1VERSION = 2015 2PATCHLEVEL = 10 3SUBLEVEL = 4EXTRAVERSION = -rc1 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# o Do not use make's built-in rules and variables 14# (this increases performance and avoids hard-to-debug behaviour); 15# o Look for make include files relative to root of kernel src 16MAKEFLAGS += -rR --include-dir=$(CURDIR) 17 18# Avoid funny character set dependencies 19unexport LC_ALL 20LC_COLLATE=C 21LC_NUMERIC=C 22export LC_COLLATE LC_NUMERIC 23 24# Avoid interference with shell env settings 25unexport GREP_OPTIONS 26 27# We are using a recursive build, so we need to do a little thinking 28# to get the ordering right. 29# 30# Most importantly: sub-Makefiles should only ever modify files in 31# their own directory. If in some directory we have a dependency on 32# a file in another dir (which doesn't happen often, but it's often 33# unavoidable when linking the built-in.o targets which finally 34# turn into vmlinux), we will call a sub make in that other dir, and 35# after that we are sure that everything which is in that other dir 36# is now up to date. 37# 38# The only cases where we need to modify files which have global 39# effects are thus separated out and done before the recursive 40# descending is started. They are now explicitly listed as the 41# prepare rule. 42 43# Beautify output 44# --------------------------------------------------------------------------- 45# 46# Normally, we echo the whole command before executing it. By making 47# that echo $($(quiet)$(cmd)), we now have the possibility to set 48# $(quiet) to choose other forms of output instead, e.g. 49# 50# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 51# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 52# 53# If $(quiet) is empty, the whole command will be printed. 54# If it is set to "quiet_", only the short version will be printed. 55# If it is set to "silent_", nothing will be printed at all, since 56# the variable $(silent_cmd_cc_o_c) doesn't exist. 57# 58# A simple variant is to prefix commands with $(Q) - that's useful 59# for commands that shall be hidden in non-verbose mode. 60# 61# $(Q)ln $@ :< 62# 63# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 64# If KBUILD_VERBOSE equals 1 then the above command is displayed. 65# 66# To put more focus on warnings, be less verbose as default 67# Use 'make V=1' to see the full commands 68 69ifeq ("$(origin V)", "command line") 70 KBUILD_VERBOSE = $(V) 71endif 72ifndef KBUILD_VERBOSE 73 KBUILD_VERBOSE = 0 74endif 75 76ifeq ($(KBUILD_VERBOSE),1) 77 quiet = 78 Q = 79else 80 quiet=quiet_ 81 Q = @ 82endif 83 84# If the user is running make -s (silent mode), suppress echoing of 85# commands 86 87ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 88ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 89 quiet=silent_ 90endif 91else # make-3.8x 92ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 93 quiet=silent_ 94endif 95endif 96 97export quiet Q KBUILD_VERBOSE 98 99# kbuild supports saving output files in a separate directory. 100# To locate output files in a separate directory two syntaxes are supported. 101# In both cases the working directory must be the root of the kernel src. 102# 1) O= 103# Use "make O=dir/to/store/output/files/" 104# 105# 2) Set KBUILD_OUTPUT 106# Set the environment variable KBUILD_OUTPUT to point to the directory 107# where the output files shall be placed. 108# export KBUILD_OUTPUT=dir/to/store/output/files/ 109# make 110# 111# The O= assignment takes precedence over the KBUILD_OUTPUT environment 112# variable. 113 114# KBUILD_SRC is set on invocation of make in OBJ directory 115# KBUILD_SRC is not intended to be used by the regular user (for now) 116ifeq ($(KBUILD_SRC),) 117 118# OK, Make called in directory where kernel src resides 119# Do we want to locate output files in a separate directory? 120ifeq ("$(origin O)", "command line") 121 KBUILD_OUTPUT := $(O) 122endif 123 124# That's our default target when none is given on the command line 125PHONY := _all 126_all: 127 128# Cancel implicit rules on top Makefile 129$(CURDIR)/Makefile Makefile: ; 130 131ifneq ($(KBUILD_OUTPUT),) 132# Invoke a second make in the output directory, passing relevant variables 133# check that the output directory actually exists 134saved-output := $(KBUILD_OUTPUT) 135KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 136 && /bin/pwd) 137$(if $(KBUILD_OUTPUT),, \ 138 $(error failed to create output directory "$(saved-output)")) 139 140PHONY += $(MAKECMDGOALS) sub-make 141 142$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 143 @: 144 145sub-make: FORCE 146 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 147 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 148 149# Leave processing to above invocation of make 150skip-makefile := 1 151endif # ifneq ($(KBUILD_OUTPUT),) 152endif # ifeq ($(KBUILD_SRC),) 153 154# We process the rest of the Makefile if this is the final invocation of make 155ifeq ($(skip-makefile),) 156 157# Do not print "Entering directory ...", 158# but we want to display it when entering to the output directory 159# so that IDEs/editors are able to understand relative filenames. 160MAKEFLAGS += --no-print-directory 161 162# Call a source code checker (by default, "sparse") as part of the 163# C compilation. 164# 165# Use 'make C=1' to enable checking of only re-compiled files. 166# Use 'make C=2' to enable checking of *all* source files, regardless 167# of whether they are re-compiled or not. 168# 169# See the file "Documentation/sparse.txt" for more details, including 170# where to get the "sparse" utility. 171 172ifeq ("$(origin C)", "command line") 173 KBUILD_CHECKSRC = $(C) 174endif 175ifndef KBUILD_CHECKSRC 176 KBUILD_CHECKSRC = 0 177endif 178 179# Use make M=dir to specify directory of external module to build 180# Old syntax make ... SUBDIRS=$PWD is still supported 181# Setting the environment variable KBUILD_EXTMOD take precedence 182ifdef SUBDIRS 183 KBUILD_EXTMOD ?= $(SUBDIRS) 184endif 185 186ifeq ("$(origin M)", "command line") 187 KBUILD_EXTMOD := $(M) 188endif 189 190# If building an external module we do not care about the all: rule 191# but instead _all depend on modules 192PHONY += all 193ifeq ($(KBUILD_EXTMOD),) 194_all: all 195else 196_all: modules 197endif 198 199ifeq ($(KBUILD_SRC),) 200 # building in the source tree 201 srctree := . 202else 203 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 204 # building in a subdirectory of the source tree 205 srctree := .. 206 else 207 srctree := $(KBUILD_SRC) 208 endif 209endif 210objtree := . 