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 ?= $(objtree)/scripts/dtc/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_CFLAGS += -fshort-wchar -Werror 364KBUILD_AFLAGS := -D__ASSEMBLY__ 365 366# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 367UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 368UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 369 370export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 371export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 372export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 373export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 374export MAKE AWK PERL PYTHON 375export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 376 377export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 378export KBUILD_CFLAGS KBUILD_AFLAGS 379 380# When compiling out-of-tree modules, put MODVERDIR in the module 381# tree rather than in the kernel tree. The kernel tree might 382# even be read-only. 383export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 384 385# Files to ignore in find ... statements 386 387export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 388 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 389 -prune -o 390export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 391 --exclude CVS --exclude .pc --exclude .hg --exclude .git 392 393# =========================================================================== 394# Rules shared between *config targets and build targets 395 396# Basic helpers built in scripts/ 397PHONY += scripts_basic 398scripts_basic: 399 $(Q)$(MAKE) $(build)=scripts/basic 400 $(Q)rm -f .tmp_quiet_recordmcount 401 402# To avoid any implicit rule to kick in, define an empty command. 403scripts/basic/%: scripts_basic ; 404 405PHONY += outputmakefile 406# outputmakefile generates a Makefile in the output directory, if using a 407# separate output directory. This allows convenient use of make in the 408# output directory. 409outputmakefile: 410ifneq ($(KBUILD_SRC),) 411 $(Q)ln -fsn $(srctree) source 412 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 413 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 414endif 415 416# To make sure we do not include .config for any of the *config targets 417# catch them early, and hand them over to scripts/kconfig/Makefile 418# It is allowed to specify more targets when calling make, including 419# mixing *config targets and build targets. 420# For example 'make oldconfig all'. 421# Detect when mixed targets is specified, and make a second invocation 422# of make so .config is not included in this case either (for *config). 423 424version_h := include/generated/version_autogenerated.h 425timestamp_h := include/generated/timestamp_autogenerated.h 426 427no-dot-config-targets := clean clobber mrproper distclean \ 428 help %docs check% coccicheck \ 429 ubootversion backup tests 430 431config-targets := 0 432mixed-targets := 0 433dot-config := 1 434 435ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 436 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 437 dot-config := 0 438 endif 439endif 440 441ifeq ($(KBUILD_EXTMOD),) 442 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 443 config-targets := 1 444 ifneq ($(words $(MAKECMDGOALS)),1) 445 mixed-targets := 1 446 endif 447 endif 448endif 449 450ifeq ($(mixed-targets),1) 451# =========================================================================== 452# We're called with mixed targets (*config and build targets). 453# Handle them one by one. 454 455PHONY += $(MAKECMDGOALS) __build_one_by_one 456 457$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 458 @: 459 460__build_one_by_one: 461 $(Q)set -e; \ 462 for i in $(MAKECMDGOALS); do \ 463 $(MAKE) -f $(srctree)/Makefile $$i; \ 464 done 465 466else 467ifeq ($(config-targets),1) 468# =========================================================================== 469# *config targets only - make sure prerequisites are updated, and descend 470# in scripts/kconfig to make the *config target 471 472KBUILD_DEFCONFIG := sandbox_defconfig 473export KBUILD_DEFCONFIG KBUILD_KCONFIG 474 475config: scripts_basic outputmakefile FORCE 476 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 477 478%config: scripts_basic outputmakefile FORCE 479 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 480 481else 482# =========================================================================== 483# Build targets only - this includes vmlinux, arch specific targets, clean 484# targets and others. In general all targets except *config targets. 485 486# Additional helpers built in scripts/ 487# Carefully list dependencies so we do not try to build scripts twice 488# in parallel 489PHONY += scripts 490scripts: scripts_basic include/config/auto.conf 491 $(Q)$(MAKE) $(build)=$(@) 492 493ifeq ($(dot-config),1) 494# Read in config 495-include include/config/auto.conf 496 497# Read in dependencies to all Kconfig* files, make sure to run 498# oldconfig if changes are detected. 499-include include/config/auto.conf.cmd 500 501# To avoid any implicit rule to kick in, define an empty command 502$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 503 504# If .config is newer than include/config/auto.conf, someone tinkered 505# with it and forgot to run make oldconfig. 506# if auto.conf.cmd is missing then we are probably in a cleaned tree so 507# we execute the config step to be sure to catch updated Kconfig files 508include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 509 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 510 @# If the following part fails, include/config/auto.conf should be 511 @# deleted so "make silentoldconfig" will be re-run on the next build. 512 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 513 { rm -f include/config/auto.conf; false; } 514 @# include/config.h has been updated after "make silentoldconfig". 