1VERSION = 2015 2PATCHLEVEL = 04 3SUBLEVEL = 4EXTRAVERSION = 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") 284 285# since Lion (10.7) ASLR is on by default, but we use linker generated lists 286# in some host tools which is a problem then ... so disable ASLR for these 287# tools 288HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 289endif 290 291# Decide whether to build built-in, modular, or both. 292# Normally, just do built-in. 293 294KBUILD_MODULES := 295KBUILD_BUILTIN := 1 296 297# If we have only "make modules", don't compile built-in objects. 298# When we're building modules with modversions, we need to consider 299# the built-in objects during the descend as well, in order to 300# make sure the checksums are up to date before we record them. 301 302ifeq ($(MAKECMDGOALS),modules) 303 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 304endif 305 306# If we have "make <whatever> modules", compile modules 307# in addition to whatever we do anyway. 308# Just "make" or "make all" shall build modules as well 309 310# U-Boot does not need modules 311#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 312# KBUILD_MODULES := 1 313#endif 314 315#ifeq ($(MAKECMDGOALS),) 316# KBUILD_MODULES := 1 317#endif 318 319export KBUILD_MODULES KBUILD_BUILTIN 320export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 321 322# Look for make include files relative to root of kernel src 323MAKEFLAGS += --include-dir=$(srctree) 324 325# We need some generic definitions (do not try to remake the file). 326$(srctree)/scripts/Kbuild.include: ; 327include $(srctree)/scripts/Kbuild.include 328 329# Make variables (CC, etc...) 330 331AS = $(CROSS_COMPILE)as 332# Always use GNU ld 333ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 334LD = $(CROSS_COMPILE)ld.bfd 335else 336LD = $(CROSS_COMPILE)ld 337endif 338CC = $(CROSS_COMPILE)gcc 339CPP = $(CC) -E 340AR = $(CROSS_COMPILE)ar 341NM = $(CROSS_COMPILE)nm 342LDR = $(CROSS_COMPILE)ldr 343STRIP = $(CROSS_COMPILE)strip 344OBJCOPY = $(CROSS_COMPILE)objcopy 345OBJDUMP = $(CROSS_COMPILE)objdump 346AWK = awk 347PERL = perl 348PYTHON = python 349DTC = dtc 350CHECK = sparse 351 352CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 353 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 354 355KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 356 357KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 358 -Wno-format-security \ 359 -fno-builtin -ffreestanding 360KBUILD_AFLAGS := -D__ASSEMBLY__ 361 362# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 363UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 364UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 365 366export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 367export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 368export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 369export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 370export MAKE AWK PERL PYTHON 371export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 372 373export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 374export KBUILD_CFLAGS KBUILD_AFLAGS 375 376# When compiling out-of-tree modules, put MODVERDIR in the module 377# tree rather than in the kernel tree. The kernel tree might 378# even be read-only. 379export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 380 381# Files to ignore in find ... statements 382 383export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 384 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 385 -prune -o 386export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 387 --exclude CVS --exclude .pc --exclude .hg --exclude .git 388 389# =========================================================================== 390# Rules shared between *config targets and build targets 391 392# Basic helpers built in scripts/ 393PHONY += scripts_basic 394scripts_basic: 395 $(Q)$(MAKE) $(build)=scripts/basic 396 $(Q)rm -f .tmp_quiet_recordmcount 397 398# To avoid any implicit rule to kick in, define an empty command. 399scripts/basic/%: scripts_basic ; 400 401PHONY += outputmakefile 402# outputmakefile generates a Makefile in the output directory, if using a 403# separate output directory. This allows convenient use of make in the 404# output directory. 405outputmakefile: 406ifneq ($(KBUILD_SRC),) 407 $(Q)ln -fsn $(srctree) source 408 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 409 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 410endif 411 412# To make sure we do not include .config for any of the *config targets 413# catch them early, and hand them over to scripts/kconfig/Makefile 414# It is allowed to specify more targets when calling make, including 415# mixing *config targets and build targets. 416# For example 'make oldconfig all'. 417# Detect when mixed targets is specified, and make a second invocation 418# of make so .config is not included in this case either (for *config). 419 420version_h := include/generated/version_autogenerated.h 421timestamp_h := include/generated/timestamp_autogenerated.h 422 423no-dot-config-targets := clean clobber mrproper distclean \ 424 help %docs check% coccicheck \ 425 ubootversion backup 426 427config-targets := 0 428mixed-targets := 0 429dot-config := 1 430 431ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 432 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 433 dot-config := 0 434 endif 435endif 436 437ifeq ($(KBUILD_EXTMOD),) 438 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 439 config-targets := 1 440 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 441 mixed-targets := 1 442 endif 443 endif 444endif 445 446ifeq ($(mixed-targets),1) 447# =========================================================================== 448# We're called with mixed targets (*config and build targets). 