1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2016 6PATCHLEVEL = 09 7SUBLEVEL = 8EXTRAVERSION = 9NAME = 10 11# *DOCUMENTATION* 12# To see a list of typical targets execute "make help" 13# More info can be located in ./README 14# Comments in this file are targeted only to the developer, do not 15# expect to learn how to build the kernel reading this file. 16 17# o Do not use make's built-in rules and variables 18# (this increases performance and avoids hard-to-debug behaviour); 19# o Look for make include files relative to root of kernel src 20MAKEFLAGS += -rR --include-dir=$(CURDIR) 21 22# Avoid funny character set dependencies 23unexport LC_ALL 24LC_COLLATE=C 25LC_NUMERIC=C 26export LC_COLLATE LC_NUMERIC 27 28# Avoid interference with shell env settings 29unexport GREP_OPTIONS 30 31# We are using a recursive build, so we need to do a little thinking 32# to get the ordering right. 33# 34# Most importantly: sub-Makefiles should only ever modify files in 35# their own directory. If in some directory we have a dependency on 36# a file in another dir (which doesn't happen often, but it's often 37# unavoidable when linking the built-in.o targets which finally 38# turn into vmlinux), we will call a sub make in that other dir, and 39# after that we are sure that everything which is in that other dir 40# is now up to date. 41# 42# The only cases where we need to modify files which have global 43# effects are thus separated out and done before the recursive 44# descending is started. They are now explicitly listed as the 45# prepare rule. 46 47# Beautify output 48# --------------------------------------------------------------------------- 49# 50# Normally, we echo the whole command before executing it. By making 51# that echo $($(quiet)$(cmd)), we now have the possibility to set 52# $(quiet) to choose other forms of output instead, e.g. 53# 54# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 55# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 56# 57# If $(quiet) is empty, the whole command will be printed. 58# If it is set to "quiet_", only the short version will be printed. 59# If it is set to "silent_", nothing will be printed at all, since 60# the variable $(silent_cmd_cc_o_c) doesn't exist. 61# 62# A simple variant is to prefix commands with $(Q) - that's useful 63# for commands that shall be hidden in non-verbose mode. 64# 65# $(Q)ln $@ :< 66# 67# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 68# If KBUILD_VERBOSE equals 1 then the above command is displayed. 69# 70# To put more focus on warnings, be less verbose as default 71# Use 'make V=1' to see the full commands 72 73ifeq ("$(origin V)", "command line") 74 KBUILD_VERBOSE = $(V) 75endif 76ifndef KBUILD_VERBOSE 77 KBUILD_VERBOSE = 0 78endif 79 80ifeq ($(KBUILD_VERBOSE),1) 81 quiet = 82 Q = 83else 84 quiet=quiet_ 85 Q = @ 86endif 87 88# If the user is running make -s (silent mode), suppress echoing of 89# commands 90 91ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 93 quiet=silent_ 94endif 95else # make-3.8x 96ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 97 quiet=silent_ 98endif 99endif 100 101export quiet Q KBUILD_VERBOSE 102 103# kbuild supports saving output files in a separate directory. 104# To locate output files in a separate directory two syntaxes are supported. 105# In both cases the working directory must be the root of the kernel src. 106# 1) O= 107# Use "make O=dir/to/store/output/files/" 108# 109# 2) Set KBUILD_OUTPUT 110# Set the environment variable KBUILD_OUTPUT to point to the directory 111# where the output files shall be placed. 112# export KBUILD_OUTPUT=dir/to/store/output/files/ 113# make 114# 115# The O= assignment takes precedence over the KBUILD_OUTPUT environment 116# variable. 117 118# KBUILD_SRC is set on invocation of make in OBJ directory 119# KBUILD_SRC is not intended to be used by the regular user (for now) 120ifeq ($(KBUILD_SRC),) 121 122# OK, Make called in directory where kernel src resides 123# Do we want to locate output files in a separate directory? 124ifeq ("$(origin O)", "command line") 125 KBUILD_OUTPUT := $(O) 126endif 127 128# That's our default target when none is given on the command line 129PHONY := _all 130_all: 131 132# Cancel implicit rules on top Makefile 133$(CURDIR)/Makefile Makefile: ; 134 135ifneq ($(KBUILD_OUTPUT),) 136# Invoke a second make in the output directory, passing relevant variables 137# check that the output directory actually exists 138saved-output := $(KBUILD_OUTPUT) 139KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 140 && /bin/pwd) 141$(if $(KBUILD_OUTPUT),, \ 142 $(error failed to create output directory "$(saved-output)")) 143 144PHONY += $(MAKECMDGOALS) sub-make 145 146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 147 @: 148 149sub-make: FORCE 150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 152 153# Leave processing to above invocation of make 154skip-makefile := 1 155endif # ifneq ($(KBUILD_OUTPUT),) 156endif # ifeq ($(KBUILD_SRC),) 157 158# We process the rest of the Makefile if this is the final invocation of make 159ifeq ($(skip-makefile),) 160 161# Do not print "Entering directory ...", 162# but we want to display it when entering to the output directory 163# so that IDEs/editors are able to understand relative filenames. 164MAKEFLAGS += --no-print-directory 165 166# Call a source code checker (by default, "sparse") as part of the 167# C compilation. 168# 169# Use 'make C=1' to enable checking of only re-compiled files. 170# Use 'make C=2' to enable checking of *all* source files, regardless 171# of whether they are re-compiled or not. 172# 173# See the file "Documentation/sparse.txt" for more details, including 174# where to get the "sparse" utility. 175 176ifeq ("$(origin C)", "command line") 177 KBUILD_CHECKSRC = $(C) 178endif 179ifndef KBUILD_CHECKSRC 180 KBUILD_CHECKSRC = 0 181endif 182 183# Use make M=dir to specify directory of external module to build 184# Old syntax make ... SUBDIRS=$PWD is still supported 185# Setting the environment variable KBUILD_EXTMOD take precedence 186ifdef SUBDIRS 187 KBUILD_EXTMOD ?= $(SUBDIRS) 188endif 189 190ifeq ("$(origin M)", "command line") 191 KBUILD_EXTMOD := $(M) 192endif 193 194# If building an external module we do not care about the all: rule 195# but instead _all depend on modules 196PHONY += all 197ifeq ($(KBUILD_EXTMOD),) 198_all: all 199else 200_all: modules 201endif 202 203ifeq ($(KBUILD_SRC),) 204 # building in the source tree 205 srctree := . 206else 207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 # building in a subdirectory of the source tree 209 srctree := .. 210 else 211 srctree := $(KBUILD_SRC) 212 endif 213endif 214objtree := . 215src := $(srctree) 216obj := $(objtree) 217 218VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 220export srctree objtree VPATH 221 222# Make sure CDPATH settings don't interfere 223unexport CDPATH 224 225######################################################################### 226 227HOSTARCH := $(shell uname -m | \ 228 sed -e s/i.86/x86/ \ 229 -e s/sun4u/sparc64/ \ 230 -e s/arm.