1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2017 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 CHECK CHECKFLAGS DTC DTC_FLAGS 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. 484 485# Additional helpers built in scripts/ 486# Carefully list dependencies so we do not try to build scripts twice 487# in parallel 488PHONY += scripts 489scripts: scripts_basic include/config/auto.conf 490 $(Q)$(MAKE) $(build)=$(@) 491 492ifeq ($(dot-config),1) 493# Read in config 494-include include/config/auto.conf 495 496# Read in dependencies to all Kconfig* files, make sure to run 497# oldconfig if changes are detected. 498-include include/config/auto.conf.cmd 499 500# To avoid any implicit rule to kick in, define an empty command 501$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 502 503# If .config is newer than include/config/auto.conf, someone tinkered 504# with it and forgot to run make oldconfig. 505# if auto.conf.cmd is missing then we are probably in a cleaned tree so 506# we execute the config step to be sure to catch updated Kconfig files 507include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 508 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 509 @# If the following part fails, include/config/auto.conf should be 510 @# deleted so "make silentoldconfig" will be re-run on the next build. 511 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 512 { rm -f include/config/auto.conf; false; } 513 @# include/config.h has been updated after "make silentoldconfig". 514 @# We need to touch include/config/auto.conf so it gets newer 515 @# than include/config.h. 516 @# Otherwise, 'make silentoldconfig' would be invoked twice. 517 $(Q)touch include/config/auto.conf 518 519u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE 520 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 521 522-include include/autoconf.mk 523-include include/autoconf.mk.dep 524 525# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 526# is up-to-date. When we switch to a different board configuration, old CONFIG 527# macros are still remaining in include/config/auto.conf. Without the following 528# gimmick, wrong config.mk would be included leading nasty warnings/errors. 529ifneq ($(wildcard $(KCONFIG_CONFIG)),) 530ifneq ($(wildcard include/config/auto.conf),) 531autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 532 include/config/auto.conf) 533ifeq ($(autoconf_is_old),) 534include config.mk 535include arch/$(ARCH)/Makefile 536endif 537endif 538endif 539 540# These are set by the arch-specific config.mk. Make sure they are exported 541# so they can be used when building an EFI application. 542export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 543export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 544export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 545export CFLAGS_EFI # Compiler flags to add when building EFI app 546export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 547export EFI_TARGET # binutils target if EFI is natively supported 548 549# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 550# that (or fail if absent). Otherwise, search for a linker script in a 551# standard location. 552 553ifndef LDSCRIPT 554 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 555 ifdef CONFIG_SYS_LDSCRIPT 556 # need to strip off double quotes 557 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 558 endif 559endif 560 561# If there is no specified link script, we look in a number of places for it 562ifndef LDSCRIPT 563 ifeq ($(wildcard $(LDSCRIPT)),) 564 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 565 endif 566 ifeq ($(wildcard $(LDSCRIPT)),) 567 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 568 endif 569 ifeq ($(wildcard $(LDSCRIPT)),) 570 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 571 endif 572endif 573 574else 575# Dummy target needed, because used as prerequisite 576include/config/auto.conf: ; 577endif # $(dot-config) 578 579# 580# Xtensa linker script cannot be preprocessed with -ansi because of 581# preprocessor operations on strings that don't make C identifiers. 582# 583ifeq ($(CONFIG_XTENSA),) 584LDPPFLAGS += -ansi 585endif 586 587ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 588KBUILD_CFLAGS += -Os 589else 590KBUILD_CFLAGS += -O2 591endif 592 593KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 594KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 595 596KBUILD_CFLAGS += -g 597# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 598# option to the assembler. 599KBUILD_AFLAGS += -g 600 601# Report stack usage if supported 602ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 603 KBUILD_CFLAGS += -fstack-usage 604endif 605 606KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 607 608# turn jbsr into jsr for m68k 609ifeq ($(ARCH),m68k) 610ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 611KBUILD_AFLAGS += -Wa,-gstabs,-S 612endif 613endif 614 615# Prohibit date/time macros, which would make the build non-deterministic 616KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 617 618include scripts/Makefile.extrawarn 619 620# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 621KBUILD_CPPFLAGS += $(KCPPFLAGS) 622KBUILD_AFLAGS += $(KAFLAGS) 623KBUILD_CFLAGS += $(KCFLAGS) 624 625# Use UBOOTINCLUDE when you must reference the include/ directory. 