211src := $(srctree) 212obj := $(objtree) 213 214VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 215 216export srctree objtree VPATH 217 218# Make sure CDPATH settings don't interfere 219unexport CDPATH 220 221######################################################################### 222 223HOSTARCH := $(shell uname -m | \ 224 sed -e s/i.86/x86/ \ 225 -e s/sun4u/sparc64/ \ 226 -e s/arm.*/arm/ \ 227 -e s/sa110/arm/ \ 228 -e s/ppc64/powerpc/ \ 229 -e s/ppc/powerpc/ \ 230 -e s/macppc/powerpc/\ 231 -e s/sh.*/sh/) 232 233HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 234 sed -e 's/\(cygwin\).*/cygwin/') 235 236export HOSTARCH HOSTOS 237 238######################################################################### 239 240# set default to nothing for native builds 241ifeq ($(HOSTARCH),$(ARCH)) 242CROSS_COMPILE ?= 243endif 244 245KCONFIG_CONFIG ?= .config 246export KCONFIG_CONFIG 247 248# SHELL used by kbuild 249CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 250 else if [ -x /bin/bash ]; then echo /bin/bash; \ 251 else echo sh; fi ; fi) 252 253HOSTCC = cc 254HOSTCXX = c++ 255HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 256HOSTCXXFLAGS = -O2 257 258ifeq ($(HOSTOS),cygwin) 259HOSTCFLAGS += -ansi 260endif 261 262# Mac OS X / Darwin's C preprocessor is Apple specific. It 263# generates numerous errors and warnings. We want to bypass it 264# and use GNU C's cpp. To do this we pass the -traditional-cpp 265# option to the compiler. Note that the -traditional-cpp flag 266# DOES NOT have the same semantics as GNU C's flag, all it does 267# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 268# 269# Apple's linker is similar, thanks to the new 2 stage linking 270# multiple symbol definitions are treated as errors, hence the 271# -multiply_defined suppress option to turn off this error. 272# 273ifeq ($(HOSTOS),darwin) 274# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 275DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 276DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 277 278os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 279 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 280 281# Snow Leopards build environment has no longer restrictions as described above 282HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 283HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 284HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 285 286# since Lion (10.7) ASLR is on by default, but we use linker generated lists 287# in some host tools which is a problem then ... so disable ASLR for these 288# tools 289HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 290endif 291 292# Decide whether to build built-in, modular, or both. 293# Normally, just do built-in. 294 295KBUILD_MODULES := 296KBUILD_BUILTIN := 1 297 298# If we have only "make modules", don't compile built-in objects. 299# When we're building modules with modversions, we need to consider 300# the built-in objects during the descend as well, in order to 301# make sure the checksums are up to date before we record them. 302 303ifeq ($(MAKECMDGOALS),modules) 304 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 305endif 306 307# If we have "make <whatever> modules", compile modules 308# in addition to whatever we do anyway. 309# Just "make" or "make all" shall build modules as well 310 311# U-Boot does not need modules 312#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 313# KBUILD_MODULES := 1 314#endif 315 316#ifeq ($(MAKECMDGOALS),) 317# KBUILD_MODULES := 1 318#endif 319 320export KBUILD_MODULES KBUILD_BUILTIN 321export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 322 323# We need some generic definitions (do not try to remake the file). 324scripts/Kbuild.include: ; 325include scripts/Kbuild.include 326 327# Make variables (CC, etc...) 328 329AS = $(CROSS_COMPILE)as 330# Always use GNU ld 331ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 332LD = $(CROSS_COMPILE)ld.bfd 333else 334LD = $(CROSS_COMPILE)ld 335endif 336CC = $(CROSS_COMPILE)gcc 337CPP = $(CC) -E 338AR = $(CROSS_COMPILE)ar 339NM = $(CROSS_COMPILE)nm 340LDR = $(CROSS_COMPILE)ldr 341STRIP = $(CROSS_COMPILE)strip 342OBJCOPY = $(CROSS_COMPILE)objcopy 343OBJDUMP = $(CROSS_COMPILE)objdump 344AWK = awk 345PERL = perl 346PYTHON = python 347DTC = dtc 348CHECK = sparse 349 350CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 351 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 352 353KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 354 355KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 356 -Wno-format-security \ 357 -fno-builtin -ffreestanding 358KBUILD_AFLAGS := -D__ASSEMBLY__ 359 360# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 361UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 362UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 363 364export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 365export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 366export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 367export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 368export MAKE AWK PERL PYTHON 369export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 370 371export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 372export KBUILD_CFLAGS KBUILD_AFLAGS 373 374# When compiling out-of-tree modules, put MODVERDIR in the module 375# tree rather than in the kernel tree. The kernel tree might 376# even be read-only. 377export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 378 379# Files to ignore in find ... statements 380 381export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 382 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 383 -prune -o 384export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 385 --exclude CVS --exclude .pc --exclude .hg --exclude .git 386 387# =========================================================================== 388# Rules shared between *config targets and build targets 389 390# Basic helpers built in scripts/ 391PHONY += scripts_basic 392scripts_basic: 393 $(Q)$(MAKE) $(build)=scripts/basic 394 $(Q)rm -f .tmp_quiet_recordmcount 395 396# To avoid any implicit rule to kick in, define an empty command. 397scripts/basic/%: scripts_basic ; 398 399PHONY += outputmakefile 400# outputmakefile generates a Makefile in the output directory, if using a 401# separate output directory. This allows convenient use of make in the 402# output directory. 403outputmakefile: 404ifneq ($(KBUILD_SRC),) 405 $(Q)ln -fsn $(srctree) source 406 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 407 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 408endif 409 410# To make sure we do not include .config for any of the *config targets 411# catch them early, and hand them over to scripts/kconfig/Makefile 412# It is allowed to specify more targets when calling make, including 413# mixing *config targets and build targets. 