2 # SPDX-License-Identifier: GPL-2.0+
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.
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
20 MAKEFLAGS += -rR --include-dir=$(CURDIR)
22 # Avoid funny character set dependencies
26 export LC_COLLATE LC_NUMERIC
28 # Avoid interference with shell env settings
31 # We are using a recursive build, so we need to do a little thinking
32 # to get the ordering right.
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
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
48 # ---------------------------------------------------------------------------
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.
54 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
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.
62 # A simple variant is to prefix commands with $(Q) - that's useful
63 # for commands that shall be hidden in non-verbose mode.
67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
70 # To put more focus on warnings, be less verbose as default
71 # Use 'make V=1' to see the full commands
73 ifeq ("$(origin V)", "command line")
80 ifeq ($(KBUILD_VERBOSE),1)
88 # If the user is running make -s (silent mode), suppress echoing of
91 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
101 export quiet Q KBUILD_VERBOSE
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.
107 # Use "make O=dir/to/store/output/files/"
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/
115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
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)
120 ifeq ($(KBUILD_SRC),)
122 # OK, Make called in directory where kernel src resides
123 # Do we want to locate output files in a separate directory?
124 ifeq ("$(origin O)", "command line")
125 KBUILD_OUTPUT := $(O)
128 # That's our default target when none is given on the command line
132 # Cancel implicit rules on top Makefile
133 $(CURDIR)/Makefile Makefile: ;
135 ifneq ($(KBUILD_OUTPUT),)
136 # Invoke a second make in the output directory, passing relevant variables
137 # check that the output directory actually exists
138 saved-output := $(KBUILD_OUTPUT)
139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
141 $(if $(KBUILD_OUTPUT),, \
142 $(error failed to create output directory "$(saved-output)"))
144 PHONY += $(MAKECMDGOALS) sub-make
146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
153 # Leave processing to above invocation of make
155 endif # ifneq ($(KBUILD_OUTPUT),)
156 endif # ifeq ($(KBUILD_SRC),)
158 # We process the rest of the Makefile if this is the final invocation of make
159 ifeq ($(skip-makefile),)
161 # Do not print "Entering directory ...",
162 # but we want to display it when entering to the output directory
163 # so that IDEs/editors are able to understand relative filenames.
164 MAKEFLAGS += --no-print-directory
166 # Call a source code checker (by default, "sparse") as part of the
169 # Use 'make C=1' to enable checking of only re-compiled files.
170 # Use 'make C=2' to enable checking of *all* source files, regardless
171 # of whether they are re-compiled or not.
173 # See the file "Documentation/sparse.txt" for more details, including
174 # where to get the "sparse" utility.
176 ifeq ("$(origin C)", "command line")
177 KBUILD_CHECKSRC = $(C)
179 ifndef KBUILD_CHECKSRC
183 # Use make M=dir to specify directory of external module to build
184 # Old syntax make ... SUBDIRS=$PWD is still supported
185 # Setting the environment variable KBUILD_EXTMOD take precedence
187 KBUILD_EXTMOD ?= $(SUBDIRS)
190 ifeq ("$(origin M)", "command line")
191 KBUILD_EXTMOD := $(M)
194 # If building an external module we do not care about the all: rule
195 # but instead _all depend on modules
197 ifeq ($(KBUILD_EXTMOD),)
203 ifeq ($(KBUILD_SRC),)
204 # building in the source tree
207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208 # building in a subdirectory of the source tree
211 srctree := $(KBUILD_SRC)
218 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
220 export srctree objtree VPATH
222 # Make sure CDPATH settings don't interfere
225 #########################################################################
227 HOSTARCH := $(shell uname -m | \
229 -e s/sun4u/sparc64/ \
232 -e s/ppc64/powerpc/ \
234 -e s/macppc/powerpc/\
237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238 sed -e 's/\(cygwin\).*/cygwin/')
240 export HOSTARCH HOSTOS
242 #########################################################################
244 # set default to nothing for native builds
245 ifeq ($(HOSTARCH),$(ARCH))
249 KCONFIG_CONFIG ?= .config
250 export KCONFIG_CONFIG
252 # SHELL used by kbuild
253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254 else if [ -x /bin/bash ]; then echo /bin/bash; \
255 else echo sh; fi ; fi)
259 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260 $(if $(CONFIG_TOOLS_DEBUG),-g)
263 ifeq ($(HOSTOS),cygwin)
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.
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.
278 ifeq ($(HOSTOS),darwin)
279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
281 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
283 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
286 # Snow Leopards build environment has no longer restrictions as described above
287 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
288 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
289 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
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
294 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
297 # Decide whether to build built-in, modular, or both.
298 # Normally, just do built-in.
303 # If we have only "make modules", don't compile built-in objects.
304 # When we're building modules with modversions, we need to consider
305 # the built-in objects during the descend as well, in order to
306 # make sure the checksums are up to date before we record them.
