c -o common/system_map.o 1051 1052u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1053 $(call if_changed,u-boot__) 1054ifeq ($(CONFIG_KALLSYMS),y) 1055 $(call cmd,smap) 1056 $(call cmd,u-boot__) common/system_map.o 1057endif 1058 1059# The actual objects are generated when descending, 1060# make sure no implicit rule kicks in 1061$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1062 1063# Handle descending into subdirectories listed in $(vmlinux-dirs) 1064# Preset locale variables to speed up the build process. Limit locale 1065# tweaks to this spot to avoid wrong language settings when running 1066# make menuconfig etc. 1067# Error messages still appears in the original language 1068 1069PHONY += $(u-boot-dirs) 1070$(u-boot-dirs): prepare scripts 1071 $(Q)$(MAKE) $(build)=$@ 1072 1073tools: prepare 1074# The "tools" are needed early 1075$(filter-out tools, $(u-boot-dirs)): tools 1076# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1077# is "yes"), so compile examples after U-Boot is compiled. 1078examples: $(filter-out examples, $(u-boot-dirs)) 1079 1080define filechk_uboot.release 1081 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1082endef 1083 1084# Store (new) UBOOTRELEASE string in include/config/uboot.release 1085include/config/uboot.release: include/config/auto.conf FORCE 1086 $(call filechk,uboot.release) 1087 1088 1089# Things we need to do before we recursively start building the kernel 1090# or the modules are listed in "prepare". 1091# A multi level approach is used. prepareN is processed before prepareN-1. 1092# archprepare is used in arch Makefiles and when processed asm symlink, 1093# version.h and scripts_basic is processed / created. 1094 1095# Listed in dependency order 1096PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1097 1098# prepare3 is used to check if we are building in a separate output directory, 1099# and if so do: 1100# 1) Check that make has not been executed in the kernel src $(srctree) 1101prepare3: include/config/uboot.release 1102ifneq ($(KBUILD_SRC),) 1103 @$(kecho) ' Using $(srctree) as source for U-Boot' 1104 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1105 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1106 echo >&2 " in the '$(srctree)' directory.";\ 1107 /bin/false; \ 1108 fi; 1109endif 1110 1111# prepare2 creates a makefile if using a separate output directory 1112prepare2: prepare3 outputmakefile 1113 1114prepare1: prepare2 $(version_h) $(timestamp_h) \ 1115 include/config/auto.conf 1116ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1117ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1118 @echo >&2 " Your architecture does not support generic board." 1119 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1120 @/bin/false 1121endif 1122endif 1123ifeq ($(wildcard $(LDSCRIPT)),) 1124 @echo >&2 " Could not find linker script." 1125 @/bin/false 1126endif 1127 1128archprepare: prepare1 scripts_basic 1129 1130prepare0: archprepare FORCE 1131 $(Q)$(MAKE) $(build)=. 1132 1133# All the preparing.. 1134prepare: prepare0 1135 1136# Generate some files 1137# --------------------------------------------------------------------------- 1138 1139define filechk_version.h 1140 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1141 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1142 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1143 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1144endef 1145 1146define filechk_timestamp.h 1147 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1148 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1149endef 1150 1151$(version_h): include/config/uboot.release FORCE 1152 $(call filechk,version.h) 1153 1154$(timestamp_h): $(srctree)/Makefile FORCE 1155 $(call filechk,timestamp.h) 1156 1157# --------------------------------------------------------------------------- 1158 1159PHONY += depend dep 1160depend dep: 1161 @echo '*** Warning: make $@ is unnecessary now.' 1162 1163# --------------------------------------------------------------------------- 1164quiet_cmd_cpp_lds = LDS $@ 1165cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1166 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1167 1168u-boot.lds: $(LDSCRIPT) prepare FORCE 1169 $(call if_changed_dep,cpp_lds) 1170 1171spl/u-boot-spl.bin: spl/u-boot-spl 1172 @: 1173spl/u-boot-spl: tools prepare 1174 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1175 1176spl/sunxi-spl.bin: spl/u-boot-spl 1177 @: 1178 1179tpl/u-boot-tpl.bin: tools prepare 1180 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1181 1182TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1183 1184FIND := find 1185FINDFLAGS := -L 1186 1187tags ctags: 1188 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1189 -name '*.[chS]' -print` 1190 1191etags: 1192 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1193 -name '*.