414# For example 'make oldconfig all'. 415# Detect when mixed targets is specified, and make a second invocation 416# of make so .config is not included in this case either (for *config). 417 418version_h := include/generated/version_autogenerated.h 419timestamp_h := include/generated/timestamp_autogenerated.h 420 421no-dot-config-targets := clean clobber mrproper distclean \ 422 help %docs check% coccicheck \ 423 ubootversion backup 424 425config-targets := 0 426mixed-targets := 0 427dot-config := 1 428 429ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 430 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 431 dot-config := 0 432 endif 433endif 434 435ifeq ($(KBUILD_EXTMOD),) 436 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 437 config-targets := 1 438 ifneq ($(words $(MAKECMDGOALS)),1) 439 mixed-targets := 1 440 endif 441 endif 442endif 443 444ifeq ($(mixed-targets),1) 445# =========================================================================== 446# We're called with mixed targets (*config and build targets). 447# Handle them one by one. 448 449PHONY += $(MAKECMDGOALS) __build_one_by_one 450 451$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 452 @: 453 454__build_one_by_one: 455 $(Q)set -e; \ 456 for i in $(MAKECMDGOALS); do \ 457 $(MAKE) -f $(srctree)/Makefile $$i; \ 458 done 459 460else 461ifeq ($(config-targets),1) 462# =========================================================================== 463# *config targets only - make sure prerequisites are updated, and descend 464# in scripts/kconfig to make the *config target 465 466KBUILD_DEFCONFIG := sandbox_defconfig 467export KBUILD_DEFCONFIG KBUILD_KCONFIG 468 469config: scripts_basic outputmakefile FORCE 470 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 471 472%config: scripts_basic outputmakefile FORCE 473 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 474 475else 476# =========================================================================== 477# Build targets only - this includes vmlinux, arch specific targets, clean 478# targets and others. In general all targets except *config targets. 479 480ifeq ($(dot-config),1) 481# Read in config 482-include include/config/auto.conf 483 484# Read in dependencies to all Kconfig* files, make sure to run 485# oldconfig if changes are detected. 486-include include/config/auto.conf.cmd 487 488# To avoid any implicit rule to kick in, define an empty command 489$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 490 491# If .config is newer than include/config/auto.conf, someone tinkered 492# with it and forgot to run make oldconfig. 493# if auto.conf.cmd is missing then we are probably in a cleaned tree so 494# we execute the config step to be sure to catch updated Kconfig files 495include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 496 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 497 @# If the following part fails, include/config/auto.conf should be 498 @# deleted so "make silentoldconfig" will be re-run on the next build. 499 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 500 { rm -f include/config/auto.conf; false; } 501 @# include/config.h has been updated after "make silentoldconfig". 502 @# We need to touch include/config/auto.conf so it gets newer 503 @# than include/config.h. 504 @# Otherwise, 'make silentoldconfig' would be invoked twice. 505 $(Q)touch include/config/auto.conf 506 507-include include/autoconf.mk 508-include include/autoconf.mk.dep 509 510# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 511# is up-to-date. When we switch to a different board configuration, old CONFIG 512# macros are still remaining in include/config/auto.conf. Without the following 513# gimmick, wrong config.mk would be included leading nasty warnings/errors. 514ifneq ($(wildcard $(KCONFIG_CONFIG)),) 515ifneq ($(wildcard include/config/auto.conf),) 516autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 517 include/config/auto.conf) 518ifeq ($(autoconf_is_old),) 519include config.mk 520include arch/$(ARCH)/Makefile 521endif 522endif 523endif 524 525# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 526# that (or fail if absent). Otherwise, search for a linker script in a 527# standard location. 528 529ifndef LDSCRIPT 530 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 531 ifdef CONFIG_SYS_LDSCRIPT 532 # need to strip off double quotes 533 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 534 endif 535endif 536 537# If there is no specified link script, we look in a number of places for it 538ifndef LDSCRIPT 539 ifeq ($(wildcard $(LDSCRIPT)),) 540 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 541 endif 542 ifeq ($(wildcard $(LDSCRIPT)),) 543 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 544 endif 545 ifeq ($(wildcard $(LDSCRIPT)),) 546 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 547 endif 548endif 549 550else 551# Dummy target needed, because used as prerequisite 552include/config/auto.conf: ; 553endif # $(dot-config) 554 555ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 556KBUILD_CFLAGS += -Os 557else 558KBUILD_CFLAGS += -O2 559endif 560 561ifdef BUILD_TAG 562KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 563endif 564 565KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 566KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 567 568KBUILD_CFLAGS += -g 569# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 570# option to the assembler. 571KBUILD_AFLAGS += -g 572 573# Report stack usage if supported 574ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 575 KBUILD_CFLAGS += -fstack-usage 576endif 577 578KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 579 580# turn jbsr into jsr for m68k 581ifeq ($(ARCH),m68k) 582ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 583KBUILD_AFLAGS += -Wa,-gstabs,-S 584endif 585endif 586 587# Prohibit date/time macros, which would make the build non-deterministic 588KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 589 590ifneq ($(CONFIG_SYS_TEXT_BASE),) 591KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 592endif 593 594export CONFIG_SYS_TEXT_BASE 595 596include scripts/Makefile.extrawarn 597 598# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 599KBUILD_CPPFLAGS += $(KCPPFLAGS) 600KBUILD_AFLAGS += $(KAFLAGS) 601KBUILD_CFLAGS += $(KCFLAGS) 602 603# Use UBOOTINCLUDE when you must reference the include/ directory. 