515 @# We need to touch include/config/auto.conf so it gets newer 516 @# than include/config.h. 517 @# Otherwise, 'make silentoldconfig' would be invoked twice. 518 $(Q)touch include/config/auto.conf 519 520u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE 521 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 522 523-include include/autoconf.mk 524-include include/autoconf.mk.dep 525 526# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 527# is up-to-date. When we switch to a different board configuration, old CONFIG 528# macros are still remaining in include/config/auto.conf. Without the following 529# gimmick, wrong config.mk would be included leading nasty warnings/errors. 530ifneq ($(wildcard $(KCONFIG_CONFIG)),) 531ifneq ($(wildcard include/config/auto.conf),) 532autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 533 include/config/auto.conf) 534ifeq ($(autoconf_is_old),) 535include config.mk 536include arch/$(ARCH)/Makefile 537endif 538endif 539endif 540 541# These are set by the arch-specific config.mk. Make sure they are exported 542# so they can be used when building an EFI application. 543export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 544export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 545export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 546export CFLAGS_EFI # Compiler flags to add when building EFI app 547export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 548export EFI_TARGET # binutils target if EFI is natively supported 549 550# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 551# that (or fail if absent). Otherwise, search for a linker script in a 552# standard location. 553 554ifndef LDSCRIPT 555 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 556 ifdef CONFIG_SYS_LDSCRIPT 557 # need to strip off double quotes 558 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 559 endif 560endif 561 562# If there is no specified link script, we look in a number of places for it 563ifndef LDSCRIPT 564 ifeq ($(wildcard $(LDSCRIPT)),) 565 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 566 endif 567 ifeq ($(wildcard $(LDSCRIPT)),) 568 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 569 endif 570 ifeq ($(wildcard $(LDSCRIPT)),) 571 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 572 endif 573endif 574 575else 576# Dummy target needed, because used as prerequisite 577include/config/auto.conf: ; 578endif # $(dot-config) 579 580# 581# Xtensa linker script cannot be preprocessed with -ansi because of 582# preprocessor operations on strings that don't make C identifiers. 583# 584ifeq ($(CONFIG_XTENSA),) 585LDPPFLAGS += -ansi 586endif 587 588ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 589KBUILD_CFLAGS += -Os 590else 591KBUILD_CFLAGS += -O2 592endif 593 594KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 595KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 596 597KBUILD_CFLAGS += -g 598# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 599# option to the assembler. 600KBUILD_AFLAGS += -g 601 602# Report stack usage if supported 603ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 604 KBUILD_CFLAGS += -fstack-usage 605endif 606 607KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 608 609# turn jbsr into jsr for m68k 610ifeq ($(ARCH),m68k) 611ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 612KBUILD_AFLAGS += -Wa,-gstabs,-S 613endif 614endif 615 616# Prohibit date/time macros, which would make the build non-deterministic 617KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 618 619include scripts/Makefile.extrawarn 620 621# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 622KBUILD_CPPFLAGS += $(KCPPFLAGS) 623KBUILD_AFLAGS += $(KAFLAGS) 624KBUILD_CFLAGS += $(KCFLAGS) 625 626# Use UBOOTINCLUDE when you must reference the include/ directory. 627# Needed to be compatible with the O= option 628UBOOTINCLUDE := \ 629 -Iinclude \ 630 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 631 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 632 $(if $(CONFIG_HAS_THUMB2),, \ 633 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 634 -I$(srctree)/arch/$(ARCH)/include \ 635 -include $(srctree)/include/linux/kconfig.h 636 637NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 638CHECKFLAGS += $(NOSTDINC_FLAGS) 639 640# FIX ME 641cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 642 $(NOSTDINC_FLAGS) 643c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 644 645######################################################################### 646# U-Boot objects....order is important (i.e. start must be first) 647 648HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 649 650libs-y += lib/ 651libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 652libs-$(CONFIG_OF_EMBED) += dts/ 653libs-y += fs/ 654libs-y += net/ 655libs-y += disk/ 656libs-y += drivers/ 657libs-y += drivers/cpu/ 658libs-y += drivers/dma/ 659libs-y += drivers/gpio/ 660libs-y += drivers/i2c/ 661libs-y += drivers/mtd/ 662libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 663libs-y += drivers/mtd/onenand/ 664libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 665libs-y += drivers/mtd/spi/ 666libs-y += drivers/net/ 667libs-y += drivers/net/phy/ 668libs-y += drivers/pci/ 669libs-y += drivers/power/ \ 670 drivers/power/domain/ \ 671 drivers/power/fuel_gauge/ \ 672 drivers/power/mfd/ \ 673 drivers/power/pmic/ \ 674 drivers/power/battery/ \ 675 drivers/power/regulator/ \ 676 drivers/power/dvfs/ \ 677 drivers/power/io-domain/ 678libs-y += drivers/spi/ 679libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 680libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 681libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 682libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 683libs-y += drivers/serial/ 684libs-y += drivers/usb/dwc3/ 685libs-y += drivers/usb/common/ 686libs-y += drivers/usb/emul/ 687libs-y += drivers/usb/eth/ 688libs-y += drivers/usb/gadget/ 689libs-y += drivers/usb/gadget/udc/ 690libs-y += drivers/usb/host/ 691libs-y += drivers/usb/musb/ 