308 ifeq ($(MAKECMDGOALS),modules)
309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
312 # If we have "make <whatever> modules", compile modules
313 # in addition to whatever we do anyway.
314 # Just "make" or "make all" shall build modules as well
316 # U-Boot does not need modules
317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318 # KBUILD_MODULES := 1
321 #ifeq ($(MAKECMDGOALS),)
322 # KBUILD_MODULES := 1
325 export KBUILD_MODULES KBUILD_BUILTIN
326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
328 # We need some generic definitions (do not try to remake the file).
329 scripts/Kbuild.include: ;
330 include scripts/Kbuild.include
332 # Make variables (CC, etc...)
334 AS = $(CROSS_COMPILE)as
336 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337 LD = $(CROSS_COMPILE)ld.bfd
339 LD = $(CROSS_COMPILE)ld
341 CC = $(CROSS_COMPILE)gcc
343 AR = $(CROSS_COMPILE)ar
344 NM = $(CROSS_COMPILE)nm
345 LDR = $(CROSS_COMPILE)ldr
346 STRIP = $(CROSS_COMPILE)strip
347 OBJCOPY = $(CROSS_COMPILE)objcopy
348 OBJDUMP = $(CROSS_COMPILE)objdump
352 DTC ?= $(objtree)/scripts/dtc/dtc
355 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
358 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
360 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
361 -Wno-format-security \
362 -fno-builtin -ffreestanding
363 KBUILD_CFLAGS += -fshort-wchar
364 KBUILD_AFLAGS := -D__ASSEMBLY__
366 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
367 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
368 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
370 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
371 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
372 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
373 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
374 export MAKE AWK PERL PYTHON
375 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
377 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
378 export KBUILD_CFLAGS KBUILD_AFLAGS
380 # When compiling out-of-tree modules, put MODVERDIR in the module
381 # tree rather than in the kernel tree. The kernel tree might
383 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
385 # Files to ignore in find ... statements
387 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
388 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
390 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
391 --exclude CVS --exclude .pc --exclude .hg --exclude .git
393 # ===========================================================================
394 # Rules shared between *config targets and build targets
396 # Basic helpers built in scripts/
397 PHONY += scripts_basic
399 $(Q)$(MAKE) $(build)=scripts/basic
400 $(Q)rm -f .tmp_quiet_recordmcount
402 # To avoid any implicit rule to kick in, define an empty command.
403 scripts/basic/%: scripts_basic ;
405 PHONY += outputmakefile
406 # outputmakefile generates a Makefile in the output directory, if using a
407 # separate output directory. This allows convenient use of make in the
410 ifneq ($(KBUILD_SRC),)
411 $(Q)ln -fsn $(srctree) source
412 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
413 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
416 # To make sure we do not include .config for any of the *config targets
417 # catch them early, and hand them over to scripts/kconfig/Makefile
418 # It is allowed to specify more targets when calling make, including
419 # mixing *config targets and build targets.
420 # For example 'make oldconfig all'.
421 # Detect when mixed targets is specified, and make a second invocation
422 # of make so .config is not included in this case either (for *config).
424 version_h := include/generated/version_autogenerated.h
425 timestamp_h := include/generated/timestamp_autogenerated.h
426 defaultenv_h := include/generated/defaultenv_autogenerated.h
428 no-dot-config-targets := clean clobber mrproper distclean \
429 help %docs check% coccicheck \
430 ubootversion backup tests
436 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
437 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
442 ifeq ($(KBUILD_EXTMOD),)
443 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
445 ifneq ($(words $(MAKECMDGOALS)),1)
451 ifeq ($(mixed-targets),1)
452 # ===========================================================================
453 # We're called with mixed targets (*config and build targets).
454 # Handle them one by one.
456 PHONY += $(MAKECMDGOALS) __build_one_by_one
458 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
463 for i in $(MAKECMDGOALS); do \
464 $(MAKE) -f $(srctree)/Makefile $$i; \
468 ifeq ($(config-targets),1)
469 # ===========================================================================
470 # *config targets only - make sure prerequisites are updated, and descend
471 # in scripts/kconfig to make the *config target
473 KBUILD_DEFCONFIG := sandbox_defconfig
474 export KBUILD_DEFCONFIG KBUILD_KCONFIG
476 config: scripts_basic outputmakefile FORCE
477 $(Q)$(MAKE) $(build)=scripts/kconfig $@
479 %config: scripts_basic outputmakefile FORCE
480 $(Q)$(MAKE) $(build)=scripts/kconfig $@
483 # ===========================================================================
484 # Build targets only - this includes vmlinux, arch specific targets, clean
485 # targets and others. In general all targets except *config targets.
487 # Additional helpers built in scripts/
488 # Carefully list dependencies so we do not try to build scripts twice
491 scripts: scripts_basic include/config/auto.conf
492 $(Q)$(MAKE) $(build)=$(@)
494 ifeq ($(dot-config),1)
496 -include include/config/auto.conf
498 # Read in dependencies to all Kconfig* files, make sure to run
499 # oldconfig if changes are detected.