604# Needed to be compatible with the O= option 605UBOOTINCLUDE := \ 606 -Iinclude \ 607 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 608 -I$(srctree)/arch/$(ARCH)/include \ 609 -include $(srctree)/include/linux/kconfig.h 610 611NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 612CHECKFLAGS += $(NOSTDINC_FLAGS) 613 614# FIX ME 615cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 616 $(NOSTDINC_FLAGS) 617c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 618 619######################################################################### 620# U-Boot objects....order is important (i.e. start must be first) 621 622HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 623 624libs-y += lib/ 625libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 626libs-$(CONFIG_OF_EMBED) += dts/ 627libs-y += fs/ 628libs-y += net/ 629libs-y += disk/ 630libs-y += drivers/ 631libs-y += drivers/dma/ 632libs-y += drivers/gpio/ 633libs-y += drivers/i2c/ 634libs-y += drivers/mmc/ 635libs-y += drivers/mtd/ 636libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 637libs-y += drivers/mtd/onenand/ 638libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 639libs-y += drivers/mtd/spi/ 640libs-y += drivers/net/ 641libs-y += drivers/net/phy/ 642libs-y += drivers/pci/ 643libs-y += drivers/power/ \ 644 drivers/power/fuel_gauge/ \ 645 drivers/power/mfd/ \ 646 drivers/power/pmic/ \ 647 drivers/power/battery/ \ 648 drivers/power/regulator/ 649libs-y += drivers/spi/ 650libs-$(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-$(CONFIG_HAS_POST) += post/ 666libs-y += test/ 667libs-y += test/dm/ 668libs-$(CONFIG_UT_ENV) += test/env/ 669 670libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 671 672libs-y := $(sort $(libs-y)) 673 674u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 675 676u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 677 678libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 679 680u-boot-init := $(head-y) 681u-boot-main := $(libs-y) 682 683 684# Add GCC lib 685ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 686PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 687else 688PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 689endif 690PLATFORM_LIBS += $(PLATFORM_LIBGCC) 691export PLATFORM_LIBS 692export PLATFORM_LIBGCC 693 694# Special flags for CPP when processing the linker script. 695# Pass the version down so we can handle backwards compatibility 696# on the fly. 697LDPPFLAGS += \ 698 -include $(srctree)/include/u-boot/u-boot.lds.h \ 699 -DCPUDIR=$(CPUDIR) \ 700 $(shell $(LD) --version | \ 701 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 702 703######################################################################### 704######################################################################### 705 706ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 707BOARD_SIZE_CHECK = \ 708 @actual=`wc -c $@ | awk '{print $$1}'`; \ 709 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 710 if test $$actual -gt $$limit; then \ 711 echo "$@ exceeds file size limit:" >&2 ; \ 712 echo " limit: $$limit bytes" >&2 ; \ 713 echo " actual: $$actual bytes" >&2 ; \ 714 echo " excess: $$((actual - limit)) bytes" >&2; \ 715 exit 1; \ 716 fi 717else 718BOARD_SIZE_CHECK = 719endif 720 721# Statically apply RELA-style relocations (currently arm64 only) 722ifneq ($(CONFIG_STATIC_RELA),) 723# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 724DO_STATIC_RELA = \ 725 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 726 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 727 tools/relocate-rela $(2) $(3) $$start $$end 728else 729DO_STATIC_RELA = 730endif 731 732# Always append ALL so that arch config.mk's can add custom ones 733ALL-y += u-boot.srec u-boot.bin System.map u-boot.cfg binary_size_check 734 735ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 736ifeq ($(CONFIG_SPL_FSL_PBL),y) 737ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 738else 739ifneq ($(CONFIG_SECURE_BOOT), y) 740# For Secure Boot The Image needs to be signed and Header must also 741# be included. So The image has to be built explicitly 742ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 743endif 744endif 745ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 746ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 747ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 748ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 749ifeq ($(CONFIG_SPL_FRAMEWORK),y) 750ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 751endif 752ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 753ifneq ($(CONFIG_SPL_TARGET),) 754ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 755endif 756ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 757ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 758 759ifneq ($(BUILD_ROM),) 760ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 761endif 762 763# enable combined SPL/u-boot/dtb rules for tegra 764ifneq ($(CONFIG_TEGRA),) 765ifeq ($(CONFIG_SPL),y) 766ifeq ($(CONFIG_OF_SEPARATE),y) 767ALL-y += u-boot-dtb-tegra.bin 768else 769ALL-y += u-boot-nodtb-tegra.bin 770endif 771endif 772endif 773 774# Add optional build target if defined in board/cpu/soc headers 775ifneq ($(CONFIG_BUILD_TARGET),) 776ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 777endif 778 779LDFLAGS_u-boot += $(LDFLAGS_FINAL) 780ifneq ($(CONFIG_SYS_TEXT_BASE),) 781LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 782endif 783 784# Normally we fill empty space with 0xff 785quiet_cmd_objcopy = OBJCOPY $@ 786cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 787 $(OBJCOPYFLAGS_$(@F)) $< $@ 788 789# Provide a version which does not do this, for use by EFI 790quiet_cmd_zobjcopy = OBJCOPY $@ 791cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 792 793quiet_cmd_mkimage = MKIMAGE $@ 794cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 795 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 796 797quiet_cmd_cat = CAT $@ 798cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 799 800append = cat $(filter-out $< $(PHONY), $^) >> $@ 801 802quiet_cmd_pad_cat = CAT $@ 803cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 804 805all: $(ALL-y) 806ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 807 @echo "===================== WARNING ======================" 808 @echo "Please convert this board to generic board." 809 @echo "Otherwise it will be removed by the end of 2014." 