692libs-y += drivers/usb/musb-new/ 693libs-y += drivers/usb/phy/ 694libs-y += drivers/usb/ulpi/ 695libs-y += cmd/ 696libs-y += common/ 697libs-y += env/ 698libs-$(CONFIG_API) += api/ 699libs-$(CONFIG_HAS_POST) += post/ 700libs-y += test/ 701libs-y += test/dm/ 702libs-$(CONFIG_UT_ENV) += test/env/ 703libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 704 705libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 706 707libs-y := $(sort $(libs-y)) 708 709u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 710 711u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 712 713libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 714 715u-boot-init := $(head-y) 716u-boot-main := $(libs-y) 717 718 719# Add GCC lib 720ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 721PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 722else 723PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 724endif 725PLATFORM_LIBS += $(PLATFORM_LIBGCC) 726export PLATFORM_LIBS 727export PLATFORM_LIBGCC 728 729# Special flags for CPP when processing the linker script. 730# Pass the version down so we can handle backwards compatibility 731# on the fly. 732LDPPFLAGS += \ 733 -include $(srctree)/include/u-boot/u-boot.lds.h \ 734 -DCPUDIR=$(CPUDIR) \ 735 $(shell $(LD) --version | \ 736 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 737 738######################################################################### 739######################################################################### 740 741ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 742BOARD_SIZE_CHECK = \ 743 @actual=`wc -c $@ | awk '{print $$1}'`; \ 744 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 745 if test $$actual -gt $$limit; then \ 746 echo "$@ exceeds file size limit:" >&2 ; \ 747 echo " limit: $$limit bytes" >&2 ; \ 748 echo " actual: $$actual bytes" >&2 ; \ 749 echo " excess: $$((actual - limit)) bytes" >&2; \ 750 exit 1; \ 751 fi 752else 753BOARD_SIZE_CHECK = 754endif 755 756# Statically apply RELA-style relocations (currently arm64 only) 757# This is useful for arm64 where static relocation needs to be performed on 758# the raw binary, but certain simulators only accept an ELF file (but don't 759# do the relocation). 760ifneq ($(CONFIG_STATIC_RELA),) 761# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 762DO_STATIC_RELA = \ 763 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 764 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 765 tools/relocate-rela $(2) $(3) $$start $$end 766else 767DO_STATIC_RELA = 768endif 769 770# Always append ALL so that arch config.mk's can add custom ones 771ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 772 773ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 774ifeq ($(CONFIG_SPL_FSL_PBL),y) 775ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 776else 777ifneq ($(CONFIG_SECURE_BOOT), y) 778# For Secure Boot The Image needs to be signed and Header must also 779# be included. So The image has to be built explicitly 780ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 781endif 782endif 783ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 784ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 785ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 786else 787ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 788endif 789ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 790ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 791ifeq ($(CONFIG_SPL_FRAMEWORK),y) 792ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 793endif 794ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 795ifneq ($(CONFIG_SPL_TARGET),) 796ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 797endif 798ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 799ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 800ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 801 802ifneq ($(BUILD_ROM),) 803ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 804endif 805 806# enable combined SPL/u-boot/dtb rules for tegra 807ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 808ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 809ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 810endif 811 812# Add optional build target if defined in board/cpu/soc headers 813ifneq ($(CONFIG_BUILD_TARGET),) 814ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 815endif 816 817LDFLAGS_u-boot += $(LDFLAGS_FINAL) 818 819# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 820LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 821 822ifneq ($(CONFIG_SYS_TEXT_BASE),) 823LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 824endif 825 826# Normally we fill empty space with 0xff 827quiet_cmd_objcopy = OBJCOPY $@ 828cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 829 $(OBJCOPYFLAGS_$(@F)) $< $@ 830 831# Provide a version which does not do this, for use by EFI 832quiet_cmd_zobjcopy = OBJCOPY $@ 833cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 834 835quiet_cmd_efipayload = OBJCOPY $@ 836cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 837 838MKIMAGEOUTPUT ?= /dev/null 839 840quiet_cmd_mkimage = MKIMAGE $@ 841cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 842 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 843 844quiet_cmd_mkfitimage = MKIMAGE $@ 845cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \ 846 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 847 848quiet_cmd_cat = CAT $@ 849cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 850 851append = cat $(filter-out $< $(PHONY), $^) >> $@ 852 853quiet_cmd_pad_cat = CAT $@ 854cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 855 856cfg: u-boot.cfg 857 858quiet_cmd_cfgcheck = CFGCHK $2 859cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 860 $(srctree)/scripts/config_whitelist.txt $(srctree) 861 862all: $(ALL-y) cfg 863ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 864 @echo "===================== WARNING ======================" 865 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 866 @echo "(possibly in a subsequent patch in your series)" 867 @echo "before sending patches to the mailing list." 868 @echo "====================================================" 869endif 870 @# Check that this build does not use CONFIG options that we do not 871 @# know about unless they are in Kconfig. All the existing CONFIG 872 @# options are whitelisted, so new ones should not be added. 