500 -include include/config/auto.conf.cmd
502 # To avoid any implicit rule to kick in, define an empty command
503 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
505 # If .config is newer than include/config/auto.conf, someone tinkered
506 # with it and forgot to run make oldconfig.
507 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
508 # we execute the config step to be sure to catch updated Kconfig files
509 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
510 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
511 @# If the following part fails, include/config/auto.conf should be
512 @# deleted so "make silentoldconfig" will be re-run on the next build.
513 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
514 { rm -f include/config/auto.conf; false; }
515 @# include/config.h has been updated after "make silentoldconfig".
516 @# We need to touch include/config/auto.conf so it gets newer
517 @# than include/config.h.
518 @# Otherwise, 'make silentoldconfig' would be invoked twice.
519 $(Q)touch include/config/auto.conf
521 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
522 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
524 -include include/autoconf.mk
525 -include include/autoconf.mk.dep
527 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
528 # is up-to-date. When we switch to a different board configuration, old CONFIG
529 # macros are still remaining in include/config/auto.conf. Without the following
530 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
531 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
532 ifneq ($(wildcard include/config/auto.conf),)
533 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
534 include/config/auto.conf)
535 ifeq ($(autoconf_is_old),)
537 include arch/$(ARCH)/Makefile
542 # These are set by the arch-specific config.mk. Make sure they are exported
543 # so they can be used when building an EFI application.
544 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
545 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
546 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
547 export CFLAGS_EFI # Compiler flags to add when building EFI app
548 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
549 export EFI_TARGET # binutils target if EFI is natively supported
551 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
552 # that (or fail if absent). Otherwise, search for a linker script in a
556 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
557 ifdef CONFIG_SYS_LDSCRIPT
558 # need to strip off double quotes
559 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
563 # If there is no specified link script, we look in a number of places for it
565 ifeq ($(wildcard $(LDSCRIPT)),)
566 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
568 ifeq ($(wildcard $(LDSCRIPT)),)
569 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
571 ifeq ($(wildcard $(LDSCRIPT)),)
572 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
577 # Dummy target needed, because used as prerequisite
578 include/config/auto.conf: ;
579 endif # $(dot-config)
582 # Xtensa linker script cannot be preprocessed with -ansi because of
583 # preprocessor operations on strings that don't make C identifiers.
585 ifeq ($(CONFIG_XTENSA),)
589 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
595 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
596 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
599 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
600 # option to the assembler.
603 # Report stack usage if supported
604 # ARC tools based on GCC 7.1 has an issue with stack usage
605 # with naked functions, see commit message for more details
607 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
608 KBUILD_CFLAGS += -fstack-usage
612 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
613 ifeq ($(cc-name),clang)
614 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
615 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
616 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
617 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
618 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
621 # turn jbsr into jsr for m68k
623 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
624 KBUILD_AFLAGS += -Wa,-gstabs,-S
628 # Prohibit date/time macros, which would make the build non-deterministic
629 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
631 include scripts/Makefile.extrawarn
633 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
634 KBUILD_CPPFLAGS += $(KCPPFLAGS)
635 KBUILD_AFLAGS += $(KAFLAGS)
636 KBUILD_CFLAGS += $(KCFLAGS)
638 # Use UBOOTINCLUDE when you must reference the include/ directory.
639 # Needed to be compatible with the O= option
642 $(if $(KBUILD_SRC), -I$(srctree)/include) \
643 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
644 $(if $(CONFIG_HAS_THUMB2),, \
645 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
646 -I$(srctree)/arch/$(ARCH)/include \
647 -include $(srctree)/include/linux/kconfig.h
649 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
650 CHECKFLAGS += $(NOSTDINC_FLAGS)
653 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
655 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
657 #########################################################################
658 # U-Boot objects....order is important (i.e. start must be first)
660 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
663 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
664 libs-$(CONFIG_OF_EMBED) += dts/
669 libs-y += drivers/dma/
670 libs-y += drivers/gpio/
671 libs-y += drivers/i2c/
672 libs-y += drivers/mtd/
673 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
674 libs-y += drivers/mtd/onenand/
675 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
676 libs-y += drivers/mtd/spi/
677 libs-y += drivers/net/
678 libs-y += drivers/net/phy/
679 libs-y += drivers/pci/
680 libs-y += drivers/power/ \
681 drivers/power/domain/ \
682 drivers/power/fuel_gauge/ \
684 drivers/power/pmic/ \
685 drivers/power/battery/ \
686 drivers/power/regulator/
687 libs-y += drivers/spi/
688 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
689 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
690 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
691 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
692 libs-y += drivers/serial/
693 libs-y += drivers/usb/dwc3/
694 libs-y += drivers/usb/common/
695 libs-y += drivers/usb/emul/
696 libs-y += drivers/usb/eth/
697 libs-y += drivers/usb/gadget/
698 libs-y += drivers/usb/gadget/udc/
699 libs-y += drivers/usb/host/
700 libs-y += drivers/usb/musb/
701 libs-y += drivers/usb/musb-new/
702 libs-y += drivers/usb/phy/
703 libs-y += drivers/usb/ulpi/
707 libs-$(CONFIG_API) += api/
708 libs-$(CONFIG_HAS_POST) += post/
711 libs-$(CONFIG_UT_ENV) += test/env/
712 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
714 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
716 libs-y := $(sort $(libs-y))
718 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
720 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
722 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
724 u-boot-init := $(head-y)
725 u-boot-main := $(libs-y)
729 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
730 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
732 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
734 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
736 ifdef CONFIG_CC_COVERAGE
737 KBUILD_CFLAGS += --coverage
738 PLATFORM_LIBGCC += -lgcov
742 export PLATFORM_LIBGCC
744 # Special flags for CPP when processing the linker script.