449# Handle them one by one. 450 451PHONY += $(MAKECMDGOALS) __build_one_by_one 452 453$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 454 @: 455 456__build_one_by_one: 457 $(Q)set -e; \ 458 for i in $(MAKECMDGOALS); do \ 459 $(MAKE) -f $(srctree)/Makefile $$i; \ 460 done 461 462else 463ifeq ($(config-targets),1) 464# =========================================================================== 465# *config targets only - make sure prerequisites are updated, and descend 466# in scripts/kconfig to make the *config target 467 468KBUILD_DEFCONFIG := sandbox_defconfig 469export KBUILD_DEFCONFIG KBUILD_KCONFIG 470 471config: scripts_basic outputmakefile FORCE 472 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 473 474%config: scripts_basic outputmakefile FORCE 475 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 476 477else 478# =========================================================================== 479# Build targets only - this includes vmlinux, arch specific targets, clean 480# targets and others. In general all targets except *config targets. 481 482ifeq ($(dot-config),1) 483# Read in config 484-include include/config/auto.conf 485 486# Read in dependencies to all Kconfig* files, make sure to run 487# oldconfig if changes are detected. 488-include include/config/auto.conf.cmd 489 490# To avoid any implicit rule to kick in, define an empty command 491$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 492 493# If .config is newer than include/config/auto.conf, someone tinkered 494# with it and forgot to run make oldconfig. 495# if auto.conf.cmd is missing then we are probably in a cleaned tree so 496# we execute the config step to be sure to catch updated Kconfig files 497include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 498 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 499 @# If the following part fails, include/config/auto.conf should be 500 @# deleted so "make silentoldconfig" will be re-run on the next build. 501 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 502 { rm -f include/config/auto.conf; false; } 503 @# include/config.h has been updated after "make silentoldconfig". 504 @# We need to touch include/config/auto.conf so it gets newer 505 @# than include/config.h. 506 @# Otherwise, 'make silentoldconfig' would be invoked twice. 507 $(Q)touch include/config/auto.conf 508 509-include include/autoconf.mk 510-include include/autoconf.mk.dep 511 512# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 513# is up-to-date. When we switch to a different board configuration, old CONFIG 514# macros are still remaining in include/config/auto.conf. Without the following 515# gimmick, wrong config.mk would be included leading nasty warnings/errors. 516ifneq ($(wildcard $(KCONFIG_CONFIG)),) 517ifneq ($(wildcard include/config/auto.conf),) 518autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 519 include/config/auto.conf) 520ifeq ($(autoconf_is_old),) 521include $(srctree)/config.mk 522include $(srctree)/arch/$(ARCH)/Makefile 523endif 524endif 525endif 526 527# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 528# that (or fail if absent). Otherwise, search for a linker script in a 529# standard location. 530 531ifndef LDSCRIPT 532 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 533 ifdef CONFIG_SYS_LDSCRIPT 534 # need to strip off double quotes 535 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 536 endif 537endif 538 539# If there is no specified link script, we look in a number of places for it 540ifndef LDSCRIPT 541 ifeq ($(wildcard $(LDSCRIPT)),) 542 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 543 endif 544 ifeq ($(wildcard $(LDSCRIPT)),) 545 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 546 endif 547 ifeq ($(wildcard $(LDSCRIPT)),) 548 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 549 endif 550endif 551 552else 553# Dummy target needed, because used as prerequisite 554include/config/auto.conf: ; 555endif # $(dot-config) 556 557ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 558KBUILD_CFLAGS += -Os 559else 560KBUILD_CFLAGS += -O2 561endif 562 563ifdef BUILD_TAG 564KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 565endif 566 567KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 568 569KBUILD_CFLAGS += -g 570# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 571# option to the assembler. 572KBUILD_AFLAGS += -g 573 574# Report stack usage if supported 575ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 576 KBUILD_CFLAGS += -fstack-usage 577endif 578 579KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 580 581# turn jbsr into jsr for m68k 582ifeq ($(ARCH),m68k) 583ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 584KBUILD_AFLAGS += -Wa,-gstabs,-S 585endif 586endif 587 588# Prohibit date/time macros, which would make the build non-deterministic 589KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 590 591ifneq ($(CONFIG_SYS_TEXT_BASE),) 592KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 593endif 594 595export CONFIG_SYS_TEXT_BASE 596 597include $(srctree)/scripts/Makefile.extrawarn 598 599# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 600KBUILD_CPPFLAGS += $(KCPPFLAGS) 601KBUILD_AFLAGS += $(KAFLAGS) 602KBUILD_CFLAGS += $(KCFLAGS) 603 604# Use UBOOTINCLUDE when you must reference the include/ directory. 