873 $(call cmd,cfgcheck,u-boot.cfg) 874 875PHONY += dtbs 876dtbs: dts/dt.dtb dts/dt-spl.dtb 877 @: 878dts/dt.dtb: u-boot 879 $(Q)$(MAKE) $(build)=dts dtbs 880 881ifeq ($(CONFIG_USING_KERNEL_DTB),y) 882dts/dt-spl.dtb: dts/dt.dtb 883 @: 884endif 885 886quiet_cmd_copy = COPY $@ 887 cmd_copy = cp $< $@ 888 889ifeq ($(CONFIG_MULTI_DTB_FIT),y) 890 891fit-dtb.blob: dts/dt.dtb FORCE 892 $(call if_changed,mkimage) 893 894MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 895 -a 0 -e 0 -E \ 896 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 897 898u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 899 $(call if_changed,cat) 900 901u-boot.bin: u-boot-fit-dtb.bin FORCE 902 $(call if_changed,copy) 903else ifeq ($(CONFIG_OF_SEPARATE),y) 904ifeq ($(CONFIG_USING_KERNEL_DTB),y) 905u-boot-dtb.bin: u-boot-nodtb.bin dts/dt-spl.dtb FORCE 906else 907u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 908endif 909 $(call if_changed,cat) 910 911u-boot.bin: u-boot-dtb.bin FORCE 912 $(call if_changed,copy) 913else 914u-boot.bin: u-boot-nodtb.bin FORCE 915 $(call if_changed,copy) 916endif 917 918%.imx: %.bin 919 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 920 921%.vyb: %.imx 922 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 923 924quiet_cmd_copy = COPY $@ 925 cmd_copy = cp $< $@ 926 927ifeq ($(CONFIG_USING_KERNEL_DTB),y) 928u-boot.dtb: dts/dt-spl.dtb FORCE 929else 930u-boot.dtb: dts/dt.dtb FORCE 931endif 932 $(call cmd,copy) 933 934OBJCOPYFLAGS_u-boot.hex := -O ihex 935 936OBJCOPYFLAGS_u-boot.srec := -O srec 937 938u-boot.hex u-boot.srec: u-boot FORCE 939 $(call if_changed,objcopy) 940 941OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 942 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 943 944binary_size_check: u-boot-nodtb.bin FORCE 945 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 946 map_size=$(shell cat u-boot.map | \ 947 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 948 | sed 's/0X//g' \ 949 | bc); \ 950 if [ "" != "$$map_size" ]; then \ 951 if test $$map_size -ne $$file_size; then \ 952 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 953 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 954 exit 1; \ 955 fi \ 956 fi 957 958u-boot-nodtb.bin: u-boot FORCE 959 $(call if_changed,objcopy) 960 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 961 $(BOARD_SIZE_CHECK) 962 963u-boot.ldr: u-boot 964 $(CREATE_LDR_ENV) 965 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 966 $(BOARD_SIZE_CHECK) 967 968# binman 969# --------------------------------------------------------------------------- 970quiet_cmd_binman = BINMAN $@ 971cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 972 -I . -I $(srctree)/board/$(BOARDDIR) $< 973 974OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 975 976OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 977 978u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 979 $(call if_changed,objcopy) 980 981# 982# U-Boot entry point, needed for booting of full-blown U-Boot 983# from the SPL U-Boot version. 984# 985ifndef CONFIG_SYS_UBOOT_START 986CONFIG_SYS_UBOOT_START := 0 987endif 988 989# Create a file containing the configuration options the image was built with 990quiet_cmd_cpp_cfg = CFG $@ 991cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 992 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 993 994# Boards with more complex image requirments can provide an .its source file 995# or a generator script 996ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 997U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 998else 999ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1000U_BOOT_ITS := u-boot.its 1001$(U_BOOT_ITS): FORCE 1002 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1003 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1004endif 1005endif 1006 1007ifdef CONFIG_SPL_LOAD_FIT 1008MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1009 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1010 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1011 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1012else 1013MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1014 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1015 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1016MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1017 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1018 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1019u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1020CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1021endif 1022 1023MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1024 1025MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1026 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1027 1028MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1029 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1030 $(if $(KEYDIR),-k $(KEYDIR)) 1031 1032MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1033 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1034 1035u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1036 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1037 $(call if_changed,mkimage) 1038 1039u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1040 $(call if_changed,mkfitimage) 1041 1042u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1043 $(call if_changed,mkimage) 1044 1045u-boot.sha1: u-boot.bin 1046 tools/ubsha1 u-boot.bin 1047 1048u-boot.dis: u-boot 1049 $(OBJDUMP) -d $< > $@ 1050 1051ifdef CONFIG_TPL 