1 # SPDX-License-Identifier: GPL-2.0+
10 # To see a list of typical targets execute "make help"
11 # More info can be located in ./README
12 # Comments in this file are targeted only to the developer, do not
13 # expect to learn how to build the kernel reading this file.
15 # o Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour);
17 # o Look for make include files relative to root of kernel src
18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
20 # Avoid funny character set dependencies
24 export LC_COLLATE LC_NUMERIC
26 # Avoid interference with shell env settings
29 # We are using a recursive build, so we need to do a little thinking
30 # to get the ordering right.
32 # Most importantly: sub-Makefiles should only ever modify files in
33 # their own directory. If in some directory we have a dependency on
34 # a file in another dir (which doesn't happen often, but it's often
35 # unavoidable when linking the built-in.o targets which finally
36 # turn into vmlinux), we will call a sub make in that other dir, and
37 # after that we are sure that everything which is in that other dir
40 # The only cases where we need to modify files which have global
41 # effects are thus separated out and done before the recursive
42 # descending is started. They are now explicitly listed as the
46 # ---------------------------------------------------------------------------
48 # Normally, we echo the whole command before executing it. By making
49 # that echo $($(quiet)$(cmd)), we now have the possibility to set
50 # $(quiet) to choose other forms of output instead, e.g.
52 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
55 # If $(quiet) is empty, the whole command will be printed.
56 # If it is set to "quiet_", only the short version will be printed.
57 # If it is set to "silent_", nothing will be printed at all, since
58 # the variable $(silent_cmd_cc_o_c) doesn't exist.
60 # A simple variant is to prefix commands with $(Q) - that's useful
61 # for commands that shall be hidden in non-verbose mode.
65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
68 # To put more focus on warnings, be less verbose as default
69 # Use 'make V=1' to see the full commands
71 ifeq ("$(origin V)", "command line")
78 ifeq ($(KBUILD_VERBOSE),1)
86 # If the user is running make -s (silent mode), suppress echoing of
89 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
99 export quiet Q KBUILD_VERBOSE
101 # kbuild supports saving output files in a separate directory.
102 # To locate output files in a separate directory two syntaxes are supported.
103 # In both cases the working directory must be the root of the kernel src.
105 # Use "make O=dir/to/store/output/files/"
107 # 2) Set KBUILD_OUTPUT
108 # Set the environment variable KBUILD_OUTPUT to point to the directory
109 # where the output files shall be placed.
110 # export KBUILD_OUTPUT=dir/to/store/output/files/
113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
116 # KBUILD_SRC is set on invocation of make in OBJ directory
117 # KBUILD_SRC is not intended to be used by the regular user (for now)
118 ifeq ($(KBUILD_SRC),)
120 # OK, Make called in directory where kernel src resides
121 # Do we want to locate output files in a separate directory?
122 ifeq ("$(origin O)", "command line")
123 KBUILD_OUTPUT := $(O)
126 # That's our default target when none is given on the command line
130 # Cancel implicit rules on top Makefile
131 $(CURDIR)/Makefile Makefile: ;
133 ifneq ($(KBUILD_OUTPUT),)
134 # Invoke a second make in the output directory, passing relevant variables
135 # check that the output directory actually exists
136 saved-output := $(KBUILD_OUTPUT)
137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
139 $(if $(KBUILD_OUTPUT),, \
140 $(error failed to create output directory "$(saved-output)"))
142 PHONY += $(MAKECMDGOALS) sub-make
144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
148 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
151 # Leave processing to above invocation of make
153 endif # ifneq ($(KBUILD_OUTPUT),)
154 endif # ifeq ($(KBUILD_SRC),)
156 # We process the rest of the Makefile if this is the final invocation of make
157 ifeq ($(skip-makefile),)
159 # Do not print "Entering directory ...",
160 # but we want to display it when entering to the output directory
161 # so that IDEs/editors are able to understand relative filenames.
162 MAKEFLAGS += --no-print-directory
164 # Call a source code checker (by default, "sparse") as part of the
167 # Use 'make C=1' to enable checking of only re-compiled files.
168 # Use 'make C=2' to enable checking of *all* source files, regardless
169 # of whether they are re-compiled or not.
171 # See the file "Documentation/sparse.txt" for more details, including
172 # where to get the "sparse" utility.
174 ifeq ("$(origin C)", "command line")
175 KBUILD_CHECKSRC = $(C)
177 ifndef KBUILD_CHECKSRC
181 # Use make M=dir to specify directory of external module to build
182 # Old syntax make ... SUBDIRS=$PWD is still supported
183 # Setting the environment variable KBUILD_EXTMOD take precedence
185 KBUILD_EXTMOD ?= $(SUBDIRS)
188 ifeq ("$(origin M)", "command line")
189 KBUILD_EXTMOD := $(M)
192 # If building an external module we do not care about the all: rule
193 # but instead _all depend on modules
195 ifeq ($(KBUILD_EXTMOD),)
201 ifeq ($(KBUILD_SRC),)
202 # building in the source tree
205 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206 # building in a subdirectory of the source tree
209 srctree := $(KBUILD_SRC)
216 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
218 export srctree objtree VPATH
220 # Make sure CDPATH settings don't interfere
223 #########################################################################
225 HOSTARCH := $(shell uname -m | \
227 -e s/sun4u/sparc64/ \
230 -e s/ppc64/powerpc/ \
232 -e s/macppc/powerpc/\
235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236 sed -e 's/\(cygwin\).*/cygwin/')
238 export HOSTARCH HOSTOS
240 #########################################################################
242 # set default to nothing for native builds
243 ifeq ($(HOSTARCH),$(ARCH))
247 KCONFIG_CONFIG ?= .config
248 export KCONFIG_CONFIG
250 # SHELL used by kbuild
251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252 else if [ -x /bin/bash ]; then echo /bin/bash; \
253 else echo sh; fi ; fi)
257 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258 $(if $(CONFIG_TOOLS_DEBUG),-g)
261 # With the move to GCC 6, we have implicitly upgraded our language
262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264 # have older compilers as their default, so we make it explicit for
265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266 CSTD_FLAG := -std=gnu11
267 ifeq ($(HOSTOS),linux)
268 HOSTCFLAGS += $(CSTD_FLAG)
271 ifeq ($(HOSTOS),cygwin)
275 # Mac OS X / Darwin's C preprocessor is Apple specific. It
276 # generates numerous errors and warnings. We want to bypass it
277 # and use GNU C's cpp. To do this we pass the -traditional-cpp
278 # option to the compiler. Note that the -traditional-cpp flag
279 # DOES NOT have the same semantics as GNU C's flag, all it does
280 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
282 # Apple's linker is similar, thanks to the new 2 stage linking
283 # multiple symbol definitions are treated as errors, hence the
284 # -multiply_defined suppress option to turn off this error.