745 # Pass the version down so we can handle backwards compatibility
748 -include $(srctree)/include/u-boot/u-boot.lds.h \
750 $(shell $(LD) --version | \
751 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
753 #########################################################################
754 #########################################################################
756 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
758 @actual=`wc -c $@ | awk '{print $$1}'`; \
759 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
760 if test $$actual -gt $$limit; then \
761 echo "$@ exceeds file size limit:" >&2 ; \
762 echo " limit: $$limit bytes" >&2 ; \
763 echo " actual: $$actual bytes" >&2 ; \
764 echo " excess: $$((actual - limit)) bytes" >&2; \
771 # Statically apply RELA-style relocations (currently arm64 only)
772 # This is useful for arm64 where static relocation needs to be performed on
773 # the raw binary, but certain simulators only accept an ELF file (but don't
774 # do the relocation).
775 ifneq ($(CONFIG_STATIC_RELA),)
776 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
778 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
779 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
780 tools/relocate-rela $(2) $(3) $$start $$end
785 # Always append ALL so that arch config.mk's can add custom ones
786 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
788 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
789 ifeq ($(CONFIG_SPL_FSL_PBL),y)
790 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
792 ifneq ($(CONFIG_SECURE_BOOT), y)
793 # For Secure Boot The Image needs to be signed and Header must also
794 # be included. So The image has to be built explicitly
795 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
798 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
799 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
800 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
802 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
803 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
805 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
808 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
809 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
810 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
811 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
813 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
814 ifneq ($(CONFIG_SPL_TARGET),)
815 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
817 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
818 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
819 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
821 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
822 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
825 # Build a combined spl + u-boot image for sunxi
826 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
827 ALL-y += u-boot-sunxi-with-spl.bin
830 # enable combined SPL/u-boot/dtb rules for tegra
831 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
832 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
833 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
836 # Add optional build target if defined in board/cpu/soc headers
837 ifneq ($(CONFIG_BUILD_TARGET),)
838 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
841 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
842 ALL-y += init_sp_bss_offset_check
845 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
847 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
848 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
850 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
851 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
854 # Normally we fill empty space with 0xff
855 quiet_cmd_objcopy = OBJCOPY $@
856 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
857 $(OBJCOPYFLAGS_$(@F)) $< $@
859 # Provide a version which does not do this, for use by EFI
860 quiet_cmd_zobjcopy = OBJCOPY $@
861 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
863 quiet_cmd_efipayload = OBJCOPY $@
864 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
866 MKIMAGEOUTPUT ?= /dev/null
868 quiet_cmd_mkimage = MKIMAGE $@
869 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
870 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
872 quiet_cmd_mkfitimage = MKIMAGE $@
873 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
874 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
876 quiet_cmd_cat = CAT $@
877 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
879 append = cat $(filter-out $< $(PHONY), $^) >> $@
881 quiet_cmd_pad_cat = CAT $@
882 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
886 quiet_cmd_cfgcheck = CFGCHK $2
887 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
888 $(srctree)/scripts/config_whitelist.txt $(srctree)
891 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
892 @echo "===================== WARNING ======================"
893 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
894 @echo "(possibly in a subsequent patch in your series)"
895 @echo "before sending patches to the mailing list."
896 @echo "===================================================="
898 @# Check that this build does not use CONFIG options that we do not
899 @# know about unless they are in Kconfig. All the existing CONFIG
900 @# options are whitelisted, so new ones should not be added.