[chS]' -print` 1194cscope: 1195 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1196 cscope.files 1197 cscope -b -q -k 1198 1199SYSTEM_MAP = \ 1200 $(NM) $1 | \ 1201 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1202 LC_ALL=C sort 1203System.map: u-boot 1204 @$(call SYSTEM_MAP,$<) > $@ 1205 1206checkdtc: 1207 @if test $(call dtc-version) -lt 0104; then \ 1208 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1209 false; \ 1210 fi 1211 1212######################################################################### 1213 1214# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1215# R_AARCH64_RELATIVE (64-bit). 1216checkarmreloc: u-boot 1217 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1218 grep R_A | sort -u`"; \ 1219 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1220 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1221 echo "$< contains unexpected relocations: $$RELOC"; \ 1222 false; \ 1223 fi 1224 1225env: scripts_basic 1226 $(Q)$(MAKE) $(build)=tools/$@ 1227 1228tools-only: scripts_basic $(version_h) $(timestamp_h) 1229 $(Q)$(MAKE) $(build)=tools 1230 1231tools-all: export HOST_TOOLS_ALL=y 1232tools-all: env tools ; 1233 1234cross_tools: export CROSS_BUILD_TOOLS=y 1235cross_tools: tools ; 1236 1237.PHONY : CHANGELOG 1238CHANGELOG: 1239 git log --no-merges U-Boot-1_1_5.. | \ 1240 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1241 1242include/license.h: tools/bin2header COPYING 1243 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1244######################################################################### 1245 1246### 1247# Cleaning is done on three levels. 1248# make clean Delete most generated files 1249# Leave enough to build external modules 1250# make mrproper Delete the current configuration, and all generated files 1251# make distclean Remove editor backup files, patch leftover files and the like 1252 1253# Directories & files removed with 'make clean' 1254CLEAN_DIRS += $(MODVERDIR) \ 1255 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1256 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1257 1258CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1259 u-boot* MLO* SPL System.map 1260 1261# Directories & files removed with 'make mrproper' 1262MRPROPER_DIRS += include/config include/generated spl tpl \ 1263 .tmp_objdiff 1264MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1265 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1266 1267# clean - Delete most, but leave enough to build external modules 1268# 1269clean: rm-dirs := $(CLEAN_DIRS) 1270clean: rm-files := $(CLEAN_FILES) 1271 1272clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1273 1274clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1275 1276PHONY += $(clean-dirs) clean archclean 1277$(clean-dirs): 1278 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1279 1280# TODO: Do not use *.cfgtmp 1281clean: $(clean-dirs) 1282 $(call cmd,rmdirs) 1283 $(call cmd,rmfiles) 1284 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1285 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1286 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1287 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1288 -o -name '*.symtypes' -o -name 'modules.order' \ 1289 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1290 -o -name '*.gcno' \) -type f -print | xargs rm -f 1291 1292# mrproper - Delete all generated files, including .config 1293# 1294mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1295mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1296mrproper-dirs := $(addprefix _mrproper_,scripts) 1297 1298PHONY += $(mrproper-dirs) mrproper archmrproper 1299$(mrproper-dirs): 1300 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1301 1302mrproper: clean $(mrproper-dirs) 1303 $(call cmd,rmdirs) 1304 $(call cmd,rmfiles) 1305 @rm -f arch/*/include/asm/arch 1306 1307# distclean 1308# 1309PHONY += distclean 1310 1311distclean: mrproper 1312 @find $(srctree) $(RCS_FIND_IGNORE) \ 1313 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1314 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1315 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1316 -o -name '*.pyc' \) \ 1317 -type f -print | xargs rm -f 1318 @rm -f boards.cfg 1319 1320backup: 1321 F=`basename $(srctree)` ; cd .. ; \ 1322 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1323 1324help: 1325 @echo 'Cleaning targets:' 1326 @echo ' clean - Remove most generated files but keep the config' 1327 @echo ' mrproper - Remove all generated files + config + various backup files' 1328 @echo ' distclean - mrproper + remove editor backup and patch files' 1329 @echo '' 1330 @echo 'Configuration targets:' 1331 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1332 @echo '' 1333 @echo 'Other generic targets:' 1334 @echo ' all - Build all necessary images depending on configuration' 1335 @echo '* u-boot - Build the bare u-boot' 1336 @echo ' dir/ - Build all files in dir and below' 1337 @echo ' dir/file.