*/arm/ \ 231 -e s/sa110/arm/ \ 232 -e s/ppc64/powerpc/ \ 233 -e s/ppc/powerpc/ \ 234 -e s/macppc/powerpc/\ 235 -e s/sh.*/sh/) 236 237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 238 sed -e 's/\(cygwin\).*/cygwin/') 239 240export HOSTARCH HOSTOS 241 242######################################################################### 243 244# set default to nothing for native builds 245ifeq ($(HOSTARCH),$(ARCH)) 246CROSS_COMPILE ?= 247endif 248 249KCONFIG_CONFIG ?= .config 250export KCONFIG_CONFIG 251 252# SHELL used by kbuild 253CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 254 else if [ -x /bin/bash ]; then echo /bin/bash; \ 255 else echo sh; fi ; fi) 256 257HOSTCC = cc 258HOSTCXX = c++ 259HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 260 $(if $(CONFIG_TOOLS_DEBUG),-g) 261HOSTCXXFLAGS = -O2 262 263ifeq ($(HOSTOS),cygwin) 264HOSTCFLAGS += -ansi 265endif 266 267# Mac OS X / Darwin's C preprocessor is Apple specific. It 268# generates numerous errors and warnings. We want to bypass it 269# and use GNU C's cpp. To do this we pass the -traditional-cpp 270# option to the compiler. Note that the -traditional-cpp flag 271# DOES NOT have the same semantics as GNU C's flag, all it does 272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 273# 274# Apple's linker is similar, thanks to the new 2 stage linking 275# multiple symbol definitions are treated as errors, hence the 276# -multiply_defined suppress option to turn off this error. 277# 278ifeq ($(HOSTOS),darwin) 279# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 280DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 281DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 282 283os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 285 286# Snow Leopards build environment has no longer restrictions as described above 287HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 288HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 290 291# since Lion (10.7) ASLR is on by default, but we use linker generated lists 292# in some host tools which is a problem then ... so disable ASLR for these 293# tools 294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 295endif 296 297# Decide whether to build built-in, modular, or both. 298# Normally, just do built-in. 299 300KBUILD_MODULES := 301KBUILD_BUILTIN := 1 302 303# If we have only "make modules", don't compile built-in objects. 304# When we're building modules with modversions, we need to consider 305# the built-in objects during the descend as well, in order to 306# make sure the checksums are up to date before we record them. 307 308ifeq ($(MAKECMDGOALS),modules) 309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 310endif 311 312# If we have "make <whatever> modules", compile modules 313# in addition to whatever we do anyway. 314# Just "make" or "make all" shall build modules as well 315 316# U-Boot does not need modules 317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 318# KBUILD_MODULES := 1 319#endif 320 321#ifeq ($(MAKECMDGOALS),) 322# KBUILD_MODULES := 1 323#endif 324 325export KBUILD_MODULES KBUILD_BUILTIN 326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 327 328# We need some generic definitions (do not try to remake the file). 329scripts/Kbuild.include: ; 330include scripts/Kbuild.include 331 332# Make variables (CC, etc...) 333 334AS = $(CROSS_COMPILE)as 335# Always use GNU ld 336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 337LD = $(CROSS_COMPILE)ld.bfd 338else 339LD = $(CROSS_COMPILE)ld 340endif 341CC = $(CROSS_COMPILE)gcc 342CPP = $(CC) -E 343AR = $(CROSS_COMPILE)ar 344NM = $(CROSS_COMPILE)nm 345LDR = $(CROSS_COMPILE)ldr 346STRIP = $(CROSS_COMPILE)strip 347OBJCOPY = $(CROSS_COMPILE)objcopy 348OBJDUMP = $(CROSS_COMPILE)objdump 349AWK = awk 350PERL = perl 351PYTHON = python 352DTC = dtc 353CHECK = sparse 354 355CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 357 358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 359 360KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 361 -Wno-format-security \ 362 -fno-builtin -ffreestanding 363KBUILD_AFLAGS := -D__ASSEMBLY__ 364 365# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 366UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 367UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 368 369export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 370export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 371export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 372export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 373export MAKE AWK PERL PYTHON 374export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 375 376export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 377export KBUILD_CFLAGS KBUILD_AFLAGS 378 379# When compiling out-of-tree modules, put MODVERDIR in the module 380# tree rather than in the kernel tree. The kernel tree might 381# even be read-only. 382export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 383 384# Files to ignore in find ... statements 385 386export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 387 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 388 -prune -o 389export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 390 --exclude CVS --exclude .pc --exclude .hg --exclude .git 391 392# =========================================================================== 393# Rules shared between *config targets and build targets 394 395# Basic helpers built in scripts/ 396PHONY += scripts_basic 397scripts_basic: 398 $(Q)$(MAKE) $(build)=scripts/basic 399 $(Q)rm -f .tmp_quiet_recordmcount 400 401# To avoid any implicit rule to kick in, define an empty command. 402scripts/basic/%: scripts_basic ; 403 404PHONY += outputmakefile 405# outputmakefile generates a Makefile in the output directory, if using a 406# separate output directory. This allows convenient use of make in the 407# output directory. 408outputmakefile: 409ifneq ($(KBUILD_SRC),) 410 $(Q)ln -fsn $(srctree) source 411 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 412 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 413endif 414 415# To make sure we do not include .config for any of the *config targets 416# catch them early, and hand them over to scripts/kconfig/Makefile 417# It is allowed to specify more targets when calling make, including 418# mixing *config targets and build targets. 419# For example 'make oldconfig all'. 420# Detect when mixed targets is specified, and make a second invocation 421# of make so .config is not included in this case either (for *config). 422 423version_h := include/generated/version_autogenerated.h 424timestamp_h := include/generated/timestamp_autogenerated.h 425 426no-dot-config-targets := clean clobber mrproper distclean \ 427 help %docs check% coccicheck \ 428 ubootversion backup tests 429 430config-targets := 0 431mixed-targets := 0 432dot-config := 1 433 434ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 435 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 436 dot-config := 0 437 endif 438endif 439 440ifeq ($(KBUILD_EXTMOD),) 441 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 442 config-targets := 1 443 ifneq ($(words $(MAKECMDGOALS)),1) 444 mixed-targets := 1 445 endif 446 endif 447endif 448 449ifeq ($(mixed-targets),1) 450# =========================================================================== 451# We're called with mixed targets (*config and build targets). 