901 $(call cmd,cfgcheck,u-boot.cfg)
907 $(Q)$(MAKE) $(build)=dts dtbs
909 quiet_cmd_copy = COPY $@
912 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
914 fit-dtb.blob: dts/dt.dtb FORCE
915 $(call if_changed,mkimage)
917 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
919 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
921 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
922 $(call if_changed,cat)
924 u-boot.bin: u-boot-fit-dtb.bin FORCE
925 $(call if_changed,copy)
926 else ifeq ($(CONFIG_OF_SEPARATE),y)
927 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
928 $(call if_changed,cat)
930 u-boot.bin: u-boot-dtb.bin FORCE
931 $(call if_changed,copy)
933 u-boot.bin: u-boot-nodtb.bin FORCE
934 $(call if_changed,copy)
938 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
941 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
943 quiet_cmd_copy = COPY $@
946 u-boot.dtb: dts/dt.dtb
949 OBJCOPYFLAGS_u-boot.hex := -O ihex
951 OBJCOPYFLAGS_u-boot.srec := -O srec
953 u-boot.hex u-boot.srec: u-boot FORCE
954 $(call if_changed,objcopy)
956 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
958 u-boot-elf.srec: u-boot.elf FORCE
959 $(call if_changed,objcopy)
961 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
963 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
964 $(call if_changed,objcopy)
966 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
967 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
969 binary_size_check: u-boot-nodtb.bin FORCE
970 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
971 map_size=$(shell cat u-boot.map | \
972 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
975 if [ "" != "$$map_size" ]; then \
976 if test $$map_size -ne $$file_size; then \
977 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
978 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
983 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
984 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
985 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
987 subtract_sys_malloc_f_len = true
989 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
990 # so low that the DTB could probably use 90%+ of the available space, for
991 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
992 # safe for now and tweak this later if space becomes tight.
993 # A rejected alternative would be to check that some absolute minimum stack
994 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
995 # deliberately build-specific, to take account of build-to-build stack usage
996 # differences due to different feature sets, there is no common absolute value
998 init_sp_bss_offset_check: u-boot.dtb FORCE
999 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1000 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1001 $(subtract_sys_malloc_f_len) ; \
1002 quarter_space=$$(($${space} / 4)) ; \
1003 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1004 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1005 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1010 u-boot-nodtb.bin: u-boot FORCE
1011 $(call if_changed,objcopy)
1012 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1017 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1021 # ---------------------------------------------------------------------------
1022 quiet_cmd_binman = BINMAN $@
1023 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1024 -I . -I $(srctree)/board/$(BOARDDIR) $<
1026 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1028 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1030 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1031 $(call if_changed,objcopy)
1034 # U-Boot entry point, needed for booting of full-blown U-Boot
1035 # from the SPL U-Boot version.
1037 ifndef CONFIG_SYS_UBOOT_START
1038 CONFIG_SYS_UBOOT_START := 0
1041 # Create a file containing the configuration options the image was built with
1042 quiet_cmd_cpp_cfg = CFG $@
1043 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1044 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1046 # Boards with more complex image requirments can provide an .its source file
1047 # or a generator script
1048 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1049 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1051 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1052 U_BOOT_ITS := u-boot.its
1053 $(U_BOOT_ITS): FORCE
1054 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1055 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1059 ifdef CONFIG_SPL_LOAD_FIT
1060 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1061 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1062 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1063 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1065 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1066 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1067 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1068 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1069 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1070 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1071 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1072 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1075 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1077 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1078 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1080 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1081 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1082 $(if $(KEYDIR),-k $(KEYDIR))
1084 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1085 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1087 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1088 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1089 $(call if_changed,mkimage)
1091 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1092 $(call if_changed,mkfitimage)
1095 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1096 $(call if_changed,mkimage)
1098 u-boot.sha1: u-boot.bin
1099 tools/ubsha1 u-boot.bin
1102 $(OBJDUMP) -d $< > $@
1105 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1107 SPL_PAYLOAD := u-boot.bin
1110 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1111 --pad-to=$(CONFIG_SPL_PAD_TO)
1112 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1113 $(call if_changed,pad_cat)
1115 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1117 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1118 $(call if_changed,mkimage)
1120 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1122 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1123 $(call if_changed,objcopy)
1125 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1127 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1128 $(call if_changed,objcopy)
1130 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1131 $(call if_changed,cat)
1133 CLEAN_FILES += lpc32xx-*
1135 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1136 --pad-to=$(CONFIG_TPL_PAD_TO)
1137 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1138 $(call if_changed,pad_cat)
1140 SPL: spl/u-boot-spl.bin FORCE
1141 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1143 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1144 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1146 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1148 u-boot.ubl: u-boot-with-spl.bin FORCE
1149 $(call if_changed,mkimage)
1151 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1152 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1153 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1154 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1155 $(call if_changed,mkimage)
1157 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1158 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1159 $(call if_changed,pad_cat)
1161 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1162 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1163 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1164 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1166 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1167 # Both images are created using mkimage (crc etc), so that the ROM
1168 # bootloader can check its integrity. Padding needs to be done to the
1169 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1170 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1171 # The resulting image containing both U-Boot images is called u-boot.spr
1172 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1173 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1174 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1175 $(call if_changed,mkimage)
1177 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1179 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1180 $(call if_changed,pad_cat)
1182 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1183 quiet_cmd_socboot = SOCBOOT $@
1184 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1185 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1186 u-boot.img > $@ || rm -f $@
1187 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1188 $(call if_changed,socboot)
1191 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1192 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1193 # the middle. This is handled by binman based on an image description in the
1194 # board's device tree.