286 ifeq ($(HOSTOS),darwin)
287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
289 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
291 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
294 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
295 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
297 # Snow Leopards build environment has no longer restrictions as described above
298 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
299 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
300 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
302 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
303 # in some host tools which is a problem then ... so disable ASLR for these
305 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
307 # macOS Mojave (10.14.X)
308 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
309 HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
312 # Decide whether to build built-in, modular, or both.
313 # Normally, just do built-in.
318 # If we have only "make modules", don't compile built-in objects.
319 # When we're building modules with modversions, we need to consider
320 # the built-in objects during the descend as well, in order to
321 # make sure the checksums are up to date before we record them.
323 ifeq ($(MAKECMDGOALS),modules)
324 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
327 # If we have "make <whatever> modules", compile modules
328 # in addition to whatever we do anyway.
329 # Just "make" or "make all" shall build modules as well
331 # U-Boot does not need modules
332 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
333 # KBUILD_MODULES := 1
336 #ifeq ($(MAKECMDGOALS),)
337 # KBUILD_MODULES := 1
340 export KBUILD_MODULES KBUILD_BUILTIN
341 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
343 # We need some generic definitions (do not try to remake the file).
344 scripts/Kbuild.include: ;
345 include scripts/Kbuild.include
347 # Make variables (CC, etc...)
349 AS = $(CROSS_COMPILE)as
351 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
352 LD = $(CROSS_COMPILE)ld.bfd
354 LD = $(CROSS_COMPILE)ld
356 CC = $(CROSS_COMPILE)gcc
358 AR = $(CROSS_COMPILE)ar
359 NM = $(CROSS_COMPILE)nm
360 LDR = $(CROSS_COMPILE)ldr
361 STRIP = $(CROSS_COMPILE)strip
362 OBJCOPY = $(CROSS_COMPILE)objcopy
363 OBJDUMP = $(CROSS_COMPILE)objdump
371 DTC ?= $(objtree)/scripts/dtc/dtc
374 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
375 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
377 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
379 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
380 -Wno-format-security \
381 -fno-builtin -ffreestanding $(CSTD_FLAG)
382 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
383 KBUILD_AFLAGS := -D__ASSEMBLY__
385 # Don't generate position independent code
386 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
387 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
389 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
390 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
391 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
393 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
394 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
395 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
396 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
397 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
398 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
400 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
401 export KBUILD_CFLAGS KBUILD_AFLAGS
403 # When compiling out-of-tree modules, put MODVERDIR in the module
404 # tree rather than in the kernel tree. The kernel tree might
406 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
408 # Files to ignore in find ... statements
410 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
411 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
413 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
414 --exclude CVS --exclude .pc --exclude .hg --exclude .git
416 # ===========================================================================
417 # Rules shared between *config targets and build targets
419 # Basic helpers built in scripts/
420 PHONY += scripts_basic
422 $(Q)$(MAKE) $(build)=scripts/basic
423 $(Q)rm -f .tmp_quiet_recordmcount
425 # To avoid any implicit rule to kick in, define an empty command.
426 scripts/basic/%: scripts_basic ;
428 PHONY += outputmakefile
429 # outputmakefile generates a Makefile in the output directory, if using a
430 # separate output directory. This allows convenient use of make in the
433 ifneq ($(KBUILD_SRC),)
434 $(Q)ln -fsn $(srctree) source
435 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
436 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
439 # To make sure we do not include .config for any of the *config targets
440 # catch them early, and hand them over to scripts/kconfig/Makefile
441 # It is allowed to specify more targets when calling make, including
442 # mixing *config targets and build targets.
443 # For example 'make oldconfig all'.
444 # Detect when mixed targets is specified, and make a second invocation
445 # of make so .config is not included in this case either (for *config).
447 version_h := include/generated/version_autogenerated.h
448 timestamp_h := include/generated/timestamp_autogenerated.h
449 defaultenv_h := include/generated/defaultenv_autogenerated.h
451 no-dot-config-targets := clean clobber mrproper distclean \
452 help %docs check% coccicheck \
453 ubootversion backup tests check qcheck
459 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
460 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
465 ifeq ($(KBUILD_EXTMOD),)
466 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
468 ifneq ($(words $(MAKECMDGOALS)),1)
474 ifeq ($(mixed-targets),1)
475 # ===========================================================================
476 # We're called with mixed targets (*config and build targets).
477 # Handle them one by one.