626# Needed to be compatible with the O= option 627UBOOTINCLUDE := \ 628 -Iinclude \ 629 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 630 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 631 $(if $(CONFIG_HAS_THUMB2),, \ 632 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 633 -I$(srctree)/arch/$(ARCH)/include \ 634 -include $(srctree)/include/linux/kconfig.h 635 636NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 637CHECKFLAGS += $(NOSTDINC_FLAGS) 638 639# FIX ME 640cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 641 $(NOSTDINC_FLAGS) 642c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 643 644######################################################################### 645# U-Boot objects....order is important (i.e. start must be first) 646 647HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 648 649libs-y += lib/ 650libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 651libs-$(CONFIG_OF_EMBED) += dts/ 652libs-y += fs/ 653libs-y += net/ 654libs-y += disk/ 655libs-y += drivers/ 656libs-y += drivers/dma/ 657libs-y += drivers/gpio/ 658libs-y += drivers/i2c/ 659libs-y += drivers/mtd/ 660libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 661libs-y += drivers/mtd/onenand/ 662libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 663libs-y += drivers/mtd/spi/ 664libs-y += drivers/net/ 665libs-y += drivers/net/phy/ 666libs-y += drivers/pci/ 667libs-y += drivers/power/ \ 668 drivers/power/domain/ \ 669 drivers/power/fuel_gauge/ \ 670 drivers/power/mfd/ \ 671 drivers/power/pmic/ \ 672 drivers/power/battery/ \ 673 drivers/power/regulator/ 674libs-y += drivers/spi/ 675libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 676libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 677libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 678libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 679libs-y += drivers/serial/ 680libs-y += drivers/usb/dwc3/ 681libs-y += drivers/usb/common/ 682libs-y += drivers/usb/emul/ 683libs-y += drivers/usb/eth/ 684libs-y += drivers/usb/gadget/ 685libs-y += drivers/usb/gadget/udc/ 686libs-y += drivers/usb/host/ 687libs-y += drivers/usb/musb/ 688libs-y += drivers/usb/musb-new/ 689libs-y += drivers/usb/phy/ 690libs-y += drivers/usb/ulpi/ 691libs-y += cmd/ 692libs-y += common/ 693libs-y += env/ 694libs-$(CONFIG_API) += api/ 695libs-$(CONFIG_HAS_POST) += post/ 696libs-y += test/ 697libs-y += test/dm/ 698libs-$(CONFIG_UT_ENV) += test/env/ 699libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 700 701libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 702 703libs-y := $(sort $(libs-y)) 704 705u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 706 707u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 708 709libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 710 711u-boot-init := $(head-y) 712u-boot-main := $(libs-y) 713 714 715# Add GCC lib 716ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 717PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 718else 719PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 720endif 721PLATFORM_LIBS += $(PLATFORM_LIBGCC) 722export PLATFORM_LIBS 723export PLATFORM_LIBGCC 724 725# Special flags for CPP when processing the linker script. 726# Pass the version down so we can handle backwards compatibility 727# on the fly. 728LDPPFLAGS += \ 729 -include $(srctree)/include/u-boot/u-boot.lds.h \ 730 -DCPUDIR=$(CPUDIR) \ 731 $(shell $(LD) --version | \ 732 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 733 734######################################################################### 735######################################################################### 736 737ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 738BOARD_SIZE_CHECK = \ 739 @actual=`wc -c $@ | awk '{print $$1}'`; \ 740 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 741 if test $$actual -gt $$limit; then \ 742 echo "$@ exceeds file size limit:" >&2 ; \ 743 echo " limit: $$limit bytes" >&2 ; \ 744 echo " actual: $$actual bytes" >&2 ; \ 745 echo " excess: $$((actual - limit)) bytes" >&2; \ 746 exit 1; \ 747 fi 748else 749BOARD_SIZE_CHECK = 750endif 751 752# Statically apply RELA-style relocations (currently arm64 only) 753# This is useful for arm64 where static relocation needs to be performed on 754# the raw binary, but certain simulators only accept an ELF file (but don't 755# do the relocation). 756ifneq ($(CONFIG_STATIC_RELA),) 757# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 758DO_STATIC_RELA = \ 759 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 760 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 761 tools/relocate-rela $(2) $(3) $$start $$end 762else 763DO_STATIC_RELA = 764endif 765 766# Always append ALL so that arch config.mk's can add custom ones 767ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 768 769ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 770ifeq ($(CONFIG_SPL_FSL_PBL),y) 771ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 772else 773ifneq ($(CONFIG_SECURE_BOOT), y) 774# For Secure Boot The Image needs to be signed and Header must also 775# be included. So The image has to be built explicitly 776ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 777endif 778endif 779ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 780ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 781ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 782else 783ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 784endif 785ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 786ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 