1195 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1196 rom: u-boot.rom FORCE
1198 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1199 $(call if_changed,copy)
1201 quiet_cmd_ldr = LD $@
1202 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1203 $(filter-out FORCE,$^) -o $@
1205 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1206 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1207 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1208 $(call if_changed,binman)
1210 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1211 u-boot-x86-16bit.bin: u-boot FORCE
1212 $(call if_changed,objcopy)
1215 ifneq ($(CONFIG_ARCH_SUNXI),)
1216 ifeq ($(CONFIG_ARM64),)
1217 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1218 $(call if_changed,binman)
1220 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1221 $(call if_changed,cat)
1225 ifneq ($(CONFIG_TEGRA),)
1226 ifneq ($(CONFIG_BINMAN),)
1227 u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1228 spl/u-boot-spl u-boot.bin FORCE
1229 $(call if_changed,binman)
1231 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1232 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1233 $(call if_changed,pad_cat)
1235 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1236 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1237 $(call if_changed,pad_cat)
1239 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1240 $(call if_changed,copy)
1244 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1245 u-boot-app.efi: u-boot FORCE
1246 $(call if_changed,zobjcopy)
1248 u-boot.bin.o: u-boot.bin FORCE
1249 $(call if_changed,efipayload)
1251 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1252 $(call if_changed_dep,cpp_lds)
1254 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1255 quiet_cmd_u-boot_payload ?= LD $@
1256 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1257 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1258 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1259 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1261 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1262 $(call if_changed,u-boot_payload)
1264 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1265 u-boot-payload.efi: u-boot-payload FORCE
1266 $(call if_changed,zobjcopy)
1268 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1269 $(call if_changed,cat)
1271 #Add a target to create boot binary having SPL binary in PBI format
1272 #concatenated with u-boot binary. It is need by PowerPC SoC having
1273 #internal SRAM <= 512KB.
1274 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1275 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1276 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1278 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1279 $(call if_changed,mkimage)
1282 UBOOT_BINLOAD := u-boot.img
1284 UBOOT_BINLOAD := u-boot.bin
1287 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1290 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1291 $(call if_changed,pad_cat)
1293 # PPC4xx needs the SPL at the end of the image, since the reset vector
1294 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1295 # and need to introduce a new build target with the full blown U-Boot
1296 # at the start padded up to the start of the SPL image. And then concat
1297 # the SPL image to the end.
1299 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1300 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1301 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1302 $(call if_changed,pad_cat)
1304 # Create a new ELF from a raw binary file.
1305 ifndef PLATFORM_ELFENTRY
1306 PLATFORM_ELFENTRY = "_start"
1308 quiet_cmd_u-boot-elf ?= LD $@
1309 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1310 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1311 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1312 u-boot.elf: u-boot.bin
1313 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1314 $(call if_changed,u-boot-elf)
1316 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1318 # Rule to link u-boot
1319 # May be overridden by arch/$(ARCH)/config.mk
1320 quiet_cmd_u-boot__ ?= LD $@
1321 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1322 -T u-boot.lds $(u-boot-init) \
1323 --start-group $(u-boot-main) --end-group \
1324 $(PLATFORM_LIBS) -Map u-boot.map; \
1325 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1327 quiet_cmd_smap = GEN common/system_map.o
1329 smap=`$(call SYSTEM_MAP,u-boot) | \
1330 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1331 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1332 -c $(srctree)/common/system_map.c -o common/system_map.o
1334 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1335 +$(call if_changed,u-boot__)
1336 ifeq ($(CONFIG_KALLSYMS),y)
1338 $(call cmd,u-boot__) common/system_map.o
1341 ifeq ($(CONFIG_RISCV),y)
1342 @tools/prelink-riscv $@ 0
1345 quiet_cmd_sym ?= SYM $@
1346 cmd_sym ?= $(OBJDUMP) -t $< > $@
1347 u-boot.sym: u-boot FORCE
1348 $(call if_changed,sym)
1350 # The actual objects are generated when descending,
1351 # make sure no implicit rule kicks in
1352 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1354 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1355 # Preset locale variables to speed up the build process. Limit locale
1356 # tweaks to this spot to avoid wrong language settings when running
1357 # make menuconfig etc.
1358 # Error messages still appears in the original language
1360 PHONY += $(u-boot-dirs)
1361 $(u-boot-dirs): prepare scripts
1362 $(Q)$(MAKE) $(build)=$@
1365 # The "tools" are needed early
1366 $(filter-out tools, $(u-boot-dirs)): tools
1367 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1368 # is "yes"), so compile examples after U-Boot is compiled.
1369 examples: $(filter-out examples, $(u-boot-dirs))
1371 define filechk_uboot.release
1372 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1375 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1376 include/config/uboot.release: include/config/auto.conf FORCE
1377 $(call filechk,uboot.release)
1380 # Things we need to do before we recursively start building the kernel
1381 # or the modules are listed in "prepare".
1382 # A multi level approach is used. prepareN is processed before prepareN-1.