479 PHONY += $(MAKECMDGOALS) __build_one_by_one
481 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
486 for i in $(MAKECMDGOALS); do \
487 $(MAKE) -f $(srctree)/Makefile $$i; \
491 ifeq ($(config-targets),1)
492 # ===========================================================================
493 # *config targets only - make sure prerequisites are updated, and descend
494 # in scripts/kconfig to make the *config target
496 KBUILD_DEFCONFIG := sandbox_defconfig
497 export KBUILD_DEFCONFIG KBUILD_KCONFIG
499 config: scripts_basic outputmakefile FORCE
500 $(Q)$(MAKE) $(build)=scripts/kconfig $@
502 %config: scripts_basic outputmakefile FORCE
503 $(Q)$(MAKE) $(build)=scripts/kconfig $@
506 # ===========================================================================
507 # Build targets only - this includes vmlinux, arch specific targets, clean
508 # targets and others. In general all targets except *config targets.
510 # Additional helpers built in scripts/
511 # Carefully list dependencies so we do not try to build scripts twice
514 scripts: scripts_basic include/config/auto.conf
515 $(Q)$(MAKE) $(build)=$(@)
517 ifeq ($(dot-config),1)
519 -include include/config/auto.conf
521 # Read in dependencies to all Kconfig* files, make sure to run
522 # oldconfig if changes are detected.
523 -include include/config/auto.conf.cmd
525 # To avoid any implicit rule to kick in, define an empty command
526 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
528 # If .config is newer than include/config/auto.conf, someone tinkered
529 # with it and forgot to run make oldconfig.
530 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
531 # we execute the config step to be sure to catch updated Kconfig files
532 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
533 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
534 @# If the following part fails, include/config/auto.conf should be
535 @# deleted so "make silentoldconfig" will be re-run on the next build.
536 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
537 { rm -f include/config/auto.conf; false; }
538 @# include/config.h has been updated after "make silentoldconfig".
539 @# We need to touch include/config/auto.conf so it gets newer
540 @# than include/config.h.
541 @# Otherwise, 'make silentoldconfig' would be invoked twice.
542 $(Q)touch include/config/auto.conf
544 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
545 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
547 -include include/autoconf.mk
548 -include include/autoconf.mk.dep
550 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
551 # is up-to-date. When we switch to a different board configuration, old CONFIG
552 # macros are still remaining in include/config/auto.conf. Without the following
553 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
554 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
555 ifneq ($(wildcard include/config/auto.conf),)
556 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
557 include/config/auto.conf)
558 ifeq ($(autoconf_is_old),)
560 include arch/$(ARCH)/Makefile
565 # These are set by the arch-specific config.mk. Make sure they are exported
566 # so they can be used when building an EFI application.
567 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
568 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
569 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
570 export CFLAGS_EFI # Compiler flags to add when building EFI app
571 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
572 export EFI_TARGET # binutils target if EFI is natively supported
574 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
575 # that (or fail if absent). Otherwise, search for a linker script in a
579 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
580 ifdef CONFIG_SYS_LDSCRIPT
581 # need to strip off double quotes
582 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
586 # If there is no specified link script, we look in a number of places for it
588 ifeq ($(wildcard $(LDSCRIPT)),)
589 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
591 ifeq ($(wildcard $(LDSCRIPT)),)
592 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
594 ifeq ($(wildcard $(LDSCRIPT)),)
595 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
600 # Dummy target needed, because used as prerequisite
601 include/config/auto.conf: ;
602 endif # $(dot-config)
605 # Xtensa linker script cannot be preprocessed with -ansi because of
606 # preprocessor operations on strings that don't make C identifiers.
608 ifeq ($(CONFIG_XTENSA),)
612 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
618 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
619 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
621 # change __FILE__ to the relative path from the srctree
622 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
625 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
626 # option to the assembler.
629 # Report stack usage if supported
630 # ARC tools based on GCC 7.1 has an issue with stack usage
631 # with naked functions, see commit message for more details
633 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
634 KBUILD_CFLAGS += -fstack-usage
638 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
639 ifeq ($(cc-name),clang)
640 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
641 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
642 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
643 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
644 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
647 # turn jbsr into jsr for m68k
649 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
650 KBUILD_AFLAGS += -Wa,-gstabs,-S
654 # Prohibit date/time macros, which would make the build non-deterministic
655 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
657 include scripts/Makefile.extrawarn
659 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
660 KBUILD_CPPFLAGS += $(KCPPFLAGS)
661 KBUILD_AFLAGS += $(KAFLAGS)
662 KBUILD_CFLAGS += $(KCFLAGS)
664 # Use UBOOTINCLUDE when you must reference the include/ directory.
665 # Needed to be compatible with the O= option
668 $(if $(KBUILD_SRC), -I$(srctree)/include) \
669 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
670 $(if $(CONFIG_HAS_THUMB2),, \
671 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
672 -I$(srctree)/arch/$(ARCH)/include \
673 -include $(srctree)/include/linux/kconfig.h
675 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
676 CHECKFLAGS += $(NOSTDINC_FLAGS)
679 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
681 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
683 #########################################################################
684 # U-Boot objects....order is important (i.e. start must be first)
686 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
689 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
690 libs-$(CONFIG_OF_EMBED) += dts/
695 libs-y += drivers/dma/
696 libs-y += drivers/gpio/
697 libs-y += drivers/i2c/
698 libs-y += drivers/mtd/
699 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
700 libs-y += drivers/mtd/onenand/
701 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
702 libs-y += drivers/mtd/spi/
703 libs-y += drivers/net/
704 libs-y += drivers/net/phy/
705 libs-y += drivers/power/ \
706 drivers/power/domain/ \
707 drivers/power/fuel_gauge/ \
709 drivers/power/pmic/ \
710 drivers/power/battery/ \
711 drivers/power/regulator/
712 libs-y += drivers/spi/
713 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
714 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
715 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
716 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
717 libs-y += drivers/serial/
718 libs-y += drivers/usb/dwc3/
719 libs-y += drivers/usb/common/
720 libs-y += drivers/usb/emul/
721 libs-y += drivers/usb/eth/
722 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
723 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
724 libs-y += drivers/usb/host/
725 libs-y += drivers/usb/musb/
726 libs-y += drivers/usb/musb-new/
727 libs-y += drivers/usb/phy/
728 libs-y += drivers/usb/ulpi/
732 libs-$(CONFIG_API) += api/
733 libs-$(CONFIG_HAS_POST) += post/
734 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
735 libs-$(CONFIG_UT_ENV) += test/env/
736 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
738 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
740 libs-y := $(sort $(libs-y))
742 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
744 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
746 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
748 u-boot-init := $(head-y)
749 u-boot-main := $(libs-y)
753 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
754 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
756 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
758 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
760 ifdef CONFIG_CC_COVERAGE
761 KBUILD_CFLAGS += --coverage
762 PLATFORM_LIBGCC += -lgcov
766 export PLATFORM_LIBGCC
768 # Special flags for CPP when processing the linker script.