787ifeq ($(CONFIG_SPL_FRAMEWORK),y) 788ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 789endif 790ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 791ifneq ($(CONFIG_SPL_TARGET),) 792ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 793endif 794ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 795ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 796ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 797 798ifneq ($(BUILD_ROM),) 799ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 800endif 801 802# enable combined SPL/u-boot/dtb rules for tegra 803ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 804ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 805ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 806endif 807 808# Add optional build target if defined in board/cpu/soc headers 809ifneq ($(CONFIG_BUILD_TARGET),) 810ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 811endif 812 813LDFLAGS_u-boot += $(LDFLAGS_FINAL) 814 815# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 816LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 817 818ifneq ($(CONFIG_SYS_TEXT_BASE),) 819LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 820endif 821 822# Normally we fill empty space with 0xff 823quiet_cmd_objcopy = OBJCOPY $@ 824cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 825 $(OBJCOPYFLAGS_$(@F)) $< $@ 826 827# Provide a version which does not do this, for use by EFI 828quiet_cmd_zobjcopy = OBJCOPY $@ 829cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 830 831quiet_cmd_efipayload = OBJCOPY $@ 832cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 833 834MKIMAGEOUTPUT ?= /dev/null 835 836quiet_cmd_mkimage = MKIMAGE $@ 837cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 838 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 839 840quiet_cmd_mkfitimage = MKIMAGE $@ 841cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \ 842 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 843 844quiet_cmd_cat = CAT $@ 845cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 846 847append = cat $(filter-out $< $(PHONY), $^) >> $@ 848 849quiet_cmd_pad_cat = CAT $@ 850cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 851 852cfg: u-boot.cfg 853 854quiet_cmd_cfgcheck = CFGCHK $2 855cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 856 $(srctree)/scripts/config_whitelist.txt $(srctree) 857 858all: $(ALL-y) cfg 859ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 860 @echo "===================== WARNING ======================" 861 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 862 @echo "(possibly in a subsequent patch in your series)" 863 @echo "before sending patches to the mailing list." 864 @echo "====================================================" 865endif 866 @# Check that this build does not use CONFIG options that we do not 867 @# know about unless they are in Kconfig. All the existing CONFIG 868 @# options are whitelisted, so new ones should not be added. 869 $(call cmd,cfgcheck,u-boot.cfg) 870 871PHONY += dtbs 872dtbs: dts/dt.dtb 873 @: 874dts/dt.dtb: checkdtc u-boot 875 $(Q)$(MAKE) $(build)=dts dtbs 876 877quiet_cmd_copy = COPY $@ 878 cmd_copy = cp $< $@ 879 880ifeq ($(CONFIG_FIT_EMBED),y) 881 882fit-dtb.blob: dts/dt.dtb FORCE 883 $(call if_changed,mkimage) 884 885MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 886 -a 0 -e 0 -E \ 887 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 888 889u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 890 $(call if_changed,cat) 891 892u-boot.bin: u-boot-fit-dtb.bin FORCE 893 $(call if_changed,copy) 894else ifeq ($(CONFIG_OF_SEPARATE),y) 895u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 896 $(call if_changed,cat) 897 898u-boot.bin: u-boot-dtb.bin FORCE 899 $(call if_changed,copy) 900else 901u-boot.bin: u-boot-nodtb.bin FORCE 902 $(call if_changed,copy) 903endif 904 905%.imx: %.bin 906 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 907 908%.vyb: %.imx 909 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 910 911quiet_cmd_copy = COPY $@ 912 cmd_copy = cp $< $@ 913 914u-boot.dtb: dts/dt.dtb 915 $(call cmd,copy) 916 917OBJCOPYFLAGS_u-boot.hex := -O ihex 918 919OBJCOPYFLAGS_u-boot.srec := -O srec 920 921u-boot.hex u-boot.srec: u-boot FORCE 922 $(call if_changed,objcopy) 923 924OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 925 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 926 927binary_size_check: u-boot-nodtb.bin FORCE 928 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 929 map_size=$(shell cat u-boot.map | \ 930 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 931 | sed 's/0X//g' \ 932 | bc); \ 933 if [ "" != "$$map_size" ]; then \ 934 if test $$map_size -ne $$file_size; then \ 935 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 936 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 937 exit 1; \ 938 fi \ 939 fi 940 941u-boot-nodtb.bin: u-boot FORCE 942 $(call if_changed,objcopy) 943 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 944 $(BOARD_SIZE_CHECK) 945 946u-boot.ldr: u-boot 947 $(CREATE_LDR_ENV) 948 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 949 $(BOARD_SIZE_CHECK) 950 951# binman 952# --------------------------------------------------------------------------- 953quiet_cmd_binman = BINMAN $@ 954cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 955 -I . -I $(srctree)/board/$(BOARDDIR) $< 956 957OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 958 959OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 960 961u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 962 $(call if_changed,objcopy) 963 964# 965# U-Boot entry point, needed for booting of full-blown U-Boot 966# from the SPL U-Boot version. 