605# Needed to be compatible with the O= option 606UBOOTINCLUDE := \ 607 -Iinclude \ 608 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 609 -I$(srctree)/arch/$(ARCH)/include \ 610 -include $(srctree)/include/linux/kconfig.h 611 612NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 613CHECKFLAGS += $(NOSTDINC_FLAGS) 614 615# FIX ME 616cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 617 $(NOSTDINC_FLAGS) 618c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 619 620######################################################################### 621# U-Boot objects....order is important (i.e. start must be first) 622 623HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 624 625libs-y += lib/ 626libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 627libs-$(CONFIG_OF_EMBED) += dts/ 628libs-y += fs/ 629libs-y += net/ 630libs-y += disk/ 631libs-y += drivers/ 632libs-y += drivers/dma/ 633libs-y += drivers/gpio/ 634libs-y += drivers/i2c/ 635libs-y += drivers/mmc/ 636libs-y += drivers/mtd/ 637libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 638libs-y += drivers/mtd/onenand/ 639libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 640libs-y += drivers/mtd/spi/ 641libs-y += drivers/net/ 642libs-y += drivers/net/phy/ 643libs-y += drivers/pci/ 644libs-y += drivers/power/ \ 645 drivers/power/fuel_gauge/ \ 646 drivers/power/mfd/ \ 647 drivers/power/pmic/ \ 648 drivers/power/battery/ 649libs-y += drivers/spi/ 650libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 651libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 652libs-y += drivers/serial/ 653libs-y += drivers/usb/dwc3/ 654libs-y += drivers/usb/emul/ 655libs-y += drivers/usb/eth/ 656libs-y += drivers/usb/gadget/ 657libs-y += drivers/usb/gadget/udc/ 658libs-y += drivers/usb/host/ 659libs-y += drivers/usb/musb/ 660libs-y += drivers/usb/musb-new/ 661libs-y += drivers/usb/phy/ 662libs-y += drivers/usb/ulpi/ 663libs-y += common/ 664libs-$(CONFIG_API) += api/ 665libs-$(CONFIG_HAS_POST) += post/ 666libs-y += test/ 667libs-y += test/dm/ 668 669libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 670 671libs-y := $(sort $(libs-y)) 672 673u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 674 675u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 676 677libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 678 679u-boot-init := $(head-y) 680u-boot-main := $(libs-y) 681 682 683# Add GCC lib 684ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 685PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 686else 687PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 688endif 689PLATFORM_LIBS += $(PLATFORM_LIBGCC) 690export PLATFORM_LIBS 691export PLATFORM_LIBGCC 692 693# Special flags for CPP when processing the linker script. 694# Pass the version down so we can handle backwards compatibility 695# on the fly. 696LDPPFLAGS += \ 697 -include $(srctree)/include/u-boot/u-boot.lds.h \ 698 -DCPUDIR=$(CPUDIR) \ 699 $(shell $(LD) --version | \ 700 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 701 702######################################################################### 703######################################################################### 704 705ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 706BOARD_SIZE_CHECK = \ 707 @actual=`wc -c $@ | awk '{print $$1}'`; \ 708 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 709 if test $$actual -gt $$limit; then \ 710 echo "$@ exceeds file size limit:" >&2 ; \ 711 echo " limit: $$limit bytes" >&2 ; \ 712 echo " actual: $$actual bytes" >&2 ; \ 713 echo " excess: $$((actual - limit)) bytes" >&2; \ 714 exit 1; \ 715 fi 716else 717BOARD_SIZE_CHECK = 718endif 719 720# Statically apply RELA-style relocations (currently arm64 only) 721ifneq ($(CONFIG_STATIC_RELA),) 722# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 723DO_STATIC_RELA = \ 724 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 725 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 726 tools/relocate-rela $(2) $(3) $$start $$end 727else 728DO_STATIC_RELA = 729endif 730 731# Always append ALL so that arch config.mk's can add custom ones 732ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 733 734ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 735ifeq ($(CONFIG_SPL_FSL_PBL),y) 736ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 737else 738ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 739endif 740ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 741ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 742ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 743ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 744ifeq ($(CONFIG_SPL_FRAMEWORK),y) 745ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 746endif 747ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 748ifneq ($(CONFIG_SPL_TARGET),) 749ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 750endif 751ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 752 753ifneq ($(BUILD_ROM),) 754ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 755endif 756 757# enable combined SPL/u-boot/dtb rules for tegra 758ifneq ($(CONFIG_TEGRA),) 759ifeq ($(CONFIG_SPL),y) 760ifeq ($(CONFIG_OF_SEPARATE),y) 761ALL-y += u-boot-dtb-tegra.bin 762else 763ALL-y += u-boot-nodtb-tegra.bin 764endif 765endif 766endif 767 768# Add