769 # Pass the version down so we can handle backwards compatibility
772 -include $(srctree)/include/u-boot/u-boot.lds.h \
774 $(shell $(LD) --version | \
775 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
777 #########################################################################
778 #########################################################################
780 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
782 @actual=`wc -c $@ | awk '{print $$1}'`; \
783 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
784 if test $$actual -gt $$limit; then \
785 echo "$@ exceeds file size limit:" >&2 ; \
786 echo " limit: $$limit bytes" >&2 ; \
787 echo " actual: $$actual bytes" >&2 ; \
788 echo " excess: $$((actual - limit)) bytes" >&2; \
795 # Statically apply RELA-style relocations (currently arm64 only)
796 # This is useful for arm64 where static relocation needs to be performed on
797 # the raw binary, but certain simulators only accept an ELF file (but don't
798 # do the relocation).
799 ifneq ($(CONFIG_STATIC_RELA),)
800 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
802 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
803 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
804 tools/relocate-rela $(2) $(3) $$start $$end
809 # Always append ALL so that arch config.mk's can add custom ones
810 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
812 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
813 ifeq ($(CONFIG_SPL_FSL_PBL),y)
814 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
816 ifneq ($(CONFIG_SECURE_BOOT), y)
817 # For Secure Boot The Image needs to be signed and Header must also
818 # be included. So The image has to be built explicitly
819 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
822 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
823 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
824 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
826 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
827 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
829 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
832 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
833 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
834 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
835 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
837 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
838 ifneq ($(CONFIG_SPL_TARGET),)
839 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
841 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
842 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
843 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
845 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
846 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
849 # Build a combined spl + u-boot image for sunxi
850 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
851 ALL-y += u-boot-sunxi-with-spl.bin
854 # enable combined SPL/u-boot/dtb rules for tegra
855 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
856 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
857 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
860 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
862 # Add optional build target if defined in board/cpu/soc headers
863 ifneq ($(CONFIG_BUILD_TARGET),)
864 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
867 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
868 ALL-y += init_sp_bss_offset_check
871 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
872 ALL-y += u-boot-with-dtb.bin
875 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
877 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
878 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
880 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
881 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
884 # Normally we fill empty space with 0xff
885 quiet_cmd_objcopy = OBJCOPY $@
886 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
887 $(OBJCOPYFLAGS_$(@F)) $< $@
889 # Provide a version which does not do this, for use by EFI
890 quiet_cmd_zobjcopy = OBJCOPY $@
891 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
893 quiet_cmd_efipayload = OBJCOPY $@
894 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
896 MKIMAGEOUTPUT ?= /dev/null
898 quiet_cmd_mkimage = MKIMAGE $@
899 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
900 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
902 quiet_cmd_mkfitimage = MKIMAGE $@
903 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
904 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
906 quiet_cmd_cat = CAT $@
907 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
909 append = cat $(filter-out $< $(PHONY), $^) >> $@
911 quiet_cmd_pad_cat = CAT $@
912 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
916 quiet_cmd_cfgcheck = CFGCHK $2
917 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
918 $(srctree)/scripts/config_whitelist.txt $(srctree)
921 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
922 @echo >&2 "===================== WARNING ======================"
923 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
924 @echo >&2 "(possibly in a subsequent patch in your series)"
925 @echo >&2 "before sending patches to the mailing list."
926 @echo >&2 "===================================================="
928 ifeq ($(CONFIG_MMC),y)
929 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
930 @echo >&2 "===================== WARNING ======================"
931 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
932 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
933 @echo >&2 "Failure to update by the deadline may result in board removal."
934 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
935 @echo >&2 "===================================================="
938 ifeq ($(CONFIG_USB),y)
939 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
940 @echo >&2 "===================== WARNING ======================"
941 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
942 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
943 @echo >&2 "Failure to update by the deadline may result in board removal."
944 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
945 @echo >&2 "===================================================="
948 ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y)
949 ifneq ($(CONFIG_DM_SCSI),y)
950 @echo >&2 "===================== WARNING ======================"
951 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update"
952 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
953 @echo >&2 "Failure to update by the deadline may result in board removal."
954 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
955 @echo >&2 "===================================================="
958 ifeq ($(CONFIG_PCI),y)
959 ifneq ($(CONFIG_DM_PCI),y)
960 @echo >&2 "===================== WARNING ======================"
961 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
962 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
963 @echo >&2 "Failure to update by the deadline may result in board removal."
964 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
965 @echo >&2 "===================================================="
968 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
969 ifneq ($(CONFIG_DM_VIDEO),y)
970 @echo >&2 "===================== WARNING ======================"
971 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
972 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
973 @echo >&2 "Failure to update by the deadline may result in board removal."
974 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
975 @echo >&2 "===================================================="
978 ifeq ($(CONFIG_OF_EMBED),y)
979 @echo >&2 "===================== WARNING ======================"
980 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
981 @echo >&2 "be used for debugging purposes. Please use"
982 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
983 @echo >&2 "See doc/README.fdt-control for more info."