967# 968ifndef CONFIG_SYS_UBOOT_START 969CONFIG_SYS_UBOOT_START := 0 970endif 971 972# Create a file containing the configuration options the image was built with 973quiet_cmd_cpp_cfg = CFG $@ 974cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 975 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 976 977# Boards with more complex image requirments can provide an .its source file 978# or a generator script 979ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 980U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 981else 982ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 983U_BOOT_ITS := u-boot.its 984$(U_BOOT_ITS): FORCE 985 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 986 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 987endif 988endif 989 990ifdef CONFIG_SPL_LOAD_FIT 991MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 992 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 993 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 994 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 995else 996MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 997 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 998 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 999MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1000 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1001 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1002u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1003CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1004endif 1005 1006MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1007 1008MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1009 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1010 1011MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1012 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1013 $(if $(KEYDIR),-k $(KEYDIR)) 1014 1015MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1016 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1017 1018u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1019 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1020 $(call if_changed,mkimage) 1021 1022u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1023 $(call if_changed,mkfitimage) 1024 1025u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1026 $(call if_changed,mkimage) 1027 1028u-boot.sha1: u-boot.bin 1029 tools/ubsha1 u-boot.bin 1030 1031u-boot.dis: u-boot 1032 $(OBJDUMP) -d $< > $@ 1033 1034ifdef CONFIG_TPL 1035SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 1036else 1037SPL_PAYLOAD := u-boot.bin 1038endif 1039 1040OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1041 --pad-to=$(CONFIG_SPL_PAD_TO) 1042u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1043 $(call if_changed,pad_cat) 1044 1045MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1046 1047lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1048 $(call if_changed,mkimage) 1049 1050OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1051 1052lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1053 $(call if_changed,objcopy) 1054 1055OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1056 1057lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1058 $(call if_changed,objcopy) 1059 1060lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1061 $(call if_changed,cat) 1062 1063CLEAN_FILES += lpc32xx-* 1064 1065OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1066 --pad-to=$(CONFIG_TPL_PAD_TO) 1067tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1068 $(call if_changed,pad_cat) 1069 1070SPL: spl/u-boot-spl.bin FORCE 1071 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1072 1073u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1074 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1075 1076MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1077 1078u-boot.ubl: u-boot-with-spl.bin FORCE 1079 $(call if_changed,mkimage) 1080 1081MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1082 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1083 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1084spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1085 $(call if_changed,mkimage) 1086 1087OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1088u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1089 $(call if_changed,pad_cat) 1090 1091u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1092 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1093u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1094 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1095 1096# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1097# Both images are created using mkimage (crc etc), so that the ROM 1098# bootloader can check its integrity. Padding needs to be done to the 1099# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1100# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1101# The resulting image containing both U-Boot images is called u-boot.spr 1102MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1103 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1104spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1105 $(call if_changed,mkimage) 1106 