optional build target if defined in board/cpu/soc headers 769ifneq ($(CONFIG_BUILD_TARGET),) 770ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 771endif 772 773LDFLAGS_u-boot += $(LDFLAGS_FINAL) 774ifneq ($(CONFIG_SYS_TEXT_BASE),) 775LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 776endif 777 778quiet_cmd_objcopy = OBJCOPY $@ 779cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 780 781quiet_cmd_mkimage = MKIMAGE $@ 782cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 783 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 784 785quiet_cmd_cat = CAT $@ 786cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 787 788append = cat $(filter-out $< $(PHONY), $^) >> $@ 789 790quiet_cmd_pad_cat = CAT $@ 791cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 792 793all: $(ALL-y) 794ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 795 @echo "===================== WARNING ======================" 796 @echo "Please convert this board to generic board." 797 @echo "Otherwise it will be removed by the end of 2014." 798 @echo "See doc/README.generic-board for further information" 799 @echo "====================================================" 800endif 801ifeq ($(CONFIG_DM_I2C_COMPAT),y) 802 @echo "===================== WARNING ======================" 803 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 804 @echo "(possibly in a subsequent patch in your series)" 805 @echo "before sending patches to the mailing list." 806 @echo "====================================================" 807endif 808 809PHONY += dtbs 810dtbs dts/dt.dtb: checkdtc u-boot 811 $(Q)$(MAKE) $(build)=dts dtbs 812 813u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 814 $(call if_changed,cat) 815 816%.imx: %.bin 817 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 818 819quiet_cmd_copy = COPY $@ 820 cmd_copy = cp $< $@ 821 822u-boot.dtb: dts/dt.dtb 823 $(call cmd,copy) 824 825OBJCOPYFLAGS_u-boot.hex := -O ihex 826 827OBJCOPYFLAGS_u-boot.srec := -O srec 828 829u-boot.hex u-boot.srec: u-boot FORCE 830 $(call if_changed,objcopy) 831 832OBJCOPYFLAGS_u-boot.bin := -O binary \ 833 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 834 835binary_size_check: u-boot.bin FORCE 836 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 837 map_size=$(shell cat u-boot.map | \ 838 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 839 | sed 's/0X//g' \ 840 | bc); \ 841 if [ "" != "$$map_size" ]; then \ 842 if test $$map_size -ne $$file_size; then \ 843 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 844 echo " but u-boot.bin shows $$file_size" >&2 ; \ 845 exit 1; \ 846 fi \ 847 fi 848 849u-boot.bin: u-boot FORCE 850 $(call if_changed,objcopy) 851 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 852 $(BOARD_SIZE_CHECK) 853 854u-boot.ldr: u-boot 855 $(CREATE_LDR_ENV) 856 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 857 $(BOARD_SIZE_CHECK) 858 859OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 860 861OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 862 863u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 864 $(call if_changed,objcopy) 865 866# 867# U-Boot entry point, needed for booting of full-blown U-Boot 868# from the SPL U-Boot version. 869# 870ifndef CONFIG_SYS_UBOOT_START 871CONFIG_SYS_UBOOT_START := 0 872endif 873 874MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 875 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 876 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 877 878MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 879 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 880 881MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 882 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 883 884MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 885 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 886 887u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 888 $(call if_changed,mkimage) 889 890u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 891 $(call if_changed,mkimage) 892 893MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 894 895u-boot-dtb.img: u-boot-dtb.bin FORCE 896 $(call if_changed,mkimage) 897 898u-boot.sha1: u-boot.bin 899 tools/ubsha1 u-boot.bin 900 901u-boot.dis: u-boot 902 $(OBJDUMP) -d $< > $@ 903 904ifdef CONFIG_TPL 905SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 906else 907SPL_PAYLOAD := u-boot.bin 908endif 909 910OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 911 --pad-to=$(CONFIG_SPL_PAD_TO) 912u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 913 $(call if_changed,pad_cat) 914 915MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 916 917lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 918 $(call if_changed,mkimage) 919 920OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 921 922lpc32xx-boot-0.bin: lpc32xx-spl.img 923 $(call if_changed,objcopy) 924 925OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 926 927lpc32xx-boot-1.bin: lpc32xx-spl.img 928 $(call if_changed,objcopy) 929 930lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img 931 $(call if_changed,cat) 932 933CLEAN_FILES += lpc32xx-* 934 935OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 936 --pad-to=$(CONFIG_TPL_PAD_TO) 937tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 938 $(call if_changed,pad_cat) 939 940SPL: spl/u-boot-spl.bin FORCE 941 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 942 943u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 944 