984 @echo >&2 "===================================================="
986 ifeq ($(CONFIG_SPI),y)
987 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
988 @echo >&2 "===================== WARNING ======================"
989 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
990 @echo >&2 "the board before v2019.04 for no dm conversion"
991 @echo >&2 "and v2019.07 for partially dm converted drivers."
992 @echo >&2 "Failure to update can lead to driver/board removal"
993 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
994 @echo >&2 "===================================================="
997 ifeq ($(CONFIG_SPI_FLASH),y)
998 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
999 @echo >&2 "===================== WARNING ======================"
1000 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1001 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1002 @echo >&2 "Failure to update by the deadline may result in board removal."
1003 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1004 @echo >&2 "===================================================="
1007 @# Check that this build does not use CONFIG options that we do not
1008 @# know about unless they are in Kconfig. All the existing CONFIG
1009 @# options are whitelisted, so new ones should not be added.
1010 $(call cmd,cfgcheck,u-boot.cfg)
1016 $(Q)$(MAKE) $(build)=dts dtbs
1018 quiet_cmd_copy = COPY $@
1021 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1023 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1024 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1025 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1026 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1028 FINAL_DTB_CONTAINER = fit-dtb.blob
1031 fit-dtb.blob.gz: fit-dtb.blob
1034 fit-dtb.blob.lzo: fit-dtb.blob
1037 fit-dtb.blob: dts/dt.dtb FORCE
1038 $(call if_changed,mkimage)
1040 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1042 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1044 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1045 $(call if_changed,cat)
1047 u-boot.bin: u-boot-fit-dtb.bin FORCE
1048 $(call if_changed,copy)
1049 else ifeq ($(CONFIG_OF_SEPARATE),y)
1050 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1051 $(call if_changed,cat)
1053 u-boot.bin: u-boot-dtb.bin FORCE
1054 $(call if_changed,copy)
1056 u-boot.bin: u-boot-nodtb.bin FORCE
1057 $(call if_changed,copy)
1061 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1064 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1066 quiet_cmd_copy = COPY $@
1069 u-boot.dtb: dts/dt.dtb
1072 OBJCOPYFLAGS_u-boot.hex := -O ihex
1074 OBJCOPYFLAGS_u-boot.srec := -O srec
1076 u-boot.hex u-boot.srec: u-boot FORCE
1077 $(call if_changed,objcopy)
1079 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1081 u-boot-elf.srec: u-boot.elf FORCE
1082 $(call if_changed,objcopy)
1084 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1086 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1087 $(call if_changed,objcopy)
1089 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1090 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1091 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1093 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1095 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1096 $(call if_changed,objcopy)
1098 binary_size_check: u-boot-nodtb.bin FORCE
1099 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1100 map_size=$(shell cat u-boot.map | \
1101 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1104 if [ "" != "$$map_size" ]; then \
1105 if test $$map_size -ne $$file_size; then \
1106 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1107 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1112 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1113 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1114 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1116 subtract_sys_malloc_f_len = true
1118 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1119 # so low that the DTB could probably use 90%+ of the available space, for
1120 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1121 # safe for now and tweak this later if space becomes tight.
1122 # A rejected alternative would be to check that some absolute minimum stack
1123 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1124 # deliberately build-specific, to take account of build-to-build stack usage
1125 # differences due to different feature sets, there is no common absolute value
1127 init_sp_bss_offset_check: u-boot.dtb FORCE
1128 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1129 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1130 $(subtract_sys_malloc_f_len) ; \
1131 quarter_space=$$(($${space} / 4)) ; \
1132 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1133 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1134 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1139 u-boot-nodtb.bin: u-boot FORCE
1140 $(call if_changed,objcopy)
1141 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1146 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1150 # ---------------------------------------------------------------------------
1151 # Use 'make BINMAN_DEBUG=1' to enable debugging
1152 quiet_cmd_binman = BINMAN $@
1153 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1154 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1155 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1157 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1159 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1161 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1162 $(call if_changed,objcopy)
1165 # U-Boot entry point, needed for booting of full-blown U-Boot
1166 # from the SPL U-Boot version.
1168 ifndef CONFIG_SYS_UBOOT_START
1169 CONFIG_SYS_UBOOT_START := 0
1172 # Boards with more complex image requirments can provide an .its source file
1173 # or a generator script
1174 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1175 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1177 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1178 U_BOOT_ITS := u-boot.its
1179 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1180 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1182 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1183 U_BOOT_ITS_DEPS += u-boot
1185 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1186 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1187 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1191 ifdef CONFIG_SPL_LOAD_FIT
1192 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1193 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1194 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1195 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1197 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1198 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1199 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1200 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1201 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1202 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1203 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1204 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1207 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1209 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1210 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1212 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1213 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1214 $(if $(KEYDIR),-k $(KEYDIR))
1216 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1217 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1219 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1220 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1221 $(call if_changed,mkimage)
1224 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1225 MKIMAGEFLAGS_u-boot.itb =
1227 MKIMAGEFLAGS_u-boot.itb = -E
1230 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1231 $(call if_changed,mkfitimage)
1234 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1235 $(call if_changed,mkimage)
1237 u-boot.sha1: u-boot.bin
1238 tools/ubsha1 u-boot.bin
1241 $(OBJDUMP) -d $< > $@
1243 ifneq ($(CONFIG_SPL_PAYLOAD),)
1244 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1246 SPL_PAYLOAD := u-boot.bin
1249 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1250 --pad-to=$(CONFIG_SPL_PAD_TO)
1251 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1252 $(call if_changed,pad_cat)
1254 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1255 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1257 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1258 $(call if_changed,mkimage)
1260 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1262 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1263 $(call if_changed,objcopy)
1265 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1267 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1268 $(call if_changed,objcopy)
1270 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1271 $(call if_changed,cat)
1273 CLEAN_FILES += lpc32xx-*
1276 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1277 --pad-to=$(CONFIG_TPL_PAD_TO)
1278 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1279 $(call if_changed,pad_cat)
1281 SPL: spl/u-boot-spl.bin FORCE
1282 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1284 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1285 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1286 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1289 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1290 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1292 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1294 u-boot.ubl: u-boot-with-spl.bin FORCE
1295 $(call if_changed,mkimage)
1297 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1298 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1299 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1300 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1301 $(call if_changed,mkimage)
1303 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1304 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1305 $(call if_changed,pad_cat)
1307 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1308 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1309 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1310 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1312 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1313 # Both images are created using mkimage (crc etc), so that the ROM
1314 # bootloader can check its integrity. Padding needs to be done to the
1315 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1316 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1317 # The resulting image containing both U-Boot images is called u-boot.spr
1318 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1319 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1320 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1321 $(call if_changed,mkimage)
1323 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1325 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1326 $(call if_changed,pad_cat)
1328 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1329 quiet_cmd_socboot = SOCBOOT $@
1330 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1331 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1332 u-boot.img > $@ || rm -f $@
1333 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1334 $(call if_changed,socboot)
1337 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1338 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1339 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1340 $(call if_changed,binman)
1342 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1343 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1344 u-boot-br.bin: u-boot FORCE
1345 $(call if_changed,objcopy)
1349 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1350 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1351 # the middle. This is handled by binman based on an image description in the
1352 # board's device tree.