452# Handle them one by one. 453 454PHONY += $(MAKECMDGOALS) __build_one_by_one 455 456$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 457 @: 458 459__build_one_by_one: 460 $(Q)set -e; \ 461 for i in $(MAKECMDGOALS); do \ 462 $(MAKE) -f $(srctree)/Makefile $$i; \ 463 done 464 465else 466ifeq ($(config-targets),1) 467# =========================================================================== 468# *config targets only - make sure prerequisites are updated, and descend 469# in scripts/kconfig to make the *config target 470 471KBUILD_DEFCONFIG := sandbox_defconfig 472export KBUILD_DEFCONFIG KBUILD_KCONFIG 473 474config: scripts_basic outputmakefile FORCE 475 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 476 477%config: scripts_basic outputmakefile FORCE 478 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 479 480else 481# =========================================================================== 482# Build targets only - this includes vmlinux, arch specific targets, clean 483# targets and others. In general all targets except *config targets. 484 485ifeq ($(dot-config),1) 486# Read in config 487-include include/config/auto.conf 488 489# Read in dependencies to all Kconfig* files, make sure to run 490# oldconfig if changes are detected. 491-include include/config/auto.conf.cmd 492 493# To avoid any implicit rule to kick in, define an empty command 494$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 495 496# If .config is newer than include/config/auto.conf, someone tinkered 497# with it and forgot to run make oldconfig. 498# if auto.conf.cmd is missing then we are probably in a cleaned tree so 499# we execute the config step to be sure to catch updated Kconfig files 500include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 501 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 502 @# If the following part fails, include/config/auto.conf should be 503 @# deleted so "make silentoldconfig" will be re-run on the next build. 504 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 505 { rm -f include/config/auto.conf; false; } 506 @# include/config.h has been updated after "make silentoldconfig". 507 @# We need to touch include/config/auto.conf so it gets newer 508 @# than include/config.h. 509 @# Otherwise, 'make silentoldconfig' would be invoked twice. 510 $(Q)touch include/config/auto.conf 511 512-include include/autoconf.mk 513-include include/autoconf.mk.dep 514 515# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 516# is up-to-date. When we switch to a different board configuration, old CONFIG 517# macros are still remaining in include/config/auto.conf. Without the following 518# gimmick, wrong config.mk would be included leading nasty warnings/errors. 519ifneq ($(wildcard $(KCONFIG_CONFIG)),) 520ifneq ($(wildcard include/config/auto.conf),) 521autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 522 include/config/auto.conf) 523ifeq ($(autoconf_is_old),) 524include config.mk 525include arch/$(ARCH)/Makefile 526endif 527endif 528endif 529 530# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 531# that (or fail if absent). Otherwise, search for a linker script in a 532# standard location. 533 534ifndef LDSCRIPT 535 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 536 ifdef CONFIG_SYS_LDSCRIPT 537 # need to strip off double quotes 538 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 539 endif 540endif 541 542# If there is no specified link script, we look in a number of places for it 543ifndef LDSCRIPT 544 ifeq ($(wildcard $(LDSCRIPT)),) 545 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 546 endif 547 ifeq ($(wildcard $(LDSCRIPT)),) 548 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 549 endif 550 ifeq ($(wildcard $(LDSCRIPT)),) 551 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 552 endif 553endif 554 555else 556# Dummy target needed, because used as prerequisite 557include/config/auto.conf: ; 558endif # $(dot-config) 559 560# 561# Xtensa linker script cannot be preprocessed with -ansi because of 562# preprocessor operations on strings that don't make C identifiers. 563# 564ifeq ($(CONFIG_XTENSA),) 565LDPPFLAGS += -ansi 566endif 567 568ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 569KBUILD_CFLAGS += -Os 570else 571KBUILD_CFLAGS += -O2 572endif 573 574KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 575KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 576 577KBUILD_CFLAGS += -g 578# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 579# option to the assembler. 580KBUILD_AFLAGS += -g 581 582# Report stack usage if supported 583ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 584 KBUILD_CFLAGS += -fstack-usage 585endif 586 587KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 588 589# turn jbsr into jsr for m68k 590ifeq ($(ARCH),m68k) 591ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 592KBUILD_AFLAGS += -Wa,-gstabs,-S 593endif 594endif 595 596# Prohibit date/time macros, which would make the build non-deterministic 597KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 598 599include scripts/Makefile.extrawarn 600 601# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 602KBUILD_CPPFLAGS += $(KCPPFLAGS) 603KBUILD_AFLAGS += $(KAFLAGS) 604KBUILD_CFLAGS += $(KCFLAGS) 605 606# Use UBOOTINCLUDE when you must reference the include/ directory. 607# Needed to be compatible with the O= option 608UBOOTINCLUDE := \ 609 -Iinclude \ 610 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 611 $(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \ 612 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 613 -I$(srctree)/arch/$(ARCH)/include \ 614 -include $(srctree)/include/linux/kconfig.h 615 616NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 617CHECKFLAGS += $(NOSTDINC_FLAGS) 618 619# FIX ME 620cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 621 $(NOSTDINC_FLAGS) 622c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 623 624######################################################################### 625# U-Boot objects....order is important (i.e. start must be first) 626 627HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 628 629libs-y += lib/ 630libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 631libs-$(CONFIG_OF_EMBED) += dts/ 632libs-y += fs/ 633libs-y += net/ 634libs-y += disk/ 635libs-y += drivers/ 636libs-y += drivers/dma/ 637libs-y += drivers/gpio/ 638libs-y += drivers/i2c/ 639libs-y += drivers/mmc/ 640libs-y += drivers/mtd/ 641libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 642libs-y += drivers/mtd/onenand/ 643libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 644libs-y += drivers/mtd/spi/ 645libs-y += drivers/net/ 646libs-y += drivers/net/phy/ 647libs-y += drivers/pci/ 648libs-y += drivers/power/ \ 649 drivers/power/domain/ \ 650 drivers/power/fuel_gauge/ \ 651 