1383 # archprepare is used in arch Makefiles and when processed asm symlink,
1384 # version.h and scripts_basic is processed / created.
1386 # Listed in dependency order
1387 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1389 # prepare3 is used to check if we are building in a separate output directory,
1391 # 1) Check that make has not been executed in the kernel src $(srctree)
1392 prepare3: include/config/uboot.release
1393 ifneq ($(KBUILD_SRC),)
1394 @$(kecho) ' Using $(srctree) as source for U-Boot'
1395 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1396 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1397 echo >&2 " in the '$(srctree)' directory.";\
1402 # prepare2 creates a makefile if using a separate output directory
1403 prepare2: prepare3 outputmakefile
1405 prepare1: prepare2 $(version_h) $(timestamp_h) \
1406 include/config/auto.conf
1407 ifeq ($(wildcard $(LDSCRIPT)),)
1408 @echo >&2 " Could not find linker script."
1412 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1413 prepare1: $(defaultenv_h)
1416 archprepare: prepare1 scripts_basic
1418 prepare0: archprepare FORCE
1419 $(Q)$(MAKE) $(build)=.
1421 # All the preparing..
1424 # Generate some files
1425 # ---------------------------------------------------------------------------
1427 define filechk_version.h
1428 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1429 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1430 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1431 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1434 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1435 # The BSD date on the other hand behaves different and would produce errors
1436 # with the misused '-d' switch. Respect that and search a working date with
1437 # well known pre- and suffixes for the GNU variant of date.
1438 define filechk_timestamp.h
1439 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1440 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1442 for date in gdate date.gnu date; do \
1443 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1445 if test -n "$${DATE}"; then \
1446 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1447 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1448 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1449 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1450 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1455 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1456 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1457 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1458 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1459 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1463 define filechk_defaultenv.h
1467 sed -e 's/\\\x0/\n/' | \
1468 xxd -i ; echo ", 0x00" ; )
1471 $(version_h): include/config/uboot.release FORCE
1472 $(call filechk,version.h)
1474 $(timestamp_h): $(srctree)/Makefile FORCE
1475 $(call filechk,timestamp.h)
1477 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1478 $(call filechk,defaultenv.h)
1480 # ---------------------------------------------------------------------------
1481 quiet_cmd_cpp_lds = LDS $@
1482 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1483 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1485 u-boot.lds: $(LDSCRIPT) prepare FORCE
1486 $(call if_changed_dep,cpp_lds)
1488 spl/u-boot-spl.bin: spl/u-boot-spl
1490 spl/u-boot-spl: tools prepare \
1491 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1492 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1493 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1495 spl/sunxi-spl.bin: spl/u-boot-spl
1498 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1501 spl/u-boot-spl.sfp: spl/u-boot-spl
1504 spl/boot.bin: spl/u-boot-spl
1507 tpl/u-boot-tpl.bin: tools prepare \
1508 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1509 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1511 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1517 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1518 -name '*.[chS]' -print`
1522 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1523 -name '*.[chS]' -print`
1525 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1531 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1534 @$(call SYSTEM_MAP,$<) > $@
1536 #########################################################################
1538 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1539 # R_AARCH64_RELATIVE (64-bit).
1540 checkarmreloc: u-boot
1541 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1542 grep R_A | sort -u`"; \
1543 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1544 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1545 echo "$< contains unexpected relocations: $$RELOC"; \
1549 envtools: scripts_basic $(version_h) $(timestamp_h)
1550 $(Q)$(MAKE) $(build)=tools/env
1552 tools-only: scripts_basic $(version_h) $(timestamp_h)
1553 $(Q)$(MAKE) $(build)=tools
1555 tools-all: export HOST_TOOLS_ALL=y
1556 tools-all: envtools tools ;
1558 cross_tools: export CROSS_BUILD_TOOLS=y
1559 cross_tools: tools ;
1563 git log --no-merges U-Boot-1_1_5.. | \
1564 unexpand -a | sed -e 's/\s\s*$$//' > $@
1566 #########################################################################
1569 # Cleaning is done on three levels.