1353 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1354 rom: u-boot.rom FORCE
1356 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1357 $(call if_changed,copy)
1359 quiet_cmd_ldr = LD $@
1360 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1361 $(filter-out FORCE,$^) -o $@
1363 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1364 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1365 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1366 $(call if_changed,binman)
1368 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1369 u-boot-x86-16bit.bin: u-boot FORCE
1370 $(call if_changed,objcopy)
1373 ifneq ($(CONFIG_ARCH_SUNXI),)
1374 ifeq ($(CONFIG_ARM64),)
1375 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1376 $(call if_changed,binman)
1378 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1379 $(call if_changed,cat)
1383 ifneq ($(CONFIG_TEGRA),)
1384 ifneq ($(CONFIG_BINMAN),)
1385 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1386 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1387 spl/%-spl %.bin FORCE
1388 $(call if_changed,binman)
1390 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1391 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1392 $(call if_changed,pad_cat)
1394 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1395 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1396 $(call if_changed,pad_cat)
1398 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1399 $(call if_changed,copy)
1403 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1404 u-boot-app.efi: u-boot FORCE
1405 $(call if_changed,zobjcopy)
1407 u-boot.bin.o: u-boot.bin FORCE
1408 $(call if_changed,efipayload)
1410 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1411 $(call if_changed_dep,cpp_lds)
1413 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1414 quiet_cmd_u-boot_payload ?= LD $@
1415 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1416 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1417 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1418 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1420 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1421 $(call if_changed,u-boot_payload)
1423 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1424 u-boot-payload.efi: u-boot-payload FORCE
1425 $(call if_changed,zobjcopy)
1427 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1428 $(call if_changed,cat)
1430 #Add a target to create boot binary having SPL binary in PBI format
1431 #concatenated with u-boot binary. It is need by PowerPC SoC having
1432 #internal SRAM <= 512KB.
1433 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1434 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1435 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1437 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1438 $(call if_changed,mkimage)
1441 UBOOT_BINLOAD := u-boot.img
1443 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1444 UBOOT_BINLOAD := u-boot-with-dtb.bin
1446 UBOOT_BINLOAD := u-boot.bin
1450 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1453 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1454 $(call if_changed,pad_cat)
1456 # PPC4xx needs the SPL at the end of the image, since the reset vector
1457 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1458 # and need to introduce a new build target with the full blown U-Boot
1459 # at the start padded up to the start of the SPL image. And then concat
1460 # the SPL image to the end.
1462 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1463 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1464 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1465 $(call if_changed,pad_cat)
1467 # Create a new ELF from a raw binary file.
1468 ifndef PLATFORM_ELFENTRY
1469 PLATFORM_ELFENTRY = "_start"
1471 quiet_cmd_u-boot-elf ?= LD $@
1472 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1473 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1474 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1475 u-boot.elf: u-boot.bin
1476 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1477 $(call if_changed,u-boot-elf)
1479 # MediaTek's ARM-based u-boot needs a header to contains its load address
1480 # which is parsed by the BootROM.
1481 # If the SPL build is enabled, the header will be added to the spl binary,
1482 # and the spl binary and the u-boot.img will be combined into one file.
1483 # Otherwise the header will be added to the u-boot.bin directly.
1485 ifeq ($(CONFIG_SPL),y)
1486 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1488 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1489 $(call if_changed,binman)
1491 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1492 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1493 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1495 u-boot-mtk.bin: u-boot.bin FORCE
1496 $(call if_changed,mkimage)
1499 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1501 # Rule to link u-boot
1502 # May be overridden by arch/$(ARCH)/config.mk
1503 quiet_cmd_u-boot__ ?= LD $@
1504 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1505 -T u-boot.lds $(u-boot-init) \
1506 --start-group $(u-boot-main) --end-group \
1507 $(PLATFORM_LIBS) -Map u-boot.map; \
1508 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1510 quiet_cmd_smap = GEN common/system_map.o
1512 smap=`$(call SYSTEM_MAP,u-boot) | \
1513 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1514 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1515 -c $(srctree)/common/system_map.c -o common/system_map.o
1517 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1518 +$(call if_changed,u-boot__)
1519 ifeq ($(CONFIG_KALLSYMS),y)
1521 $(call cmd,u-boot__) common/system_map.o
1524 ifeq ($(CONFIG_RISCV),y)
1525 @tools/prelink-riscv $@ 0
1528 quiet_cmd_sym ?= SYM $@
1529 cmd_sym ?= $(OBJDUMP) -t $< > $@
1530 u-boot.sym: u-boot FORCE
1531 $(call if_changed,sym)
1533 # The actual objects are generated when descending,
1534 # make sure no implicit rule kicks in
1535 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1537 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1538 # Preset locale variables to speed up the build process. Limit locale
1539 # tweaks to this spot to avoid wrong language settings when running
1540 # make menuconfig etc.