drivers/power/mfd/ \ 652 drivers/power/pmic/ \ 653 drivers/power/battery/ \ 654 drivers/power/regulator/ 655libs-y += drivers/spi/ 656libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 657libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 658libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 659libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 660libs-y += drivers/serial/ 661libs-y += drivers/usb/dwc3/ 662libs-y += drivers/usb/common/ 663libs-y += drivers/usb/emul/ 664libs-y += drivers/usb/eth/ 665libs-y += drivers/usb/gadget/ 666libs-y += drivers/usb/gadget/udc/ 667libs-y += drivers/usb/host/ 668libs-y += drivers/usb/musb/ 669libs-y += drivers/usb/musb-new/ 670libs-y += drivers/usb/phy/ 671libs-y += drivers/usb/ulpi/ 672libs-y += cmd/ 673libs-y += common/ 674libs-$(CONFIG_API) += api/ 675libs-$(CONFIG_HAS_POST) += post/ 676libs-y += test/ 677libs-y += test/dm/ 678libs-$(CONFIG_UT_ENV) += test/env/ 679libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 680 681libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 682 683libs-y := $(sort $(libs-y)) 684 685u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 686 687u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 688 689libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 690 691u-boot-init := $(head-y) 692u-boot-main := $(libs-y) 693 694 695# Add GCC lib 696ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 697PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 698else 699PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 700endif 701PLATFORM_LIBS += $(PLATFORM_LIBGCC) 702export PLATFORM_LIBS 703export PLATFORM_LIBGCC 704 705# Special flags for CPP when processing the linker script. 706# Pass the version down so we can handle backwards compatibility 707# on the fly. 708LDPPFLAGS += \ 709 -include $(srctree)/include/u-boot/u-boot.lds.h \ 710 -DCPUDIR=$(CPUDIR) \ 711 $(shell $(LD) --version | \ 712 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 713 714######################################################################### 715######################################################################### 716 717ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 718BOARD_SIZE_CHECK = \ 719 @actual=`wc -c $@ | awk '{print $$1}'`; \ 720 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 721 if test $$actual -gt $$limit; then \ 722 echo "$@ exceeds file size limit:" >&2 ; \ 723 echo " limit: $$limit bytes" >&2 ; \ 724 echo " actual: $$actual bytes" >&2 ; \ 725 echo " excess: $$((actual - limit)) bytes" >&2; \ 726 exit 1; \ 727 fi 728else 729BOARD_SIZE_CHECK = 730endif 731 732# Statically apply RELA-style relocations (currently arm64 only) 733ifneq ($(CONFIG_STATIC_RELA),) 734# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 735DO_STATIC_RELA = \ 736 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 737 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 738 tools/relocate-rela $(2) $(3) $$start $$end 739else 740DO_STATIC_RELA = 741endif 742 743# Always append ALL so that arch config.mk's can add custom ones 744ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg \ 745 binary_size_check no_new_adhoc_configs_check 746 747ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 748ifeq ($(CONFIG_SPL_FSL_PBL),y) 749ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 750else 751ifneq ($(CONFIG_SECURE_BOOT), y) 752# For Secure Boot The Image needs to be signed and Header must also 753# be included. So The image has to be built explicitly 754ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 755endif 756endif 757ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 758ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 759ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 760ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 761ifeq ($(CONFIG_SPL_FRAMEWORK),y) 762ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 763endif 764ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 765ifneq ($(CONFIG_SPL_TARGET),) 766ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 767endif 768ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 769ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 770ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 771 772ifneq ($(BUILD_ROM),) 773ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 774endif 775 776# enable combined SPL/u-boot/dtb rules for tegra 777ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 778ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 779ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 780endif 781 782# Add optional build target if defined in board/cpu/soc headers 783ifneq ($(CONFIG_BUILD_TARGET),) 784ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 785endif 786 787LDFLAGS_u-boot += $(LDFLAGS_FINAL) 788ifneq ($(CONFIG_SYS_TEXT_BASE),) 789LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 790endif 791 792# Normally we fill empty space with 0xff 793quiet_cmd_objcopy = OBJCOPY $@ 794cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 795 $(OBJCOPYFLAGS_$(@F)) $< $@ 796 797# Provide a version which does not do this, for use by EFI 798quiet_cmd_zobjcopy = OBJCOPY $@ 799cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 800 801quiet_cmd_efipayload = OBJCOPY $@ 802cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 803 804quiet_cmd_mkimage = MKIMAGE $@ 805cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 806 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 807 808quiet_cmd_cat = CAT $@ 809cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 810 811append = cat $(filter-out $< $(PHONY), $^) >> $@ 812 813quiet_cmd_pad_cat = CAT $@ 814cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 815 816all: $(ALL-y) 817ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 818 @echo "===================== WARNING ======================" 819 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 820 @echo "(possibly in a subsequent patch in your series)" 821 @echo "before sending patches to the mailing list." 822 @echo "====================================================" 823endif 824 825PHONY += dtbs 826dtbs: dts/dt.dtb 827 @: 828dts/dt.dtb: checkdtc u-boot 829 $(Q)$(MAKE) $(build)=dts dtbs 830 831quiet_cmd_copy = COPY $@ 832 cmd_copy = cp $< $@ 833 834ifeq ($(CONFIG_OF_SEPARATE),y) 835u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 836 $(call if_changed,cat) 837 838u-boot.bin: u-boot-dtb.bin FORCE 839 $(call if_changed,copy) 840else 841u-boot.bin: u-boot-nodtb.bin FORCE 842 $(call if_changed,copy) 843endif 844 845%.imx: %.bin 846 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 847 848u-boot.dtb: dts/dt.dtb 849 $(call cmd,copy) 850 851OBJCOPYFLAGS_u-boot.hex := -O ihex 852 853OBJCOPYFLAGS_u-boot.srec := -O srec 854 855u-boot.hex u-boot.srec: u-boot FORCE 856 $(call if_changed,objcopy) 857 858OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 859 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 860 861binary_size_check: u-boot-nodtb.bin FORCE 862 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 863 map_size=$(shell cat u-boot.map | \ 864 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 865 | sed 's/0X//g' \ 866 | bc); \ 867 if [ "" != "$$map_size" ]; then \ 868 if test $$map_size -ne $$file_size; then \ 869 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 870 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 871 exit 1; \ 872 fi \ 873 fi 874 875u-boot-nodtb.bin: u-boot FORCE 876 $(call if_changed,objcopy) 877 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 878 $(BOARD_SIZE_CHECK) 879 880u-boot.ldr: u-boot 881 $(CREATE_LDR_ENV) 882 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 883 $(BOARD_SIZE_CHECK) 884 885OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 886 887OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 888 889u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 890 $(call if_changed,objcopy) 891 892# 893# U-Boot entry point, needed for booting of full-blown U-Boot 894# from the SPL U-Boot version. 