1052SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 1053else 1054SPL_PAYLOAD := u-boot.bin 1055endif 1056 1057OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1058 --pad-to=$(CONFIG_SPL_PAD_TO) 1059u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1060 $(call if_changed,pad_cat) 1061 1062MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1063 1064lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1065 $(call if_changed,mkimage) 1066 1067OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1068 1069lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1070 $(call if_changed,objcopy) 1071 1072OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1073 1074lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1075 $(call if_changed,objcopy) 1076 1077lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1078 $(call if_changed,cat) 1079 1080CLEAN_FILES += lpc32xx-* 1081 1082OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1083 --pad-to=$(CONFIG_TPL_PAD_TO) 1084tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1085 $(call if_changed,pad_cat) 1086 1087SPL: spl/u-boot-spl.bin FORCE 1088 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1089 1090u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1091 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1092 1093MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1094 1095u-boot.ubl: u-boot-with-spl.bin FORCE 1096 $(call if_changed,mkimage) 1097 1098MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1099 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1100 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1101spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1102 $(call if_changed,mkimage) 1103 1104OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1105u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1106 $(call if_changed,pad_cat) 1107 1108u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1109 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1110u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1111 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1112 1113# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1114# Both images are created using mkimage (crc etc), so that the ROM 1115# bootloader can check its integrity. Padding needs to be done to the 1116# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1117# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1118# The resulting image containing both U-Boot images is called u-boot.spr 1119MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1120 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1121spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1122 $(call if_changed,mkimage) 1123 1124OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1125 --gap-fill=0xff 1126u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1127 $(call if_changed,pad_cat) 1128 1129ifneq ($(CONFIG_ARCH_SOCFPGA),) 1130quiet_cmd_socboot = SOCBOOT $@ 1131cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1132 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1133 u-boot.img > $@ || rm -f $@ 1134u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1135 $(call if_changed,socboot) 1136endif 1137 1138# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1139# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1140# the middle. This is handled by binman based on an image description in the 1141# board's device tree. 1142ifneq ($(CONFIG_X86_RESET_VECTOR),) 1143rom: u-boot.rom FORCE 1144 1145refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1146 $(call if_changed,copy) 1147 1148quiet_cmd_ldr = LD $@ 1149cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1150 $(filter-out FORCE,$^) -o $@ 1151 1152u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1153 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1154 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1155 $(call if_changed,binman) 1156 1157OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1158u-boot-x86-16bit.bin: u-boot FORCE 1159 $(call if_changed,objcopy) 1160endif 1161 1162ifneq ($(CONFIG_ARCH_SUNXI),) 1163u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1164 $(call if_changed,binman) 1165endif 1166 1167ifneq ($(CONFIG_TEGRA),) 1168OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1169u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1170 $(call if_changed,pad_cat) 1171 1172OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1173u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1174 $(call if_changed,pad_cat) 1175 1176u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1177 $(call if_changed,copy) 1178endif 1179 1180OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1181u-boot-app.efi: u-boot FORCE 1182 $(call if_changed,zobjcopy) 1183 1184u-boot.bin.o: u-boot.bin FORCE 1185 $(call if_changed,efipayload) 1186 1187u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1188 $(call if_changed_dep,cpp_lds) 1189 1190# Rule to link the EFI payload which contains a stub and a U-Boot binary 1191quiet_cmd_u-boot_payload ?= LD $@ 1192 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1193 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1194 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1195 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1196 1197u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1198 $(call if_changed,u-boot_payload) 1199 1200OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1201u-boot-payload.efi: u-boot-payload FORCE 1202 $(call if_changed,zobjcopy) 1203 1204u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1205 $(call if_changed,cat) 1206 1207#Add a target to create boot binary having SPL binary in PBI format 1208#concatenated with u-boot binary. It is need by PowerPC SoC having 1209#internal SRAM <= 512KB. 1210MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1211 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1212 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1213 