810 @echo "See doc/README.generic-board for further information" 811 @echo "====================================================" 812endif 813ifeq ($(CONFIG_DM_I2C_COMPAT),y) 814 @echo "===================== WARNING ======================" 815 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 816 @echo "(possibly in a subsequent patch in your series)" 817 @echo "before sending patches to the mailing list." 818 @echo "====================================================" 819endif 820 821PHONY += dtbs 822dtbs dts/dt.dtb: checkdtc u-boot 823 $(Q)$(MAKE) $(build)=dts dtbs 824 825u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 826 $(call if_changed,cat) 827 828%.imx: %.bin 829 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 830 831quiet_cmd_copy = COPY $@ 832 cmd_copy = cp $< $@ 833 834u-boot.dtb: dts/dt.dtb 835 $(call cmd,copy) 836 837OBJCOPYFLAGS_u-boot.hex := -O ihex 838 839OBJCOPYFLAGS_u-boot.srec := -O srec 840 841u-boot.hex u-boot.srec: u-boot FORCE 842 $(call if_changed,objcopy) 843 844OBJCOPYFLAGS_u-boot.bin := -O binary \ 845 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 846 847binary_size_check: u-boot.bin FORCE 848 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 849 map_size=$(shell cat u-boot.map | \ 850 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 851 | sed 's/0X//g' \ 852 | bc); \ 853 if [ "" != "$$map_size" ]; then \ 854 if test $$map_size -ne $$file_size; then \ 855 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 856 echo " but u-boot.bin shows $$file_size" >&2 ; \ 857 exit 1; \ 858 fi \ 859 fi 860 861u-boot.bin: u-boot FORCE 862 $(call if_changed,objcopy) 863 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 864 $(BOARD_SIZE_CHECK) 865 866u-boot.ldr: u-boot 867 $(CREATE_LDR_ENV) 868 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 869 $(BOARD_SIZE_CHECK) 870 871OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 872 873OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 874 875u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 876 $(call if_changed,objcopy) 877 878# 879# U-Boot entry point, needed for booting of full-blown U-Boot 880# from the SPL U-Boot version. 881# 882ifndef CONFIG_SYS_UBOOT_START 883CONFIG_SYS_UBOOT_START := 0 884endif 885 886# Create a file containing the configuration options the image was built with 887quiet_cmd_cpp_cfg = CFG $@ 888cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 889 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 890 891MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 892 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 893 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 894 895MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 896 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 897 898MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 899 -T kwbimage -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) 900 901MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 902 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 903 904u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 905 $(call if_changed,mkimage) 906 907u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 908 $(call if_changed,mkimage) 909 910MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 911 912u-boot-dtb.img: u-boot-dtb.bin FORCE 913 $(call if_changed,mkimage) 914 915u-boot.sha1: u-boot.bin 916 tools/ubsha1 u-boot.bin 917 918u-boot.dis: u-boot 919 $(OBJDUMP) -d $< > $@ 920 921u-boot.cfg: include/config.h 922 $(call if_changed,cpp_cfg) 923 924ifdef CONFIG_TPL 925SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 926else 927SPL_PAYLOAD := u-boot.bin 928endif 929 930OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 931 --pad-to=$(CONFIG_SPL_PAD_TO) 932u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 933 $(call if_changed,pad_cat) 934 935MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 936 937lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 938 $(call if_changed,mkimage) 939 940OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 941 942lpc32xx-boot-0.bin: lpc32xx-spl.img 943 $(call if_changed,objcopy) 944 945OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 946 947lpc32xx-boot-1.bin: lpc32xx-spl.img 948 $(call if_changed,objcopy) 949 950lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img 951 $(call if_changed,cat) 952 953CLEAN_FILES += lpc32xx-* 954 955OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 956 --pad-to=$(CONFIG_TPL_PAD_TO) 957tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 958 $(call if_changed,pad_cat) 959 960SPL: spl/u-boot-spl.bin FORCE 961 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 962 963u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 964 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 965 966MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 967 968u-boot.ubl: u-boot-with-spl.bin FORCE 969 $(call if_changed,mkimage) 970 971MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 972 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 973 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 974spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 975 $(call if_changed,mkimage) 976 977OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 978u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 979 $(call if_changed,pad_cat) 980 981u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 982 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 983u-boot.sb: u-boot.bin spl/u-boot-spl.bin 984 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 985 986# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 987# Both images are created using mkimage (crc etc), so that the ROM 988# bootloader can check its integrity. Padding needs to be done to the 989# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 990# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 991# The resulting image containing both U-Boot images is called u-boot.spr 992MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 993 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 994spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 995 $(call if_changed,mkimage) 996 997OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 998 --gap-fill=0xff 999u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1000 $(call if_changed,pad_cat) 1001 1002MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 1003 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 1004spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 1005 $(call if_changed,mkimage) 1006 1007OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1008 --gap-fill=0 1009u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 1010 $(call if_changed,pad_cat) 1011 1012MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 1013 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 1014u-boot-nand.gph: u-boot.bin FORCE 1015 $(call if_changed,mkimage) 1016 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 1017 1018# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1019# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1020# the middle. 