895# 896ifndef CONFIG_SYS_UBOOT_START 897CONFIG_SYS_UBOOT_START := 0 898endif 899 900# Create a file containing the configuration options the image was built with 901quiet_cmd_cpp_cfg = CFG $@ 902cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 903 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 904 905ifdef CONFIG_SPL_LOAD_FIT 906MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 907 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 908 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 909 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 910else 911MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 912 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 913 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 914endif 915 916MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 917 918MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 919 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 920 921MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 922 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 923 924MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 925 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 926 927u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \ 928 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 929 $(call if_changed,mkimage) 930 931u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 932 $(call if_changed,mkimage) 933 934u-boot.sha1: u-boot.bin 935 tools/ubsha1 u-boot.bin 936 937u-boot.dis: u-boot 938 $(OBJDUMP) -d $< > $@ 939 940# If .u-boot.cfg.d is still present, then either: 941# a) The previous build used a Makefile that used if_changed rather than 942# if_changed_dep when building u-boot.cfg, and hence any later builds will 943# be unaware of the dependencies for u-boot.cfg. In this case, we must 944# delete u-boot.cfg to force it and .u-boot.cfg.cmd to be rebuilt the 945# correct way. 946# b) The previous build failed or was interrupted while building u-boot.cfg, 947# so deleting u-boot.cfg isn't going to cause any additional work. 948ifneq ($(wildcard $(obj)/.u-boot.cfg.d),) 949 unused := $(shell rm -f $(obj)/u-boot.cfg) 950endif 951u-boot.cfg: include/config.h FORCE 952 $(call if_changed_dep,cpp_cfg) 953 954# Check that this build does not use CONFIG options that we don't know about 955# unless they are in Kconfig. All the existing CONFIG options are whitelisted, 956# so new ones should not be added. 957no_new_adhoc_configs_check: u-boot.cfg FORCE 958 $(srctree)/scripts/check-config.sh $< \ 959 $(srctree)/scripts/config_whitelist.txt ${srctree} 1>&2 960 961ifdef CONFIG_TPL 962SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 963else 964SPL_PAYLOAD := u-boot.bin 965endif 966 967OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 968 --pad-to=$(CONFIG_SPL_PAD_TO) 969u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 970 $(call if_changed,pad_cat) 971 972MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 973 974lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 975 $(call if_changed,mkimage) 976 977OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 978 979lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 980 $(call if_changed,objcopy) 981 982OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 983 984lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 985 $(call if_changed,objcopy) 986 987lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 988 $(call if_changed,cat) 989 990CLEAN_FILES += lpc32xx-* 991 992OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 993 --pad-to=$(CONFIG_TPL_PAD_TO) 994tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 995 $(call if_changed,pad_cat) 996 997SPL: spl/u-boot-spl.bin FORCE 998 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 999 1000u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1001 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1002 1003MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1004 1005u-boot.ubl: u-boot-with-spl.bin FORCE 1006 $(call if_changed,mkimage) 1007 1008MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1009 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1010 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1011spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1012 $(call if_changed,mkimage) 1013 1014OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1015u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1016 $(call if_changed,pad_cat) 1017 1018u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1019 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1020u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1021 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1022 1023# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1024# Both images are created using mkimage (crc etc), so that the ROM 1025# bootloader can check its integrity. Padding needs to be done to the 1026# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1027# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1028# The resulting image containing both U-Boot images is called u-boot.spr 1029MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1030 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1031spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1032 $(call if_changed,mkimage) 1033 1034OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1035 --gap-fill=0xff 1036u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1037 $(call if_changed,pad_cat) 1038 1039ifneq ($(CONFIG_ARCH_SOCFPGA),) 1040quiet_cmd_socboot = SOCBOOT $@ 1041cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1042 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1043 u-boot.img > $@ || rm -f $@ 1044u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1045 $(call if_changed,socboot) 1046endif 1047 1048# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1049# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1050# the middle. 