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 945 946MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 947 948u-boot.ubl: u-boot-with-spl.bin FORCE 949 $(call if_changed,mkimage) 950 951MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 952 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 953 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 954spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 955 $(call if_changed,mkimage) 956 957OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 958u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 959 $(call if_changed,pad_cat) 960 961u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 962 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 963u-boot.sb: u-boot.bin spl/u-boot-spl.bin 964 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 965 966# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 967# Both images are created using mkimage (crc etc), so that the ROM 968# bootloader can check its integrity. Padding needs to be done to the 969# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 970# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 971# The resulting image containing both U-Boot images is called u-boot.spr 972MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 973 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 974spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 975 $(call if_changed,mkimage) 976 977OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 978 --gap-fill=0xff 979u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 980 $(call if_changed,pad_cat) 981 982MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 983 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 984spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 985 $(call if_changed,mkimage) 986 987OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 988 --gap-fill=0 989u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 990 $(call if_changed,pad_cat) 991 992MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 993 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 994u-boot-nand.gph: u-boot.bin FORCE 995 $(call if_changed,mkimage) 996 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 997 998# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 999# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1000# the middle. 1001ifneq ($(CONFIG_X86_RESET_VECTOR),) 1002rom: u-boot.rom FORCE 1003 1004IFDTOOL=$(objtree)/tools/ifdtool 1005IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1006IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1007IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin 1008IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1009 1010ifneq ($(CONFIG_HAVE_INTEL_ME),) 1011IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1012IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1013endif 1014 1015ifneq ($(CONFIG_HAVE_MRC),) 1016IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1017endif 1018 1019ifneq ($(CONFIG_HAVE_FSP),) 1020IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1021endif 1022 1023ifneq ($(CONFIG_HAVE_CMC),) 1024IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1025endif 1026 1027ifneq ($(CONFIG_X86_OPTION_ROM_ADDR),) 1028IFDTOOL_FLAGS += -w $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILE) 1029endif 1030 1031quiet_cmd_ifdtool = IFDTOOL $@ 1032cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1033ifneq ($(CONFIG_HAVE_INTEL_ME),) 1034cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1035endif 1036cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1037cmd_ifdtool += mv u-boot.tmp $@ 1038 1039u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin 1040 $(call if_changed,ifdtool) 1041 1042OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1043u-boot-x86-16bit.bin: u-boot FORCE 1044 $(call if_changed,objcopy) 1045endif 1046 1047ifneq ($(CONFIG_SUNXI),) 1048OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1049 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1050u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \ 1051 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE 1052 $(call if_changed,pad_cat) 1053endif 1054 1055ifneq ($(CONFIG_TEGRA),) 1056OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1057u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1058 $(call if_changed,pad_cat) 1059 1060ifeq ($(CONFIG_OF_SEPARATE),y) 1061u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 1062 $(call if_changed,cat) 1063endif 1064endif 1065 1066u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1067 $(call if_changed,cat) 1068 1069#Add a target to create boot binary having SPL binary in PBI format 1070#concatenated with u-boot binary. It is need by PowerPC SoC having 1071#internal SRAM <= 512KB. 1072MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1073 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1074 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1075 1076spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1077 $(call if_changed,mkimage) 1078 1079ifeq ($(ARCH),arm) 1080UBOOT_BINLOAD := u-boot.img 1081else 1082UBOOT_BINLOAD := u-boot.bin 1083endif 1084 1085OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1086 --gap-fill=0xff 1087 1088u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1089 $(call if_changed,pad_cat) 1090 1091# PPC4xx needs the SPL at the end of the image, since the reset vector 1092# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1093# and need to introduce a new build target with the full blown U-Boot 1094# at the start padded up to the start of the SPL image. And then concat 1095# the SPL image to the end. 1096 1097OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1098 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1099u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1100 $(call if_changed,pad_cat) 1101 1102# Create a new ELF from a raw binary file. This is useful for arm64 1103# where static relocation needs to be performed on the raw binary, 1104# but certain simulators only accept an ELF file (but don't do the 1105# relocation). 