1107OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1108 --gap-fill=0xff 1109u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1110 $(call if_changed,pad_cat) 1111 1112ifneq ($(CONFIG_ARCH_SOCFPGA),) 1113quiet_cmd_socboot = SOCBOOT $@ 1114cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1115 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1116 u-boot.img > $@ || rm -f $@ 1117u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1118 $(call if_changed,socboot) 1119endif 1120 1121# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1122# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1123# the middle. This is handled by binman based on an image description in the 1124# board's device tree. 1125ifneq ($(CONFIG_X86_RESET_VECTOR),) 1126rom: u-boot.rom FORCE 1127 1128refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1129 $(call if_changed,copy) 1130 1131quiet_cmd_ldr = LD $@ 1132cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1133 $(filter-out FORCE,$^) -o $@ 1134 1135u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1136 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1137 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE 1138 $(call if_changed,binman) 1139 1140OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1141u-boot-x86-16bit.bin: u-boot FORCE 1142 $(call if_changed,objcopy) 1143endif 1144 1145ifneq ($(CONFIG_ARCH_SUNXI),) 1146u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \ 1147 checkbinman FORCE 1148 $(call if_changed,binman) 1149endif 1150 1151ifneq ($(CONFIG_TEGRA),) 1152OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1153u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1154 $(call if_changed,pad_cat) 1155 1156OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1157u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1158 $(call if_changed,pad_cat) 1159 1160u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1161 $(call if_changed,copy) 1162endif 1163 1164OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1165u-boot-app.efi: u-boot FORCE 1166 $(call if_changed,zobjcopy) 1167 1168u-boot.bin.o: u-boot.bin FORCE 1169 $(call if_changed,efipayload) 1170 1171u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1172 $(call if_changed_dep,cpp_lds) 1173 1174# Rule to link the EFI payload which contains a stub and a U-Boot binary 1175quiet_cmd_u-boot_payload ?= LD $@ 1176 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1177 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1178 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1179 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1180 1181u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1182 $(call if_changed,u-boot_payload) 1183 1184OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1185u-boot-payload.efi: u-boot-payload FORCE 1186 $(call if_changed,zobjcopy) 1187 1188u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1189 $(call if_changed,cat) 1190 1191#Add a target to create boot binary having SPL binary in PBI format 1192#concatenated with u-boot binary. It is need by PowerPC SoC having 1193#internal SRAM <= 512KB. 1194MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1195 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1196 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1197 1198spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1199 $(call if_changed,mkimage) 1200 1201ifeq ($(ARCH),arm) 1202UBOOT_BINLOAD := u-boot.img 1203else 1204UBOOT_BINLOAD := u-boot.bin 1205endif 1206 1207OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1208 --gap-fill=0xff 1209 1210u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1211 $(call if_changed,pad_cat) 1212 1213# PPC4xx needs the SPL at the end of the image, since the reset vector 1214# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1215# and need to introduce a new build target with the full blown U-Boot 1216# at the start padded up to the start of the SPL image. And then concat 1217# the SPL image to the end. 1218 1219OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1220 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1221u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1222 $(call if_changed,pad_cat) 1223 1224# Create a new ELF from a raw binary file. 1225ifndef PLATFORM_ELFENTRY 1226 PLATFORM_ELFENTRY = "_start" 1227endif 1228quiet_cmd_u-boot-elf ?= LD $@ 1229 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1230 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1231 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1232u-boot.elf: u-boot.bin 1233 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1234 $(call if_changed,u-boot-elf) 1235 1236ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1237 1238# Rule to link u-boot 1239# May be overridden by arch/$(ARCH)/config.mk 1240quiet_cmd_u-boot__ ?= LD $@ 1241 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1242 -T u-boot.lds $(u-boot-init) \ 1243 --start-group $(u-boot-main) --end-group \ 1244 $(PLATFORM_LIBS) -Map u-boot.map; \ 1245 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1246 1247quiet_cmd_smap = GEN common/system_map.o 1248cmd_smap = \ 1249 smap=`$(call SYSTEM_MAP,u-boot) | \ 1250 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1251 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1252 -c $(srctree)/common/system_map.c -o common/system_map.o 1253 1254u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1255 +$(call if_changed,u-boot__) 1256ifeq ($(CONFIG_KALLSYMS),y) 1257 $(call cmd,smap) 1258 $(call cmd,u-boot__) common/system_map.o 1259endif 1260 1261quiet_cmd_sym ?