1541 # Error messages still appears in the original language
1543 PHONY += $(u-boot-dirs)
1544 $(u-boot-dirs): prepare scripts
1545 $(Q)$(MAKE) $(build)=$@
1548 # The "tools" are needed early
1549 $(filter-out tools, $(u-boot-dirs)): tools
1550 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1551 # is "yes"), so compile examples after U-Boot is compiled.
1552 examples: $(filter-out examples, $(u-boot-dirs))
1554 define filechk_uboot.release
1555 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1558 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1559 include/config/uboot.release: include/config/auto.conf FORCE
1560 $(call filechk,uboot.release)
1563 # Things we need to do before we recursively start building the kernel
1564 # or the modules are listed in "prepare".
1565 # A multi level approach is used. prepareN is processed before prepareN-1.
1566 # archprepare is used in arch Makefiles and when processed asm symlink,
1567 # version.h and scripts_basic is processed / created.
1569 # Listed in dependency order
1570 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1572 # prepare3 is used to check if we are building in a separate output directory,
1574 # 1) Check that make has not been executed in the kernel src $(srctree)
1575 prepare3: include/config/uboot.release
1576 ifneq ($(KBUILD_SRC),)
1577 @$(kecho) ' Using $(srctree) as source for U-Boot'
1578 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1579 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1580 echo >&2 " in the '$(srctree)' directory.";\
1585 # prepare2 creates a makefile if using a separate output directory
1586 prepare2: prepare3 outputmakefile cfg
1588 prepare1: prepare2 $(version_h) $(timestamp_h) \
1589 include/config/auto.conf
1590 ifeq ($(wildcard $(LDSCRIPT)),)
1591 @echo >&2 " Could not find linker script."
1595 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1596 prepare1: $(defaultenv_h)
1599 archprepare: prepare1 scripts_basic
1601 prepare0: archprepare FORCE
1602 $(Q)$(MAKE) $(build)=.
1604 # All the preparing..
1607 # Generate some files
1608 # ---------------------------------------------------------------------------
1610 define filechk_version.h
1611 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1612 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1613 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1614 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1617 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1618 # The BSD date on the other hand behaves different and would produce errors
1619 # with the misused '-d' switch. Respect that and search a working date with
1620 # well known pre- and suffixes for the GNU variant of date.
1621 define filechk_timestamp.h
1622 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1623 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1625 for date in gdate date.gnu date; do \
1626 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1628 if test -n "$${DATE}"; then \
1629 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1630 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1631 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1632 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1633 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1638 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1639 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1640 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1641 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1642 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1646 define filechk_defaultenv.h
1650 sed -e 's/\\\x0/\n/' | \
1651 xxd -i ; echo ", 0x00" ; )
1654 $(version_h): include/config/uboot.release FORCE
1655 $(call filechk,version.h)
1657 $(timestamp_h): $(srctree)/Makefile FORCE
1658 $(call filechk,timestamp.h)
1660 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1661 $(call filechk,defaultenv.h)
1663 # ---------------------------------------------------------------------------
1664 quiet_cmd_cpp_lds = LDS $@
1665 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1666 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1668 u-boot.lds: $(LDSCRIPT) prepare FORCE
1669 $(call if_changed_dep,cpp_lds)
1671 spl/u-boot-spl.bin: spl/u-boot-spl
1673 spl/u-boot-spl: tools prepare \
1674 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1675 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1676 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1678 spl/sunxi-spl.bin: spl/u-boot-spl
1681 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1684 spl/u-boot-spl.sfp: spl/u-boot-spl
1687 spl/boot.bin: spl/u-boot-spl
1690 tpl/u-boot-tpl.bin: tools prepare \
1691 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1692 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1694 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1700 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1701 -name '*.[chS]' -print`
1705 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1706 -name '*.[chS]' -print`
1708 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1714 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1717 @$(call SYSTEM_MAP,$<) > $@
1719 #########################################################################
1721 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1722 # R_AARCH64_RELATIVE (64-bit).
1723 checkarmreloc: u-boot
1724 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1725 grep R_A | sort -u`"; \
1726 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1727 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1728 echo "$< contains unexpected relocations: $$RELOC"; \
1732 envtools: scripts_basic $(version_h) $(timestamp_h)
1733 $(Q)$(MAKE) $(build)=tools/env
1735 tools-only: scripts_basic $(version_h) $(timestamp_h)
1736 $(Q)$(MAKE) $(build)=tools
1738 tools-all: export HOST_TOOLS_ALL=y
1739 tools-all: envtools tools ;
1741 cross_tools: export CROSS_BUILD_TOOLS=y
1742 cross_tools: tools ;
1746 git log --no-merges U-Boot-1_1_5.. | \
1747 unexpand -a | sed -e 's/\s\s*$$//' > $@
1749 #########################################################################
1752 # Cleaning is done on three levels.