1214spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1215 $(call if_changed,mkimage) 1216 1217ifeq ($(ARCH),arm) 1218UBOOT_BINLOAD := u-boot.img 1219else 1220UBOOT_BINLOAD := u-boot.bin 1221endif 1222 1223OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1224 --gap-fill=0xff 1225 1226u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1227 $(call if_changed,pad_cat) 1228 1229# PPC4xx needs the SPL at the end of the image, since the reset vector 1230# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1231# and need to introduce a new build target with the full blown U-Boot 1232# at the start padded up to the start of the SPL image. And then concat 1233# the SPL image to the end. 1234 1235OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1236 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1237u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1238 $(call if_changed,pad_cat) 1239 1240# Create a new ELF from a raw binary file. 1241ifndef PLATFORM_ELFENTRY 1242 PLATFORM_ELFENTRY = "_start" 1243endif 1244quiet_cmd_u-boot-elf ?= LD $@ 1245 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1246 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1247 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1248u-boot.elf: u-boot.bin 1249 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1250 $(call if_changed,u-boot-elf) 1251 1252ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1253 1254# Rule to link u-boot 1255# May be overridden by arch/$(ARCH)/config.mk 1256quiet_cmd_u-boot__ ?= LD $@ 1257 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1258 -T u-boot.lds $(u-boot-init) \ 1259 --start-group $(u-boot-main) --end-group \ 1260 $(PLATFORM_LIBS) -Map u-boot.map; \ 1261 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1262 1263quiet_cmd_smap = GEN common/system_map.o 1264cmd_smap = \ 1265 smap=`$(call SYSTEM_MAP,u-boot) | \ 1266 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1267 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1268 -c $(srctree)/common/system_map.c -o common/system_map.o 1269 1270u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1271 +$(call if_changed,u-boot__) 1272ifeq ($(CONFIG_KALLSYMS),y) 1273 $(call cmd,smap) 1274 $(call cmd,u-boot__) common/system_map.o 1275endif 1276 1277quiet_cmd_sym ?= SYM $@ 1278 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1279u-boot.sym: u-boot FORCE 1280 $(call if_changed,sym) 1281 1282# The actual objects are generated when descending, 1283# make sure no implicit rule kicks in 1284$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1285 1286# Handle descending into subdirectories listed in $(vmlinux-dirs) 1287# Preset locale variables to speed up the build process. Limit locale 1288# tweaks to this spot to avoid wrong language settings when running 1289# make menuconfig etc. 1290# Error messages still appears in the original language 1291 1292PHONY += $(u-boot-dirs) 1293$(u-boot-dirs): prepare scripts 1294 $(Q)$(MAKE) $(build)=$@ 1295 1296tools: prepare 1297# The "tools" are needed early 1298$(filter-out tools, $(u-boot-dirs)): tools 1299# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1300# is "yes"), so compile examples after U-Boot is compiled. 1301examples: $(filter-out examples, $(u-boot-dirs)) 1302 1303define filechk_uboot.release 1304 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1305endef 1306 1307# Store (new) UBOOTRELEASE string in include/config/uboot.release 1308include/config/uboot.release: include/config/auto.conf FORCE 1309 $(call filechk,uboot.release) 1310 1311 1312# Things we need to do before we recursively start building the kernel 1313# or the modules are listed in "prepare". 1314# A multi level approach is used. prepareN is processed before prepareN-1. 1315# archprepare is used in arch Makefiles and when processed asm symlink, 1316# version.h and scripts_basic is processed / created. 1317 1318# Listed in dependency order 1319PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1320 1321# prepare3 is used to check if we are building in a separate output directory, 1322# and if so do: 1323# 1) Check that make has not been executed in the kernel src $(srctree) 1324prepare3: include/config/uboot.release 1325ifneq ($(KBUILD_SRC),) 1326 @$(kecho) ' Using $(srctree) as source for U-Boot' 1327 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1328 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1329 echo >&2 " in the '$(srctree)' directory.";\ 1330 /bin/false; \ 1331 fi; 1332endif 1333 1334# prepare2 creates a makefile if using a separate output directory 1335prepare2: prepare3 outputmakefile 1336 1337prepare1: prepare2 $(version_h) $(timestamp_h) \ 1338 include/config/auto.conf 1339ifeq ($(wildcard $(LDSCRIPT)),) 1340 @echo >&2 " Could not find linker script." 1341 @/bin/false 1342endif 1343 1344archprepare: prepare1 scripts_basic 1345 1346prepare0: archprepare FORCE 1347 $(Q)$(MAKE) $(build)=. 1348 1349# All the preparing.. 1350prepare: prepare0 1351 1352# Generate some files 1353# --------------------------------------------------------------------------- 1354 1355define filechk_version.h 1356 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1357 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1358 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1359 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1360endef 1361 1362# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1363# The BSD date on the other hand behaves different and would produce errors 1364# with the misused '-d' switch. Respect that and search a working date with 1365# well known pre- and suffixes for the GNU variant of date. 1366define filechk_timestamp.h 1367 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1368 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1369 DATE=""; \ 1370 for date in gdate date.gnu date; do \ 1371 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1372 done; \ 1373 if test -n "$${DATE}"; then \ 1374 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1375 