1106# FIXME refactor dts/Makefile to share target/arch detection 1107u-boot.elf: u-boot.bin 1108 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1109 $< u-boot-elf.o 1110 @$(LD) u-boot-elf.o -o $@ \ 1111 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1112 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1113 1114# Rule to link u-boot 1115# May be overridden by arch/$(ARCH)/config.mk 1116quiet_cmd_u-boot__ ?= LD $@ 1117 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1118 -T u-boot.lds $(u-boot-init) \ 1119 --start-group $(u-boot-main) --end-group \ 1120 $(PLATFORM_LIBS) -Map u-boot.map 1121 1122quiet_cmd_smap = GEN common/system_map.o 1123cmd_smap = \ 1124 smap=`$(call SYSTEM_MAP,u-boot) | \ 1125 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1126 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1127 -c $(srctree)/common/system_map.c -o common/system_map.o 1128 1129u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1130 $(call if_changed,u-boot__) 1131ifeq ($(CONFIG_KALLSYMS),y) 1132 $(call cmd,smap) 1133 $(call cmd,u-boot__) common/system_map.o 1134endif 1135 1136# The actual objects are generated when descending, 1137# make sure no implicit rule kicks in 1138$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1139 1140# Handle descending into subdirectories listed in $(vmlinux-dirs) 1141# Preset locale variables to speed up the build process. Limit locale 1142# tweaks to this spot to avoid wrong language settings when running 1143# make menuconfig etc. 1144# Error messages still appears in the original language 1145 1146PHONY += $(u-boot-dirs) 1147$(u-boot-dirs): prepare scripts 1148 $(Q)$(MAKE) $(build)=$@ 1149 1150tools: prepare 1151# The "tools" are needed early 1152$(filter-out tools, $(u-boot-dirs)): tools 1153# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1154# is "yes"), so compile examples after U-Boot is compiled. 1155examples: $(filter-out examples, $(u-boot-dirs)) 1156 1157define filechk_uboot.release 1158 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1159endef 1160 1161# Store (new) UBOOTRELEASE string in include/config/uboot.release 1162include/config/uboot.release: include/config/auto.conf FORCE 1163 $(call filechk,uboot.release) 1164 1165 1166# Things we need to do before we recursively start building the kernel 1167# or the modules are listed in "prepare". 1168# A multi level approach is used. prepareN is processed before prepareN-1. 1169# archprepare is used in arch Makefiles and when processed asm symlink, 1170# version.h and scripts_basic is processed / created. 1171 1172# Listed in dependency order 1173PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1174 1175# prepare3 is used to check if we are building in a separate output directory, 1176# and if so do: 1177# 1) Check that make has not been executed in the kernel src $(srctree) 1178prepare3: include/config/uboot.release 1179ifneq ($(KBUILD_SRC),) 1180 @$(kecho) ' Using $(srctree) as source for U-Boot' 1181 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1182 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1183 echo >&2 " in the '$(srctree)' directory.";\ 1184 /bin/false; \ 1185 fi; 1186endif 1187 1188# prepare2 creates a makefile if using a separate output directory 1189prepare2: prepare3 outputmakefile 1190 1191prepare1: prepare2 $(version_h) $(timestamp_h) \ 1192 include/config/auto.conf 1193ifeq ($(CONFIG_HAVE_GENERIC_BOARD),) 1194ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1195 @echo >&2 " Your architecture does not support generic board." 1196 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1197 @/bin/false 1198endif 1199endif 1200ifeq ($(wildcard $(LDSCRIPT)),) 1201 @echo >&2 " Could not find linker script." 1202 @/bin/false 1203endif 1204 1205archprepare: prepare1 scripts_basic 1206 1207prepare0: archprepare FORCE 1208 $(Q)$(MAKE) $(build)=. 1209 1210# All the preparing.. 1211prepare: prepare0 1212 1213# Generate some files 1214# --------------------------------------------------------------------------- 1215 1216define filechk_version.h 1217 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1218 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1219 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1220 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1221endef 1222 1223define filechk_timestamp.h 1224 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1225 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1226endef 1227 1228$(version_h): include/config/uboot.release FORCE 1229 $(call filechk,version.h) 1230 1231$(timestamp_h): $(srctree)/Makefile FORCE 1232 $(call filechk,timestamp.h) 1233 1234# --------------------------------------------------------------------------- 1235 1236PHONY += depend dep 1237depend dep: 1238 @echo '*** Warning: make $@ is unnecessary now.' 1239 1240# --------------------------------------------------------------------------- 1241quiet_cmd_cpp_lds = LDS $@ 1242cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1243 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1244 1245u-boot.lds: $(LDSCRIPT) prepare FORCE 1246 $(call if_changed_dep,cpp_lds) 1247 1248spl/u-boot-spl.bin: spl/u-boot-spl 1249 @: 1250spl/u-boot-spl: tools prepare 1251 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1252 1253spl/sunxi-spl.bin: spl/u-boot-spl 1254 @: 1255 1256tpl/u-boot-tpl.bin: tools prepare 1257 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1258 1259TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1260 1261FIND := find 1262FINDFLAGS := -L 1263 1264tags ctags: 1265 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1266 -name '*.