1570 # make clean Delete most generated files
1571 # Leave enough to build external modules
1572 # make mrproper Delete the current configuration, and all generated files
1573 # make distclean Remove editor backup files, patch leftover files and the like
1575 # Directories & files removed with 'make clean'
1576 CLEAN_DIRS += $(MODVERDIR) \
1577 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1578 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1580 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1581 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1583 # Directories & files removed with 'make mrproper'
1584 MRPROPER_DIRS += include/config include/generated spl tpl \
1586 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1587 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1589 # clean - Delete most, but leave enough to build external modules
1591 clean: rm-dirs := $(CLEAN_DIRS)
1592 clean: rm-files := $(CLEAN_FILES)
1594 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1596 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1598 PHONY += $(clean-dirs) clean archclean
1600 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1602 # TODO: Do not use *.cfgtmp
1603 clean: $(clean-dirs)
1606 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1607 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1608 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1609 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1610 -o -name '*.symtypes' -o -name 'modules.order' \
1611 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1612 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1613 -o -name '*.gcno' \) -type f -print | xargs rm -f
1615 # mrproper - Delete all generated files, including .config
1617 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1618 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1619 mrproper-dirs := $(addprefix _mrproper_,scripts)
1621 PHONY += $(mrproper-dirs) mrproper archmrproper
1623 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1625 mrproper: clean $(mrproper-dirs)
1628 @rm -f arch/*/include/asm/arch
1635 @find $(srctree) $(RCS_FIND_IGNORE) \
1636 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1637 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1638 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1639 -o -name '*.pyc' \) \
1640 -type f -print | xargs rm -f
1644 F=`basename $(srctree)` ; cd .. ; \
1645 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1648 @echo 'Cleaning targets:'
1649 @echo ' clean - Remove most generated files but keep the config'
1650 @echo ' mrproper - Remove all generated files + config + various backup files'
1651 @echo ' distclean - mrproper + remove editor backup and patch files'
1653 @echo 'Configuration targets:'
1654 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1656 @echo 'Other generic targets:'
1657 @echo ' all - Build all necessary images depending on configuration'
1658 @echo ' tests - Build U-Boot for sandbox and run tests'
1659 @echo '* u-boot - Build the bare u-boot'
1660 @echo ' dir/ - Build all files in dir and below'
1661 @echo ' dir/file.[oisS] - Build specified target only'
1662 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1663 @echo ' (requires a recent binutils and recent build (System.map))'
1664 @echo ' tags/ctags - Generate ctags file for editors'
1665 @echo ' etags - Generate etags file for editors'
1666 @echo ' cscope - Generate cscope index'
1667 @echo ' ubootrelease - Output the release version string (use with make -s)'
1668 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1669 @echo " cfg - Don't build, just create the .cfg files"
1670 @echo " envtools - Build only the target-side environment tools"
1672 @echo 'Static analysers'
1673 @echo ' checkstack - Generate a list of stack hogs'
1674 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1676 @echo 'Documentation targets:'
1677 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1679 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1680 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1681 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1682 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1683 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1684 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1685 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1686 @echo ' 1: warnings which may be relevant and do not occur too often'
1687 @echo ' 2: warnings which occur quite often but may still be relevant'
1688 @echo ' 3: more obscure warnings, can most likely be ignored'
1689 @echo ' Multiple levels can be combined with W=12 or W=123'
1691 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1692 @echo 'For further info see the ./README file'
1697 # Documentation targets
1698 # ---------------------------------------------------------------------------
1699 %docs: scripts_basic FORCE
1700 $(Q)$(MAKE) $(build)=scripts build_docproc
1701 $(Q)$(MAKE) $(build)=doc/DocBook $@
1703 endif #ifeq ($(config-targets),1)
1704 endif #ifeq ($(mixed-targets),1)
1706 PHONY += checkstack ubootrelease ubootversion
1709 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1710 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1713 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1716 @echo $(UBOOTVERSION)
1719 # ---------------------------------------------------------------------------
1720 # Single targets are compatible with:
1721 # - build with mixed source and output
1722 # - build with separate output dir 'make O=...'
1723 # - external modules
1725 # target-dir => where to store outputfile
1726 # build-dir => directory in kernel source tree to use
1728 ifeq ($(KBUILD_EXTMOD),)
1729 build-dir = $(patsubst %/,%,$(dir $@))
1730 target-dir = $(dir $@)
1732 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1733 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1734 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1737 %.s: %.c prepare scripts FORCE
1738 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1739 %.i: %.c prepare scripts FORCE
1740 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1741 %.o: %.c prepare scripts FORCE
1742 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1743 %.lst: %.c prepare scripts FORCE
1744 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1745 %.s: %.S prepare scripts FORCE
1746 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1747 %.o: %.S prepare scripts FORCE
1748 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1749 %.symtypes: %.c prepare scripts FORCE
1750 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1753 /: prepare scripts FORCE
1755 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1756 $(build)=$(build-dir)
1757 %/: prepare scripts FORCE
1759 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1760 $(build)=$(build-dir)
1761 %.ko: prepare scripts FORCE
1763 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1764 $(build)=$(build-dir) $(@:.ko=.o)
1765 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1767 # Consistency checks
1768 # ---------------------------------------------------------------------------
1773 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1775 # FIXME Should go into a make.lib or something
1776 # ===========================================================================
1778 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1779 cmd_rmdirs = rm -rf $(rm-dirs)
1781 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1782 cmd_rmfiles = rm -f $(rm-files)
1784 # read all saved command lines
1786 targets := $(wildcard $(sort $(targets)))
1787 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1789 ifneq ($(cmd_files),)
1790 $(cmd_files): ; # Do not try to update included dependency files
1791 include $(cmd_files)
1794 endif # skip-makefile
1799 # Declare the contents of the .PHONY variable as phony. We keep that
1800 # information in a variable so we can use it in if_changed and friends.