1051ifneq ($(CONFIG_X86_RESET_VECTOR),) 1052rom: u-boot.rom FORCE 1053 1054IFDTOOL=$(objtree)/tools/ifdtool 1055IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1056IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1057IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin 1058IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1059IFDTOOL_FLAGS += -C 1060 1061ifneq ($(CONFIG_HAVE_INTEL_ME),) 1062IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1063IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1064endif 1065 1066ifneq ($(CONFIG_HAVE_MRC),) 1067IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1068endif 1069 1070ifneq ($(CONFIG_HAVE_FSP),) 1071IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1072endif 1073 1074ifneq ($(CONFIG_HAVE_CMC),) 1075IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1076endif 1077 1078ifneq ($(CONFIG_HAVE_VGA_BIOS),) 1079IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE) 1080endif 1081 1082ifneq ($(CONFIG_HAVE_REFCODE),) 1083IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin 1084endif 1085 1086quiet_cmd_ifdtool = IFDTOOL $@ 1087cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1088ifneq ($(CONFIG_HAVE_INTEL_ME),) 1089cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1090endif 1091cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1092cmd_ifdtool += mv u-boot.tmp $@ 1093 1094refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1095 $(call if_changed,copy) 1096 1097quiet_cmd_ldr = LD $@ 1098cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1099 $(filter-out FORCE,$^) -o $@ 1100 1101u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \ 1102 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) 1103 $(call if_changed,ifdtool) 1104 1105OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1106u-boot-x86-16bit.bin: u-boot FORCE 1107 $(call if_changed,objcopy) 1108endif 1109 1110ifneq ($(CONFIG_SUNXI),) 1111OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1112 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1113u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 1114 $(call if_changed,pad_cat) 1115endif 1116 1117ifneq ($(CONFIG_TEGRA),) 1118OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1119u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1120 $(call if_changed,pad_cat) 1121 1122OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1123u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1124 $(call if_changed,pad_cat) 1125 1126u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1127 $(call if_changed,copy) 1128endif 1129 1130OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1131u-boot-app.efi: u-boot FORCE 1132 $(call if_changed,zobjcopy) 1133 1134u-boot.bin.o: u-boot.bin FORCE 1135 $(call if_changed,efipayload) 1136 1137u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1138 $(call if_changed_dep,cpp_lds) 1139 1140# Rule to link the EFI payload which contains a stub and a U-Boot binary 1141quiet_cmd_u-boot_payload ?= LD $@ 1142 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1143 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1144 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1145 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB)) 1146 1147u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1148 $(call if_changed,u-boot_payload) 1149 1150OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1151u-boot-payload.efi: u-boot-payload FORCE 1152 $(call if_changed,zobjcopy) 1153 1154u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1155 $(call if_changed,cat) 1156 1157#Add a target to create boot binary having SPL binary in PBI format 1158#concatenated with u-boot binary. It is need by PowerPC SoC having 1159#internal SRAM <= 512KB. 1160MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1161 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1162 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1163 1164spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1165 $(call if_changed,mkimage) 1166 1167ifeq ($(ARCH),arm) 1168UBOOT_BINLOAD := u-boot.img 1169else 1170UBOOT_BINLOAD := u-boot.bin 1171endif 1172 1173OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1174 --gap-fill=0xff 1175 1176u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1177 $(call if_changed,pad_cat) 1178 1179# PPC4xx needs the SPL at the end of the image, since the reset vector 1180# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1181# and need to introduce a new build target with the full blown U-Boot 1182# at the start padded up to the start of the SPL image. And then concat 1183# the SPL image to the end. 1184 1185OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1186 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1187u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1188 $(call if_changed,pad_cat) 1189 1190# Create a new ELF from a raw binary file. This is useful for arm64 1191# where static relocation needs to be performed on the raw binary, 1192# but certain simulators only accept an ELF file (but don't do the 1193# relocation). 1194# FIXME refactor dts/Makefile to share target/arch detection 1195u-boot.elf: u-boot.bin 1196 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1197 $< u-boot-elf.o 1198 @$(LD) u-boot-elf.o -o $@ \ 1199 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1200 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1201 1202# Rule to link u-boot 1203# May be overridden by arch/$(ARCH)/config.mk 1204quiet_cmd_u-boot__ ?= LD $@ 1205 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1206 -T u-boot.lds $(u-boot-init) \ 1207 --start-group $(u-boot-main) --end-group \ 1208 $(PLATFORM_LIBS) -Map u-boot.map 1209 1210quiet_cmd_smap = GEN common/system_map.o 1211cmd_smap = \ 1212 smap=`$(call SYSTEM_MAP,u-boot) | \ 1213 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1214 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1215 -c $(srctree)/common/system_map.c -o common/system_map.o 1216 1217u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1218 $(call if_changed,u-boot__) 1219ifeq ($(CONFIG_KALLSYMS),y) 1220 $(call cmd,smap) 1221 $(call cmd,u-boot__) common/system_map.o 1222endif 1223 1224quiet_cmd_sym ?= SYM $@ 1225 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1226u-boot.sym: u-boot FORCE 1227 $(call if_changed,sym) 1228 1229# The actual objects are generated when descending, 1230# make sure no implicit rule kicks in 1231$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1232 1233# Handle descending into subdirectories listed in $(vmlinux-dirs) 1234# Preset locale variables to speed up the build process. Limit locale 1235# tweaks to this spot to avoid wrong language settings when running 1236# make menuconfig etc. 1237# Error messages still appears in the original language 1238 1239PHONY += $(u-boot-dirs) 1240$(u-boot-dirs): prepare scripts 1241 $(Q)$(MAKE) $(build)=$@ 1242 1243tools: prepare 1244# The "tools" are needed early 1245$(filter-out tools, $(u-boot-dirs)): tools 1246# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1247# is "yes"), so compile examples after U-Boot is compiled. 1248examples: $(filter-out examples, $(u-boot-dirs)) 1249 1250define filechk_uboot.release 1251 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1252endef 1253 1254# Store (new) UBOOTRELEASE string in include/config/uboot.release 1255include/config/uboot.release: include/config/auto.conf FORCE 1256 $(call filechk,uboot.release) 1257 1258 1259# Things we need to do before we recursively start building the kernel 1260# or the modules are listed in "prepare". 