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1376 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1377 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1378 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1379 else \ 1380 return 42; \ 1381 fi; \ 1382 else \ 1383 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1384 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1385 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1386 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1387 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1388 fi) 1389endef 1390 1391$(version_h): include/config/uboot.release FORCE 1392 $(call filechk,version.h) 1393 1394$(timestamp_h): $(srctree)/Makefile FORCE 1395 $(call filechk,timestamp.h) 1396 1397# --------------------------------------------------------------------------- 1398quiet_cmd_cpp_lds = LDS $@ 1399cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1400 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1401 1402u-boot.lds: $(LDSCRIPT) prepare FORCE 1403 $(call if_changed_dep,cpp_lds) 1404 1405spl/u-boot-spl.bin: spl/u-boot-spl 1406 @: 1407spl/u-boot-spl: tools prepare \ 1408 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1409 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1410 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1411 1412spl/sunxi-spl.bin: spl/u-boot-spl 1413 @: 1414 1415spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1416 @: 1417 1418spl/u-boot-spl.sfp: spl/u-boot-spl 1419 @: 1420 1421spl/boot.bin: spl/u-boot-spl 1422 @: 1423 1424tpl/u-boot-tpl.bin: tools prepare \ 1425 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1426 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1427 1428TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1429 1430FIND := find 1431FINDFLAGS := -L 1432 1433tags ctags: 1434 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1435 -name '*.[chS]' -print` 1436 ln -s ctags tags 1437 1438etags: 1439 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1440 -name '*.[chS]' -print` 1441cscope: 1442 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1443 cscope.files 1444 cscope -b -q -k 1445 1446SYSTEM_MAP = \ 1447 $(NM) $1 | \ 1448 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1449 LC_ALL=C sort 1450System.map: u-boot 1451 @$(call SYSTEM_MAP,$<) > $@ 1452 1453######################################################################### 1454 1455# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1456# R_AARCH64_RELATIVE (64-bit). 1457checkarmreloc: u-boot 1458 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1459 grep R_A | sort -u`"; \ 1460 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1461 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1462 echo "$< contains unexpected relocations: $$RELOC"; \ 1463 false; \ 1464 fi 1465 1466envtools: scripts_basic 1467 $(Q)$(MAKE) $(build)=tools/env 1468 1469tools-only: scripts_basic $(version_h) $(timestamp_h) 1470 $(Q)$(MAKE) $(build)=tools 1471 1472tools-all: export HOST_TOOLS_ALL=y 1473tools-all: envtools tools ; 1474 1475cross_tools: export CROSS_BUILD_TOOLS=y 1476cross_tools: tools ; 1477 1478.PHONY : CHANGELOG 1479CHANGELOG: 1480 git log --no-merges U-Boot-1_1_5.. | \ 1481 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1482 1483######################################################################### 1484 1485### 1486# Cleaning is done on three levels. 1487# make clean Delete most generated files 1488# Leave enough to build external modules 1489# make mrproper Delete the current configuration, and all generated files 1490# make distclean Remove editor backup files, patch leftover files and the like 1491 1492# Directories & files removed with 'make clean' 1493CLEAN_DIRS += $(MODVERDIR) \ 1494 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1495 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1496 1497CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1498 boot* u-boot* MLO* SPL System.map fit-dtb.blob *.bin *.img 1499 1500# Directories & files removed with 'make mrproper' 1501MRPROPER_DIRS += include/config include/generated spl tpl \ 1502 .tmp_objdiff 1503MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1504 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1505 1506# clean - Delete most, but leave enough to build external modules 1507# 1508clean: rm-dirs := $(CLEAN_DIRS) 1509clean: rm-files := $(CLEAN_FILES) 1510 1511clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1512 1513clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1514 1515PHONY += $(clean-dirs) clean archclean 1516$(clean-dirs): 1517 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1518 1519# TODO: Do not use *.cfgtmp 1520clean: $(clean-dirs) 1521 $(call cmd,rmdirs) 1522 $(call cmd,rmfiles) 1523 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1524 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1525 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1526 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1527 -o -name '*.symtypes' -o -name 'modules.order' \ 1528 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1529 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1530 -o -name '*.gcno' \) -type f -print | xargs rm -f 1531 1532# mrproper - Delete all generated files, including .config 1533# 1534mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1535mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1536mrproper-dirs := $(addprefix _mrproper_,scripts) 1537 1538PHONY += $(mrproper-dirs) mrproper archmrproper 1539$(mrproper-dirs): 1540 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1541 1542mrproper: clean $(mrproper-dirs) 1543 $(call cmd,rmdirs) 1544 $(call cmd,rmfiles) 1545 @rm -f arch/*/include/asm/arch 1546 1547# distclean 1548# 1549PHONY += distclean 1550 1551distclean: mrproper 1552 @find $(srctree) $(RCS_FIND_IGNORE) \ 1553 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1554 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1555 