[oisS] - Build specified target only' 1338 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1339 @echo ' (requires a recent binutils and recent build (System.map))' 1340 @echo ' tags/ctags - Generate ctags file for editors' 1341 @echo ' etags - Generate etags file for editors' 1342 @echo ' cscope - Generate cscope index' 1343 @echo ' ubootrelease - Output the release version string (use with make -s)' 1344 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1345 @echo '' 1346 @echo 'Static analysers' 1347 @echo ' checkstack - Generate a list of stack hogs' 1348 @echo '' 1349 @echo 'Documentation targets:' 1350 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1351 @echo '' 1352 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1353 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1354 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1355 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1356 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1357 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1358 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1359 @echo ' 1: warnings which may be relevant and do not occur too often' 1360 @echo ' 2: warnings which occur quite often but may still be relevant' 1361 @echo ' 3: more obscure warnings, can most likely be ignored' 1362 @echo ' Multiple levels can be combined with W=12 or W=123' 1363 @echo '' 1364 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1365 @echo 'For further info see the ./README file' 1366 1367 1368# Documentation targets 1369# --------------------------------------------------------------------------- 1370%docs: scripts_basic FORCE 1371 $(Q)$(MAKE) $(build)=scripts build_docproc 1372 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1373 1374# Dummies... 1375PHONY += prepare scripts 1376prepare: ; 1377scripts: ; 1378 1379endif #ifeq ($(config-targets),1) 1380endif #ifeq ($(mixed-targets),1) 1381 1382PHONY += checkstack ubootrelease ubootversion 1383 1384checkstack: 1385 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1386 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1387 1388ubootrelease: 1389 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1390 1391ubootversion: 1392 @echo $(UBOOTVERSION) 1393 1394# Single targets 1395# --------------------------------------------------------------------------- 1396# Single targets are compatible with: 1397# - build with mixed source and output 1398# - build with separate output dir 'make O=...' 1399# - external modules 1400# 1401# target-dir => where to store outputfile 1402# build-dir => directory in kernel source tree to use 1403 1404ifeq ($(KBUILD_EXTMOD),) 1405 build-dir = $(patsubst %/,%,$(dir $@)) 1406 target-dir = $(dir $@) 1407else 1408 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1409 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1410 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1411endif 1412 1413%.s: %.c prepare scripts FORCE 1414 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1415%.i: %.c prepare scripts FORCE 1416 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1417%.o: %.c prepare scripts FORCE 1418 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1419%.lst: %.c prepare scripts FORCE 1420 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1421%.s: %.S prepare scripts FORCE 1422 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1423%.o: %.S prepare scripts FORCE 1424 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1425%.symtypes: %.c prepare scripts FORCE 1426 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1427 1428# Modules 1429/: prepare scripts FORCE 1430 $(cmd_crmodverdir) 1431 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1432 $(build)=$(build-dir) 1433%/: prepare scripts FORCE 1434 $(cmd_crmodverdir) 1435 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1436 $(build)=$(build-dir) 1437%.ko: prepare scripts FORCE 1438 $(cmd_crmodverdir) 1439 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1440 $(build)=$(build-dir) $(@:.ko=.o) 1441 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1442 1443# FIXME Should go into a make.lib or something 1444# =========================================================================== 1445 1446quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1447 cmd_rmdirs = rm -rf $(rm-dirs) 1448 1449quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1450 cmd_rmfiles = rm -f $(rm-files) 1451 1452# read all saved command lines 1453 1454targets := $(wildcard $(sort $(targets))) 1455cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1456 1457ifneq ($(cmd_files),) 1458 $(cmd_files): ; # Do not try to update included dependency files 1459 include $(cmd_files) 1460endif 1461 1462# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1463# Usage: 1464# $(Q)$(MAKE) $(clean)=dir 1465clean := -f $(srctree)/scripts/Makefile.clean obj 1466 1467endif # skip-makefile 1468 1469PHONY += FORCE 1470FORCE: 1471 1472# Declare the contents of the .PHONY variable as phony. We keep that 1473# information in a variable so we can use it in if_changed and friends. 1474.PHONY: $(PHONY) 1475