= SYM $@ 1262 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1263u-boot.sym: u-boot FORCE 1264 $(call if_changed,sym) 1265 1266# The actual objects are generated when descending, 1267# make sure no implicit rule kicks in 1268$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1269 1270# Handle descending into subdirectories listed in $(vmlinux-dirs) 1271# Preset locale variables to speed up the build process. Limit locale 1272# tweaks to this spot to avoid wrong language settings when running 1273# make menuconfig etc. 1274# Error messages still appears in the original language 1275 1276PHONY += $(u-boot-dirs) 1277$(u-boot-dirs): prepare scripts 1278 $(Q)$(MAKE) $(build)=$@ 1279 1280tools: prepare 1281# The "tools" are needed early 1282$(filter-out tools, $(u-boot-dirs)): tools 1283# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1284# is "yes"), so compile examples after U-Boot is compiled. 1285examples: $(filter-out examples, $(u-boot-dirs)) 1286 1287define filechk_uboot.release 1288 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1289endef 1290 1291# Store (new) UBOOTRELEASE string in include/config/uboot.release 1292include/config/uboot.release: include/config/auto.conf FORCE 1293 $(call filechk,uboot.release) 1294 1295 1296# Things we need to do before we recursively start building the kernel 1297# or the modules are listed in "prepare". 1298# A multi level approach is used. prepareN is processed before prepareN-1. 1299# archprepare is used in arch Makefiles and when processed asm symlink, 1300# version.h and scripts_basic is processed / created. 1301 1302# Listed in dependency order 1303PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1304 1305# prepare3 is used to check if we are building in a separate output directory, 1306# and if so do: 1307# 1) Check that make has not been executed in the kernel src $(srctree) 1308prepare3: include/config/uboot.release 1309ifneq ($(KBUILD_SRC),) 1310 @$(kecho) ' Using $(srctree) as source for U-Boot' 1311 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1312 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1313 echo >&2 " in the '$(srctree)' directory.";\ 1314 /bin/false; \ 1315 fi; 1316endif 1317 1318# prepare2 creates a makefile if using a separate output directory 1319prepare2: prepare3 outputmakefile 1320 1321prepare1: prepare2 $(version_h) $(timestamp_h) \ 1322 include/config/auto.conf 1323ifeq ($(wildcard $(LDSCRIPT)),) 1324 @echo >&2 " Could not find linker script." 1325 @/bin/false 1326endif 1327 1328archprepare: prepare1 scripts_basic 1329 1330prepare0: archprepare FORCE 1331 $(Q)$(MAKE) $(build)=. 1332 1333# All the preparing.. 1334prepare: prepare0 1335 1336# Generate some files 1337# --------------------------------------------------------------------------- 1338 1339define filechk_version.h 1340 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1341 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1342 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1343 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1344endef 1345 1346# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1347# The BSD date on the other hand behaves different and would produce errors 1348# with the misused '-d' switch. Respect that and search a working date with 1349# well known pre- and suffixes for the GNU variant of date. 1350define filechk_timestamp.h 1351 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1352 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1353 DATE=""; \ 1354 for date in gdate date.gnu date; do \ 1355 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1356 done; \ 1357 if test -n "$${DATE}"; then \ 1358 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1359 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1360 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1361 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1362 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1363 else \ 1364 return 42; \ 1365 fi; \ 1366 else \ 1367 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1368 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1369 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1370 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1371 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1372 fi) 1373endef 1374 1375$(version_h): include/config/uboot.release FORCE 1376 $(call filechk,version.h) 1377 1378$(timestamp_h): $(srctree)/Makefile FORCE 1379 $(call filechk,timestamp.h) 1380 1381checkbinman: tools 1382 @if ! ( echo 'import libfdt' | ( PYTHONPATH=tools $(PYTHON) )); then \ 1383 echo >&2; \ 1384 echo >&2 '*** binman needs the Python libfdt library.'; \ 1385 echo >&2 '*** Either install it on your system, or try:'; \ 1386 echo >&2 '***'; \ 1387 echo >&2 '*** sudo apt-get install swig libpython-dev'; \ 1388 echo >&2 '***'; \ 1389 echo >&2 '*** to have U-Boot build its own version.'; \ 1390 false; \ 1391 fi 1392 1393# --------------------------------------------------------------------------- 1394quiet_cmd_cpp_lds = LDS $@ 1395cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1396 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1397 1398u-boot.lds: $(LDSCRIPT) prepare FORCE 1399 $(call if_changed_dep,cpp_lds) 1400 1401spl/u-boot-spl.bin: spl/u-boot-spl 1402 @: 1403spl/u-boot-spl: tools prepare \ 1404 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1405 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1406 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1407 1408spl/sunxi-spl.bin: spl/u-boot-spl 1409 @: 1410 1411spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1412 @: 1413 1414spl/u-boot-spl.sfp: spl/u-boot-spl 1415 @: 1416 1417spl/boot.bin: spl/u-boot-spl 1418 @: 1419 1420tpl/u-boot-tpl.bin: tools prepare \ 1421 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1422 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1423 1424TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1425 1426FIND := find 1427FINDFLAGS := -L 1428 1429tags ctags: 1430 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1431 -name '*.