1753 # make clean Delete most generated files
1754 # Leave enough to build external modules
1755 # make mrproper Delete the current configuration, and all generated files
1756 # make distclean Remove editor backup files, patch leftover files and the like
1758 # Directories & files removed with 'make clean'
1759 CLEAN_DIRS += $(MODVERDIR) \
1760 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1761 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1763 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1764 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1766 # Directories & files removed with 'make mrproper'
1767 MRPROPER_DIRS += include/config include/generated spl tpl \
1769 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1770 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1771 drivers/video/fonts/*.S
1773 # clean - Delete most, but leave enough to build external modules
1775 clean: rm-dirs := $(CLEAN_DIRS)
1776 clean: rm-files := $(CLEAN_FILES)
1778 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1780 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1782 PHONY += $(clean-dirs) clean archclean
1784 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1786 clean: $(clean-dirs)
1789 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1790 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1791 -o -name '*.ko.*' -o -name '*.su' \
1792 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1793 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1794 -o -name '*.symtypes' -o -name 'modules.order' \
1795 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1796 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1797 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1798 -type f -print | xargs rm -f
1800 # mrproper - Delete all generated files, including .config
1802 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1803 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1804 mrproper-dirs := $(addprefix _mrproper_,scripts)
1806 PHONY += $(mrproper-dirs) mrproper archmrproper
1808 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1810 mrproper: clean $(mrproper-dirs)
1813 @rm -f arch/*/include/asm/arch
1820 @find $(srctree) $(RCS_FIND_IGNORE) \
1821 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1822 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1823 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1824 -o -name '*.pyc' \) \
1825 -type f -print | xargs rm -f
1826 @rm -f boards.cfg CHANGELOG
1829 F=`basename $(srctree)` ; cd .. ; \
1830 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1833 @echo 'Cleaning targets:'
1834 @echo ' clean - Remove most generated files but keep the config'
1835 @echo ' mrproper - Remove all generated files + config + various backup files'
1836 @echo ' distclean - mrproper + remove editor backup and patch files'
1838 @echo 'Configuration targets:'
1839 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1841 @echo 'Test targets:'
1843 @echo ' check - Run all automated tests that use sandbox'
1844 @echo ' qcheck - Run quick automated tests that use sandbox'
1846 @echo 'Other generic targets:'
1847 @echo ' all - Build all necessary images depending on configuration'
1848 @echo ' tests - Build U-Boot for sandbox and run tests'
1849 @echo '* u-boot - Build the bare u-boot'
1850 @echo ' dir/ - Build all files in dir and below'
1851 @echo ' dir/file.[oisS] - Build specified target only'
1852 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1853 @echo ' (requires a recent binutils and recent build (System.map))'
1854 @echo ' tags/ctags - Generate ctags file for editors'
1855 @echo ' etags - Generate etags file for editors'
1856 @echo ' cscope - Generate cscope index'
1857 @echo ' ubootrelease - Output the release version string (use with make -s)'
1858 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1859 @echo " cfg - Don't build, just create the .cfg files"
1860 @echo " envtools - Build only the target-side environment tools"
1862 @echo 'Static analysers'
1863 @echo ' checkstack - Generate a list of stack hogs'
1864 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1866 @echo 'Documentation targets:'
1867 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1869 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1870 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1871 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1872 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1873 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1874 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1875 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1876 @echo ' 1: warnings which may be relevant and do not occur too often'
1877 @echo ' 2: warnings which occur quite often but may still be relevant'
1878 @echo ' 3: more obscure warnings, can most likely be ignored'
1879 @echo ' Multiple levels can be combined with W=12 or W=123'
1881 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1882 @echo 'For further info see the ./README file'
1888 $(srctree)/test/run quick
1890 # Documentation targets
1891 # ---------------------------------------------------------------------------
1892 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1893 linkcheckdocs dochelp refcheckdocs
1894 PHONY += $(DOC_TARGETS)
1895 $(DOC_TARGETS): scripts_basic FORCE
1896 $(Q)$(MAKE) $(build)=Documentation $@
1898 endif #ifeq ($(config-targets),1)
1899 endif #ifeq ($(mixed-targets),1)
1901 PHONY += checkstack ubootrelease ubootversion
1904 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1905 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1908 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1911 @echo $(UBOOTVERSION)
1914 # ---------------------------------------------------------------------------
1915 # Single targets are compatible with:
1916 # - build with mixed source and output
1917 # - build with separate output dir 'make O=...'
1918 # - external modules
1920 # target-dir => where to store outputfile
1921 # build-dir => directory in kernel source tree to use
1923 ifeq ($(KBUILD_EXTMOD),)
1924 build-dir = $(patsubst %/,%,$(dir $@))
1925 target-dir = $(dir $@)
1927 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1928 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1929 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1932 %.s: %.c prepare scripts FORCE
1933 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1934 %.i: %.c prepare scripts FORCE
1935 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1936 %.o: %.c prepare scripts FORCE
1937 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1938 %.lst: %.c prepare scripts FORCE
1939 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1940 %.s: %.S prepare scripts FORCE
1941 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1942 %.o: %.S prepare scripts FORCE
1943 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1944 %.symtypes: %.c prepare scripts FORCE
1945 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1948 /: prepare scripts FORCE
1950 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1951 $(build)=$(build-dir)
1952 %/: prepare scripts FORCE
1954 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1955 $(build)=$(build-dir)
1956 %.ko: prepare scripts FORCE
1958 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1959 $(build)=$(build-dir) $(@:.ko=.o)
1960 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1962 # Consistency checks
1963 # ---------------------------------------------------------------------------
1968 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1970 # FIXME Should go into a make.lib or something
1971 # ===========================================================================
1973 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1974 cmd_rmdirs = rm -rf $(rm-dirs)
1976 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1977 cmd_rmfiles = rm -f $(rm-files)
1979 # read all saved command lines
1981 targets := $(wildcard $(sort $(targets)))
1982 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1984 ifneq ($(cmd_files),)
1985 $(cmd_files): ; # Do not try to update included dependency files
1986 include $(cmd_files)
1989 endif # skip-makefile
1994 # Declare the contents of the .PHONY variable as phony. We keep that
1995 # information in a variable so we can use it in if_changed and friends.