[chS]' -print` 1267 1268etags: 1269 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1270 -name '*.[chS]' -print` 1271cscope: 1272 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1273 cscope.files 1274 cscope -b -q -k 1275 1276SYSTEM_MAP = \ 1277 $(NM) $1 | \ 1278 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1279 LC_ALL=C sort 1280System.map: u-boot 1281 @$(call SYSTEM_MAP,$<) > $@ 1282 1283checkdtc: 1284 @if test $(call dtc-version) -lt 0104; then \ 1285 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1286 false; \ 1287 fi 1288 1289######################################################################### 1290 1291# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1292# R_AARCH64_RELATIVE (64-bit). 1293checkarmreloc: u-boot 1294 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1295 grep R_A | sort -u`"; \ 1296 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1297 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1298 echo "$< contains unexpected relocations: $$RELOC"; \ 1299 false; \ 1300 fi 1301 1302env: scripts_basic 1303 $(Q)$(MAKE) $(build)=tools/$@ 1304 1305tools-only: scripts_basic $(version_h) $(timestamp_h) 1306 $(Q)$(MAKE) $(build)=tools 1307 1308tools-all: export HOST_TOOLS_ALL=y 1309tools-all: env tools ; 1310 1311cross_tools: export CROSS_BUILD_TOOLS=y 1312cross_tools: tools ; 1313 1314.PHONY : CHANGELOG 1315CHANGELOG: 1316 git log --no-merges U-Boot-1_1_5.. | \ 1317 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1318 1319include/license.h: tools/bin2header COPYING 1320 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1321######################################################################### 1322 1323### 1324# Cleaning is done on three levels. 1325# make clean Delete most generated files 1326# Leave enough to build external modules 1327# make mrproper Delete the current configuration, and all generated files 1328# make distclean Remove editor backup files, patch leftover files and the like 1329 1330# Directories & files removed with 'make clean' 1331CLEAN_DIRS += $(MODVERDIR) \ 1332 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1333 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1334 1335CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1336 boot* u-boot* MLO* SPL System.map 1337 1338# Directories & files removed with 'make mrproper' 1339MRPROPER_DIRS += include/config include/generated spl tpl \ 1340 .tmp_objdiff 1341MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1342 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1343 1344# clean - Delete most, but leave enough to build external modules 1345# 1346clean: rm-dirs := $(CLEAN_DIRS) 1347clean: rm-files := $(CLEAN_FILES) 1348 1349clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1350 1351clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1352 1353PHONY += $(clean-dirs) clean archclean 1354$(clean-dirs): 1355 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1356 1357# TODO: Do not use *.cfgtmp 1358clean: $(clean-dirs) 1359 $(call cmd,rmdirs) 1360 $(call cmd,rmfiles) 1361 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1362 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1363 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1364 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1365 -o -name '*.symtypes' -o -name 'modules.order' \ 1366 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1367 -o -name '*.gcno' \) -type f -print | xargs rm -f 1368 1369# mrproper - Delete all generated files, including .config 1370# 1371mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1372mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1373mrproper-dirs := $(addprefix _mrproper_,scripts) 1374 1375PHONY += $(mrproper-dirs) mrproper archmrproper 1376$(mrproper-dirs): 1377 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1378 1379mrproper: clean $(mrproper-dirs) 1380 $(call cmd,rmdirs) 1381 $(call cmd,rmfiles) 1382 @rm -f arch/*/include/asm/arch 1383 1384# distclean 1385# 1386PHONY += distclean 1387 1388distclean: mrproper 1389 @find $(srctree) $(RCS_FIND_IGNORE) \ 1390 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1391 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1392 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1393 -o -name '*.pyc' \) \ 1394 -type f -print | xargs rm -f 1395 @rm -f boards.cfg 1396 1397backup: 1398 F=`basename $(srctree)` ; cd .. ; \ 1399 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1400 1401help: 1402 @echo 'Cleaning targets:' 1403 @echo ' clean - Remove most generated files but keep the config' 1404 @echo ' mrproper - Remove all generated files + config + various backup files' 1405 @echo ' distclean - mrproper + remove editor backup and patch files' 1406 @echo '' 1407 @echo 'Configuration targets:' 1408 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1409 @echo '' 1410 @echo 'Other generic targets:' 1411 @echo ' all - Build all necessary images depending on configuration' 1412 @echo '* u-boot - Build the bare u-boot' 1413 @echo ' dir/ - Build all files in dir and below' 1414 @echo ' dir/file.