1261# A multi level approach is used. prepareN is processed before prepareN-1. 1262# archprepare is used in arch Makefiles and when processed asm symlink, 1263# version.h and scripts_basic is processed / created. 1264 1265# Listed in dependency order 1266PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1267 1268# prepare3 is used to check if we are building in a separate output directory, 1269# and if so do: 1270# 1) Check that make has not been executed in the kernel src $(srctree) 1271prepare3: include/config/uboot.release 1272ifneq ($(KBUILD_SRC),) 1273 @$(kecho) ' Using $(srctree) as source for U-Boot' 1274 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1275 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1276 echo >&2 " in the '$(srctree)' directory.";\ 1277 /bin/false; \ 1278 fi; 1279endif 1280 1281# prepare2 creates a makefile if using a separate output directory 1282prepare2: prepare3 outputmakefile 1283 1284prepare1: prepare2 $(version_h) $(timestamp_h) \ 1285 include/config/auto.conf 1286ifeq ($(wildcard $(LDSCRIPT)),) 1287 @echo >&2 " Could not find linker script." 1288 @/bin/false 1289endif 1290 1291archprepare: prepare1 scripts_basic 1292 1293prepare0: archprepare FORCE 1294 $(Q)$(MAKE) $(build)=. 1295 1296# All the preparing.. 1297prepare: prepare0 1298 1299# Generate some files 1300# --------------------------------------------------------------------------- 1301 1302define filechk_version.h 1303 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1304 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1305 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1306 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1307endef 1308 1309# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1310# The BSD date on the other hand behaves different and would produce errors 1311# with the misused '-d' switch. Respect that and search a working date with 1312# well known pre- and suffixes for the GNU variant of date. 1313define filechk_timestamp.h 1314 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1315 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1316 DATE=""; \ 1317 for date in gdate date.gnu date; do \ 1318 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1319 done; \ 1320 if test -n "$${DATE}"; then \ 1321 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1322 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1323 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1324 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1325 else \ 1326 return 42; \ 1327 fi; \ 1328 else \ 1329 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1330 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1331 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1332 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1333 fi) 1334endef 1335 1336$(version_h): include/config/uboot.release FORCE 1337 $(call filechk,version.h) 1338 1339$(timestamp_h): $(srctree)/Makefile FORCE 1340 $(call filechk,timestamp.h) 1341 1342# --------------------------------------------------------------------------- 1343quiet_cmd_cpp_lds = LDS $@ 1344cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1345 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1346 1347u-boot.lds: $(LDSCRIPT) prepare FORCE 1348 $(call if_changed_dep,cpp_lds) 1349 1350spl/u-boot-spl.bin: spl/u-boot-spl 1351 @: 1352spl/u-boot-spl: tools prepare \ 1353 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1354 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1355 1356spl/sunxi-spl.bin: spl/u-boot-spl 1357 @: 1358 1359spl/u-boot-spl.sfp: spl/u-boot-spl 1360 @: 1361 1362spl/boot.bin: spl/u-boot-spl 1363 @: 1364 1365tpl/u-boot-tpl.bin: tools prepare 1366 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1367 1368TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1369 1370FIND := find 1371FINDFLAGS := -L 1372 1373tags ctags: 1374 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1375 -name '*.[chS]' -print` 1376 ln -s ctags tags 1377 1378etags: 1379 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1380 -name '*.[chS]' -print` 1381cscope: 1382 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1383 cscope.files 1384 cscope -b -q -k 1385 1386SYSTEM_MAP = \ 1387 $(NM) $1 | \ 1388 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1389 LC_ALL=C sort 1390System.map: u-boot 1391 @$(call SYSTEM_MAP,$<) > $@ 1392 1393checkdtc: 1394 @if test $(call dtc-version) -lt 0104; then \ 1395 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1396 false; \ 1397 fi 1398 1399######################################################################### 1400 1401# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1402# R_AARCH64_RELATIVE (64-bit). 1403checkarmreloc: u-boot 1404 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1405 grep R_A | sort -u`"; \ 1406 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1407 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1408 echo "$< contains unexpected relocations: $$RELOC"; \ 1409 false; \ 1410 fi 1411 1412env: scripts_basic 1413 $(Q)$(MAKE) $(build)=tools/$@ 1414 1415tools-only: scripts_basic $(version_h) $(timestamp_h) 1416 $(Q)$(MAKE) $(build)=tools 1417 1418tools-all: export HOST_TOOLS_ALL=y 1419tools-all: env tools ; 1420 1421cross_tools: export CROSS_BUILD_TOOLS=y 1422cross_tools: tools ; 1423 1424.PHONY : CHANGELOG 1425CHANGELOG: 1426 git log --no-merges U-Boot-1_1_5.. | \ 1427 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1428 1429######################################################################### 1430 1431### 1432# Cleaning is done on three levels. 1433# make clean Delete most generated files 1434# Leave enough to build external modules 1435# make mrproper Delete the current configuration, and all generated files 1436# make distclean Remove editor backup files, patch leftover files and the like 1437 1438# Directories & files removed with 'make clean' 1439CLEAN_DIRS += $(MODVERDIR) \ 1440 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1441 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1442 1443CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \ 1444 boot* u-boot* MLO* SPL System.map 1445 1446# Directories & files removed with 'make mrproper' 1447MRPROPER_DIRS += include/config include/generated spl tpl \ 1448 .tmp_objdiff 1449MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1450 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1451 1452# clean - Delete most, but leave enough to build external modules 1453# 1454clean: rm-dirs := $(CLEAN_DIRS) 1455clean: rm-files := $(CLEAN_FILES) 1456 1457clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1458 1459clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1460 1461PHONY += $(clean-dirs) clean archclean 1462$(clean-dirs): 1463 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1464 1465# TODO: Do not use *.cfgtmp 1466clean: $(clean-dirs) 1467 $(call cmd,rmdirs) 1468 $(call cmd,rmfiles) 1469 