1021ifneq ($(CONFIG_X86_RESET_VECTOR),) 1022rom: u-boot.rom FORCE 1023 1024IFDTOOL=$(objtree)/tools/ifdtool 1025IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1026IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1027IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin 1028IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1029 1030ifneq ($(CONFIG_HAVE_INTEL_ME),) 1031IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1032IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1033endif 1034 1035ifneq ($(CONFIG_HAVE_MRC),) 1036IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1037endif 1038 1039ifneq ($(CONFIG_HAVE_FSP),) 1040IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1041endif 1042 1043ifneq ($(CONFIG_HAVE_CMC),) 1044IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1045endif 1046 1047ifneq ($(CONFIG_HAVE_VGA_BIOS),) 1048IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE) 1049endif 1050 1051quiet_cmd_ifdtool = IFDTOOL $@ 1052cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1053ifneq ($(CONFIG_HAVE_INTEL_ME),) 1054cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1055endif 1056cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1057cmd_ifdtool += mv u-boot.tmp $@ 1058 1059u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin 1060 $(call if_changed,ifdtool) 1061 1062OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1063u-boot-x86-16bit.bin: u-boot FORCE 1064 $(call if_changed,objcopy) 1065endif 1066 1067ifneq ($(CONFIG_SUNXI),) 1068OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1069 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1070u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \ 1071 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE 1072 $(call if_changed,pad_cat) 1073endif 1074 1075ifneq ($(CONFIG_TEGRA),) 1076OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1077u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1078 $(call if_changed,pad_cat) 1079 1080ifeq ($(CONFIG_OF_SEPARATE),y) 1081u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 1082 $(call if_changed,cat) 1083endif 1084endif 1085 1086OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1087u-boot-app.efi: u-boot FORCE 1088 $(call if_changed,zobjcopy) 1089 1090u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1091 $(call if_changed,cat) 1092 1093#Add a target to create boot binary having SPL binary in PBI format 1094#concatenated with u-boot binary. It is need by PowerPC SoC having 1095#internal SRAM <= 512KB. 1096MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1097 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1098 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1099 1100spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1101 $(call if_changed,mkimage) 1102 1103ifeq ($(ARCH),arm) 1104UBOOT_BINLOAD := u-boot.img 1105else 1106UBOOT_BINLOAD := u-boot.bin 1107endif 1108 1109OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1110 --gap-fill=0xff 1111 1112u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1113 $(call if_changed,pad_cat) 1114 1115# PPC4xx needs the SPL at the end of the image, since the reset vector 1116# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1117# and need to introduce a new build target with the full blown U-Boot 1118# at the start padded up to the start of the SPL image. And then concat 1119# the SPL image to the end. 1120 1121OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1122 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1123u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1124 $(call if_changed,pad_cat) 1125 1126# Create a new ELF from a raw binary file. This is useful for arm64 1127# where static relocation needs to be performed on the raw binary, 1128# but certain simulators only accept an ELF file (but don't do the 1129# relocation). 1130# FIXME refactor dts/Makefile to share target/arch detection 1131u-boot.elf: u-boot.bin 1132 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1133 $< u-boot-elf.o 1134 @$(LD) u-boot-elf.o -o $@ \ 1135 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1136 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1137 1138# Rule to link u-boot 1139# May be overridden by arch/$(ARCH)/config.mk 1140quiet_cmd_u-boot__ ?= LD $@ 1141 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1142 -T u-boot.lds $(u-boot-init) \ 1143 --start-group $(u-boot-main) --end-group \ 1144 $(PLATFORM_LIBS) -Map u-boot.map 1145 1146quiet_cmd_smap = GEN common/system_map.o 1147cmd_smap = \ 1148 smap=`$(call SYSTEM_MAP,u-boot) | \ 1149 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1150 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1151 -c $(srctree)/common/system_map.c -o common/system_map.o 1152 1153u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1154 $(call if_changed,u-boot__) 1155ifeq ($(CONFIG_KALLSYMS),y) 1156 $(call cmd,smap) 1157 $(call cmd,u-boot__) common/system_map.o 1158endif 1159 1160# The actual objects are generated when descending, 1161# make sure no implicit rule kicks in 1162$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1163 1164# Handle descending into subdirectories listed in $(vmlinux-dirs) 1165# Preset locale variables to speed up the build process. Limit locale 1166# tweaks to this spot to avoid wrong language settings when running 1167# make menuconfig etc. 1168# Error messages still appears in the original language 1169 1170PHONY += $(u-boot-dirs) 1171$(u-boot-dirs): prepare scripts 1172 $(Q)$(MAKE) $(build)=$@ 1173 1174tools: prepare 1175# The "tools" are needed early 1176$(filter-out tools, $(u-boot-dirs)): tools 1177# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1178# is "yes"), so compile examples after U-Boot is compiled. 1179examples: $(filter-out examples, $(u-boot-dirs)) 1180 1181define filechk_uboot.release 1182 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1183endef 1184 1185# Store (new) UBOOTRELEASE string in include/config/uboot.release 1186include/config/uboot.release: include/config/auto.conf FORCE 1187 $(call filechk,uboot.release) 1188 1189 1190# Things we need to do before we recursively start building the kernel 1191# or the modules are listed in "prepare". 1192# A multi level approach is used. prepareN is processed before prepareN-1. 