[oisS] - Build specified target only' 1415 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1416 @echo ' (requires a recent binutils and recent build (System.map))' 1417 @echo ' tags/ctags - Generate ctags file for editors' 1418 @echo ' etags - Generate etags file for editors' 1419 @echo ' cscope - Generate cscope index' 1420 @echo ' ubootrelease - Output the release version string (use with make -s)' 1421 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1422 @echo '' 1423 @echo 'Static analysers' 1424 @echo ' checkstack - Generate a list of stack hogs' 1425 @echo '' 1426 @echo 'Documentation targets:' 1427 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1428 @echo '' 1429 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1430 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1431 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1432 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1433 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1434 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1435 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1436 @echo ' 1: warnings which may be relevant and do not occur too often' 1437 @echo ' 2: warnings which occur quite often but may still be relevant' 1438 @echo ' 3: more obscure warnings, can most likely be ignored' 1439 @echo ' Multiple levels can be combined with W=12 or W=123' 1440 @echo '' 1441 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1442 @echo 'For further info see the ./README file' 1443 1444 1445# Documentation targets 1446# --------------------------------------------------------------------------- 1447%docs: scripts_basic FORCE 1448 $(Q)$(MAKE) $(build)=scripts build_docproc 1449 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1450 1451# Dummies... 1452PHONY += prepare scripts 1453prepare: ; 1454scripts: ; 1455 1456endif #ifeq ($(config-targets),1) 1457endif #ifeq ($(mixed-targets),1) 1458 1459PHONY += checkstack ubootrelease ubootversion 1460 1461checkstack: 1462 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1463 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1464 1465ubootrelease: 1466 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1467 1468ubootversion: 1469 @echo $(UBOOTVERSION) 1470 1471# Single targets 1472# --------------------------------------------------------------------------- 1473# Single targets are compatible with: 1474# - build with mixed source and output 1475# - build with separate output dir 'make O=...' 1476# - external modules 1477# 1478# target-dir => where to store outputfile 1479# build-dir => directory in kernel source tree to use 1480 1481ifeq ($(KBUILD_EXTMOD),) 1482 build-dir = $(patsubst %/,%,$(dir $@)) 1483 target-dir = $(dir $@) 1484else 1485 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1486 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1487 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1488endif 1489 1490%.s: %.c prepare scripts FORCE 1491 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1492%.i: %.c prepare scripts FORCE 1493 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1494%.o: %.c prepare scripts FORCE 1495 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1496%.lst: %.c prepare scripts FORCE 1497 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1498%.s: %.S prepare scripts FORCE 1499 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1500%.o: %.S prepare scripts FORCE 1501 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1502%.symtypes: %.c prepare scripts FORCE 1503 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1504 1505# Modules 1506/: prepare scripts FORCE 1507 $(cmd_crmodverdir) 1508 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1509 $(build)=$(build-dir) 1510%/: prepare scripts FORCE 1511 $(cmd_crmodverdir) 1512 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1513 $(build)=$(build-dir) 1514%.ko: prepare scripts FORCE 1515 $(cmd_crmodverdir) 1516 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1517 $(build)=$(build-dir) $(@:.ko=.o) 1518 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1519 1520# FIXME Should go into a make.lib or something 1521# =========================================================================== 1522 1523quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1524 cmd_rmdirs = rm -rf $(rm-dirs) 1525 1526quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1527 cmd_rmfiles = rm -f $(rm-files) 1528 1529# read all saved command lines 1530 1531targets := $(wildcard $(sort $(targets))) 1532cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1533 1534ifneq ($(cmd_files),) 1535 $(cmd_files): ; # Do not try to update included dependency files 1536 include $(cmd_files) 1537endif 1538 1539# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1540# Usage: 1541# $(Q)$(MAKE) $(clean)=dir 1542clean := -f $(srctree)/scripts/Makefile.clean obj 1543 1544endif # skip-makefile 1545 1546PHONY += FORCE 1547FORCE: 1548 1549# Declare the contents of the .PHONY variable as phony. We keep that 1550# information in a variable so we can use it in if_changed and friends. 1551.PHONY: $(PHONY) 1552