[chS]' -print` 1432 ln -s ctags tags 1433 1434etags: 1435 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1436 -name '*.[chS]' -print` 1437cscope: 1438 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1439 cscope.files 1440 cscope -b -q -k 1441 1442SYSTEM_MAP = \ 1443 $(NM) $1 | \ 1444 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1445 LC_ALL=C sort 1446System.map: u-boot 1447 @$(call SYSTEM_MAP,$<) > $@ 1448 1449checkdtc: 1450 @if test $(call dtc-version) -lt 0104; then \ 1451 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1452 false; \ 1453 fi 1454 1455######################################################################### 1456 1457# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1458# R_AARCH64_RELATIVE (64-bit). 1459checkarmreloc: u-boot 1460 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1461 grep R_A | sort -u`"; \ 1462 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1463 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1464 echo "$< contains unexpected relocations: $$RELOC"; \ 1465 false; \ 1466 fi 1467 1468envtools: scripts_basic 1469 $(Q)$(MAKE) $(build)=tools/env 1470 1471tools-only: scripts_basic $(version_h) $(timestamp_h) 1472 $(Q)$(MAKE) $(build)=tools 1473 1474tools-all: export HOST_TOOLS_ALL=y 1475tools-all: envtools tools ; 1476 1477cross_tools: export CROSS_BUILD_TOOLS=y 1478cross_tools: tools ; 1479 1480.PHONY : CHANGELOG 1481CHANGELOG: 1482 git log --no-merges U-Boot-1_1_5.. | \ 1483 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1484 1485######################################################################### 1486 1487### 1488# Cleaning is done on three levels. 1489# make clean Delete most generated files 1490# Leave enough to build external modules 1491# make mrproper Delete the current configuration, and all generated files 1492# make distclean Remove editor backup files, patch leftover files and the like 1493 1494# Directories & files removed with 'make clean' 1495CLEAN_DIRS += $(MODVERDIR) \ 1496 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1497 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1498 1499CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1500 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1501 1502# Directories & files removed with 'make mrproper' 1503MRPROPER_DIRS += include/config include/generated spl tpl \ 1504 .tmp_objdiff 1505MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1506 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1507 1508# clean - Delete most, but leave enough to build external modules 1509# 1510clean: rm-dirs := $(CLEAN_DIRS) 1511clean: rm-files := $(CLEAN_FILES) 1512 1513clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1514 1515clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1516 1517PHONY += $(clean-dirs) clean archclean 1518$(clean-dirs): 1519 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1520 1521# TODO: Do not use *.cfgtmp 1522clean: $(clean-dirs) 1523 $(call cmd,rmdirs) 1524 $(call cmd,rmfiles) 1525 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1526 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1527 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1528 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1529 -o -name '*.symtypes' -o -name 'modules.order' \ 1530 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1531 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1532 -o -name '*.gcno' \) -type f -print | xargs rm -f 1533 1534# mrproper - Delete all generated files, including .config 1535# 1536mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1537mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1538mrproper-dirs := $(addprefix _mrproper_,scripts) 1539 1540PHONY += $(mrproper-dirs) mrproper archmrproper 1541$(mrproper-dirs): 1542 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1543 1544mrproper: clean $(mrproper-dirs) 1545 $(call cmd,rmdirs) 1546 $(call cmd,rmfiles) 1547 @rm -f arch/*/include/asm/arch 1548 1549# distclean 1550# 1551PHONY += distclean 1552 1553distclean: mrproper 1554 @find $(srctree) $(RCS_FIND_IGNORE) \ 1555 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1556 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1557 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1558 -o -name '*.pyc' \) \ 1559 -type f -print | xargs rm -f 1560 @rm -f boards.cfg 1561 1562backup: 1563 F=`basename $(srctree)` ; cd .. ; \ 1564 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1565 1566help: 1567 @echo 'Cleaning targets:' 1568 @echo ' clean - Remove most generated files but keep the config' 1569 @echo ' mrproper - Remove all generated files + config + various backup files' 1570 @echo ' distclean - mrproper + remove editor backup and patch files' 1571 @echo '' 1572 @echo 'Configuration targets:' 1573 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1574 @echo '' 1575 @echo 'Other generic targets:' 1576 @echo ' all - Build all necessary images depending on configuration' 1577 @echo ' tests - Build U-Boot for sandbox and run tests' 1578 @echo '* u-boot - Build the bare u-boot' 1579 @echo ' dir/ - Build all files in dir and below' 1580 @echo ' dir/file.