1193# archprepare is used in arch Makefiles and when processed asm symlink, 1194# version.h and scripts_basic is processed / created. 1195 1196# Listed in dependency order 1197PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1198 1199# prepare3 is used to check if we are building in a separate output directory, 1200# and if so do: 1201# 1) Check that make has not been executed in the kernel src $(srctree) 1202prepare3: include/config/uboot.release 1203ifneq ($(KBUILD_SRC),) 1204 @$(kecho) ' Using $(srctree) as source for U-Boot' 1205 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1206 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1207 echo >&2 " in the '$(srctree)' directory.";\ 1208 /bin/false; \ 1209 fi; 1210endif 1211 1212# prepare2 creates a makefile if using a separate output directory 1213prepare2: prepare3 outputmakefile 1214 1215prepare1: prepare2 $(version_h) $(timestamp_h) \ 1216 include/config/auto.conf 1217ifeq ($(CONFIG_HAVE_GENERIC_BOARD),) 1218ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1219 @echo >&2 " Your architecture does not support generic board." 1220 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1221 @/bin/false 1222endif 1223endif 1224ifeq ($(wildcard $(LDSCRIPT)),) 1225 @echo >&2 " Could not find linker script." 1226 @/bin/false 1227endif 1228 1229archprepare: prepare1 scripts_basic 1230 1231prepare0: archprepare FORCE 1232 $(Q)$(MAKE) $(build)=. 1233 1234# All the preparing.. 1235prepare: prepare0 1236 1237# Generate some files 1238# --------------------------------------------------------------------------- 1239 1240define filechk_version.h 1241 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1242 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1243 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1244 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1245endef 1246 1247define filechk_timestamp.h 1248 (SOURCE_DATE="$${SOURCE_DATE_EPOCH:+@$$SOURCE_DATE_EPOCH}"; \ 1249 LC_ALL=C date -u -d "$${SOURCE_DATE:-now}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1250 LC_ALL=C date -u -d "$${SOURCE_DATE:-now}" +'#define U_BOOT_TIME "%T"'; \ 1251 LC_ALL=C date -u -d "$${SOURCE_DATE:-now}" +'#define U_BOOT_TZ "%z"' ) 1252endef 1253 1254$(version_h): include/config/uboot.release FORCE 1255 $(call filechk,version.h) 1256 1257$(timestamp_h): $(srctree)/Makefile FORCE 1258 $(call filechk,timestamp.h) 1259 1260# --------------------------------------------------------------------------- 1261quiet_cmd_cpp_lds = LDS $@ 1262cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1263 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1264 1265u-boot.lds: $(LDSCRIPT) prepare FORCE 1266 $(call if_changed_dep,cpp_lds) 1267 1268spl/u-boot-spl.bin: spl/u-boot-spl 1269 @: 1270spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb) 1271 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1272 1273spl/sunxi-spl.bin: spl/u-boot-spl 1274 @: 1275 1276tpl/u-boot-tpl.bin: tools prepare 1277 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1278 1279TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1280 1281FIND := find 1282FINDFLAGS := -L 1283 1284tags ctags: 1285 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1286 -name '*.[chS]' -print` 1287 ln -s ctags tags 1288 1289etags: 1290 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1291 -name '*.[chS]' -print` 1292cscope: 1293 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1294 cscope.files 1295 cscope -b -q -k 1296 1297SYSTEM_MAP = \ 1298 $(NM) $1 | \ 1299 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1300 LC_ALL=C sort 1301System.map: u-boot 1302 @$(call SYSTEM_MAP,$<) > $@ 1303 1304checkdtc: 1305 @if test $(call dtc-version) -lt 0104; then \ 1306 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1307 false; \ 1308 fi 1309 1310######################################################################### 1311 1312# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1313# R_AARCH64_RELATIVE (64-bit). 1314checkarmreloc: u-boot 1315 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1316 grep R_A | sort -u`"; \ 1317 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1318 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1319 echo "$< contains unexpected relocations: $$RELOC"; \ 1320 false; \ 1321 fi 1322 1323env: scripts_basic 1324 $(Q)$(MAKE) $(build)=tools/$@ 1325 1326tools-only: scripts_basic $(version_h) $(timestamp_h) 1327 $(Q)$(MAKE) $(build)=tools 1328 1329tools-all: export HOST_TOOLS_ALL=y 1330tools-all: env tools ; 1331 1332cross_tools: export CROSS_BUILD_TOOLS=y 1333cross_tools: tools ; 1334 1335.PHONY : CHANGELOG 1336CHANGELOG: 1337 git log --no-merges U-Boot-1_1_5.. | \ 1338 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1339 1340include/license.h: tools/bin2header COPYING 1341 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1342######################################################################### 1343 1344### 1345# Cleaning is done on three levels. 1346# make clean Delete most generated files 1347# Leave enough to build external modules 1348# make mrproper Delete the current configuration, and all generated files 1349# make distclean Remove editor backup files, patch leftover files and the like 1350 1351# Directories & files removed with 'make clean' 1352CLEAN_DIRS += $(MODVERDIR) \ 1353 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1354 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1355 1356CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1357 boot* u-boot* MLO* SPL System.map 1358 1359# Directories & files removed with 'make mrproper' 1360MRPROPER_DIRS += include/config include/generated spl tpl \ 1361 .tmp_objdiff 1362MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1363 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1364 1365# clean - Delete most, but leave enough to build external modules 1366# 1367clean: rm-dirs := $(CLEAN_DIRS) 1368clean: rm-files := $(CLEAN_FILES) 1369 1370clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1371 1372clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1373 1374PHONY += $(clean-dirs) clean archclean 1375$(clean-dirs): 1376 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1377 1378# TODO: Do not use *.cfgtmp 1379clean: $(clean-dirs) 1380 $(call cmd,rmdirs) 1381 $(call cmd,rmfiles) 1382 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1383 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1384 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1385 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1386 -o -name '*.symtypes' -o -name 'modules.order' \ 1387 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1388 -o -name '*.gcno' \) -type f -print | xargs rm -f 1389 1390# mrproper - Delete all generated files, including .config 1391# 1392mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1393mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1394mrproper-dirs := $(addprefix _mrproper_,scripts) 1395 1396PHONY += $(mrproper-dirs) mrproper archmrproper 1397$(mrproper-dirs): 1398 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1399 1400mrproper: clean $(mrproper-dirs) 1401 $(call cmd,rmdirs) 1402 $(call cmd,rmfiles) 1403 @rm -f arch/*/include/asm/arch 1404 1405# distclean 1406# 1407PHONY += distclean 1408 1409distclean: mrproper 1410 @find $(srctree) $(RCS_FIND_IGNORE) \ 1411 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1412 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1413 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1414 -o -name '*.pyc' \) \ 1415 -type f -print | xargs rm -f 1416 @rm -f boards.cfg 1417 1418backup: 1419 F=`basename $(srctree)` ; cd .. ; \ 1420 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1421 1422help: 1423 @echo 'Cleaning targets:' 1424 @echo ' clean - Remove most generated files but keep the config' 1425 @echo ' mrproper - Remove all generated files + config + various backup files' 1426 @echo ' distclean - mrproper + remove editor backup and patch files' 1427 @echo '' 1428 @echo 'Configuration targets:' 1429 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1430 @echo '' 1431 @echo 'Other generic targets:' 1432 @echo ' all - Build all necessary images depending on configuration' 1433 @echo '* u-boot - Build the bare u-boot' 1434 @echo ' dir/ - Build all files in dir and below' 1435 @echo ' dir/file.[oisS] - Build specified target only' 1436 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1437 @echo ' (requires a recent binutils and recent build (System.map))' 1438 @echo ' tags/ctags - Generate ctags file for editors' 1439 @echo ' etags - Generate etags file for editors' 1440 @echo ' cscope - Generate cscope index' 1441 @echo ' ubootrelease - Output the release version string (use with make -s)' 1442 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1443 @echo '' 1444 @echo 'Static analysers' 1445 @echo ' checkstack - Generate a list of stack hogs' 1446 @echo '' 1447 @echo 'Documentation targets:' 1448 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1449 @echo '' 1450 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1451 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1452 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1453 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1454 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1455 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1456 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1457 @echo ' 1: warnings which may be relevant and do not occur too often' 1458 @echo ' 2: warnings which occur quite often but may still be relevant' 1459 @echo ' 3: more obscure warnings, can most likely be ignored' 1460 @echo ' Multiple levels can be combined with W=12 or W=123' 1461 @echo '' 1462 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1463 @echo 'For further info see the ./README file' 1464 1465 1466# Documentation targets 1467# --------------------------------------------------------------------------- 1468%docs: scripts_basic FORCE 1469 $(Q)$(MAKE) $(build)=scripts build_docproc 1470 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1471 1472# Dummies... 1473PHONY += prepare scripts 1474prepare: ; 1475scripts: ; 1476 1477endif #ifeq ($(config-targets),1) 1478endif #ifeq ($(mixed-targets),1) 1479 1480PHONY += checkstack ubootrelease ubootversion 1481 1482checkstack: 1483 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1484 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1485 1486ubootrelease: 1487 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1488 1489ubootversion: 1490 @echo $(UBOOTVERSION) 1491 1492# Single targets 1493# --------------------------------------------------------------------------- 1494# Single targets are compatible with: 1495# - build with mixed source and output 1496# - build with separate output dir 'make O=...' 1497# - external modules 1498# 1499# target-dir => where to store outputfile 1500# build-dir => directory in kernel source tree to use 1501 1502ifeq ($(KBUILD_EXTMOD),) 1503 build-dir = $(patsubst %/,%,$(dir $@)) 1504 target-dir = $(dir $@) 1505else 1506 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1507 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1508 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1509endif 1510 1511%.s: %.c prepare scripts FORCE 1512 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1513%.i: %.c prepare scripts FORCE 1514 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1515%.o: %.c prepare scripts FORCE 1516 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1517%.lst: %.c prepare scripts FORCE 1518 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1519%.s: %.S prepare scripts FORCE 1520 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1521%.o: %.S prepare scripts FORCE 1522 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1523%.symtypes: %.c prepare scripts FORCE 1524 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1525 1526# Modules 1527/: prepare scripts FORCE 1528 $(cmd_crmodverdir) 1529 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1530 $(build)=$(build-dir) 1531%/: prepare scripts FORCE 1532 $(cmd_crmodverdir) 1533 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1534 $(build)=$(build-dir) 1535%.ko: prepare scripts FORCE 1536 $(cmd_crmodverdir) 1537 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1538 $(build)=$(build-dir) $(@:.ko=.o) 1539 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1540 1541# FIXME Should go into a make.lib or something 1542# =========================================================================== 1543 1544quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1545 cmd_rmdirs = rm -rf $(rm-dirs) 1546 1547quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1548 cmd_rmfiles = rm -f $(rm-files) 1549 1550# read all saved command lines 1551 1552targets := $(wildcard $(sort $(targets))) 1553cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1554 1555ifneq ($(cmd_files),) 1556 $(cmd_files): ; # Do not try to update included dependency files 1557 include $(cmd_files) 1558endif 1559 1560endif # skip-makefile 1561 1562PHONY += FORCE 1563FORCE: 1564 1565# Declare the contents of the .PHONY variable as phony. We keep that 1566# information in a variable so we can use it in if_changed and friends. 1567.PHONY: $(PHONY) 1568