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1470 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1471 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1472 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1473 -o -name '*.symtypes' -o -name 'modules.order' \ 1474 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1475 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1476 -o -name '*.gcno' \) -type f -print | xargs rm -f 1477 1478# mrproper - Delete all generated files, including .config 1479# 1480mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1481mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1482mrproper-dirs := $(addprefix _mrproper_,scripts) 1483 1484PHONY += $(mrproper-dirs) mrproper archmrproper 1485$(mrproper-dirs): 1486 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1487 1488mrproper: clean $(mrproper-dirs) 1489 $(call cmd,rmdirs) 1490 $(call cmd,rmfiles) 1491 @rm -f arch/*/include/asm/arch 1492 1493# distclean 1494# 1495PHONY += distclean 1496 1497distclean: mrproper 1498 @find $(srctree) $(RCS_FIND_IGNORE) \ 1499 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1500 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1501 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1502 -o -name '*.pyc' \) \ 1503 -type f -print | xargs rm -f 1504 @rm -f boards.cfg 1505 1506backup: 1507 F=`basename $(srctree)` ; cd .. ; \ 1508 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1509 1510help: 1511 @echo 'Cleaning targets:' 1512 @echo ' clean - Remove most generated files but keep the config' 1513 @echo ' mrproper - Remove all generated files + config + various backup files' 1514 @echo ' distclean - mrproper + remove editor backup and patch files' 1515 @echo '' 1516 @echo 'Configuration targets:' 1517 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1518 @echo '' 1519 @echo 'Other generic targets:' 1520 @echo ' all - Build all necessary images depending on configuration' 1521 @echo ' tests - Build U-Boot for sandbox and run tests' 1522 @echo '* u-boot - Build the bare u-boot' 1523 @echo ' dir/ - Build all files in dir and below' 1524 @echo ' dir/file.[oisS] - Build specified target only' 1525 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1526 @echo ' (requires a recent binutils and recent build (System.map))' 1527 @echo ' tags/ctags - Generate ctags file for editors' 1528 @echo ' etags - Generate etags file for editors' 1529 @echo ' cscope - Generate cscope index' 1530 @echo ' ubootrelease - Output the release version string (use with make -s)' 1531 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1532 @echo '' 1533 @echo 'Static analysers' 1534 @echo ' checkstack - Generate a list of stack hogs' 1535 @echo '' 1536 @echo 'Documentation targets:' 1537 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1538 @echo '' 1539 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1540 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1541 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1542 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1543 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1544 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1545 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1546 @echo ' 1: warnings which may be relevant and do not occur too often' 1547 @echo ' 2: warnings which occur quite often but may still be relevant' 1548 @echo ' 3: more obscure warnings, can most likely be ignored' 1549 @echo ' Multiple levels can be combined with W=12 or W=123' 1550 @echo '' 1551 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1552 @echo 'For further info see the ./README file' 1553 1554tests: 1555 $(srctree)/test/run 1556 1557# Documentation targets 1558# --------------------------------------------------------------------------- 1559%docs: scripts_basic FORCE 1560 $(Q)$(MAKE) $(build)=scripts build_docproc 1561 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1562 1563# Dummies... 1564PHONY += prepare scripts 1565prepare: ; 1566scripts: ; 1567 1568endif #ifeq ($(config-targets),1) 1569endif #ifeq ($(mixed-targets),1) 1570 1571PHONY += checkstack ubootrelease ubootversion 1572 1573checkstack: 1574 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1575 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1576 1577ubootrelease: 1578 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1579 1580ubootversion: 1581 @echo $(UBOOTVERSION) 1582 1583# Single targets 1584# --------------------------------------------------------------------------- 1585# Single targets are compatible with: 1586# - build with mixed source and output 1587# - build with separate output dir 'make O=...' 1588# - external modules 1589# 1590# target-dir => where to store outputfile 1591# build-dir => directory in kernel source tree to use 1592 1593ifeq ($(KBUILD_EXTMOD),) 1594 build-dir = $(patsubst %/,%,$(dir $@)) 1595 target-dir = $(dir $@) 1596else 1597 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1598 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1599 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1600endif 1601 1602%.s: %.c prepare scripts FORCE 1603 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1604%.i: %.c prepare scripts FORCE 1605 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1606%.o: %.c prepare scripts FORCE 1607 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1608%.lst: %.c prepare scripts FORCE 1609 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1610%.s: %.S prepare scripts FORCE 1611 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1612%.o: %.S prepare scripts FORCE 1613 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1614%.symtypes: %.c prepare scripts FORCE 1615 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1616 1617# Modules 1618/: prepare scripts FORCE 1619 $(cmd_crmodverdir) 1620 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1621 $(build)=$(build-dir) 1622%/: prepare scripts FORCE 1623 $(cmd_crmodverdir) 1624 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1625 $(build)=$(build-dir) 1626%.ko: prepare scripts FORCE 1627 $(cmd_crmodverdir) 1628 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1629 $(build)=$(build-dir) $(@:.ko=.o) 1630 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1631 1632# FIXME Should go into a make.lib or something 1633# =========================================================================== 1634 1635quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1636 cmd_rmdirs = rm -rf $(rm-dirs) 1637 1638quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1639 cmd_rmfiles = rm -f $(rm-files) 1640 1641# read all saved command lines 1642 1643targets := $(wildcard $(sort $(targets))) 1644cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1645 1646ifneq ($(cmd_files),) 1647 $(cmd_files): ; # Do not try to update included dependency files 1648 include $(cmd_files) 1649endif 1650 1651endif # skip-makefile 1652 1653PHONY += FORCE 1654FORCE: 1655 1656# Declare the contents of the .PHONY variable as phony. We keep that 1657# information in a variable so we can use it in if_changed and friends. 1658.PHONY: $(PHONY) 1659