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1556 -o -name '*.pyc' \) \ 1557 -type f -print | xargs rm -f 1558 @rm -f boards.cfg 1559 1560backup: 1561 F=`basename $(srctree)` ; cd .. ; \ 1562 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1563 1564help: 1565 @echo 'Cleaning targets:' 1566 @echo ' clean - Remove most generated files but keep the config' 1567 @echo ' mrproper - Remove all generated files + config + various backup files' 1568 @echo ' distclean - mrproper + remove editor backup and patch files' 1569 @echo '' 1570 @echo 'Configuration targets:' 1571 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1572 @echo '' 1573 @echo 'Other generic targets:' 1574 @echo ' all - Build all necessary images depending on configuration' 1575 @echo ' tests - Build U-Boot for sandbox and run tests' 1576 @echo '* u-boot - Build the bare u-boot' 1577 @echo ' dir/ - Build all files in dir and below' 1578 @echo ' dir/file.[oisS] - Build specified target only' 1579 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1580 @echo ' (requires a recent binutils and recent build (System.map))' 1581 @echo ' tags/ctags - Generate ctags file for editors' 1582 @echo ' etags - Generate etags file for editors' 1583 @echo ' cscope - Generate cscope index' 1584 @echo ' ubootrelease - Output the release version string (use with make -s)' 1585 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1586 @echo " cfg - Don't build, just create the .cfg files" 1587 @echo " envtools - Build only the target-side environment tools" 1588 @echo '' 1589 @echo 'Static analysers' 1590 @echo ' checkstack - Generate a list of stack hogs' 1591 @echo '' 1592 @echo 'Documentation targets:' 1593 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1594 @echo '' 1595 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1596 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1597 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1598 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1599 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1600 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1601 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1602 @echo ' 1: warnings which may be relevant and do not occur too often' 1603 @echo ' 2: warnings which occur quite often but may still be relevant' 1604 @echo ' 3: more obscure warnings, can most likely be ignored' 1605 @echo ' Multiple levels can be combined with W=12 or W=123' 1606 @echo '' 1607 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1608 @echo 'For further info see the ./README file' 1609 1610tests: 1611 $(srctree)/test/run 1612 1613# Documentation targets 1614# --------------------------------------------------------------------------- 1615%docs: scripts_basic FORCE 1616 $(Q)$(MAKE) $(build)=scripts build_docproc 1617 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1618 1619endif #ifeq ($(config-targets),1) 1620endif #ifeq ($(mixed-targets),1) 1621 1622PHONY += checkstack ubootrelease ubootversion 1623 1624checkstack: 1625 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1626 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1627 1628ubootrelease: 1629 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1630 1631ubootversion: 1632 @echo $(UBOOTVERSION) 1633 1634# Single targets 1635# --------------------------------------------------------------------------- 1636# Single targets are compatible with: 1637# - build with mixed source and output 1638# - build with separate output dir 'make O=...' 1639# - external modules 1640# 1641# target-dir => where to store outputfile 1642# build-dir => directory in kernel source tree to use 1643 1644ifeq ($(KBUILD_EXTMOD),) 1645 build-dir = $(patsubst %/,%,$(dir $@)) 1646 target-dir = $(dir $@) 1647else 1648 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1649 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1650 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1651endif 1652 1653%.s: %.c prepare scripts FORCE 1654 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1655%.i: %.c prepare scripts FORCE 1656 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1657%.o: %.c prepare scripts FORCE 1658 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1659%.lst: %.c prepare scripts FORCE 1660 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1661%.s: %.S prepare scripts FORCE 1662 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1663%.o: %.S prepare scripts FORCE 1664 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1665%.symtypes: %.c prepare scripts FORCE 1666 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1667 1668# Modules 1669/: prepare scripts FORCE 1670 $(cmd_crmodverdir) 1671 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1672 $(build)=$(build-dir) 1673%/: prepare scripts FORCE 1674 $(cmd_crmodverdir) 1675 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1676 $(build)=$(build-dir) 1677%.ko: prepare scripts FORCE 1678 $(cmd_crmodverdir) 1679 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1680 $(build)=$(build-dir) $(@:.ko=.o) 1681 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1682 1683# FIXME Should go into a make.lib or something 1684# =========================================================================== 1685 1686quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1687 cmd_rmdirs = rm -rf $(rm-dirs) 1688 1689quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1690 cmd_rmfiles = rm -f $(rm-files) 1691 1692# read all saved command lines 1693 1694targets := $(wildcard $(sort $(targets))) 1695cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1696 1697ifneq ($(cmd_files),) 1698 $(cmd_files): ; # Do not try to update included dependency files 1699 include $(cmd_files) 1700endif 1701 1702endif # skip-makefile 1703 1704PHONY += FORCE 1705FORCE: 1706 1707# Declare the contents of the .PHONY variable as phony. We keep that 1708# information in a variable so we can use it in if_changed and friends. 1709.PHONY: $(PHONY) 1710