[oisS] - Build specified target only' 1581 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1582 @echo ' (requires a recent binutils and recent build (System.map))' 1583 @echo ' tags/ctags - Generate ctags file for editors' 1584 @echo ' etags - Generate etags file for editors' 1585 @echo ' cscope - Generate cscope index' 1586 @echo ' ubootrelease - Output the release version string (use with make -s)' 1587 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1588 @echo " cfg - Don't build, just create the .cfg files" 1589 @echo " envtools - Build only the target-side environment tools" 1590 @echo '' 1591 @echo 'Static analysers' 1592 @echo ' checkstack - Generate a list of stack hogs' 1593 @echo '' 1594 @echo 'Documentation targets:' 1595 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1596 @echo '' 1597 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1598 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1599 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1600 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1601 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1602 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1603 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1604 @echo ' 1: warnings which may be relevant and do not occur too often' 1605 @echo ' 2: warnings which occur quite often but may still be relevant' 1606 @echo ' 3: more obscure warnings, can most likely be ignored' 1607 @echo ' Multiple levels can be combined with W=12 or W=123' 1608 @echo '' 1609 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1610 @echo 'For further info see the ./README file' 1611 1612tests: 1613 $(srctree)/test/run 1614 1615# Documentation targets 1616# --------------------------------------------------------------------------- 1617%docs: scripts_basic FORCE 1618 $(Q)$(MAKE) $(build)=scripts build_docproc 1619 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1620 1621endif #ifeq ($(config-targets),1) 1622endif #ifeq ($(mixed-targets),1) 1623 1624PHONY += checkstack ubootrelease ubootversion 1625 1626checkstack: 1627 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1628 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1629 1630ubootrelease: 1631 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1632 1633ubootversion: 1634 @echo $(UBOOTVERSION) 1635 1636# Single targets 1637# --------------------------------------------------------------------------- 1638# Single targets are compatible with: 1639# - build with mixed source and output 1640# - build with separate output dir 'make O=...' 1641# - external modules 1642# 1643# target-dir => where to store outputfile 1644# build-dir => directory in kernel source tree to use 1645 1646ifeq ($(KBUILD_EXTMOD),) 1647 build-dir = $(patsubst %/,%,$(dir $@)) 1648 target-dir = $(dir $@) 1649else 1650 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1651 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1652 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1653endif 1654 1655%.s: %.c prepare scripts FORCE 1656 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1657%.i: %.c prepare scripts FORCE 1658 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1659%.o: %.c prepare scripts FORCE 1660 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1661%.lst: %.c prepare scripts FORCE 1662 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1663%.s: %.S prepare scripts FORCE 1664 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1665%.o: %.S prepare scripts FORCE 1666 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1667%.symtypes: %.c prepare scripts FORCE 1668 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1669 1670# Modules 1671/: prepare scripts FORCE 1672 $(cmd_crmodverdir) 1673 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1674 $(build)=$(build-dir) 1675%/: prepare scripts FORCE 1676 $(cmd_crmodverdir) 1677 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1678 $(build)=$(build-dir) 1679%.ko: prepare scripts FORCE 1680 $(cmd_crmodverdir) 1681 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1682 $(build)=$(build-dir) $(@:.ko=.o) 1683 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1684 1685# FIXME Should go into a make.lib or something 1686# =========================================================================== 1687 1688quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1689 cmd_rmdirs = rm -rf $(rm-dirs) 1690 1691quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1692 cmd_rmfiles = rm -f $(rm-files) 1693 1694# read all saved command lines 1695 1696targets := $(wildcard $(sort $(targets))) 1697cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1698 1699ifneq ($(cmd_files),) 1700 $(cmd_files): ; # Do not try to update included dependency files 1701 include $(cmd_files) 1702endif 1703 1704endif # skip-makefile 1705 1706PHONY += FORCE 1707FORCE: 1708 1709# Declare the contents of the .PHONY variable as phony. We keep that 1710# information in a variable so we can use it in if_changed and friends. 1711.PHONY: $(PHONY) 1712